RADIO CONTROL HELICOPTERS THE interesting helicopter ONEOF cts Im working includes being member Massachusetts Institute Technology MIT Unmanned Aerovehicle Team MIT approached couple years ago interested developing guidance system vehicle will hover go forward flight perform aerobatic maneuvers model helicopter certainly seemed fit requirements readily available inexpensive compared other larger vehicles ready supply spare parts Although work has 60-size helicopters article details experiments improve electric helicopter flight meet MITs requirements initiate feasibility study talked Ron Osinski member Pittsburgh Area Roto Runners Ron have PARR club members several years regarded expert Concept helicoptersfrom Concept 60 Concept 30 Concept EP Concept EP designed electric helicopter getting hover fly forward flight easy maximize performance aerobatics would challenge experiments writing article direct result Rons untiring efforts involving hours research numerous experiments began stock EP comes about 75% assembled right out box modified reduce weight improve engine power first step call Tim Lampe Great Planes Model Distributing Great Planes Model Distributing P 0 Box 4021 Champaign IL 61820 since Tim factory expert several lightweight parts EP Im going list Im sure Tim will glad help anyone interested next step modify EP maximum performance changes actually evolved during ground flight tests presented logical sequence stock EP has about 90 collective pitch travel wanted increase improved aerobatics Ron noticed arm connected pitch slider restricted top end connecting ball hitting side frame fuselage No matter much throw available servo mechanical restriction always restricted pitch throw first cure mount ball outside bellcrank restricted aileron servo mount So out came old Dremel small clearing ground away servo mount increasing pitch range about 180 enough both normal inverted flying Remember said max performance standard electric motor supplied EP Kyosho AP 36 18/2 wind factory-set 60 advanced timing Although good motor general flying Ron tried several changes modifications improve its performance However soon became apparent powerful motor would needed flight performance mind again meant modifying EP motor mount therefore gear mesh nonadjustable gears sealed keep clean Ron first elongated holes motor mounting plate motor could moved adjust gear mesh several trial pinion gears determine gave best performance bottom EP also ground away could see gears adjust mesh slightly reduced EP s weight Several motors gear ratios tried Fantom Motor Fantom Motors 209 North Haver St Hartford MI 49057 standard 16-tooth pinion giving best performance Ron called Fantom factory ask other recommendations company nice enough customwind 15-turn quad 24 motor also adjusted dyno-timed motor max performance perform did Hover rpm skytached 1850 rpm could maintained just over three minutes Now EP motor taken care next step round out package radio batteries charger used Futaba Futaba Corporation America Box 19767 Irvine CA 927 13-9767 Super Seven heli radio miniature S-133 servos G155 gyro Continued page 178 July1993 99 EP Concept modified electric power ready initial flight tests Futaba Super Seven hell radio SR Batteries flight packs Fantom motor Micro Futaba servos gyro make EP floor cut away expose motor receiver motor appear large mounting plate gears other comparison Note overall high quality motors gear ratios could tried Receiver atop Jomar speed controller tiny CGS Bug receiver supplies radio power airborne battery SCAEOFPLANS* IGP OP OP T8ABBRRVIATEO NAO8R 1124S1 I6BZ 1/8 SZ1/6 sz 1/4 SE 3/59ev Corner Sore2292032403266944132598 40Voog6t Core 14U205203052660545 13Coo JS4D Jenny21918325246553886 552 27LlodbeOge 512111551434 5246053491548 29Hero TeperHing1551422 02045$3460048i0562 36WeelInd Lycander2591837 5247553CO 2 35Doo 046A 05cr235243453268546 29Boo og 100 SporE15516224524455361605 R 9 33SEIn ToIoOEOr30930450389056212057 39LokLihEo18451528 2056534I 2556 25Vgr Core 0201/418 2027 28 o5 38Con Cello PETS52 4878 60104 19Coollee NC462406694589 17FolSer 07 Ftr1491221516 530-o4549 31Boyle GeeBee11451217451455324 544 70 56 13Sopereorlre S6B13 510224513444 2660 38 89 52 360000 Golfbeok14401421491843436SCALE PLAN 33Look Elerrre #11275254153255 38Look Eler 94 43Groin Avenger ml3052840 03880 2lord 3M 4AT6 42floe BS7G FlyForE5194077 955floe B170 38BA Hitokell 82536453755952NA 92 34HerolCeetolHC7215401523 0220o45351 H 8-26 6 37Cor Bevy 503C11951828452457536SIlo