C RACING Bill Lee IVE writing column little over five years now time has often lot fun write has often somewhat difficult During whole time Ive tried informative witty smart whatever columnist supposed Sometimes have succeeded probably often have case two months Sit down usually last minute crank out column has some remote bearing Control Line Racing column usually made up information has come some way over previous couple months get material use occa sionally readers mostly what see written own words own experiences last couple columns have written comprised reports own travels other activities things have con suming free time columns have poking little fun few people people believe can call friends have never intended anyone take offense what say since ever intended hope anyone reads columns understands read column offended please accept apologies sit down let know what mind hope am smart enough person recognize am wrong sure will never admit Im wrong unless know about dont like what Im saying dont just sit back grumble let hear As said column before long ago five years column can should forum ideas opinionsand necessarily just can present others never presented Now Ive got some stories tell Remember last column wrote know about great Houston Well now let knock little shine off Houston Turkeys seems famous racing/stuntcom bat flier named Frank lives near Houston Frank good ol boy aeronautical engineer University Texas real good competitor races lot very competitive Slow Rat has just recently built Fast Rat Well rank used run K&B 58 front rotor Slow Rat set up remote needle valve back behind engine just inlet stub under carburetor up front like smart flier Frank used fuel filter fuel feed system keep everything clean Frank always seemed have share troubles getting needle setting day just gave up disgustsold 58 tank plane everything built new Rat HP old plane showed up day hands newcomer time having very nearly same problems plagued Frank Upon inspection problem obvious does fuel filter go Frank Yes now understand goes before needle valve between needle valve fuel inlet Good grief superb Houston Racers about other Houston flier named John Again real competitive racer John running old Slow Rat built couple years ago kept pretty good shape running real good April Houston pilot let plane balloon landing wrecked So John forced building new Slow Rat Now John no dummy very good buildermakes some best looking stunt airplanes around really has building skills high level So Continued page 118 September 1980 39 good looking Har bet uus irs o Jacobs R Hassnat conforms rules Western Associated Modelers WAM require mufflers powered K&B 325 IaITornIan oo uemprIuhuI legal Slow Rat powered TWA 35 Note muffler safety prop nut Another look engine room Bob Kampmanns plane Note engine has shims under mounting lugsto clear fuel tank RC Pylon/Hager continued page 29 some liquid soap both 0 rings grooves install silicone #006 0 rings Lubricate inner 0 ring Lubriplate # 106 good lithium grease Reassemble needle valve unit grease outer 0 ring will find can move air adjusting arm 8 12 in-os torque well within strength limits KPS-18 FP-20 servos next step mill groove 375 Ys cutter 300 deep side mount can put needle up down whichever turns center groove cut 887 back mount drill tap two 440 holes side groove cut small metal strap drill two holes clamp needle valve unit mount Run Hot Stuff around needle valve unit screws cement whole mess mount Cut hole fuselage clear needle valve install mount needle valve unit Install fuel tubing running tank through cutoff new needle valve inlet Remove needle valve assembly engines carburetor make dump carb out Super Tigre K&B fuel inlet preferably K&B since made piece Screw nylon bolt other side carb needle valve used Cut off flush inside carb Hot Stuff nylon bolt place Hook in-flight unit needle valve outlet carb fuel tubing ready go beauty unit can actually change engines have install turn needle valve Once engine set morning adjusting done trans mitter allows pilot lean richen plane air long piece glow plug element left will try pass hints tips get have send Bill Hager 4622 Bridgeport Garland TX 75043 Vista/Marshall continued page 36 personal requirements Using 12-6 propeller 60 cu engine model flies best engine running fast 4 cyclejust would run pattern ship model too slow engine too rich too fast engine lean Ifly model 018 diameter lines 70 long lines little slack wing-overs engine too rich CL Aerobatics/Paul continued page 38 straight may take operation get right also chance Pauls case leadouts may too low compared center gravity especially since plane has inverted engine As Chris Lella pointed out trimming articles could lead improper vertical balance result being outboard wingtip flying up However since kit original design would look also chance somehow Paul may have too much inboard flap causing inboard wing stall Out outside maneuvers result being outboard wing comes up inside maneuvers may just enough tip weight counterbalance stall noticed Lastly Paul may want try adding tip weight help hold Out plane outside maneuvers course easiest solution should try possiblity tip weight will really help hourglass vertical eights course too much tip weight wing will start dipping inside squares familiar hinging action conclude still feel Paul probably has built-in warp wing will either have tweak flaps steam wing following letter received Larry Miles 6595 Foxridge Drive Mission KS 66202 1 frequently see kids adults would like get UC flying am ignorant what good UC planes available magazines seem strangely silent about beginners UC Whats guy like hundreds others about advising new comers about easy build sturdy inexpensive flyable beginners planes Nobody looking