DURATION Bob Meuser THE venerable S-hook re-re-visited days yore S-hook S-hook simply piece music wire bent shape S served adequately link between rubber motor either propshaft rear hook its problems Invariably thing would crawl around end up wasnt supposed Hundreds solutions have developed over past half century new ones keep popping up no best solution what might best person might best person another set skills tools goals three variations theme shown sketch come French magazine Modelle Reduit dA non involve block whittled cussed shape ajewelers saw tile perhaps milling machine three have some sort universal joint action lower sketch however would appear better effect would obtained drilling hole propshaft wire 90 degrees direction shown Any three hooks right will couple three propshaft fitments left upper incorporates single bobbin pretty tough beat hard make lathe bottom bent-wire affair incorporates extra loop wire pin useful transferring rubber motor winder prop after motor wound bobbin has central hole same job device middle has no provision holding pin perhaps could stuck through loop just forward motor Coupes smaller models wont have bother holding pin have reasonably strong hands can manage avoid getting rubber lube over Ornitbopter Except few occasions have offered freebies some sortthose always get huge response-the photo ornithopter model May issue received greatest number reader response have ever received about 800 items have published just crummy snapshot Three-views presented want gist thing drew up full-size plans fool thing asked early game got free Anyone else wants will have puny up buck send NFFS Plans Publications Lynn Terzian 4858 Moorpark Ave San Jose CA 95129 model OK stable easy adjust no tricks sort ofstand-off scale models seen published old magazines particu larly flown Goldberg Lidgard other Aeronuts late thirties its performance220 20-foot ceilingisnt terrific could about 300 higher ceiling doesnt light candle fourminute-plus scores racked up early days worked playing doesnt hack crack 430 Ill really let know about model rugged enough fly outdoors has done its required 430 outdoors isnt indoors Still five official national records out five tries isnt too shabby Cargo Record Cargo few outdoor free flight events thermal-finding skill significant factor So always thrill see continued progress pure event such Cargo would have thought theyd have gone about far could go decade ago Roman Ramirez topped previous record 82 ounces 1979 performance scoring 8342 ounces score total gross weight model three official flights wingspan model cannot exceed 48 engine dis placement limited 025 cu pretty 52 Model Aviation * I- Roman Ramirez recordsetting Cargo model Simple clean conventional Trimming dogged determination little bit luck paid oft Models 3-flight total lift 8342 oz TD 02 power Much insight type flying Romans journal excerpted column much nails down Cox ID 020 matched pair Cox 010 engines no longer produced engine run limited 15 sec anything over 40 sec official flight Peak altitude obtained such flights usually about 20 ft Romans log-book record attempt rather amusing ght 2 39 sec lands bush still 2 ft above ground Flight 3 398 sec lands bushes 3-4 ft ground Flight 4 49 sec bounces over sky encounters thermal Flight 5 42 sec perfect ept landing gear destroyed. Replaced landing gear model does seem same 18-sec engine run glow head loose. ht 8 last 402 sec Just plain lucky Model makes abrupt right turn takes off downwind Does lawnmower act climbs through foot-high weeds what seems like insufficient altitude e model doesnt appear anything special simple rectangular wing plain old NACA 6409 airfoil no winglets other gimmicks clean clean Nevertheless best country perhaps universe event intensely competitive fora dedicated few free-fighters Drawings model presented March 1977 issue ModelAviation model same except CG has shifted back bit Folders flappers other such wonderous things Upon re-reading Gieskiengs letter realized scheme shown sketch Gieskiengs Folly #89 shouldnt blamed him rather some un named Canadian Bill G met World Continued nape 121 Mart d cop Jr trophies Nats FAI PowermodeldevelopmentmarchesonThisistheexhaustextraCtOr decade ago tires up FAI Power model electric starter Meuser Roger Simpsons model Very neat thrust Meuser photo photo August 198053 space motion car generated electrical static discharge within can either fuel sloshing can friction against metal object Whatever cause good idea discard old fuel has stored partially-full containers long periods Also fuel cans should transported cardboard box large enough keep can falling over rubbing against other objects rag under can further insurance against spread spilled fuel Jack George Any readers care comment what its worth bet hot Florida sun caused fuel vaporize till trunk fumes Possibly electrical fault cars tail light turn signal wiring produced spark resulted explosion fortunate car equipped fire extinguisher car similarly equipped Have safe month John Presroz 7012 Elvira Court Falls Church VA 22042 FF Duration/Meuser continued page 53 Champs real Gieskiengs Folly #89 follows wings hollow moldings silicone rubber During climb wings rolled up like New Years Eve things just Climb Transition tid Front views shown c1ESFIGt2cS POLIAJ * Stan Stoy watch out Bill Geiskieng has two new folder/flapper-type concepts other column before engine cuts exhaust directed wing cavities brrr-ap. out go glide mode position practical details either schemes have totally solved felt should warn OK Perryman move Rather good airfoil Having already presented what editor referred Worlds Best Low Speed Airfoil April issue what am supposed encore gh act follow item about Lissaman airfoil used Gossamer Albatross mentioned Id present Peter Allnutts airfoils next month Peters material got buried twixt pages old NFFS Sympo report floated surface again recently airfoil shown series representing combined efforts Brian Egglestone deHavilland Canada Dr David Surry University Western Ontario members Toronto FAI Group Earlier work appeared Name Address CityStateZip II IAdd $2 shipping N Y State residents add tax Dealer inquiries invited II II II IC Master Charge C VisaI] Expiration DateI ICard NoI I0 Check enclosed $I SignatureI 1 August 1980 1 21 INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYSSWAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225FILLED NYLON 1519235FOR STRENGTH 2025245AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060 325 Mounting 6070325 Interchangeable Kraft OEM BULK INQUIRES INVITED SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUODLESTON CINCINNATI OHIO 45235 AREA CODE 513 igi 8744 Flat bottom nose gear HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS Still hobby dee/en G - CHECK THESE FEATURES twist its locked 2Push twst Its off 3Will come f under heavy engine vibration 4Will short out 5Positive spring contact 630 Inch lead wire & DISTRIBUTOR IN iIOIC INVITED Still Using bid Fashioned Wing Hinges G0G will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENTt450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 1/8 OR LARGE 1/4 GAPLESS IIINOS SLOTTER 40Simplifies installation Gapless Hinges Makes Slols 4 Sizes 0/ Balsa 7" // E S195 EASY TO INSTALL - 2 3 Send Free Info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 IC/IT 1/4 DEEP SLIT ALONG THE FULL LENGTH OF THE MATRIG SURFACES RISTALL ILl/NEUSE STRAIGHT PIN 10 MAKE SMALL IIOLE LYRRY RICH ON SODRIP CYANOALPITLATE GLLE IN HOLESCARtLARY AC/bR MLL CARRY GLUE ALONG ENTIRE IORIT FOR ADDITIONAL SEDJRITY RISERT SMALL PIN EVERY FEW INCHES CUT OFF FLUSH FILL AND SAND AS NEEDED FOR FINISH/NC 1978 NFFS Symposium Report New Family High-Lift Airfoils Low Reynolds Number Peter J Allnutt Computer #9 airfoil used Peters PA3O . has uniform roof-top pressure region followed concave separation-free pressure recovery region having fully turbulent flow section