THE Heliboys have us al two years During time have proven flying qualities ac cumulating impressive list contest wins Novice Expert Heliboy capable both mild wild flying emphasis course has aerobatic qualities tried point out December column feel aerobatic machines should considered experienced pilots also us less experience responsiveness aerobatic machines does necessarily offset stability particularly true Heliboy Heliboy 60-powered collec tive-pitch trainer helicopter hap pens capable wild aerobatics right out box kit contains parts necessary fly machine either Huller rigid rotor system Belier system used aero batic machine suppose Hiller sys tem intended beginner after flying aerobatic version Im convinced beginner could have equal success using Beller mixers start very little difference stability two systems addition accessory balancing weights attached flybar responsive aerobatic system can tamed set weights Part No 755 may attached removed field conditions experience improve set improves windy weather sta bility two sets maximum due centrifugal forces can used beginner give maximum stability kit called Bell 222 actually framework scale Bell 222 fuse lage available beautiful addition photo shows potential Heliboy Bell 222 clined Heliboy Bell 222 trainer kit complete less radio engine muffler finishing materials fers machine may completed very short order Results starter shaft misalignment Note Modification servo carriersshowing reduced notches worn shaft bearings due side width necessary clear canopy Also shown loads approximate center shaft lower variation radio installation below notch above clutch Shaft pressed lower carrier although neater restricts clutch turned 180 degrees before photo access glow plug special long taken assembly helicopter wrench orovided kitW R Hartneas Sanford NC Although basic framework sim ilar complexity advanced erec tor set rules still applyread structions instructions supplied construction machine ex cellent bit scattered kit cluded 16-page booklet German structions photos illustrations 12 pages English instructions two pages factory supplemental informa tion four additional pages sup plements provided supplier additional information supplied Min iature Aircraft Supply four pages invaluable particularly regard ing attention engine clutch alignments will detail construction Heliboy instructions photographs supplements very clear Before go might add cause instructions written stages parts packaged according ly possible build certain sub-as semblies out sequence found ad vantageous build several components during lunch hours brought home add machine readLeft side Heliboy showing special muffler available pushrod routing engine fore aft cyclic bellcrank ing instructions sequencing con struction correspond available at-home time already short con struction time may further reduced instance during lunch hours built collective toggle Stage 4 tail rotor gear box Stage 6 tail rotor sembly Stage 10 main rotor head Stage 11 allowed at-home time major construction tasks like waiting glue paint dry machine may easily completed week evenings first six stages construction can go very quickly few hints may help First before beginning stage little time spent preparing metal parts described supple ment sheets will improve appearance machine side plates should sanded along edges around cut-outs remove sharp edges Continued page 102 May1979 29 Simple alignment jig set up check starter shaft runout See text important construc tion step dial-indicator would helpful adequate results areachieved jig shown similar set-up using vise rather test stand Right side showing pushrods right left cyclic bellcrank collec tive toggle tail rotor bellcrank Note tail rotor servo dropped slightly T/R pushrod would exit below right collective pushrod Bends pushrods should minimal reduce possibility flexing particularly cyclic collective controls Bell 222 fuselage turns Heliboy besutiful scale model Richard Smith LaHabra CA won 2nd place MACS last year Landing gear apparent AMA Nationals DiCK MATH1S DESiGN GROUP TAKES CIL STUNT VERY SERIOUSLY. $5500 GENESiS 40 56 SPAN BY 1978 0/C BOB HUNT DESiGN GROUP BOX 338 / STiLETTO 6 SPAN BY 1976 WIC LES MCDONALD LONE OAK TEXAS 75453 214/662-5326 quencies saturation point reached 1976 last SOAR Nats 206 pre-registrations logged 27 MHz still used about 20% fliers 27 MHz impractical RC Sailplane use has requested contestants prepared avail themselves frequencies order allow qualified fliers par ticipate especially directed fliers Last Chance contest SOAR has given reins host Tournament club has assured Leagues front office contest will conducted same degree attention dedication past SOAR Nats Incidentally site Lewis University same site facilities old SOAR Nats now Romeoville Illinois address So its now Lewis/Romeoville instead Lewis/Lockport Same site new address Great Race IV has also nounced SOAR its scheduled Saturday July 21the day before th LSF activities major change course has still will over 76 kilometers countryside set up 1976 big change will no relaunching course However team will allowed launch times sees fit launch site travel far can 76 km course Longest distance wins case tie best time wins means specialized chase vehicles launching equipment will required individual teams what its worth course area has provided lift has produced doz ens two-hour flights three-hour flights four-hour 32 minute flight Cross-country flights have flown up 32 miles planning committee event regards chances slim make complete circuit single launch Yet course has flown well under three hours So conditions ripe knows course basically rectangular shape truest sense goal-and-return course once get half way around it isand besides its same conditions So tune up favorite ship ships prepare Great Race IV Itll heckuva lot less work past com peting teams launching equip ment timers will provided SOAR further information con tact Neil Liptak CD 325 ONeil St Joliet IL 60436 AMA Nationals year Lincoln Nebraska site has labeled ex cellent keep wagon packed circle calendar geo graphy says could attract largest Soaring body ever attend Well thats quite contest calendar Attend could qualify gypsy year Dan Pruss Rt 2 Box 490 Plain field IL 60544 RC Helicopters/Chesney continued page 29 side frames skid struts re inforcement profiles skids tail boom may polished using Mag Brite prepared painting using Scotch Brite Mag Brite Scotch Brite may picked up auto accessory store machine black anodized rather painted am told anodized finish may cause radio prob lems due insulating properties mind Id recommend pol ishing metal rather painting anodizing assemble parts just come box little problem tight ening set screw swash-plate ball No 452 because upper bearing block cut too deep inner race bearing below outer edge block remove block side frames remove bearing sand top block slightly bring down correct level Check correct problem before starting Stage 3 sure tighten set screw swash plate ball securely otherwise shaft may slip downward Stage 5 found easier install drive shaft 351 tail tube 350 before attaching gear bearing assembly drive shaft Grease drive shaft lightly before sembly gear bearing assembly positioned between side frames tail tube drive shaft mated adjusted per instructions Stage 6 assembly tail rotor gear box no sweat make sure pack bearings assemble sealed side out use Lock Tite gear set screws Set gear back lash dollar bill fill trans mission case grease assemble per instructions Close lower holes gear case screws pro vided dont screw too far Before installing tail fin pre-as sembled bearing block T/R control assembly remove screw con trol arm install two washers between arm bearing block washers will provide additional clear ance arm avoid interference between control arm under side transmission box sure reposition control rod avoid bind ing well tail skid provided has proven little flimsy may made rigid bracing wire 102 Model Aviation COONEY cockpit coaming EXTRUDEO FLEXIBLE BLACK VINYL GLUABLE & PAINTABLE TWO SIZES 3/32 & 3/16 DIA FOURMOST RACING PRODUCTS ForestAvenue Or97116 SAVE $150 ON YOUR NEXT RADIO Buy DitaI Commander Flite Pack Kit Save Money out Compromising Quality Performance Three Servo Options Two Receiver Options Kit Prices Start $7495 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 [ACE mI Em] BOX SuE HIGGINSVILLE MO 64037 GET ORGANIZED ~ Hems set 4 stardy tdes hos oserP o 4 years Yoro teasote eragazinee 4 MAG FILES $495 rVgnm%oREPLATECH DON INDUSTRIESJINTERNATIONAL INC BI po Box 358-KPLANS DOVER NH 03a2o4e500 NIC KENZIE HWY VIOA OREGON 974CR screw left front transmission bottom skid Bend brace wire conform skid wrap solder joint modification appeared some time ago Don Chapmans Hover column RCM has saved several dollars sincethanks Don Dons mod used landing tail skid will cause original skid flex allow tail rotors touch ground will almost certainly chew up plastic drive gear main gear 148 time Dons mod over $1400 now costs $850 Still expensive item invest few cents wire solder help save Perhaps neatest thing about Heliboy engine starting system using starter extension available Miniature Aircraft Supply see Oct 78 MA system allows quick en gine starts partially flooded engine extension available separ ately $695 fits Sullivan Sono tronix Kavan starters part numbers SlOb 501010 KlOllrespec tively convenience direct start system well worth effort should given proper alignment starter shaft clutch assembly factory instructions did stress importance proper alignment fan starter shaft clutch assembly supplement sheet pro vided MAS did check align starter shaft run out simple jig such test stand shown photo vise wire can used Before installing clutch starter shaft fan fan must concentric engine shaft therefore fan hole starter shaft must enlarged should done lathe dial indicated rather simply reamed out quick check con centricity fan may made using test stand wire gauge laying gauge just touch outer edge fan bobbing fan reference point would show up engine turned over problem may cor rected local machine shop lathe dial indicator simply ro tating fan slightly engine shaft retightening nut Now fan concentric clutch starter shaft run-out largely function bolts holding clutch fan torqued Using jig again after attaching clutch fan lay wire gauge center start er shaft again rotate engine shaft shaft bobs off center refer