Hi-Tech 2002

NO OCR TEXT 1 IN WUIU UT WflUfU U WUU U 90 Model Avpti vufuIUn Imeter mu SPARE airplaa 60a Ian irpiane cties matter Ho oi au paved iii os vertically e yet slowi r thats t thai u uie O combination burns uj ye nui ibel Kfleyre ones zcoun whichwi er 1984 02 ii just w et real jet UI MOLWi onversioa NO OCR TEXT NO OCR TEXT Full-Size Plans Available. See Page 170 SEE S,EEH 0 PASS SHEET BELLCPANCVFDA VERTICAL TAIL SODEPED SIHAND SPAUST AVEEL OSLAPVANE OFLONITIA SOP VIEDSASH FLLEAS CLTHWAH Ip WAL AIC S GLEHA TLPAES PIPE 2 -LBWALL lASSO2A rSIHAP BAIHIND -----N5---U FAD SF SEHA TAIL PASSEASLETINS HAILS ANS 55 GLASS T AND HATTOS SHEA WINS SLAFALESF INSSF AALS AFT SF FH 5 found necessary starter cone engages slightly off center began rattling around inlet uncontrol lably fractured 46 sheet balsa internal wall number places exhaust duct glassed order stiffen entire aft fuselage torsion small section top centerline exhaust duct removed accommodate larger tuned pipe used RK-740 vertical cross brace removed same reason lower nacelle hatch extended facilitate re moval fan unit its longer tuned pipe rubberband fan-unit-hold-down absolutely necessary intend keep fan unit inside aircraft during entire flight about mo ment increase aileron wire size replacement Nyrods cables required eliminate aileron flutter problem Flight testing Anticipations excep tional flight performance high after briefly experimenting modified HT 2001 aircraft gray aircraft new forebody First flights aircraft engine yet broken no pipe pressure essential optimum engine performance showed exceptional climb rate -throttle position go-round response generally found propellerdriven aircraft Unfortunately testing curtailed dead-stick landing terrain resembled face moon stepped HT-2002 afore mentioned refinements except strength ened nacelle hatch hold-down attachment Twenty seconds flight full throttle heard severe airframe vibration Did throw blade Did pick up some sort foreign matter runway continued fly aircraft few seconds until noticed deepening profile Left bottom side partiaiiyassembied fan unit shows needle valve protruding trom tfle inner engine snroud aluminum tube needle valve extended point small Allen wrench ora piece 1/16 music wire bentto Lehapeand held place Allen setscrew located top stock needle valve Right RK-20 foreground RK-740 nearly identical size Slight differences between pose no problem making direct substitution RK-740 planes previously equipped RK20 96 Model Aviation C PASS BLOODDOUTESILEASS DNA SANE APES EILSDJPUSAAOOSTSHS WINS SIDESOFAIS H PPEUSEASE FILES LTA STEPS SF OS HASS OUTSIDEAELISSESWV SAEU AL SLADAHPLT PUTT ANDHP SF OH FLYNAIFLELAVESEALASSO HHSLE NATE AL L 555 S FAAPEHS S SIT LOPE ALA NESSAAOAHST NALEW STsEAAISE SPELT OFTMANTlES HWCA 0 52 HASHINGES TSP VIEW5L5 5 OHS ALA SPINLAOFDA TSP HF IS C 6S OFTFT LAPD ITHASP HAIPSFAD TV VTESPODAPT TEE AL SHEA LAPHIIS CAPE -EI FL. P ALCAHAKBFLF IDF SANSF5HA5P5 BED flSEPT FINSHADS SHEET PFLIAASSSPLID BALSA VEATILA. Ak HINTING ASKHASP 5555 SAPS BALSATAB VIEW UDOSEDED 55 HsASS, ASLSWED HEAP POPTIONSEH 31$AMESLS55____________________________________________________________[v32][b17941085113000]] HGP OS END SF AIPISSES SOTE HEWOAF 54 AFTEDFAA ETc EUSEASE OS IOHPETED SAFA POD*A S BALSA IPSAFA 0 ODD NOSE SEAS ISUS APSOSNALSELVOS TO ESSE HI-TECH 2002 $ SAW LISP ESTE LFFT GODS SHIPTEO LOS CAHI2A 005 BAIS OLAP eatw acsItv CoIAerAAT SESOTFO OUT ONE OFALSD SF OAFSYOAARA SMAVO 02 FLOSSINGP P EUASS SODESSPHLCF SEEAAMVBPS OACAVO FOP ALAOAAA IAodor oa-o-s Full-Size Plans Available. See Page 170 C T DAMNT C STALl MED BALSAA AINEAAN TIPSTODD C AOl SE B AATNM AIDE AAEAON -AAI AASATOASNE DAD BAN CANADA TIAANARI SACTI NC-' MED BANA P PACT ASA BAASE VTCZZVE~TUVNICAiZDA A~2N CENTAM FINT-LETAN ACNE AL ALA ICATB PAD B MA N CA EPANT ADA SAC N TE S ALA MASHES NTA SALT TAA C NI N TAN N C AALL1 BAA8 DL ALEAS TA P P EATENS N TAPEAT TAAI ANBC Al MANC PlAN BJNN AS A3B ME TALE BANSA TE INCL TA C N TAA Al ESAN TEA 9CC A ILCAN S BA PET N CARAT C TI N INNA AL AC AMAMME EcH2Oo2 D lower part aircraft surmised fan unit just about part company its mount throttled back immediately headed tarmac still under complete control throt tle slowly leaving airplane along fan responding Just 58 seconds after lift-off no Im Mr Spock George Myers timing event video camera HT-2002 safely runway lower nacelle fan unit scraping ground Inspection model showed port-side nacelle hold-down screw missing right-side bracket broken off nacelle MonoKote material bridging gap barely holding front nacelle fan unit onto aircraft other reason fan did exit completely tuned pipe extends slightly past end nacelle hung up horizontal cross brace difference weight between RK-740 fan RK-20 probably too much two screws securing nacelle causing fan leave aircraft high-G turn solution problem aforementioned rubberband hold-down takes load off two #4 sheet metal screws now secure lower nacellenot fan fan unit finally secured airframe HT-2002 returned field flight testing Continued page 165 Left Rubberbands through screw hooks have held fan place since first flight Right Retrofitting RK-740 previously-built HT-2001 requires bit minor surgeryte aft Internal duct Top centerline inner wall removed ailowforthe largertuned pipe September 1986 97 urn gray dark green camouflage top fin spinner Curtiss blue lettering trim made MonoKote roundels red num bers white Make canopy thin plastic epoxy-glue fuselage Outline canopy thin strips MonoKote aileron flap outlines black MonoKote Final assembly Glue wing fuselage Pass lead-out wires through wingtip line guide tie Attach nylon control horn elevator hookup pushrod Attach 3-in wheels main gear 1-in wheel tail gear Attach 11-6 prop 2-in spinner engine airplane now complete sure balance model point shown plans RC Hi-Tech 2002/Hunt Continued page 97 next flight proceeded uneventfully until dived aircraft maximum speed high-speed flyby camera just about point aircraft pitched downward heard loud buzzing sound above engine/pipe noise After landing inspected aircraft found nothing unusualno nicked blades noth ing obviously loose fan unit itself Since noise started aircraft pitched nose down reasoned fan blades might have stalled theory seemed have merit argument being fan inlet below fuselage being shielded canard wing obstructing airflow fan causing blades stall high rpm Another observation strengthened theory soon noise occurred aircraft slowed like hit brick wall nose well down would expect rapid descent blades stalled thrust forward speed would significantly reduced Returning home expecting cut cheater hole Eee Gads top fuselage found real problem specting MonoKote aileron hinge found either torn completely separated wing both left right aileron tips Assuming severe aileron flutter could cause proceeded stiffen entire aileron con trol system included previously mentioned replacement /32 wire torque rod -in wire replacement Nyrods cable Subsequent flights showed modification alleviated flutter problem Now problems have remedied does fly Fast smooth slow power Takeoffs gorounds rival overpowered sport ships Unfortunately wing loading ap proaching 30 oz/sq ft aircraft must handled gingerly during dead-stick landings will stall wing tip spin like heavy Scale model will notice loss pitch authority have found during few dead-stick landings have perform nose hard keep up already slightly up may seem strange against con ventional flying practices must keep nose level slightly high during approach order perform flared deadstick landing aircraft other condition should aware engine cah overheat left throttle position sitting motionless ground Since cylin der head entirely out wake fan forward motion friend have flown pusher-type aircraft have very likely experienced problem yourself Construction/modifications Construction HT-2002 almost identical HT-200 1 SO will describe changes will also spend some time des cribing construction RK-740 fan unit peculiar engine used OS Max 46 YR DF its installation HT 2002 new forebody constructed -in sheet well solid block balsa Cut out two inboard two out board -in sheet balsa fuselage sides laminate gap-filling cyanoacrylate CyA inboard sheet full length F5 outboard sheet foreshortened September1986 165 H0Y Horn' Old Timer _ s 8 GAs OQOEL l4adL RO leERs -1941 BROOKLYN DODGER 56 Cabin EWEST Retail $52 95**INTRODUCTORY PRICE5 $3900 1938 Record Breaker 96 $6056 1939 Zipper $555356 1936 Kloud King 63 $4236 1941 Brigidier 56 $0076 1991 Super Quaker 78 $7276 1949 So Long 5t1$3636 1936 Buccaneer 60 $5996 1936 Clipper MKI 72$4156 1937 Dallaire 108 $7516 193$ Miss America 64 $7196 1941 Playboy Sr 60 $51 16 1941 Playboy Jr 54 $3116 1938 Powerhouse 64 $53 56 1940 Sailplane 78 $6476 1936 Trenton Terror 72 $4076 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events FE & R/C feature highest quality machine cut & sanded ports Superior Competition sheet strip wood wire & windom material Plans orig FE models easily convertible 3ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 76 5sI $1800 Midway Model GNOME RIG Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 58 Span$2400 Midway Model FAST EDDIE Aerobatic /05 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$32l0 Leisure PLAYBOY SR 67 Gear 05 Elect $3060 Astro ASTRO SPORT 37 Direct 05 Elect $2200 Leisure WASP 37 Direct 05 Electrics$2200 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 84 40-454 stroke $6476 Oks/Midway DENNY JR 72 Alum Camel$6396 Oks/Midway BUZZARD BOMBSHELL 72$0190 PULL LINE OP ELECTRIC SYSTEMS & Parts Avail SKIPPING & HANDLING 64 