along previous sections reflexed trailing edge showed very good performance However two very unusual characteristics pull exerted model being towed incredibly high ideal calm air though models required very large decalage Some 7 8 degrees Maybe isnt surprising wing doesnt stall until around 12 15 degrees Peter uses shirring thread turbulator con sisting fine strip rubber encased spiral wrapping fine thread material available stores selling cloth yardage sewing mate rials thread vibrates wind leaving swath turbulent air behind set drawing Peters foil its stalling angle sketched what thought realistic streamlines appeared streamline passing through turbulator would pass far above wing asked Peter about Peter replied may have good point However have yet time try variety locations turb put shown article Max Hacklinger May 1954 Aero Modeller. figured knew what doing states failing former models low mounting turbulator ght measure ments showed 50 angle attack turbulator creates drag 90 turbu lator improves performance substantially possible much work turbs higher performances will obtained will take work vertical positioning turbulator critical recall once watching Hank Cole testing old model Hanks model used full-span nylon monofilament turb shirring thread turning characteristics model changed severely simply didnt want turn direction Hank wanted Hank thought best let have its own way about re-rig auto-rudder opposite turn noticed wire supports turb gotten bent little putting turb wrong position After turb support wire straightened model circled nicely Hank also model turbulator wing half making wing stall later other gave model nice recovery Hank zoomed off towline thermal little Chance disastrous complete stall Incidentally dashed lines airfoil drawing represent plywood supports turb less likely become bent wire ones Next month well present another Peters airfoils better some respects Computer #9 Aeromodeller Annual bites dust First published late forties fine free-flight intensive book-type annual no join ranks other annuals no Air Trails Annual Model Airplane News Annual alas Frank Zaics Model Aero nautic Yearbooks intolerably high production costs small books paperback form Annual has past four years made continued production impractical another annual publication will take its place Published magazine format same size Aeromodeller magazine new publication called Model Planes Review price USA will $3 scheduled on-sale date June 20 Perhaps bit 122 Model Aviation PRICE 3 ft $250 Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions use tanks diesel tuei Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions GOLDN PUSH RODS -i / push rods beat clog Pat ented splines inner rod cut right through mess Temperature compen sated prevent 1 elongation Good gold Insist Gold-N-Rod Claus included WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISYILLE ROAO e WILLOW GROVE PA 10090 215 659-3900 later Colonies Bob Meuser 4200 Gregory St Oakland CA 94619 RC Old-Timers/Mathews continued page 35 white glued framework combines advantages silk heat shrink materials reasonable cost strongly recommend technique model aircraft application old-timer ultra-modern pleased blame blame monkeys Flamingo contacted Roger Hammer order embellish presentation Flamingo graciously sent highly interesting letter shall quote modeling background involved phases start ing solid scale progressing through flying scale outdoor twin pushers cabin stick hand launch catapult gliders speed recall about 50 mph Junior Birdman Contest 1936 Central Park GET ORGANIZED Hee s set 4 sturdy fries hat holds over 4 years favorite 8 magazines 4 MAG FILES $495 send Sd 95 plus $1 00 postage handling 0GM INDUSTRIES PO BOX 388-K DOVER NH 03820 riends AERO CLUB OF ISRAEL Join us support national & international $events Israeli modelers Write 14702 29th Ave o Flushing NY 11354 clue also active indoor microfilm models entering East Coast contests Detroit Nationals about 1937 1 won Junior Birdman Indoor Championships NY area entitled free trip Los Angeles compete JB National ChainAugust 1980 123 #1 Line Winners F Make Glow ell 1/4A Y4 Scale Power Usable Power Greater Economy Send 40 & Stamped Addressed Envelope Dealer Inquiry Invited [Davis Diesel Development Inc 141 Milford CT 06460 GEE Attractive Black 4Yellow Sizes- SM L E-Z T-SHIRT Send $650 Post S Fundol THE PRINT SHOP Renacti Sc Titande Bay Oat P7B5M6 Canada Benjy Schneider displays dads beautiful Hammers Flamingo appeared Jascos iY38 catalog future kit Alas never produced because Nazi pressure Zaic family
Edition: Model Aviation - 1980/08
Page Numbers: 52, 53, 121, 122, 123
DURATION Bob Meuser THE venerable S-hook re-re-visited days yore S-hook S-hook simply piece music wire bent shape S served adequately link between rubber motor either propshaft rear hook its problems Invariably thing would crawl around end up wasnt supposed Hundreds solutions have developed over past half century new ones keep popping up no best solution what might best person might best person another set skills tools goals three variations theme shown sketch come French magazine Modelle Reduit dA non involve block whittled cussed shape ajewelers saw tile perhaps milling machine three have some sort universal joint action lower sketch however would appear better effect would obtained drilling hole propshaft wire 90 degrees direction shown Any three hooks right will couple three propshaft fitments left upper incorporates single bobbin pretty tough beat hard make lathe bottom bent-wire affair incorporates extra loop wire pin useful transferring rubber motor winder prop after motor wound bobbin has central hole same job device middle has no provision holding pin perhaps could stuck through loop just forward motor Coupes smaller models wont have bother holding pin have reasonably strong hands can manage avoid getting rubber lube over Ornitbopter Except few occasions have offered freebies some sortthose always get huge response-the photo ornithopter model May issue received greatest number reader response have ever received about 800 items have published just crummy snapshot Three-views presented want gist thing drew up full-size plans fool thing asked early game got free Anyone else wants will have puny up buck send NFFS Plans Publications Lynn Terzian 4858 Moorpark Ave San Jose CA 95129 model OK stable easy adjust no tricks sort ofstand-off scale models seen published old magazines particu larly flown Goldberg Lidgard other Aeronuts late thirties its performance220 20-foot ceilingisnt terrific could about 300 higher ceiling doesnt light candle fourminute-plus scores racked up early days worked playing doesnt hack crack 430 Ill really let know about model rugged enough fly outdoors has done its required 430 outdoors isnt indoors Still five official national records out five tries isnt too shabby Cargo Record Cargo few outdoor free flight events thermal-finding skill significant factor So always thrill see continued progress pure event such Cargo would have thought theyd have gone about far could go decade ago Roman Ramirez topped previous record 82 ounces 1979 performance scoring 8342 ounces score total gross weight model three official flights wingspan model cannot exceed 48 engine dis placement limited 025 cu pretty 52 Model Aviation * I- Roman Ramirez recordsetting Cargo model Simple clean conventional Trimming dogged determination little bit luck paid oft Models 3-flight total lift 8342 oz TD 02 power Much insight type flying Romans journal excerpted column much nails down Cox ID 020 matched pair Cox 010 engines no longer produced engine run limited 15 sec anything over 40 sec official flight Peak altitude obtained such flights usually about 20 ft Romans log-book record attempt rather amusing ght 2 39 sec lands bush still 2 ft above ground Flight 3 398 sec lands bushes 3-4 ft ground Flight 4 49 sec bounces over sky encounters thermal Flight 