Free Flight DURA TION Bob Meuser THE RULES AMA Cargo event check em out theyre AMA rule book pretty simple Basically small-field event dont come smaller Using Cox 020 engine pair OlOs main idea see much gross weight can carry least 40 sec maximum 20-sec engine run wingspan restriction 48 Clearly arent going have problem keeping model sight Back March 1977 column presented sketch Roman Ramirezs record-breaking model carried three-flight-total 76 oz Somewhere along line upped 82 oz 1979according August 1980 columnhe stuck up 8342 oz might have lost track has meanwhile last September cpped totally ridiculous figure 10021 oz about two lb per flight Try local 020 models would scarcely get off ground let alone make flight times twice engine-run times An ultra-sophisticated model maybe winglets super computer-designed airfoil Nope same old square-tip turkey hes flying along good old NACA 6409 airfoil out Twenties Thirties simple model well-flown beats usual Tissue tips Taking note several items regard iog virtues various covering tissues have appeared column recent months Al Lidberg supplies following information 1 agree real Japanese tissue nice stuff HAA/ Pgc44 CYL /A1ej 7 0 2 4 6 i 0/z4F6z8 Ij 8 47 /h LAO 8A4 AA/ee-PAAT sv2e / 3/ 3233 34 35 36 II rACr 5 OA/ a7/CA/ i, b4EP7/C/-i / Z &5~ c26C ~7L Al ~V ~egs-- i~ h7e %//4Ar44ej 4P0 LAD - ee 77e-g A-IA 7eAL A44 e7c9A/47sqj/ eA/ 7 ~A4 94 4ACE% LEi-AL. 563 --/777f42S k7/C %&AZ Bob Dittmers steelyard scalemake under dollar wooden yardstick coat hanger some small plastic containers some BBs Capacity depends sliding weight 6 lb work theres workable alternative Art supply stores some hobby shops sell tissue artsy-craftsy projects such flowers etc stuff cheap lOg-15g per sheet comes about two dozen colors black included Ive used golden yellow red couple models covering tissue good results 'None stuff colorfast water needs use very line mist shrinking use atrbrush avoid large drops make big blot marks 'For black trim strips numbers tissue works great can stuck down thinner just like real tissue Ive also used khaki brown Sperry Messenger recently appeared MAN brown pretty terrible though has little resistance tears holesfar worse thing Ive ever used color just right Dont know color tissue seems have different qualities Some black brown have shine side like good tissue dont work well covering Some red yel low blue dull both sides yet work well Mike Stoy has won Indoor HL Glider event US FF Champs twice flights around 33 sec under 20-ft ceiling Note large model size tiny tail-teath ers until recently didnt know would work having never tried theml fi Ds4 FL4H7 47 AVV P47w A441/MOAI DURA7/A \ /\ / Ix 5A5 XI\ ______ K -O2 4t \- oa sq __________ C c 75/1552 TZeCi #3 • R 7W5 UV4/A1/T5CM4v55/U 8LM &I 5 FPPL/7Cl4AIP$ ________ ________ _______ _______ _______ inches Will Team Williams Unlimited Mulvihill model able beat Bob White Meuser claims drawn its rugged enough everyday contest use-but special-purpose design modelers using plane have own favorite prop designs 76 Model Aviation expensive tissue Anyhow black craft tissue good trim ming sounds lot practical dyeing own price dime per sheet fact its easy find make worth using New gas-power event New competition events come go Most die young after few tries some go decades within particular club some become perhaps detriment ficial AMA eventsOften goal increase interest Free Flight competition introducing events will appeal newcomers takes whole lot accomplish goal mere introduction new events sometimes new event helps tentative rules several new events being kicked around San Diego area SD Forty-Niner Gas I Class limited monoplanes 2 No dimension including engine D/T ap paratus exceed 48 inches 3 Minimum weight excluding fuel 172 ozs 490 gin 4 Powerplant must stock Cox single-bypass Testors reed valve engine 049-051 cu maximum displacement 5 No clockwork engine timers variablesurface geometry permitted 6 Fuse-type clockwork D/T timers allowed 7 CD furnish fuel nominal 15% nitro methane 8 120-second flight maximum CD may shorten lengthen according site environ ment 9 30-second flight minimum Unlimited tempts allowed complete two official flights 10 Minimum engine run 10 sec No maximum engine run II Fuel tank capacity may restricted addi tion BBs etc 12 Flight scoring will use formula Right Time sec x 100Official flight score Engine-run Time* *time nearest I/S sec 13 Highest score two official flights deter mines winner 14 15% bonus added total score unas sisted two-main-gear-wheel ROG launches 15 Mass launches settle tied scores Formula applies 16 Fuselage must contain theoretical box 2 X 3 x 7 Swiped Scale Staffel newsletter slightly doctored goal event encourage easilybuilt rugged inexpensive models rules seem accomplish However wonder about prohibition clockwork engine timers Tomy timers can made inexpensively Presumably formula takes care degree Flight time seconds vague nearest whole second drop fractions round down Furthermore impos sible measure engine run nearest I/S second mechanical stopwatch needle doesnt snap over until 1/5-second has passed digital stopwatch could give different result could important dividing engine-run time Human errors inevitable timing engine runs will drastically affect scores Clearly way win 120-sec max whatever CD sets going tum out require ROG takeoff slicing engine run close possible 10-sec minimum So guy has time money develop good non-clockwork engine timer has built-in advantage scarcely line what seem May 1983 77 Nifty Old-Timer Rubber model Pacific Ace Sherman Gillespie kit sold 25* 1938 once again available CPM Products 722 Lennox Yreka CA 96097 $495 plus Si post Continued page 175 Dale Mateer Dayton OH logged 10 maxes Class Cox 15-pow ered French Wren got him 3rd place Central Indiana Aero modelers meet last fall Harry Murphy photo Doc Anderson fiberglass prop used Dick Smiths K&B-powered Satellite 788 beautiful pale blue color also has zero pitch tips designed increase pitch rpm model speed increase Excep tional performance claimed Harry Murphy photo check model alignment Support model indicated center gravity does balance properly shift equipment add ballast necessary Pick nice calm evening join quiet revolution Youll find Re-Volters flight characteristics slow gentle get trouble model will recover its owngiven enough altitude release control sticks makes acceptable landings unassisted adequate room Run silent run high FF Duration/Meuser Continued page 77 goals Nit-picking perhaps rules ever bad have way becoming cast concrete therefore awfully hard change Send SASE three-page list lay long trip merely illustrate good rules difficult designand probably have found frac tion loopholes However basic structure event seems have lot merit will interesting see what comes Unlim-Mulvi again January issue dis cussed annual event held Taft over Memorial Day weekend US FF Champs mentioning Loren Williams co conspirators hot after Bob Whites tailfeathers him being perennial winner crazy event promised Id have details Team Williams approach soon soon takes around call attention rules event published October 1982 column Crazy event . flight dawn maximum duration flight Pure Free Flight its best dont come no crazier So heres three-view Ive crammed detail could onto few square inches available leaves lot untold wamed machine timid weak designed purpose take Oakland Cloud Dusters perpetual trophy away Bob White contest-after-contest Mulvihill events machine although wood sizes increased next larger commercially-available sizes wood stout heart used critical members such spars longerons design would least good others such purposes n example tuselage weighing mere 10 grams uncovered must cope pent-up emotions some seven times its own weight impetuous unpredictable Pirelli rubber having potential en ergy capable lifting itself height upwards 3200 feet present Team Williams consists Loren Williams himself Andy Faykun Dick Siefried Mike Mulligan Mik Mikelson things ex-Indoor World Champ Bud Romak Total weight models using tissue covering peddled Oldtimer Models will 70 grams less Motors consisting 20 22 strands /8-inch Pirelli equivalent lot slack will weigh less 70 grams favoring low sinking speed resulting minimum overall weight Props three-view carefully avoids issue up grabs everyone doing own thing present Larabee Schwartzbach whatever Book reviews regurgitated February column talked about Bob Stalicks book air foils stated two bucks coordinates 45 airfoils biggest boggin town reader Californias northemmost county egon close California-Seattle boundary wrote inform about 60 short fact book contains 105 airfoils makes betta boggin mere $250 including postage gets Write Stalick 5066 Picadilly Circle Albany OR 97321 Making inexpensive weighing scale start two-bit wooden yardstick couple coat hangers paper clips snap-top plastic containers Twenty minutes later end up scale equal costing upwards 50 bucks bad fringe benefit doesnt take up workbench space flip side ol lady might appreciate screw eye dining room ceiling generic name such things cared steelyard inde pendent material made made wood nor properly termed woodyard following material article Bob Dittmer appeared SAM Speaks times have wished scale could use weigh new gas job plans simple easy-to-make beam balance accurate could ask materials required yardstick buckshot required coat hanger large paper clip two snap-top plastic containers I-in dia x 2-in long 2-in dia x 2-in Best Custom Screen Sportswear _______Our Latest_______ Design rxor 7ACU2E Servo8RivD Failure. 47 Glitched s. out oj 309 s.d trrr Tao Cain - Power ZJ 7~j9 Lines O Leo0 NWres ENGINE OVEINESiEi coo Ciii disoriented TOO MUCH BEER iust some avaition designs available top quality line sportswear designs direct printno heat transferl Gee See. P40 Warhawks. Fokker D Vii. P38. Christen Eagle. Pitis Special bria AT-S. P47. Steerman. Curtis Jenny. Corsair. its flat doesnt move can print favorite design dont see what want call write Coaches shirts$1295 Jackets$2195 Ladies tops$995 Shorts-$595 Saseball shirtsS895 SweatshirosS1195 Football iersevsS895 TShirts$695 Wide choice colors sizesl Send SASE illustrated brochure Name Address CityStateZip DesignSize Color MD residents add 5% tax now accept Master CardlVisa TO ORDER Send check money order ladd 10% postagelhandlingi OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct Upper Marlboro MD 20772 130116275118 May1983 175 N 8RYPCECN Y HOLD TI-IE BOX FOP ME WHILE GET MY BINOCuLPPS NT 5EE THE PLRNL PNYMORE 1131 NW 45 SIreel Ft Lauderdale FL 33309 13051 491-6115 ENGINEERING THE LANDING GEAR PEOPLE Tired kil landieg Heart dont lit feer biggie properif 0 & 0 Eaglneerieg can tale feur preblemsi * Custom bailt needs & specs guaranteed le Ill * Otnig & durable 10 withstand toughest landing * 0 & 0 Engineering gear will wtrk & keep biggie flying * In stock replaceetest gear let popular models Byrne Pills Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawnee Eagle Nesee Big Slick Champ Citabrta B & II models Snapper Stinger Snapper Ten FEATURES o completely assembled connector choice o factory fresh cells built specifications SAFT AMERICA 0 vibration proof construction int weld between cells o hi-rate charge capability charge 480 mil rate continuous cell damage o each pack completely cycled prior shipment o available flat square stick configuration unique battery compartments weight/balance considerations o extra long leads available special applications o custom designs dual airborne back-up systems o hi-rate UL approved charger available-charge rate 120 mil o individual cells solder tabs 12 14 20 Ah capacities o 1200 1400 airborne packs weigh 72 oz complete 0 2000 airborne packs weigh 115 oz complete 4 6 cell 12 14 Ah race car electric boat packs 54 Qr m 1200& 14002000 // See Local Hobby Shop Dealer first Lakes Radio Control Inc Southamptom z Livonia MI 48152 E MFGRS& DISTRIBuTORS QUALITY RIC PRODUCTS & COMPONENTS SEND $100 FOR COMPLETE CATALOG OF ALL BATTERY SYSTEMS AND OTHER PRODUCTS AVAILABLE FROM GLR/C REFUNDABLE ON FIRST ORDER 9 Hoiy H Wng Span--Sal Wing Area--569 Sq SENSOAR glider HOBBY HORN Eaclusive HOBBY HORN Kit SENSOAR Glide- kit high quality kit Maohne cut S sanded parts Select qualrty balsa spruce Oetailed plans written instructIons THERMAL SLOPE 05 ELECTRIC POWER VALUE PRICED 51500 E OLD I7R tOflO bull axi Partial Kits P & W Semi-Kits Combined full atripwood plan Now mci Wire Window etc Mat Note may purchased just aemi hits pIanowrite catt priceo 1936 Bueeaneer84Stl 1938 Clipper MK 172-$3t 1937 Oatlaare Sptser1t8$61 194t Sanger4t $27 1939 Meroory72$t6 1931 Miss Amerieoi4$59 1941 Playboy Jr54-$29 1941 Ptoyboy SrBt$4t 1938 Power House94-143 1940 Saiiptaoe-78-- $74 1940 Long-tt-$29 1938 Trenton Terror-72$32 1939 Zipper54-$48 1939 Kordo Wakefield-44- $17 MIO4IAP MODEL CD lemi-Isito Combined in/strip 1936 Plying Qsiolser94$49 1$37QuokerPlash-07$39 1937 Long Cabin78542 1937 Air Chief61945 STRUCKS 1940 70 Span 035 Sq SEMI-KIT Plan lncl-$33S0 NUW UIUI Combo Pull Kit $6300 SCALE LAN5 nd ORAWINGS SSt HEINKEL HE 1000 02 01s $1000 SHIPPINO AND HANOLINO 34 Page CATALOGUE Up $800 add $150 $200 PP/tot Class $801 $200t add $225 copy will sent $2001 $4500 odd $3t0 free-when requested $45tt $7tt0 odd $350 order over $70tt wdd $490 BBY HORN CA Addressees Odd 0% tOOt by specialties00 Send 510 VisafMC0*Exp15173 Moran Streel [At Cheek allow up 30 Bow 2212 days check clearanceWestminster Ca 92683 COOEsact Charges 710 t938311 Hdl tCash OnlyltAll UPS 710 8951203 long 'Construethon starts ssith drilling Iwo /o-iO dia holes yardstick Bend Ceiling hanger load hook hanger wire Form sliding-weieht hottk large paper clip use some coat hanger wire plastic contaIners used hold shot weight can drill 332-in dja hole through slip wire right through balance com pensator hitok must just balance weight beam lllt/itIlll slidine balance installed balanee weieht its hook mull weigh exactly pound have need weigh ships over 515 ptunds make-up two-pound balance weight assembls beam balance will weigh up twelve pounds As illustrated scale weighs n3aximum LIf six lb. 1/16-in representing fifth stz probably isnt accurate because fric tion pivots such accuracy would re quire hole spacing accurate about 0012 youll settle something like half-oc accuracy plenty good model three- six-lb range should no problem sensitivity can creased expense maximum weight decreasing size sliding balance weight half-oz weight place one-oc weight gives / ois. lOin lb capacity three lb suppose could really get carried away use aluminum yardstick perhaps sharpen parts coathanger hooks go through drilled holesbut much perfection really need About bloody props response lead item January issue concerning gen tlemanly art whittling Ken Simpson Cedar burg WI sends following suggestion 176 Model Aviation better solution using adhesive tape buy rubber finger kind used sorting papers come various sizes avail able office supply stores Get snug enough stay loose enough have some move ment slight amount play allows rubber slip knife blade hits rubber fingerdont get cut recently ran article about backwoodsy guy whittles lot wooden spoons photo him stripped waist whittling away knife directed straight