ence point run-out excessive Loosen retighten bolts clutch evenly until notice able run out about center reference wire Once zero run-out accomplished coat starter shaft light coat grease install clutch housing bearing blocks per instructions Stage 7 Continued attention alignments necessary Stage 8 After aligning metal gear teeth clutch housing plastic gear described instructions tighten bearing blocks tighten engine mount screws through fuselage Allow engine float turn starter shaft back forth check engine mounts aligned properly tighten engine mount screws taking care twist engine either side front rear Check assure no binding occurs between clutch housing clutch M/R shaft turned impor tant steps smooth operation helicopter take time Now install spacer spinner starter shaft tighten set screw remove spinner covering bearing piece paper file flat set screw contacts shaft reinstall balance instructions cover ing fuel tank tail rotor main rotor head stabilizer bar mixing lever Beller mixers preliminary set up clear cabin structure described Stage 14 will almost certainly interfere canopy constructed using servo carriers provided carriers too wide may cut narrower new parts cut 1/8 ply shown photos supplement sheet suggested cutting side horizontal servo carriers note lined through though recommended havent problems cutting carriers just make sure enough room radio stallation Continuing cabin structure sure align upper lower servo supports servos stalled carriers pushrods may routed straight possible Watch out interference engine needle valve routing pushrods collective toggle tail rotor bellcrank static set up machine detailed very well however no instruction regarding necessity properly adjusting dynamic blade tracking see March Helicopters concerned about omission first start-up machine resulted perfect trackwhat luck adjustments must made other blade first Heliboy adjust ball links coming down collective lever pitch arm Beller mixer used adjustment upper links will require adjust ment lower ball link coming swash plate mixer adjust ment lower cyclic rod will op posite upper cyclic rod order keep mixing level horizon tal half stick position noted static set-up Stage 1 3 static adjustments including tail-rotor mix work out very close least has case both machines tail-rotor bellcrank may need positioned top toggle slot mm mix position done bellcrank must cut provide clearance main gear dynamic checks accomplished corrected within five minutes first engine start up will point out flown first Heliboy times before some told sounded though turning proper rpm tach confirmed main rotor speed below recommended 1550 1700 rpm relied sound 104 Model Aviation KELLY PROPS 9X7 8X8 8X8 8X7 7X6 6X 5 6X5 7X4 72hour 10days Any prop Nashville type Slow Rat Gillott Regular Regular 7 X 55 Willoughby Goodyear graphite FAI Combat shipping money orders personal checks stock money will KELLY PRODUCTS INC PO Box 38 Western Springs Il 60558 p650 $500 $4 75 $475 $375 375 500 $375 cashier s checks promptly refunded machine tendency overpitch due unusually high main rotor speed compared some earlier machines de creased pitch increased M/R speed improved stability first Heli boy maneuvers smoother Id recommend checking rpm tach will say did experience problems flying too much pitch second machine has tached 1600 rpm seems happy Since Heliboys have around quite awhile Im sure column has offered surprises over ali impressions machine favorable regarding flight perform ance machine little fragile ever Factory improvements forth coming will beef up obvious weaknesses such need strong er fuselage side plates rotorhead side plates main gear also being redesigned improve gear mesh tail rotor drive gear serve double duty event mishap new main gear Im told will allow user flip over event first set tail rotor drive teeth wiped out addition coming improve ments prices have reduced kit well common ly used spare parts machine parts available direct Miniature Aircraft Supply East Coast S C Modeler Central Gorham Associates West Coast local hobby shop Dont get order starter extension electric starter order first kit addition may wish order special muffler available muf fler fits easily within Bell 222 fuse lage Seamco adapter fit en gine will necessary Now flying Heliboys other RC helicopters about passing some secrets make easy rest us See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 RC Old Timer/Mathews continueg page 30 section similar peg fuselage interior Hoo boy drawings illustrate gusset tech nique thought brand new revolutionary read another mag long ago Perhaps Russells technique recently rediscovered gussets run between wing rib trailing edge cut strips 1/8 sq balsa rather sheet run 45 degree angle cement ends Vulcan lends itself nicely RC conversion since empemiage hinge points obvious cabin has adequate access radio equipment would size range Super Buccaneer Shereshaw Cumulus recom mended power 9 10 cc glow unit would strongly recommend laminated bass wcod tip outlines well music wire wing pins running appropriate sized brass tubing Although one-piece wing could used would wise measure shop door space car trunk method wing stab hold down illustrated photo would also much satisfactory designed Mr Russell Another appealing modifi cation would involve scaling Vulcan modest size say 70% 3 4 cc powerplant second Vulcan photo magnificent view Pat Mardells rare Kiwi motor quote Peter Chinn MAN Feb 1979 Designed Edgar T Westburty Kiwi bore stroke 1000 X 1123 giving displacement 088 3 new_releases Bucker TUNGMEISTER india control 020 rubbherb clukev power 38 span 12 channel RIC tree flight 51495 wingspan GSeagulJPror rubber available soon C02 power SEE YOURsend 25$ DEALER NOWcatalog FLYLINE MODELS INC 2O2000flRAAENAFIS 10 FAIRFAX VIRGINIA 22031703 573-203* 1448 cc vertical overhead valves operated through pushrods rear mounted camshaft driven spur gears Kiwi never commercially pro duced Westburty designed home construction notes drawings published ModelEngineer long editor Bob Wischer states Kiwi output low portion flight spent gaining altitude about 200 feet after five May1979 105 11/2 scale great schoolyard scale TRAVEL AIR by
Edition: Model Aviation - 1979/05
Page Numbers: 28, 29, 102, 104, 105
THE Heliboys have us al two years During time have proven flying qualities ac cumulating impressive list contest wins Novice Expert Heliboy capable both mild wild flying emphasis course has aerobatic qualities tried point out December column feel aerobatic machines should considered experienced pilots also us less experience responsiveness aerobatic machines does necessarily offset stability particularly true Heliboy Heliboy 60-powered collec tive-pitch trainer helicopter hap pens capable wild aerobatics right out box kit contains parts necessary fly machine either Huller rigid rotor system Belier system used aero batic machine suppose Hiller sys tem intended beginner after flying aerobatic version Im convinced beginner could have equal success using Beller mixers start very little difference stability two systems addition accessory balancing weights attached flybar responsive aerobatic system can tamed set weights Part No 755 may attached removed field conditions experience improve set improves windy weather sta bility two sets maximum due centrifugal forces can used beginner give maximum stability kit called Bell 222 actually framework scale Bell 222 fuse lage available beautiful addition photo shows potential Heliboy Bell 222 clined Heliboy Bell 222 trainer kit complete less radio engine muffler finishing materials fers machine may completed very short order Results starter shaft misalignment Note Modification servo carriersshowing reduced notches worn shaft bearings due side width necessary clear canopy Also shown loads approximate center shaft lower variation radio installation below notch above clutch Shaft pressed lower carrier although neater restricts clutch turned 180 degrees before photo access glow plug special long taken assembly helicopter wrench orovided kitW R Hartneas Sanford NC Although basic framework sim ilar complexity advanced erec tor set rules still applyread structions instructions supplied construction machine ex cellent bit scattered kit cluded 16-page booklet German structions photos illustrations 12 pages English instructions two pages factory supplemental informa tion four additional pages sup plements provided supplier additional information supplied Min iature Aircraft Supply four pages invaluable particularly regard ing attention engine clutch alignments will detail construction Heliboy instructions photographs supplements very clear Before go might add cause instructions written stages parts packaged according ly possible build certain sub-as semblies out sequence found ad vantageous build several components during lunch hours brought home add machine readLeft side Heliboy showing special muffler available pushrod routing engine fore aft cyclic bellcrank ing instructions sequencing con struction correspond available at-home time already short con struction time may further reduced instance during lunch hours built collective toggle Stage 4 tail rotor gear box Stage 6 tail rotor sembly Stage 10 main rotor head Stage 11 allowed at-home time major construction tasks like waiting glue paint dry machine may easily completed week evenings first six stages construction can go very quickly few hints may help First before beginning stage little time spent preparing metal parts described supple ment sheets will improve appearance machine side plates should sanded along edges around cut-outs remove sharp edges Continued page 102 May1979 29 Simple alignment jig set up check starter shaft runout See text important construc tion step dial-indicator would helpful adequate results areachieved jig shown similar set-up using vise rather test stand Right side showing pushrods right left cyclic bellcrank collec tive toggle tail rotor bellcrank Note tail rotor servo dropped slightly T/R pushrod would exit below right collective pushrod Bends pushrods should minimal reduce possibility flexing particularly cyclic collective controls Bell 222 fuselage turns Heliboy besutiful scale model Richard Smith LaHabra CA won 2nd place MACS last year Landing gear apparent AMA Nationals DiCK MATH1S DESiGN GROUP TAKES CIL STUNT VERY SERIOUSLY. $5500 GENESiS 40 56 SPAN BY 1978 0/C BOB HUNT