after beginning UC needs doesnt make good sense seeing UC adaptable city dwellers use easiest learn Cox has come out electric UC about $700 K-Mart Woolco claim easiest UC plane ever fly Id like see product review plane Coxs claims true has no serious defects would ideal beginning pilots unable dont feel column right place types articles request forward letter some can does believe beginning should occupy large portion magazine Especially liked article listed planes good steps pilot profi ciency Think should frequently list planes column refer readers back past issue gives details sake new occasional readers Model Aviation answer Larrys letter feel beginning planes available control line time time beginning novice articles magazines frequency beginning radio control articles lets face ale just RC fliers writers out could produce articles beginning control line flying dont appear regularity writers have successful competition plane will take crusading CLers like yourself get ball rolling assist beginners Editors note See May 1979 issue ofModelAviation construction article Crashmaster superb beginners CL model comes two sizes too available full-size plan No 262 $125 See page 128 ordering instructions RBM information precision aerobatics PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 RC Racing/Lee continued page 39 expected new Slow Rat real good John went over night Franks home very carefully jigged up block foam cut John some cores new super Slow Rat John got controls installed wing sheeted building fuselage Boy really making progress got wing glued going cut opening bottom wing sheeting access internal leadouts John being superior Houston Racer gone far make template installing controls would know EXACTLY leadouts would time came cut opening Well. youve undoubtedly guessed now John cut bottom sheeting wing some reason sheeting still stuck some foam wouldnt come loose So dug little out find foam instead opening leadouts Upon some intensive examina tion John thought shake wing see could hear leadouts rattling around inside wing couldbut inside outboard wing Seems John done such nice job wing installed controls wrong side Oh well John maybe some day well come up inverted Slow youll have just plane next story must tell about Ric poor unfortunate soul bought Franks old 58powered Slow Rat Ric relative newcomer Control Line Racing having predominantly sport flier up until about three years ago Ric has come long way years hes still nationally competitive Houston Racer like Frank John still OK guy Now Texas fly event Ive mentioned before called Quickie Rat designed around profile Rat racers easy build fly easy build can whip out easy week Ric built flying him getting pretty tacky decided put together new Southwesterns Dallas last Labor Day heard week before contest neat new Rat was really going good Well. Labor Day weekend came Dallas fly Ric brought 118 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT QUADRAS QUADRA REPAIR- $1000 plus parts Jim Messers ERCOUPE KIT- $19995* Concepts BIG FLEET KIT- $17995* Barkleys TIGER MOTH KIT- $22995* *includes FREE Du-Bro Wheels -SCALE PLANS FOR QUADRA ERCOUPE SKYBOLT- $2000 ea SUPER STEARMAN- $495 ZINGER & TOP FLITE PROPS- 10% off BALSA & SPRUCE sIzes- 45% off COCKPIT KIT Ercoupe- $1500 Stearman $1800 Fleet- $1800 RADIAL ENGINESfor Fleet- $3000 COVERITE 15 rolls - 20% off 24-Hour Seice. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View DrAllegany NY 14706 New 1/4 SCALE 1918 NIEUPORT 28 C1 Far additional inloimalion WW 1 Classic Catalogue send $100 PROCTOR ENTERPRISES CORP PO Box 9641 San Diego CA 92109 out new Quickie see admire something looked little strange see seems Quickie easy build can sleep Apparently thats Ric glued wing because UPSIDE DOWN prettiest flat-topped airfoil have ever seen Another case Houston Super Flier syn drome rearing its ugly head Thats about end stories now except Houston Racer shall remain anonymous flying Slow Combat past weekend Louisiana put drive washer Fox engine backwards Seems hit opponents string stupid thingto Slow Combat string just followed shape washer nice right front bearing packed ball race completely full always thought rough side supposed face thefront Well thats last case Houston Super Racerat least month W R Lee 3522 Tamarisk Lane Missouri City TX 77459 C au d ron/Robinson continued page 43 oped version evidently felicitous marriage between fighter racing machine small design team headed Georges Otfinovsky immediately began work new aircraft Most features new design originated Riffard himself Riffards very considerable experience expertise determined general layout structural innovations new machine Construction began June July 1937 proceeded slowly largely through lack capital also because partial mobilization French manpower during years prior September 1939 over year new aircraft referred Riflard derivative C712 fact first designated C7 1 2R indicate both its function R rd its descent earlier machine However early 1938 become necessary pursuade Armee de lAir value Riffards light fighter developed acceptable prototype designation C714 decided redesignate record aircraft suggest both fightef common type Thus record aircraft proved itself Armee de lAir would expected easily convinced value fighter June 1938 C7 1 2R redesignated C7 14R reality components common both machines basic fuselage truss capacity 19-litre Renault V-12 engine name Caudron However capital completing C7 14R financing attempt record still available unfinished C714R remained its hangar Issy-les-Moulinaux Following order twenty CR714 CI fighters November 1938 Avions Caudron obliged concentrate military production work record aeroplane brought almost standstill June 1938 Ernst Udet flew Heinkel H 100 V2 