5 42 sec perfect ept landing gear destroyed. Replaced landing gear model does seem same 18-sec engine run glow head loose. ht 8 last 402 sec Just plain lucky Model makes abrupt right turn takes off downwind Does lawnmower act climbs through foot-high weeds what seems like insufficient altitude e model doesnt appear anything special simple rectangular wing plain old NACA 6409 airfoil no winglets other gimmicks clean clean Nevertheless best country perhaps universe event intensely competitive fora dedicated few free-fighters Drawings model presented March 1977 issue ModelAviation model same except CG has shifted back bit Folders flappers other such wonderous things Upon re-reading Gieskiengs letter realized scheme shown sketch Gieskiengs Folly #89 shouldnt blamed him rather some un named Canadian Bill G met World Continued nape 121 Mart d cop Jr trophies Nats FAI PowermodeldevelopmentmarchesonThisistheexhaustextraCtOr decade ago tires up FAI Power model electric starter Meuser Roger Simpsons model Very neat thrust Meuser photo photo August 198053 space motion car generated electrical static discharge within can either fuel sloshing can friction against metal object Whatever cause good idea discard old fuel has stored partially-full containers long periods Also fuel cans should transported cardboard box large enough keep can falling over rubbing against other objects rag under can further insurance against spread spilled fuel Jack George Any readers care comment what its worth bet hot Florida sun caused fuel vaporize till trunk fumes Possibly electrical fault cars tail light turn signal wiring produced spark resulted explosion fortunate car equipped fire extinguisher car similarly equipped Have safe month John Presroz 7012 Elvira Court Falls Church VA 22042 FF Duration/Meuser continued page 53 Champs real Gieskiengs Folly #89 follows wings hollow moldings silicone rubber During climb wings rolled up like New Years Eve things just Climb Transition tid Front views shown c1ESFIGt2cS POLIAJ * Stan Stoy watch out Bill Geiskieng has two new folder/flapper-type concepts other column before engine cuts exhaust directed wing cavities brrr-ap. out go glide mode position practical details either schemes have totally solved felt should warn OK Perryman move Rather good airfoil Having already presented what editor referred Worlds Best Low Speed Airfoil April issue what am supposed encore gh act follow item about Lissaman airfoil used Gossamer Albatross mentioned Id present Peter Allnutts airfoils next month Peters material got buried twixt pages old NFFS Sympo report floated surface again recently airfoil shown series representing combined efforts Brian Egglestone deHavilland Canada Dr David Surry University Western Ontario members Toronto FAI Group Earlier work appeared Name Address CityStateZip II IAdd $2 shipping N Y State residents add tax Dealer inquiries invited II II II IC Master Charge C VisaI] Expiration DateI ICard NoI I0 Check enclosed $I SignatureI 1 August 1980 1 21 INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYSSWAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225FILLED NYLON 1519235FOR STRENGTH 2025245AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060 325 Mounting 6070325 Interchangeable Kraft OEM BULK INQUIRES INVITED SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUODLESTON CINCINNATI OHIO 45235 AREA CODE 513 igi 8744 Flat bottom nose gear HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS Still hobby dee/en G - CHECK THESE FEATURES twist its locked 2Push twst Its off 3Will come f under heavy engine vibration 4Will short out 5Positive spring contact 630 Inch lead wire & DISTRIBUTOR IN iIOIC INVITED Still Using bid Fashioned Wing Hinges G0G will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENTt450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 1/8 OR LARGE 1/4 GAPLESS IIINOS SLOTTER 40Simplifies installation Gapless Hinges Makes Slols 4 Sizes 0/ Balsa 7" // E S195 EASY TO INSTALL - 2 3 Send Free Info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 IC/IT 1/4 DEEP SLIT ALONG THE FULL LENGTH OF THE MATRIG SURFACES RISTALL ILl/NEUSE STRAIGHT PIN 10 MAKE SMALL IIOLE LYRRY RICH ON SODRIP CYANOALPITLATE GLLE IN HOLESCARtLARY AC/bR MLL CARRY GLUE ALONG ENTIRE IORIT FOR ADDITIONAL SEDJRITY RISERT SMALL PIN EVERY FEW INCHES CUT OFF FLUSH FILL AND SAND AS NEEDED FOR FINISH/NC 1978 NFFS Symposium Report New Family High-Lift Airfoils Low Reynolds Number Peter J Allnutt Computer #9 airfoil used Peters PA3O . has uniform roof-top pressure region followed concave separation-free pressure recovery region having fully turbulent flow section along previous sections reflexed trailing edge showed very good performance However two very unusual characteristics pull exerted model being towed incredibly high ideal calm air though models required very large decalage Some 7 8 degrees Maybe isnt surprising wing doesnt stall until around 12 15 degrees Peter uses shirring thread turbulator con sisting fine strip rubber encased spiral wrapping fine thread material available stores selling cloth yardage sewing mate rials thread vibrates wind leaving swath turbulent air behind set drawing Peters foil its stalling angle sketched what thought realistic streamlines appeared streamline passing through turbulator would pass far above wing asked Peter about Peter replied may have good point However have yet time try variety locations turb put shown article Max Hacklinger May 1954 Aero Modeller. figured knew what doing states failing former models low mounting turbulator ght measure ments showed 50 angle attack turbulator creates drag 90 turbu lator improves performance substantially possible much work turbs higher performances will obtained will take work vertical positioning turbulator critical recall once watching Hank Cole testing old model Hanks model used full-span nylon monofilament turb shirring thread turning characteristics model changed severely simply didnt want turn direction Hank wanted Hank thought best let have its own way about re-rig auto-rudder opposite turn noticed wire supports turb gotten bent little putting turb wrong position After turb support wire straightened model circled nicely Hank also model turbulator wing half making wing stall later other gave model nice recovery Hank zoomed off towline thermal little Chance disastrous complete stall Incidentally dashed lines airfoil drawing represent plywood supports turb less likely become bent wire ones Next month well present another Peters airfoils better some respects Computer #9 Aeromodeller Annual bites dust First published late forties fine free-flight intensive book-type annual no join ranks other annuals no Air Trails Annual Model Airplane News Annual alas Frank Zaics Model Aero nautic Yearbooks intolerably high production costs small books paperback form Annual has past four years made continued production impractical another annual publication will take its place Published magazine format same size Aeromodeller magazine new publication called Model Planes Review price USA will $3 scheduled on-sale date June 20 Perhaps bit 122 Model Aviation PRICE 3 ft $250 Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions use tanks diesel tuei Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions GOLDN PUSH RODS -i / push rods beat clog Pat ented splines inner rod cut right through mess Temperature compen sated prevent 1 elongation Good gold Insist Gold-N-Rod Claus included WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISYILLE ROAO e WILLOW GROVE PA 10090 215 659-3900 later Colonies Bob Meuser 4200 Gregory St Oakland CA 94619 RC Old-Timers/Mathews continued page 35 white glued framework combines advantages silk heat shrink materials reasonable cost strongly recommend technique model aircraft application old-timer ultra-modern pleased blame blame monkeys Flamingo contacted Roger Hammer order embellish presentation