Page CATALOGUE Up $800 add $150$200 PP/lot Class $801 $2060 add $225 copy will sent $2001 $4500 add $300 freewhen requested$4001 $7000 add $350 order over $7060 add $406 HOBBY HORN CA Addressees add 6% tax 15173 Moran St IA] Send MO Visa/MC#oEapl PO Box 2212 Check allow up 30 Weatwinster Ca 92684 days CK clearanceI 7141 6938311 COD Exact Charges plus $1 50 Hdl Cash Onlyl lAft Hrs 17141 89512031 ROUSH KITS TaylorCraft Full span 108 Area 1670 Clipped 84 Area 1300 Power 758o 12 Cu Balaa&PIy 2 lbs $11995 Super Sport 120 Span 73 Area 960 Power 758012 Cu B $9995 Super Kwik Fli Span 70 Area 927 Power 750012 Cu $8996 Two Ugly Stick Span 70 Area 1290 Power 750012 CO lB $9996 Jr Sticks Span 72 Area 1080 Power 758012 Cu B $7995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1726 Bywood St SE Canton Ohio 44707 1164644610 per plan Cut out fuselage bottom -in sheet hard balsa exact shape length shown top view Glue -in triangle stock lami nated side walls Lay bottom sheet over plan cut out glue Fl through F4 bottom sheet making sure center former across width bottom sheet Glue fuselage side walls form ers bottom sheet making sure shorter -in wall sheet outside lap joint existing -in Lite Ply fuselage HT-2001 building brand new HT-2002 make outside fuselage wall full length -in Lite Ply lapping -in sheet balsa inside wall -in ply outside fuselage wall point add 3M sheet balsa canopy floor forward top -in triangle stock glued fuselage walls Next block up nose hatch pieces sheet balsa solid block glue place Cut HT-2001 nose off old F4 bulkhead sure remove radio first Cut -in Lite Ply fuselage wall shape shown plans remove balsa planking fuselage up F5 Secure new nose onto HT 2001 HT-2002 will begin emerge its cocoon building HT-2002 scratch forebody assembly created conjunction rest fuselage above nacelle/fuselage split line Carve sand forebody match existing contour HT-2001 atF5 shape satisfactory cut away radio hatch fuselage walls leaving small angled portion just behind end canopy F2 can now hollowed fit radio nose F4 can removed entirely gets way youre installing radio Add hardwood canard nose gear pivot blocks point secured radio hatch i6-rn-dia pin aft section protrudes F5 sliding pin mounted fixed piece just behind canopy sliding pin slides out now engine running must secured small piece tape before flying canopy taken rear portion 12- 13-in Sig bubble canopy available just about hobby shop direct Sig glue canopies rather cut trim very close fit mating surfaces use matching color trim MonoKote secure heat trim MonoKote iron better seal both acetate underlying MonoKote forebody enhances illusion model future Air Force fighter Its can dream cant small ventral fins cut hard -in sheet balsa secured bottom center vertical tail-mounting rails CyA Angle ventrals out about 100 lower nacelle same vertical tails done improve ground clearance improve airflow over inboard side No changes made wings except deletion wing-tip sidewinders kept breaking off fins rough end runway removing appeared make no dif ference flight performance vertical tails canard also remain same aft fuselage must slightly modified accept new fan unit Cut larger hole top deck cylinder head cut out area inside upper inner wall tuned pipe see plans photographs remove ver tical support brace depending engine used either shorten lengthen throttle pushrod can accom plished few hours RK-740 fan unit amazing engi neering achievement Mr Kress Kress Technology active fan design field since its infancy has designed fan much smaller diameter its com petitors yet offers same thrust output approximately 7 lb primary intent behind design maintain same size RK-20 Except necessary addition longer larger-diameter tuned pipe constraint has met RK-740 can retrofitted very few modifications aircraft designed RK-20 instructions assem bling fan quite explicit photos descriptions should help explain assembly OS Max 46 YR DF engine power plant choice time writing three engine choices possible further modification K&B front rear rotor 75cc OS Max 46 VRDF ordering sure specify engine intended Assuming choose OS did what needs done sembling engine/carburetor en gine mount will notice righthand beam must ground away semicircle shape idle-stop screw carburetor must grind about Y32-in deep -in-dia grinding tool successfully install engine beams beams also must chamfered top slightly per instructions fit slightly greater width 05 versus K&B Washers under engine bolts must filed flush beams ensure interfere aluminum shroud engine body dished fuel tank also chosen necessary use Macs Products Wizzard tuned pipe some method getting vent/pressure line top tank required solved problem piece curved 3A2-in OD brass tubing inserted tank nipples positioned reached top crease dished tank HotStuffed place inside Note tank has approximately 6-oz ca pacity very much fuel 46 cu high-rpm fan engine am currently getting three minutes high-speed flight very 166 Model Aviation little fuel reserve would suggest 2-to 4-oz feeder tank installed aft radio section supplement integral tank Pipe pressure adequate am told feed main tank auxiliary tank have yet try throttle extension shaft must made get belicrank outside fan shell easily fabricated brass tubing sheet brass about hours time Details plans Remember hole must provided gain access lowspeed carburetor adjustment screw located bellcrank side carburetor fit throttle extension onto carb stock black steel bellcrank rim must filed same diameter drum accomplished two notches brass extension bellcmank drum setscrew can filed Take care position brass external bellcrank correctly proper throttle actuation assembly complete will no tice top right aft stator must shortened chord leading edge accommodate throttle extension shaft order make retrofit HT 2001 little easier chose use gutted RK-20 fan shell RK-740 instead aluminum wrap provided kit cannot get fan shell Midwest Kress Technology use stock shell position plywood rings onto front aft ends simulate RK-20 hole setscrew needle valve conveniently provided extending needle valve outside fan shell nacelle suitable piece piano wire Allen wrench 6-in-dia length suit L-shaped wire does trick can spare /16-in Allen wrench use already has flat setscrew top stock needle valve Holes cylinder head needle valve fuel lines throttle extension must located drilled enlarged final assembly Notches fan shell throttle pushrod notch forward stiffener ring alignment fuselage can cut away time necessary modifications fuselage have made time trial fit fan assembly aircraft Locate hole lower nacelle half needle valve trial fit Charge batteries truck field fuel fire up set threshold push throttle firewall pull stick chest watch point its nose towards heavens Till next .... Again would like thank George Myers Bob Kress Bob Aberle especially wife proofreader moral support help making project pleasant painless success Golden Age/Berliner Continued page 84 non-flying reproductions Given basic information true modeler should able take rest way first classic series trophies pylon racing James Gordon Bennett began Reims France 1909 airplanes participating races extremely fragile Few lasted weeks after race can expect find little era Musee de lAir Le Bourget Airport north Paris has 1910 Baby Wright Racer marvelous 1913 Deperdussin mono coque Ford Museum Dearborn MI has remarkably advanced 1920 Dayton Wright Racer though never won anything pioneered retractable landing gear very modern streamlining Beginning same time Gor don Bennett lasting until 1931 great Schneider Trophy Race series seaplanes led some truly significant advances engines aerodynamics great craft flown races Supermarmne Sea Lion 1919 race still survives well hull does least Science Museum London far greater interest housed same building Supermarine S6B winner final race first flying machine top 400 mph An earlier type S6A Hall Aviation Southampton Engiand Europe hosted some pretty interesting racing during 1 930s though hardly scale Cleveland big meet Coupe Deutsch France run laps long course stressing dura bility well speed sleek dark blue Caudron racers completely dominated series extant may actually sophisticated mock-up built movie sometime after war accurate depiction Caudron 336 Right next Musee de lAir Potez 53 presumably winner 1933 race also display another great Caudron C714R might have broken world speed record war USA surviving Schnei der racer Curtiss R3C-2 Jimmy Doolittle flew victory 1925 Its display National Air & Space Mu seum Washington DC two Italian racing seaplanes left era Macchi M39 1926 race other spectacular Macchi Castoldi MC72 its tandem engines dual props turned 441 mph 1934 record still stands Both semiprivate collections Italy Pulitzer Trophy Races 1920 1925 purely military event pro duced some colorful early racersthe Curtiss Army Navy bi planes screaming V-12 engines classy lines Sadly thats left wing panel Curtiss R-6 US ELLERS NEW 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THP 1266778 136778 14677128 1567 16678 NEW *1 J PRICE 299 379 479 689 989 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833A456 8334568 84566/27 t 9456677/ 1045667 106W8W 106EW 11 4677/778 SW 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 f September 1986 167 THE LEADER IN COM PETITION PRICE 149 149 179 189 199 199 209 209 219 229 229 239 239 279 279 279 349 459 659 969 989 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5N279 8I 6778 299 SERIES 400C 866777289 97289 responding advertisers mention read about Model Aviation W WIDE BLADE EW EXTRA WIDE N NARROW

