NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A
Edition: Model Aviation - 1994/07
Page Numbers: 43, 44, 45, 46, 47, 48, 49, 50, 51
NO OCR TEXT Ive developed winning record-holding Indoor models during last 32 years Super Cat II small D Indoor Stick design definitely class itself Its success exceeds wildest dreams ease Super Cat II knocked off new records almost embarrassing time writing world records pending because takes 8-10 months Federation Aeronautique Intemationale homologate approve Super Cat II really third-generation design objective design new wing FAI models keeping same area stretching span maximum would fit model box 35 inches wanted still utilize FAI motorsticks props gain added performance high-aspect-ratio double-tapered wing first version set Cat II world record flight 3712 Seattle July 20 1992 Next came Super Cat longer tailboom unique stab half wood half boron lighter proved too weak flexible sometimes stab film would get wrinkles distort causing flap like manta ray high drag did manage several good flights 12 minutes -length test motor Cat site before moved Super Cat II Experiments new Tan II rubber June 1993 proved shorter lighter motors possible rubbers superior power shortened motorsticks 14 inches lengthened tail booms 12 inches also increased stab span 18 inches separated boron rudder stab bracing post Prop diameter reduced 22 inches low pitch 34 35 inches better utilize last winds lighter motor Super Cat II features variable-camber double-tapered wing 56-58% center gravity CG variable-pitch VP prop boron ribs outline separate nylon adjusting screws maximum high pitch pre-load tension following extracts record claim dossiers Cat III 4514 September 26 1993 weather perfect Indoor models high 970F light winds low humidity flying site Dock 1 Norton AFB arched roof 80-foot FAI ceiling Its big problem hang-down lights extended 53 feet center third hangar lower both sides Flight above 53 feet required precision steering release avoid four irregularly spaced lights surround model never 15 feet away age 70 stress involved close limit addition 8-10 pieces huge disassembled C-141 field maintenance stand stored hangar floor largest piece 20 x 8 8 ft high Also five six hang-down ropes near hangar sides Upon completion satisfactory half44 Model Aviation t Cat II flying site Hangar 795 Norton Air Force Base has 47-foot ceiling large floor area Prop pitch very high launch very little forward thrust fully wound holds down climb After record flight Warren Williams counts unused turns Bob holds model Steve Brown looks Boron rudder prop outlines almost invisible Full-Size Plans AvailableSee Page 168 rT 1r1r1V1r TTVT 1 I I S V CI II 4 -IIiIIflIjIi1I6 IllI N N a 1jIjj i ihh iiiiiI j14j S 7 TX jj Pl II Il 51A / Ii motor test flights three official attempts made first attempt terminated 12 minutes motor suddenly broke dropped off Damage model sufficient go backup model tests Half-motor flights 2424 2136 2305 heights 50 40 39 feet indicated model ready first attempt resulted hitting beam exciting 15-foot tail slide before recovering 4119 flight made different motor VP prop adjustment ready record flight wound 2040 turns 13 x 0435 x 058 motor backed off 120 turns launch torque 27 550 pm floor reading 92F model launched climb very slow taking five minutes reach five feet altitude Lowlevel drift moved toward corner hangar 12-13 minutes model reached 18 feet increased its climb rate slightly steer required move away corner lower lights model certainly appeared underpowered surprise however continued its slow climb 62 feet about nine feet above lights estimate peaked 30 minutes Drift low higher levels two steers made avoid hang-down light lines As slowly descended drift increased later two steers needed avoid maintenance stand parts Super Cat II about 12 feet high passed old 4443 record cheer went up present model settled 4514 using 50 its turns yielding average rpm 413 Cat II 4532 October 17 1993 flying site Hangar 795 Norton AFB San Bernardino California retired USAF twenty years ago has level open-beamed ceiling 47 feet 7 inches high lights above beams physical obstructions three ropes hanging down near eastern side rained day night before leaky roof allowed water puddles remain hangar floor weather outside partly cloudy 10 mph winds temperature inside hangar reached high 780F Super Cat II design almost same used Cat III record About 7% greater power required usual because cooler temperature higher humidity made half-motor test flight 2030 decided ready official attempt however observers yet arrived