Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203
Edition: Model Aviation - 1983/10
Page Numbers: 56, 57, 58, 151, 152, 153, 154, 156
Anne some practic Annes first relaxed appearar scram remove ear always weal engines phc 7 Rons favorite daughter left holds favorite airplane Its great family building project suitable solo project youngster has built two other airplanes picture right displays straight lines used Annes Plane An inexperi enced child can quite well cutting out parts sharp knife straightedge guide Anne painted flower decorations felt-tip pens bare balsa plane finished two brushed coats clear polyurethane varnish 56 Model Aviation N author classifies W design Step r 2 Control Line trainer uses Cox reedvalve /2A engine such dis carded RTF plane often can found yard sales Wed say model ideal young mem bers modeling familyE Ron McNally WHEN ANNE daughter eight years old decided work up small CL airplane could build together inspiration project ws $2 15 bag Sie odds ends balsa Anne converting sawdust shavings batch contained several light tiat sheets 7 balsa some 7 X um balsajust right small slab-wine air plane idea led another soon sketching wing stab elevator fuse lage shapesseeking Annes approval went along Simplicity interesting ap pearance easy hying qualities criteria fuselage construction two 6 x ps /3 spacers results almost tbolproof wing/stab alignment 116-in thickness helps too /i-in wood often used always breaking plane easy build makes good joint project father child should also good solo project child has built two models previ ously some guidance inex perienced youngster can pretty well cutting out parts straightedge modelers knifeespecially some wood can wasted plane very easy fly stable being nose-heavy goes aim jumpy skittish will smooth loops eights wingovers line spacing handle 4 beginners first tliehts handle line spacing 2 seems about right Engine Before starting construction will October 1983 57 Details surgical tubing bladder tank A Goldberg adapter Cox 290 5/8-in aluminum cigar tube holds engine recent Cox 290s dont need kind tank Cox 290 engine has giv- adapter engine mount made 1/8 en exceptionally steady runs plane may plywood engine mount brace easily adapted integral-tank engines No 2 sheet metal screw A-in length used mount bellcrank Goldberg AA unit single 1/8 ply bellcrank mount used model author now prefers two 1/16one top bottom Pushrod 047 wire stiff enough need guide once desired flight trim achieved guide helps prevent handling damage Author has small cotter pin guide paper clip bent like end small safety pin would also work well An adjustable pushrod control horn helps setting-up flight trim matching control response fliers experience An 047 spring thread soldered pushrod Gold berg mini snaplink Goldberg short con trol horn provide needed adjustment first estimate proper Ieadout position too far forward Moving front leadout bit rearward corrected problem Plans show correct positidn penny provides right amount wing tip weight balance 35-ft 008-in strand ed steel lines about 1% pennies 42ft Except really calm wind 35 ft best Any doubt about owns airplane FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 1/16 PLYWOOD LEADOUT GUIDE COO 290 ENGINE FROM OLD PLASTIC RTF PLANE 049 L1/8 PLY ENGINE MOUNT CANOPY----0R PLY ENG MOUNT BRACE OODBERS 02 ASEE TEXT FOR OPTIONA RELLCRANRFUEL SYSTEMS EADODT INES 9 / / 08 PLY LEADOUT GUIDE I/B PLY REL CRANK MOUNT M POORROD T30 BALSA SHEET STABILIZER B______________________ ELEXATOP GSE SEWED RINSES /18 ID I/TO WALL SRGICAL TUBING BLOB TGBE VB ID/ 0/02 00 COUPLER SOFT NEOPRENE1I /OA 0/22 PLOG TUBING 3/021 TX ENGINE TWO WRAPS OB COPPER WIRE TWIST TIGHT B FOLD OXER BLADDER TANK DETAIL NNX WING TIP WEIOHT 0/02 BALSA SREET SLOE SEAMWINDS lB GB C GRAIN BALSA FODELAGE U/OO BALSA OHEET RODDER NO SCALE I/B PLYAXOD ENGINE MOUNT WRAP TIGHTLY WITHOB SXFT COPPER WIRE 0URS/B \ '9 FOLD LEADOOT END BACK & WRAP BACR -OYER IT WITH THE CLIP OFE LOOSE0B COPPER WIRE ENDS WREN DON LEADOUT DETAIL INS SCALE CANOPY 0/00 BALSA ShEET 5/16 BALSA SHEETRADRER OR PLYWOOD0GOLDBERG ENS 101ST BRACESM HORN COO 050 ENGINE 049 0/00 STAR B 0/30 5/1KFUSELAGE SIDEELESATOR BALOD SPACER VIEW047 MW PASHROD COD BABE BEET--.. ENONE FUSELAGE 0I0045H IVIEW FOXELAGE SHORTENED FOR COO BARE- BEE ENGINE FUSELAGE SHORTENED 1-24 FOR COD GOLDEN-BEE OR BLACK WIDOW ENGINES MODEL AVIATION LA S PLANE DESIGNED BY RON MCNALLY DRAWING BY JOE DEMARCO IALL RIGHTS RESERVED necessary decide use Any Cox reed-valve engines suitable Cox Medallion would also good choice mount modified Cox TD suitable airplane used Cox 290 plastic RTF purchased garage sale small surgical tubing pressure bladder used tank someone bladder tank experi ence always available start engine set needle valve setup gives best engine runs doesnt miss beat through set sustained maneuvers doesnt cut out overheads can also use small wedge tank Cox 290 engine Based experi ence may desirable convert tank venting uniflo configuration Some vari ation Jim Walker balloon tank could probably also made work well Cox 290 planes nose will need shortened other engines shown plan presumes build about same tend build heavy fudge bit towards longer nose requires less lead balance nose-heavy model like mount reed-valve engines cylinder outboard side fuselage needle valve inboard side helps provide out board weight puts cylinder-needle valve out way crash damage integral-tank engines fuel pickup will need moved still outboard side tank tank vents should oriented up down usual except Babe Bee Babe Bee tip plane fill tank plug vents some fuel tubing stopped cut-off finishing nail Babe Bee tank wont leak fuel plane returned level flyingeven inverted flying outside maneuvers absolute beginner presson has yet successfully fly out tankful fuel help some maneuverability should sacrificed durability Sub stitute -in wood fuselage /B-in wing stab fin spacers Similarly absolute beginner engine run reliability during sustained maneu vers important convenient re starting engineagain again again convenient setup circumstance Golden Bee Black Widow its integral tank Finally compensate extra weight make nose length up er recommended en gine Construction pretty straightforward Most modelers will able glance plans skim rest article decide themselves proceed However sake younger modelers limited experience am going provide fairly de tailed instructions Unless otherwise specified glue means aliphatic resinsuch Titebond Sig Bond etc gap-filling cyanoacrylate CyA glues could used instead speed things up would have chance correct mistakes Children should use CyA glues adult super vision epoxy gluing should done experienced modeler adult vir 58 Model Aviation /8 PLYWOOD BELLCRANK MOUNT Sewn figure-eight hinges quick very flexible Use 4A Dacron flying line sew needle after plane has painted Four simple hinges like the right will need Continued page 151 really flying upside down can tell shadow canopy Annes Plane has proven quite maneuverable small flat-wing airplane Its also quite durable produces maximum torque airplane rest moving very slowly takeoff stall high-speed flight propeller operating its best L/D rpm increases drag torque its minimum propeller unloads say case Helicopters rpm low line flight close rotor disc disparity blade angle between advancing receding blades becomes factor contend same thing P-factor torque future article 4a Torque additive two engines turning same direction torque will twice great produced engine other hand rotation re versed engines torque cancels out airplane free its effects rotation arranged pro pellers swing up out respect fuselage spanwise lift distribution enhanced asymmetry disappears 5a Climb result application power sufficient excess power applying elevator can slow air plane down cause stall 6b A pendulum will work fine long straight flight maintained