DESiGN GROUP BOX 338 / STiLETTO 6 SPAN BY 1976 WIC LES MCDONALD LONE OAK TEXAS 75453 214/662-5326 quencies saturation point reached 1976 last SOAR Nats 206 pre-registrations logged 27 MHz still used about 20% fliers 27 MHz impractical RC Sailplane use has requested contestants prepared avail themselves frequencies order allow qualified fliers par ticipate especially directed fliers Last Chance contest SOAR has given reins host Tournament club has assured Leagues front office contest will conducted same degree attention dedication past SOAR Nats Incidentally site Lewis University same site facilities old SOAR Nats now Romeoville Illinois address So its now Lewis/Romeoville instead Lewis/Lockport Same site new address Great Race IV has also nounced SOAR its scheduled Saturday July 21the day before th LSF activities major change course has still will over 76 kilometers countryside set up 1976 big change will no relaunching course However team will allowed launch times sees fit launch site travel far can 76 km course Longest distance wins case tie best time wins means specialized chase vehicles launching equipment will required individual teams what its worth course area has provided lift has produced doz ens two-hour flights three-hour flights four-hour 32 minute flight Cross-country flights have flown up 32 miles planning committee event regards chances slim make complete circuit single launch Yet course has flown well under three hours So conditions ripe knows course basically rectangular shape truest sense goal-and-return course once get half way around it isand besides its same conditions So tune up favorite ship ships prepare Great Race IV Itll heckuva lot less work past com peting teams launching equip ment timers will provided SOAR further information con tact Neil Liptak CD 325 ONeil St Joliet IL 60436 AMA Nationals year Lincoln Nebraska site has labeled ex cellent keep wagon packed circle calendar geo graphy says could attract largest Soaring body ever attend Well thats quite contest calendar Attend could qualify gypsy year Dan Pruss Rt 2 Box 490 Plain field IL 60544 RC Helicopters/Chesney continued page 29 side frames skid struts re inforcement profiles skids tail boom may polished using Mag Brite prepared painting using Scotch Brite Mag Brite Scotch Brite may picked up auto accessory store machine black anodized rather painted am told anodized finish may cause radio prob lems due insulating properties mind Id recommend pol ishing metal rather painting anodizing assemble parts just come box little problem tight ening set screw swash-plate ball No 452 because upper bearing block cut too deep inner race bearing below outer edge block remove block side frames remove bearing sand top block slightly bring down correct level Check correct problem before starting Stage 3 sure tighten set screw swash plate ball securely otherwise shaft may slip downward Stage 5 found easier install drive shaft 351 tail tube 350 before attaching gear bearing assembly drive shaft Grease drive shaft lightly before sembly gear bearing assembly positioned between side frames tail tube drive shaft mated adjusted per instructions Stage 6 assembly tail rotor gear box no sweat make sure pack bearings assemble sealed side out use Lock Tite gear set screws Set gear back lash dollar bill fill trans mission case grease assemble per instructions Close lower holes gear case screws pro vided dont screw too far Before installing tail fin pre-as sembled bearing block T/R control assembly remove screw con trol arm install two washers between arm bearing block washers will provide additional clear ance arm avoid interference between control arm under side transmission box sure reposition control rod avoid bind ing well tail skid provided has proven little flimsy may made rigid bracing wire 102 Model Aviation COONEY cockpit coaming EXTRUDEO FLEXIBLE BLACK VINYL GLUABLE & PAINTABLE TWO SIZES 3/32 & 3/16 DIA FOURMOST RACING PRODUCTS ForestAvenue Or97116 SAVE $150 ON YOUR NEXT RADIO Buy DitaI Commander Flite Pack Kit Save Money out Compromising Quality Performance Three Servo Options Two Receiver Options Kit Prices Start $7495 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 [ACE mI Em] BOX SuE HIGGINSVILLE MO 64037 GET ORGANIZED ~ Hems set 4 stardy tdes hos oserP o 4 years Yoro teasote eragazinee 4 MAG FILES $495 rVgnm%oREPLATECH DON INDUSTRIESJINTERNATIONAL INC BI po Box 358-KPLANS DOVER NH 03a2o4e500 NIC KENZIE HWY VIOA OREGON 974CR screw left front transmission bottom skid Bend brace wire conform skid wrap solder joint modification appeared some time ago Don Chapmans Hover column RCM has saved several dollars sincethanks Don Dons mod used landing tail skid will cause original skid flex allow tail rotors touch ground will almost certainly chew up plastic drive gear main gear 148 time Dons mod over $1400 now costs $850 Still expensive item invest few cents wire solder help save Perhaps neatest thing about Heliboy engine starting system using starter extension available Miniature Aircraft Supply see Oct 78 MA system allows quick en gine starts partially flooded engine extension available separ ately $695 fits Sullivan Sono tronix Kavan starters part numbers SlOb 501010 KlOllrespec tively convenience direct start system well worth effort should given proper alignment starter shaft clutch assembly factory instructions did stress importance proper alignment fan starter shaft clutch assembly supplement sheet pro vided MAS did check align starter shaft run out simple jig such test stand shown photo vise wire can used Before installing clutch starter shaft fan fan must concentric engine shaft therefore fan hole starter shaft must enlarged should done lathe dial indicated rather simply reamed out quick check con centricity fan may made using test stand wire gauge laying gauge just touch outer edge fan bobbing fan reference point would show up engine turned over problem may cor rected local machine shop lathe dial indicator simply ro tating fan slightly engine shaft retightening nut Now fan concentric clutch starter shaft run-out largely function bolts holding clutch fan torqued Using jig again after attaching clutch fan lay wire gauge center start er shaft again rotate engine shaft shaft bobs off center refer ence point run-out excessive Loosen retighten bolts clutch evenly until notice able run out about center reference wire Once zero run-out accomplished coat starter shaft light coat grease install clutch housing bearing blocks per instructions Stage 7 Continued attention alignments necessary Stage 8 After aligning metal gear teeth clutch housing plastic gear described instructions tighten bearing blocks tighten engine mount screws through fuselage Allow engine float turn starter shaft back forth check engine mounts aligned properly tighten engine mount screws taking care twist engine either side front rear Check assure no binding occurs between clutch housing clutch M/R shaft turned impor tant steps smooth operation helicopter take time Now install spacer spinner starter shaft tighten set screw remove spinner covering bearing piece paper file flat set screw contacts shaft reinstall balance instructions cover ing fuel tank tail rotor main rotor head stabilizer bar mixing lever Beller mixers preliminary set up clear cabin structure described Stage 14 will almost certainly interfere canopy constructed using servo carriers provided carriers too wide may cut narrower new parts cut 1/8 ply shown photos supplement sheet suggested cutting side horizontal servo carriers note lined through though recommended havent problems cutting carriers just make sure enough room radio stallation Continuing cabin structure sure align upper lower servo supports servos stalled carriers pushrods may routed straight possible Watch out interference engine needle valve routing pushrods collective toggle tail rotor bellcrank static set up machine detailed very well however no instruction regarding necessity properly adjusting dynamic blade tracking see March Helicopters concerned about omission first start-up machine resulted perfect trackwhat luck adjustments must made other blade first Heliboy adjust ball links coming down collective lever pitch arm Beller mixer used adjustment upper links will require adjust ment lower ball link coming swash plate mixer adjust ment lower cyclic rod will op posite upper cyclic rod order keep mixing level horizon tal half stick position noted static set-up Stage 1 3 static adjustments including tail-rotor mix work out very close least has case both machines tail-rotor bellcrank may need positioned top toggle slot mm mix position done bellcrank must cut provide clearance main gear dynamic checks accomplished corrected within five minutes first engine start up will point out flown first Heliboy times before some told sounded though turning proper rpm tach confirmed main rotor speed below recommended 1550 1700 rpm relied sound 104 Model Aviation KELLY PROPS 9X7 8X8 8X8 8X7 7X6 6X 5 6X5 7X4 72hour 10days Any prop Nashville type Slow Rat Gillott Regular Regular 7 X 55 Willoughby Goodyear graphite FAI Combat shipping money orders personal checks stock money will KELLY PRODUCTS INC PO Box 38 Western Springs Il 60558 p650 $500 $4 75 $475 $375 375 500 $375 cashier s checks promptly refunded machine tendency overpitch due unusually high main rotor speed compared some earlier machines de creased pitch increased M/R speed improved stability first Heli boy maneuvers smoother Id recommend checking rpm tach will say did experience problems flying too much pitch second machine has tached 1600 rpm seems happy Since Heliboys have around quite awhile Im sure column has offered surprises over ali impressions machine favorable regarding flight perform ance machine little fragile ever Factory improvements forth coming will beef up obvious weaknesses such need strong er fuselage side plates rotorhead side plates main gear also being redesigned improve gear mesh tail rotor drive gear serve double duty event mishap new main gear Im told will allow user flip over event first set tail rotor drive teeth wiped out addition coming improve ments prices have reduced kit well common ly used spare parts machine parts available direct Miniature Aircraft Supply East Coast S C Modeler Central Gorham Associates West Coast local hobby shop Dont get order starter extension electric starter order first kit addition may wish