Tn 4 25CRerer 53C1 &211 515164920 odlyPe e 6 34Doog Trenep DC34754071950oo 0 CorI Henk 16115491523492247 4 4 32DoollOtlee OBILI1249171845223753549 46 74 58 31BoO 148-3M P12B15916224520444532594 44 89 58 32Sprfld BollDog134916209204093253A 80958 32Honsrd Ekellilke10495215491531926- 62945 34Toroer 6858 Barer13912194516399283 540 78952 35How Hr Blolllgeo16 9152349204793264944 94956 33Boc 126A Los 88014 91521 9204293263 45 84958 35Stlneon TW S314525 42088 HoeqolBo Boek3749244193581550908965 37Steereeo P11716 91824492249938~9 9 43N Bik WIdow 16133 940e9405099575 SI 30TABS Hwke Ten13144913114918439368609 42CHelldlvr SB2C42552587493574060I5 26lord Toleoto 4AT38 9387 04814 31Belleor AIr Boe32 922eB 930969S2 33Groen 321 look19492889040158955179068K 27CSeehewk 1711154518l34524I47538631950L9 65 28SIk AOphlk 13836534 16HPg 0400 90065094575951 31LIy e LSlrEoe2151631452218 936 31Howerd RerPete10512L3015130930 05 2 31C Sperkok 19021249II 33Aeroor C3 Opt189 38lorOene Peeco Si1249 03WrIght 116cr6 IlIAD BEFORE 01010190* 8110099784 ORDER915 ooAT ONE BE 5081 TO 450 TIlE 050 " 400LLANUNOERI/B4BIZRN AL 10% FOR PACKAGING POSTAGE AND INSOSANCE ABOUT THOUSAND ADOOTIONAL PLANS KANT siyos e SOr-975 CATALOG $200 OR PRICE LIST ALONE 01 77771Y7Tl77737777TL AIR 1050108 53KLLhLULLXL1ILALaLLL3JSU 178 Model Aviation 4When have plate cut shape drill 1A6-inch holes mounting screw loca tions have current model Radio Shack meter suggest confirm mounting hole locations before drillingjust make sure theres nothing right inside meter case get damaged As will see plate holes first used reference centers will enlarged later Next disassemble metereasily done removing battery cover cells well single case screw Carefully separate case halves printed circuit board assembly encourage handle circuit board assembly edges keep fingers off circuitry surfaces Use temporary wood rails -inch- 3/s-inch-square balsa okay rest edges inverted case bottom press plate against case end pictured Take care center up accurately sure plate right side up sure flush bottom edge casethis reason rails first place use double stick tape back plate prevent slipping during next operation drilling case holes Using A6 bit two plate pilot holes drill guides drill case end about Remove plate enlarge two holes case 353 inch Trial reattach plate using #2 x -inch sheet metal screws latter easily screw bite I5 case holesthreading way Remove plate reassemble meter Form wire stand carefully shown studying newer meter estimate stand will have made about 3/32-inch wider about Vs-inch shorter because newer case slightly wider vicinity alphanumeric display original stand length would allow hit raised selector switch folded sure confirm suggestions own satisfaction may take attempt get stand wire formed just right Anyway used 055 steel wire hobby shop good enough since landing gear per se Smooth burrs cut wire ends make stand operation smooth Assemble wire short ends resting case groove bearing attach plate hold wire place Test fold open stand Initially will probably very snug fitespecially newer case design appears have smaller groove formed case top bottom interface have found case groove can easily opened up first running A6 bit plate tightly place removes very little case plastic does make much better round bearing surface wire ends Also may have some touch-up bending latter get em just right Reinstall wire stand plate Operation stand quite simple stand wire deployed open position just squeeze wire verticals near case press wire against latter engage rear stop plate put away just fold stand back meter top surface Routine use wire stand should very easy convenient youre like youll soon wonder ing ever got along accessory makes meters much pleasant easy use So ends yet column Please sure enclose SASE corre spondence youd like reply Happy Quiet Electric Landings Everyone elicopteriTradelius Continued page 99 Batteries used SR SR Batteries Box 287 Bellport NY 11713 1100-mAh eight-cell pack Sermos connectors together SRs new Smart Charger Cycler handle peak charging speed controller Jomar SM-4 provided almost linear response idle off full power Also CGS Electronics CGS Electronics 7171 Steubenville Pike Oakdale PA 15071 Bug used power receiver large SR batteries thereby eliminating need separate receiver power supply collective pitch range set tarted initial flight tests I ULTIMATESPORT RC 255 EonS Anhlood/P 0 Boo 727/Sodo Sp,ng, Idoho 83274 8LTNOI8 80 RIPE1 200-547-3742P0 Fohe Io Se,d SASE LA 0 PLANE