shown Figs 4a 4b since wants hang down under condition Sooner later relative wind will change initiate turn does centrifugal force will throw pendulum away center turn cause irreversible spiral dive shown Fig 4c 7b An airplane wants fly angle attack speed trimmed horizontal tail also wants turn relative wind 8b A biplane inherently less efficient monoplane because mutual inter ference pressures between wings unfavorable upper wing loses positive pressure its underside lower wing gains pressure over its upper surface 9b Longitudinal stability function CG location CG must always lie ward neutral point See April 1980 MA Lets Talk About CG 10a Lateral stability largely provided dihedral low-wing monoplanes straight unswept wings High-wing monoplanes have effective dihedral due high placement wing little no geometric dihedral required Swept wings Delta wings also have effective di hederal due sweep leading edge fact some highly-swept wings require negative dihedral anhedral placed high fuselage British Har rier II a&c fuselage must have tail Otherwise does indeed want set itself perpendicular airstream fly side ways 12b&c Spiral dives caused cx cessive fin area coupled insufficient di hedral will go length future article 13a&b Dutch roll caused sufficient fin area together excessive dihedral small fin allows fuselage yaw dihedral overcompensates cause lateral oscillations 14a&b mass air accelerated downward reacts produce upward force called litt curved path air stream over wing manifests lift pro duced form increased velocity lower pressure over upper surface decrease velocity increased pressure over lower surface thus distributing lift over wing ISa True precise relationships between large small things having same configuration means operation pointed out beginning article 16b use Lift Equation will subject next article nearly formidable looks useful understanding wing area weight speed etc interrelated 17a Washout together increase camber wing tips desirable prevent tip stall 18all Reynolds Number has things See Lets Talk About Reynolds Number February 1979 MA 19b stable airplane has its CG forward neutral point center total lift whole airplane Therefore must down load horizontal tail keep nose up has effect moving net lift forward CG 2Gb maximum range real air plane wing incidence normally set angle Max L/D airfoils about three degrees downwash wing usually adequate trim airplane level flight cruising speed producing down-load tail tail set zero incidence Pattern models having symmetrical airfoils desired have no sur prises flying upside down something said setting both wing tail zero degrees done airplane will fly however unless some up-elevator applied trim wing positive angle attack Thus airplane can maintain level flight fuselage attitude slight climb would suggest maybe Pat tern jobs should designed flaps can deflected either up down provide positive incidence form camber either normal inverted flight Maybe already havent progressed Pattern flying yet well did score Dont hesitate write have questions polite com ments Bradford W Powers 5470 Castle Hills Dr San Diego CA 92109 Annes Plane/McNally Continued paoe 58 tually impossible younger modelers avoid gluing themselves Industrial expe rience epoxy seems indicate everyone will become allergic epoxy enough exposure Avoiding inhaling fumes skin contact allows safe use Bill Effinger suggests Plan N Pattern SetsrM offer really beautiful Full Size Plan Drawings Material List Parts Drawing fabricate superb replica design Prom Hobby Dealer TESTIMONIALS have seen two plans make other com panies plans look sick plans make building scratch like kit building RMacL. New York SPAD C-XIII World War 13 31 Engines79% WIngspan 2120 Sq new design offering makes beautiful R/G replica WW-l era 2120 Sq area its big aircraft capable flyer captures imagination Plan N Pattern Set #RCQS-U @ $2495 rldWarl SE-5A Quarter Scale RIC Far 78 22 Engines 