toward bare belly hell bent hara-kiri trip trick arms locked hard against sides whennot ifthe blade slipped wouldnt sail forth far enough cive him unscheduled belly button worse Controllable supernormal flight following based material appeared article Automotive Engineering December 1982 turn based Society Automotive Engi neers paper 821469 Flight Supernormal Atti tudes Thomas H Strom William Alford Jr Dynamic Engineering Inc DEl Thanks Joseph Ziomek calling article MAs attention Can imagine DT-ing full-size Boeing 747 ll thats almost what guys talking about readers familiar modern competition Free Flight DT stands dethermalize various endings -er -ing etc refers way get models down quickly safely instead losing theyd rather continuing upward rapidly rising thermal bubble hot air usually employing fuse timer-operated device allow trailing edge horizontal stabilizer pop-up high negative angle Conlinuedonpazge 180 rjyjp mi mirmrrntrrri 12001400 & 2000 MIL GIANT SCALE NICAD AMoam Pad ALai&ZLte (FULL*SIZE*PLANS 405 Regent Queen Skies$1350 RC Big sport biplane trainer fun Uses 40 60 power 4-ch RO Two sheets No 406Piper Comanche$825 CL Sport Scale uses twin 25s throttle control two shts No 407Boeing XF5B-1$425 RC Sport Scale /2A power 2 3-ch RC No 408Re-Volt-Er$650 RO Electric-power sport flier 2-ch RC 05 motor Gee Bee Model Y 40-powered AC stand-off scale ooe great old-rime racers Stilletto CL Slant model McDonald wInner 197619801982 FAt World Champs$275 Ole Reliable RC 70 version 36 old-timer REM cOntrols 19-25$425 Bloc Birds AC Ken Willards formation platte 4-oh 10$275 Crasirmaster CL Crash-proof trainer 2 sioesf 5-30 39-40$125 Gee Bee AC Granger Williams magrrificenf Model Z 40 engine$750 Cap 29 40-powered scale RC French aerobattc plane Low wing tail-dragger 2 sheets$750 Gee Bee Sr Sportster AC t/dscale Hatfhe 91 power Prototype spas 30 9 2t3sheets51175 MinI F16 AC Sarpolas 049 dacted fan sport flier 2-ch Balsa wings tail fuse structore$275 Pegasos AC Watsons giant onper sailplane featores flaps spoilers T-tail lOS wingspan5875 1930 Fleet Biplane AC Sport Scale 35 dO 4-cS Wingspan 56 1 6 scale Two sheets $825 Drake II AC Ken Willards flying boat 3-oh. 15-power Fly land wifh removable gear $375 Taylor Cob AC Don Stalls Schoolyard-Scale Odgs 2-3 CS Spans 55 iv350 Zephyr AC Small 2-oh glider hand-launch tow thermal slope soarng$200 Wasp VI PP Mike Stays Nato-winning Outdoor HLG$100 Onestep AC Trainer has onry forgiving Ifying guatifies 3-cS 10- 25 power$429 Merlyn AC Giant 155-in span Sailplane arms AC channels$750 Made Loner Rocket AC t/a-Scale spans 929 h-ce flaps 1 2 cv iv engine 8 Pieces FF Indoor bash B Robber-power confeot-winver W Sian Gorder$100 Sopercat AC Hafl-A Pylon Racer sport fIle Aileron elevator cvnf rot Foam wng$250 Seawaster AC Willards 40-size flying hoaf 4-cs Strap-sn gear landplane 2 shls $1199 Space ShoBle II AC Larger improved version 01 Hue 3lider 3-cS$550 CAP21 AC Giant-Soale 01 French aerohalic cras spans 71/4 5 Ouartra power 2 sheets r doc$1499 Strato-Streak AC Old-Timer versivo Garamis famous dl PP design 3A power 2-cs$500 Neighelon AC Low-wing fri-gear sportoter power 4-cs $500 Marissa PP Rubber-powered sportster Golden Age tradition$298 Snapahop Twin AC Workhorse utilitysport ship twin 35-45 4-5 ch Foam wings iSo 12 lbs 2 ohIo$1199 Aoroeoa AC SportlAerobalic flier 5d9-f 0 -power ases 2 3 ch$350 Wiegmaster CL Sport-Stunter t3A Profile fuselage sheet wings in-flaps$200 Mr Spook Ill AC Fly Sport Pylon Nov Sportsman Paoern sheet s 0 Uses 4-cs 25- 45 pwr$500 Monoboote SpA CL t2A Combat ship large ligst saper pedormer$275 Witch Hawk 500 FF Hot Class AB Gas compofifion ship 15-23 power Nats-arneleg desgn$375 Nany Flier PP Rubber-power sports flier captains Golden Age flavor Spans 26 rn$300 Callisto 92 AC Fly sleek Nats-wineing Sailplane rn AMA Mod Sf4 Unlimiled classes$750 Similar fliP AC boans famous design retains 50-so Pattern plune Retracts foam wing$550 Laser 200 AC Sport Scala replica championship Aerobatic flier Uses 40 power 4-h ch 2 shro$1075 Coach Mate PP CaIn low-wing sporloter CO-2 powem spans 3517 in$225 US Male AC Hage gentle-flying biplane trainer sport Spana 80 hO engine 3-cs Two ohIo$1450 LII Onickle CL Nats-wineing Scale Racer HOT 15 power$325 Orange Boa AC Lighlweight slope soarer gentle winds hand low Uses 2 AC channels$500 Cttlstopher AC Sport Scale paracsatistl Two-oh set hides torso moves arms sleet chute$425 Klood King AC Reduced modernized version 011938 design Old-Timer 2 3 ch$498 Rain Crow II PP High-pedormance Outdoor Hand Launched Glider 5 Sky Beby CL Racer Mouse Scale Plans show Coo Black Widow Spans 1 g3a in. V-tail$175 Lee-Richards PP blectric-powemed 020 Scale ring-wing Oldie$298 Bell YFM-1 Airacoda CL Sport Scale profile twiv pusher reed-valve 049s$225 Gee Bee R-1 AC HaSkes latest t/a-scale spans 75 in. weighs 15 IS flies 90 larger Four shIn no400$2225 Zephyr 1100 AC AMA Class B Sailplace 3-channel AC gear $675 Mi di-Slow CL Rat-Race-style Stunf trainer 30-power Profile$599 Royal Lancer PP Basic competition model AMA Class uses otandard-pedormance 1 5 engines$550 Ape PP Jumbo Rubber Scale Armstrong-Whilmvrth research biplane mid-Twenties$475 Cob Floatplane AC Sport Scale 049-t 0-size engines d-ch AC J-3 floats isa classic9950 Focke-Walt 199 CL Profile Scale power features unigae engine moont realism$200 3U~~ Circlenumbers plans wish toorder I 131193225239262282291299302307 310314326332343348354356358362 365368370371372374375376377378 I 379380382383385386388389390391 I I392393394395396397398399400401 I402403404405406407408 Please pnnt carefullyEnclosed $______ I_____ _____ _____ NAME __- _____________ ____ ___I STREET ________ ________ ________ ____ H __________ ____ _______ ___ __ U Ja______ -- _ -PrICe includes first-class postage Send check money order payable Model Aviation AMA 1810 Samuel Morse Dr Reaton VA 22090 attack causing aircraft go violent stall settle gently ground its fuselage remaining horizontal attitude wing course ts completely stalled tail surfaces hence controllable aspect Supernormal name authors have given flight fully-stalled wing Researchers Dynamic Engineering Inc giving serious consideration application supernormal flight SNF full-size aircraft An all-moving tail something close essential feature authors mention passive DT use rightly crediting Carl Goldberg mention having done free flight tests guess notion DT-ing real airplane clear ground isnt too far out wing loading low enough limit rate descent value landing gear human body can absorband alternative crash certain death perhaps 9999% survival probability isnt essential DT-ing way ground zero power mony applications SNF have considered Consider plane accidentally stalls low altitude conventional aircraft crash absolute certainty pilot could hit panic button would DT tail apply full power conceivably magnitude crash could substantially reducedperhaps near zeroand probability survival increasedperhaps nearly 100% Recall during descent tail surfaces would stalled Out pilot would have some degree control Perhaps specially-designed de vices could employed slow descent rate lower provided conventional wing deep stall Recovery spins NASA has demonstrated SNE controls effective spin recovery lightly-loaded general aviation aircraft nor nial spin characteristics spin recovery using SNF controls has demonstrated also heavily-loaded models fighter aircraft normally have flat fast-spinning characteristics make recovery very difficult use conventional control techniques SNF controls might used fuel-usage reduction during early phases landing V/STOL aircraft During final landing phases normal vectored thrust would applied authors have paid particular attention applications lightweight fighter LWF air craft Some applications SNF studied include sudden deceleration causing attacking aircraft overshoot sudden turns SNF condition tnoderate speeds enhanced aiming pointing weapons low speeds authors also mention SNF controls could allow certain aircraft fly nose up out loss altitude very low forward speed dont recall certain WW fighters could moping along under full power perhaps 15 mph low-speed engines big props giving good thrust low speeds doesnt seem impossible Can someone clue Well anyhow sort seems like something someone should taking good hard look its good know DEl doing Hope dont run out mieney Tip month Bob Womack observes next time have apply rubber lube motor put rubber sandwich bag poly ethylene paper put required amount lube close bag rub bag between hands presto ly lubed motor no sticky greasy palms Im sorry dont know print-source item Rob Meuser 420) Greof-v St Ooklorld CA 95619 180 Model Aviation No 131 No 193 No 225 No 239 No 262 No 282 No 291 No 299 No 302 No 307 No 310 No 314 No 326 No 332 No 343 No 249 No 354 No 356 No 358 No 362 No 365 No399 No 370 No 371 No 372 No 374 No 375 No 376 No 377 No 378 No 379 No 380 No 392 No 293 No 385 No 386 No 388 No 389 No 390 No 391 No362 No 393 No 394 No399 No399 No 397 No 399 No 399 No 400 No491 No 402 No 493 No 404 D c\ Ca CC C aol 100 aol C to-C C c54 olE am Eg CC C
Edition: Model Aviation - 1983/05
Page Numbers: 76, 77, 175, 176, 180
Free Flight DURA TION Bob Meuser THE RULES AMA Cargo event check em out theyre AMA rule book pretty simple Basically small-field event dont come smaller Using Cox 020 engine pair OlOs main idea see much gross weight can carry least 40 sec maximum 20-sec engine run wingspan restriction 48 Clearly arent going have problem keeping model sight Back March 1977 column presented sketch Roman Ramirezs record-breaking model carried three-flight-total 76 oz Somewhere along line upped 82 oz 1979according August 1980 columnhe stuck up 8342 oz might have lost track has meanwhile last September cpped totally ridiculous figure 10021 oz about two lb per flight Try local 020 models would scarcely get off ground let alone make flight times twice engine-run times An ultra-sophisticated model maybe winglets super computer-designed airfoil Nope same old square-tip turkey hes flying along good old NACA 6409 airfoil out Twenties Thirties simple model well-flown beats usual Tissue tips Taking note several items regard iog virtues various covering tissues have appeared column recent months Al Lidberg supplies following information 1 agree real Japanese tissue nice stuff HAA/ Pgc44 CYL /A1ej 7 0 2 4 6 i 0/z4F6z8 Ij 8 47 /h LAO 8A4 AA/ee-PAAT sv2e / 3/ 3233 34 35 36 II rACr 5 OA/ a7/CA/ i, b4EP7/C/-i / Z &5~ c26C ~7L Al ~V ~egs-- i~ h7e %//4Ar44ej 4P0 LAD - ee 77e-g A-IA 7eAL A44 e7c9A/47sqj/ eA/ 7 ~A4 94 4ACE% LEi-AL. 563 --/777f42S k7/C %&AZ Bob Dittmers steelyard scalemake under dollar wooden yardstick coat hanger some small plastic containers some BBs Capacity depends sliding weight 6 lb work theres workable alternative Art supply stores some hobby shops sell tissue artsy-craftsy projects such flowers etc stuff cheap lOg-15g per sheet comes about two dozen colors black included Ive used golden yellow red couple models covering tissue good results 'None stuff colorfast water needs use very line mist shrinking use atrbrush avoid large drops make big blot marks 'For black trim strips numbers tissue works great can stuck down thinner just like real tissue Ive also used khaki brown Sperry Messenger recently appeared MAN brown pretty terrible though has little resistance tears holesfar worse thing Ive ever used color just right Dont know color tissue seems have different qualities Some black brown have shine side like good tissue dont work well covering Some red yel low blue dull both sides yet work well Mike Stoy has won Indoor HL Glider event US FF Champs twice flights around 33 sec under 20-ft ceiling Note large model size tiny tail-teath ers until recently didnt know would work having never tried theml fi Ds4 FL4H7 47 AVV P47w A441/MOAI DURA7/A \ /\ / Ix 5A5 XI\ ______ K -O2 4t \- oa sq __________ C c 75/1552 TZeCi #3 • R 7W5 UV4/A1/T5CM4v55/U 8LM &I 5 FPPL/7Cl4AIP$ ________ ________ _______ _______ _______ inches Will Team Williams Unlimited Mulvihill model able beat Bob White Meuser claims drawn its rugged enough everyday contest use-but special-purpose design modelers using plane have own favorite prop designs 76 Model Aviation expensive tissue Anyhow black craft tissue good trim ming sounds lot practical dyeing own price dime per sheet fact its easy find make worth using New gas-power event New competition events come go Most die young after few tries some go decades within particular club some become perhaps detriment ficial AMA eventsOften goal increase interest Free Flight competition introducing events will appeal newcomers takes whole lot accomplish goal mere introduction new events sometimes new event helps tentative rules several new events being kicked around San Diego area SD Forty-Niner Gas I Class limited monoplanes 2 No dimension including engine D/T ap paratus exceed 48 inches 3 Minimum weight excluding fuel 172 ozs 490 gin 4 Powerplant must stock Cox single-bypass Testors reed valve engine 049-051 cu maximum displacement 5 No clockwork engine timers variablesurface geometry permitted 6 Fuse-type clockwork D/T timers allowed 7 CD furnish fuel nominal 15% nitro methane 8 120-second flight maximum CD may shorten lengthen according site environ ment 9 30-second flight minimum Unlimited tempts allowed complete two official flights 10 Minimum engine run 10 sec No maximum engine run II Fuel tank capacity may restricted addi tion BBs etc 12 Flight scoring will use formula Right Time sec x 100Official flight score Engine-run Time* *time nearest I/S sec 13 Highest score two official flights deter mines winner 14 15% bonus added total score unas sisted two-main-gear-wheel ROG launches 15 Mass launches settle tied scores Formula applies 16 Fuselage must contain theoretical box 2 X 3 x 7 Swiped Scale Staffel newsletter slightly doctored goal event encourage easilybuilt rugged inexpensive models rules seem accomplish However wonder about prohibition clockwork engine timers Tomy timers can made inexpensively Presumably formula takes care degree Flight time seconds vague nearest whole second drop fractions round down Furthermore impos sible measure engine run nearest I/S second mechanical stopwatch needle doesnt snap over until 1/5-second has passed digital stopwatch could give different result could important dividing engine-run time Human errors inevitable timing engine runs will drastically affect scores Clearly way win 120-sec max whatever CD sets going tum out require ROG takeoff slicing engine run close possible 10-sec minimum So guy has time money develop good non-clockwork engine timer has built-in advantage scarcely line what seem May 1983 77 Nifty Old-Timer Rubber model Pacific Ace Sherman Gillespie kit sold 25* 1938 once again available CPM Products 722 Lennox Yreka CA 96097 $495 plus Si post Continued page 175 Dale Mateer Dayton OH logged 10 maxes Class Cox 15-pow ered French Wren got him 3rd place Central Indiana Aero modelers meet last fall Harry Murphy photo Doc Anderson fiberglass prop used Dick Smiths K&B-powered Satellite 788 beautiful pale blue color also has zero pitch tips designed increase pitch rpm model speed increase Excep tional performance claimed Harry Murphy photo check model