VIDEO GIVES YOU LIBRARY OF VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS NEW!NEW TECHNIQUES WITH FIBERGLASS 2-HOUR VIDEO ON ALL ASPECTS OF CONSTRUCTING FIBERGLASS FUSELAGES GLASSING IN FORMERS INSTALLING HATCHES ALIGNING THE TAIL AND WING FILLING PIN HOLES PRIMING AND PAINTING 1995 * $300 Bhlpplng $600 foreign orders AEROBATICS AND GROUND HL 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKEOFFS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE! $1995 shipping t$600 foreign orders BUILDING IT RIGHT THE FIRST TIME 2-2 HOUR VIDEOS SHOWING ALL DETAILS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUIING WING CONSTRUCTION RADIO INSTALLATION PUSHRODS ALIGNMENT BALANCING AND MUCH MORE $3495 shipping $600 foreign orders TAPES AVAILABLE IN Lfl ONLY SEND CHECK OR MO TO PLANE VIDEO PO BOX 23128 CLI yE IA 50325 OR CALL 1-800-383-8251 24 HR TOLL FREES OR 515-223-0879 2IOWA RESIDENTS PLEASE ADD 8% BALES TAX Ieveland Model SUpply UD rr.re 100005 PochedOIeIIos 801 Frieod'SInce 8019 18"NP0""I pococ 0178087 AVENUE II85BO8IS 44SBSII9A98E98~ 01514 FlyjOg Weigh 010, F, 0 C,I room rlyngOroce Alom Londing Geor door Conopy A,oiloble Bojidor 11 $255 Shrored hr $365" SnI,nr Shoered Kil S095 Although EP usually smooth-flying helicopter ran vibration blade tracking problem high head speed 1800 rpm traced blade grips blade grips attached head single screw very tight loosened trifle blade grip could rotate slightly lead/lag cured problem modifications Concept EP has able provide solid two minutes max performing flight including loops rolls flying inverted make sure flight time exceeded set timer go off after two minutes got ground right away because wasnt much hattery reserve Also after talking others race cars familiar care feeding high charge discharge batteries found best completely discharge batteries before charging together SR Smart Charger gave us power could put SR packs Although electric helicopters arent everyone challenge can give very acceptable aerobatic performance next step meet MITs goal judge small piece sky can use loop rollwith objective eventually performing maneuvers indoors experiments big mainframe computer will have brought outdoors helicopter virtually impos sible helicopter will have go indoors computer will mean getting maneuverability can EP possibly developing some new different flying techniques Naturally have ideas welcome Ill keep posted progress ld-Timers/Baker Continued page 111 Price $6 fine-looking plans should good CO2 well rubber mini-electric Also available $150 1947 MAN plan twin-boom pusher tiny CO2 motors Howard McEntee 12-inchspan Fleet Trainer Megow also GLIDERS really know what youre doing MODEL SAILPLANES MYTH MAGIC Tony Upso no Math either Laymen Wives Lovers 170 readable pages $1895 plus $300 S&H Beefsteak Mines Ltd Box 1645 Jackson Wy 83001 FAX 307 733 7153 write fax brochure $150 sure enclose postageI am sure will refund extraor send SASE get complete list postage data WW plans look like would enlarge nicely drawn 3/4-inch-tothe-foot scale run about 20 22 inches span show K&B 020 power show priotwood patterns months photos shows balsa aluminum paper dummy GHQ engine produced Jim Duckworth Weight 36 grams engine could attached electric Old-Timer model wish photo colorthe details finish great Price $25 Jim Duckworth 123 Forest Lake Dr Warner Robins GA 31093 Thats room get Keep cards letters coming Next column will cover some frequently asked questions ndoor/Tenny Continued page 113 MarylandGoddard NAS Goddard NAS record trials flying sessions scheduled auditorium Building 8 Goddard NAS Saturdays 11 am till 1030 pm June 26 July 17 Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 1992 Sanctioned national FAI record trials Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 NASA security requires attendees US citizens AMA members licenses available inspection gate list compiled Tom Vallee must notify Tom intention attend advance meet Changes NASA launch schedules other possible events can preempt use auditorium much warning sure verify date Tom before leave home Tom Vallee 444 Henryton South Laurel MD 20707 Tel 301 498-0790 New JerseyLakehurst New dates Lakehurst #1 under negotiation press time Contact Gary Underwood address shown below find dates decided upon general dates expected almost weekly #1 Use Electric Connector Ar44t A'mAnS Rates tO Amps 600 V DC Ererincal Renstance 250 M crohnn Modular Cooranees naP op 1 Sermos Super Connector Lifetime Guarantee $500 per packet 2 Sermos Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 Sermos insertion & Extraction Toot $800 per tool Mimiman Order $1 500 PLUS $200 Shipping Handeling Oniy Certified Checks Mosey Orders accepted payment orders Distributors Dealers Inquiries Invited Please call 203 322-8294 farther information Sm9S R/G SNAP CONNECTORS INC Cedar Corners StatIcs Box 16787 Stamford CT 06905 FOR THREADED CYLS AND COVERS FOR SPITFIRE CYKE BROWN AND BUNCH OTHERS BY REQUEST FOR FULL INFO WRITE BOB MCCORD 325-93 SYLVAN AVE MTN VIEW CALIF 94041-1640 July1993 179