80% Wingspan Sq Inches Area Plan N Pattern Set #RCQS-7 @ $2495 FOKKER TRIPLANE DR-I Giant 1/4 Scale R/C Design WW-l 78 160 Cu Engines 72 Wingspan Triplane Sq Area Plan N Pattern Set #RCQS-6 @ $2495 otter beautifully prepared Plan Designs best Full Size Layouts Parts Drawings Bill ot Materials data create own replica Saves substantial amounts over full kit costs Prices Complete Plans Sub Assembly De tailed Parts List Add $200 tor Mailing Tube SEND FOR BROCHURE ahead crowd New Brochure showing new designs tor 1983-84 Send $100 refundable first order October 1983 151 -FGLOW ireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal Six Types 3 Heat Ranges Longer Life Only $129 SwansonAssociates PO Box 151~ Since 7948 Wayne NJ 07470 very useful adhesive reasonable amount care plane can built weighs 4 4/ oz original weighs 4 oz bladder tank 4 oz 16-oz-capacity wedge tank ilies fine either weight effects extra asily noticed Avoid excess glue excess pig mented paint original decorated felt-tip pens finished two brushed coats polyurethane Anne did decorations helped brush poly urethane Wing better join two sheets wood use wide piece Its less ex pensive easier find flat warp-free 2Dealer inquiries invIted connecting rods made best materials available designed give long service eliminate rod breakage modern highPerf mence model engines Used leading aircraft boat car racers hobbyists Rods available popular model engines Look RPM new innovative products proven performance records Richardson Precision Machining Inc 5070 Golden Dr. San Jose CA 951291408 257-7069 3-in sheets find same 5-in sheets Youll need 2-in 3-in sheets Y32 X 36-in balsa should lightweight firm C B grain speckled Cut 18-in length both 2-in 3-in sheets True up edge trimming off very small sliver using sharp modelers knife straightedge sure knife cut vertical edge IS square Test-fit two edges together necessary square things up large sanding block 320 paper satisfied fit hold two edges together tightly flat board run i strip cellophane tape down seam Turn taped-together sheets over bend open seam lay head glue joint pin sheets tape-side-down flat board Clean up excess glue damp paper towel leave sheets dry overnight dry remove board remove cellophane tape sand seam 320 paper large block necessary Measure carelully cut wing out line shape sharp modelers knife straightedge Dont round off lead ing trailing edges yet Stabilizer elevator Measure carefully cut out stab elevator remaining 2-in sheet helpful tape elevator stab together dont glue prior cutting Ehe outlines Use straight edge sharp knife Vertical fin Using same technique used wing glue together three pieces Y sheet vertical fin Use some remining 2-in wood some wood trintmed trailing edge wing certain grain verti cal Use straightedge bottom cut follow tentplate plans rest Cut oversizeespecially toward front fin Sand final outline later fin glued fuselage Fuselage Select straight strip 5/ X x 36-in medium-hard balsa Cut two pieces 12 long shorter some en gines Use razor saw make cuts square possible prefer NEW R/C BOOKLET Answers questions often asked want started RIG 5Amss\\ flying PLUS troduces best airplane start EN 5iS55d5aseS FALCON receive copy SEND $2 113 TO ST CROIX OF PARK FALLS LTD PO Box 279P Park Falls WI 54552 may leave strips longer cut cor rect length fuselage assembled Cut two Y12 X /s spacers scrap balsa trimmed wing rear spacer should 4 long front spacer should 1/16 long shorter some engines Cut 3-in block canopy remaining 5/ X 3/4 stock Dont cut shape until glued fuselage Cut 1 x -in engine mount /s plywood block-sand edges square smooth will installed long sides vertical Cox 290 engine requires Goldberg adapter engine mount will installed longside-horizontal Babe Bee Golden Bee Black Widow Cox 290 engine does require adapter Cut 5/ic-in engine mount brace /s plywood 11/4 l/2 long depending engine used way engine mount oriented Block-sand edges square