order special muffler available muf fler fits easily within Bell 222 fuse lage Seamco adapter fit en gine will necessary Now flying Heliboys other RC helicopters about passing some secrets make easy rest us See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 RC Old Timer/Mathews continueg page 30 section similar peg fuselage interior Hoo boy drawings illustrate gusset tech nique thought brand new revolutionary read another mag long ago Perhaps Russells technique recently rediscovered gussets run between wing rib trailing edge cut strips 1/8 sq balsa rather sheet run 45 degree angle cement ends Vulcan lends itself nicely RC conversion since empemiage hinge points obvious cabin has adequate access radio equipment would size range Super Buccaneer Shereshaw Cumulus recom mended power 9 10 cc glow unit would strongly recommend laminated bass wcod tip outlines well music wire wing pins running appropriate sized brass tubing Although one-piece wing could used would wise measure shop door space car trunk method wing stab hold down illustrated photo would also much satisfactory designed Mr Russell Another appealing modifi cation would involve scaling Vulcan modest size say 70% 3 4 cc powerplant second Vulcan photo magnificent view Pat Mardells rare Kiwi motor quote Peter Chinn MAN Feb 1979 Designed Edgar T Westburty Kiwi bore stroke 1000 X 1123 giving displacement 088 3 new_releases Bucker TUNGMEISTER india control 020 rubbherb clukev power 38 span 12 channel RIC tree flight 51495 wingspan GSeagulJPror rubber available soon C02 power SEE YOURsend 25$ DEALER NOWcatalog FLYLINE MODELS INC 2O2000flRAAENAFIS 10 FAIRFAX VIRGINIA 22031703 573-203* 1448 cc vertical overhead valves operated through pushrods rear mounted camshaft driven spur gears Kiwi never commercially pro duced Westburty designed home construction notes drawings published ModelEngineer long editor Bob Wischer states Kiwi output low portion flight spent gaining altitude about 200 feet after five May1979 105 11/2 scale great schoolyard scale TRAVEL AIR by
Edition: Model Aviation - 1979/05
Page Numbers: 28, 29, 102, 104, 105
THE Heliboys have us al two years During time have proven flying qualities ac cumulating impressive list contest wins Novice Expert Heliboy capable both mild wild flying emphasis course has aerobatic qualities tried point out December column feel aerobatic machines should considered experienced pilots also us less experience responsiveness aerobatic machines does necessarily offset stability particularly true Heliboy Heliboy 60-powered collec tive-pitch trainer helicopter hap pens capable wild aerobatics right out box kit contains parts necessary fly machine either Huller rigid rotor system Belier system used aero batic machine suppose Hiller sys tem intended beginner after flying aerobatic version Im convinced beginner could have equal success using Beller mixers start very little difference stability two systems addition accessory balancing weights attached flybar responsive aerobatic system can tamed set weights Part No 755 may attached removed field conditions experience improve set improves windy weather sta bility two sets maximum due centrifugal forces can used beginner give maximum stability kit called Bell 222 actually framework scale Bell 222 fuse lage available beautiful addition photo shows potential Heliboy Bell 222 clined Heliboy Bell 222 trainer kit complete less radio engine muffler finishing materials fers machine may completed very short order Results starter shaft misalignment Note Modification servo carriersshowing reduced notches worn shaft bearings due side width necessary clear canopy Also shown loads approximate center shaft lower variation radio installation below notch above clutch Shaft pressed lower carrier although neater restricts clutch turned 180 degrees before photo access glow plug special long taken assembly helicopter wrench orovided kitW R Hartneas Sanford NC Although basic framework sim ilar complexity advanced erec tor set rules still applyread structions instructions supplied construction machine ex cellent bit scattered kit cluded 16-page booklet German structions photos illustrations 12 pages English instructions two pages factory supplemental informa tion four additional pages sup plements provided supplier additional information supplied Min iature Aircraft Supply four pages invaluable particularly regard ing attention engine clutch alignments will detail construction Heliboy instructions photographs supplements very clear Before go might add cause instructions written stages parts packaged according ly possible build certain sub-as semblies out sequence found ad vantageous build several components during lunch hours brought home add machine readLeft side Heliboy showing special muffler available pushrod routing engine fore aft cyclic bellcrank ing instructions sequencing con struction correspond available at-home time already short con struction time may further reduced instance during lunch hours built collective toggle Stage 4 tail rotor gear box Stage 6 tail rotor sembly Stage 10 main rotor head Stage 11 allowed at-home time major construction tasks like waiting glue paint dry machine may easily completed week evenings first six stages construction can go very quickly few hints may help First before beginning stage little time spent preparing metal parts described supple ment sheets will improve appearance machine side plates should sanded along edges around cut-outs remove sharp edges Continued page 102 May1979 29 Simple alignment jig set up check starter shaft runout See text important construc tion step dial-indicator would helpful adequate results areachieved jig shown similar set-up using vise rather test stand Right side showing pushrods right left cyclic bellcrank collec tive toggle tail rotor bellcrank Note tail rotor servo dropped slightly T/R pushrod would exit below right collective pushrod Bends pushrods should minimal reduce possibility flexing particularly cyclic collective controls Bell 222 fuselage turns Heliboy besutiful scale model Richard Smith LaHabra CA won 2nd place MACS last year Landing gear apparent AMA Nationals DiCK MATH1S DESiGN GROUP TAKES CIL STUNT VERY SERIOUSLY. $5500 GENESiS 40 56 SPAN BY 1978 0/C BOB HUNT DESiGN GROUP BOX 338 / STiLETTO 6 SPAN BY 1976 WIC LES MCDONALD LONE OAK TEXAS 75453 214/662-5326 quencies saturation point reached 1976 last SOAR Nats 206 pre-registrations logged 27 MHz still used about 20% fliers 27 MHz impractical RC Sailplane use has requested contestants prepared avail themselves frequencies order allow qualified fliers par ticipate especially directed fliers Last Chance contest SOAR has given reins host Tournament club has assured Leagues front office contest will conducted same degree attention dedication past SOAR Nats Incidentally site Lewis University same site facilities old SOAR Nats now Romeoville Illinois address So its now Lewis/Romeoville instead Lewis/Lockport Same site new address Great Race IV has also nounced SOAR its scheduled Saturday July 21the day before th LSF activities major change course has still will over 76 kilometers countryside set up 1976 big change will no relaunching course However team will allowed launch times sees fit launch site travel far can 76 km course Longest distance wins case tie best time wins means specialized chase vehicles launching equipment will required individual teams what its worth course area has provided lift has produced doz ens two-hour flights three-hour flights four-hour 32 minute flight Cross-country flights have flown up 32 miles planning committee event regards chances slim make complete circuit single launch Yet course has flown well under three hours So conditions ripe knows course basically rectangular shape truest sense goal-and-return course once get half way around it isand besides its same conditions So tune up favorite ship ships prepare Great Race IV Itll heckuva lot less work past com peting teams launching equip ment timers will provided SOAR further information con tact Neil Liptak CD 325 ONeil St Joliet IL 60436 AMA Nationals year Lincoln Nebraska site has labeled ex cellent keep wagon packed circle calendar geo graphy says could attract largest Soaring body ever attend Well thats quite contest calendar Attend could qualify gypsy year Dan Pruss Rt 2 Box 490 Plain field IL 60544 RC Helicopters/Chesney continued page 29 side frames skid struts re inforcement profiles skids tail boom may polished using Mag Brite prepared painting using Scotch Brite Mag Brite Scotch Brite may picked up auto accessory store machine black anodized rather painted am told anodized finish may cause radio prob lems due insulating properties mind Id recommend pol ishing metal rather painting anodizing assemble parts just come box little problem tight ening set screw swash-plate ball No 452 because upper bearing block cut too deep inner race bearing below outer edge block remove block side frames remove bearing sand top block slightly bring down correct level Check correct problem before starting Stage 3 sure tighten set screw swash plate ball securely otherwise shaft may slip downward Stage 5 found easier install drive shaft 351 tail tube 350 before attaching gear bearing assembly drive shaft Grease drive shaft lightly before sembly gear bearing assembly positioned between side frames tail tube drive shaft mated adjusted per instructions Stage 6 assembly tail rotor gear box no sweat make sure pack bearings assemble sealed side out use Lock Tite gear set screws Set gear back lash dollar bill fill trans mission case grease assemble per instructions Close lower holes gear case screws pro vided dont screw too far Before installing tail fin pre-as sembled bearing block T/R control assembly remove screw con trol arm install two washers between arm bearing block washers will provide additional clear ance arm avoid interference between control arm under side transmission box sure reposition control rod avoid bind ing well tail skid provided has proven little flimsy may made rigid bracing wire 102 Model Aviation COONEY cockpit coaming EXTRUDEO FLEXIBLE BLACK VINYL GLUABLE & PAINTABLE TWO SIZES 3/32 & 3/16 DIA FOURMOST RACING PRODUCTS ForestAvenue Or97116 SAVE $150 ON YOUR NEXT RADIO Buy DitaI Commander Flite Pack Kit Save Money out Compromising Quality Performance Three Servo Options Two Receiver Options Kit Prices Start $7495 