Edition: Model Aviation - 1993/07
Page Numbers: 99, 178, 179
RADIO CONTROL HELICOPTERS THE interesting helicopter ONEOF cts Im working includes being member Massachusetts Institute Technology MIT Unmanned Aerovehicle Team MIT approached couple years ago interested developing guidance system vehicle will hover go forward flight perform aerobatic maneuvers model helicopter certainly seemed fit requirements readily available inexpensive compared other larger vehicles ready supply spare parts Although work has 60-size helicopters article details experiments improve electric helicopter flight meet MITs requirements initiate feasibility study talked Ron Osinski member Pittsburgh Area Roto Runners Ron have PARR club members several years regarded expert Concept helicoptersfrom Concept 60 Concept 30 Concept EP Concept EP designed electric helicopter getting hover fly forward flight easy maximize performance aerobatics would challenge experiments writing article direct result Rons untiring efforts involving hours research numerous experiments began stock EP comes about 75% assembled right out box modified reduce weight improve engine power first step call Tim Lampe Great Planes Model Distributing Great Planes Model Distributing P 0 Box 4021 Champaign IL 61820 since Tim factory expert several lightweight parts EP Im going list Im sure Tim will glad help anyone interested next step modify EP maximum performance changes actually evolved during ground flight tests presented logical sequence stock EP has about 90 collective pitch travel wanted increase improved aerobatics Ron noticed arm connected pitch slider restricted top end connecting ball hitting side frame fuselage No matter much throw available servo mechanical restriction always restricted pitch throw first cure mount ball outside bellcrank restricted aileron servo mount So out came old Dremel small clearing ground away servo mount increasing pitch range about 180 enough both normal inverted flying Remember said max performance standard electric motor supplied EP Kyosho AP 36 18/2 wind factory-set 60 advanced timing Although good motor general flying Ron tried several changes modifications improve its performance However soon became apparent powerful motor would needed flight performance mind again meant modifying EP motor mount therefore gear mesh nonadjustable gears sealed keep clean Ron first elongated holes motor mounting plate motor could moved adjust gear mesh several trial pinion gears determine gave best performance bottom EP also ground away could see gears adjust mesh slightly reduced EP s weight Several motors gear ratios tried Fantom Motor Fantom Motors 209 North Haver St Hartford MI 49057 standard 16-tooth pinion giving best performance Ron called Fantom factory ask other recommendations company nice enough customwind 15-turn quad 24 motor also adjusted dyno-timed motor max performance perform did Hover rpm skytached 1850 rpm could maintained just over three minutes Now EP motor taken care next step round out package radio batteries charger used Futaba Futaba Corporation America Box 19767 Irvine CA 927 13-9767 Super Seven heli radio miniature S-133 servos G155 gyro Continued page 178 July1993 99 EP Concept modified electric power ready initial flight tests Futaba Super Seven hell radio SR Batteries flight packs Fantom motor Micro Futaba servos gyro make EP floor cut away expose motor receiver motor appear large mounting plate gears other comparison Note overall high quality motors gear ratios could tried Receiver atop Jomar speed controller tiny CGS Bug receiver supplies radio power airborne battery SCAEOFPLANS* IGP OP OP T8ABBRRVIATEO NAO8R 1124S1 I6BZ 1/8 SZ1/6 sz 1/4 SE 3/59ev Corner Sore2292032403266944132598 40Voog6t Core 14U205203052660545 13Coo JS4D Jenny21918325246553886 552 27LlodbeOge 512111551434 5246053491548 29Hero TeperHing1551422 02045$3460048i0562 36WeelInd Lycander2591837 5247553CO 2 35Doo 046A 05cr235243453268546 