Flamingo graciously sent highly interesting letter shall quote modeling background involved phases start ing solid scale progressing through flying scale outdoor twin pushers cabin stick hand launch catapult gliders speed recall about 50 mph Junior Birdman Contest 1936 Central Park GET ORGANIZED Hee s set 4 sturdy fries hat holds over 4 years favorite 8 magazines 4 MAG FILES $495 send Sd 95 plus $1 00 postage handling 0GM INDUSTRIES PO BOX 388-K DOVER NH 03820 riends AERO CLUB OF ISRAEL Join us support national & international $events Israeli modelers Write 14702 29th Ave o Flushing NY 11354 clue also active indoor microfilm models entering East Coast contests Detroit Nationals about 1937 1 won Junior Birdman Indoor Championships NY area entitled free trip Los Angeles compete JB National ChainAugust 1980 123 #1 Line Winners F Make Glow ell 1/4A Y4 Scale Power Usable Power Greater Economy Send 40 & Stamped Addressed Envelope Dealer Inquiry Invited [Davis Diesel Development Inc 141 Milford CT 06460 GEE Attractive Black 4Yellow Sizes- SM L E-Z T-SHIRT Send $650 Post S Fundol THE PRINT SHOP Renacti Sc Titande Bay Oat P7B5M6 Canada Benjy Schneider displays dads beautiful Hammers Flamingo appeared Jascos iY38 catalog future kit Alas never produced because Nazi pressure Zaic family
Edition: Model Aviation - 1980/08
Page Numbers: 52, 53, 121, 122, 123
DURATION Bob Meuser THE venerable S-hook re-re-visited days yore S-hook S-hook simply piece music wire bent shape S served adequately link between rubber motor either propshaft rear hook its problems Invariably thing would crawl around end up wasnt supposed Hundreds solutions have developed over past half century new ones keep popping up no best solution what might best person might best person another set skills tools goals three variations theme shown sketch come French magazine Modelle Reduit dA non involve block whittled cussed shape ajewelers saw tile perhaps milling machine three have some sort universal joint action lower sketch however would appear better effect would obtained drilling hole propshaft wire 90 degrees direction shown Any three hooks right will couple three propshaft fitments left upper incorporates single bobbin pretty tough beat hard make lathe bottom bent-wire affair incorporates extra loop wire pin useful transferring rubber motor winder prop after motor wound bobbin has central hole same job device middle has no provision holding pin perhaps could stuck through loop just forward motor Coupes smaller models wont have bother holding pin have reasonably strong hands can manage avoid getting rubber lube over Ornitbopter Except few occasions have offered freebies some sortthose always get huge response-the photo ornithopter model May issue received greatest number reader response have ever received about 800 items have published just crummy snapshot Three-views presented want gist thing drew up full-size plans fool thing asked early game got free Anyone else wants will have puny up buck send NFFS Plans Publications Lynn Terzian 4858 Moorpark Ave San Jose CA 95129 model OK stable easy adjust no tricks sort ofstand-off scale models seen published old magazines particu larly flown Goldberg Lidgard other Aeronuts late thirties its performance220 20-foot ceilingisnt terrific could about 300 higher ceiling doesnt light candle fourminute-plus scores racked up early days worked playing doesnt hack crack 430 Ill really let know about model rugged enough fly outdoors has done its required 430 outdoors isnt indoors Still five official national records out five tries isnt too shabby Cargo Record Cargo few outdoor free flight events thermal-finding skill significant factor So always thrill see continued progress pure event such Cargo would have thought theyd have gone about far could go decade ago Roman Ramirez topped previous record 82 ounces 1979 performance scoring 8342 ounces score total gross weight model three official flights wingspan model cannot exceed 48 engine dis placement limited 025 cu pretty 52 Model Aviation * I- Roman Ramirez recordsetting Cargo model Simple clean conventional Trimming dogged determination little bit luck paid oft Models 3-flight total lift 8342 oz TD 02 power Much insight type flying Romans journal excerpted column much nails down Cox ID 020 matched pair Cox 010 engines no longer produced engine run limited 15 sec anything over 40 sec official flight Peak altitude obtained such flights usually about 20 ft Romans log-book record attempt rather amusing ght 2 39 sec lands bush still 2 ft above ground Flight 3 398 sec lands bushes 3-4 ft ground Flight 4 49 sec bounces over sky encounters thermal Flight 5 42 sec perfect ept landing gear destroyed. Replaced landing gear model does seem same 18-sec engine run glow head loose. ht 8 last 402 sec Just plain lucky Model makes abrupt right turn takes off downwind Does lawnmower act climbs through foot-high weeds what seems like insufficient altitude e model doesnt appear anything special simple rectangular wing plain old NACA 6409 airfoil no winglets other gimmicks clean clean Nevertheless best country perhaps universe event intensely competitive fora dedicated few free-fighters Drawings model presented March 1977 issue ModelAviation model same except CG has shifted back bit Folders flappers other such wonderous things Upon re-reading Gieskiengs letter realized scheme shown sketch Gieskiengs Folly #89 shouldnt blamed him rather some un named Canadian Bill G met World Continued nape 121 Mart d cop Jr trophies Nats FAI PowermodeldevelopmentmarchesonThisistheexhaustextraCtOr decade ago tires up FAI Power model electric starter Meuser Roger Simpsons model Very neat thrust Meuser photo photo August 198053 space motion car generated electrical static discharge within can either fuel sloshing can friction against metal object Whatever cause good idea discard old fuel has stored partially-full containers long periods Also fuel cans should transported cardboard box large enough keep can falling over rubbing against other objects rag under can further insurance against spread spilled fuel Jack George Any readers care comment what its worth bet hot Florida sun caused fuel vaporize till trunk fumes Possibly electrical fault cars tail light turn signal wiring produced spark resulted explosion fortunate car equipped fire extinguisher car similarly equipped Have safe month John Presroz 7012 Elvira Court Falls Church VA 22042 FF Duration/Meuser continued page 53 Champs real Gieskiengs Folly #89 follows wings hollow moldings silicone rubber During climb wings rolled up like New Years Eve things just Climb Transition tid Front views shown c1ESFIGt2cS POLIAJ * Stan Stoy watch out Bill Geiskieng has two new folder/flapper-type concepts other column before engine cuts exhaust directed wing cavities brrr-ap. out go glide mode position practical details either schemes have totally solved felt should warn OK Perryman move Rather good airfoil Having already presented what editor referred Worlds Best Low Speed Airfoil April issue what am supposed encore gh act follow item about Lissaman airfoil used Gossamer Albatross mentioned Id present Peter Allnutts airfoils next month Peters material got buried twixt pages old NFFS Sympo report floated surface again recently airfoil shown series representing combined efforts Brian Egglestone deHavilland Canada Dr David Surry University Western Ontario members Toronto FAI Group Earlier work appeared Name Address CityStateZip II IAdd $2 shipping N Y State residents add tax Dealer inquiries invited II II II IC Master Charge C VisaI] Expiration DateI ICard NoI I0 Check enclosed $I SignatureI 1 August 1980 1 21 INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYSSWAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225FILLED NYLON 1519235FOR STRENGTH 2025245AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060 325 Mounting 6070325 Interchangeable Kraft OEM BULK INQUIRES INVITED SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUODLESTON CINCINNATI OHIO 45235 AREA CODE 513 igi 8744 Flat bottom nose gear HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS Still hobby dee/en G - CHECK THESE FEATURES twist its locked 2Push twst Its off 3Will come f under heavy engine vibration 4Will short out 5Positive spring contact 630 Inch lead wire & DISTRIBUTOR IN iIOIC INVITED Still Using bid Fashioned Wing Hinges G0G will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENTt450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 1/8 OR LARGE 1/4 GAPLESS IIINOS SLOTTER 40Simplifies installation Gapless Hinges Makes Slols 4 Sizes 0/ Balsa 7" // E S195 EASY TO INSTALL - 2 3 Send Free Info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 IC/IT 1/4 DEEP SLIT ALONG THE FULL LENGTH OF THE MATRIG SURFACES RISTALL ILl/NEUSE STRAIGHT PIN 10 MAKE SMALL IIOLE LYRRY RICH ON SODRIP CYANOALPITLATE GLLE IN HOLESCARtLARY AC/bR MLL CARRY GLUE ALONG ENTIRE IORIT FOR ADDITIONAL SEDJRITY RISERT SMALL PIN EVERY FEW INCHES CUT OFF FLUSH FILL AND SAND AS NEEDED FOR FINISH/NC 1978 NFFS Symposium Report New Family High-Lift Airfoils Low Reynolds Number Peter J Allnutt Computer #9 airfoil used Peters PA3O . has uniform roof-top pressure region followed concave separation-free pressure recovery region having fully turbulent flow section along previous sections reflexed trailing edge showed very good performance However two very unusual characteristics pull exerted model being towed incredibly high ideal calm air though models required very large decalage Some 7 8 degrees Maybe isnt surprising wing doesnt stall until around 12 15 degrees Peter uses shirring thread turbulator con sisting fine strip rubber encased spiral wrapping fine thread material available stores selling cloth yardage sewing mate rials thread vibrates wind leaving swath turbulent air behind set drawing Peters foil its stalling angle sketched what thought realistic streamlines appeared streamline passing through turbulator would pass far above wing asked Peter about Peter replied may have good point However have yet time try variety locations turb put shown article Max Hacklinger May 1954 Aero Modeller. figured knew what doing states failing former models low mounting turbulator ght measure ments showed 50 angle attack turbulator creates drag 90 turbu lator improves performance substantially possible much work turbs higher performances will obtained will take work vertical positioning turbulator critical recall once watching Hank Cole testing old model Hanks model used full-span nylon monofilament turb shirring thread turning characteristics model changed severely simply didnt want turn direction Hank wanted Hank thought best let have its own way about re-rig auto-rudder opposite turn noticed wire supports turb gotten bent little putting turb wrong position After turb support wire straightened model circled nicely Hank also model turbulator wing half making wing stall later other gave model nice recovery Hank zoomed off towline thermal little Chance disastrous complete stall Incidentally dashed lines airfoil drawing represent plywood supports turb less likely become bent wire ones Next month well present another Peters airfoils better some respects Computer #9 Aeromodeller Annual bites dust First published late forties fine free-flight intensive book-type annual no join ranks other annuals no Air Trails Annual Model Airplane News Annual alas Frank Zaics Model Aero nautic Yearbooks intolerably high production costs small books paperback form Annual has past four years made continued production impractical another annual publication will take its place Published magazine format same size Aeromodeller magazine new publication called Model Planes Review price USA will $3 scheduled on-sale date June 20 Perhaps bit 122 Model Aviation PRICE 3 ft $250 Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions use tanks diesel tuei Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions GOLDN PUSH RODS -i / push rods beat clog Pat ented splines inner rod cut right through mess Temperature compen sated prevent 1 elongation Good gold Insist Gold-N-Rod Claus included WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISYILLE ROAO e WILLOW GROVE PA 10090 215 659-3900 later Colonies Bob Meuser 4200 Gregory St Oakland CA 94619 RC Old-Timers/Mathews continued page 35 white glued framework combines advantages silk heat shrink materials reasonable cost strongly recommend technique model aircraft application old-timer ultra-modern pleased blame blame monkeys Flamingo contacted Roger Hammer order embellish presentation Flamingo graciously sent highly interesting letter shall quote modeling background involved phases start ing solid scale progressing through flying scale outdoor twin pushers cabin stick hand launch catapult gliders speed recall about 50 mph Junior Birdman Contest 1936 Central Park GET ORGANIZED Hee s set 4 sturdy fries hat holds over 4 years favorite 8 magazines 4 MAG FILES $495 send Sd 95 plus $1 00 postage handling 0GM INDUSTRIES PO BOX 388-K DOVER NH 03820 riends AERO CLUB OF ISRAEL Join us support national & international $events Israeli modelers Write 14702 29th Ave o Flushing NY 11354 clue also active indoor microfilm models entering East Coast contests Detroit Nationals about 1937 1 won Junior Birdman Indoor Championships NY area entitled free trip Los Angeles compete JB National ChainAugust 1980 123 #1 Line Winners F Make Glow ell 1/4A Y4 Scale Power Usable Power Greater Economy Send 40 & Stamped Addressed Envelope Dealer Inquiry Invited [Davis Diesel Development Inc 141 Milford CT 06460 GEE Attractive Black 4Yellow Sizes- SM L E-Z T-SHIRT Send $650 Post S Fundol THE PRINT SHOP Renacti Sc Titande Bay Oat P7B5M6 Canada Benjy Schneider displays dads beautiful Hammers Flamingo appeared Jascos iY38 catalog future kit Alas never produced because Nazi pressure Zaic family
Edition: Model Aviation - 1980/08
Page Numbers: 52, 53, 121, 122, 123
DURATION Bob Meuser THE venerable S-hook re-re-visited days yore S-hook S-hook simply piece music wire bent shape S served adequately link between rubber motor either propshaft rear hook its problems Invariably thing would crawl around end up wasnt supposed Hundreds solutions have developed over past half century new ones keep popping up no best solution what might best person might best person another set skills tools goals three variations theme shown sketch come French magazine Modelle Reduit dA non involve block whittled cussed shape ajewelers saw tile perhaps milling machine three have some sort universal joint action lower sketch however would appear better effect would obtained drilling hole propshaft wire 90 degrees direction shown Any three hooks right will couple three propshaft fitments left upper incorporates single bobbin pretty tough beat hard make lathe bottom bent-wire affair incorporates extra loop wire pin useful transferring rubber motor winder prop after motor wound bobbin has central hole same job device middle has no provision holding pin perhaps could stuck through loop just forward motor Coupes smaller models wont have bother holding pin have reasonably strong hands can manage avoid getting rubber lube over Ornitbopter Except few occasions have offered freebies some sortthose always get huge response-the photo ornithopter model May issue received greatest number reader response have ever received about 800 items have published just crummy snapshot Three-views presented want gist thing drew up full-size plans fool thing asked early game got free Anyone else wants will have puny up buck send NFFS Plans Publications Lynn Terzian 4858 Moorpark Ave San Jose CA 95129 model OK stable easy adjust no tricks sort ofstand-off scale models seen published old magazines particu larly flown Goldberg Lidgard other Aeronuts late thirties its performance220 20-foot ceilingisnt terrific could about 