Instead made unofficial full-motor test flight 4230 staying about eight feet below beams July1994 45 i 111] U UI Type FE FiD Indoor Wingspan 35 inches Rubber motor size suit site conditions Flying weight 0413 ounce less rubber Construction Built-up balsa boron/Keviar Covering Microfilm Top Super Cat II wing bracing jig Center multipitch propeller jig Bottom prop pitch checker field use observers arrived 3 pm anxious make official attempt carefully wound 1940 turns 13 x 0435 x 062 motor backed off 60 turns launch torque 35 model released inches floor climbed slowly steadily about 40 feet Eighteen minutes flight down 35 feet prop moved lower pitch started another slow climb peaking 43-44 feet drifted around somewhat main concern 20 pigeons flying about might collide model possibly spoil great flight Near 40-minute mark ship drifted within foot hang-down ropes Wood Hand Selected Fiberglass Cowl Complete Plans Parts Hand Cut Instruction Manual Photo Page no steering required model finally settled hangar floor 4532 turns remaining counted average rpm determined 357 Cat IV 5506 December 5 1993 another beautiful California day sunny clear skies light calm winds flying site Hangar 1 Marine Air Station Tustin California formerly called Santa Ana probably best Cat IV site world due its size good weather dirigible hangar has openbeamed arched ceiling 156 feet high center obstructions rows helicopters parked side hangar no real problem order kits call 1-800-327-7198 catalog fine kits send $400 Idaho Residents Add 5% State Sales Tax gun TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two different shapes available stock Ask hobby dealer name UsA TM Made U S PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY T LOOKS TY PO Box 836 South Houston Texas 77587 713 / 943-1867 Es required some steering huge main hangar doors closed three large entrances approximately 10 x 10 feet no doors almost seven years since last flew Super Cat II design same used Cat II Cat III records VP prop adjusted lower high pitch climb properly using heavier rubber half-motor test flight 2628 indicated prop/power setup about right carefully wound 2200 turns 14 x 0435 x 063 motor backed off 20 turns launch torque 42 350 pm model launched about three feet floor climbed steadily just below catwalk height 14 minutes quite concerned might outclimb site hang up since usually starts second climb about 18 minutes first steer made 19 minutes avoid catwalk model peaked out around 32 minutes 136 ft centered perfectlyWhen torque finally decreased VP prop reached its fixed low-pitch position model started its slow descent Another steer made about 48 minutes keep landing atop helicopters Part model s circle now over model boxes tables quickly moved back model finally settled hangar floor 5506 100 turns remaining average rpm calculated 377 After flight completed good friend former Fl D world champion Erv Rodemsky commented make look too easy Cat 3640 January 9 1994 January 9 1994 partly cloudy day high temperature 660F low humidity light winds flying site Academy Elementary School Gym hometown Loma Linda California used best Cat sites world due its 25-foot one-inch ceiling good air recessed lights solid wooden beams made hangups almost impossible Its 85 x 105-foot floor area surrounded six basketball backboards Two years ago school installed rows 2 x 6-foot soundproof hang-down panels lowered effective ceiling 23 feet Worst panel bottoms can easily catch wings upper bracing wires first three hours trials site cold air turbulence made flight adjustment difficult finally made several reasonably good half-motor test flights 2032 2029 decided attempt fullmotor official flight about 230 pm gym temperature 660F carefully wound 1740 turns 115 x 061 x 0435 Tan II motor backed off 60 turns launch torque 34 Super Cat II was released about three feet floor started slow steady climb reached bottom hang-down panels 46 Model Aviation PLANES HAVE 2 WINGS AND ROUND ENGINES 1/5 scale Waco UPF-7 72 14 lbs 1327 nine-inch wing post extension kept model below panels reasonably centered However steers still required because 50-75 contacts panels last touch 2912 Super Cat II settled gym floor 3640 320 turns remaining average rpm 371 CONSTRUCTION wood sizes use listed drawings experienced Indoor modelers Others should increase sizes 20 30% avoid ending up model too weak survive first flight session Wood selection expertise very important light-yet-strong models comes experience Since VP props boron ribs outlines difficult make cover describe lets start Propellers A VP