smooth Cut two /s x /x-in bellerank mounts /16 plywood glued top bottom wing avoid having purchase both Vis / plywood single /s-in bellerank mount may used top wing Block-sand edges smooth Round off inboard corners shown plans sanding block Control system Cut /4 X /4-in piece V16 plywood line guide Drill 152 Model Aviation Tired Being Shot Down SUPER SERVO GARD Controls Throttle Cant * Constantly monitors receiver interference another trans mitter outside sources instantly reducing throttle idle until interference clears * Constantly monitors flight battery pack voltage instantly reduces throttle idle allowing time safely land * Responds instantly loss radio signal throttling back idle alerting flight problem * Affects throttle giving complete control other servos safe landing * Minimizes crash damage caused signal loss ending full force smash-ups Endorsed IMAAShow Team required show model flown SPECIFICATIONS Size KPS 1411 Servo case Power 17 ma Volt cut-Out Point 46 volts Pulse Width Range Ad] 0628 milliseconds Systems 3 4 wire TemD Range 00 1400F Weight 12 oz Price $4795 Postpaid Specify connector type md positive negative pulse ordering RF Enterprises 106 N Main St. Arlington OH 45814 419 365-5056 E~UIC High performance model enMine connecting rods RIC Capitol offers worlds finest RC custombuilt-up RC scale aircraft Quarter Scale PlansEs S2495PP Quarter Scale Partial KitsEs S95OOPP Quarter Scale Custom-Built DeluxEs S500OOPP Piper Pacer PA-20 89 Wingspan Piper Tn-Pacer PA-22 89 Wingspan DH-85 Leopard Moth 111 Wingspan DH-80A Puss Moth 111 Wingspan Please send $100 self-addressed stamped envelope complete list HOBBY CAPITOL RIC Est 1951 46 N Oak St Ventura CA 93001 805 643-7616 e 642-8465 Distributors Finest Quality Built-Up RIC Aircraft custome Built Ready-To-Fly Radio controlled Model Airplanes WAIT TUE 5CAL 11KW Pawnee Duster $16496 Add 81000 postagehmndling * 90 Span * 15-17 lbs * Built-up Fuselage * Foam Wing * Quadra Power DEALER INQUIRIES WEL COME Send $100 catalogue two /s-in holes separated Vs-in centered Harden holes drop thin CyA glue Block-sand both sides edges until smooth Round top two corners Smooth inside holes 320 sandpaper again apply some CyA glue harden will need following items Carl Goldberg bellcrank 2 Carl Goldberg small control horn packaged bellcrank will too short hence too sensitive 3 Carl Goldberg mini snaplink 4 047 wire pushrod 5 Du-Bro 047 spring thread coupler Equivalent items may used course suggested control settings might have adjusted Fuselage assembly Check certain 5/-in edge fuselage strip absolutely flat Flatten necessary sanding against 240 sandpaper placed flat surface Glue spacers between 5/o-in flat tened edges fuselage strips wing stab slots properly positioned correct length Only spot-glue top fuselage stick can easily cut away later Glue canopy block position Place hardwood blocks both sides fuselage wing stab locations rubberband together top bot tom will align top bottom fuse lage strips Rubberband top bottom fuselage strips together balsa pads necessary prevent marring Similarly rubberband canopy position Set aside dry over night helpful dry run first fuselage assembly difficult hut dry run will make everything clear obvi ous dry remove rubberhands etc. block-sand both sides fuse lage until flat smooth spacers deliberately cut oversize make fitting easier Now excess must carefully sanded away Using templates traced plans straightedge necessary mark fuselage can opy outline cut shape Dont shape fuselage forward wing until after engine mount tached Cut slightly oversize block-sand final outline Either coping saw large knife may used best remove small amounts time working toward final outline Glue vertical fin fuselage should centered aimed straight ahead straight up down mistake made should vertical fin will turn airplane outward help maintain line tension after complete find vertical fin will turn plane inward remove correct