THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp
Edition: Model Aviation - 1991/10
Page Numbers: 40, 135, 136, 141, 144, 145, 147, 148
THIS MONTH Im going pass along two articles first written Art Arrow NMPRA President 1980 proved very helpful promoting racing welcome copy hand out people area second article Id like show written Brian Richmond printed 11th Lap newsletter Its subject prop technology goes Radio-Control Pylon Racing Art Arro THE URGE TO RACE dates back early civilization foot chariot races held during Greek Roman periods risk excitement challenge racing basic human nature Racing appeals due its objective method determining winner ie first cross finish line shortest elapsed time start finish little subjectivity judging outcome race Presently enjoy races involving boats automobiles horses turtles Races involving aircraft began shortly after advent powered flight Wright brothers Likewise racing soon started field model aviationfirst rubber-powered Free-Flight planes later Control Line Team Rat Race events ability precisely control model three dimensions provided impetus RC Pylon Racing know today fact first suggestion RC Pylon Racing made 1948 Nationals Olathe Kansas initial rules presented AMA RC Committee 1956 first AMA Pylon event flown 1957 won Howard Bonner semiscale Bonzo Two years later finalized version rules adopted AMA RC pylon racing born Early Pylon Racing flown over two-pylon course pilots standing center determined winner would plane posting shortest elapsed timewhich would calculated highest speed early form Pylon Racing no aircraft design specifications because low drag flying wing delta models dominated event mid-sixties strong wave interest racing scale-type aircraft simultaneously over triangularshaped course similar used full-size Goodyear Midget Racers flown late forties Originally flown Exhibition Event 1965 1966 Nationals Goodyear model event became official 1967 Nats Los Angeles soon became very popular current RC Pylon Racing has developed four classes events separated aircraft requirements engine specifications fuel restrictions course length four AMA RC Pylon Racing events Formula Quarter Midget Sport 1AA specific rules printed AMA Competition Regulations Quickie 500 Formula 500 popular variation Sport Pylon has largely replaced event Formula Quarter Midget retain scale-like aircraft requirement RC Pylon Racing flown basic administrative system used conduct races similar events models launched three four plane heats common start/finish line using handicap draw system order takeoff pilots fly models via radio control systems attempting navigate craft around triangular course nearly perfect manner quickly possible Continued page 135 40 Model Aviation Pylon Racing Bill Hager 4 Holly Springs Dr Conro TX 77302 Rick Tolli left calls Jerry Small Randy Ritch does same father Dick Ritch leading Jerrys antenna tells tale Control Line thats called whipping AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 RC Pylon Racing/Hager Continued page 40 assisted callers inform pilot plane reaches far pylon safe turn Generally flag men posted far pylon signal planes abeam pylon Lap times order six seconds common Formula fastest event current National Record stands 105 10 laps over total 2 mile course length first aircraft cross finish line after 10 complete laps heat winner awarded four points second place finisher awarded three points third show finisher two points reason flier fails complete 10 laps he/she receives zero pilot fails fly around pylons receives what known cut penalized having fly extra lap second cut produces zero point score heat pilot given opportunity race five heats during contest pilot highest point accumulation event winner fliers matched heats using matrix rotation system avoid frequency conflicts Ideally pilot will race others possible during five rounds heat races determine final standing accumulated points Point ties resolved flyoff no frequency conflict exists fastest posted time conflict plane timed start race its individual finish order provide relative gauge speed heat another As previously noted times may used break ties frequently fast time trophy awarded lowest lapsed time recorded during contest actual operation pylon race much simpler practice described words What can