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 [ACE mI Em] BOX SuE HIGGINSVILLE MO 64037 GET ORGANIZED ~ Hems set 4 stardy tdes hos oserP o 4 years Yoro teasote eragazinee 4 MAG FILES $495 rVgnm%oREPLATECH DON INDUSTRIESJINTERNATIONAL INC BI po Box 358-KPLANS DOVER NH 03a2o4e500 NIC KENZIE HWY VIOA OREGON 974CR screw left front transmission bottom skid Bend brace wire conform skid wrap solder joint modification appeared some time ago Don Chapmans Hover column RCM has saved several dollars sincethanks Don Dons mod used landing tail skid will cause original skid flex allow tail rotors touch ground will almost certainly chew up plastic drive gear main gear 148 time Dons mod over $1400 now costs $850 Still expensive item invest few cents wire solder help save Perhaps neatest thing about Heliboy engine starting system using starter extension available Miniature Aircraft Supply see Oct 78 MA system allows quick en gine starts partially flooded engine extension available separ ately $695 fits Sullivan Sono tronix Kavan starters part numbers SlOb 501010 KlOllrespec tively convenience direct start system well worth effort should given proper alignment starter shaft clutch assembly factory instructions did stress importance proper alignment fan starter shaft clutch assembly supplement sheet pro vided MAS did check align starter shaft run out simple jig such test stand shown photo vise wire can used Before installing clutch starter shaft fan fan must concentric engine shaft therefore fan hole starter shaft must enlarged should done lathe dial indicated rather simply reamed out quick check con centricity fan may made using test stand wire gauge laying gauge just touch outer edge fan bobbing fan reference point would show up engine turned over problem may cor rected local machine shop lathe dial indicator simply ro tating fan slightly engine shaft retightening nut Now fan concentric clutch starter shaft run-out largely function bolts holding clutch fan torqued Using jig again after attaching clutch fan lay wire gauge center start er shaft again rotate engine shaft shaft bobs off center refer ence point run-out excessive Loosen retighten bolts clutch evenly until notice able run out about center reference wire Once zero run-out accomplished coat starter shaft light coat grease install clutch housing bearing blocks per instructions Stage 7 Continued attention alignments necessary Stage 8 After aligning metal gear teeth clutch housing plastic gear described instructions tighten bearing blocks tighten engine mount screws through fuselage Allow engine float turn starter shaft back forth check engine mounts aligned properly tighten engine mount screws taking care twist engine either side front rear Check assure no binding occurs between clutch housing clutch M/R shaft turned impor tant steps smooth operation helicopter take time Now install spacer spinner starter shaft tighten set screw remove spinner covering bearing piece paper file flat set screw contacts shaft reinstall balance instructions cover ing fuel tank tail rotor main rotor head stabilizer bar mixing lever Beller mixers preliminary set up clear cabin structure described Stage 14 will almost certainly interfere canopy constructed using servo carriers provided carriers too wide may cut narrower new parts cut 1/8 ply shown photos supplement sheet suggested cutting side horizontal servo carriers note lined through though recommended havent problems cutting carriers just make sure enough room radio stallation Continuing cabin structure sure align upper lower servo supports servos stalled carriers pushrods may routed straight possible Watch out interference engine needle valve routing pushrods collective toggle tail rotor bellcrank static set up machine detailed very well however no instruction regarding necessity properly adjusting dynamic blade tracking see March Helicopters concerned about omission first start-up machine resulted perfect trackwhat luck adjustments must made other blade first Heliboy adjust ball links coming down collective lever pitch arm Beller mixer used adjustment upper links will require adjust ment lower ball link coming swash plate mixer adjust ment lower cyclic rod will op posite upper cyclic rod order keep mixing level horizon tal half stick position noted static set-up Stage 1 3 static adjustments including tail-rotor mix work out very close least has case both machines tail-rotor bellcrank may need positioned top toggle slot mm mix position done bellcrank must cut provide clearance main gear dynamic checks accomplished corrected within five minutes first engine start up will point out flown first Heliboy times before some told sounded though turning proper rpm tach confirmed main rotor speed below recommended 1550 1700 rpm relied sound 104 Model Aviation KELLY PROPS 9X7 8X8 8X8 8X7 7X6 6X 5 6X5 7X4 72hour 10days Any prop Nashville type Slow Rat Gillott Regular Regular 7 X 55 Willoughby Goodyear graphite FAI Combat shipping money orders personal checks stock money will KELLY PRODUCTS INC PO Box 38 Western Springs Il 60558 p650 $500 $4 75 $475 $375 375 500 $375 cashier s checks promptly refunded machine tendency overpitch due unusually high main rotor speed compared some earlier machines de creased pitch increased M/R speed improved stability first Heli boy maneuvers smoother Id recommend checking rpm tach will say did experience problems flying too much pitch second machine has tached 1600 rpm seems happy Since Heliboys have around quite awhile Im sure column has offered surprises over ali impressions machine favorable regarding flight perform ance machine little fragile ever Factory improvements forth coming will beef up obvious weaknesses such need strong er fuselage side plates rotorhead side plates main gear also being redesigned improve gear mesh tail rotor drive gear serve double duty event mishap new main gear Im told will allow user flip over event first set tail rotor drive teeth wiped out addition coming improve ments prices have reduced kit well common ly used spare parts machine parts available direct Miniature Aircraft Supply East Coast S C Modeler Central Gorham Associates West Coast local hobby shop Dont get order starter extension electric starter order first kit addition may wish order special muffler available muf fler fits easily within Bell 222 fuse lage Seamco adapter fit en gine will necessary Now flying Heliboys other RC helicopters about passing some secrets make easy rest us See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 RC Old Timer/Mathews continueg page 30 section similar peg fuselage interior Hoo boy drawings illustrate gusset tech nique thought brand new revolutionary read another mag long ago Perhaps Russells technique recently rediscovered gussets run between wing rib trailing edge cut strips 1/8 sq balsa rather sheet run 45 degree angle cement ends Vulcan lends itself nicely RC conversion since empemiage hinge points obvious cabin has adequate access radio equipment would size range Super Buccaneer Shereshaw Cumulus recom mended power 9 10 cc glow unit would strongly recommend laminated bass wcod tip outlines well music wire wing pins running appropriate sized brass tubing Although one-piece wing could used would wise measure shop door space car trunk method wing stab hold down illustrated photo would also much satisfactory designed Mr Russell Another appealing modifi cation would involve scaling Vulcan modest size say 70% 3 4 cc powerplant second Vulcan photo magnificent view Pat Mardells rare Kiwi motor quote Peter Chinn MAN Feb 1979 Designed Edgar T Westburty Kiwi bore stroke 1000 X 1123 giving displacement 088 3 new_releases Bucker TUNGMEISTER india control 020 rubbherb clukev power 38 span 12 channel RIC tree flight 51495 wingspan GSeagulJPror rubber available soon C02 power SEE YOURsend 25$ DEALER NOWcatalog FLYLINE MODELS INC 2O2000flRAAENAFIS 10 FAIRFAX VIRGINIA 22031703 573-203* 1448 cc vertical overhead valves operated through pushrods rear mounted camshaft driven spur gears Kiwi never commercially pro duced Westburty designed home construction notes drawings published ModelEngineer long editor Bob Wischer states Kiwi output low portion flight spent gaining altitude about 200 feet after five May1979 105 11/2 scale great schoolyard scale TRAVEL AIR by
Edition: Model Aviation - 1979/05
Page Numbers: 28, 29, 102, 104, 105
THE Heliboys have us al two years During time have proven flying qualities ac cumulating impressive list contest wins Novice Expert Heliboy capable both mild wild flying emphasis course has aerobatic qualities tried point out December column feel aerobatic machines should considered experienced pilots also us less experience responsiveness aerobatic machines does necessarily offset stability particularly true Heliboy Heliboy 60-powered collec tive-pitch trainer helicopter hap pens capable wild aerobatics right out box kit contains parts necessary fly machine either Huller rigid rotor system Belier system used aero batic machine suppose Hiller sys tem intended beginner after flying aerobatic version Im convinced beginner could have equal success using Beller mixers start very little difference stability two systems addition accessory balancing weights attached flybar responsive aerobatic system can tamed set weights Part No 755 may attached removed field conditions experience improve set improves windy weather sta bility two sets maximum due centrifugal forces can used beginner give maximum stability kit called Bell 222 actually framework scale Bell 222 fuse lage available beautiful addition photo shows potential Heliboy Bell 222 clined Heliboy Bell 222 trainer kit complete less radio engine muffler finishing materials fers machine may completed very short order Results starter shaft misalignment Note Modification servo carriersshowing reduced notches worn shaft bearings due side width necessary clear canopy Also shown loads approximate center shaft lower variation radio installation below notch above clutch Shaft pressed lower carrier although neater restricts clutch turned 180 degrees before photo access glow plug special long taken assembly helicopter wrench orovided kitW R Hartneas Sanford NC Although basic framework sim ilar complexity advanced erec tor set rules still applyread structions instructions supplied construction machine ex cellent bit scattered kit cluded 16-page booklet German structions photos