glue has set sand fin outline final shape Round off rear part fuselage along vertical fin much easier now later after stab glued Use small modelers knife finish small sanding block First use 240 paper remove cut marks use 320 paper Split apart fuselage spotglued Glue both sides wing slot place wing position glue fuse lage back together sure two fuse lage parts lined up split points make almost automatic Also certain wing square centered fuselage Align necessary before glue sets up too much glue grabs before get everything lined up dis assemble parts before glue dries completely try again satisfied clean up excess glue damp paper towel set aside dry overnight Afterwards glue stab place certain centered square fuselage Clean up excess glue set aside three four hours dry over night Check front fuselage sure no upthrust downthrust slight amount outward thrust alright Expand slot engine mount brace /x brace fits snugly Glue place 5-mm epoxy sure brace centered square fuselage engine will point straight ahead epoxy has set check see mount fits flat against fuselage ATTENTION 0 P S Enines& Parts Racing Marine Use OPS 15 V Quarter Midget OPS 45 Marine PLUS Custom TD 0491051 engine parts Complete inventory stock custom parts COX TD 049/061 engines Fm cemnp4t Infmmau. sa$Z P&G Metal PrQduCts 301 North Yale Drive Garland TX 75042 Gene HempeI214 272-52101aftrStigJ PMJ From~jen tion nl FAIRCHILD 22 34 Channel Radio Control Kit #107 $3995 099 16 EngIne 48 Wingspan DaIr 8 Ditribtor Inquiries Please send 50e Phone 7031 273-9593 Ci Flyline Catalog Flyline Models Inc PO Box 2136 Fairfax Virginia 22031 USA October 1983 153 PO Box 9044 LIttle Dax& hplewnin 72219501J 224-8044 L PEPPERMINT PATTIE-60 Designed Wa m k PC1 5 gREG ASS USE AGE w ICrIPO5IA neng FLITEGLAS MODELSSee yOrr dealer S 50Cr Oract WINGASTABILIZER FOAM CORES 0thW te 0 5PC C CC Ply USeCtICO AILERONS ELEVATOR S RUDDER C HARDWARE- hinges ailerOn UUflflCCIUrb 2 FAIRWAY WINGSPAN-65 AREA-H$U egi ENGINE-AS WEIGHT 75 tO B ISO FLY THE BEST brace Orient engine mount correctly engine using glue place 5-mm epoxy certain mount centered properly epoxy has set taper front fuselage match engine mount Round off fuselage starting front just knocking off its square edge gradually increasing curvature until edges completely rounded midpoint wing toward tail Completely round canopy use small sharp knife start block-sand 240 paper finish 320 paper Glue IAsin plywood bellcrank mounts position top bottom wing Also glue line guide posi tion Use 5-mm epoxy gap-filling CyA Mark bore 1A6.in holes mount engine thrust line should centered wing stabalso sideways fuselage Mark bore IAsin hole bellcrank Harden holes CyA glue deburr wood wont strip repeated loosening tightening #2 sheet metal screws Sanding Use sanding block 320 paper taper wing fin elevator trailing edges Yr-in blunt edge Round remaining tips edges wing stab elevator fin Dont forget round stab-elevator joint edges Harden leading edges tips trailing edges application CyA glue Dont harden edges along stabelevator joint io over entire plane smooth rough places 320 sand paper point plane complete except finishing installing control hardware installing enginein order Finishing weight breakdown original plane using postage scale follows complete plane less hardware paint engineI oz 2 Felt-tip-pen decorations two brushed coats polyurethaneI oz 3 Control hardware bladder container oz 4 Engine prop mounting screws bladderl 1/2 oz Clearly cnly place save weight finish Since completing plane have found can lay extremely thin coats polyurethane using Poly Puf brush inexpensive foam brush used decoupage takes three coats finish ihe Poly Puf compared two normally-brushed-on coats total weight added Poly Puf about half much Brush marks minor Poly Puf possible child good job using brushes Painting should done outdoors good ventialtion shade var nish wont blister Hang model shed garage dry. wont have put up odor