racing offer challenge unsurpassed within sport model aviation Success Pylon Racing requires excellent piloting skills good equipment strong teamwork between pilot caller tremendous amount concentration required fly perfect 10-lap course Considerable effort must expended constructing fastest airplane extracting maximum engine propeller performance great quantity competitive urge mental discipline helpful also preceding statements ring bell perhaps RC Pylon Racing get started First attend race local area watch ask questions suggested volunteer official become familiar race Its Easy 1N13A SL Safety Starter Safe one-push starting Recommended John Prestons Safety Comes First column ModelAvation Nov 90 Easy assemble battery starter PATENT ENDING 1 FOAMAIRE 10 SPAN, oi3-75 CC POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER10 SPAN 19-e~ LPOWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKrr$1995KIT $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGCART 1 NEODESHA KS 66757 OF SAC KITS AND ACC 316325-282 1 FREE SHIPPING ON KIT ORDERSpion companyA ASTERCARD Add $700 packaging shipping UPS Texas renidents add 825% sales tax Allow approximately Iws weeks delivery October 1991 135 See ACE R/O dealer send check money order KRANKING Safety Starters RO Box 2563 Beaumont Texas 77704 Twin baking ZAP-A-DAP-A-GOOTM new purpose adhesive & sealant bonds virtually anything everything.better HOUSE OF BALSA 10101 Yucca Road Adelanto CA 92301 619- 246-6462 ROBART PO Box 1247 St Charles 1L60174 708-584-7616 FRANK TIANO ENTERPRISES 15300 Estancia Lane West Palm Beach FL 33414 407- 795-6600 operation before entering first contest Second join local racing group exchange ideas ask questions Beginners always welcome third build plane beginner oriented events such Quickie 500 Formula 500 Sport Pylon /2 Pylon enter first race Strive smooth consistent course lap record heat time work reducing times until winning events point probably hooked Pylon Racing may consider flying competitive Quarter Midget and/or Formula events whichever popular area What NMPRA National Miniature Pylon Racing Association special interest group composed RC Pylon Racing enthusiasts throughout US Canada Mexico organization dedicated promotion betterment RC Pylon Racing w ZAP registered trademark PACER TECHNOLOGY dates back 1965 first set Goodyear now Formula Racing rules proposed NMPRA works Academy Model Aeronautics formulate rules regulations governing flying radio controlled miniature pylon racers also organizes sponsors annual Championship Races both Quarter Midget Formula event classes addition NMPRA maintains accumulated point standings member flying events sanctioned contest awards trophy shirts Top Ten Formula District QM Champions NMPRA publishes monthly News Release disseminates racing information including race schedules race reports product reviews rule proposals technical discussions timely basis Selected classified advertisements also printed serve special needs pylon racer NMPRA annually elects officers EXTRA 30C Now available 2 sizes 1/5 Scale Span 68 700 sq lbs 1/4 Scale Span 80 Area 1040 sq Wt 14 lbs Now very attractive EXTRA 300 joins DALOTEL65O CAP 21 ZMPs group 01 61 -91 powered Sport ScaleAerobaticAircraft Like other2OAimost-Ready-to-Fly models Zimbabwe Model Products range Al Balsa Kits feature accurately framec fusalage plug-in sheeted wings tai feathers scale landing gear epoxy cowl cleai canopy illustrated building instructions For details call write ZIMPRO MARKKTIN4 1 PO BOX 5776 OAK RIDGE TN 371 PHONE 615-4e2-6188 popular ballot positions President Quarter Midget Executive Vice President well Regional Vice Presidents Associate Vice Presidents Formula Quarter Midget classes respectively seven regional districts US Canada Vice President Associate Vice President district officers serve constituents promoting Pylon Racing reporting district events maintaining point standings member addition Vice President recommends top 20% Formula point standees district qualify Annual Formula Championship Race Continued page 141 B&P Associates Gives Total Fiigbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FIRST RIO 6osIzEDnAwI IiAUI1 EXCELLENT ENTRY FOR NEW AMA SCALE CONTEST PERFECT LOW-WING TRAINER DELUXE KIT ALL BALSAJPLYWOOD CONSTRUCTION STATS Span 72 43 6 lbs