prop provides additional flying time utilizing turns would have backed off using fixed-pitch props avoid going through site ceiling hanging up Additional time gained because super-high pitch start lower rpm fixed pitch Last least VP props provide excellent altitude control book advantages far outweigh 003-ounce weight penalty Cut two 1/16 OD bearing washers side beer soda can need make hole less 013 ream exactly 013 must admit break small drills usually end up piercing small hole using Bud Romaks extra sharp pins tiny reamers can obtained jeweler get Andy Faykun Make keeper washer similar manner 020 magnesium Keep hole size under 013 have force fit 013 prop shaft Dont forget deburr ends prop shaft find easier deform prop shaft before hook formed grasp 013 wire near end miniature round needle-nose pliers place anvil strike upper plier jaw gently hammer Keep checking deformity micrometer until have full 0 15 will find use too hard blow wire will severed Now force magnesium washer shaft until touches deformity Place shaft loosely vise washer end up Raise shaft washer about 1/& above vise tighten Drive washer down forced deformed spot shaft straight Now can bend hook washer side shaft Leave other end prop shaft long deburred Slide 012 driver arm front shaft align next washer lightly glue cyanoacrylate CyA glue Build up CyA cone over driver arm washer front side shaft placing shaft vertically vise hook end up Place drop CyA waxed paper dab small amounts pin takes about four applications always wait CyA cure between applications drive pins spring made 009 wire spring can bent around 032 drill rod form nine coils Glue two aluminum hearing washers hub usually cut dozen prop spars tapered stock measure weigh sort matching palrs dont sand prop spars very much keep square p U I I I U U U U p U U U U stronger spars must mate perfectly wood hub hinge overlap align hub spar flat surface tackglue Ambroid thinned acetone ease handling cut MonoKote two strips /2 x 2 inches Place MonoKote correct side hub across hinge line iron taking care crush wood Repeat other spar trim Monokote sharp razor Brush hinge overlap area acetone dissolve glue use fingers make hinges open acetone will effect Monokote bond suggest make L-pins U U U I U MANUFACTURED WITH THE PUREST FINEST QUALITY INGREDIENTS AVAILABLE Superior Igniters Improve starting idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion After-run oil needed U engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed U SIG CHAMPION 2-STROKE FUEL U PINT QUART GALLON $1095 $350$535$1395 fl $425$575$1595 $425$675$1795fl $535$855$2395 $640$950$2895E SIG CHAMPION 4-STROKE FUEL $1495 $1725fl SIG ALL-CASTOR FUEL 5% Nitromethane 20% CASTOR 10% Nitromethane 20% CASTOR$1595 15% Nitromethane 20% CASTOR$1795 5% Nitromethane 25% CASTOR$1495 Nitromethane 25% CASTOR$1695 SIG SIGNATURE FUEL U Signature Fuel$1395 FREE SHIPPING ON ORDERS OVER $1500 BUT ALL ORDERS ARE SUBJECT TO $700/Pkg UPS HAZARDOUS MATERIAL SURCHARGE Toll Free Orders 800-247-5008 FAX 515-623-3922 Modelers Hotline 800-524-7805 SIG MANUFACTURING CO INC ontezuma IA 50171 0% Nitromethane 5% Nitromethane 10% Nitromethane 15% Nitromethane 25% Nitromethane 35% Nitromethane 10% Nitromethane 15% Nitromethane Prices subject change notice BID July1994 47 U UK UUU uEU EUU uI GLOW FUEL II UKUEK 1/ inch extra length glue spars Slip spring shaft slide hub onto front shaft end spring driver arm must exert pre-load tension torque driver arms will fit L-pins adjust screw assembly must glued hub screw end aligned driver arm has clearance spring end prop spar screw max-pitch position must able get 75 inches pitch measured sixinch station Mark position spring end spar disassemble hub can drill hole #61 drill hub tap 00-90 pre-load screw Both nylon No Bubbles Covering Looks Great Long After Its Applied Film Over Film No Problem Steel Construction Made USA screws must filed flat ends prevent slipping off high torque fly just fun would suggest make ribs outline balsa want lightest strongest prop Bend outline tip shape holding over alcohol flame boron will turn white hot can formed Try get tip shapes match Boron becomes brittle treatment must baby tip will break make cardboard template blade lightly glue wood triangles ends ribs Next ribs broken off using thumbnail No Sags Works Iron-On Coverings No Need Use Any Prep Easy Use Real Breakthrough Covering Application Before beginning Construction 8 HE lLll aerate ply & balsawood parts sands Micro-holes will allow glue penetrate wood creating super strong structure After completing aircraft rHE