NO OCR TEXT 1 IN WUIU UT WflUfU U WUU U 90 Model Avpti vufuIUn Imeter mu SPARE airplaa 60a Ian irpiane cties matter Ho oi au paved iii os vertically e yet slowi r thats t thai u uie O combination burns uj ye nui ibel Kfleyre ones zcoun whichwi er 1984 02 ii just w et real jet UI MOLWi onversioa NO OCR TEXT NO OCR TEXT Full-Size Plans Available. See Page 170 SEE S,EEH 0 PASS SHEET BELLCPANCVFDA VERTICAL TAIL SODEPED SIHAND SPAUST AVEEL OSLAPVANE OFLONITIA SOP VIEDSASH FLLEAS CLTHWAH Ip WAL AIC S GLEHA TLPAES PIPE 2 -LBWALL lASSO2A rSIHAP BAIHIND -----N5---U FAD SF SEHA TAIL PASSEASLETINS HAILS ANS 55 GLASS T AND HATTOS SHEA WINS SLAFALESF INSSF AALS AFT SF FH 5 found necessary starter cone engages slightly off center began rattling around inlet uncontrol lably fractured 46 sheet balsa internal wall number places exhaust duct glassed order stiffen entire aft fuselage torsion small section top centerline exhaust duct removed accommodate larger tuned pipe used RK-740 vertical cross brace removed same reason lower nacelle hatch extended facilitate re moval fan unit its longer tuned pipe rubberband fan-unit-hold-down absolutely necessary intend keep fan unit inside aircraft during entire flight about mo ment increase aileron wire size replacement Nyrods cables required eliminate aileron flutter problem Flight testing Anticipations excep tional flight performance high after briefly experimenting modified HT 2001 aircraft gray aircraft new forebody First flights aircraft engine yet broken no pipe pressure essential optimum engine performance showed exceptional climb rate -throttle position go-round response generally found propellerdriven aircraft Unfortunately testing curtailed dead-stick landing terrain resembled face moon stepped HT-2002 afore mentioned refinements except strength ened nacelle hatch hold-down attachment Twenty seconds flight full throttle heard severe airframe vibration Did throw blade Did pick up some sort foreign matter runway continued fly aircraft few seconds until noticed deepening profile Left bottom side partiaiiyassembied fan unit shows needle valve protruding trom tfle inner engine snroud aluminum tube needle valve extended point small Allen wrench ora piece 1/16 music wire bentto Lehapeand held place Allen setscrew located top stock needle valve Right RK-20 foreground RK-740 nearly identical size Slight differences between pose no problem making direct substitution RK-740 planes previously equipped RK20 96 Model Aviation C PASS BLOODDOUTESILEASS DNA SANE APES EILSDJPUSAAOOSTSHS WINS SIDESOFAIS H PPEUSEASE FILES LTA STEPS SF OS HASS OUTSIDEAELISSESWV SAEU AL SLADAHPLT PUTT ANDHP SF OH FLYNAIFLELAVESEALASSO HHSLE NATE AL L 555 S FAAPEHS S SIT LOPE ALA NESSAAOAHST NALEW STsEAAISE SPELT OFTMANTlES HWCA 0 52 HASHINGES TSP VIEW5L5 5 OHS ALA SPINLAOFDA TSP HF IS C 6S OFTFT LAPD ITHASP HAIPSFAD TV VTESPODAPT TEE AL SHEA LAPHIIS CAPE -EI FL. P ALCAHAKBFLF IDF SANSF5HA5P5 BED flSEPT FINSHADS SHEET PFLIAASSSPLID BALSA VEATILA. Ak HINTING ASKHASP 5555 SAPS BALSATAB VIEW UDOSEDED 55 HsASS, ASLSWED HEAP POPTIONSEH 31$AMESLS55____________________________________________________________[v32][b17941085113000]] HGP OS END SF AIPISSES SOTE HEWOAF 54 AFTEDFAA ETc EUSEASE OS IOHPETED SAFA POD*A S BALSA IPSAFA 0 ODD NOSE SEAS ISUS APSOSNALSELVOS TO ESSE HI-TECH 2002 $ SAW LISP ESTE LFFT GODS SHIPTEO LOS CAHI2A 005 BAIS OLAP eatw acsItv CoIAerAAT SESOTFO OUT ONE OFALSD SF OAFSYOAARA SMAVO 02 FLOSSINGP P EUASS SODESSPHLCF SEEAAMVBPS OACAVO FOP ALAOAAA IAodor oa-o-s Full-Size Plans Available. See Page 170 C T DAMNT C STALl MED BALSAA AINEAAN TIPSTODD C AOl SE B AATNM AIDE AAEAON -AAI AASATOASNE DAD BAN CANADA TIAANARI SACTI NC-' MED BANA P PACT ASA BAASE VTCZZVE~TUVNICAiZDA A~2N CENTAM FINT-LETAN ACNE AL ALA ICATB PAD B MA N CA EPANT ADA SAC N TE S ALA MASHES NTA SALT TAA C NI N TAN N C AALL1 BAA8 DL ALEAS TA P P EATENS N TAPEAT TAAI ANBC Al MANC PlAN BJNN AS A3B ME TALE BANSA TE INCL TA C N TAA Al ESAN TEA 9CC A ILCAN S BA PET N CARAT C TI N INNA AL AC AMAMME EcH2Oo2 D lower part aircraft surmised fan unit just about part company its mount throttled back immediately headed tarmac still under complete control throt tle slowly leaving airplane along fan responding Just 58 seconds after lift-off no Im Mr Spock George Myers timing event video camera HT-2002 safely runway lower nacelle fan unit scraping ground Inspection model showed port-side nacelle hold-down screw missing right-side bracket broken off nacelle MonoKote material bridging gap barely holding front nacelle fan unit onto aircraft other reason fan did exit completely tuned pipe extends slightly past end nacelle hung up horizontal cross brace difference weight between RK-740 fan RK-20 probably too much two screws securing nacelle causing fan leave aircraft high-G turn solution problem aforementioned rubberband hold-down takes load off two #4 sheet metal screws now secure lower nacellenot fan fan unit finally secured airframe HT-2002 returned field flight testing Continued page 165 Left Rubberbands through screw hooks have held fan place since first flight Right Retrofitting RK-740 previously-built HT-2001 requires bit minor surgeryte aft Internal duct Top centerline inner wall removed ailowforthe largertuned pipe September 1986 97 urn gray dark green camouflage top fin spinner Curtiss blue lettering trim made MonoKote roundels red num bers white Make canopy thin plastic epoxy-glue fuselage Outline canopy thin strips MonoKote aileron flap outlines black MonoKote Final assembly Glue wing fuselage Pass lead-out wires through wingtip line guide tie Attach nylon control horn elevator hookup pushrod Attach 3-in wheels main gear 1-in wheel tail gear Attach 11-6 prop 2-in spinner engine airplane now complete sure balance model point shown plans RC Hi-Tech 2002/Hunt Continued page 97 next flight proceeded uneventfully until dived aircraft maximum speed high-speed flyby camera just about point aircraft pitched downward heard loud buzzing sound above engine/pipe noise After landing inspected aircraft found nothing unusualno nicked blades noth ing obviously loose fan unit itself Since noise started aircraft pitched nose down reasoned fan blades might have stalled theory seemed have merit argument being fan inlet below fuselage being shielded canard wing obstructing airflow fan causing blades stall high rpm Another observation strengthened theory soon noise occurred aircraft slowed like hit brick wall nose well down would expect rapid descent blades stalled thrust forward speed would significantly reduced Returning home expecting cut cheater hole Eee Gads top fuselage found real problem specting MonoKote aileron hinge found either torn completely separated wing both left right aileron tips Assuming severe aileron flutter could cause proceeded stiffen entire aileron con trol system included previously mentioned replacement /32 wire torque rod -in wire replacement Nyrods cable Subsequent flights showed modification alleviated flutter problem Now problems have remedied does fly Fast smooth slow power Takeoffs gorounds rival overpowered sport ships Unfortunately wing loading ap proaching 30 oz/sq ft aircraft must handled gingerly during dead-stick landings will stall wing tip spin like heavy Scale model will notice loss pitch authority have found during few dead-stick landings have perform nose hard keep up already slightly up may seem strange against con ventional flying practices must keep nose level slightly high during approach order perform flared deadstick landing aircraft other condition should aware engine cah overheat left throttle position sitting motionless ground Since cylin der head entirely out wake fan forward motion friend have flown pusher-type aircraft have very likely experienced problem yourself Construction/modifications Construction HT-2002 almost identical HT-200 1 SO will describe changes will also spend some time des cribing construction RK-740 fan unit peculiar engine used OS Max 46 YR DF its installation HT 2002 new forebody constructed -in sheet well solid block balsa Cut out two inboard two out board -in sheet balsa fuselage sides laminate gap-filling cyanoacrylate CyA inboard sheet full length F5 outboard sheet foreshortened September1986 165 H0Y Horn' Old Timer _ s 8 GAs OQOEL l4adL RO leERs -1941 BROOKLYN DODGER 56 Cabin EWEST Retail $52 95**INTRODUCTORY PRICE5 $3900 1938 Record Breaker 96 $6056 1939 Zipper $555356 1936 Kloud King 63 $4236 1941 Brigidier 56 $0076 1991 Super Quaker 78 $7276 1949 So Long 5t1$3636 1936 Buccaneer 60 $5996 1936 Clipper MKI 72$4156 1937 Dallaire 108 $7516 193$ Miss America 64 $7196 1941 Playboy Sr 60 $51 16 1941 Playboy Jr 54 $3116 1938 Powerhouse 64 $53 56 1940 Sailplane 78 $6476 1936 Trenton Terror 72 $4076 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events FE & R/C feature highest quality machine cut & sanded ports Superior Competition sheet strip wood wire & windom material Plans orig FE models easily convertible 3ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 76 5sI $1800 Midway Model GNOME RIG Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 58 Span$2400 Midway Model FAST EDDIE Aerobatic /05 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$32l0 Leisure PLAYBOY SR 67 Gear 05 Elect $3060 Astro ASTRO SPORT 37 Direct 05 Elect $2200 Leisure WASP 37 Direct 05 Electrics$2200 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 84 40-454 stroke $6476 Oks/Midway DENNY JR 72 Alum Camel$6396 Oks/Midway BUZZARD BOMBSHELL 72$0190 PULL LINE OP ELECTRIC SYSTEMS & Parts Avail SKIPPING & HANDLING 64 Page CATALOGUE Up $800 add $150$200 PP/lot Class $801 $2060 add $225 copy will sent $2001 $4500 add $300 freewhen requested$4001 $7000 add $350 order over $7060 add $406 HOBBY HORN CA Addressees add 6% tax 15173 Moran St IA] Send MO Visa/MC#oEapl PO Box 2212 Check allow up 30 Weatwinster Ca 92684 days CK clearanceI 7141 6938311 COD Exact Charges plus $1 50 Hdl Cash Onlyl lAft Hrs 17141 89512031 ROUSH KITS TaylorCraft Full span 108 Area 1670 Clipped 84 Area 1300 Power 758o 12 Cu Balaa&PIy 2 lbs $11995 Super Sport 120 Span 73 Area 960 Power 758012 Cu B $9995 Super Kwik Fli Span 70 Area 927 Power 750012 Cu $8996 Two Ugly Stick Span 70 Area 1290 Power 750012 CO lB $9996 Jr Sticks Span 72 Area 1080 Power 758012 Cu B $7995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1726 Bywood St SE Canton Ohio 44707 1164644610 per plan Cut out fuselage bottom -in sheet hard balsa exact shape length shown top view Glue -in triangle stock lami nated side walls Lay bottom sheet over plan cut out glue Fl through F4 bottom sheet making sure center former across width bottom sheet Glue fuselage side walls form ers bottom sheet making sure shorter -in wall sheet outside lap joint existing -in Lite Ply fuselage HT-2001 building brand new HT-2002 make outside fuselage wall full length -in Lite Ply lapping -in sheet balsa inside wall -in ply outside fuselage wall point add 3M sheet balsa canopy floor forward top -in triangle stock glued fuselage walls Next block up nose hatch pieces sheet balsa solid block glue place Cut HT-2001 nose off old F4 bulkhead sure remove radio first Cut -in Lite Ply fuselage wall shape shown plans remove balsa planking fuselage up F5 Secure new nose onto HT 2001 HT-2002 will begin emerge its cocoon building HT-2002 scratch forebody assembly created conjunction rest fuselage above nacelle/fuselage split line Carve sand forebody match existing contour HT-2001 atF5 shape satisfactory cut away radio hatch fuselage walls leaving small angled portion just behind end canopy F2 can now hollowed fit radio nose F4 can removed entirely gets way youre installing radio Add hardwood canard nose gear pivot blocks point secured radio hatch i6-rn-dia pin aft section protrudes F5 sliding pin mounted fixed piece just behind canopy sliding pin slides out now engine running must secured small piece tape before flying canopy taken rear portion 12- 13-in Sig bubble canopy available just about hobby shop direct Sig glue canopies rather cut trim very close fit mating surfaces use matching color trim MonoKote secure heat trim MonoKote iron better seal both acetate underlying MonoKote forebody enhances illusion model future Air Force fighter Its can dream cant small ventral fins cut hard -in sheet balsa secured bottom center vertical tail-mounting rails CyA Angle ventrals out about 100 lower nacelle same vertical tails done improve ground clearance improve airflow over inboard side No changes made wings except deletion wing-tip sidewinders kept breaking off fins rough end runway removing appeared make no dif ference flight performance vertical tails canard also remain same aft fuselage must slightly modified accept new fan unit Cut larger hole top deck cylinder head cut out area inside upper inner wall tuned pipe see plans photographs remove ver tical support brace depending engine used either shorten lengthen throttle pushrod can accom plished few hours RK-740 fan unit amazing engi neering achievement Mr Kress Kress Technology active fan design field since its infancy has designed fan much smaller diameter its com petitors yet offers same thrust output approximately 7 lb primary intent behind design maintain same size RK-20 Except necessary addition longer larger-diameter tuned pipe constraint has met RK-740 can retrofitted very few modifications aircraft designed RK-20 instructions assem bling fan quite explicit photos descriptions should help explain assembly OS Max 46 YR DF engine power plant choice time writing three engine choices possible further modification K&B front rear rotor 75cc OS Max 46 VRDF ordering sure specify engine intended Assuming choose OS did what needs done sembling engine/carburetor en gine mount will notice righthand beam must ground away semicircle shape idle-stop screw carburetor must grind about Y32-in deep -in-dia grinding tool successfully install engine beams beams also must chamfered top slightly per instructions fit slightly greater width 05 versus K&B Washers under engine bolts must filed flush beams ensure interfere aluminum shroud engine body dished fuel tank also chosen necessary use Macs Products Wizzard tuned pipe some method getting vent/pressure line top tank required solved problem piece curved 3A2-in OD brass tubing inserted tank nipples positioned reached top crease dished tank HotStuffed place inside Note tank has approximately 6-oz ca pacity very much fuel 46 cu high-rpm fan engine am currently getting three minutes high-speed flight very 166 Model Aviation little fuel reserve would suggest 2-to 4-oz feeder tank installed aft radio section supplement integral tank Pipe pressure adequate am told feed main tank auxiliary tank have yet try throttle extension shaft must made get belicrank outside fan shell easily fabricated brass tubing sheet brass about hours time Details plans Remember hole must provided gain access lowspeed carburetor adjustment screw located bellcrank side carburetor fit throttle extension onto carb stock black steel bellcrank rim must filed same diameter drum accomplished two notches brass extension bellcmank drum setscrew can filed Take care position brass external bellcrank correctly proper throttle actuation assembly complete will no tice top right aft stator must shortened chord leading edge accommodate throttle extension shaft order make retrofit HT 2001 little easier chose use gutted RK-20 fan shell RK-740 instead aluminum wrap provided kit cannot get fan shell Midwest Kress Technology use stock shell position plywood rings onto front aft ends simulate RK-20 hole setscrew needle valve conveniently provided extending needle valve outside fan shell nacelle suitable piece piano wire Allen wrench 6-in-dia length suit L-shaped wire does trick can spare /16-in Allen wrench use already has flat setscrew top stock needle valve Holes cylinder head needle valve fuel lines throttle extension must located drilled enlarged final assembly Notches fan shell throttle pushrod notch forward stiffener ring alignment fuselage can cut away time necessary modifications fuselage have made time trial fit fan assembly aircraft Locate hole lower nacelle half needle valve trial fit Charge batteries truck field fuel fire up set threshold push throttle firewall pull stick chest watch point its nose towards heavens Till next .... Again would like thank George Myers Bob Kress Bob Aberle especially wife proofreader moral support help making project pleasant painless success Golden Age/Berliner Continued page 84 non-flying reproductions Given basic information true modeler should able take rest way first classic series trophies pylon racing James Gordon Bennett began Reims France 1909 airplanes participating races extremely fragile Few lasted weeks after race can expect find little era Musee de lAir Le Bourget Airport north Paris has 1910 Baby Wright Racer marvelous 1913 Deperdussin mono coque Ford Museum Dearborn MI has remarkably advanced 1920 Dayton Wright Racer though never won anything pioneered retractable landing gear very modern streamlining Beginning same time Gor don Bennett lasting until 1931 great Schneider Trophy Race series seaplanes led some truly significant advances engines aerodynamics great craft flown races Supermarmne Sea Lion 1919 race still survives well hull does least Science Museum London far greater interest housed same building Supermarine S6B winner final race first flying machine top 400 mph An earlier type S6A Hall Aviation Southampton Engiand Europe hosted some pretty interesting racing during 1 930s though hardly scale Cleveland big meet Coupe Deutsch France run laps long course stressing dura bility well speed sleek dark blue Caudron racers completely dominated series extant may actually sophisticated mock-up built movie sometime after war accurate depiction Caudron 336 Right next Musee de lAir Potez 53 presumably winner 1933 race also display another great Caudron C714R might have broken world speed record war USA surviving Schnei der racer Curtiss R3C-2 Jimmy Doolittle flew victory 1925 Its display National Air & Space Mu seum Washington DC two Italian racing seaplanes left era Macchi M39 1926 race other spectacular Macchi Castoldi MC72 its tandem engines dual props turned 441 mph 1934 record still stands Both semiprivate collections Italy Pulitzer Trophy Races 1920 1925 purely military event pro duced some colorful early racersthe Curtiss Army Navy bi planes screaming V-12 engines classy lines Sadly thats left wing panel Curtiss R-6 US ELLERS NEW 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THP 1266778 136778 14677128 1567 16678 NEW *1 J PRICE 299 379 479 689 989 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833A456 8334568 84566/27 t 9456677/ 1045667 106W8W 106EW 11 4677/778 SW 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 f September 1986 167 THE LEADER IN COM PETITION PRICE 149 149 179 189 199 199 209 209 219 229 229 239 239 279 279 279 349 459 659 969 989 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5N279 8I 6778 299 SERIES 400C 866777289 97289 responding advertisers mention read about Model Aviation W WIDE BLADE EW EXTRA WIDE N NARROW