300 higher ceiling doesnt light candle fourminute-plus scores racked up early days worked playing doesnt hack crack 430 Ill really let know about model rugged enough fly outdoors has done its required 430 outdoors isnt indoors Still five official national records out five tries isnt too shabby Cargo Record Cargo few outdoor free flight events thermal-finding skill significant factor So always thrill see continued progress pure event such Cargo would have thought theyd have gone about far could go decade ago Roman Ramirez topped previous record 82 ounces 1979 performance scoring 8342 ounces score total gross weight model three official flights wingspan model cannot exceed 48 engine dis placement limited 025 cu pretty 52 Model Aviation * I- Roman Ramirez recordsetting Cargo model Simple clean conventional Trimming dogged determination little bit luck paid oft Models 3-flight total lift 8342 oz TD 02 power Much insight type flying Romans journal excerpted column much nails down Cox ID 020 matched pair Cox 010 engines no longer produced engine run limited 15 sec anything over 40 sec official flight Peak altitude obtained such flights usually about 20 ft Romans log-book record attempt rather amusing ght 2 39 sec lands bush still 2 ft above ground Flight 3 398 sec lands bushes 3-4 ft ground Flight 4 49 sec bounces over sky encounters thermal Flight 5 42 sec perfect ept landing gear destroyed. Replaced landing gear model does seem same 18-sec engine run glow head loose. ht 8 last 402 sec Just plain lucky Model makes abrupt right turn takes off downwind Does lawnmower act climbs through foot-high weeds what seems like insufficient altitude e model doesnt appear anything special simple rectangular wing plain old NACA 6409 airfoil no winglets other gimmicks clean clean Nevertheless best country perhaps universe event intensely competitive fora dedicated few free-fighters Drawings model presented March 1977 issue ModelAviation model same except CG has shifted back bit Folders flappers other such wonderous things Upon re-reading Gieskiengs letter realized scheme shown sketch Gieskiengs Folly #89 shouldnt blamed him rather some un named Canadian Bill G met World Continued nape 121 Mart d cop Jr trophies Nats FAI PowermodeldevelopmentmarchesonThisistheexhaustextraCtOr decade ago tires up FAI Power model electric starter Meuser Roger Simpsons model Very neat thrust Meuser photo photo August 198053 space motion car generated electrical static discharge within can either fuel sloshing can friction against metal object Whatever cause good idea discard old fuel has stored partially-full containers long periods Also fuel cans should transported cardboard box large enough keep can falling over rubbing against other objects rag under can further insurance against spread spilled fuel Jack George Any readers care comment what its worth bet hot Florida sun caused fuel vaporize till trunk fumes Possibly electrical fault cars tail light turn signal wiring produced spark resulted explosion fortunate car equipped fire extinguisher car similarly equipped Have safe month John Presroz 7012 Elvira Court Falls Church VA 22042 FF Duration/Meuser continued page 53 Champs real Gieskiengs Folly #89 follows wings hollow moldings silicone rubber During climb wings rolled up like New Years Eve things just Climb Transition tid Front views shown c1ESFIGt2cS POLIAJ * Stan Stoy watch out Bill Geiskieng has two new folder/flapper-type concepts other column before engine cuts exhaust directed wing cavities brrr-ap. out go glide mode position practical details either schemes have totally solved felt should warn OK Perryman move Rather good airfoil Having already presented what editor referred Worlds Best Low Speed Airfoil April issue what am supposed encore gh act follow item about Lissaman airfoil used Gossamer Albatross mentioned Id present Peter Allnutts airfoils next month Peters material got buried twixt pages old NFFS Sympo report floated surface again recently airfoil shown series representing combined efforts Brian Egglestone deHavilland Canada Dr David Surry University Western Ontario members Toronto FAI Group Earlier work appeared Name Address CityStateZip II IAdd $2 shipping N Y State residents add tax Dealer inquiries invited II II II IC Master Charge C VisaI] Expiration DateI ICard NoI I0 Check enclosed $I SignatureI 1 August 1980 1 21 INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYSSWAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225FILLED NYLON 1519235FOR STRENGTH 2025245AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060 325 Mounting 6070325 Interchangeable Kraft OEM BULK INQUIRES INVITED SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUODLESTON CINCINNATI OHIO 45235 AREA CODE 513 igi 8744 Flat bottom nose gear HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS Still hobby dee/en G - CHECK THESE FEATURES twist its locked 2Push twst Its off 3Will come f under heavy engine vibration 4Will short out 5Positive spring contact 630 Inch lead wire & DISTRIBUTOR IN iIOIC INVITED Still Using bid Fashioned Wing Hinges G0G will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENTt450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 1/8 OR LARGE 1/4 GAPLESS IIINOS SLOTTER 40Simplifies installation Gapless Hinges Makes Slols 4 Sizes 0/ Balsa 7" // E S195 EASY TO INSTALL - 2 3 Send Free Info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 IC/IT 1/4 DEEP SLIT ALONG THE FULL LENGTH OF THE MATRIG SURFACES RISTALL ILl/NEUSE STRAIGHT PIN 10 MAKE SMALL IIOLE LYRRY RICH ON SODRIP CYANOALPITLATE GLLE IN HOLESCARtLARY AC/bR MLL CARRY GLUE ALONG ENTIRE IORIT FOR ADDITIONAL SEDJRITY RISERT SMALL PIN EVERY FEW INCHES CUT OFF FLUSH FILL AND SAND AS NEEDED FOR FINISH/NC 1978 NFFS Symposium Report New Family High-Lift Airfoils Low Reynolds Number Peter J Allnutt Computer #9 airfoil used Peters PA3O . has uniform roof-top pressure region followed concave separation-free pressure recovery region having fully turbulent flow section along previous sections reflexed trailing edge showed very good performance However two very unusual characteristics pull exerted model being towed incredibly high ideal calm air though models required very large decalage Some 7 8 degrees Maybe isnt surprising wing doesnt stall until around 12 15 degrees Peter uses shirring thread turbulator con sisting fine strip rubber encased spiral wrapping fine thread material available stores selling cloth yardage sewing mate rials thread vibrates wind leaving swath turbulent air behind set drawing Peters foil its stalling angle sketched what thought realistic streamlines appeared streamline passing through turbulator would pass far above wing asked Peter about Peter replied may have good point However have yet time try variety locations turb put shown article Max Hacklinger May 1954 Aero Modeller. figured knew what doing states failing former models low mounting turbulator ght measure ments showed 50 angle attack turbulator creates drag 90 turbu lator improves performance substantially possible much work turbs higher performances will obtained will take work vertical positioning turbulator critical recall once watching Hank Cole testing old model Hanks model used full-span nylon monofilament turb shirring thread turning characteristics model changed severely simply didnt want turn direction Hank wanted Hank thought best let have its own way about re-rig auto-rudder opposite turn noticed wire supports turb gotten bent little putting turb wrong position After turb support wire straightened model circled nicely Hank also model turbulator wing half making wing stall later other gave model nice recovery Hank zoomed off towline thermal little Chance disastrous complete stall Incidentally dashed lines airfoil drawing represent plywood supports turb less likely become bent wire ones Next month well present another Peters airfoils better some respects Computer #9 Aeromodeller