sXOODPEKFR aerate ply & balsawood surfaces thousands Micro-holes will allow trapped gasses created heating covering material escape No outgassing means no bubbles sags covering stays put looks great long alter first applied apply film over film ply convert THE WOODPFKFR what ever configuration desire 123 4 wheels ate primary covering iron smooth apply next film Its easy NOTE Surface must free sanding dust prior covering Warning This toy out reach children See Hobby Dealer First Check/Money Order Directly UNIQUE MODEL PRODUCTS RO Box 2229 $B~og Lake Arrowhead CA 92352 VISA Visa & M/C AcceptedSorry No CODsDealer Inquiries Invited. that they little short outline Glue ribs top triangles Now wooden spacers glued underside ribs spar centerline boron outline must centered prop spar tip glued Bend boron square end first rib triangle glue Repeat until have glued hub end Break boron correct length hub end make balsa piece glue spar Mark spar centerline position rib spacers felt-tip pen Remove blade template carefully cutting triangles spacers loose Make second blade same manner attach blades spar need 34- 35-inch prop form have has balsa protractors inch can set pitch Tack-glue prop spar prop form align blade tip position glue Line up several ribs near tip spacer marks spar pin outline station time blade pinned down centered glue spacers spar second blade made same manner will note removed form ribs straight must give camber Place prop building board rear blades facing upward its tip end closest Starting tip glue length Kevlar leading edge directly over first rib Working over rib tension Kevlar obtain correct camber squeezing just past trailing edge glue trailing edge camber right Kevlar touches spar glue point also Trim excess Kevlar glue dry little practice procedure becomes quite easy As may have guessed covering also requires extra work Using strong blue microfilm tape off about four-inch section frame Using soft wet brush place prop carefully film tip flat Gently brush water tip station part next station touching film Allow dry about 20 minutes cut first station free hot wire Wet down another station half wait until dry cut loose Sometimes prop will lay film better shims used under hub Dont try rush process will have troubles Check prop low pitch six-inch station will find its pitch higher desired because could cover prop prop form boron outline tries straighten itself remedy brushing water around spar between hub blade Hold hub tweak spar lower pitch Let dry 20 minutes pitch 48 Model Aviation MANUFACTURING CO now imports Complete line World record holding ROSSI airCraft marine helicopter race car engines includes full line parts accessories plus full time ROSSI REPAIR CENTER US SIG-im ported ROSSI engines come full 90 day SIG WARRANTY against work manship manufacturing defects SIG MANUFACTURING CO INC PH 515-623-5154FAX 515-623-3922 . Montezuma IA 50171 Toll Free Orders 800-247-5008 THE WOODPECKER1M Pat Pew First Convertible Multi-Purpose Covering Tool NOW YOU CAN COVER LIKE THE PROS gauge Check again correct repeat treatment check other blade very important prop tracks perfectly doesnt use acetone reposition bearing washers Motorstick tailboom formed following standard soaking rolling baking procedures use metal form stick fiberglass boom form made old fishing pole get less taper stiffer boom use hypodermic needle glue seams avoid curved tailbooms glue shrinkage use special procedure Mount large end boom form horizontally vise Slip baked boom onto form clamp down form end /I6 inch bow form Glue seam keeping top side form glue shrinkage will straighten boom once has dried Rudder Round boron rudders easily made procedure Break off length boron 1/8 inch longer rudders circumference Cut 1/2 x 1 piece waxed paper place building board Hold boron ends atop paper 1/ inch overlap next other Glue slide waxed paper back forth until glue dries boron will spring back perfect circle two mounting boron pieces best glued hanging straight down As glue dries keep tweaking until perpendicular rudder Cover placing frame microfilm mounts up Wet entire rudder outline using soft brush completely dry trim using hot wire try use acetone trimming Wing Construction conventional except rib camber tapers fat end inboard wing generate lift its slower speed three built-up ribs have boron uprights require precision sizing get about 75% yield Lengths too short discarded too long place diagonal pliers cutter jaw break off oversize thumbnail will work about half time Dont try cut boron toolsit will ruin Wing ribs merely cut off lightly sanded