NO OCR TEXT 1 IN WUIU UT WflUfU U WUU U 90 Model Avpti vufuIUn Imeter mu SPARE airplaa 60a Ian irpiane cties matter Ho oi au paved iii os vertically e yet slowi r thats t thai u uie O combination burns uj ye nui ibel Kfleyre ones zcoun whichwi er 1984 02 ii just w et real jet UI MOLWi onversioa NO OCR TEXT NO OCR TEXT Full-Size Plans Available. See Page 170 SEE S,EEH 0 PASS SHEET BELLCPANCVFDA VERTICAL TAIL SODEPED SIHAND SPAUST AVEEL OSLAPVANE OFLONITIA SOP VIEDSASH FLLEAS CLTHWAH Ip WAL AIC S GLEHA TLPAES PIPE 2 -LBWALL lASSO2A rSIHAP BAIHIND -----N5---U FAD SF SEHA TAIL PASSEASLETINS HAILS ANS 55 GLASS T AND HATTOS SHEA WINS SLAFALESF INSSF AALS AFT SF FH 5 found necessary starter cone engages slightly off center began rattling around inlet uncontrol lably fractured 46 sheet balsa internal wall number places exhaust duct glassed order stiffen entire aft fuselage torsion small section top centerline exhaust duct removed accommodate larger tuned pipe used RK-740 vertical cross brace removed same reason lower nacelle hatch extended facilitate re moval fan unit its longer tuned pipe rubberband fan-unit-hold-down absolutely necessary intend keep fan unit inside aircraft during entire flight about mo ment increase aileron wire size replacement Nyrods cables required eliminate aileron flutter problem Flight testing Anticipations excep tional flight performance high after briefly experimenting modified HT 2001 aircraft gray aircraft new forebody First flights aircraft engine yet broken no pipe pressure essential optimum engine performance showed exceptional climb rate -throttle position go-round response generally found propellerdriven aircraft Unfortunately testing curtailed dead-stick landing terrain resembled face moon stepped HT-2002 afore mentioned refinements except strength ened nacelle hatch hold-down attachment Twenty seconds flight full throttle heard severe airframe vibration Did throw blade Did pick up some sort foreign matter runway continued fly aircraft few seconds until noticed deepening profile Left bottom side partiaiiyassembied fan unit shows needle valve protruding trom tfle inner engine snroud aluminum tube needle valve extended point small Allen wrench ora piece 1/16 music wire bentto Lehapeand held place Allen setscrew located top stock needle valve Right RK-20 foreground RK-740 nearly identical size Slight differences between pose no problem making direct substitution RK-740 planes previously equipped RK20 96 Model Aviation C PASS BLOODDOUTESILEASS DNA SANE APES EILSDJPUSAAOOSTSHS WINS SIDESOFAIS H PPEUSEASE FILES LTA STEPS SF OS HASS OUTSIDEAELISSESWV SAEU AL SLADAHPLT PUTT ANDHP SF OH FLYNAIFLELAVESEALASSO HHSLE NATE AL L 555 S FAAPEHS S SIT LOPE ALA NESSAAOAHST NALEW STsEAAISE SPELT OFTMANTlES HWCA 0 52 HASHINGES TSP VIEW5L5 5 OHS ALA SPINLAOFDA TSP HF IS C 6S OFTFT LAPD ITHASP HAIPSFAD TV VTESPODAPT TEE AL SHEA LAPHIIS CAPE -EI FL. P ALCAHAKBFLF IDF SANSF5HA5P5 BED flSEPT FINSHADS SHEET PFLIAASSSPLID BALSA VEATILA. Ak HINTING ASKHASP 5555 SAPS BALSATAB VIEW UDOSEDED 55 HsASS, ASLSWED HEAP POPTIONSEH 31$AMESLS55____________________________________________________________[v32][b17941085113000]] HGP OS END SF AIPISSES SOTE HEWOAF 54 AFTEDFAA ETc EUSEASE OS IOHPETED SAFA POD*A S BALSA IPSAFA 0 ODD NOSE SEAS ISUS APSOSNALSELVOS TO ESSE HI-TECH 2002 $ SAW LISP ESTE LFFT GODS SHIPTEO LOS CAHI2A 005 BAIS OLAP eatw acsItv CoIAerAAT SESOTFO OUT ONE OFALSD SF OAFSYOAARA SMAVO 02 FLOSSINGP P EUASS SODESSPHLCF SEEAAMVBPS OACAVO FOP ALAOAAA IAodor oa-o-s Full-Size Plans Available. See Page 170 C T DAMNT C STALl MED BALSAA AINEAAN TIPSTODD C AOl SE B AATNM AIDE AAEAON -AAI AASATOASNE DAD BAN CANADA TIAANARI SACTI NC-' MED BANA P PACT ASA BAASE VTCZZVE~TUVNICAiZDA A~2N CENTAM FINT-LETAN ACNE AL ALA ICATB PAD B MA N CA EPANT ADA SAC N TE S ALA MASHES NTA SALT TAA C NI N TAN N C AALL1 BAA8 DL ALEAS TA P P EATENS N TAPEAT TAAI ANBC Al MANC PlAN BJNN AS A3B ME TALE BANSA TE INCL TA C N TAA Al ESAN TEA 9CC A ILCAN S BA PET N CARAT C TI N INNA AL AC AMAMME EcH2Oo2 D lower part aircraft surmised fan unit just about part company its mount throttled back immediately headed tarmac still under complete control throt tle slowly leaving airplane along fan responding Just 58 seconds after lift-off no Im Mr Spock George Myers timing event video camera HT-2002 safely runway lower nacelle fan unit scraping ground Inspection model showed port-side nacelle hold-down screw missing right-side bracket broken off nacelle MonoKote material bridging gap barely holding front nacelle fan unit onto aircraft other reason fan did exit completely tuned pipe extends slightly past end nacelle hung up horizontal cross brace difference weight between RK-740 fan RK-20 probably too much two screws securing nacelle causing fan leave aircraft high-G turn solution problem aforementioned rubberband hold-down takes load off two #4 sheet metal screws now secure lower nacellenot fan fan unit finally secured airframe HT-2002 returned field flight testing Continued page 165 Left Rubberbands through screw hooks have held fan place since first flight Right Retrofitting RK-740 previously-built HT-2001 requires bit minor surgeryte aft Internal duct Top centerline inner wall removed ailowforthe largertuned pipe September 1986 97 urn gray dark green camouflage top fin spinner Curtiss blue lettering trim made MonoKote roundels red num bers white Make canopy thin plastic epoxy-glue fuselage Outline canopy thin strips MonoKote aileron flap outlines black MonoKote Final assembly Glue wing fuselage Pass lead-out wires through wingtip line guide tie Attach nylon control horn elevator hookup pushrod Attach 3-in wheels main gear 1-in wheel tail gear Attach 11-6 prop 2-in spinner engine airplane now complete sure balance model point shown plans RC Hi-Tech 2002/Hunt Continued page 97 next flight proceeded uneventfully until dived aircraft maximum speed high-speed flyby camera just about point aircraft pitched downward heard loud buzzing sound above engine/pipe noise After landing inspected aircraft found nothing unusualno nicked blades noth ing obviously loose fan unit itself Since noise started aircraft pitched nose down reasoned fan blades might have stalled theory seemed have merit argument being fan inlet below fuselage being shielded canard wing obstructing airflow fan causing blades stall high rpm Another observation strengthened theory soon noise occurred aircraft slowed like hit brick wall nose well down would expect rapid descent blades stalled thrust forward speed would significantly reduced Returning home expecting cut cheater hole Eee Gads top fuselage found real problem specting MonoKote aileron hinge found either torn completely separated wing both left right aileron tips Assuming severe aileron flutter could cause proceeded stiffen entire aileron con trol system included previously mentioned replacement /32 wire torque rod -in wire replacement Nyrods cable Subsequent flights showed modification alleviated flutter problem Now problems have remedied does fly Fast smooth slow power Takeoffs gorounds rival overpowered sport ships Unfortunately wing loading ap proaching 30 oz/sq ft aircraft must handled gingerly during dead-stick landings will stall wing tip spin like heavy Scale model will notice loss pitch authority have found during few dead-stick landings have perform nose hard keep up already slightly up may seem strange against con ventional flying practices must keep nose level slightly high during approach order perform flared deadstick landing aircraft other condition should aware engine cah overheat left throttle position sitting motionless ground Since cylin der head entirely out wake fan forward motion friend have flown pusher-type aircraft have very likely experienced problem yourself Construction/modifications Construction HT-2002 almost identical HT-200 1 SO will describe changes will also spend some time des cribing construction RK-740 fan unit peculiar engine used OS Max 46 YR DF its installation HT 2002 new forebody constructed -in sheet well solid block balsa Cut out two inboard two out board -in sheet balsa fuselage sides laminate gap-filling cyanoacrylate CyA inboard sheet full length F5 outboard sheet foreshortened September1986 165 H0Y Horn' Old Timer _ s 8 GAs OQOEL l4adL RO leERs -1941 BROOKLYN DODGER 56 Cabin EWEST Retail $52 95**INTRODUCTORY PRICE5 $3900 1938 Record Breaker 96 $6056 1939 Zipper $555356 1936 Kloud King 63 $4236 1941 Brigidier 56 $0076 1991 Super Quaker 78 $7276 1949 So Long 5t1$3636 1936 Buccaneer 60 $5996 1936 Clipper MKI 72$4156 1937 Dallaire 108 $7516 193$ Miss America 64 $7196 1941 Playboy Sr 60 $51 16 1941 Playboy Jr 54 $3116 1938 Powerhouse 64 $53 56 1940 Sailplane 78 $6476 1936 Trenton Terror 72 $4076 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events FE & R/C feature highest quality machine cut & sanded ports Superior Competition sheet strip wood wire & windom material Plans orig FE models easily convertible 3ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 76 5sI $1800 Midway Model GNOME RIG Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 58 Span$2400 Midway Model FAST EDDIE Aerobatic /05 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$32l0 Leisure PLAYBOY SR 67 Gear 05 Elect $3060 Astro ASTRO SPORT 37 Direct 05 Elect $2200 Leisure WASP 37 Direct 05 Electrics$2200 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 84 40-454 stroke $6476 Oks/Midway DENNY JR 72 Alum Camel$6396 Oks/Midway BUZZARD BOMBSHELL 72$0190 PULL LINE OP ELECTRIC SYSTEMS & Parts Avail SKIPPING & HANDLING 64 Page CATALOGUE Up $800 add $150$200 