alignment Support model indicated center gravity does balance properly shift equipment add ballast necessary Pick nice calm evening join quiet revolution Youll find Re-Volters flight characteristics slow gentle get trouble model will recover its owngiven enough altitude release control sticks makes acceptable landings unassisted adequate room Run silent run high FF Duration/Meuser Continued page 77 goals Nit-picking perhaps rules ever bad have way becoming cast concrete therefore awfully hard change Send SASE three-page list lay long trip merely illustrate good rules difficult designand probably have found frac tion loopholes However basic structure event seems have lot merit will interesting see what comes Unlim-Mulvi again January issue dis cussed annual event held Taft over Memorial Day weekend US FF Champs mentioning Loren Williams co conspirators hot after Bob Whites tailfeathers him being perennial winner crazy event promised Id have details Team Williams approach soon soon takes around call attention rules event published October 1982 column Crazy event . flight dawn maximum duration flight Pure Free Flight its best dont come no crazier So heres three-view Ive crammed detail could onto few square inches available leaves lot untold wamed machine timid weak designed purpose take Oakland Cloud Dusters perpetual trophy away Bob White contest-after-contest Mulvihill events machine although wood sizes increased next larger commercially-available sizes wood stout heart used critical members such spars longerons design would least good others such purposes n example tuselage weighing mere 10 grams uncovered must cope pent-up emotions some seven times its own weight impetuous unpredictable Pirelli rubber having potential en ergy capable lifting itself height upwards 3200 feet present Team Williams consists Loren Williams himself Andy Faykun Dick Siefried Mike Mulligan Mik Mikelson things ex-Indoor World Champ Bud Romak Total weight models using tissue covering peddled Oldtimer Models will 70 grams less Motors consisting 20 22 strands /8-inch Pirelli equivalent lot slack will weigh less 70 grams favoring low sinking speed resulting minimum overall weight Props three-view carefully avoids issue up grabs everyone doing own thing present Larabee Schwartzbach whatever Book reviews regurgitated February column talked about Bob Stalicks book air foils stated two bucks coordinates 45 airfoils biggest boggin town reader Californias northemmost county egon close California-Seattle boundary wrote inform about 60 short fact book contains 105 airfoils makes betta boggin mere $250 including postage gets Write Stalick 5066 Picadilly Circle Albany OR 97321 Making inexpensive weighing scale start two-bit wooden yardstick couple coat hangers paper clips snap-top plastic containers Twenty minutes later end up scale equal costing upwards 50 bucks bad fringe benefit doesnt take up workbench space flip side ol lady might appreciate screw eye dining room ceiling generic name such things cared steelyard inde pendent material made made wood nor properly termed woodyard following material article Bob Dittmer appeared SAM Speaks times have wished scale could use weigh new gas job plans simple easy-to-make beam balance accurate could ask materials required yardstick buckshot required coat hanger large paper clip two snap-top plastic containers I-in dia x 2-in long 2-in dia x 2-in Best Custom Screen Sportswear _______Our Latest_______ Design rxor 7ACU2E Servo8RivD Failure. 47 Glitched s. out oj 309 s.d trrr Tao Cain - Power ZJ 7~j9 Lines O Leo0 NWres ENGINE OVEINESiEi coo Ciii disoriented TOO MUCH BEER iust some avaition designs available top quality line sportswear designs direct printno heat transferl Gee See. P40 Warhawks. Fokker D Vii. P38. Christen Eagle. Pitis Special bria AT-S. P47. Steerman. Curtis Jenny. Corsair. its flat doesnt move can print favorite design dont see what want call write Coaches shirts$1295 Jackets$2195 Ladies tops$995 Shorts-$595 Saseball shirtsS895 SweatshirosS1195 Football iersevsS895 TShirts$695 Wide choice colors sizesl Send SASE illustrated brochure Name Address CityStateZip DesignSize Color MD residents add 5% tax now accept Master CardlVisa TO ORDER Send check money order ladd 10% postagelhandlingi OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct Upper Marlboro MD 20772 130116275118 May1983 175 N 8RYPCECN Y HOLD TI-IE BOX FOP ME WHILE GET MY BINOCuLPPS NT 5EE THE PLRNL PNYMORE 1131 NW 45 SIreel Ft Lauderdale FL 33309 13051 491-6115 ENGINEERING THE LANDING GEAR PEOPLE Tired kil landieg Heart dont lit feer biggie properif 0 & 0 Eaglneerieg can tale feur preblemsi * Custom bailt needs & specs guaranteed le Ill * Otnig & durable 10 withstand toughest landing * 0 & 0 Engineering gear will wtrk & keep biggie flying * In stock replaceetest gear let popular models Byrne Pills Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawnee Eagle Nesee Big Slick Champ Citabrta B & II models Snapper Stinger Snapper Ten FEATURES o completely assembled connector choice o factory fresh cells built specifications SAFT AMERICA 0 vibration proof construction int weld between cells o hi-rate charge capability charge 480 mil rate continuous cell damage o each pack completely cycled prior shipment o available flat square stick configuration unique battery compartments weight/balance considerations o extra long leads available special applications o custom designs dual airborne back-up systems o hi-rate UL approved charger available-charge rate 120 mil o individual cells solder tabs 12 14 20 Ah capacities o 1200 1400 airborne packs weigh 72 oz complete 0 2000 airborne packs weigh 115 oz complete 4 6 cell 12 14 Ah race car electric boat packs 54 Qr m 1200& 14002000 // See Local Hobby Shop Dealer first Lakes Radio Control Inc Southamptom z Livonia MI 48152 E MFGRS& DISTRIBuTORS QUALITY RIC PRODUCTS & COMPONENTS SEND $100 FOR COMPLETE CATALOG OF ALL BATTERY SYSTEMS AND OTHER PRODUCTS AVAILABLE FROM GLR/C REFUNDABLE ON FIRST ORDER 9 Hoiy H Wng Span--Sal Wing Area--569 Sq SENSOAR glider HOBBY HORN Eaclusive HOBBY HORN Kit SENSOAR Glide- kit high quality kit Maohne cut S sanded parts Select qualrty balsa spruce Oetailed plans written instructIons THERMAL SLOPE 05 ELECTRIC POWER VALUE PRICED 51500 E OLD I7R tOflO bull axi Partial Kits P & W Semi-Kits Combined full atripwood plan Now mci Wire Window etc Mat Note may purchased just aemi hits pIanowrite catt priceo 1936 Bueeaneer84Stl 1938 Clipper MK 172-$3t 1937 Oatlaare Sptser1t8$61 194t Sanger4t $27 1939 Meroory72$t6 1931 Miss Amerieoi4$59 1941 Playboy Jr54-$29 1941 Ptoyboy SrBt$4t 1938 Power House94-143 1940 Saiiptaoe-78-- $74 1940 Long-tt-$29 1938 Trenton Terror-72$32 1939 Zipper54-$48 1939 Kordo Wakefield-44- $17 MIO4IAP MODEL CD lemi-Isito Combined in/strip 1936 Plying Qsiolser94$49 1$37QuokerPlash-07$39 1937 Long Cabin78542 1937 Air Chief61945 STRUCKS 1940 70 Span 035 Sq SEMI-KIT Plan lncl-$33S0 NUW UIUI Combo Pull Kit $6300 SCALE LAN5 nd ORAWINGS SSt HEINKEL HE 1000 02 01s $1000 SHIPPINO AND HANOLINO 34 Page CATALOGUE Up $800 add $150 $200 PP/tot Class $801 $200t add $225 copy will sent $2001 $4500 odd $3t0 free-when requested $45tt $7tt0 odd $350 order over $70tt wdd $490 BBY HORN CA Addressees Odd 0% tOOt by specialties00 Send 510 VisafMC0*Exp15173 Moran Streel [At Cheek allow up 30 Bow 2212 days check clearanceWestminster Ca 92683 COOEsact Charges 710 t938311 Hdl tCash OnlyltAll UPS 710 8951203 long 'Construethon starts ssith drilling Iwo /o-iO dia holes yardstick Bend Ceiling hanger load hook hanger wire Form sliding-weieht hottk large paper clip use some coat hanger wire plastic contaIners used hold shot weight can drill 332-in dja hole through slip wire right through balance com pensator hitok must just balance weight beam lllt/itIlll slidine balance installed balanee weieht its hook mull weigh exactly pound have need weigh ships over 515 ptunds make-up two-pound balance weight assembls beam balance will weigh up twelve pounds As illustrated scale weighs n3aximum LIf six lb. 1/16-in representing fifth stz probably isnt accurate because fric tion pivots such accuracy would re quire hole spacing accurate about 0012 youll settle something like half-oc accuracy plenty good model three- six-lb range should no problem sensitivity can creased expense maximum weight decreasing size sliding balance weight half-oz weight place one-oc weight gives / ois. lOin lb capacity three lb suppose could really get carried away use aluminum yardstick perhaps sharpen parts coathanger hooks go through drilled holesbut much perfection really need About bloody props response lead item January issue concerning gen tlemanly art whittling Ken Simpson Cedar burg WI sends following suggestion 176 Model Aviation better solution using adhesive tape buy rubber finger kind used sorting papers come various sizes avail able office supply stores Get snug enough stay loose enough have some move ment slight amount play allows rubber slip knife blade hits rubber fingerdont get cut recently ran article about backwoodsy guy whittles lot wooden spoons photo him stripped waist whittling away knife directed straight toward bare belly hell bent hara-kiri trip trick arms locked hard against sides whennot ifthe blade slipped wouldnt sail forth far enough cive him unscheduled belly button worse Controllable supernormal flight following based material appeared article Automotive Engineering December 1982 turn based Society Automotive Engi neers paper 821469 Flight Supernormal Atti tudes Thomas H Strom William Alford Jr Dynamic Engineering Inc DEl Thanks Joseph Ziomek calling article MAs attention Can imagine DT-ing full-size Boeing 747 ll thats almost what guys talking about readers familiar modern competition Free Flight DT stands dethermalize various endings -er -ing etc refers way get models down quickly safely instead losing theyd rather continuing upward rapidly rising thermal bubble hot air usually employing fuse timer-operated device allow trailing edge horizontal stabilizer pop-up high negative angle Conlinuedonpazge 180 rjyjp mi mirmrrntrrri 12001400 & 2000 MIL GIANT SCALE NICAD AMoam Pad ALai&ZLte (FULL*SIZE*PLANS 405 Regent Queen Skies$1350 RC Big sport biplane trainer fun Uses 40 60 power 4-ch RO Two sheets No 406Piper Comanche$825 CL Sport Scale uses twin 25s throttle control two shts No 407Boeing XF5B-1$425 RC Sport Scale /2A power 2 3-ch RC No 408Re-Volt-Er$650 RO Electric-power sport flier 2-ch RC 05 motor Gee Bee Model Y 40-powered AC stand-off scale ooe great old-rime racers Stilletto CL Slant model McDonald wInner 197619801982 FAt World Champs$275 Ole Reliable RC 70 version 36 old-timer REM cOntrols 19-25$425 Bloc Birds AC Ken Willards formation platte 4-oh 10$275 Crasirmaster CL Crash-proof trainer 2 sioesf 5-30 39-40$125 Gee Bee AC Granger Williams magrrificenf Model Z 40 engine$750 Cap 29 40-powered scale RC French aerobattc plane Low wing tail-dragger 2 sheets$750 Gee Bee Sr Sportster AC t/dscale Hatfhe 91 power Prototype spas 30 9 2t3sheets51175 MinI F16 AC Sarpolas 049 dacted fan sport flier 2-ch Balsa wings tail fuse structore$275 Pegasos AC Watsons giant onper sailplane featores flaps spoilers T-tail lOS wingspan5875 1930 Fleet Biplane AC Sport Scale 35 dO 4-cS Wingspan 56 1 6 scale Two sheets $825 Drake II AC Ken Willards flying boat 3-oh. 15-power Fly land wifh removable gear $375 Taylor Cob AC Don Stalls Schoolyard-Scale Odgs 2-3 CS Spans 55 iv350 Zephyr AC Small 2-oh glider hand-launch tow thermal slope soarng$200 Wasp VI PP Mike Stays Nato-winning Outdoor HLG$100 Onestep AC Trainer has onry forgiving Ifying guatifies 3-cS 10- 25 power$429 Merlyn AC Giant 155-in span Sailplane arms AC channels$750 Made Loner Rocket AC t/a-Scale spans 929 h-ce flaps 1 2 cv iv engine 8 Pieces FF Indoor bash B Robber-power confeot-winver W Sian Gorder$100 Sopercat AC Hafl-A Pylon Racer sport fIle Aileron elevator cvnf rot Foam wng$250 Seawaster AC Willards 40-size flying hoaf 4-cs Strap-sn gear landplane 2 shls $1199 Space ShoBle II AC Larger improved version 01 Hue 3lider 3-cS$550 CAP21 AC Giant-Soale 01 French aerohalic cras spans 71/4 5 Ouartra power 2 sheets r doc$1499 Strato-Streak AC Old-Timer versivo Garamis famous dl PP design 3A power 2-cs$500 Neighelon AC Low-wing fri-gear sportoter power 4-cs $500 Marissa PP Rubber-powered sportster Golden Age tradition$298 Snapahop Twin AC Workhorse utilitysport ship twin 35-45 4-5 ch Foam wings iSo 12 lbs 2 ohIo$1199 Aoroeoa AC SportlAerobalic flier 5d9-f 0 -power ases 2 3 ch$350 Wiegmaster CL Sport-Stunter t3A Profile fuselage sheet wings in-flaps$200 Mr Spook Ill AC Fly Sport Pylon Nov Sportsman Paoern sheet s 0 Uses 4-cs 25- 45 pwr$500 Monoboote SpA CL t2A Combat ship large ligst saper pedormer$275 Witch Hawk 500 FF Hot Class AB Gas compofifion ship 15-23 power Nats-arneleg desgn$375 Nany Flier PP Rubber-power sports flier captains Golden Age flavor Spans 26 rn$300 Callisto 92 AC Fly sleek Nats-wineing Sailplane rn AMA Mod Sf4 Unlimiled classes$750 Similar fliP AC boans famous design retains 50-so Pattern plune Retracts foam wing$550 Laser 200 AC Sport Scala replica championship Aerobatic flier Uses 40 power 4-h ch 2 shro$1075 Coach Mate PP CaIn low-wing sporloter CO-2 powem spans 3517 in$225 US Male AC Hage gentle-flying biplane trainer sport Spana 80 hO engine 3-cs Two ohIo$1450 LII Onickle CL Nats-wineing Scale Racer HOT 15 power$325 Orange Boa AC Lighlweight slope soarer gentle winds hand low Uses 2 AC channels$500 Cttlstopher AC Sport Scale paracsatistl Two-oh set hides torso moves arms sleet chute$425 Klood King AC Reduced modernized version 011938 design Old-Timer 2 3 ch$498 Rain Crow II PP High-pedormance Outdoor Hand Launched Glider 5 Sky Beby CL Racer Mouse Scale Plans show Coo Black Widow Spans 1 g3a in. V-tail$175 Lee-Richards PP blectric-powemed 020 Scale ring-wing Oldie$298 Bell YFM-1 Airacoda CL Sport Scale profile twiv pusher reed-valve 049s$225 Gee Bee R-1 AC HaSkes latest t/a-scale spans 75 in. weighs 15 IS flies 90 larger Four shIn no400$2225 Zephyr 1100 AC AMA Class B Sailplace 3-channel AC gear $675 Mi di-Slow CL Rat-Race-style Stunf trainer 30-power Profile$599 Royal Lancer PP Basic competition model AMA Class uses otandard-pedormance 1 5 engines$550 Ape PP Jumbo Rubber Scale Armstrong-Whilmvrth research biplane mid-Twenties$475 Cob Floatplane AC Sport Scale 049-t 0-size engines d-ch AC J-3 floats isa classic9950 Focke-Walt 199 CL Profile Scale power features unigae engine moont realism$200 3U~~ Circlenumbers plans wish toorder I 131193225239262282291299302307 310314326332343348354356358362 365368370371372374375376377378 I 379380382383385386388389390391 I I392393394395396397398399400401 I402403404405406407408 Please pnnt carefullyEnclosed $______ I_____ _____ _____ NAME __- _____________ ____ ___I STREET ________ ________ ________ ____ H __________ ____ _______ ___ __ U Ja______ -- _ -PrICe includes first-class postage Send check money order payable Model Aviation AMA 1810 Samuel Morse Dr Reaton VA 22090 attack causing aircraft go violent stall settle gently ground its fuselage remaining horizontal attitude wing course ts completely stalled tail surfaces hence controllable aspect Supernormal name authors have given