smell can make sick fumes arent good anyway good ventilation working outdoors eliminates problem Wipe plane dust-free soft cloth prior first coat polyurethane Dampsand between coats #400 wet-or-dry sandpaper Wipe plane dust-free damp paper towel prior second last coats Prior painting decorate wood felt-tip pens Some bleed balsa others test first some scraps able brush polyurethane right over decorations test also Alternately may spray-seal deco rations complete spray coat brush out everywhere except over decorations Poly Puf keep coat thin uniform get some varnish hands painting wipe off immediately paper towel etc Clean yourself up after wards scrubbing vigorously soap water Dont use solvents such alco hol dope thinner acetone polyurethane thinner carry varnish deeper skineven though sur face seems clean Flecto Varathane Valspar Polyurethane Pactra Formula U Glaskote okay intend change brands tween coats test first trial piece scrap balsa Continued page 156 Hobby Swap News THE MODEL ENTHUSIAST 0U$ED EQUIPMENT GUIDE Buy other modelers save 50% used equipment bargains other publication tree ad comes new eebscription 154 Model Aviation GOITIOLINI TINIS PROFILE0COMBAT0RAT WIDE & NARROW WEDGE 15 -- 6 oz Capacities UKIFLOW & TIIDD Guutrn DmA Fumi Ingredients detailed bochure50C stamps/cheek oni CAROLINA-TAFFINDER 8345 Delhi Road Charleston Hgta. SC Silt 803-563-7169 City & elate71p C 1 yr 3rd class $10 C 1 5 1st class 012 Rosa acbeclCtIsn erass eva tree earn Hobby Sean See. Dayt H PO 50 22858 SC Clefs CA 52122-UCOf Portable pmer glow plugs fits sh,t poCketi UsiCg lfeCdlockTM adapter allows tC stay plog end get etC propeller Rechargeable op 1000 times gg day warranty NC hClky batteriec cabled Order eey Ni-CTARTER either lift 220 12 volt fast charger InstrsctiOnd included Also available Withoat charger See poor deale order direct Vine ft Mastercard accepted Please specify type cherger Add 0 150 postage IUSAI NI-HL ilifty. 52155 NI-lIL-lE 220 o. 02105 NI-HI-lA 12c adep. $21 Q5NIHL-1-NC No charger $1255 12721 HasKell La Sowle MD 20718 t3011 4642260 Last details Attach bellcrank -in #2 Sheet metal screw Sew elevator using Dacron flying line figure-eight stith Dab small amount gap-filling CyA knots needle holes using toothpick apply glue Dont use thin CyA will wick throughout hinges lock Position control horn pushrod holes above hinge line pushrod will parallel fuselage Mark bore holes elevator control horn 1-larden holes wijh thin CyA glue deburr holes CyA glue used way prevents crushing elevator [he control horn attached Attach control horn will need about 9-in piece 047 piano wire ihe pushrod Bend Z-shape end attach bellcrank cut 8 froiri bend Solder spring thread end provide neutral adjust ment An adult experienced modeler should help soldering Install along mini snaplink attaching control horn prefer may use Z-bends both ends along adjust ment kink Dont install pushrod guide until after few test flights 047 wire stiff enough flight loads will want support once plane trimmed out protect pushrod getting bent handling Make up lead-outs using good parts some ruined 015 0 18 strand ed steel flying lines Cotitbat contest should yield some Form loops wrap #28 soft copper wire shown plans See also AMA rule book page No 17 Alternately may use hard-finished 20-lb-test kite string tie lead-outs Watch closely fraying replace often Steel lead-outs preferred Glue penny position outboard wing gap-filling CyA Attach engine using Va-in No 2 sheet metal screws Cut small cigar tube about 4 long bladder holder attach above outboard wing against fu selage thin servo-mounting tape Seal penny wing weight hinge needle holes exit holes en gine bellcrank screws poly urethane Hang up dry Flying Check CG first between nd leading edge fine slightly nose-heavy OK first few flights tail-heavy balance point must corrected before fly ing pushrod should adjusted equal elevator travel both ways Use top hole control