PP/lot Class $801 $2060 add $225 copy will sent $2001 $4500 add $300 freewhen requested$4001 $7000 add $350 order over $7060 add $406 HOBBY HORN CA Addressees add 6% tax 15173 Moran St IA] Send MO Visa/MC#oEapl PO Box 2212 Check allow up 30 Weatwinster Ca 92684 days CK clearanceI 7141 6938311 COD Exact Charges plus $1 50 Hdl Cash Onlyl lAft Hrs 17141 89512031 ROUSH KITS TaylorCraft Full span 108 Area 1670 Clipped 84 Area 1300 Power 758o 12 Cu Balaa&PIy 2 lbs $11995 Super Sport 120 Span 73 Area 960 Power 758012 Cu B $9995 Super Kwik Fli Span 70 Area 927 Power 750012 Cu $8996 Two Ugly Stick Span 70 Area 1290 Power 750012 CO lB $9996 Jr Sticks Span 72 Area 1080 Power 758012 Cu B $7995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1726 Bywood St SE Canton Ohio 44707 1164644610 per plan Cut out fuselage bottom -in sheet hard balsa exact shape length shown top view Glue -in triangle stock lami nated side walls Lay bottom sheet over plan cut out glue Fl through F4 bottom sheet making sure center former across width bottom sheet Glue fuselage side walls form ers bottom sheet making sure shorter -in wall sheet outside lap joint existing -in Lite Ply fuselage HT-2001 building brand new HT-2002 make outside fuselage wall full length -in Lite Ply lapping -in sheet balsa inside wall -in ply outside fuselage wall point add 3M sheet balsa canopy floor forward top -in triangle stock glued fuselage walls Next block up nose hatch pieces sheet balsa solid block glue place Cut HT-2001 nose off old F4 bulkhead sure remove radio first Cut -in Lite Ply fuselage wall shape shown plans remove balsa planking fuselage up F5 Secure new nose onto HT 2001 HT-2002 will begin emerge its cocoon building HT-2002 scratch forebody assembly created conjunction rest fuselage above nacelle/fuselage split line Carve sand forebody match existing contour HT-2001 atF5 shape satisfactory cut away radio hatch fuselage walls leaving small angled portion just behind end canopy F2 can now hollowed fit radio nose F4 can removed entirely gets way youre installing radio Add hardwood canard nose gear pivot blocks point secured radio hatch i6-rn-dia pin aft section protrudes F5 sliding pin mounted fixed piece just behind canopy sliding pin slides out now engine running must secured small piece tape before flying canopy taken rear portion 12- 13-in Sig bubble canopy available just about hobby shop direct Sig glue canopies rather cut trim very close fit mating surfaces use matching color trim MonoKote secure heat trim MonoKote iron better seal both acetate underlying MonoKote forebody enhances illusion model future Air Force fighter Its can dream cant small ventral fins cut hard -in sheet balsa secured bottom center vertical tail-mounting rails CyA Angle ventrals out about 100 lower nacelle same vertical tails done improve ground clearance improve airflow over inboard side No changes made wings except deletion wing-tip sidewinders kept breaking off fins rough end runway removing appeared make no dif ference flight performance vertical tails canard also remain same aft fuselage must slightly modified accept new fan unit Cut larger hole top deck cylinder head cut out area inside upper inner wall tuned pipe see plans photographs remove ver tical support brace depending engine used either shorten lengthen throttle pushrod can accom plished few hours RK-740 fan unit amazing engi neering achievement Mr Kress Kress Technology active fan design field since its infancy has designed fan much smaller diameter its com petitors yet offers same thrust output approximately 7 lb primary intent behind design maintain same size RK-20 Except necessary addition longer larger-diameter tuned pipe constraint has met RK-740 can retrofitted very few modifications aircraft designed RK-20 instructions assem bling fan quite explicit photos descriptions should help explain assembly OS Max 46 YR DF engine power plant choice time writing three engine choices possible further modification K&B front rear rotor 75cc OS Max 46 VRDF ordering sure specify engine intended Assuming choose OS did what needs done sembling engine/carburetor en gine mount will notice righthand beam must ground away semicircle shape idle-stop screw carburetor must grind about Y32-in deep -in-dia grinding tool successfully install engine beams beams also must chamfered top slightly per instructions fit slightly greater width 05 versus K&B Washers under engine bolts must filed flush beams ensure interfere aluminum shroud engine body dished fuel tank also chosen necessary use Macs Products Wizzard tuned pipe some method getting vent/pressure line top tank required solved problem piece curved 3A2-in OD brass tubing inserted tank nipples positioned reached top crease dished tank HotStuffed place inside Note tank has approximately 6-oz ca pacity very much fuel 46 cu high-rpm fan engine am currently getting three minutes high-speed flight very 166 Model Aviation little fuel reserve would suggest 2-to 4-oz feeder tank installed aft radio section supplement integral tank Pipe pressure adequate am told feed main tank auxiliary tank have yet try throttle extension shaft must made get belicrank outside fan shell easily fabricated brass tubing sheet brass about hours time Details plans Remember hole must provided gain access lowspeed carburetor adjustment screw located bellcrank side carburetor fit throttle extension onto carb stock black steel bellcrank rim must filed same diameter drum accomplished two notches brass extension bellcmank drum setscrew can filed Take care position brass external bellcrank correctly proper throttle actuation assembly complete will no tice top right aft stator must shortened chord leading edge accommodate throttle extension shaft order make retrofit HT 2001 little easier chose use gutted RK-20 fan shell RK-740 instead aluminum wrap provided kit cannot get fan shell Midwest Kress Technology use stock shell position plywood rings onto front aft ends simulate RK-20 hole setscrew needle valve conveniently provided extending needle valve outside fan shell nacelle suitable piece piano wire Allen wrench 6-in-dia length suit L-shaped wire does trick can spare /16-in Allen wrench use already has flat setscrew top stock needle valve Holes cylinder head needle valve fuel lines throttle extension must located drilled enlarged final assembly Notches fan shell throttle pushrod notch forward stiffener ring alignment fuselage can cut away time necessary modifications fuselage have made time trial fit fan assembly aircraft Locate hole lower nacelle half needle valve trial fit Charge batteries truck field fuel fire up set threshold push throttle firewall pull stick chest watch point its nose towards heavens Till next .... Again would like thank George Myers Bob Kress Bob Aberle especially wife proofreader moral support help making project pleasant painless success Golden Age/Berliner Continued page 84 non-flying reproductions Given basic information true modeler should able take rest way first classic series trophies pylon racing James Gordon Bennett began Reims France 1909 airplanes participating races extremely fragile Few lasted weeks after race can expect find little era Musee de lAir Le Bourget Airport north Paris has 1910 Baby Wright Racer marvelous 1913 Deperdussin mono coque Ford Museum Dearborn MI has remarkably advanced 1920 Dayton Wright Racer though never won anything pioneered retractable landing gear very modern streamlining Beginning same time Gor don Bennett lasting until 1931 great Schneider Trophy Race series seaplanes led some truly significant advances engines aerodynamics great craft flown races Supermarmne Sea Lion 1919 race still survives well hull does least Science Museum London far greater interest housed same building Supermarine S6B winner final race first flying machine top 400 mph An earlier type S6A Hall Aviation Southampton Engiand Europe hosted some pretty interesting racing during 1 930s though hardly scale Cleveland big meet Coupe Deutsch France run laps long course stressing dura bility well speed sleek dark blue Caudron racers completely dominated series extant may actually sophisticated mock-up built movie sometime after war accurate depiction Caudron 336 Right next Musee de lAir Potez 53 presumably winner 1933 race also display another great Caudron C714R might have broken world speed record war USA surviving Schnei der racer Curtiss R3C-2 Jimmy Doolittle flew victory 1925 Its display National Air & Space Mu seum Washington DC two Italian racing seaplanes left era Macchi M39 1926 race other spectacular Macchi Castoldi MC72 its tandem engines dual props turned 441 mph 1934 record still stands Both semiprivate collections Italy Pulitzer Trophy Races 1920 1925 purely military event pro duced some colorful early racersthe Curtiss Army Navy bi planes screaming V-12 engines classy lines Sadly thats left wing panel Curtiss R-6 US ELLERS NEW 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THP 1266778 136778 14677128 1567 16678 NEW *1 J PRICE 299 379 479 689 989 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833A456 8334568 84566/27 t 9456677/ 1045667 106W8W 106EW 11 4677/778 SW 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 f September 1986 167 THE LEADER IN COM PETITION PRICE 149 149 179 189 199 199 209 209 219 229 229 239 239 279 279 279 349 459 659 969 989 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5N279 8I 6778 299 SERIES 400C 866777289 97289 responding advertisers mention read about Model Aviation W WIDE BLADE EW EXTRA WIDE N NARROW