flight fully-stalled wing Researchers Dynamic Engineering Inc giving serious consideration application supernormal flight SNF full-size aircraft An all-moving tail something close essential feature authors mention passive DT use rightly crediting Carl Goldberg mention having done free flight tests guess notion DT-ing real airplane clear ground isnt too far out wing loading low enough limit rate descent value landing gear human body can absorband alternative crash certain death perhaps 9999% survival probability isnt essential DT-ing way ground zero power mony applications SNF have considered Consider plane accidentally stalls low altitude conventional aircraft crash absolute certainty pilot could hit panic button would DT tail apply full power conceivably magnitude crash could substantially reducedperhaps near zeroand probability survival increasedperhaps nearly 100% Recall during descent tail surfaces would stalled Out pilot would have some degree control Perhaps specially-designed de vices could employed slow descent rate lower provided conventional wing deep stall Recovery spins NASA has demonstrated SNE controls effective spin recovery lightly-loaded general aviation aircraft nor nial spin characteristics spin recovery using SNF controls has demonstrated also heavily-loaded models fighter aircraft normally have flat fast-spinning characteristics make recovery very difficult use conventional control techniques SNF controls might used fuel-usage reduction during early phases landing V/STOL aircraft During final landing phases normal vectored thrust would applied authors have paid particular attention applications lightweight fighter LWF air craft Some applications SNF studied include sudden deceleration causing attacking aircraft overshoot sudden turns SNF condition tnoderate speeds enhanced aiming pointing weapons low speeds authors also mention SNF controls could allow certain aircraft fly nose up out loss altitude very low forward speed dont recall certain WW fighters could moping along under full power perhaps 15 mph low-speed engines big props giving good thrust low speeds doesnt seem impossible Can someone clue Well anyhow sort seems like something someone should taking good hard look its good know DEl doing Hope dont run out mieney Tip month Bob Womack observes next time have apply rubber lube motor put rubber sandwich bag poly ethylene paper put required amount lube close bag rub bag between hands presto ly lubed motor no sticky greasy palms Im sorry dont know print-source item Rob Meuser 420) Greof-v St Ooklorld CA 95619 180 Model Aviation No 131 No 193 No 225 No 239 No 262 No 282 No 291 No 299 No 302 No 307 No 310 No 314 No 326 No 332 No 343 No 249 No 354 No 356 No 358 No 362 No 365 No399 No 370 No 371 No 372 No 374 No 375 No 376 No 377 No 378 No 379 No 380 No 392 No 293 No 385 No 386 No 388 No 389 No 390 No 391 No362 No 393 No 394 No399 No399 No 397 No 399 No 399 No 400 No491 No 402 No 493 No 404 D c\ Ca CC C aol 100 aol C to-C C c54 olE am Eg CC C
Edition: Model Aviation - 1983/05
Page Numbers: 76, 77, 175, 176, 180
Free Flight DURA TION Bob Meuser THE RULES AMA Cargo event check em out theyre AMA rule book pretty simple Basically small-field event dont come smaller Using Cox 020 engine pair OlOs main idea see much gross weight can carry least 40 sec maximum 20-sec engine run wingspan restriction 48 Clearly arent going have problem keeping model sight Back March 1977 column presented sketch Roman Ramirezs record-breaking model carried three-flight-total 76 oz Somewhere along line upped 82 oz 1979according August 1980 columnhe stuck up 8342 oz might have lost track has meanwhile last September cpped totally ridiculous figure 10021 oz about two lb per flight Try local 020 models would scarcely get off ground let alone make flight times twice engine-run times An ultra-sophisticated model maybe winglets super computer-designed airfoil Nope same old square-tip turkey hes flying along good old NACA 6409 airfoil out Twenties Thirties simple model well-flown beats usual Tissue tips Taking note several items regard iog virtues various covering tissues have appeared column recent months Al Lidberg supplies following information 1 agree real Japanese tissue nice stuff HAA/ Pgc44 CYL /A1ej 7 0 2 4 6 i 0/z4F6z8 Ij 8 47 /h LAO 8A4 AA/ee-PAAT sv2e / 3/ 3233 34 35 36 II rACr 5 OA/ a7/CA/ i, b4EP7/C/-i / Z &5~ c26C ~7L Al ~V ~egs-- i~ h7e %//4Ar44ej 4P0 LAD - ee 77e-g A-IA 7eAL A44 e7c9A/47sqj/ eA/ 7 ~A4 94 4ACE% LEi-AL. 563 --/777f42S k7/C %&AZ Bob Dittmers steelyard scalemake under dollar wooden yardstick coat hanger some small plastic containers some BBs Capacity depends sliding weight 6 lb work theres workable alternative Art supply stores some hobby shops sell tissue artsy-craftsy projects such flowers etc stuff cheap lOg-15g per sheet comes about two dozen colors black included Ive used golden yellow red couple models covering tissue good results 'None stuff colorfast water needs use very line mist shrinking use atrbrush avoid large drops make big blot marks 'For black trim strips numbers tissue works great can stuck down thinner just like real tissue Ive also used khaki brown Sperry Messenger recently appeared MAN brown pretty terrible though has little resistance tears holesfar worse thing Ive ever used color just right Dont know color tissue seems have different qualities Some black brown have shine side like good tissue dont work well covering Some red yel low blue dull both sides yet work well Mike Stoy has won Indoor HL Glider event US FF Champs twice flights around 33 sec under 20-ft ceiling Note large model size tiny tail-teath ers until recently didnt know would work having never tried theml fi Ds4 FL4H7 47 AVV P47w A441/MOAI DURA7/A \ /\ / Ix 5A5 XI\ ______ K -O2 4t \- oa sq __________ C c 75/1552 TZeCi #3 • R 7W5 UV4/A1/T5CM4v55/U 8LM &I 5 FPPL/7Cl4AIP$ ________ ________ _______ _______ _______ inches Will Team Williams Unlimited Mulvihill model able beat Bob White Meuser claims drawn its rugged enough everyday contest use-but special-purpose design modelers using plane have own favorite prop designs 76 Model Aviation expensive tissue Anyhow black craft tissue good trim ming sounds lot practical dyeing own price dime per sheet fact its easy find make worth using New gas-power event New competition events come go Most die young after few tries some go decades within particular club some become perhaps detriment ficial AMA eventsOften goal increase interest Free Flight competition introducing events will appeal newcomers takes whole lot accomplish goal mere introduction new events sometimes new event helps tentative rules several new events being kicked around San Diego area SD Forty-Niner Gas I Class limited monoplanes 2 No dimension including engine D/T ap paratus exceed 48 inches 3 Minimum weight excluding fuel 172 ozs 490 gin 4 Powerplant must stock Cox single-bypass Testors reed valve engine 049-051 cu maximum displacement 5 No clockwork engine timers variablesurface geometry permitted 6 Fuse-type clockwork D/T timers allowed 7 CD furnish fuel nominal 15% nitro methane 8 120-second flight maximum CD may shorten lengthen according site environ ment 9 30-second flight minimum Unlimited tempts allowed complete two official flights 10 Minimum engine run 10 sec No maximum engine run II Fuel tank capacity may restricted addi tion BBs etc 12 Flight scoring will use formula Right Time sec x 100Official flight score Engine-run Time* *time nearest I/S sec 13 Highest score two official flights deter mines winner 14 15% bonus added total score unas sisted two-main-gear-wheel ROG launches 15 Mass launches settle tied scores Formula applies 16 Fuselage must contain theoretical box 2 X 3 x 7 Swiped Scale Staffel newsletter slightly doctored goal event encourage easilybuilt rugged inexpensive models rules seem accomplish However wonder about prohibition clockwork engine timers Tomy timers can made inexpensively Presumably formula takes care degree Flight time seconds vague nearest whole second drop fractions round down Furthermore impos sible measure engine run nearest I/S second mechanical stopwatch needle doesnt snap over until 1/5-second has passed digital stopwatch could give different result could important dividing engine-run time Human errors inevitable timing engine runs will drastically affect scores Clearly way win 120-sec max whatever CD sets going tum out require ROG takeoff slicing engine run close possible 10-sec minimum So guy has time money develop good non-clockwork engine timer has built-in advantage scarcely line what seem May 1983 77 Nifty Old-Timer Rubber model Pacific Ace Sherman Gillespie kit sold 25* 1938 once again available CPM Products 722 Lennox Yreka CA 96097 $495 plus Si post Continued page 175 Dale Mateer Dayton OH logged 10 maxes Class Cox 15-pow ered French Wren got him 3rd place Central Indiana Aero modelers meet last fall Harry Murphy photo Doc Anderson fiberglass prop used Dick Smiths K&B-powered Satellite 788 beautiful pale blue color also has zero pitch tips designed increase pitch rpm model speed increase Excep tional performance claimed Harry Murphy photo check model alignment Support model indicated center gravity does balance properly shift equipment add ballast necessary Pick nice calm evening join quiet revolution Youll find Re-Volters flight characteristics slow gentle get trouble model will recover its owngiven enough altitude release control sticks makes acceptable landings unassisted adequate room Run silent run high FF Duration/Meuser Continued page 77 goals Nit-picking perhaps rules ever bad have way becoming cast concrete therefore awfully hard change Send SASE three-page list lay long trip merely illustrate good rules difficult designand probably have found frac tion loopholes However basic structure event seems have lot merit will interesting see what comes Unlim-Mulvi again January issue dis cussed annual event held Taft over Memorial Day weekend US FF Champs mentioning Loren Williams co conspirators hot after Bob Whites tailfeathers him being perennial winner crazy event promised Id have details Team Williams approach soon soon takes around call attention rules event published October 1982 column Crazy event . flight dawn maximum duration flight Pure Free Flight its best dont come no crazier So heres three-view Ive crammed detail could onto few square inches available leaves lot untold wamed machine timid weak designed purpose take Oakland Cloud Dusters perpetual trophy away Bob White contest-after-contest Mulvihill events machine although wood sizes increased next larger commercially-available sizes wood stout heart used critical members such spars longerons design would least good others such purposes n example tuselage weighing mere 10 grams uncovered must cope pent-up emotions some seven times its own weight impetuous unpredictable Pirelli rubber having potential en ergy capable lifting itself height upwards 3200 feet present Team Williams consists Loren Williams himself Andy Faykun Dick Siefried Mike Mulligan Mik Mikelson things ex-Indoor World Champ Bud Romak Total weight models using tissue covering peddled Oldtimer Models will 70 grams less Motors consisting 20 22 strands /8-inch Pirelli equivalent lot slack will weigh less 70 grams favoring low sinking speed resulting minimum overall weight Props three-view carefully avoids issue up grabs everyone doing own thing present Larabee Schwartzbach whatever Book reviews regurgitated February column talked about Bob Stalicks book air foils stated two bucks coordinates 45 airfoils biggest boggin town reader Californias northemmost county egon close California-Seattle boundary wrote inform about 60 short fact book contains 105 airfoils makes betta boggin mere $250 including postage gets Write Stalick 5066 Picadilly Circle Albany OR 97321 Making inexpensive weighing scale start two-bit wooden yardstick couple coat hangers paper clips snap-top plastic containers Twenty minutes later end up scale equal costing upwards 50 bucks bad fringe benefit doesnt take up workbench space flip side ol lady might appreciate screw eye dining room ceiling generic name such things cared steelyard inde pendent material made made wood nor properly termed woodyard following material article Bob Dittmer appeared SAM Speaks times have wished scale could use weigh new gas job plans simple easy-to-make beam balance accurate could ask materials required yardstick buckshot required coat hanger large paper clip two snap-top plastic containers I-in dia x 2-in long 2-in dia x 2-in Best Custom Screen Sportswear _______Our Latest_______ Design rxor 7ACU2E Servo8RivD Failure. 47 Glitched s. out oj 309 s.d trrr Tao Cain - Power ZJ 7~j9 Lines O Leo0 NWres ENGINE OVEINESiEi coo Ciii disoriented TOO MUCH BEER iust some avaition designs available top quality line sportswear designs direct printno heat transferl Gee See. P40 Warhawks. Fokker D Vii. P38. Christen Eagle. Pitis Special bria AT-S. P47. Steerman. Curtis Jenny. Corsair. its flat doesnt move can print favorite design dont see what want call write Coaches shirts$1295 Jackets$2195 Ladies tops$995 Shorts-$595 Saseball shirtsS895 SweatshirosS1195 Football iersevsS895 TShirts$695 Wide choice colors sizesl Send SASE illustrated brochure Name Address CityStateZip DesignSize Color MD residents add 5% tax now accept Master CardlVisa TO ORDER Send check money order ladd 10% postagelhandlingi OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct Upper Marlboro MD 20772 130116275118 May1983 175 N 8RYPCECN Y HOLD TI-IE BOX FOP ME WHILE GET MY BINOCuLPPS NT 5EE THE PLRNL PNYMORE 1131 NW 45 SIreel Ft Lauderdale FL 33309 13051 491-6115 ENGINEERING THE LANDING GEAR PEOPLE Tired kil landieg Heart dont lit feer biggie properif 0 & 0 Eaglneerieg can tale feur preblemsi * Custom bailt needs & specs guaranteed le Ill * Otnig & durable 10 withstand toughest landing * 0 & 0 Engineering gear will wtrk & keep biggie flying * In stock replaceetest gear let popular models Byrne Pills Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawnee Eagle Nesee Big Slick Champ Citabrta B & II models Snapper Stinger Snapper Ten FEATURES o completely assembled connector choice o factory fresh cells built specifications SAFT AMERICA 0 vibration proof construction int weld between cells o hi-rate charge capability charge 480 mil rate continuous cell damage o each pack completely cycled prior shipment o available flat square stick configuration unique battery compartments weight/balance considerations o extra long leads available special applications o custom designs dual airborne back-up systems o hi-rate UL approved charger available-charge rate 120 mil o individual cells solder tabs 12 14 20 Ah capacities o 1200 1400 airborne packs weigh 72 oz complete 0 2000 airborne packs weigh 115 oz complete 4 6 cell 12 14 Ah race car electric boat packs 54 Qr m 1200& 14002000 // See Local Hobby Shop Dealer first Lakes Radio Control Inc Southamptom z Livonia MI 48152 E MFGRS& DISTRIBuTORS QUALITY RIC PRODUCTS & COMPONENTS SEND $100 FOR COMPLETE CATALOG OF ALL BATTERY SYSTEMS AND OTHER PRODUCTS AVAILABLE FROM GLR/C REFUNDABLE ON FIRST ORDER 9 Hoiy H Wng Span--Sal Wing Area--569 Sq SENSOAR glider HOBBY HORN Eaclusive