illustrations 12 pages English instructions two pages factory supplemental informa tion four additional pages sup plements provided supplier additional information supplied Min iature Aircraft Supply four pages invaluable particularly regard ing attention engine clutch alignments will detail construction Heliboy instructions photographs supplements very clear Before go might add cause instructions written stages parts packaged according ly possible build certain sub-as semblies out sequence found ad vantageous build several components during lunch hours brought home add machine readLeft side Heliboy showing special muffler available pushrod routing engine fore aft cyclic bellcrank ing instructions sequencing con struction correspond available at-home time already short con struction time may further reduced instance during lunch hours built collective toggle Stage 4 tail rotor gear box Stage 6 tail rotor sembly Stage 10 main rotor head Stage 11 allowed at-home time major construction tasks like waiting glue paint dry machine may easily completed week evenings first six stages construction can go very quickly few hints may help First before beginning stage little time spent preparing metal parts described supple ment sheets will improve appearance machine side plates should sanded along edges around cut-outs remove sharp edges Continued page 102 May1979 29 Simple alignment jig set up check starter shaft runout See text important construc tion step dial-indicator would helpful adequate results areachieved jig shown similar set-up using vise rather test stand Right side showing pushrods right left cyclic bellcrank collec tive toggle tail rotor bellcrank Note tail rotor servo dropped slightly T/R pushrod would exit below right collective pushrod Bends pushrods should minimal reduce possibility flexing particularly cyclic collective controls Bell 222 fuselage turns Heliboy besutiful scale model Richard Smith LaHabra CA won 2nd place MACS last year Landing gear apparent AMA Nationals DiCK MATH1S DESiGN GROUP TAKES CIL STUNT VERY SERIOUSLY. $5500 GENESiS 40 56 SPAN BY 1978 0/C BOB HUNT DESiGN GROUP BOX 338 / STiLETTO 6 SPAN BY 1976 WIC LES MCDONALD LONE OAK TEXAS 75453 214/662-5326 quencies saturation point reached 1976 last SOAR Nats 206 pre-registrations logged 27 MHz still used about 20% fliers 27 MHz impractical RC Sailplane use has requested contestants prepared avail themselves frequencies order allow qualified fliers par ticipate especially directed fliers Last Chance contest SOAR has given reins host Tournament club has assured Leagues front office contest will conducted same degree attention dedication past SOAR Nats Incidentally site Lewis University same site facilities old SOAR Nats now Romeoville Illinois address So its now Lewis/Romeoville instead Lewis/Lockport Same site new address Great Race IV has also nounced SOAR its scheduled Saturday July 21the day before th LSF activities major change course has still will over 76 kilometers countryside set up 1976 big change will no relaunching course However team will allowed launch times sees fit launch site travel far can 76 km course Longest distance wins case tie best time wins means specialized chase vehicles launching equipment will required individual teams what its worth course area has provided lift has produced doz ens two-hour flights three-hour flights four-hour 32 minute flight Cross-country flights have flown up 32 miles planning committee event regards chances slim make complete circuit single launch Yet course has flown well under three hours So conditions ripe knows course basically rectangular shape truest sense goal-and-return course once get half way around it isand besides its same conditions So tune up favorite ship ships prepare Great Race IV Itll heckuva lot less work past com peting teams launching equip ment timers will provided SOAR further information con tact Neil Liptak CD 325 ONeil St Joliet IL 60436 AMA Nationals year Lincoln Nebraska site has labeled ex cellent keep wagon packed circle calendar geo graphy says could attract largest Soaring body ever attend Well thats quite contest calendar Attend could qualify gypsy year Dan Pruss Rt 2 Box 490 Plain field IL 60544 RC Helicopters/Chesney continued page 29 side frames skid struts re inforcement profiles skids tail boom may polished using Mag Brite prepared painting using Scotch Brite Mag Brite Scotch Brite may picked up auto accessory store machine black anodized rather painted am told anodized finish may cause radio prob lems due insulating properties mind Id recommend pol ishing metal rather painting anodizing assemble parts just come box little problem tight ening set screw swash-plate ball No 452 because upper bearing block cut too deep inner race bearing below outer edge block remove block side frames remove bearing sand top block slightly bring down correct level Check correct problem before starting Stage 3 sure tighten set screw swash plate ball securely otherwise shaft may slip downward Stage 5 found easier install drive shaft 351 tail tube 350 before attaching gear bearing assembly drive shaft Grease drive shaft lightly before sembly gear bearing assembly positioned between side frames tail tube drive shaft mated adjusted per instructions Stage 6 assembly tail rotor gear box no sweat make sure pack bearings assemble sealed side out use Lock Tite gear set screws Set gear back lash dollar bill fill trans mission case grease assemble per instructions Close lower holes gear case screws pro vided dont screw too far Before installing tail fin pre-as sembled bearing block T/R control assembly remove screw con trol arm install two washers between arm bearing block washers will provide additional clear ance arm avoid interference between control arm under side transmission box sure reposition control rod avoid bind ing well tail skid provided has proven little flimsy may made rigid bracing wire 102 Model Aviation COONEY cockpit coaming EXTRUDEO FLEXIBLE BLACK VINYL GLUABLE & PAINTABLE TWO SIZES 3/32 & 3/16 DIA FOURMOST RACING PRODUCTS ForestAvenue Or97116 SAVE $150 ON YOUR NEXT RADIO Buy DitaI Commander Flite Pack Kit Save Money out Compromising Quality Performance Three Servo Options Two Receiver Options Kit Prices Start $7495 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 [ACE mI Em] BOX SuE HIGGINSVILLE MO 64037 GET ORGANIZED ~ Hems set 4 stardy tdes hos oserP o 4 years Yoro teasote eragazinee 4 MAG FILES $495 rVgnm%oREPLATECH DON INDUSTRIESJINTERNATIONAL INC BI po Box 358-KPLANS DOVER NH 03a2o4e500 NIC KENZIE HWY VIOA OREGON 974CR screw left front transmission bottom skid Bend brace wire conform skid wrap solder joint modification appeared some time ago Don Chapmans Hover column RCM has saved several dollars sincethanks Don Dons mod used landing tail skid will cause original skid flex allow tail rotors touch ground will almost certainly chew up plastic drive gear main gear 148 time Dons mod over $1400 now costs $850 Still expensive item invest few cents wire solder help save Perhaps neatest thing about Heliboy engine starting system using starter extension available Miniature Aircraft Supply see Oct 78 MA system allows quick en gine starts partially flooded engine extension available separ ately $695 fits Sullivan Sono tronix Kavan starters part numbers SlOb 501010 KlOllrespec tively convenience direct start system well worth effort should given proper alignment starter shaft clutch assembly factory instructions did stress importance proper alignment fan starter shaft clutch assembly supplement sheet pro vided MAS did check align starter shaft run out simple jig such test stand shown photo vise wire can used Before installing clutch starter shaft fan fan must concentric engine shaft therefore fan hole starter shaft must enlarged should done lathe dial indicated rather simply reamed out quick check con centricity fan may made using test stand wire gauge laying gauge just touch outer edge fan bobbing fan reference point would show up engine turned over problem may cor rected local machine shop lathe dial indicator simply ro tating fan slightly engine shaft retightening nut Now fan concentric clutch starter shaft run-out largely function bolts holding clutch fan torqued Using jig again after attaching clutch fan lay wire gauge center start er shaft again rotate engine shaft shaft bobs off center refer ence point run-out excessive Loosen retighten bolts clutch evenly until notice able run out about center reference wire Once zero run-out accomplished coat starter shaft light coat grease install clutch housing bearing blocks per instructions Stage 7 Continued attention alignments necessary Stage 8 After aligning metal gear teeth clutch housing plastic gear described instructions tighten bearing blocks tighten engine mount screws through fuselage Allow engine float turn starter shaft back forth check engine mounts aligned properly tighten engine mount screws taking care twist engine either side front rear Check assure no binding occurs between clutch housing clutch M/R shaft turned impor tant steps smooth operation helicopter take time Now install spacer spinner starter shaft tighten set screw remove spinner covering bearing piece paper file flat set screw contacts shaft reinstall balance instructions cover ing fuel tank tail rotor main rotor head stabilizer bar mixing lever Beller mixers preliminary set up clear cabin structure described Stage 14 will almost certainly interfere canopy constructed using servo carriers provided carriers too wide may cut narrower new parts cut 1/8 ply shown photos supplement sheet suggested cutting side horizontal servo carriers note lined through though recommended havent problems cutting carriers just make sure enough room radio stallation Continuing cabin structure sure align upper lower servo supports servos stalled carriers pushrods may routed straight possible Watch out interference engine needle valve routing pushrods collective toggle tail rotor bellcrank static set up machine detailed very well however no instruction regarding necessity properly adjusting dynamic blade tracking see March Helicopters concerned about omission first start-up machine resulted perfect trackwhat luck adjustments must made other blade first Heliboy adjust ball links coming down collective lever pitch arm Beller mixer used adjustment upper links will require adjust ment lower ball link coming