Wing Area 767 aqIn gldg IS o 4-Channel 130 Pro-shaped Paris CT Ski BalssjPlywood Hdw r Decals spats Bent Gear Detailed Inslruotlona I plan r Photos ONLY $17995 $500 FOR ups Call Send Chock MO 1800-7322376AERO CLASSICS MFG CO M-cNiss Accepted Dorwen DrIve flows Re. Add 4%l a CIty IA 52246 136 Model Aviation ilK ANSWER PL*Nvao lISTII PLANE VIDEO Presents AEROB ATICS AND GROUND SCHOOL 105 minutes AERODYNAMICS AND STALL THEORY -plus HOW TO DO control inputs Proper takeOffsLoops rolls SpinsSnap rolls Proper landingsCrosswind techniques $1995 plus$3OO S/H lforeign-$60O S/HI -and BUlL DING IT RIGHT THE FIRST TIME 22 hour videotapes Wing constructionRadio Installation Fuselage constructionEngine setup Radio installationPushrods Fuel systemsCovering film Props spinnersAlignmentBalancing Shear webbingPLUS MUCH MOREl $3495 plus S/H lforeign-$8OO S/HI Plane Video PO Box 23128available 1u1S4Clive IA 50325JJ5 onlY IOWA residents add 4% sales tax M04 800383-8251ToLLFREEOR 515-223-0897 RC Pylon Racing/Hager Continued page 136 Presently no qualification requirements Quarter Midget Championship Race Membership open AMA members annual dues flying members US $2200 includes monthly News Release subscription embroidered patch decal set membership card An individual racing number area letter code assigned member may designate his/her racing aircraft accordingly Thank time interest RC Pylon Racing Buzz Words specialty closed language buzz words phrases quickly developed true RC Pylon Racing listed below glossary some common buzz words list far complete regional variations exist also Back-to-Back Heat situation pilot scheduled last heat round first heat next round Cut Judge course official tasked determining planes turn inside pylon receive cut Double-Cut A frequent cause zero point score pilot cuts two pylons succession Also termed cut out Freebie heat lone pilot scheduled due frequency conflicts and/or scratches other contestants Goose-Egg The dreaded zero point score may obtained infinite Grudge Race heat between two equally matched pilots long term rivalry Handicap Judging judging Formula aircraft scale fidelity workmanship appearance determine order take-off Lap Counter course official counts laps generally displays information pilot/caller via flip cards Accumulated cuts also displayed lap counter assigned pilot Matrix system matching pilots heat races radio frequency heat make-up rotated round round Racehorse Start starting procedure planes launched simultaneously Ready Box An area located outside safety zone pilots planes assembled heats Continued page 144 October 1991 141 WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 No324 SEND 50 FOR PRICE LIST AND CATALOG variety reasons NEW Florlo Flyers STUNT WAGON New Only $6995 WingSpan-50WingArea-7BBsqin.Length-405 Power-25 40 ci u Design Weight -3 4 lbs Features maple engine rails band-sawn parts formed music wire landing gear isolated exposed fuel tank compartment strong durable balsa construction throughout DesIgned flown computer radical RadIcal danlUn performance conventional conatructlon competition Fun Fly contender Ask Floria Flyer STUNT WAGON favorite hobby shop first direct orders add $4 S&H par kit Z Send free Floric Flyer catalog VISA ft MC accepted PA Residents add 6% sales faa Florlo Flyer Corp P0 Box 88 Dagus Mines PA 15831 814 885-8360 * CARBON FIBER/EPOXY SHEET 003 TO 056 THICK RED CUSTOM LAYUPS AVAILABLE *TUBES 11/8 AND 111410 THINWALL 82 X 30 X 40 TAIL600M *MAT 5 OZ ISO VO RANDOM FIBERS *TOW 160000 DRY FIBERS *YARN 01 00 2 TWISTED THREADS *ROD 07 TO 25 SOLiD AND HOLLOW *TOWLINE 30 50 60 LB YELLOW MONOFILAMENT 100 L BRAIDED KEVLAR *OTHER MODELING SUPPLIES SEND SASE FOR INFORMATION TO BRADLEY MODEL PRODUCTS 1337 PINE SAP CT ORLANDO FL 32825 407 277-9132 EVENINGS WINDOW FLANGE Price 4 ft $295 Three sizes availableAThe Fourmost Window Small - 150 inchFlange flexible black Medium 250u vinyl strip preformed Large 350make perfect flange As well securing window place Fourmost Window Flange provides realistic black outline inconvenience tape Fourmost Window Flange easy install rectangular well contoured windows just razor blade CA adhesive FOURMOST PRODUCTS 4040 24TH AVEFOREST GROVE OR 97116 RC Pylon Racing/Hager Continued page 141 fueling/defueling station located events using standard fuel