new 100-km record Ritlard remained confident still incomplete C714R could attack great chance ot success pure speed record 100-km records its own heavier clas sifications Maximum sea-level speed estimated 796 km/h 494 mph higher 440 mph Macchi-Castoldi MC72 46922 mph record set Fritz Wendel so-called Messerschmitt 109R April 1939 Although C714R completed during following summer turmoil Europe time made record attempt impossible Riffards ultimate bolide bleu never flown continued languish Issy until after outbreak hostilities September Apart its use existing basic fuselage structure elements C714R new components designed increased perfor mance new machine fuselage truss taken C710 light fighter prototypes produced Soviet Russia used basis extensively revised fuselage perfect streamline form Four longerons laminated beech joined sloping side panels birch plywood vertical spruce stiffeners cross-braces di agonals Magnesium-alloy panels 125 mm thick carried curved wooden arches above below main truss being split along line lower longeron divided sections number vertical buttjoints Duralumin junction straps carrying shakeproof nuts fixed longerons supporting arches other frames self-tapping screws panels attached special screws suit shakeproof nuts Wing retractable landing gear horizontal tail although virtually identical form C460 C560 Coupe Deutsch aircraft fact fully restressed higher speeds new type Apart slightly rounded tip shape one-piece wing indis tinguishable earlier types same symmetrical airfoil having its maximum thickness 35% chord Incidence zero throughout span horizontal top line dihedral formed considerable taper thickness Two continuous box-spars formed upper flanges laminated limbo type walnut found Cameroun lower flanges laminated spruce vertical webs birch plywood Ribs also birch-ply stressed-skin plywood covering glued rebates spruce leading edge over remainder structure Resin glue fixing medium used throughout light nails visible various places served hold parts under pressure during glueing immense care taken finish wing other components further reason long delay completing C714R After careful sandpapering priming coat three finish coats applied dried 24 hours rubbed down Both priming finish coats completely clear lacquer grain plywoodskin plainly visible Fuselage panels left polished magnesium Riflard claimed definite increase speed superior finish alone Ailerons split landing flaps similarly constructed single box spar birch-ply covering ball-bearing hinges Aileron control ingenious system levers developed Riffard himself housed within thickness wing Only two tiny bulges underside necessary clear ends aileron horns fitted rubber cord shock-damper manually operated flaps fitted rubber cord compensators reduce opening loads could locked closed fully open 45 degrees deflection Messier retractable undercarriage operated double-acting hydraulic jacks hydraulic system powered motordriven pump standby hand-pump additional emergency extension circuit Both main wheels welded steel tailskid controlled single lever indicating lamps show position main leg Material finish tail surfaces identical wing used single box spar spruce leading edges birch plywood covering torque tube leading edges elevators rudder ball bearing hinges flying controls balanced rubber shock cord cable operated via positive mechanical linkage surface parts especially reinforced against repetition damage led destruction C712 pilots cockpit fully enclosed sliding canopy similar famous C460 its vertical frames fixed rear fairing small close-fitting helmet ended abruptly sloping knife-edge refinement cockpit fairing system Riffards first two generations Coupe Deutsch aircraft developed Georges Otfinovsky decrease wetted area reduced drag weight September 1980 119
Edition: Model Aviation - 1980/09
Page Numbers: 39, 118, 119
C RACING Bill Lee IVE writing column little over five years now time has often lot fun write has often somewhat difficult During whole time Ive tried informative witty smart whatever columnist supposed Sometimes have succeeded probably often have case two months Sit down usually last minute crank out column has some remote bearing Control Line Racing column usually made up information has come some way over previous couple months get material use occa sionally readers mostly what see written own words own experiences last couple columns have written comprised reports own travels other activities things have con suming free time columns have poking little fun few people people believe can call friends have never intended anyone take offense what say since ever intended hope anyone reads columns understands read column offended please accept apologies sit down let know what mind hope am smart enough person recognize am wrong sure will never admit Im wrong unless know about dont like what Im saying dont just sit back grumble let hear As said column before long ago five years column can should forum ideas opinionsand necessarily just can present others never presented Now Ive got some stories tell Remember last column wrote know about great Houston Well now let knock little shine off Houston Turkeys seems famous racing/stuntcom bat flier named Frank lives near Houston Frank good ol boy aeronautical engineer University Texas real good competitor races lot very competitive Slow Rat has just recently built Fast Rat Well rank used run K&B 58 front rotor Slow Rat set up remote needle valve back behind engine just inlet stub under carburetor up front like smart flier Frank used fuel filter fuel feed system keep everything clean Frank always seemed have share troubles getting needle setting day just gave up disgustsold 58 tank plane everything built new Rat HP old plane showed up day