Annual bites dust First published late forties fine free-flight intensive book-type annual no join ranks other annuals no Air Trails Annual Model Airplane News Annual alas Frank Zaics Model Aero nautic Yearbooks intolerably high production costs small books paperback form Annual has past four years made continued production impractical another annual publication will take its place Published magazine format same size Aeromodeller magazine new publication called Model Planes Review price USA will $3 scheduled on-sale date June 20 Perhaps bit 122 Model Aviation PRICE 3 ft $250 Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions use tanks diesel tuei Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions GOLDN PUSH RODS -i / push rods beat clog Pat ented splines inner rod cut right through mess Temperature compen sated prevent 1 elongation Good gold Insist Gold-N-Rod Claus included WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISYILLE ROAO e WILLOW GROVE PA 10090 215 659-3900 later Colonies Bob Meuser 4200 Gregory St Oakland CA 94619 RC Old-Timers/Mathews continued page 35 white glued framework combines advantages silk heat shrink materials reasonable cost strongly recommend technique model aircraft application old-timer ultra-modern pleased blame blame monkeys Flamingo contacted Roger Hammer order embellish presentation Flamingo graciously sent highly interesting letter shall quote modeling background involved phases start ing solid scale progressing through flying scale outdoor twin pushers cabin stick hand launch catapult gliders speed recall about 50 mph Junior Birdman Contest 1936 Central Park GET ORGANIZED Hee s set 4 sturdy fries hat holds over 4 years favorite 8 magazines 4 MAG FILES $495 send Sd 95 plus $1 00 postage handling 0GM INDUSTRIES PO BOX 388-K DOVER NH 03820 riends AERO CLUB OF ISRAEL Join us support national & international $events Israeli modelers Write 14702 29th Ave o Flushing NY 11354 clue also active indoor microfilm models entering East Coast contests Detroit Nationals about 1937 1 won Junior Birdman Indoor Championships NY area entitled free trip Los Angeles compete JB National ChainAugust 1980 123 #1 Line Winners F Make Glow ell 1/4A Y4 Scale Power Usable Power Greater Economy Send 40 & Stamped Addressed Envelope Dealer Inquiry Invited [Davis Diesel Development Inc 141 Milford CT 06460 GEE Attractive Black 4Yellow Sizes- SM L E-Z T-SHIRT Send $650 Post S Fundol THE PRINT SHOP Renacti Sc Titande Bay Oat P7B5M6 Canada Benjy Schneider displays dads beautiful Hammers Flamingo appeared Jascos iY38 catalog future kit Alas never produced because Nazi pressure Zaic family
Edition: Model Aviation - 1980/08
Page Numbers: 52, 53, 121, 122, 123
DURATION Bob Meuser THE venerable S-hook re-re-visited days yore S-hook S-hook simply piece music wire bent shape S served adequately link between rubber motor either propshaft rear hook its problems Invariably thing would crawl around end up wasnt supposed Hundreds solutions have developed over past half century new ones keep popping up no best solution what might best person might best person another set skills tools goals three variations theme shown sketch come French magazine Modelle Reduit dA non involve block whittled cussed shape ajewelers saw tile perhaps milling machine three have some sort universal joint action lower sketch however would appear better effect would obtained drilling hole propshaft wire 90 degrees direction shown Any three hooks right will couple three propshaft fitments left upper incorporates single bobbin pretty tough beat hard make lathe bottom bent-wire affair incorporates extra loop wire pin useful transferring rubber motor winder prop after motor wound bobbin has central hole same job device middle has no provision holding pin perhaps could stuck through loop just forward motor Coupes smaller models wont have bother holding pin have reasonably strong hands can manage avoid getting rubber lube over Ornitbopter Except few occasions have offered freebies some sortthose always get huge response-the photo ornithopter model May issue received greatest number reader response have ever received about 800 items have published just crummy snapshot Three-views presented want gist thing drew up full-size plans fool thing asked early game got free Anyone else wants will have puny up buck send NFFS Plans Publications Lynn Terzian 4858 Moorpark Ave San Jose CA 95129 model OK stable easy adjust no tricks sort ofstand-off scale models seen published old magazines particu larly flown Goldberg Lidgard other Aeronuts late thirties its performance220 20-foot ceilingisnt terrific could about 300 higher ceiling doesnt light candle fourminute-plus scores racked up early days worked playing doesnt hack crack 430 Ill really let know about model rugged enough fly outdoors has done its required 430 outdoors isnt indoors Still five official national records out five tries isnt too shabby Cargo Record Cargo few outdoor free flight events thermal-finding skill significant factor So always thrill see continued progress pure event such Cargo would have thought theyd have gone about far could go decade ago Roman Ramirez topped previous record 82 ounces 1979 performance scoring 8342 ounces score total gross weight model three official flights wingspan model cannot exceed 48 engine dis placement limited 025 cu pretty 52 Model Aviation * I- Roman Ramirez recordsetting Cargo model Simple clean conventional Trimming dogged determination little bit luck paid oft Models 3-flight total lift 8342 oz TD 02 power Much insight type flying Romans journal excerpted column much nails down Cox ID 020 matched pair Cox 010 engines no longer produced engine run limited 15 sec anything over 40 sec official flight Peak altitude obtained such flights usually about 20 ft Romans log-book record attempt rather amusing ght 2 39 sec lands bush still 2 ft above ground Flight 3 398 sec lands bushes 3-4 ft ground Flight 4 49 sec bounces over sky encounters thermal Flight 5 42 sec perfect ept landing gear destroyed. Replaced landing gear model does seem same 18-sec engine run glow head loose. ht 8 last 402 sec Just plain lucky Model makes abrupt right turn takes off downwind Does lawnmower act climbs through foot-high weeds what seems like insufficient altitude e model doesnt appear anything special simple rectangular wing plain old NACA 6409 airfoil no winglets other gimmicks clean clean Nevertheless best country perhaps universe event intensely competitive fora dedicated few free-fighters Drawings model presented March 1977 issue ModelAviation model same except CG has shifted back bit Folders flappers other such wonderous things Upon re-reading Gieskiengs letter realized scheme shown sketch Gieskiengs Folly #89 shouldnt blamed him rather some un named Canadian Bill G met World Continued nape 121 Mart d cop Jr trophies Nats FAI PowermodeldevelopmentmarchesonThisistheexhaustextraCtOr decade ago tires up FAI Power model electric starter Meuser Roger Simpsons model Very neat thrust Meuser photo photo August 198053 space motion car generated electrical static discharge within can either fuel sloshing can friction against metal object Whatever cause good idea discard old fuel has stored partially-full containers long periods Also fuel cans should transported cardboard box large enough keep can falling over rubbing against other objects rag under can further insurance against spread spilled fuel Jack George Any readers care comment what its worth bet hot Florida sun caused fuel vaporize till trunk fumes Possibly electrical fault cars tail light turn signal wiring produced spark resulted explosion fortunate car equipped fire extinguisher car similarly equipped Have safe month John Presroz 7012 Elvira Court Falls Church VA 22042 FF Duration/Meuser continued page 53 Champs real Gieskiengs Folly #89 follows wings hollow moldings silicone rubber During climb wings rolled up like