mixture Safety Zone zone around pylon course no personnel permitted during conduct race distances different events prescribed AMA rule book Safety Inspection mandatory aircraft inspection check proper radio installation structural integrity Scatter Pylon distant pylon start-finish line Also termed No 1 pylon Starter The important course official flags start determines finish order heat starter also coordinates actions pylon course including safety Trick Any advantage real imagined derived special prop shape fuel old timer perfectly proportioned modeling Curtiss Robin 049 Engines -Channel RIC 41 Wingspan Electric Power Optional $2695 eu Very few full scale aircraft ideally suited IC r,odel flight appealing old Curtisa Robin born spruce linen age beautifully proportioned far rubber electric glow enginee Easy fun build trainer-libe performance Flyline Models Catalog hoe phone 703 273-0503 FLYLINE MODELS INC PO Son 2136 Fairfax VirginIa 22031 USA 503 357-2732 ingredient aircraft design engine rework etc Turkey Self explanatory Now heres Brian Richmond prop technology WAS ASKED discuss few ideas theories guesses about propeller technology wont bore everyone complicated formulas because dont know instead Ill discuss what has worked Formula event over years First foremost must choose good piece wood define good piece wood stiff straight grain reasonably balanced evenly pitched sounds perfect its hard find props much half inch out pitch far out balance put balancer hit hard will dent table situation will require much work sanding will weaken blade point resonation structural CANNONSOSi 581-5061 ftC SYSTEMS 2828 Cochran St SuIte 281 Shel Valley cA gsoes G-MARK 061 GLOW ENGINES SUPERB PRECISION EASYSTARTING ENGINES WITH TRUE R/C THROTTLE OPERATION RELIABLE LOSPEED IDLE WITH SMOOTH RPM TRANSITION TO HISPEED TOP END 061 H/C17500 RPM STO GLOW PLUG NOT FURNISHED COMPLETE WITH THROTTLE 14000 18000 RPM GLOW PLUGS NOT INCLUDED UCONTROL VERSION WITH STANDARD CARBI MUFFLERS ARE STANDARD WITH ALL ENGINES ADD $450 SHIPPING & HANDLING BROCHURE IN USA AND $300 FOREIGN ADD EQUIPMENT SALES TAX IN CA CASH PRICES SHOWN VISACARDS B%MORE 20% DEPOSIT ON COD failure Planes dont go fast blade Tools required consist good balancer sanding block 80 100 220 400 grit sandpaper single edge razor blade Prather pitch gauge borrow friend some Hot Stuff about 45 minutes cannot tell what prop begin requires experimentation part Some engines develop power torque low rpm others seem develop higher rpm Some range works best engine event can offer techniques have worked clean up prop once have determined above Lightest Pilots Available DARN GOOD AIRMEN Made USAFrom Jennies Jets Pilots Are Best Lifelike Latex Rubber Build As Sportsman Barnstormer Full Body Pilot Kit #2061/6 scale.$ 995 #2051/5 scale.1O95 #2041/4 scale.1195 #2031/3 scale.1795 Bust Pilot Kit #1081/8 scale.$695 L #1061/6 scale #105-1/5scale895 / #104-1/4 scale.. 995 #103-1/3 scale.1595contains pilot head hands #3081/8 jet695boots helmet cap goggles #3071/7 jet795toll templates easy instructions Some simple sewing required Easy Assemble Finish 144 Model Aviation 061 u/c $4650 catalog siooDA DESIGNS Ordering instructions en dealer tim 315 5483779135 East Main StreetOiroct orders add $100 P&H Nyrosidects add 7% tax FAX 315 5484099Phelps NY 14532 OOs OK First put prop pitch gauge check stations three through about nine compare blade other pitch dont care doesnt pitch out what advertised Its critical Remember propeller nothing resulting forward thrust does airfoil lower pressure top blade pitch tries provide healthy angle attack given rpm airspeed want Scat Cat have twisted wing dont want unevenly pitched props take single edge razor blade scrape back tip hub until prop perfectly flat stations should take few minutes Now unless youre ready try some trick top-secret stuff youre done back blades never quit though Depending rpm diameter tips blades can turning 400 500 mph Does jet airplane utilize flat-bottom airfoils speed Does Scat Cat have flat bottom wing Continued page 147 1ec 46r&1kOOI Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RO Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 1-OT SCTOflS JET R/CCWB lET PROPULSIOM TIlE IUAY 10 GO WORLDS BIGGEST SCALE PLANS & SOCUNENTATION SERVICE 7OOOOAi$5$SC Pj5, SThSL