hands newcomer time having very nearly same problems plagued Frank Upon inspection problem obvious does fuel filter go Frank Yes now understand goes before needle valve between needle valve fuel inlet Good grief superb Houston Racers about other Houston flier named John Again real competitive racer John running old Slow Rat built couple years ago kept pretty good shape running real good April Houston pilot let plane balloon landing wrecked So John forced building new Slow Rat Now John no dummy very good buildermakes some best looking stunt airplanes around really has building skills high level So Continued page 118 September 1980 39 good looking Har bet uus irs o Jacobs R Hassnat conforms rules Western Associated Modelers WAM require mufflers powered K&B 325 IaITornIan oo uemprIuhuI legal Slow Rat powered TWA 35 Note muffler safety prop nut Another look engine room Bob Kampmanns plane Note engine has shims under mounting lugsto clear fuel tank RC Pylon/Hager continued page 29 some liquid soap both 0 rings grooves install silicone #006 0 rings Lubricate inner 0 ring Lubriplate # 106 good lithium grease Reassemble needle valve unit grease outer 0 ring will find can move air adjusting arm 8 12 in-os torque well within strength limits KPS-18 FP-20 servos next step mill groove 375 Ys cutter 300 deep side mount can put needle up down whichever turns center groove cut 887 back mount drill tap two 440 holes side groove cut small metal strap drill two holes clamp needle valve unit mount Run Hot Stuff around needle valve unit screws cement whole mess mount Cut hole fuselage clear needle valve install mount needle valve unit Install fuel tubing running tank through cutoff new needle valve inlet Remove needle valve assembly engines carburetor make dump carb out Super Tigre K&B fuel inlet preferably K&B since made piece Screw nylon bolt other side carb needle valve used Cut off flush inside carb Hot Stuff nylon bolt place Hook in-flight unit needle valve outlet carb fuel tubing ready go beauty unit can actually change engines have install turn needle valve Once engine set morning adjusting done trans mitter allows pilot lean richen plane air long piece glow plug element left will try pass hints tips get have send Bill Hager 4622 Bridgeport Garland TX 75043 Vista/Marshall continued page 36 personal requirements Using 12-6 propeller 60 cu engine model flies best engine running fast 4 cyclejust would run pattern ship model too slow engine too rich too fast engine lean Ifly model 018 diameter lines 70 long lines little slack wing-overs engine too rich CL Aerobatics/Paul continued page 38 straight may take operation get right also chance Pauls case leadouts may too low compared center gravity especially since plane has inverted engine As Chris Lella pointed out trimming articles could lead improper vertical balance result being outboard wingtip flying up However since kit original design would look also chance somehow Paul may have too much inboard flap causing inboard wing stall Out outside maneuvers result being outboard wing comes up inside maneuvers may just enough tip weight counterbalance stall noticed Lastly Paul may want try adding tip weight help hold Out plane outside maneuvers course easiest solution should try possiblity tip weight will really help hourglass vertical eights course too much tip weight wing will start dipping inside squares familiar hinging action conclude still feel Paul probably has built-in warp wing will either have tweak flaps steam wing following letter received Larry Miles 6595 Foxridge Drive Mission KS 66202 1 frequently see kids adults would like get UC flying am ignorant what good UC planes available magazines seem strangely silent about beginners UC Whats guy like hundreds others about advising new comers about easy build sturdy inexpensive flyable beginners planes Nobody looking after beginning UC needs doesnt make good sense seeing UC adaptable city dwellers use easiest learn Cox has come out electric UC about $700 K-Mart Woolco claim easiest UC plane ever fly Id like see product review plane Coxs claims true has no serious defects would ideal beginning pilots unable dont feel column right place types articles request forward letter some can does believe beginning should occupy large portion magazine Especially liked article listed planes good steps pilot profi ciency Think should frequently list planes column refer readers back past issue gives details sake new occasional readers Model Aviation answer Larrys letter feel beginning planes available control line time time beginning novice articles magazines frequency beginning radio control articles lets face ale just RC fliers writers out could produce articles beginning control line flying dont appear regularity writers have successful competition plane will take crusading CLers like yourself get ball rolling assist beginners Editors note See May 1979 issue ofModelAviation construction article Crashmaster superb beginners CL model comes two sizes too available full-size plan No 262 $125 See page 128 ordering instructions RBM information precision aerobatics PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 RC Racing/Lee continued page 39 expected new Slow Rat real good John went over night Franks home very carefully jigged up block foam cut John some cores new super Slow Rat John got controls installed wing sheeted building fuselage Boy really making progress got wing glued going cut opening bottom wing sheeting access internal leadouts John being superior Houston Racer gone far make template installing controls would know EXACTLY leadouts would time came cut opening Well. youve undoubtedly guessed now John cut bottom sheeting wing some reason sheeting still stuck some foam wouldnt come