dont use tapered banana-type ribs rounded wingtips made using heated one-inch curling iron Mark tip spar 3/8 inches apart moisten wood lips before bending tend spring back some keep rebending until desired shape achieved tips strengthened one-inch lengths tensioned Kevlar lay out wing frame remember just tack-glue dihedral joints simplify bending tips up after wing covered ways cover prefer shim up wing ribs flat board wet one-inch-wide ring around frame wet top surfaces lower slack frame microfilm over works will need build wing bracing jig provides washin between dihedral stations wing posts must fairly stiff may require boron reinforcement first eleven Super Cat wings reinforced posts Cat Cat IV models did wing post sockets round post ends square wing bracing single strands monofilament Kevlar bracing wingtips raise three inches keep fiat A1ER NXX~UF Stabilizer The stab spars cut tapered wood tips tapered sanding still use scrap splice join two halves CyA outboard ribs have 1/16 camber center rib has 3A6 Cover flat board shim under ribs retain correct camber After covering trim film hot wire Tail assembly leading edge stab should shimmed up can glued center tailboom end After dry glue four-inch bracing post left side boom perpendicular stab Install tungsten wire also left side starting boom ending FEATHER CUT creates new standard ease accuracy cutting white blue foam wing cores ds offl Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro t time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing making templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best THE CENTER OF DESIGN 3219 CANYON LAKE DRIVE HOLLVWflflfl tA 5 oUCtd1 July1994 49 ITS REAL ROLLING HANGAR WELLS CARGO Rolling Hangar works serious RC Model Pilot get great weatherproof transport convenient Hsafe storage Bird wings spare props radio organized ready go Buzzin anytime weatherman says OK models ranging 6 48 theres WELLS "CARGO trailer just right Plus get 3-Year Warranty Program really works CALL TOLL-FREE 1 -800-348-7553 Literature Prices & Nearest Dealer FEATHER CuT $14950 S & H 9 TEKOA THERMAL GENERATOR Power Supply $11950 S&H boom carefultoo much tension will increase stab camber Keep stab line boom obtain 3As negative incidence boom glued stick rudder goes right side boom rear mount inserted through boom wall Before piercing other wall sure rudder lines up stab bracing post front mount installed same way except care must taken avoid causing rudder camber front mount glued far boom wall can easily changed adjust circle size Brace leading trailing edge stab Kevlar keeping stab flat Insert boom Y8 inch stick stick boom bracing posts aligned 3/ negative incidence stab Locating wing position wing should positioned 56% center gravity CU location can done little algebra find easier use dummy loads wing motor physically balance model problem can approximate rubber weight would suggest using 050 ounce rubber weight Once fore aft positions wing posts determined remember obtain /2 inch left bank wing Drill wing post holes completely through stick Insert glue trim A6 ID Hot Box Flight SupportLands IT BRINGS EVERYTHING YOU NEED TO THE FIELD KEEPS YOU OFF YOUR KNEES Seat Capacity 300lbs Built iii Fuel Pump Large Trausnijuer / Storage Area LfI-out Five Conipartneut Storage Tray Power Pauel md Hobbico Shosn Photo Brands Vwy Security Lock faster 12V Power Switch Jooni Two J2VBalteries Fuel Proof Beverage ICup Holder Aircraft Quality Dineusions 2025XJ5 SXI3 Accessory Kit Afar West Affg & Dist Co PO Box J20 Folsom CA 9S763-J 206 961-4703 Hot Box HOTBOX ORDER HOT LINE 1-800-HOT-BOX2 FAX 916 983-1923 50 Model Aviation r sockets finished 0-rings impossible get torque want using 0-rings Partial test motors require 0-ring full motors need two Partial test motors feel very strongly unless understand use correct partial-motor test procedures wasting time also taking unnecessary risks model have spent hours constructing model just hook up full motor partial testing first same class Russian roulette -size test motor requires test stick exactly ance between prop shaft rear hook length weighs exactly three times lubed weight -motor tried Since motor turns can put model should launched normal launch height climb onefourth full motor altitude onefourth flying time four times number test flights can made error induced inaccurate procedure poor height estimates will compounded Different flying sites weather conditions will change optimum power Partial test motors help find new optimum motor length size faster safely After think Ive found optimum -motor like verify half-motor flight lot ground turbulence larger sites sometimes go directly half-motor testing procedure will also allow use small site adjust higher site Most test flights 23-foot site Last year made 1177 flights 18 full-motor flights six record flights Almost test sticks made 025 wire also have wire balances can quickly find right amount clay add center test sticks motor sizes vary Keep mind -motor test stick balance needs moment arms 31 ratio clay added must center test stick molded evenly around stick wire Failure will affect models balance crush its motorstick VP propeller adjustment Super Cat II propeller versatileit can adjusted ceiling heights starting point make up motor about 13 x 065 put 120 turns should keep prop full low pitch Launch about waist high keep catching model until level cruise flight Remove motor measure cruise torque want blades just start opening torque applied done pre-load tension screw flush hub either too high too low disassemble prop take spring off bend spring just opens cruise torque high-pitch screw should about midpoint its range LISMVIN$1KN nvniuuugiiuur urrcu $lflNpiua $5 Send ChecA Money Order COD Make Payabl Mac wt California Residents add Sales Tax WE WARRAN1Y WHAT WE SF111 Factory Authorized E-Z UP Corp Dealer John Peck Leisure Products Ltd 131 RAVENWOOD RD AILLES KY 40383 73-5172] Start again motor 3 x 065 put 100 turns get level cruise adjust wing incidence turn size Try keep model climbing /2 altitude backing off fully wound r Once model range can start opening high-pitch screw backing off less goal back off very little able launch high torque much high pitch model barely climbs until torque starts drop off model reaches altitude have chosen can decide power right turns remaining lands deadsticks motor too strong has turns left power too weak right motor good VP adjustment should use almost turns old rule 1/3 row knots too much pre-load tension sooner prop will start going low pitch Usually turn adjustment screw will advance start almost minute possible vary flight pattern changing pre-load tension can get second climb goes towards low pitch motor still has enough power large site second climb hard see because model fair distance climb very slow easy see Cat II site Anytime have high-pitch screw way out model still climbing too fast launch must rework screw amount provide travel Since prop driver glued sort baby hook up Until am ready launch take motors high torque holding hook end prop shaft takes some time before learn what change improve flight strange see prop speed up late flight know power has dropped off Once model flying okay flights should fully wound launch torque should kept fairly constantyou cant tell what change prop partially wound motorI would suggest fall love prop setting produced good flight feel am close optimum settings make /s-revolution adjustments also log changes flight book can always go back old settings Performance modelers have asked what secret Super Cat II has its outstanding performance tough question answer because factors contribute addition good design no secret fly lot has helped really master partial test-motor procedure learn adjust VP prop also seek out very best rubber available use also build lot concentrate few Indoor classes Lastly flight tests Cat site easier observe models flight fine-tune props built flown correctly Super Cat II capable very high performance Im very proud honors has collected wish good luck building flying Recommended Suppliers Indoor Model Supply 1887 Westhaven NW Salem OR 97304 Micro-X Products 5200 Seven Pines Dr Lorain OH 44053 FAI Model Supply Tan II rubber Box 3954 Torrance CA 90510 Ray Harlan 15 Happy Hollow Rd Wayland MS 01778 Model Research Labs 003 boron film 25108 Marguerite #160 Mission Viejo CA 92692 Bob Oppegard rubber cutters 140 East Golden Lake Lane Circle Pines MN 55014 1994 51 Wow Its Highly Anticipated Release Brodaks Lightning Streak newly designed Stunt/Trainer Control Line Plane now available local Hobby Store can purchase direct $4495 kit comes complete detailed set plans decals Order #4 catalog $300 prices complete no hidden charges pay shipping ship immediately Flying Fun Call now r UNLEASH the POWER WITHIN ELIZE its AWESOME typical 45 will turn 13-6 over 10000 get 3 minutes oz & idle well below 2000 k Bigger Engine Wont Fit More Power Bigger Props Super Economy Less Noise No Glowplugs Low Idle Ask local dealer call complete catalso Bud 0 eelt-addressed 75C stamped #10 envelope $100 credIted 1st order L DAVIS DIESEL DEVELOPMENT lex 141 d CT lOUD Uhl-1l1U A