SCALE MODEL PLANS 100 PAGE CATALOG PLANS ENLARGINGnos MadisAn A. GrfsbDrD NC ASS {91NAAASAU October 1991 145 61b C WWII AIRCRAFT SCALE DRAWINGS & SPECIFICATION SHEETS ODeS 1200 lEASE 3 VIeS,105 CAtAlOg DEADN$EgARANGER FIBERGLASS RANGER FIBERGLASS co hes been Box 879 specielizisg EBANEOMES dEDign end moldingcampton NH fEAr Else eerospece ndsEy sinCe 199903223 H0 bby Horn hobby specialties MIDWAY MODEL CO Old Timer Kits A/C AND FF Hobby Horn discount prices MMC FULL KITS listed Full Kits Include cut parts plan strip sheet good wire window material Kits marked " have wire landIng gear pre-bent 1938 Flynn Quaker 846799 1936 P house 503596 Cabin 784952 rEster 5O3596 .i 1937 Quaker lash 674784 1940 Buzzard Bombshell 50 span kIt3596 1937 AIr Chief 613776 1940 New Ruler 74 1939 Thermic 100 Glider ICC SOWn bi timer 7472 Sailplane--modificatlofls shown A/C $8623 P & W MODEL SERVICE Old Timer kits FF R/O following discount p rice full kits full kits clude cut parts plan stick sheet wood wire windshield material 1935 Miss America 84$7556 1936 Buccaneer 84$6296 1937 Dallaire 108$7992 1936 ClIpper Mk 72$5596 1938 Kioud King 63$4448 1938 Powerhouse 84$5624 1938 Record Breaker 96$7304 1938 Trenton Terror 72$4280 1939 Korda Wake 44$2012 1939 Mercu 72$6128 1939 Zipper$5624 1940 Ranger 46$3355 1940 Sailplane 78$8900 1940 So Long 50$3188 1941 Brigidier 56$4279 1941 Super Quaker 78$7640 1941 Playboy Jr 54$3272 1941 Playboy Sr 78$5372 to00 a280 $2 pp/i St Class tree $ 01 $2000 adSrequested 1st order 82 Page 1991 CATALOGUE $3 00 $2001 $45 add b375 $4501 orn HobbH $7000 add $425 Ova15173 MO N STIA] $7000 add $500 Callfadd600%tax SenPO BOX 2212 MO VISAIMC # & Exp o WESTMINSTERCA 92684 checks ] Hours Mon-Fri 9AM 5PM Check allow up 30714 893-B3llPhone days clearance on714 895-6629 FAX does propeller accept lot drag run full length flat bottom blades could get rid drag would turn blade faster could use larger blade same rpm either way youll first down No 1 pylon Another trick have known try deals inner root section blade part moving through air very fast Some say root doesnt provide thrust just connects tips work true way make root section pull its own weight start about station six third way tip blade MEYS HI TECH HOBBY INC White Pond Rd Stormville NY 12582 Introduces caleAccurately Scaled R/C Aircraft Plus Full Line Hobby Shop Supplies 1/10 Scale A6 Intruder 1/16 Scale B-17 Electric Span 636 Length 655 Weight 91011 lbs Fiberglass Fuse Cores w/Molded Fiberglass Skins Precut Formers e Detacbable Wings Vacuformed Canopy Much Morel e Uses Dynomax Fan72 1090 Size Engine ftc Price350 Span 7775 Length 56 Can Converted Gas Fiberglass Fuse Cores w/Molded Ftberglass Skins Precut Farmers Vacuformed Cowlings Much Morel 4/05 Motors Intro Price425 Call 914 878-75239ani 3pm est 914 279-32l04pm 8pm est carefully work toward tip 100grit block Take little off leading edge fair amount off trailing edge being careful touch center blade approximately 30% back leading edge Compare blade other carefully Semi symmetrical fine just dont go too far Doing right takes lot practice get too frustrated simply take prop break half will feel lot better Usually takes two such sacrifices before have part mastered Picture glider wing attached high speed wing slow flight leading edge devices out flaps down would see some undercamber excellent source lift thrust slow speeds brother turned fastest Formula time country last year using prop undercambered root sections flat midsections semisymmetrical tips want try use finger 80 grit sandpaper Slowly undercamber root about way out deepest camber should about 30% back leading edge transition undercamber flat section semisymmetrical should very gradual Now hit entire back side prop 220 400 grit unscrew pitch gauge block hub hard part over top blades usually pretty good shape require minor clean up work sharpest leading trailing edge possible results lowest drag component reason full scale propellers wings razor sharp because foreign object damage problems Rocks pebbles runways would damage leading edges dont have problem usually sharpen leading edge block 100 grit paper thin sharpen trailing edge top block finish itup single edge razor blade again scraping tip toward hub trailing edges stock props have very blunt edge near hub SCRATCHBUILD 14 SCALE PLANS ePA shasta price CESSNA AG WAGON 1235 4 56000 CESSNA U206TU206 1O75 5 .