NO OCR TEXT 1 IN WUIU UT WflUfU U WUU U 90 Model Avpti vufuIUn Imeter mu SPARE airplaa 60a Ian irpiane cties matter Ho oi au paved iii os vertically e yet slowi r thats t thai u uie O combination burns uj ye nui ibel Kfleyre ones zcoun whichwi er 1984 02 ii just w et real jet UI MOLWi onversioa NO OCR TEXT NO OCR TEXT Full-Size Plans Available. See Page 170 SEE S,EEH 0 PASS SHEET BELLCPANCVFDA VERTICAL TAIL SODEPED SIHAND SPAUST AVEEL OSLAPVANE OFLONITIA SOP VIEDSASH FLLEAS CLTHWAH Ip WAL AIC S GLEHA TLPAES PIPE 2 -LBWALL lASSO2A rSIHAP BAIHIND -----N5---U FAD SF SEHA TAIL PASSEASLETINS HAILS ANS 55 GLASS T AND HATTOS SHEA WINS SLAFALESF INSSF AALS AFT SF FH 5 found necessary starter cone engages slightly off center began rattling around inlet uncontrol lably fractured 46 sheet balsa internal wall number places exhaust duct glassed order stiffen entire aft fuselage torsion small section top centerline exhaust duct removed accommodate larger tuned pipe used RK-740 vertical cross brace removed same reason lower nacelle hatch extended facilitate re moval fan unit its longer tuned pipe rubberband fan-unit-hold-down absolutely necessary intend keep fan unit inside aircraft during entire flight about mo ment increase aileron wire size replacement Nyrods cables required eliminate aileron flutter problem Flight testing Anticipations excep tional flight performance high after briefly experimenting modified HT 2001 aircraft gray aircraft new forebody First flights aircraft engine yet broken no pipe pressure essential optimum engine performance showed exceptional climb rate -throttle position go-round response generally found propellerdriven aircraft Unfortunately testing curtailed dead-stick landing terrain resembled face moon stepped HT-2002 afore mentioned refinements except strength ened nacelle hatch hold-down attachment Twenty seconds flight full throttle heard severe airframe vibration Did throw blade Did pick up some sort foreign matter runway continued fly aircraft few seconds until noticed deepening profile Left bottom side partiaiiyassembied fan unit shows needle valve protruding trom tfle inner engine snroud aluminum tube needle valve extended point small Allen wrench ora piece 1/16 music wire bentto Lehapeand held place Allen setscrew located top stock needle valve Right RK-20 foreground RK-740 nearly identical size Slight differences between pose no problem making direct substitution RK-740 planes previously equipped RK20 96 Model Aviation C PASS BLOODDOUTESILEASS DNA SANE APES EILSDJPUSAAOOSTSHS WINS SIDESOFAIS H PPEUSEASE FILES LTA STEPS SF OS HASS OUTSIDEAELISSESWV SAEU AL SLADAHPLT PUTT ANDHP SF OH FLYNAIFLELAVESEALASSO HHSLE NATE AL L 555 S FAAPEHS S SIT LOPE ALA NESSAAOAHST NALEW STsEAAISE SPELT OFTMANTlES HWCA 0 52 HASHINGES TSP VIEW5L5 5 OHS ALA SPINLAOFDA TSP HF IS C 6S OFTFT LAPD ITHASP HAIPSFAD TV VTESPODAPT TEE AL SHEA LAPHIIS CAPE -EI FL. P ALCAHAKBFLF IDF SANSF5HA5P5 BED flSEPT FINSHADS SHEET PFLIAASSSPLID BALSA VEATILA. Ak HINTING ASKHASP 5555 SAPS BALSATAB VIEW UDOSEDED 55 HsASS, ASLSWED HEAP POPTIONSEH 31$AMESLS55____________________________________________________________[v32][b17941085113000]] HGP OS END SF AIPISSES SOTE HEWOAF 54 AFTEDFAA ETc EUSEASE OS IOHPETED SAFA POD*A S BALSA IPSAFA 0 ODD NOSE SEAS ISUS APSOSNALSELVOS TO ESSE HI-TECH 2002 $ SAW LISP ESTE LFFT GODS SHIPTEO LOS CAHI2A 005 BAIS OLAP eatw acsItv CoIAerAAT SESOTFO OUT ONE OFALSD SF OAFSYOAARA SMAVO 02 FLOSSINGP P EUASS SODESSPHLCF SEEAAMVBPS OACAVO FOP ALAOAAA IAodor oa-o-s Full-Size Plans Available. See Page 170 C T DAMNT C STALl MED BALSAA AINEAAN TIPSTODD C AOl SE B AATNM AIDE AAEAON -AAI AASATOASNE DAD BAN CANADA TIAANARI SACTI NC-' MED BANA P PACT ASA BAASE VTCZZVE~TUVNICAiZDA A~2N CENTAM FINT-LETAN ACNE AL ALA ICATB PAD B MA N CA EPANT ADA SAC N TE S ALA MASHES NTA SALT TAA C NI N TAN N C AALL1 BAA8 DL ALEAS TA P P EATENS N TAPEAT TAAI ANBC Al MANC PlAN BJNN AS A3B ME TALE BANSA TE INCL TA C N TAA Al ESAN TEA 9CC A ILCAN S BA PET N CARAT C TI N INNA AL AC AMAMME EcH2Oo2 D lower part aircraft surmised fan unit just about part company its mount throttled back immediately headed tarmac still under complete control throt tle slowly leaving airplane along fan responding Just 58 seconds after lift-off no Im Mr Spock George Myers timing event video camera HT-2002 safely runway lower nacelle fan unit scraping ground Inspection model showed port-side nacelle hold-down screw missing right-side bracket broken off nacelle MonoKote material bridging gap barely holding front nacelle fan unit onto aircraft other reason fan did exit completely tuned pipe extends slightly past end nacelle hung up horizontal cross brace difference weight between RK-740 fan RK-20 probably too much two screws securing nacelle causing fan leave aircraft high-G turn solution problem aforementioned rubberband hold-down takes load off two #4 sheet metal screws now secure lower nacellenot fan fan unit finally secured airframe HT-2002 returned field flight testing Continued page 165 Left Rubberbands through screw hooks have held fan place since first flight Right Retrofitting RK-740 previously-built HT-2001 requires bit minor surgeryte aft Internal duct Top centerline inner wall removed ailowforthe largertuned pipe September 1986 97 urn gray dark green camouflage top fin spinner Curtiss blue lettering trim made MonoKote roundels red num bers white Make canopy thin plastic epoxy-glue fuselage Outline canopy thin strips MonoKote aileron flap outlines black MonoKote Final assembly Glue wing fuselage Pass lead-out wires through wingtip line guide tie Attach nylon control horn elevator hookup pushrod Attach 3-in wheels main gear 1-in wheel tail gear Attach 11-6 prop 2-in spinner engine airplane now complete sure balance model point shown plans RC Hi-Tech 2002/Hunt Continued page 97 next flight proceeded uneventfully until dived aircraft maximum speed high-speed flyby camera just about point aircraft pitched downward heard loud buzzing sound above engine/pipe noise After landing inspected aircraft found nothing unusualno nicked blades noth ing obviously loose fan unit itself Since noise started aircraft pitched nose down reasoned fan blades might have stalled theory seemed have merit argument being fan inlet below fuselage being shielded canard wing obstructing airflow fan causing blades stall high rpm Another observation strengthened theory soon noise occurred aircraft slowed like hit brick wall nose well down would expect rapid descent blades stalled thrust forward speed would significantly reduced Returning home expecting cut cheater hole Eee Gads top fuselage found real problem specting MonoKote aileron hinge found either torn completely separated wing both left right aileron tips Assuming severe aileron flutter could cause proceeded stiffen entire aileron con trol system included previously mentioned replacement /32 wire torque rod -in wire replacement Nyrods cable Subsequent flights showed modification alleviated flutter problem Now problems have remedied does fly Fast smooth slow power Takeoffs gorounds rival overpowered sport ships Unfortunately wing loading ap proaching 30 oz/sq ft aircraft must handled gingerly during dead-stick landings will stall wing tip spin like heavy Scale model will notice loss pitch authority have found during few dead-stick landings have perform nose hard keep up already slightly up may seem strange against con ventional flying practices must keep nose level slightly high during approach order perform flared deadstick landing aircraft other condition should aware engine cah overheat left throttle position sitting motionless ground Since cylin der head entirely out wake fan forward motion friend have flown pusher-type aircraft have very likely experienced problem yourself Construction/modifications Construction HT-2002 almost identical HT-200 1 SO will describe changes will also spend some time des cribing construction RK-740 fan unit peculiar engine used OS Max 46 YR DF its installation HT 2002 new forebody constructed -in sheet well solid block balsa Cut out two inboard two out board -in sheet balsa fuselage sides laminate gap-filling cyanoacrylate CyA inboard sheet full length F5 outboard sheet foreshortened September1986 165 H0Y Horn' Old Timer _ s 8 GAs OQOEL l4adL RO leERs -1941 BROOKLYN DODGER 56 Cabin EWEST Retail $52 95**INTRODUCTORY PRICE5 $3900 1938 Record Breaker 96 $6056 1939 Zipper $555356 1936 Kloud King 63 $4236 1941 Brigidier 56 $0076 1991 Super Quaker 78 $7276 1949 So Long 5t1$3636 1936 Buccaneer 60 $5996 1936 Clipper MKI 72$4156 1937 Dallaire 108 $7516 193$ Miss America 64 $7196 1941 Playboy Sr 60 $51 16 1941 Playboy Jr 54 $3116 1938 Powerhouse 64 $53 56 1940 Sailplane 78 $6476 1936 Trenton Terror 72 $4076 1940 Ranger 46$3196 1939 Korda Wake 44 $1916 l939Mercury 72 6 kits qualify SAM events FE & R/C feature highest quality machine cut & sanded ports Superior Competition sheet strip wood wire & windom material Plans orig FE models easily convertible 3ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 76 5sI $1800 Midway Model GNOME RIG Hand Launch Glider$2400 Jolly Models FLINGER R/C HLG 58 Span$2400 Midway Model FAST EDDIE Aerobatic /05 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$32l0 Leisure PLAYBOY SR 67 Gear 05 Elect $3060 Astro ASTRO SPORT 37 Direct 05 Elect $2200 Leisure WASP 37 Direct 05 Electrics$2200 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 84 40-454 stroke $6476 Oks/Midway DENNY JR 72 Alum Camel$6396 Oks/Midway BUZZARD BOMBSHELL 72$0190 PULL LINE OP ELECTRIC SYSTEMS & Parts Avail SKIPPING & HANDLING 64 Page CATALOGUE Up $800 