HOBBY HORN Kit SENSOAR Glide- kit high quality kit Maohne cut S sanded parts Select qualrty balsa spruce Oetailed plans written instructIons THERMAL SLOPE 05 ELECTRIC POWER VALUE PRICED 51500 E OLD I7R tOflO bull axi Partial Kits P & W Semi-Kits Combined full atripwood plan Now mci Wire Window etc Mat Note may purchased just aemi hits pIanowrite catt priceo 1936 Bueeaneer84Stl 1938 Clipper MK 172-$3t 1937 Oatlaare Sptser1t8$61 194t Sanger4t $27 1939 Meroory72$t6 1931 Miss Amerieoi4$59 1941 Playboy Jr54-$29 1941 Ptoyboy SrBt$4t 1938 Power House94-143 1940 Saiiptaoe-78-- $74 1940 Long-tt-$29 1938 Trenton Terror-72$32 1939 Zipper54-$48 1939 Kordo Wakefield-44- $17 MIO4IAP MODEL CD lemi-Isito Combined in/strip 1936 Plying Qsiolser94$49 1$37QuokerPlash-07$39 1937 Long Cabin78542 1937 Air Chief61945 STRUCKS 1940 70 Span 035 Sq SEMI-KIT Plan lncl-$33S0 NUW UIUI Combo Pull Kit $6300 SCALE LAN5 nd ORAWINGS SSt HEINKEL HE 1000 02 01s $1000 SHIPPINO AND HANOLINO 34 Page CATALOGUE Up $800 add $150 $200 PP/tot Class $801 $200t add $225 copy will sent $2001 $4500 odd $3t0 free-when requested $45tt $7tt0 odd $350 order over $70tt wdd $490 BBY HORN CA Addressees Odd 0% tOOt by specialties00 Send 510 VisafMC0*Exp15173 Moran Streel [At Cheek allow up 30 Bow 2212 days check clearanceWestminster Ca 92683 COOEsact Charges 710 t938311 Hdl tCash OnlyltAll UPS 710 8951203 long 'Construethon starts ssith drilling Iwo /o-iO dia holes yardstick Bend Ceiling hanger load hook hanger wire Form sliding-weieht hottk large paper clip use some coat hanger wire plastic contaIners used hold shot weight can drill 332-in dja hole through slip wire right through balance com pensator hitok must just balance weight beam lllt/itIlll slidine balance installed balanee weieht its hook mull weigh exactly pound have need weigh ships over 515 ptunds make-up two-pound balance weight assembls beam balance will weigh up twelve pounds As illustrated scale weighs n3aximum LIf six lb. 1/16-in representing fifth stz probably isnt accurate because fric tion pivots such accuracy would re quire hole spacing accurate about 0012 youll settle something like half-oc accuracy plenty good model three- six-lb range should no problem sensitivity can creased expense maximum weight decreasing size sliding balance weight half-oz weight place one-oc weight gives / ois. lOin lb capacity three lb suppose could really get carried away use aluminum yardstick perhaps sharpen parts coathanger hooks go through drilled holesbut much perfection really need About bloody props response lead item January issue concerning gen tlemanly art whittling Ken Simpson Cedar burg WI sends following suggestion 176 Model Aviation better solution using adhesive tape buy rubber finger kind used sorting papers come various sizes avail able office supply stores Get snug enough stay loose enough have some move ment slight amount play allows rubber slip knife blade hits rubber fingerdont get cut recently ran article about backwoodsy guy whittles lot wooden spoons photo him stripped waist whittling away knife directed straight toward bare belly hell bent hara-kiri trip trick arms locked hard against sides whennot ifthe blade slipped wouldnt sail forth far enough cive him unscheduled belly button worse Controllable supernormal flight following based material appeared article Automotive Engineering December 1982 turn based Society Automotive Engi neers paper 821469 Flight Supernormal Atti tudes Thomas H Strom William Alford Jr Dynamic Engineering Inc DEl Thanks Joseph Ziomek calling article MAs attention Can imagine DT-ing full-size Boeing 747 ll thats almost what guys talking about readers familiar modern competition Free Flight DT stands dethermalize various endings -er -ing etc refers way get models down quickly safely instead losing theyd rather continuing upward rapidly rising thermal bubble hot air usually employing fuse timer-operated device allow trailing edge horizontal stabilizer pop-up high negative angle Conlinuedonpazge 180 rjyjp mi mirmrrntrrri 12001400 & 2000 MIL GIANT SCALE NICAD AMoam Pad ALai&ZLte (FULL*SIZE*PLANS 405 Regent Queen Skies$1350 RC Big sport biplane trainer fun Uses 40 60 power 4-ch RO Two sheets No 406Piper Comanche$825 CL Sport Scale uses twin 25s throttle control two shts No 407Boeing XF5B-1$425 RC Sport Scale /2A power 2 3-ch RC No 408Re-Volt-Er$650 RO Electric-power sport flier 2-ch RC 05 motor Gee Bee Model Y 40-powered AC stand-off scale ooe great old-rime racers Stilletto CL Slant model McDonald wInner 197619801982 FAt World Champs$275 Ole Reliable RC 70 version 36 old-timer REM cOntrols 19-25$425 Bloc Birds AC Ken Willards formation platte 4-oh 10$275 Crasirmaster CL Crash-proof trainer 2 sioesf 5-30 39-40$125 Gee Bee AC Granger Williams magrrificenf Model Z 40 engine$750 Cap 29 40-powered scale RC French aerobattc plane Low wing tail-dragger 2 sheets$750 Gee Bee Sr Sportster AC t/dscale Hatfhe 91 power Prototype spas 30 9 2t3sheets51175 MinI F16 AC Sarpolas 049 dacted fan sport flier 2-ch Balsa wings tail fuse structore$275 Pegasos AC Watsons giant onper sailplane featores flaps spoilers T-tail lOS wingspan5875 1930 Fleet Biplane AC Sport Scale 35 dO 4-cS Wingspan 56 1 6 scale Two sheets $825 Drake II AC Ken Willards flying boat 3-oh. 15-power Fly land wifh removable gear $375 Taylor Cob AC Don Stalls Schoolyard-Scale Odgs 2-3 CS Spans 55 iv350 Zephyr AC Small 2-oh glider hand-launch tow thermal slope soarng$200 Wasp VI PP Mike Stays Nato-winning Outdoor HLG$100 Onestep AC Trainer has onry forgiving Ifying guatifies 3-cS 10- 25 power$429 Merlyn AC Giant 155-in span Sailplane arms AC channels$750 Made Loner Rocket AC t/a-Scale spans 929 h-ce flaps 1 2 cv iv engine 8 Pieces FF Indoor bash B Robber-power confeot-winver W Sian Gorder$100 Sopercat AC Hafl-A Pylon Racer sport fIle Aileron elevator cvnf rot Foam wng$250 Seawaster AC Willards 40-size flying hoaf 4-cs Strap-sn gear landplane 2 shls $1199 Space ShoBle II AC Larger improved version 01 Hue 3lider 3-cS$550 CAP21 AC Giant-Soale 01 French aerohalic cras spans 71/4 5 Ouartra power 2 sheets r doc$1499 Strato-Streak AC Old-Timer versivo Garamis famous dl PP design 3A power 2-cs$500 Neighelon AC Low-wing fri-gear sportoter power 4-cs $500 Marissa PP Rubber-powered sportster Golden Age tradition$298 Snapahop Twin AC Workhorse utilitysport ship twin 35-45 4-5 ch Foam wings iSo 12 lbs 2 ohIo$1199 Aoroeoa AC SportlAerobalic flier 5d9-f 0 -power ases 2 3 ch$350 Wiegmaster CL Sport-Stunter t3A Profile fuselage sheet wings in-flaps$200 Mr Spook Ill AC Fly Sport Pylon Nov Sportsman Paoern sheet s 0 Uses 4-cs 25- 45 pwr$500 Monoboote SpA CL t2A Combat ship large ligst saper pedormer$275 Witch Hawk 500 FF Hot Class AB Gas compofifion ship 15-23 power Nats-arneleg desgn$375 Nany Flier PP Rubber-power sports flier captains Golden Age flavor Spans 26 rn$300 Callisto 92 AC Fly sleek Nats-wineing Sailplane rn AMA Mod Sf4 Unlimiled classes$750 Similar fliP AC boans famous design retains 50-so Pattern plune Retracts foam wing$550 Laser 200 AC Sport Scala replica championship Aerobatic flier Uses 40 power 4-h ch 2 shro$1075 Coach Mate PP CaIn low-wing sporloter CO-2 powem spans 3517 in$225 US Male AC Hage gentle-flying biplane trainer sport Spana 80 hO engine 3-cs Two ohIo$1450 LII Onickle CL Nats-wineing Scale Racer HOT 15 power$325 Orange Boa AC Lighlweight slope soarer gentle winds hand low Uses 2 AC channels$500 Cttlstopher AC Sport Scale paracsatistl Two-oh set hides torso moves arms sleet chute$425 Klood King AC Reduced modernized version 011938 design Old-Timer 2 3 ch$498 Rain Crow II PP High-pedormance Outdoor Hand Launched Glider 5 Sky Beby CL Racer Mouse Scale Plans show Coo Black Widow Spans 1 g3a in. V-tail$175 Lee-Richards PP blectric-powemed 020 Scale ring-wing Oldie$298 Bell YFM-1 Airacoda CL Sport Scale profile twiv pusher reed-valve 049s$225 Gee Bee R-1 AC HaSkes latest t/a-scale spans 75 in. weighs 15 IS flies 90 larger Four shIn no400$2225 Zephyr 1100 AC AMA Class B Sailplace 3-channel AC gear $675 Mi di-Slow CL Rat-Race-style Stunf trainer 30-power Profile$599 Royal Lancer PP Basic competition model AMA Class uses otandard-pedormance 1 5 engines$550 Ape PP Jumbo Rubber Scale Armstrong-Whilmvrth research biplane mid-Twenties$475 Cob Floatplane AC Sport Scale 049-t 0-size engines d-ch AC J-3 floats isa classic9950 Focke-Walt 199 CL Profile Scale power features unigae engine moont realism$200 3U~~ Circlenumbers plans wish toorder I 131193225239262282291299302307 310314326332343348354356358362 365368370371372374375376377378 I 379380382383385386388389390391 I I392393394395396397398399400401 I402403404405406407408 Please pnnt carefullyEnclosed $______ I_____ _____ _____ NAME __- _____________ ____ ___I STREET ________ ________ ________ ____ H __________ ____ _______ ___ __ U Ja______ -- _ -PrICe includes first-class postage Send check money order payable Model Aviation AMA 1810 Samuel Morse Dr Reaton VA 22090 attack causing aircraft go violent stall settle gently ground its fuselage remaining horizontal attitude wing course ts completely stalled tail surfaces hence controllable aspect Supernormal name authors have given flight fully-stalled wing Researchers Dynamic Engineering Inc giving serious consideration application supernormal flight SNF full-size aircraft An all-moving tail something close essential feature authors mention passive DT use rightly crediting Carl Goldberg mention having done free flight tests guess notion DT-ing real airplane clear ground isnt too far out wing loading low enough limit rate descent value landing gear human body can absorband alternative crash certain death perhaps 9999% survival probability isnt essential DT-ing way ground zero power mony applications SNF have considered Consider plane accidentally stalls low altitude conventional aircraft crash absolute certainty pilot could hit panic button would DT tail apply full power conceivably magnitude crash could substantially reducedperhaps near zeroand probability survival increasedperhaps nearly 100% Recall during descent tail surfaces would stalled Out pilot would have some degree control Perhaps specially-designed de vices could employed slow descent rate lower provided conventional wing deep stall Recovery spins NASA has demonstrated SNE controls effective spin recovery lightly-loaded general aviation aircraft nor nial spin characteristics spin recovery using SNF controls has demonstrated also heavily-loaded models fighter aircraft normally have flat fast-spinning characteristics make recovery very difficult use conventional control techniques SNF controls might used fuel-usage reduction during early phases landing V/STOL aircraft During final landing phases normal vectored thrust would applied authors have paid particular attention applications lightweight fighter LWF air craft Some applications SNF studied include sudden deceleration causing attacking aircraft overshoot sudden turns SNF condition tnoderate speeds enhanced aiming pointing weapons low speeds authors also mention SNF controls could allow certain aircraft fly nose up out loss altitude very low forward speed dont recall certain WW fighters could moping along under full power perhaps 15 mph low-speed engines big props giving good thrust low speeds doesnt seem impossible Can someone clue Well anyhow sort seems like something someone should taking good hard look its good know DEl doing Hope dont run out mieney Tip month Bob Womack observes next time have apply rubber lube motor put rubber sandwich bag poly ethylene paper put required amount lube close bag rub bag between hands presto ly lubed motor no sticky greasy palms Im sorry dont know print-source item Rob Meuser 420) Greof-v St Ooklorld CA 95619 180 Model Aviation No 131 No 193 No 225 No 239 No 262 No 282 No 291 No 299 No 302 No 307 No 310 No 314 No 326 No 332 No 343 No 249 No 354 No 356 No 358 No 362 No 365 No399 No 370 No 371 No 372 No 374 No 375 No 376 No 377 No 378 No 379 No 380 No 392 No 293 No 385 No 386 No 388 No 389 No 390 No 391 No362 No 393 No 394 No399 No399 No 397 No 399 No 399 No 400 No491 No 402 No 493 No 404 D c\ Ca CC C aol 100 aol C to-C C c54 olE am Eg CC C
Edition: Model Aviation - 1983/05
Page Numbers: 76, 77, 175, 176, 180
Free Flight DURA TION Bob Meuser THE RULES AMA Cargo event check em out theyre AMA rule book pretty simple Basically small-field event dont come smaller Using Cox 020 engine pair OlOs main idea see much gross weight can carry least 40 sec maximum 20-sec engine run wingspan restriction 48 Clearly arent going have problem keeping model sight Back March 1977 column presented sketch Roman Ramirezs record-breaking model carried three-flight-total 76 oz Somewhere along line upped 82 oz 1979according August 1980 columnhe stuck up 8342 oz might have lost track has meanwhile last September cpped totally ridiculous figure 10021 oz about two lb per flight Try local 020 models would scarcely get off ground let alone make flight times twice engine-run times An ultra-sophisticated model maybe winglets super computer-designed airfoil Nope same old square-tip turkey hes flying along good old NACA 6409 airfoil out Twenties Thirties simple model well-flown beats usual Tissue tips Taking note several items regard iog virtues various covering tissues have appeared column recent months Al Lidberg supplies following information 1 agree real Japanese tissue nice stuff HAA/ Pgc44 CYL /A1ej 7 0 2 4 6 i 0/z4F6z8 Ij 8 47 /h LAO 8A4 AA/ee-PAAT sv2e / 3/ 3233 34 35 36 II rACr 5 OA/ a7/CA/ i, b4EP7/C/-i / Z &5~ c26C ~7L Al ~V ~egs-- i~ h7e %//4Ar44ej 4P0 LAD - ee 77e-g A-IA 7eAL A44 e7c9A/47sqj/ eA/ 7 ~A4 94 4ACE% LEi-AL. 563 --/777f42S k7/C %&AZ Bob Dittmers steelyard scalemake under dollar wooden yardstick coat hanger some small plastic containers some BBs Capacity depends sliding weight 6 lb work theres workable alternative Art supply stores some hobby shops sell tissue artsy-craftsy projects such flowers etc stuff cheap lOg-15g per sheet comes about two dozen colors black included Ive used golden yellow red couple models covering tissue good results 'None stuff colorfast water needs use very line mist shrinking use atrbrush avoid large drops make big blot marks 'For black trim strips numbers tissue works great can stuck down thinner just like real tissue Ive also used khaki brown Sperry Messenger recently appeared MAN brown pretty terrible though has little resistance tears holesfar worse thing Ive ever used color just right Dont know color tissue seems have different qualities Some black brown have shine side like good tissue dont work well covering Some red yel low blue dull both sides yet work well Mike Stoy has won Indoor HL Glider event US FF Champs twice flights around 33 sec under 20-ft ceiling Note large model size tiny tail-teath ers until recently didnt know would work having never tried theml fi Ds4 FL4H7 47 AVV P47w A441/MOAI DURA7/A \ /\ / Ix 5A5 XI\ ______ K -O2 4t \- oa sq __________ C c 75/1552 TZeCi #3 • R 7W5 UV4/A1/T5CM4v55/U 8LM &I 5 FPPL/7Cl4AIP$ ________ ________ _______ _______ _______ inches Will Team Williams Unlimited Mulvihill model able beat Bob White Meuser claims drawn its rugged enough everyday contest use-but special-purpose design modelers using plane