loose So dug little out find foam instead opening leadouts Upon some intensive examina tion John thought shake wing see could hear leadouts rattling around inside wing couldbut inside outboard wing Seems John done such nice job wing installed controls wrong side Oh well John maybe some day well come up inverted Slow youll have just plane next story must tell about Ric poor unfortunate soul bought Franks old 58powered Slow Rat Ric relative newcomer Control Line Racing having predominantly sport flier up until about three years ago Ric has come long way years hes still nationally competitive Houston Racer like Frank John still OK guy Now Texas fly event Ive mentioned before called Quickie Rat designed around profile Rat racers easy build fly easy build can whip out easy week Ric built flying him getting pretty tacky decided put together new Southwesterns Dallas last Labor Day heard week before contest neat new Rat was really going good Well. Labor Day weekend came Dallas fly Ric brought 118 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT QUADRAS QUADRA REPAIR- $1000 plus parts Jim Messers ERCOUPE KIT- $19995* Concepts BIG FLEET KIT- $17995* Barkleys TIGER MOTH KIT- $22995* *includes FREE Du-Bro Wheels -SCALE PLANS FOR QUADRA ERCOUPE SKYBOLT- $2000 ea SUPER STEARMAN- $495 ZINGER & TOP FLITE PROPS- 10% off BALSA & SPRUCE sIzes- 45% off COCKPIT KIT Ercoupe- $1500 Stearman $1800 Fleet- $1800 RADIAL ENGINESfor Fleet- $3000 COVERITE 15 rolls - 20% off 24-Hour Seice. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View DrAllegany NY 14706 New 1/4 SCALE 1918 NIEUPORT 28 C1 Far additional inloimalion WW 1 Classic Catalogue send $100 PROCTOR ENTERPRISES CORP PO Box 9641 San Diego CA 92109 out new Quickie see admire something looked little strange see seems Quickie easy build can sleep Apparently thats Ric glued wing because UPSIDE DOWN prettiest flat-topped airfoil have ever seen Another case Houston Super Flier syn drome rearing its ugly head Thats about end stories now except Houston Racer shall remain anonymous flying Slow Combat past weekend Louisiana put drive washer Fox engine backwards Seems hit opponents string stupid thingto Slow Combat string just followed shape washer nice right front bearing packed ball race completely full always thought rough side supposed face thefront Well thats last case Houston Super Racerat least month W R Lee 3522 Tamarisk Lane Missouri City TX 77459 C au d ron/Robinson continued page 43 oped version evidently felicitous marriage between fighter racing machine small design team headed Georges Otfinovsky immediately began work new aircraft Most features new design originated Riffard himself Riffards very considerable experience expertise determined general layout structural innovations new machine Construction began June July 1937 proceeded slowly largely through lack capital also because partial mobilization French manpower during years prior September 1939 over year new aircraft referred Riflard derivative C712 fact first designated C7 1 2R indicate both its function R rd its descent earlier machine However early 1938 become necessary pursuade Armee de lAir value Riffards light fighter developed acceptable prototype designation C714 decided redesignate record aircraft suggest both fightef common type Thus record aircraft proved itself Armee de lAir would expected easily convinced value fighter June 1938 C7 1 2R redesignated C7 14R reality components common both machines basic fuselage truss capacity 19-litre Renault V-12 engine name Caudron However capital completing C7 14R financing attempt record still available unfinished C714R remained its hangar Issy-les-Moulinaux Following order twenty CR714 CI fighters November 1938 Avions Caudron obliged concentrate military production work record aeroplane brought almost standstill June 1938 Ernst Udet flew Heinkel H 100 V2 new 100-km record Ritlard remained confident still incomplete C714R could attack great chance ot success pure speed record 100-km records its own heavier clas sifications Maximum sea-level speed estimated 796 km/h 494 mph higher 440 mph Macchi-Castoldi MC72 46922 mph record set Fritz Wendel so-called Messerschmitt 109R April 1939 Although C714R completed during following summer turmoil Europe time made record attempt impossible Riffards ultimate bolide bleu never flown continued languish Issy until after outbreak hostilities September Apart its use existing basic fuselage structure elements C714R new components designed increased perfor mance new machine fuselage truss taken C710 light fighter prototypes produced Soviet Russia used basis extensively revised fuselage perfect streamline form Four longerons laminated beech joined sloping side panels birch plywood vertical spruce stiffeners cross-braces di agonals Magnesium-alloy panels 125 mm thick carried curved wooden arches above below main truss being split along line lower longeron divided sections number vertical buttjoints Duralumin junction straps carrying shakeproof nuts fixed longerons supporting arches other frames self-tapping screws panels attached special screws suit shakeproof nuts Wing retractable landing gear horizontal tail although virtually identical form C460 C560 Coupe Deutsch aircraft fact fully restressed higher speeds new type Apart slightly rounded tip shape one-piece wing indis tinguishable earlier types same symmetrical airfoil having its maximum thickness 35% chord Incidence zero throughout span horizontal top line dihedral formed considerable taper thickness Two continuous box-spars formed upper flanges laminated limbo type walnut found Cameroun lower flanges laminated spruce vertical webs birch plywood Ribs also birch-ply stressed-skin plywood covering glued rebates spruce leading edge over