swash plate mixer adjust ment lower cyclic rod will op posite upper cyclic rod order keep mixing level horizon tal half stick position noted static set-up Stage 1 3 static adjustments including tail-rotor mix work out very close least has case both machines tail-rotor bellcrank may need positioned top toggle slot mm mix position done bellcrank must cut provide clearance main gear dynamic checks accomplished corrected within five minutes first engine start up will point out flown first Heliboy times before some told sounded though turning proper rpm tach confirmed main rotor speed below recommended 1550 1700 rpm relied sound 104 Model Aviation KELLY PROPS 9X7 8X8 8X8 8X7 7X6 6X 5 6X5 7X4 72hour 10days Any prop Nashville type Slow Rat Gillott Regular Regular 7 X 55 Willoughby Goodyear graphite FAI Combat shipping money orders personal checks stock money will KELLY PRODUCTS INC PO Box 38 Western Springs Il 60558 p650 $500 $4 75 $475 $375 375 500 $375 cashier s checks promptly refunded machine tendency overpitch due unusually high main rotor speed compared some earlier machines de creased pitch increased M/R speed improved stability first Heli boy maneuvers smoother Id recommend checking rpm tach will say did experience problems flying too much pitch second machine has tached 1600 rpm seems happy Since Heliboys have around quite awhile Im sure column has offered surprises over ali impressions machine favorable regarding flight perform ance machine little fragile ever Factory improvements forth coming will beef up obvious weaknesses such need strong er fuselage side plates rotorhead side plates main gear also being redesigned improve gear mesh tail rotor drive gear serve double duty event mishap new main gear Im told will allow user flip over event first set tail rotor drive teeth wiped out addition coming improve ments prices have reduced kit well common ly used spare parts machine parts available direct Miniature Aircraft Supply East Coast S C Modeler Central Gorham Associates West Coast local hobby shop Dont get order starter extension electric starter order first kit addition may wish order special muffler available muf fler fits easily within Bell 222 fuse lage Seamco adapter fit en gine will necessary Now flying Heliboys other RC helicopters about passing some secrets make easy rest us See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 RC Old Timer/Mathews continueg page 30 section similar peg fuselage interior Hoo boy drawings illustrate gusset tech nique thought brand new revolutionary read another mag long ago Perhaps Russells technique recently rediscovered gussets run between wing rib trailing edge cut strips 1/8 sq balsa rather sheet run 45 degree angle cement ends Vulcan lends itself nicely RC conversion since empemiage hinge points obvious cabin has adequate access radio equipment would size range Super Buccaneer Shereshaw Cumulus recom mended power 9 10 cc glow unit would strongly recommend laminated bass wcod tip outlines well music wire wing pins running appropriate sized brass tubing Although one-piece wing could used would wise measure shop door space car trunk method wing stab hold down illustrated photo would also much satisfactory designed Mr Russell Another appealing modifi cation would involve scaling Vulcan modest size say 70% 3 4 cc powerplant second Vulcan photo magnificent view Pat Mardells rare Kiwi motor quote Peter Chinn MAN Feb 1979 Designed Edgar T Westburty Kiwi bore stroke 1000 X 1123 giving displacement 088 3 new_releases Bucker TUNGMEISTER india control 020 rubbherb clukev power 38 span 12 channel RIC tree flight 51495 wingspan GSeagulJPror rubber available soon C02 power SEE YOURsend 25$ DEALER NOWcatalog FLYLINE MODELS INC 2O2000flRAAENAFIS 10 FAIRFAX VIRGINIA 22031703 573-203* 1448 cc vertical overhead valves operated through pushrods rear mounted camshaft driven spur gears Kiwi never commercially pro duced Westburty designed home construction notes drawings published ModelEngineer long editor Bob Wischer states Kiwi output low portion flight spent gaining altitude about 200 feet after five May1979 105 11/2 scale great schoolyard scale TRAVEL AIR by
Edition: Model Aviation - 1979/05
Page Numbers: 28, 29, 102, 104, 105
THE Heliboys have us al two years During time have proven flying qualities ac cumulating impressive list contest wins Novice Expert Heliboy capable both mild wild flying emphasis course has aerobatic qualities tried point out December column feel aerobatic machines should considered experienced pilots also us less experience responsiveness aerobatic machines does necessarily offset stability particularly true Heliboy Heliboy 60-powered collec tive-pitch trainer helicopter hap pens capable wild aerobatics right out box kit contains parts necessary fly machine either Huller rigid rotor system Belier system used aero batic machine suppose Hiller sys tem intended beginner after flying aerobatic version Im convinced beginner could have equal success using Beller mixers start very little difference stability two systems addition accessory balancing weights attached flybar responsive aerobatic system can tamed set weights Part No 755 may attached removed field conditions experience improve set improves windy weather sta bility two sets maximum due centrifugal forces can used beginner give maximum stability kit called Bell 222 actually framework scale Bell 222 fuse lage available beautiful addition photo shows potential Heliboy Bell 222 clined Heliboy Bell 222 trainer kit complete less radio engine muffler finishing materials fers machine may completed very short order Results starter shaft misalignment Note Modification servo carriersshowing reduced notches worn shaft bearings due side width necessary clear canopy Also shown loads approximate center shaft lower variation radio installation below notch above clutch Shaft pressed lower carrier although neater restricts clutch turned 180 degrees before photo access glow plug special long taken assembly helicopter wrench orovided kitW R Hartneas Sanford NC Although basic framework sim ilar complexity advanced erec tor set rules still applyread structions instructions supplied construction machine ex cellent bit scattered kit cluded 16-page booklet German structions photos illustrations 12 pages English instructions two pages factory supplemental informa tion four additional pages sup plements provided supplier additional information supplied Min iature Aircraft Supply four pages invaluable particularly regard ing attention engine clutch alignments will detail construction Heliboy instructions photographs supplements very clear Before go might add cause instructions written stages parts packaged according ly possible build certain sub-as semblies out sequence found ad vantageous build several components during lunch hours brought home add machine readLeft side Heliboy showing special muffler available pushrod routing engine fore aft cyclic bellcrank ing instructions sequencing con struction correspond available at-home time already short con struction time may further reduced instance during lunch hours built collective toggle Stage 4 tail rotor gear box Stage 6 tail rotor sembly Stage 10 main rotor head Stage 11 allowed at-home time major construction tasks like waiting glue paint dry machine may easily completed week evenings first six stages construction can go very quickly few hints may help First before beginning stage little time spent preparing metal parts described supple ment sheets will improve appearance machine side plates should sanded along edges around cut-outs remove sharp edges Continued page 102 May1979 29 Simple alignment jig set up check starter shaft runout See text important construc tion step dial-indicator would helpful adequate results areachieved jig shown similar set-up using vise rather test stand Right side showing pushrods right left cyclic bellcrank collec tive toggle tail rotor bellcrank Note tail rotor servo dropped slightly T/R pushrod would exit below right collective pushrod Bends pushrods should minimal reduce possibility flexing particularly cyclic collective controls Bell 222 fuselage turns Heliboy besutiful scale model Richard Smith LaHabra CA won 2nd place MACS last year Landing gear apparent AMA Nationals DiCK MATH1S DESiGN GROUP TAKES CIL STUNT VERY SERIOUSLY. $5500 GENESiS 40 56 SPAN BY 1978 0/C BOB HUNT DESiGN GROUP BOX 338 / STiLETTO 6 SPAN BY 1976 WIC LES MCDONALD LONE OAK TEXAS 75453 214/662-5326 quencies saturation point reached 1976 last SOAR Nats 206 pre-registrations logged 27 MHz still used about 20% fliers 27 MHz impractical RC Sailplane use has requested contestants prepared avail themselves frequencies order allow qualified fliers par ticipate especially directed fliers Last Chance contest SOAR has given reins host Tournament club has assured Leagues front office contest will conducted same degree attention dedication past SOAR Nats Incidentally site Lewis University same site facilities old SOAR Nats now Romeoville Illinois address So its now Lewis/Romeoville instead Lewis/Lockport Same site new address Great Race IV has also nounced SOAR its scheduled Saturday July 21the day before th LSF activities major change course has still will over 76 kilometers countryside set up 1976 big change will no relaunching course However team will allowed launch times sees fit launch site travel far can 76 km course Longest distance wins case tie best time wins means specialized chase vehicles launching equipment will required individual teams what its worth course area has provided lift has produced doz ens two-hour flights three-hour flights four-hour 32 minute flight Cross-country flights have flown up 32 miles planning committee event regards chances slim make complete circuit single launch Yet course has flown well under three hours So conditions ripe knows course basically rectangular shape truest sense goal-and-return course once get half way around it isand besides its same conditions So tune up favorite ship ships prepare Great Race IV Itll heckuva lot less work past com peting teams launching equip ment timers will provided SOAR further information con tact Neil Liptak CD 325 ONeil St Joliet IL 60436 AMA Nationals year Lincoln Nebraska site has labeled ex cellent keep wagon packed circle calendar geo graphy says could attract largest Soaring body ever attend Well thats quite contest calendar Attend could