have own favorite prop designs 76 Model Aviation expensive tissue Anyhow black craft tissue good trim ming sounds lot practical dyeing own price dime per sheet fact its easy find make worth using New gas-power event New competition events come go Most die young after few tries some go decades within particular club some become perhaps detriment ficial AMA eventsOften goal increase interest Free Flight competition introducing events will appeal newcomers takes whole lot accomplish goal mere introduction new events sometimes new event helps tentative rules several new events being kicked around San Diego area SD Forty-Niner Gas I Class limited monoplanes 2 No dimension including engine D/T ap paratus exceed 48 inches 3 Minimum weight excluding fuel 172 ozs 490 gin 4 Powerplant must stock Cox single-bypass Testors reed valve engine 049-051 cu maximum displacement 5 No clockwork engine timers variablesurface geometry permitted 6 Fuse-type clockwork D/T timers allowed 7 CD furnish fuel nominal 15% nitro methane 8 120-second flight maximum CD may shorten lengthen according site environ ment 9 30-second flight minimum Unlimited tempts allowed complete two official flights 10 Minimum engine run 10 sec No maximum engine run II Fuel tank capacity may restricted addi tion BBs etc 12 Flight scoring will use formula Right Time sec x 100Official flight score Engine-run Time* *time nearest I/S sec 13 Highest score two official flights deter mines winner 14 15% bonus added total score unas sisted two-main-gear-wheel ROG launches 15 Mass launches settle tied scores Formula applies 16 Fuselage must contain theoretical box 2 X 3 x 7 Swiped Scale Staffel newsletter slightly doctored goal event encourage easilybuilt rugged inexpensive models rules seem accomplish However wonder about prohibition clockwork engine timers Tomy timers can made inexpensively Presumably formula takes care degree Flight time seconds vague nearest whole second drop fractions round down Furthermore impos sible measure engine run nearest I/S second mechanical stopwatch needle doesnt snap over until 1/5-second has passed digital stopwatch could give different result could important dividing engine-run time Human errors inevitable timing engine runs will drastically affect scores Clearly way win 120-sec max whatever CD sets going tum out require ROG takeoff slicing engine run close possible 10-sec minimum So guy has time money develop good non-clockwork engine timer has built-in advantage scarcely line what seem May 1983 77 Nifty Old-Timer Rubber model Pacific Ace Sherman Gillespie kit sold 25* 1938 once again available CPM Products 722 Lennox Yreka CA 96097 $495 plus Si post Continued page 175 Dale Mateer Dayton OH logged 10 maxes Class Cox 15-pow ered French Wren got him 3rd place Central Indiana Aero modelers meet last fall Harry Murphy photo Doc Anderson fiberglass prop used Dick Smiths K&B-powered Satellite 788 beautiful pale blue color also has zero pitch tips designed increase pitch rpm model speed increase Excep tional performance claimed Harry Murphy photo check model alignment Support model indicated center gravity does balance properly shift equipment add ballast necessary Pick nice calm evening join quiet revolution Youll find Re-Volters flight characteristics slow gentle get trouble model will recover its owngiven enough altitude release control sticks makes acceptable landings unassisted adequate room Run silent run high FF Duration/Meuser Continued page 77 goals Nit-picking perhaps rules ever bad have way becoming cast concrete therefore awfully hard change Send SASE three-page list lay long trip merely illustrate good rules difficult designand probably have found frac tion loopholes However basic structure event seems have lot merit will interesting see what comes Unlim-Mulvi again January issue dis cussed annual event held Taft over Memorial Day weekend US FF Champs mentioning Loren Williams co conspirators hot after Bob Whites tailfeathers him being perennial winner crazy event promised Id have details Team Williams approach soon soon takes around call attention rules event published October 1982 column Crazy event . flight dawn maximum duration flight Pure Free Flight its best dont come no crazier So heres three-view Ive crammed detail could onto few square inches available leaves lot untold wamed machine timid weak designed purpose take Oakland Cloud Dusters perpetual trophy away Bob White contest-after-contest Mulvihill events machine although wood sizes increased next larger commercially-available sizes wood stout heart used critical members such spars longerons design would least good others such purposes n example tuselage weighing mere 10 grams uncovered must cope pent-up emotions some seven times its own weight impetuous unpredictable Pirelli rubber having potential en ergy capable lifting itself height upwards 3200 feet present Team Williams consists Loren Williams himself Andy Faykun Dick Siefried Mike Mulligan Mik Mikelson things ex-Indoor World Champ Bud Romak Total weight models using tissue covering peddled Oldtimer Models will 70 grams less Motors consisting 20 22 strands /8-inch Pirelli equivalent lot slack will weigh less 70 grams favoring low sinking speed resulting minimum overall weight Props three-view carefully avoids issue up grabs everyone doing own thing present Larabee Schwartzbach whatever Book reviews regurgitated February column talked about Bob Stalicks book air foils stated two bucks coordinates 45 airfoils biggest boggin town reader Californias northemmost county egon close California-Seattle boundary wrote inform about 60 short fact book contains 105 airfoils makes betta boggin mere $250 including postage gets Write Stalick 5066 Picadilly Circle Albany OR 97321 Making inexpensive weighing scale start two-bit wooden yardstick couple coat hangers paper clips snap-top plastic containers Twenty minutes later end up scale equal costing upwards 50 bucks bad fringe benefit doesnt take up workbench space flip side ol lady might appreciate screw eye dining room ceiling generic name such things cared steelyard inde pendent material made made wood nor properly termed woodyard following material article Bob Dittmer appeared SAM Speaks times have wished scale could use weigh new gas job plans simple easy-to-make beam balance accurate could ask materials required yardstick buckshot required coat hanger large paper clip two snap-top plastic containers I-in dia x 2-in long 2-in dia x 2-in Best Custom Screen Sportswear _______Our Latest_______ Design rxor 7ACU2E Servo8RivD Failure. 47 Glitched s. out oj 309 s.d trrr Tao Cain - Power ZJ 7~j9 Lines O Leo0 NWres ENGINE OVEINESiEi coo Ciii disoriented TOO MUCH BEER iust some avaition designs available top quality line sportswear designs direct printno heat transferl Gee See. P40 Warhawks. Fokker D Vii. P38. Christen Eagle. Pitis Special bria AT-S. P47. Steerman. Curtis Jenny. Corsair. its flat doesnt move can print favorite design dont see what want call write Coaches shirts$1295 Jackets$2195 Ladies tops$995 Shorts-$595 Saseball shirtsS895 SweatshirosS1195 Football iersevsS895 TShirts$695 Wide choice colors sizesl Send SASE illustrated brochure Name Address CityStateZip DesignSize Color MD residents add 5% tax now accept Master CardlVisa TO ORDER Send check money order ladd 10% postagelhandlingi OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct Upper Marlboro MD 20772 130116275118 May1983 175 N 8RYPCECN Y HOLD TI-IE BOX FOP ME WHILE GET MY BINOCuLPPS NT 5EE THE PLRNL PNYMORE 1131 NW 45 SIreel Ft Lauderdale FL 33309 13051 491-6115 ENGINEERING THE LANDING GEAR PEOPLE Tired kil landieg Heart dont lit feer biggie properif 0 & 0 Eaglneerieg can tale feur preblemsi * Custom bailt needs & specs guaranteed le Ill * Otnig & durable 10 withstand toughest landing * 0 & 0 Engineering gear will wtrk & keep biggie flying * In stock replaceetest gear let popular models Byrne Pills Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawnee Eagle Nesee Big Slick Champ Citabrta B & II models Snapper Stinger Snapper Ten FEATURES o completely assembled connector choice o factory fresh cells built specifications SAFT AMERICA 0 vibration proof construction int weld between cells o hi-rate charge capability charge 480 mil rate continuous cell damage o each pack completely cycled prior shipment o available flat square stick configuration unique battery compartments weight/balance considerations o extra long leads available special applications o custom designs dual airborne back-up systems o hi-rate UL approved charger available-charge rate 120 mil o individual cells solder tabs 12 14 20 Ah capacities o 1200 1400 airborne packs weigh 72 oz complete 0 2000 airborne packs weigh 115 oz complete 4 6 cell 12 14 Ah race car electric boat packs 54 Qr m 1200& 14002000 // See Local Hobby Shop Dealer first Lakes Radio Control Inc Southamptom z Livonia MI 48152 E MFGRS& DISTRIBuTORS QUALITY RIC PRODUCTS & COMPONENTS SEND $100 FOR COMPLETE CATALOG OF ALL BATTERY SYSTEMS AND OTHER PRODUCTS AVAILABLE FROM GLR/C REFUNDABLE ON FIRST ORDER 9 Hoiy H Wng Span--Sal Wing Area--569 Sq SENSOAR glider HOBBY HORN Eaclusive HOBBY HORN Kit SENSOAR Glide- kit high quality kit Maohne cut S sanded parts Select qualrty balsa spruce Oetailed plans written instructIons THERMAL SLOPE 05 ELECTRIC POWER VALUE PRICED 51500 E OLD I7R tOflO bull axi Partial Kits P & W Semi-Kits Combined full atripwood plan Now mci Wire Window etc Mat Note may purchased just aemi hits pIanowrite catt priceo 1936 Bueeaneer84Stl 1938 Clipper MK 172-$3t 1937 Oatlaare Sptser1t8$61 194t Sanger4t $27 1939 Meroory72$t6 1931 Miss Amerieoi4$59 1941 Playboy Jr54-$29 1941 Ptoyboy SrBt$4t 1938 Power House94-143 1940 Saiiptaoe-78-- $74 1940 Long-tt-$29 1938 Trenton Terror-72$32 1939 Zipper54-$48 1939 Kordo Wakefield-44- $17 MIO4IAP MODEL CD lemi-Isito Combined in/strip 1936 Plying Qsiolser94$49 1$37QuokerPlash-07$39 1937 Long Cabin78542 1937 Air Chief61945 STRUCKS 1940 70 Span 035 Sq SEMI-KIT Plan lncl-$33S0 NUW UIUI Combo Pull Kit $6300 SCALE LAN5 nd ORAWINGS SSt HEINKEL HE 1000 02 01s $1000 SHIPPINO AND HANOLINO 34 Page CATALOGUE Up $800 add $150 $200 PP/tot Class $801 $200t add $225 copy will sent $2001 $4500 odd $3t0 free-when requested $45tt $7tt0 odd $350 order over $70tt wdd $490 BBY HORN CA Addressees Odd 0% tOOt by specialties00 Send 510 VisafMC0*Exp15173 Moran Streel [At Cheek allow up 30 Bow 2212 days check clearanceWestminster Ca 92683 COOEsact Charges 710 t938311 Hdl tCash OnlyltAll UPS 710 8951203 long 'Construethon starts ssith drilling Iwo /o-iO dia holes yardstick Bend Ceiling hanger load hook hanger wire Form sliding-weieht hottk large paper clip use some coat hanger wire plastic contaIners used hold shot weight can drill 332-in dja hole through slip wire right through balance com pensator hitok must just balance weight beam lllt/itIlll slidine balance installed balanee weieht its hook mull weigh exactly pound have need weigh ships over 515 ptunds make-up two-pound balance weight assembls beam balance will weigh up twelve pounds As illustrated scale weighs n3aximum LIf six lb. 1/16-in representing fifth stz probably isnt accurate because fric tion pivots such accuracy would re quire hole spacing accurate about 0012 youll settle something like half-oc accuracy plenty good model three- six-lb range should no problem sensitivity can creased expense maximum weight decreasing size sliding balance weight half-oz weight place one-oc weight gives / ois. lOin lb capacity three lb suppose could really get carried away use aluminum yardstick perhaps sharpen parts coathanger hooks go through drilled holesbut much perfection really need About bloody props response lead item January issue concerning gen tlemanly art whittling Ken Simpson Cedar burg WI sends following suggestion 176 Model Aviation better solution using adhesive tape buy rubber finger kind used sorting papers come various sizes avail able office supply stores Get snug enough stay loose enough have some move ment slight amount play allows rubber slip knife blade hits rubber fingerdont get cut recently ran article about backwoodsy guy whittles lot wooden spoons photo him stripped waist whittling away knife directed straight toward bare belly hell bent hara-kiri trip trick arms locked hard against sides whennot ifthe blade slipped wouldnt sail forth far enough cive him unscheduled belly button worse Controllable supernormal flight following based material appeared article Automotive Engineering December 1982 turn based Society Automotive Engi neers paper 821469 Flight Supernormal Atti tudes Thomas H Strom William Alford Jr Dynamic Engineering Inc DEl Thanks Joseph Ziomek calling article MAs attention Can imagine DT-ing full-size Boeing 747 ll thats almost what guys talking about readers familiar modern competition Free Flight DT stands dethermalize various endings -er -ing etc refers way get models down quickly safely instead losing theyd rather continuing upward rapidly rising thermal bubble hot air usually employing fuse timer-operated device allow trailing edge horizontal stabilizer pop-up high negative angle Conlinuedonpazge 180 rjyjp mi mirmrrntrrri 12001400 & 2000 MIL GIANT SCALE NICAD AMoam Pad ALai&ZLte (FULL*SIZE*PLANS 405 Regent Queen Skies$1350 RC Big sport biplane trainer fun Uses 40 60 power 4-ch RO Two sheets No 406Piper Comanche$825 CL Sport Scale uses twin 25s throttle control two shts No 407Boeing XF5B-1$425 RC Sport Scale /2A power 2 3-ch RC No 408Re-Volt-Er$650 RO Electric-power sport flier 2-ch RC 05 motor Gee Bee Model Y 40-powered AC stand-off scale ooe great old-rime racers Stilletto CL Slant model McDonald wInner 197619801982 FAt World Champs$275 Ole Reliable RC 70 version 36 old-timer REM cOntrols 19-25$425 Bloc Birds AC Ken Willards formation platte 4-oh 10$275 Crasirmaster CL Crash-proof trainer 2 sioesf 5-30 39-40$125 Gee Bee AC Granger Williams magrrificenf Model Z 40 engine$750 Cap 29 40-powered scale RC French aerobattc plane Low wing tail-dragger 2 sheets$750 Gee Bee Sr Sportster AC t/dscale Hatfhe 91 power Prototype spas 30 9 2t3sheets51175 MinI F16 AC Sarpolas 049 dacted fan sport flier 2-ch Balsa wings tail fuse structore$275 Pegasos AC Watsons giant onper sailplane featores flaps spoilers T-tail lOS wingspan5875 1930 Fleet Biplane AC Sport Scale 35 dO 4-cS Wingspan 56 1 6 scale Two sheets $825 Drake II AC Ken Willards flying boat 3-oh. 15-power Fly land wifh removable gear $375 Taylor Cob AC Don Stalls Schoolyard-Scale Odgs 2-3 CS Spans 55 iv350 Zephyr AC Small 2-oh glider hand-launch tow thermal slope soarng$200 Wasp VI PP Mike Stays Nato-winning Outdoor HLG$100 Onestep AC Trainer has onry forgiving Ifying guatifies 3-cS 10- 25 power$429 Merlyn AC Giant 155-in span Sailplane arms AC channels$750 Made Loner Rocket AC t/a-Scale spans 929 h-ce flaps 1 2 cv iv engine 8 Pieces FF Indoor bash B Robber-power confeot-winver W Sian Gorder$100 Sopercat AC Hafl-A Pylon Racer sport fIle Aileron elevator cvnf rot Foam wng$250 Seawaster AC Willards 40-size flying hoaf 4-cs Strap-sn gear landplane 2 shls $1199 Space ShoBle II AC Larger improved version 01 Hue 3lider 3-cS$550 CAP21 AC Giant-Soale 01 French aerohalic cras spans 71/4 5 Ouartra power 2 sheets