New Years Eve things just Climb Transition tid Front views shown c1ESFIGt2cS POLIAJ * Stan Stoy watch out Bill Geiskieng has two new folder/flapper-type concepts other column before engine cuts exhaust directed wing cavities brrr-ap. out go glide mode position practical details either schemes have totally solved felt should warn OK Perryman move Rather good airfoil Having already presented what editor referred Worlds Best Low Speed Airfoil April issue what am supposed encore gh act follow item about Lissaman airfoil used Gossamer Albatross mentioned Id present Peter Allnutts airfoils next month Peters material got buried twixt pages old NFFS Sympo report floated surface again recently airfoil shown series representing combined efforts Brian Egglestone deHavilland Canada Dr David Surry University Western Ontario members Toronto FAI Group Earlier work appeared Name Address CityStateZip II IAdd $2 shipping N Y State residents add tax Dealer inquiries invited II II II IC Master Charge C VisaI] Expiration DateI ICard NoI I0 Check enclosed $I SignatureI 1 August 1980 1 21 INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSSTATIC DISPLAYSSWAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park Michigan NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225FILLED NYLON 1519235FOR STRENGTH 2025245AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060 325 Mounting 6070325 Interchangeable Kraft OEM BULK INQUIRES INVITED SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 8534 HUODLESTON CINCINNATI OHIO 45235 AREA CODE 513 igi 8744 Flat bottom nose gear HEAD LOCK THE NEW STANDARDFOR GLOW PLUG CONNECTORS Still hobby dee/en G - CHECK THESE FEATURES twist its locked 2Push twst Its off 3Will come f under heavy engine vibration 4Will short out 5Positive spring contact 630 Inch lead wire & DISTRIBUTOR IN iIOIC INVITED Still Using bid Fashioned Wing Hinges G0G will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENTt450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 1/8 OR LARGE 1/4 GAPLESS IIINOS SLOTTER 40Simplifies installation Gapless Hinges Makes Slols 4 Sizes 0/ Balsa 7" // E S195 EASY TO INSTALL - 2 3 Send Free Info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 IC/IT 1/4 DEEP SLIT ALONG THE FULL LENGTH OF THE MATRIG SURFACES RISTALL ILl/NEUSE STRAIGHT PIN 10 MAKE SMALL IIOLE LYRRY RICH ON SODRIP CYANOALPITLATE GLLE IN HOLESCARtLARY AC/bR MLL CARRY GLUE ALONG ENTIRE IORIT FOR ADDITIONAL SEDJRITY RISERT SMALL PIN EVERY FEW INCHES CUT OFF FLUSH FILL AND SAND AS NEEDED FOR FINISH/NC 1978 NFFS Symposium Report New Family High-Lift Airfoils Low Reynolds Number Peter J Allnutt Computer #9 airfoil used Peters PA3O . has uniform roof-top pressure region followed concave separation-free pressure recovery region having fully turbulent flow section along previous sections reflexed trailing edge showed very good performance However two very unusual characteristics pull exerted model being towed incredibly high ideal calm air though models required very large decalage Some 7 8 degrees Maybe isnt surprising wing doesnt stall until around 12 15 degrees Peter uses shirring thread turbulator con sisting fine strip rubber encased spiral wrapping fine thread material available stores selling cloth yardage sewing mate rials thread vibrates wind leaving swath turbulent air behind set drawing Peters foil its stalling angle sketched what thought realistic streamlines appeared streamline passing through turbulator would pass far above wing asked Peter about Peter replied may have good point However have yet time try variety locations turb put shown article Max Hacklinger May 1954 Aero Modeller. figured knew what doing states failing former models low mounting turbulator ght measure ments showed 50 angle attack turbulator creates drag 90 turbu lator improves performance substantially possible much work turbs higher performances will obtained will take work vertical positioning turbulator critical recall once watching Hank Cole testing old model Hanks model used full-span nylon monofilament turb shirring thread turning characteristics model changed severely simply didnt want turn direction Hank wanted Hank thought best let have its own way about re-rig auto-rudder opposite turn noticed wire supports turb gotten bent little putting turb wrong position After turb support wire straightened model circled nicely Hank also model turbulator wing half making wing stall later other gave model nice recovery Hank zoomed off towline thermal little Chance disastrous complete stall Incidentally dashed lines airfoil drawing represent plywood supports turb less likely become bent wire ones Next month well present another Peters airfoils better some respects Computer #9 Aeromodeller Annual bites dust First published late forties fine free-flight intensive book-type annual no join ranks other annuals no Air Trails Annual Model Airplane News Annual alas Frank Zaics Model Aero nautic Yearbooks intolerably high production costs small books paperback form Annual has past four years made continued production impractical another annual publication will take its place Published magazine format same size Aeromodeller magazine new publication called Model Planes Review price USA will $3 scheduled on-sale date June 20 Perhaps bit 122 Model Aviation PRICE 3 ft $250 Tanks ver half winning contestants 1979 National Model Airplane Cham pionships held Lincoln Nebraska specified what tank installed entries said using Sullivan Brand Over half No other brand could come close Champion modelers agree FULL TANK SYSTEM Sullivan has really put together built-in bubble space air tubing can fill way top enjoy extralong flights Just like other champions use tanks diesel tuei Winning control line flyers AMA championships chose Sullivan lines rate almost 3 1 over next popular brand Thats lead thats almost long four standard lengths . 35 52 60 70 . Sullivans Pylon Brand Control Lines dealers stock dont forget diameters run 008 up 021 size champions GOLDN PUSH RODS -i / push rods beat clog Pat ented splines inner rod cut right through mess Temperature compen sated prevent 1 elongation Good gold Insist Gold-N-Rod Claus included WARNING Modelers Fly Near Overhead Power Lines P R 0 D U C T S N C 535 DAVISYILLE ROAO e WILLOW GROVE PA 10090 215 659-3900 later Colonies Bob Meuser 4200 Gregory St Oakland CA 94619 RC Old-Timers/Mathews continued page 35 white glued framework combines advantages silk heat shrink materials reasonable cost strongly recommend technique model aircraft application old-timer ultra-modern pleased blame blame monkeys Flamingo contacted Roger Hammer order embellish presentation Flamingo graciously sent highly interesting letter shall quote modeling background involved phases start ing solid scale progressing through flying scale outdoor twin pushers cabin stick hand launch catapult gliders speed recall about 50 mph Junior Birdman Contest 1936 Central Park GET ORGANIZED Hee s set 4 sturdy fries hat holds over 4 years favorite 8 magazines 4 MAG FILES $495 send Sd 95 plus $1 00 postage handling 0GM INDUSTRIES PO BOX 388-K DOVER NH 03820 riends AERO CLUB OF ISRAEL Join us support national & international $events Israeli modelers Write 14702 29th Ave o Flushing NY 11354 clue also active indoor microfilm models entering East Coast contests Detroit Nationals about 1937 1 won Junior Birdman Indoor Championships NY area entitled free trip Los Angeles compete JB National ChainAugust 1980 123 #1 Line Winners F Make Glow ell 1/4A Y4 Scale Power Usable Power Greater Economy Send 40 & Stamped Addressed Envelope Dealer Inquiry Invited [Davis Diesel Development Inc 141 Milford CT 06460 GEE Attractive Black 4Yellow Sizes- SM L E-Z T-SHIRT Send $650 Post S Fundol THE PRINT SHOP Renacti Sc Titande Bay Oat P7B5M6 Canada Benjy Schneider displays dads beautiful Hammers Flamingo appeared Jascos iY38 catalog future kit Alas never produced because Nazi pressure Zaic family