qualify gypsy year Dan Pruss Rt 2 Box 490 Plain field IL 60544 RC Helicopters/Chesney continued page 29 side frames skid struts re inforcement profiles skids tail boom may polished using Mag Brite prepared painting using Scotch Brite Mag Brite Scotch Brite may picked up auto accessory store machine black anodized rather painted am told anodized finish may cause radio prob lems due insulating properties mind Id recommend pol ishing metal rather painting anodizing assemble parts just come box little problem tight ening set screw swash-plate ball No 452 because upper bearing block cut too deep inner race bearing below outer edge block remove block side frames remove bearing sand top block slightly bring down correct level Check correct problem before starting Stage 3 sure tighten set screw swash plate ball securely otherwise shaft may slip downward Stage 5 found easier install drive shaft 351 tail tube 350 before attaching gear bearing assembly drive shaft Grease drive shaft lightly before sembly gear bearing assembly positioned between side frames tail tube drive shaft mated adjusted per instructions Stage 6 assembly tail rotor gear box no sweat make sure pack bearings assemble sealed side out use Lock Tite gear set screws Set gear back lash dollar bill fill trans mission case grease assemble per instructions Close lower holes gear case screws pro vided dont screw too far Before installing tail fin pre-as sembled bearing block T/R control assembly remove screw con trol arm install two washers between arm bearing block washers will provide additional clear ance arm avoid interference between control arm under side transmission box sure reposition control rod avoid bind ing well tail skid provided has proven little flimsy may made rigid bracing wire 102 Model Aviation COONEY cockpit coaming EXTRUDEO FLEXIBLE BLACK VINYL GLUABLE & PAINTABLE TWO SIZES 3/32 & 3/16 DIA FOURMOST RACING PRODUCTS ForestAvenue Or97116 SAVE $150 ON YOUR NEXT RADIO Buy DitaI Commander Flite Pack Kit Save Money out Compromising Quality Performance Three Servo Options Two Receiver Options Kit Prices Start $7495 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 [ACE mI Em] BOX SuE HIGGINSVILLE MO 64037 GET ORGANIZED ~ Hems set 4 stardy tdes hos oserP o 4 years Yoro teasote eragazinee 4 MAG FILES $495 rVgnm%oREPLATECH DON INDUSTRIESJINTERNATIONAL INC BI po Box 358-KPLANS DOVER NH 03a2o4e500 NIC KENZIE HWY VIOA OREGON 974CR screw left front transmission bottom skid Bend brace wire conform skid wrap solder joint modification appeared some time ago Don Chapmans Hover column RCM has saved several dollars sincethanks Don Dons mod used landing tail skid will cause original skid flex allow tail rotors touch ground will almost certainly chew up plastic drive gear main gear 148 time Dons mod over $1400 now costs $850 Still expensive item invest few cents wire solder help save Perhaps neatest thing about Heliboy engine starting system using starter extension available Miniature Aircraft Supply see Oct 78 MA system allows quick en gine starts partially flooded engine extension available separ ately $695 fits Sullivan Sono tronix Kavan starters part numbers SlOb 501010 KlOllrespec tively convenience direct start system well worth effort should given proper alignment starter shaft clutch assembly factory instructions did stress importance proper alignment fan starter shaft clutch assembly supplement sheet pro vided MAS did check align starter shaft run out simple jig such test stand shown photo vise wire can used Before installing clutch starter shaft fan fan must concentric engine shaft therefore fan hole starter shaft must enlarged should done lathe dial indicated rather simply reamed out quick check con centricity fan may made using test stand wire gauge laying gauge just touch outer edge fan bobbing fan reference point would show up engine turned over problem may cor rected local machine shop lathe dial indicator simply ro tating fan slightly engine shaft retightening nut Now fan concentric clutch starter shaft run-out largely function bolts holding clutch fan torqued Using jig again after attaching clutch fan lay wire gauge center start er shaft again rotate engine shaft shaft bobs off center refer ence point run-out excessive Loosen retighten bolts clutch evenly until notice able run out about center reference wire Once zero run-out accomplished coat starter shaft light coat grease install clutch housing bearing blocks per instructions Stage 7 Continued attention alignments necessary Stage 8 After aligning metal gear teeth clutch housing plastic gear described instructions tighten bearing blocks tighten engine mount screws through fuselage Allow engine float turn starter shaft back forth check engine mounts aligned properly tighten engine mount screws taking care twist engine either side front rear Check assure no binding occurs between clutch housing clutch M/R shaft turned impor tant steps smooth operation helicopter take time Now install spacer spinner starter shaft tighten set screw remove spinner covering bearing piece paper file flat set screw contacts shaft reinstall balance instructions cover ing fuel tank tail rotor main rotor head stabilizer bar mixing lever Beller mixers preliminary set up clear cabin structure described Stage 14 will almost certainly interfere canopy constructed using servo carriers provided carriers too wide may cut narrower new parts cut 1/8 ply shown photos supplement sheet suggested cutting side horizontal servo carriers note lined through though recommended havent problems cutting carriers just make sure enough room radio stallation Continuing cabin structure sure align upper lower servo supports servos stalled carriers pushrods may routed straight possible Watch out interference engine needle valve routing pushrods collective toggle tail rotor bellcrank static set up machine detailed very well however no instruction regarding necessity properly adjusting dynamic blade tracking see March Helicopters concerned about omission first start-up machine resulted perfect trackwhat luck adjustments must made other blade first Heliboy adjust ball links coming down collective lever pitch arm Beller mixer used adjustment upper links will require adjust ment lower ball link coming swash plate mixer adjust ment lower cyclic rod will op posite upper cyclic rod order keep mixing level horizon tal half stick position noted static set-up Stage 1 3 static adjustments including tail-rotor mix work out very close least has case both machines tail-rotor bellcrank may need positioned top toggle slot mm mix position done bellcrank must cut provide clearance main gear dynamic checks accomplished corrected within five minutes first engine start up will point out flown first Heliboy times before some told sounded though turning proper rpm tach confirmed main rotor speed below recommended 1550 1700 rpm relied sound 104 Model Aviation KELLY PROPS 9X7 8X8 8X8 8X7 7X6 6X 5 6X5 7X4 72hour 10days Any prop Nashville type Slow Rat Gillott Regular Regular 7 X 55 Willoughby Goodyear graphite FAI Combat shipping money orders personal checks stock money will KELLY PRODUCTS INC PO Box 38 Western Springs Il 60558 p650 $500 $4 75 $475 $375 375 500 $375 cashier s checks promptly refunded machine tendency overpitch due unusually high main rotor speed compared some earlier machines de creased pitch increased M/R speed improved stability first Heli boy maneuvers smoother Id recommend checking rpm tach will say did experience problems flying too much pitch second machine has tached 1600 rpm seems happy Since Heliboys have around quite awhile Im sure column has offered surprises over ali impressions machine favorable regarding flight perform ance machine little fragile ever Factory improvements forth coming will beef up obvious weaknesses such need strong er fuselage side plates rotorhead side plates main gear also being redesigned improve gear mesh tail rotor drive gear serve double duty event mishap new main gear Im told will allow user flip over event first set tail rotor drive teeth wiped out addition coming improve ments prices have reduced kit well common ly used spare parts machine parts available direct Miniature Aircraft Supply East Coast S C Modeler Central Gorham Associates West Coast local hobby shop Dont get order starter extension electric starter order first kit addition may wish order special muffler available muf fler fits easily within Bell 222 fuse lage Seamco adapter fit en gine will necessary Now flying Heliboys other RC helicopters about passing some secrets make easy rest us See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 RC Old Timer/Mathews continueg page 30 section similar peg fuselage interior Hoo boy drawings illustrate gusset tech nique thought brand new revolutionary read another mag long ago Perhaps Russells technique recently rediscovered gussets run between wing rib trailing edge cut strips 1/8 sq balsa rather sheet run 45 degree angle cement ends Vulcan lends itself nicely RC conversion since empemiage hinge points obvious cabin has adequate access radio equipment would size range Super Buccaneer Shereshaw Cumulus recom mended power 9 10 cc glow unit would strongly recommend laminated bass wcod tip outlines well music wire wing pins running appropriate sized brass tubing Although one-piece wing could used would wise measure shop door space car trunk method wing stab hold down illustrated photo would also much satisfactory designed Mr Russell Another appealing modifi cation would involve scaling Vulcan modest size say 70% 3 4 cc powerplant second Vulcan photo magnificent view Pat Mardells rare Kiwi motor quote Peter Chinn MAN Feb 1979 Designed Edgar T Westburty Kiwi bore stroke 1000 X 1123 giving displacement 088 3 new_releases Bucker TUNGMEISTER india control 020 rubbherb clukev power 38 span 12 channel RIC tree flight 51495 wingspan GSeagulJPror rubber available soon C02 power SEE YOURsend 25$ DEALER NOWcatalog FLYLINE MODELS INC 2O2000flRAAENAFIS 10 FAIRFAX VIRGINIA 22031703 573-203* 1448 cc vertical overhead valves operated through pushrods rear mounted camshaft driven spur gears Kiwi never commercially pro duced Westburty designed home construction notes drawings published ModelEngineer long editor Bob Wischer states Kiwi output low portion flight spent gaining altitude about 200 feet after five May1979 105 11/2 scale great schoolyard scale TRAVEL AIR by