r doc$1499 Strato-Streak AC Old-Timer versivo Garamis famous dl PP design 3A power 2-cs$500 Neighelon AC Low-wing fri-gear sportoter power 4-cs $500 Marissa PP Rubber-powered sportster Golden Age tradition$298 Snapahop Twin AC Workhorse utilitysport ship twin 35-45 4-5 ch Foam wings iSo 12 lbs 2 ohIo$1199 Aoroeoa AC SportlAerobalic flier 5d9-f 0 -power ases 2 3 ch$350 Wiegmaster CL Sport-Stunter t3A Profile fuselage sheet wings in-flaps$200 Mr Spook Ill AC Fly Sport Pylon Nov Sportsman Paoern sheet s 0 Uses 4-cs 25- 45 pwr$500 Monoboote SpA CL t2A Combat ship large ligst saper pedormer$275 Witch Hawk 500 FF Hot Class AB Gas compofifion ship 15-23 power Nats-arneleg desgn$375 Nany Flier PP Rubber-power sports flier captains Golden Age flavor Spans 26 rn$300 Callisto 92 AC Fly sleek Nats-wineing Sailplane rn AMA Mod Sf4 Unlimiled classes$750 Similar fliP AC boans famous design retains 50-so Pattern plune Retracts foam wing$550 Laser 200 AC Sport Scala replica championship Aerobatic flier Uses 40 power 4-h ch 2 shro$1075 Coach Mate PP CaIn low-wing sporloter CO-2 powem spans 3517 in$225 US Male AC Hage gentle-flying biplane trainer sport Spana 80 hO engine 3-cs Two ohIo$1450 LII Onickle CL Nats-wineing Scale Racer HOT 15 power$325 Orange Boa AC Lighlweight slope soarer gentle winds hand low Uses 2 AC channels$500 Cttlstopher AC Sport Scale paracsatistl Two-oh set hides torso moves arms sleet chute$425 Klood King AC Reduced modernized version 011938 design Old-Timer 2 3 ch$498 Rain Crow II PP High-pedormance Outdoor Hand Launched Glider 5 Sky Beby CL Racer Mouse Scale Plans show Coo Black Widow Spans 1 g3a in. V-tail$175 Lee-Richards PP blectric-powemed 020 Scale ring-wing Oldie$298 Bell YFM-1 Airacoda CL Sport Scale profile twiv pusher reed-valve 049s$225 Gee Bee R-1 AC HaSkes latest t/a-scale spans 75 in. weighs 15 IS flies 90 larger Four shIn no400$2225 Zephyr 1100 AC AMA Class B Sailplace 3-channel AC gear $675 Mi di-Slow CL Rat-Race-style Stunf trainer 30-power Profile$599 Royal Lancer PP Basic competition model AMA Class uses otandard-pedormance 1 5 engines$550 Ape PP Jumbo Rubber Scale Armstrong-Whilmvrth research biplane mid-Twenties$475 Cob Floatplane AC Sport Scale 049-t 0-size engines d-ch AC J-3 floats isa classic9950 Focke-Walt 199 CL Profile Scale power features unigae engine moont realism$200 3U~~ Circlenumbers plans wish toorder I 131193225239262282291299302307 310314326332343348354356358362 365368370371372374375376377378 I 379380382383385386388389390391 I I392393394395396397398399400401 I402403404405406407408 Please pnnt carefullyEnclosed $______ I_____ _____ _____ NAME __- _____________ ____ ___I STREET ________ ________ ________ ____ H __________ ____ _______ ___ __ U Ja______ -- _ -PrICe includes first-class postage Send check money order payable Model Aviation AMA 1810 Samuel Morse Dr Reaton VA 22090 attack causing aircraft go violent stall settle gently ground its fuselage remaining horizontal attitude wing course ts completely stalled tail surfaces hence controllable aspect Supernormal name authors have given flight fully-stalled wing Researchers Dynamic Engineering Inc giving serious consideration application supernormal flight SNF full-size aircraft An all-moving tail something close essential feature authors mention passive DT use rightly crediting Carl Goldberg mention having done free flight tests guess notion DT-ing real airplane clear ground isnt too far out wing loading low enough limit rate descent value landing gear human body can absorband alternative crash certain death perhaps 9999% survival probability isnt essential DT-ing way ground zero power mony applications SNF have considered Consider plane accidentally stalls low altitude conventional aircraft crash absolute certainty pilot could hit panic button would DT tail apply full power conceivably magnitude crash could substantially reducedperhaps near zeroand probability survival increasedperhaps nearly 100% Recall during descent tail surfaces would stalled Out pilot would have some degree control Perhaps specially-designed de vices could employed slow descent rate lower provided conventional wing deep stall Recovery spins NASA has demonstrated SNE controls effective spin recovery lightly-loaded general aviation aircraft nor nial spin characteristics spin recovery using SNF controls has demonstrated also heavily-loaded models fighter aircraft normally have flat fast-spinning characteristics make recovery very difficult use conventional control techniques SNF controls might used fuel-usage reduction during early phases landing V/STOL aircraft During final landing phases normal vectored thrust would applied authors have paid particular attention applications lightweight fighter LWF air craft Some applications SNF studied include sudden deceleration causing attacking aircraft overshoot sudden turns SNF condition tnoderate speeds enhanced aiming pointing weapons low speeds authors also mention SNF controls could allow certain aircraft fly nose up out loss altitude very low forward speed dont recall certain WW fighters could moping along under full power perhaps 15 mph low-speed engines big props giving good thrust low speeds doesnt seem impossible Can someone clue Well anyhow sort seems like something someone should taking good hard look its good know DEl doing Hope dont run out mieney Tip month Bob Womack observes next time have apply rubber lube motor put rubber sandwich bag poly ethylene paper put required amount lube close bag rub bag between hands presto ly lubed motor no sticky greasy palms Im sorry dont know print-source item Rob Meuser 420) Greof-v St Ooklorld CA 95619 180 Model Aviation No 131 No 193 No 225 No 239 No 262 No 282 No 291 No 299 No 302 No 307 No 310 No 314 No 326 No 332 No 343 No 249 No 354 No 356 No 358 No 362 No 365 No399 No 370 No 371 No 372 No 374 No 375 No 376 No 377 No 378 No 379 No 380 No 392 No 293 No 385 No 386 No 388 No 389 No 390 No 391 No362 No 393 No 394 No399 No399 No 397 No 399 No 399 No 400 No491 No 402 No 493 No 404 D c\ Ca CC C aol 100 aol C to-C C c54 olE am Eg CC C
Edition: Model Aviation - 1983/05
Page Numbers: 76, 77, 175, 176, 180
Free Flight DURA TION Bob Meuser THE RULES AMA Cargo event check em out theyre AMA rule book pretty simple Basically small-field event dont come smaller Using Cox 020 engine pair OlOs main idea see much gross weight can carry least 40 sec maximum 20-sec engine run wingspan restriction 48 Clearly arent going have problem keeping model sight Back March 1977 column presented sketch Roman Ramirezs record-breaking model carried three-flight-total 76 oz Somewhere along line upped 82 oz 1979according August 1980 columnhe stuck up 8342 oz might have lost track has meanwhile last September cpped totally ridiculous figure 10021 oz about two lb per flight Try local 020 models would scarcely get off ground let alone make flight times twice engine-run times An ultra-sophisticated model maybe winglets super computer-designed airfoil Nope same old square-tip turkey hes flying along good old NACA 6409 airfoil out Twenties Thirties simple model well-flown beats usual Tissue tips Taking note several items regard iog virtues various covering tissues have appeared column recent months Al Lidberg supplies following information 1 agree real Japanese tissue nice stuff HAA/ Pgc44 CYL /A1ej 7 0 2 4 6 i 0/z4F6z8 Ij 8 47 /h LAO 8A4 AA/ee-PAAT sv2e / 3/ 3233 34 35 36 II rACr 5 OA/ a7/CA/ i, b4EP7/C/-i / Z &5~ c26C ~7L Al ~V ~egs-- i~ h7e %//4Ar44ej 4P0 LAD - ee 77e-g A-IA 7eAL A44 e7c9A/47sqj/ eA/ 7 ~A4 94 4ACE% LEi-AL. 563 --/777f42S k7/C %&AZ Bob Dittmers steelyard scalemake under dollar wooden yardstick coat hanger some small plastic containers some BBs Capacity depends sliding weight 6 lb work theres workable alternative Art supply stores some hobby shops sell tissue artsy-craftsy projects such flowers etc stuff cheap lOg-15g per sheet comes about two dozen colors black included Ive used golden yellow red couple models covering tissue good results 'None stuff colorfast water needs use very line mist shrinking use atrbrush avoid large drops make big blot marks 'For black trim strips numbers tissue works great can stuck down thinner just like real tissue Ive also used khaki brown Sperry Messenger recently appeared MAN brown pretty terrible though has little resistance tears holesfar worse thing Ive ever used color just right Dont know color tissue seems have different qualities Some black brown have shine side like good tissue dont work well covering Some red yel low blue dull both sides yet work well Mike Stoy has won Indoor HL Glider event US FF Champs twice flights around 33 sec under 20-ft ceiling Note large model size tiny tail-teath ers until recently didnt know would work having never tried theml fi Ds4 FL4H7 47 AVV P47w A441/MOAI DURA7/A \ /\ / Ix 5A5 XI\ ______ K -O2 4t \- oa sq __________ C c 75/1552 TZeCi #3 • R 7W5 UV4/A1/T5CM4v55/U 8LM &I 5 FPPL/7Cl4AIP$ ________ ________ _______ _______ _______ inches Will Team Williams Unlimited Mulvihill model able beat Bob White Meuser claims drawn its rugged enough everyday contest use-but special-purpose design modelers using plane have own favorite prop designs 76 Model Aviation expensive tissue Anyhow black craft tissue good trim ming sounds lot practical dyeing own price dime per sheet fact its easy find make worth using New gas-power event New competition events come go Most die young after few tries some go decades within particular club some become perhaps detriment ficial AMA eventsOften goal increase interest Free Flight competition introducing events will appeal newcomers takes whole lot accomplish goal mere introduction new events sometimes new event helps tentative rules several new events being kicked around San Diego area SD Forty-Niner Gas I Class limited monoplanes 2 No dimension including engine D/T ap paratus exceed 48 inches 3 Minimum weight excluding fuel 172 ozs 490 gin 4 Powerplant must stock Cox single-bypass Testors reed valve engine 049-051 cu maximum displacement 5 No clockwork engine timers variablesurface geometry permitted 6 Fuse-type clockwork D/T timers allowed 7 CD furnish fuel nominal 15% nitro methane 8 120-second flight maximum CD may shorten lengthen according site environ ment 9 30-second flight minimum Unlimited tempts allowed complete two official flights 10 Minimum engine run 10 sec No maximum engine run II Fuel tank capacity may restricted addi tion BBs etc 12 Flight scoring will use formula Right Time sec x 100Official flight score Engine-run Time* *time nearest I/S sec 13 Highest score two official flights deter mines winner 14 15% bonus added total score unas sisted two-main-gear-wheel ROG launches 15 Mass launches settle tied scores Formula applies 16 Fuselage must contain theoretical box 2 X 3 x 7 Swiped Scale Staffel newsletter slightly doctored goal event encourage easilybuilt rugged inexpensive models rules seem accomplish However wonder about prohibition clockwork engine timers Tomy timers can made inexpensively Presumably formula takes care degree Flight time seconds vague nearest whole second drop fractions round down Furthermore impos sible measure engine run nearest I/S second mechanical stopwatch needle doesnt snap over until 1/5-second has passed digital stopwatch could give different result could important dividing engine-run time Human errors inevitable timing engine runs will drastically affect scores Clearly way win 120-sec max whatever CD sets going tum out require ROG takeoff slicing engine run close possible 10-sec minimum So guy has time money develop good non-clockwork engine timer has built-in advantage scarcely line what seem May 1983 77 Nifty Old-Timer Rubber model Pacific Ace Sherman Gillespie kit sold 25* 1938 once again available CPM Products 722 Lennox Yreka CA 96097 $495 plus Si post Continued page 175 Dale Mateer Dayton OH logged 10 maxes Class Cox 15-pow ered French Wren got him 3rd place Central Indiana Aero modelers meet last fall Harry Murphy photo Doc Anderson fiberglass prop used Dick Smiths K&B-powered Satellite 788 beautiful pale blue color also has zero pitch tips designed increase pitch rpm model speed increase Excep tional performance claimed Harry Murphy photo check model alignment Support model indicated center gravity does balance properly shift equipment add ballast necessary Pick nice calm evening join quiet revolution Youll find Re-Volters flight characteristics slow gentle get trouble model will recover its owngiven enough altitude release control sticks makes acceptable landings unassisted adequate room Run silent run high FF Duration/Meuser Continued page 77 goals Nit-picking perhaps rules ever bad have way becoming cast concrete therefore awfully hard change Send SASE three-page list lay long trip merely illustrate good rules difficult designand probably have found frac tion loopholes However basic structure event seems have lot merit will interesting see what comes Unlim-Mulvi again January issue dis cussed annual event held Taft over Memorial Day weekend US FF Champs mentioning Loren Williams co conspirators hot after Bob Whites tailfeathers him being perennial winner crazy event promised Id have details Team Williams approach soon soon takes around call attention rules event published October 1982 column Crazy event . flight dawn maximum duration flight Pure Free Flight its best dont come no crazier So heres three-view Ive crammed detail could onto few square inches available leaves lot untold wamed machine timid weak designed purpose take Oakland Cloud Dusters perpetual trophy away Bob White contest-after-contest Mulvihill events machine although wood sizes increased next larger commercially-available sizes wood stout heart used critical members such spars longerons design would least good others such purposes n example tuselage weighing mere 10 grams uncovered must cope pent-up emotions some seven times its own weight impetuous unpredictable Pirelli rubber having potential en ergy capable lifting itself height upwards 3200 feet present Team Williams consists Loren Williams himself Andy Faykun Dick Siefried Mike Mulligan Mik Mikelson things ex-Indoor World Champ Bud Romak Total weight models using tissue covering peddled Oldtimer Models will 70 grams less Motors consisting 20 22 strands /8-inch Pirelli equivalent lot slack will weigh less 70 grams favoring low sinking speed resulting minimum overall weight Props three-view carefully avoids issue up grabs everyone doing own thing present Larabee Schwartzbach whatever Book reviews regurgitated February column talked about Bob Stalicks book air foils stated two bucks coordinates 45 airfoils biggest boggin town reader Californias northemmost county egon close California-Seattle boundary wrote inform about 60 short fact book contains 105 airfoils makes betta boggin mere $250 including postage gets Write Stalick 5066 Picadilly Circle Albany OR 97321 Making inexpensive weighing scale start two-bit wooden yardstick couple coat hangers paper clips snap-top plastic containers Twenty minutes later end up scale equal costing upwards 50 bucks bad fringe benefit doesnt take up workbench space flip side ol lady might appreciate screw eye dining room ceiling generic name such things cared steelyard inde pendent material made made wood nor properly termed woodyard following material article Bob Dittmer appeared SAM Speaks times have wished scale could use weigh new gas job plans simple easy-to-make beam balance accurate could ask materials required yardstick buckshot required coat hanger large paper clip two snap-top plastic containers I-in dia x 2-in long 2-in dia x 2-in Best Custom Screen Sportswear _______Our Latest_______ Design rxor 7ACU2E Servo8RivD Failure. 