remainder structure Resin glue fixing medium used throughout light nails visible various places served hold parts under pressure during glueing immense care taken finish wing other components further reason long delay completing C714R After careful sandpapering priming coat three finish coats applied dried 24 hours rubbed down Both priming finish coats completely clear lacquer grain plywoodskin plainly visible Fuselage panels left polished magnesium Riflard claimed definite increase speed superior finish alone Ailerons split landing flaps similarly constructed single box spar birch-ply covering ball-bearing hinges Aileron control ingenious system levers developed Riffard himself housed within thickness wing Only two tiny bulges underside necessary clear ends aileron horns fitted rubber cord shock-damper manually operated flaps fitted rubber cord compensators reduce opening loads could locked closed fully open 45 degrees deflection Messier retractable undercarriage operated double-acting hydraulic jacks hydraulic system powered motordriven pump standby hand-pump additional emergency extension circuit Both main wheels welded steel tailskid controlled single lever indicating lamps show position main leg Material finish tail surfaces identical wing used single box spar spruce leading edges birch plywood covering torque tube leading edges elevators rudder ball bearing hinges flying controls balanced rubber shock cord cable operated via positive mechanical linkage surface parts especially reinforced against repetition damage led destruction C712 pilots cockpit fully enclosed sliding canopy similar famous C460 its vertical frames fixed rear fairing small close-fitting helmet ended abruptly sloping knife-edge refinement cockpit fairing system Riffards first two generations Coupe Deutsch aircraft developed Georges Otfinovsky decrease wetted area reduced drag weight September 1980 119
Edition: Model Aviation - 1980/09
Page Numbers: 39, 118, 119
C RACING Bill Lee IVE writing column little over five years now time has often lot fun write has often somewhat difficult During whole time Ive tried informative witty smart whatever columnist supposed Sometimes have succeeded probably often have case two months Sit down usually last minute crank out column has some remote bearing Control Line Racing column usually made up information has come some way over previous couple months get material use occa sionally readers mostly what see written own words own experiences last couple columns have written comprised reports own travels other activities things have con suming free time columns have poking little fun few people people believe can call friends have never intended anyone take offense what say since ever intended hope anyone reads columns understands read column offended please accept apologies sit down let know what mind hope am smart enough person recognize am wrong sure will never admit Im wrong unless know about dont like what Im saying dont just sit back grumble let hear As said column before long ago five years column can should forum ideas opinionsand necessarily just can present others never presented Now Ive got some stories tell Remember last column wrote know about great Houston Well now let knock little shine off Houston Turkeys seems famous racing/stuntcom bat flier named Frank lives near Houston Frank good ol boy aeronautical engineer University Texas real good competitor races lot very competitive Slow Rat has just recently built Fast Rat Well rank used run K&B 58 front rotor Slow Rat set up remote needle valve back behind engine just inlet stub under carburetor up front like smart flier Frank used fuel filter fuel feed system keep everything clean Frank always seemed have share troubles getting needle setting day just gave up disgustsold 58 tank plane everything built new Rat HP old plane showed up day hands newcomer time having very nearly same problems plagued Frank Upon inspection problem obvious does fuel filter go Frank Yes now understand goes before needle valve between needle valve fuel inlet Good grief superb Houston Racers about other Houston flier named John Again real competitive racer John running old Slow Rat built couple years ago kept pretty good shape running real good April Houston pilot let plane balloon landing wrecked So John forced building new Slow Rat Now John no dummy very good buildermakes some best looking stunt airplanes around really has building skills high level So Continued page 118 September 1980 39 good looking Har bet uus irs o Jacobs R Hassnat conforms rules Western Associated Modelers WAM require mufflers powered K&B 325 IaITornIan oo uemprIuhuI legal Slow Rat powered TWA 35 Note muffler safety prop nut Another look engine room Bob Kampmanns plane Note engine has shims under mounting lugsto clear fuel tank RC Pylon/Hager continued page 29 some liquid soap both 0 rings grooves install silicone #006 0 rings Lubricate inner 0 ring Lubriplate # 106 good lithium grease Reassemble needle valve unit grease outer 0 ring will find can move air adjusting arm 8 12 in-os torque well within strength limits KPS-18 FP-20 servos next step mill groove 375 Ys cutter 300 deep side mount can put needle up down whichever turns center groove cut 887 back mount drill tap two 440 holes side groove cut small metal strap drill two holes clamp needle valve unit mount Run Hot Stuff around needle valve unit screws cement whole mess mount Cut hole fuselage clear needle valve install mount needle valve unit Install fuel tubing running tank through cutoff new needle valve inlet Remove needle valve assembly engines carburetor make dump carb out Super Tigre K&B fuel inlet preferably K&B since made piece Screw nylon bolt other side carb needle valve used Cut off flush