add $150$200 PP/lot Class $801 $2060 add $225 copy will sent $2001 $4500 add $300 freewhen requested$4001 $7000 add $350 order over $7060 add $406 HOBBY HORN CA Addressees add 6% tax 15173 Moran St IA] Send MO Visa/MC#oEapl PO Box 2212 Check allow up 30 Weatwinster Ca 92684 days CK clearanceI 7141 6938311 COD Exact Charges plus $1 50 Hdl Cash Onlyl lAft Hrs 17141 89512031 ROUSH KITS TaylorCraft Full span 108 Area 1670 Clipped 84 Area 1300 Power 758o 12 Cu Balaa&PIy 2 lbs $11995 Super Sport 120 Span 73 Area 960 Power 758012 Cu B $9995 Super Kwik Fli Span 70 Area 927 Power 750012 Cu $8996 Two Ugly Stick Span 70 Area 1290 Power 750012 CO lB $9996 Jr Sticks Span 72 Area 1080 Power 758012 Cu B $7995 Direct Sales Only Prices Include Shipping Send $100 Catalog ROUSH MFG 1726 Bywood St SE Canton Ohio 44707 1164644610 per plan Cut out fuselage bottom -in sheet hard balsa exact shape length shown top view Glue -in triangle stock lami nated side walls Lay bottom sheet over plan cut out glue Fl through F4 bottom sheet making sure center former across width bottom sheet Glue fuselage side walls form ers bottom sheet making sure shorter -in wall sheet outside lap joint existing -in Lite Ply fuselage HT-2001 building brand new HT-2002 make outside fuselage wall full length -in Lite Ply lapping -in sheet balsa inside wall -in ply outside fuselage wall point add 3M sheet balsa canopy floor forward top -in triangle stock glued fuselage walls Next block up nose hatch pieces sheet balsa solid block glue place Cut HT-2001 nose off old F4 bulkhead sure remove radio first Cut -in Lite Ply fuselage wall shape shown plans remove balsa planking fuselage up F5 Secure new nose onto HT 2001 HT-2002 will begin emerge its cocoon building HT-2002 scratch forebody assembly created conjunction rest fuselage above nacelle/fuselage split line Carve sand forebody match existing contour HT-2001 atF5 shape satisfactory cut away radio hatch fuselage walls leaving small angled portion just behind end canopy F2 can now hollowed fit radio nose F4 can removed entirely gets way youre installing radio Add hardwood canard nose gear pivot blocks point secured radio hatch i6-rn-dia pin aft section protrudes F5 sliding pin mounted fixed piece just behind canopy sliding pin slides out now engine running must secured small piece tape before flying canopy taken rear portion 12- 13-in Sig bubble canopy available just about hobby shop direct Sig glue canopies rather cut trim very close fit mating surfaces use matching color trim MonoKote secure heat trim MonoKote iron better seal both acetate underlying MonoKote forebody enhances illusion model future Air Force fighter Its can dream cant small ventral fins cut hard -in sheet balsa secured bottom center vertical tail-mounting rails CyA Angle ventrals out about 100 lower nacelle same vertical tails done improve ground clearance improve airflow over inboard side No changes made wings except deletion wing-tip sidewinders kept breaking off fins rough end runway removing appeared make no dif ference flight performance vertical tails canard also remain same aft fuselage must slightly modified accept new fan unit Cut larger hole top deck cylinder head cut out area inside upper inner wall tuned pipe see plans photographs remove ver tical support brace depending engine used either shorten lengthen throttle pushrod can accom plished few hours RK-740 fan unit amazing engi neering achievement Mr Kress Kress Technology active fan design field since its infancy has designed fan much smaller diameter its com petitors yet offers same thrust output approximately 7 lb primary intent behind design maintain same size RK-20 Except necessary addition longer larger-diameter tuned pipe constraint has met RK-740 can retrofitted very few modifications aircraft designed RK-20 instructions assem bling fan quite explicit photos descriptions should help explain assembly OS Max 46 YR DF engine power plant choice time writing three engine choices possible further modification K&B front rear rotor 75cc OS Max 46 VRDF ordering sure specify engine intended Assuming choose OS did what needs done sembling engine/carburetor en gine mount will notice righthand beam must ground away semicircle shape idle-stop screw carburetor must grind about Y32-in deep -in-dia grinding tool successfully install engine beams beams also must chamfered top slightly per instructions fit slightly greater width 05 versus K&B Washers under engine bolts must filed flush beams ensure interfere aluminum shroud engine body dished fuel tank also chosen necessary use Macs Products Wizzard tuned pipe some method getting vent/pressure line top tank required solved problem piece curved 3A2-in OD brass tubing inserted tank nipples positioned reached top crease dished tank HotStuffed place inside Note tank has approximately 6-oz ca pacity very much fuel 46 cu high-rpm fan engine am currently getting three minutes high-speed flight very 166 Model Aviation little fuel reserve would suggest 2-to 4-oz feeder tank installed aft radio section supplement integral tank Pipe pressure adequate am told feed main tank auxiliary tank have yet try throttle extension shaft must made get belicrank outside fan shell easily fabricated brass tubing sheet brass about hours time Details plans Remember hole must provided gain access lowspeed carburetor adjustment screw located bellcrank side carburetor fit throttle extension onto carb stock black steel bellcrank rim must filed same diameter drum accomplished two notches brass extension bellcmank drum setscrew can filed Take care position brass external bellcrank correctly proper throttle actuation assembly complete will no tice top right aft stator must shortened chord leading edge accommodate throttle extension shaft order make retrofit HT 2001 little easier chose use gutted RK-20 fan shell RK-740 instead aluminum wrap provided kit cannot get fan shell Midwest Kress Technology use stock shell position plywood rings onto front aft ends simulate RK-20 hole setscrew needle valve conveniently provided extending needle valve outside fan shell nacelle suitable piece piano wire Allen wrench 6-in-dia length suit L-shaped wire does trick can spare /16-in Allen wrench use already has flat setscrew top stock needle valve Holes cylinder head needle valve fuel lines throttle extension must located drilled enlarged final assembly Notches fan shell throttle pushrod notch forward stiffener ring alignment fuselage can cut away time necessary modifications fuselage have made time trial fit fan assembly aircraft Locate hole lower nacelle half needle valve trial fit Charge batteries truck field fuel fire up set threshold push throttle firewall pull stick chest watch point its nose towards heavens Till next .... Again would like thank George Myers Bob Kress Bob Aberle especially wife proofreader moral support help making project pleasant painless success Golden Age/Berliner Continued page 84 non-flying reproductions Given basic information true modeler should able take rest way first classic series trophies pylon racing James Gordon Bennett began Reims France 1909 airplanes participating races extremely fragile Few lasted weeks after race can expect find little era Musee de lAir Le Bourget Airport north Paris has 1910 Baby Wright Racer marvelous 1913 Deperdussin mono coque Ford Museum Dearborn MI has remarkably advanced 1920 Dayton Wright Racer though never won anything pioneered retractable landing gear very modern streamlining Beginning same time Gor don Bennett lasting until 1931 great Schneider Trophy Race series seaplanes led some truly significant advances engines aerodynamics great craft flown races Supermarmne Sea Lion 1919 race still survives well hull does least Science Museum London far greater interest housed same building Supermarine S6B winner final race first flying machine top 400 mph An earlier type S6A Hall Aviation Southampton Engiand Europe hosted some pretty interesting racing during 1 930s though hardly scale Cleveland big meet Coupe Deutsch France run laps long course stressing dura bility well speed sleek dark blue Caudron racers completely dominated series extant may actually sophisticated mock-up built movie sometime after war accurate depiction Caudron 336 Right next Musee de lAir Potez 53 presumably winner 1933 race also display another great Caudron C714R might have broken world speed record war USA surviving Schnei der racer Curtiss R3C-2 Jimmy Doolittle flew victory 1925 Its display National Air & Space Mu seum Washington DC two Italian racing seaplanes left era Macchi M39 1926 race other spectacular Macchi Castoldi MC72 its tandem engines dual props turned 441 mph 1934 record still stands Both semiprivate collections Italy Pulitzer Trophy Races 1920 1925 purely military event pro duced some colorful early racersthe Curtiss Army Navy bi planes screaming V-12 engines classy lines Sadly thats left wing panel Curtiss R-6 US ELLERS NEW 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THP 1266778 136778 14677128 1567 16678 NEW *1 J PRICE 299 379 479 689 989 PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 534 634 72833A456 8334568 84566/27 t 9456677/ 1045667 106W8W 106EW 11 4677/778 SW 116EW 1167 124W 125W 1256 1356 1456 1556 164N 16678 f September 1986 167 THE LEADER IN COM PETITION PRICE 149 149 179 189 199 199 209 209 219 229 229 239 239 279 279 279 349 459 659 969 989 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5N279 8I 6778 299 SERIES 400C 866777289 97289 responding advertisers mention read about Model Aviation W WIDE BLADE EW EXTRA WIDE N NARROW