$65O0 CESSNA 152 AERORA7 995 3 R PAWNEE[v32]Tioe 4 56o00 TRANSA VIA AIRTRUK 117-5 5 nS65O0 EDO FLOATS[v32]T58 2 ,S3900 EDO AMPHIB FLOATS 61 3 nS490O Add 40Z Surface Mail P & P VISA & MASTERCARD Welcome F SEND INZNEDS FOR COMPLETE LISTING OF ALL PLANS SOOIIS UCTS DEROICEs FREE WITH ALL ORSERD Weve got number 11 sizes 11 great colors pressure sensitive & water transfer S&ed $3 jct4wck 0 major decals ORTNEAST SCREEN ORAPItIC5 21 Ft5ttER AVE. EAST WNUMEWUUU MA ula2e TEL 413525411a FAX 4I3-625-779~ October 1991 147 Coming Soon. Electric -130 tric OV-1 GA Bronco r Etendard Dud Fan na A-37 Dud Fan NEW ZEALAND AERO PRODUCTS 34 WORD PARADE STIRLING POINT SLUFF NEW ZEALANO yourself time air FUEL WIZZARDTM Worlds Most Convenient Pumps Fills largest model fuel tanks inN Both FAST stroke ue 1 SOCondZ1 0 fuel safe glow gas Durable long life Ready use out box year warranty parts workmanship Thousands satisfied users See local dealer call Toll Free 1 800 5338543 Visa Mastercard accepted SWEEN Id Products ox 8300 nkato MN 56002 FUEL WIZZARD Model 2 #7602 $1850 Fuels defuels same fast rate Mounted gallon metal can legal gasoline very important clean up area Now lightly block sand entire top no humps previous steps checking prop balancer point final balancing final step cutting prop desired length shaping tips Theory seems indicate rpm ranges swept back oval tips work best cut blade now desired length slight swept back angle 60 70 0 block round back front corner next step feel very important tip round top blade down meet bottom blade using block carefully preserve airfoil done correctly trailing edge corner will get paper thin nearly fall off Now 220 grit hand sand tip top down smooth out corner will now fall off result angled back tip swept back leading edge slightly rounded trailing edge corner Now lightly sand entire blade 400 Seal hot stuff again sand 400 Youre done Whether just use basic clean up techniques experiment back blades I think will see difference Now really want go fast lets start racing Formula Florida again See races Thanks Brian See next month CL Aerobatics/McMilIan Continued page 41 conditions no question mind great plane destined THE AIRPLANE FACTORY INC 1880 PINEVIEW MANDEVILLE LA 70448 R/C Combat_________ h Resistant 48 wingspan 4A -Sibs Aluminum Landing Gas video 4 $ 6995post paid $1295 $8995 0-264-7840 Kombat 40 member quick buIlding extremely durable Armadillo serIes Made aluminum poiypropeiyne no foam can assembled engine mounted radio installed houri NothIng extra buyl provide 4 channel radio / 25-40 engine suppiy everything else great sports plane fully aerobatic bolt-on symmetrIcal wing pre-hinged pre-finished red blue orange yellow compared other almost ready fly designs take 10-12 hours longer complete Kombat 40 true winnerl ORDER YOURS TODAY Trainer Version available $7495 Sport Flying Flys houri get better work props etc still basically flying much same preflight settings very close couple days later flying session San Antonio again hot hot hot windy Nationals few weeks away time wind over trees bordering ramp area fly producing some occasional rolling balls turbulence made things fun Well flew flew trying see what worked wind thing noticed slight difference elevator alignment versus flaps realigned trim mistake worked point retrimming alignment flaps elevators got out whack went way other chasing tails putting up flight after flight 100 5-plus runway final mistake push plane through pattern wind gotten beyond safe limits combined turbulence temperature thermal activity Coming out second hour glass got airplane inverted pulled out inch too low wings gone result gear impacting surface basically its write-off Let discuss bad lesson first because still hurts lose best plane ever hands pilot error doubt Sure circumstances contributed wasnt anyone pushing prolonged flying session extreme heat clouded reactions judgment Im certain Also because conditions shouldnt have taken plane out car Either point could have caused crash together certain Bottom line guys dont push too hard return isnt youll wind up like looking old plane Nationals 148 Model Aviation FUEL WIZZARD #7601$850 FIts gallon fuel bottles 1 feet Life Time Fuel Tubing included T-Shirts $1 295pp