horn first few flights Use 5 x 3 nylon prop fly plane 008 x 35-ft steel stranded lines Feel airplane out slowlyfirst level flight big loops big eights inverted flight move CO small steps testing change before going may become bit soft lines some rearward CG positions shim inside screws engine mount small No 2 wash ers give out-thrust original has flown 30-ft Da cron lines well 30 35 38 42-ft 008 stranded steel lines abso lutely calm fun fly 42-ft lines otherwise 35 38-ft seems about right Right now original model rigged use top hole control horn CO trim trainer zips right through big loop very smooth steady Tighter turns pos sible CG shifted back /x will nice later Using pressure bladder big mystery can difficult start out impossible combination combination thai worked just fine fol lowing Very well-worn twin-port Cox 290 new engines until have run lot much trouble 2 Bladder made I/ioin ID A2-in-wall surgical tubing can obtained Kistorn Kraft manship Sig 3 5/ x 3 Top Flite nylon prop too much prop no needle setting will work 4 Cox Super Power Fuel other fuels will no doubt work fine does sure 5 Add spring needle valve unless change nylon seal daily needle drift may problem will need small 10cc syringe fill bladder clamp pinch off fuel line experienced running engines bladder pressure get experi enced help Have fun version Annes Plane CL CombaVJohflsOfl Continued page 60 told findings new Fox Mark IV Gene machinist de cided take couple engines work see what right ng major problem flanges sleeves square Drop sleeve crankcase would seat way around No amount lapping would thing about either suppose problem varies engine engine reason lot engines bind once screws tightened headelamp also prob lem some engines encourages leak rather seal Gene reported crank timing also off user-fixable have Dremel tool degree wheel above maladies probably wouldnt keep Mark IV running fairly well would never screamer Ive seen dead-stock verywell-fitted engines go fast hop-upsand often times faster b maneuverability move cause hop-up really de-tune pushrod down hole control horn people hop-up engines also have brave enough move CO back precision-fitted theyre ones far 7/ inno farther that go fast 156 Model Aviation FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST UURT $119 WHO $119 RC SHORT Si NC LONG $19 Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow st FOX PLUGS THOSE WHO WANT THE BEST F OXMFG CO 5306 TOWSON AVE FORT SMITH ARK 12901 Hot tieu 501 646-1656 Hobby Horn Wing Span--iSO Wing Area--ISO SqAK6l4/ SENSOAR glider HOBBY HORN EscIusieI HOBBY HORN Kit Th SENSOAR did kit isa high qsality kit Machine cot ed parts Select quality balsa spruce Detailed plans et-itten instructions Fo THERMAL sr SLOPE o 95 ELECTRIC POWER VALUE PRICEOUt 51900 __________ Full ajiSPirtial Kits full strOpwosd plan Now mel Wire Window etc Mat. Notes may purchased lust Os semi kits plans-write call prices 1906 Buobaneer64-95l 1938 Clipper MIt I-72--S39 1937 Dallalre Sptaer106S61 1940 Ranger-40- 527 1939 Mrvury72S16 1931 MIss Amerloa84--9I9 1941 Playboy Jr14S2S 1941 Playboy Sr-90946 1938 Pomee HoueeS4--S43 1941 Sailplane-78-- $74 1940 So Long-SO--$21 1938 Trenton Terror-72-532 1939 Z1pper14-S48 1939 Korda Wakefleld44- $17 MIDWAY MODEL CO Semi-Ella Comltned sIstrtp 1938 PlyIng Quaker-84-$49 1937 quaker Plash-6T930 1937 Long Cabtn78942 1937 Air chtef61-949 UTNUCKS 1940 79 Span 035 Sq new ruler SEMI-KIT tPlan lncll--S3300 Combo Pull Kit------- $6309 QALU PLANU DRAWINGS StO HEINKEL HE-bOO 62 abs $1009 5141 PINGAND HANDLtNGage Up $880 add $110 $209 PPIlst class $881 $2000 add $221 copy will sent $2001 $4100 add $200 free--when requested-$4101 $7000 add $150 order over $7000 sdd $400 HOBBY HORN CA Addressees add 6% tax 0hobby specialties5 Send MO visa/MCt#-Exp 19173 MoranStreet [A] Check tallow up 30 PO Boa 2212 days check cleerance Westminster Ca 92663 J COOExact Charges 719 893-8311 Hdl Cash OnlytAU UPS 719 8951203