inside carb Hot Stuff nylon bolt place Hook in-flight unit needle valve outlet carb fuel tubing ready go beauty unit can actually change engines have install turn needle valve Once engine set morning adjusting done trans mitter allows pilot lean richen plane air long piece glow plug element left will try pass hints tips get have send Bill Hager 4622 Bridgeport Garland TX 75043 Vista/Marshall continued page 36 personal requirements Using 12-6 propeller 60 cu engine model flies best engine running fast 4 cyclejust would run pattern ship model too slow engine too rich too fast engine lean Ifly model 018 diameter lines 70 long lines little slack wing-overs engine too rich CL Aerobatics/Paul continued page 38 straight may take operation get right also chance Pauls case leadouts may too low compared center gravity especially since plane has inverted engine As Chris Lella pointed out trimming articles could lead improper vertical balance result being outboard wingtip flying up However since kit original design would look also chance somehow Paul may have too much inboard flap causing inboard wing stall Out outside maneuvers result being outboard wing comes up inside maneuvers may just enough tip weight counterbalance stall noticed Lastly Paul may want try adding tip weight help hold Out plane outside maneuvers course easiest solution should try possiblity tip weight will really help hourglass vertical eights course too much tip weight wing will start dipping inside squares familiar hinging action conclude still feel Paul probably has built-in warp wing will either have tweak flaps steam wing following letter received Larry Miles 6595 Foxridge Drive Mission KS 66202 1 frequently see kids adults would like get UC flying am ignorant what good UC planes available magazines seem strangely silent about beginners UC Whats guy like hundreds others about advising new comers about easy build sturdy inexpensive flyable beginners planes Nobody looking after beginning UC needs doesnt make good sense seeing UC adaptable city dwellers use easiest learn Cox has come out electric UC about $700 K-Mart Woolco claim easiest UC plane ever fly Id like see product review plane Coxs claims true has no serious defects would ideal beginning pilots unable dont feel column right place types articles request forward letter some can does believe beginning should occupy large portion magazine Especially liked article listed planes good steps pilot profi ciency Think should frequently list planes column refer readers back past issue gives details sake new occasional readers Model Aviation answer Larrys letter feel beginning planes available control line time time beginning novice articles magazines frequency beginning radio control articles lets face ale just RC fliers writers out could produce articles beginning control line flying dont appear regularity writers have successful competition plane will take crusading CLers like yourself get ball rolling assist beginners Editors note See May 1979 issue ofModelAviation construction article Crashmaster superb beginners CL model comes two sizes too available full-size plan No 262 $125 See page 128 ordering instructions RBM information precision aerobatics PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 RC Racing/Lee continued page 39 expected new Slow Rat real good John went over night Franks home very carefully jigged up block foam cut John some cores new super Slow Rat John got controls installed wing sheeted building fuselage Boy really making progress got wing glued going cut opening bottom wing sheeting access internal leadouts John being superior Houston Racer gone far make template installing controls would know EXACTLY leadouts would time came cut opening Well. youve undoubtedly guessed now John cut bottom sheeting wing some reason sheeting still stuck some foam wouldnt come loose So dug little out find foam instead opening leadouts Upon some intensive examina tion John thought shake wing see could hear leadouts rattling around inside wing couldbut inside outboard wing Seems John done such nice job wing installed controls wrong side Oh well John maybe some day well come up inverted Slow youll have just plane next story must tell about Ric poor unfortunate soul bought Franks old 58powered Slow Rat Ric relative newcomer Control Line Racing having predominantly sport flier up until about three years ago Ric has come long way years hes still nationally competitive Houston Racer like Frank John still OK guy Now Texas fly event Ive mentioned before called Quickie Rat designed around profile Rat racers easy build fly easy build can whip out easy week Ric built flying him getting pretty tacky decided put together new Southwesterns Dallas last Labor Day heard week before contest neat new Rat was really going good Well. Labor Day weekend came Dallas fly Ric brought 118 Model Aviation IN STOCK FOR IMMEDIATE SHIPMENT QUADRAS QUADRA REPAIR- $1000 plus parts Jim Messers ERCOUPE KIT- $19995* Concepts BIG FLEET KIT- $17995* Barkleys TIGER MOTH KIT- $22995* *includes FREE Du-Bro Wheels -SCALE PLANS FOR QUADRA ERCOUPE SKYBOLT- $2000 ea SUPER STEARMAN- $495 ZINGER & TOP FLITE PROPS- 10% off BALSA & SPRUCE sIzes- 45% off COCKPIT KIT Ercoupe- $1500 Stearman $1800 Fleet- $1800 RADIAL ENGINESfor Fleet- $3000 COVERITE 15 rolls - 20% off 24-Hour Seice. Add $250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View DrAllegany NY 14706 New 1/4 SCALE 1918 NIEUPORT 28 C1 Far additional inloimalion WW 1 Classic Catalogue send $100 PROCTOR ENTERPRISES CORP PO Box 9641 San Diego CA 92109 out new Quickie see admire something looked little strange see seems Quickie easy build can sleep Apparently thats Ric glued wing because UPSIDE DOWN prettiest flat-topped airfoil have ever