47 Glitched s. out oj 309 s.d trrr Tao Cain - Power ZJ 7~j9 Lines O Leo0 NWres ENGINE OVEINESiEi coo Ciii disoriented TOO MUCH BEER iust some avaition designs available top quality line sportswear designs direct printno heat transferl Gee See. P40 Warhawks. Fokker D Vii. P38. Christen Eagle. Pitis Special bria AT-S. P47. Steerman. Curtis Jenny. Corsair. its flat doesnt move can print favorite design dont see what want call write Coaches shirts$1295 Jackets$2195 Ladies tops$995 Shorts-$595 Saseball shirtsS895 SweatshirosS1195 Football iersevsS895 TShirts$695 Wide choice colors sizesl Send SASE illustrated brochure Name Address CityStateZip DesignSize Color MD residents add 5% tax now accept Master CardlVisa TO ORDER Send check money order ladd 10% postagelhandlingi OR CALL COLLECT after 4pm write Phase Art 17102 Earlham Ct Upper Marlboro MD 20772 130116275118 May1983 175 N 8RYPCECN Y HOLD TI-IE BOX FOP ME WHILE GET MY BINOCuLPPS NT 5EE THE PLRNL PNYMORE 1131 NW 45 SIreel Ft Lauderdale FL 33309 13051 491-6115 ENGINEERING THE LANDING GEAR PEOPLE Tired kil landieg Heart dont lit feer biggie properif 0 & 0 Eaglneerieg can tale feur preblemsi * Custom bailt needs & specs guaranteed le Ill * Otnig & durable 10 withstand toughest landing * 0 & 0 Engineering gear will wtrk & keep biggie flying * In stock replaceetest gear let popular models Byrne Pills Christen Eagle CAP 21 Balsa USA J-3 CUB Air Tech Pawnee Eagle Nesee Big Slick Champ Citabrta B & II models Snapper Stinger Snapper Ten FEATURES o completely assembled connector choice o factory fresh cells built specifications SAFT AMERICA 0 vibration proof construction int weld between cells o hi-rate charge capability charge 480 mil rate continuous cell damage o each pack completely cycled prior shipment o available flat square stick configuration unique battery compartments weight/balance considerations o extra long leads available special applications o custom designs dual airborne back-up systems o hi-rate UL approved charger available-charge rate 120 mil o individual cells solder tabs 12 14 20 Ah capacities o 1200 1400 airborne packs weigh 72 oz complete 0 2000 airborne packs weigh 115 oz complete 4 6 cell 12 14 Ah race car electric boat packs 54 Qr m 1200& 14002000 // See Local Hobby Shop Dealer first Lakes Radio Control Inc Southamptom z Livonia MI 48152 E MFGRS& DISTRIBuTORS QUALITY RIC PRODUCTS & COMPONENTS SEND $100 FOR COMPLETE CATALOG OF ALL BATTERY SYSTEMS AND OTHER PRODUCTS AVAILABLE FROM GLR/C REFUNDABLE ON FIRST ORDER 9 Hoiy H Wng Span--Sal Wing Area--569 Sq SENSOAR glider HOBBY HORN Eaclusive HOBBY HORN Kit SENSOAR Glide- kit high quality kit Maohne cut S sanded parts Select qualrty balsa spruce Oetailed plans written instructIons THERMAL SLOPE 05 ELECTRIC POWER VALUE PRICED 51500 E OLD I7R tOflO bull axi Partial Kits P & W Semi-Kits Combined full atripwood plan Now mci Wire Window etc Mat Note may purchased just aemi hits pIanowrite catt priceo 1936 Bueeaneer84Stl 1938 Clipper MK 172-$3t 1937 Oatlaare Sptser1t8$61 194t Sanger4t $27 1939 Meroory72$t6 1931 Miss Amerieoi4$59 1941 Playboy Jr54-$29 1941 Ptoyboy SrBt$4t 1938 Power House94-143 1940 Saiiptaoe-78-- $74 1940 Long-tt-$29 1938 Trenton Terror-72$32 1939 Zipper54-$48 1939 Kordo Wakefield-44- $17 MIO4IAP MODEL CD lemi-Isito Combined in/strip 1936 Plying Qsiolser94$49 1$37QuokerPlash-07$39 1937 Long Cabin78542 1937 Air Chief61945 STRUCKS 1940 70 Span 035 Sq SEMI-KIT Plan lncl-$33S0 NUW UIUI Combo Pull Kit $6300 SCALE LAN5 nd ORAWINGS SSt HEINKEL HE 1000 02 01s $1000 SHIPPINO AND HANOLINO 34 Page CATALOGUE Up $800 add $150 $200 PP/tot Class $801 $200t add $225 copy will sent $2001 $4500 odd $3t0 free-when requested $45tt $7tt0 odd $350 order over $70tt wdd $490 BBY HORN CA Addressees Odd 0% tOOt by specialties00 Send 510 VisafMC0*Exp15173 Moran Streel [At Cheek allow up 30 Bow 2212 days check clearanceWestminster Ca 92683 COOEsact Charges 710 t938311 Hdl tCash OnlyltAll UPS 710 8951203 long 'Construethon starts ssith drilling Iwo /o-iO dia holes yardstick Bend Ceiling hanger load hook hanger wire Form sliding-weieht hottk large paper clip use some coat hanger wire plastic contaIners used hold shot weight can drill 332-in dja hole through slip wire right through balance com pensator hitok must just balance weight beam lllt/itIlll slidine balance installed balanee weieht its hook mull weigh exactly pound have need weigh ships over 515 ptunds make-up two-pound balance weight assembls beam balance will weigh up twelve pounds As illustrated scale weighs n3aximum LIf six lb. 1/16-in representing fifth stz probably isnt accurate because fric tion pivots such accuracy would re quire hole spacing accurate about 0012 youll settle something like half-oc accuracy plenty good model three- six-lb range should no problem sensitivity can creased expense maximum weight decreasing size sliding balance weight half-oz weight place one-oc weight gives / ois. lOin lb capacity three lb suppose could really get carried away use aluminum yardstick perhaps sharpen parts coathanger hooks go through drilled holesbut much perfection really need About bloody props response lead item January issue concerning gen tlemanly art whittling Ken Simpson Cedar burg WI sends following suggestion 176 Model Aviation better solution using adhesive tape buy rubber finger kind used sorting papers come various sizes avail able office supply stores Get snug enough stay loose enough have some move ment slight amount play allows rubber slip knife blade hits rubber fingerdont get cut recently ran article about backwoodsy guy whittles lot wooden spoons photo him stripped waist whittling away knife directed straight toward bare belly hell bent hara-kiri trip trick arms locked hard against sides whennot ifthe blade slipped wouldnt sail forth far enough cive him unscheduled belly button worse Controllable supernormal flight following based material appeared article Automotive Engineering December 1982 turn based Society Automotive Engi neers paper 821469 Flight Supernormal Atti tudes Thomas H Strom William Alford Jr Dynamic Engineering Inc DEl Thanks Joseph Ziomek calling article MAs attention Can imagine DT-ing full-size Boeing 747 ll thats almost what guys talking about readers familiar modern competition Free Flight DT stands dethermalize various endings -er -ing etc refers way get models down quickly safely instead losing theyd rather continuing upward rapidly rising thermal bubble hot air usually employing fuse timer-operated device allow trailing edge horizontal stabilizer pop-up high negative angle Conlinuedonpazge 180 rjyjp mi mirmrrntrrri 12001400 & 2000 MIL GIANT SCALE NICAD AMoam Pad ALai&ZLte (FULL*SIZE*PLANS 405 Regent Queen Skies$1350 RC Big sport biplane trainer fun Uses 40 60 power 4-ch RO Two sheets No 406Piper Comanche$825 CL Sport Scale uses twin 25s throttle control two shts No 407Boeing XF5B-1$425 RC Sport Scale /2A power 2 3-ch RC No 408Re-Volt-Er$650 RO Electric-power sport flier 2-ch RC 05 motor Gee Bee Model Y 40-powered AC stand-off scale ooe great old-rime racers Stilletto CL Slant model McDonald wInner 197619801982 FAt World Champs$275 Ole Reliable RC 70 version 36 old-timer REM cOntrols 19-25$425 Bloc Birds AC Ken Willards formation platte 4-oh 10$275 Crasirmaster CL Crash-proof trainer 2 sioesf 5-30 39-40$125 Gee Bee AC Granger Williams magrrificenf Model Z 40 engine$750 Cap 29 40-powered scale RC French aerobattc plane Low wing tail-dragger 2 sheets$750 Gee Bee Sr Sportster AC t/dscale Hatfhe 91 power Prototype spas 30 9 2t3sheets51175 MinI F16 AC Sarpolas 049 dacted fan sport flier 2-ch Balsa wings tail fuse structore$275 Pegasos AC Watsons giant onper sailplane featores flaps spoilers T-tail lOS wingspan5875 1930 Fleet Biplane AC Sport Scale 35 dO 4-cS Wingspan 56 1 6 scale Two sheets $825 Drake II AC Ken Willards flying boat 3-oh. 15-power Fly land wifh removable gear $375 Taylor Cob AC Don Stalls Schoolyard-Scale Odgs 2-3 CS Spans 55 iv350 Zephyr AC Small 2-oh glider hand-launch tow thermal slope soarng$200 Wasp VI PP Mike Stays Nato-winning Outdoor HLG$100 Onestep AC Trainer has onry forgiving Ifying guatifies 3-cS 10- 25 power$429 Merlyn AC Giant 155-in span Sailplane arms AC channels$750 Made Loner Rocket AC t/a-Scale spans 929 h-ce flaps 1 2 cv iv engine 8 Pieces FF Indoor bash B Robber-power confeot-winver W Sian Gorder$100 Sopercat AC Hafl-A Pylon Racer sport fIle Aileron elevator cvnf rot Foam wng$250 Seawaster AC Willards 40-size flying hoaf 4-cs Strap-sn gear landplane 2 shls $1199 Space ShoBle II AC Larger improved version 01 Hue 3lider 3-cS$550 CAP21 AC Giant-Soale 01 French aerohalic cras spans 71/4 5 Ouartra power 2 sheets r doc$1499 Strato-Streak AC Old-Timer versivo Garamis famous dl PP design 3A power 2-cs$500 Neighelon AC Low-wing fri-gear sportoter power 4-cs $500 Marissa PP Rubber-powered sportster Golden Age tradition$298 Snapahop Twin AC Workhorse utilitysport ship twin 35-45 4-5 ch Foam wings iSo 12 lbs 2 ohIo$1199 Aoroeoa AC SportlAerobalic flier 5d9-f 0 -power ases 2 3 ch$350 Wiegmaster CL Sport-Stunter t3A Profile fuselage sheet wings in-flaps$200 Mr Spook Ill AC Fly Sport Pylon Nov Sportsman Paoern sheet s 0 Uses 4-cs 25- 45 pwr$500 Monoboote SpA CL t2A Combat ship large ligst saper pedormer$275 Witch Hawk 500 FF Hot Class AB Gas compofifion ship 15-23 power Nats-arneleg desgn$375 Nany Flier PP Rubber-power sports flier captains Golden Age flavor Spans 26 rn$300 Callisto 92 AC Fly sleek Nats-wineing Sailplane rn AMA Mod Sf4 Unlimiled classes$750 Similar fliP AC boans famous design retains 50-so Pattern plune Retracts foam wing$550 Laser 200 AC Sport Scala replica championship Aerobatic flier Uses 40 power 4-h ch 2 shro$1075 Coach Mate PP CaIn low-wing sporloter CO-2 powem spans 3517 in$225 US Male AC Hage gentle-flying biplane trainer sport Spana 80 hO engine 3-cs Two ohIo$1450 LII Onickle CL Nats-wineing Scale Racer HOT 15 power$325 Orange Boa AC Lighlweight slope soarer gentle winds hand low Uses 2 AC channels$500 Cttlstopher AC Sport Scale paracsatistl Two-oh set hides torso moves arms sleet chute$425 Klood King AC Reduced modernized version 011938 design Old-Timer 2 3 ch$498 Rain Crow II PP High-pedormance Outdoor Hand Launched Glider 5 Sky Beby CL Racer Mouse Scale Plans show Coo Black Widow Spans 1 g3a in. V-tail$175 Lee-Richards PP blectric-powemed 020 Scale ring-wing Oldie$298 Bell YFM-1 Airacoda CL Sport Scale profile twiv pusher reed-valve 049s$225 Gee Bee R-1 AC HaSkes latest t/a-scale spans 75 in. weighs 15 IS flies 90 larger Four shIn no400$2225 Zephyr 1100 AC AMA Class B Sailplace 3-channel AC gear $675 Mi di-Slow CL Rat-Race-style Stunf trainer 30-power Profile$599 Royal Lancer PP Basic competition model AMA Class uses otandard-pedormance 1 5 engines$550 Ape PP Jumbo Rubber Scale Armstrong-Whilmvrth research biplane mid-Twenties$475 Cob Floatplane AC Sport Scale 049-t 0-size engines d-ch AC J-3 floats isa classic9950 Focke-Walt 199 CL Profile Scale power features unigae engine moont realism$200 3U~~ Circlenumbers plans wish toorder I 131193225239262282291299302307 310314326332343348354356358362 365368370371372374375376377378 I 379380382383385386388389390391 I I392393394395396397398399400401 I402403404405406407408 Please pnnt carefullyEnclosed $______ I_____ _____ _____ NAME __- _____________ ____ ___I STREET ________ ________ ________ ____ H __________ ____ _______ ___ __ U Ja______ -- _ -PrICe includes first-class postage Send check money order payable Model Aviation AMA 1810 Samuel Morse Dr Reaton VA 22090 attack causing aircraft go violent stall settle gently ground its fuselage remaining horizontal attitude wing course ts completely stalled tail surfaces hence controllable aspect Supernormal name authors have given flight fully-stalled wing Researchers Dynamic Engineering Inc giving serious consideration application supernormal flight SNF full-size aircraft An all-moving tail something close essential feature authors mention passive DT use rightly crediting Carl Goldberg mention having done free flight tests guess notion DT-ing real airplane clear ground isnt too far out wing loading low enough limit rate descent value landing gear human body can absorband alternative crash certain death perhaps 9999% survival probability isnt essential DT-ing way ground zero power mony applications SNF have considered Consider plane accidentally stalls low altitude conventional aircraft crash absolute certainty pilot could hit panic button would DT tail apply full power conceivably magnitude crash could substantially reducedperhaps near zeroand probability survival increasedperhaps nearly 100% Recall during descent tail surfaces would stalled Out pilot would have some degree control Perhaps specially-designed de vices could employed slow descent rate lower provided conventional wing deep stall Recovery spins NASA has demonstrated SNE controls effective spin recovery lightly-loaded general aviation aircraft nor nial spin characteristics spin recovery using SNF controls has demonstrated also heavily-loaded models fighter aircraft normally have flat fast-spinning characteristics make recovery very difficult use conventional control techniques SNF controls might used fuel-usage reduction during early phases landing V/STOL aircraft During final landing phases normal vectored thrust would applied authors have paid particular attention applications lightweight fighter LWF air craft Some applications SNF studied include sudden deceleration causing attacking aircraft overshoot sudden turns SNF condition tnoderate speeds enhanced aiming pointing weapons low speeds authors also mention SNF controls could allow certain aircraft fly nose up out loss altitude very low forward speed dont recall certain WW fighters could moping along under full power perhaps 15 mph low-speed engines big props giving good thrust low speeds doesnt seem impossible Can someone clue Well anyhow sort seems like something someone should taking good hard look its good know DEl doing Hope dont run out mieney Tip month Bob Womack observes next time have apply rubber lube motor put rubber sandwich bag poly ethylene paper put required amount lube close bag rub bag between hands presto ly lubed motor no sticky greasy palms Im sorry dont know print-source item Rob Meuser 420) Greof-v St Ooklorld CA 95619 180 Model Aviation No 131 No 193 No 225 No 239 No 262 No 282 No 291 No 299 No 302 No 307 No 310 No 314 No 326 No 332 No 343 No 249 No 354 No 356 No 358 No 362 No 365 No399 No 370 No 371 No 372 No 374 No 375 No 376 No 377 No 378 No 379 No 380 No 392 No 293 No 385 No 386 No 388 No 389 No 390 No 391 No362 No 393 No 394 No399 No399 No 397 No 399 No 399 No 400 No491 No 402 No 493 No 404 D c\ Ca CC C aol 100 aol C to-C C c54 olE am Eg CC C