seen Another case Houston Super Flier syn drome rearing its ugly head Thats about end stories now except Houston Racer shall remain anonymous flying Slow Combat past weekend Louisiana put drive washer Fox engine backwards Seems hit opponents string stupid thingto Slow Combat string just followed shape washer nice right front bearing packed ball race completely full always thought rough side supposed face thefront Well thats last case Houston Super Racerat least month W R Lee 3522 Tamarisk Lane Missouri City TX 77459 C au d ron/Robinson continued page 43 oped version evidently felicitous marriage between fighter racing machine small design team headed Georges Otfinovsky immediately began work new aircraft Most features new design originated Riffard himself Riffards very considerable experience expertise determined general layout structural innovations new machine Construction began June July 1937 proceeded slowly largely through lack capital also because partial mobilization French manpower during years prior September 1939 over year new aircraft referred Riflard derivative C712 fact first designated C7 1 2R indicate both its function R rd its descent earlier machine However early 1938 become necessary pursuade Armee de lAir value Riffards light fighter developed acceptable prototype designation C714 decided redesignate record aircraft suggest both fightef common type Thus record aircraft proved itself Armee de lAir would expected easily convinced value fighter June 1938 C7 1 2R redesignated C7 14R reality components common both machines basic fuselage truss capacity 19-litre Renault V-12 engine name Caudron However capital completing C7 14R financing attempt record still available unfinished C714R remained its hangar Issy-les-Moulinaux Following order twenty CR714 CI fighters November 1938 Avions Caudron obliged concentrate military production work record aeroplane brought almost standstill June 1938 Ernst Udet flew Heinkel H 100 V2 new 100-km record Ritlard remained confident still incomplete C714R could attack great chance ot success pure speed record 100-km records its own heavier clas sifications Maximum sea-level speed estimated 796 km/h 494 mph higher 440 mph Macchi-Castoldi MC72 46922 mph record set Fritz Wendel so-called Messerschmitt 109R April 1939 Although C714R completed during following summer turmoil Europe time made record attempt impossible Riffards ultimate bolide bleu never flown continued languish Issy until after outbreak hostilities September Apart its use existing basic fuselage structure elements C714R new components designed increased perfor mance new machine fuselage truss taken C710 light fighter prototypes produced Soviet Russia used basis extensively revised fuselage perfect streamline form Four longerons laminated beech joined sloping side panels birch plywood vertical spruce stiffeners cross-braces di agonals Magnesium-alloy panels 125 mm thick carried curved wooden arches above below main truss being split along line lower longeron divided sections number vertical buttjoints Duralumin junction straps carrying shakeproof nuts fixed longerons supporting arches other frames self-tapping screws panels attached special screws suit shakeproof nuts Wing retractable landing gear horizontal tail although virtually identical form C460 C560 Coupe Deutsch aircraft fact fully restressed higher speeds new type Apart slightly rounded tip shape one-piece wing indis tinguishable earlier types same symmetrical airfoil having its maximum thickness 35% chord Incidence zero throughout span horizontal top line dihedral formed considerable taper thickness Two continuous box-spars formed upper flanges laminated limbo type walnut found Cameroun lower flanges laminated spruce vertical webs birch plywood Ribs also birch-ply stressed-skin plywood covering glued rebates spruce leading edge over remainder structure Resin glue fixing medium used throughout light nails visible various places served hold parts under pressure during glueing immense care taken finish wing other components further reason long delay completing C714R After careful sandpapering priming coat three finish coats applied dried 24 hours rubbed down Both priming finish coats completely clear lacquer grain plywoodskin plainly visible Fuselage panels left polished magnesium Riflard claimed definite increase speed superior finish alone Ailerons split landing flaps similarly constructed single box spar birch-ply covering ball-bearing hinges Aileron control ingenious system levers developed Riffard himself housed within thickness wing Only two tiny bulges underside necessary clear ends aileron horns fitted rubber cord shock-damper manually operated flaps fitted rubber cord compensators reduce opening loads could locked closed fully open 45 degrees deflection Messier retractable undercarriage operated double-acting hydraulic jacks hydraulic system powered motordriven pump standby hand-pump additional emergency extension circuit Both main wheels welded steel tailskid controlled single lever indicating lamps show position main leg Material finish tail surfaces identical wing used single box spar spruce leading edges birch plywood covering torque tube leading edges elevators rudder ball bearing hinges flying controls balanced rubber shock cord cable operated via positive mechanical linkage surface parts especially reinforced against repetition damage led destruction C712 pilots cockpit fully enclosed sliding canopy similar famous C460 its vertical frames fixed rear fairing small close-fitting helmet ended abruptly sloping knife-edge refinement cockpit fairing system Riffards first two generations Coupe Deutsch aircraft developed Georges Otfinovsky decrease wetted area reduced drag weight September 1980 119