29Boo og 100 SporE15516224524455361605 R 9 33SEIn ToIoOEOr30930450389056212057 39LokLihEo18451528 2056534I 2556 25Vgr Core 0201/418 2027 28 o5 38Con Cello PETS52 4878 60104 19Coollee NC462406694589 17FolSer 07 Ftr1491221516 530-o4549 31Boyle GeeBee11451217451455324 544 70 56 13Sopereorlre S6B13 510224513444 2660 38 89 52 360000 Golfbeok14401421491843436SCALE PLAN 33Look Elerrre #11275254153255 38Look Eler 94 43Groin Avenger ml3052840 03880 2lord 3M 4AT6 42floe BS7G FlyForE5194077 955floe B170 38BA Hitokell 82536453755952NA 92 34HerolCeetolHC7215401523 0220o45351 H 8-26 6 37Cor Bevy 503C11951828452457536SIlo Tn 4 25CRerer 53C1 &211 515164920 odlyPe e 6 34Doog Trenep DC34754071950oo 0 CorI Henk 16115491523492247 4 4 32DoollOtlee OBILI1249171845223753549 46 74 58 31BoO 148-3M P12B15916224520444532594 44 89 58 32Sprfld BollDog134916209204093253A 80958 32Honsrd Ekellilke10495215491531926- 62945 34Toroer 6858 Barer13912194516399283 540 78952 35How Hr Blolllgeo16 9152349204793264944 94956 33Boc 126A Los 88014 91521 9204293263 45 84958 35Stlneon TW S314525 42088 HoeqolBo Boek3749244193581550908965 37Steereeo P11716 91824492249938~9 9 43N Bik WIdow 16133 940e9405099575 SI 30TABS Hwke Ten13144913114918439368609 42CHelldlvr SB2C42552587493574060I5 26lord Toleoto 4AT38 9387 04814 31Belleor AIr Boe32 922eB 930969S2 33Groen 321 look19492889040158955179068K 27CSeehewk 1711154518l34524I47538631950L9 65 28SIk AOphlk 13836534 16HPg 0400 90065094575951 31LIy e LSlrEoe2151631452218 936 31Howerd RerPete10512L3015130930 05 2 31C Sperkok 19021249II 33Aeroor C3 Opt189 38lorOene Peeco Si1249 03WrIght 116cr6 IlIAD BEFORE 01010190* 8110099784 ORDER915 ooAT ONE BE 5081 TO 450 TIlE 050 " 400LLANUNOERI/B4BIZRN AL 10% FOR PACKAGING POSTAGE AND INSOSANCE ABOUT THOUSAND ADOOTIONAL PLANS KANT siyos e SOr-975 CATALOG $200 OR PRICE LIST ALONE 01 77771Y7Tl77737777TL AIR 1050108 53KLLhLULLXL1ILALaLLL3JSU 178 Model Aviation 4When have plate cut shape drill 1A6-inch holes mounting screw loca tions have current model Radio Shack meter suggest confirm mounting hole locations before drillingjust make sure theres nothing right inside meter case get damaged As will see plate holes first used reference centers will enlarged later Next disassemble metereasily done removing battery cover cells well single case screw Carefully separate case halves printed circuit board assembly encourage handle circuit board assembly edges keep fingers off circuitry surfaces Use temporary wood rails -inch- 3/s-inch-square balsa okay rest edges inverted case bottom press plate against case end pictured Take care center up accurately sure plate right side up sure flush bottom edge casethis reason rails first place use double stick tape back plate prevent slipping during next operation drilling case holes Using A6 bit two plate pilot holes drill guides drill case end about Remove plate enlarge two holes case 353 inch Trial reattach plate using #2 x -inch sheet metal screws latter easily screw bite I5 case holesthreading way Remove plate reassemble meter Form wire stand carefully shown studying newer meter estimate stand will have made about 3/32-inch wider about Vs-inch shorter because newer case slightly wider vicinity alphanumeric display original stand length would allow hit raised selector switch folded sure confirm suggestions own satisfaction may take attempt get stand wire formed just right Anyway used 055 steel wire hobby shop good enough since landing gear per se Smooth burrs cut wire ends make stand operation smooth Assemble wire short ends resting case groove bearing attach plate hold wire place Test fold open stand Initially will probably very snug fitespecially newer case design appears have smaller groove formed case top bottom interface have found case groove can easily opened up first running A6 bit plate tightly place removes very little case plastic does make much better round bearing surface wire ends Also may have some touch-up bending latter get em just right Reinstall wire stand plate Operation stand quite simple stand wire deployed open position just squeeze wire verticals near case press wire against latter engage rear stop plate put away just fold stand back meter top surface Routine use wire stand should very easy convenient youre like youll soon wonder ing ever got along accessory makes meters much pleasant easy use So ends yet column Please sure enclose SASE corre spondence youd like reply Happy Quiet Electric Landings Everyone elicopteriTradelius Continued page 99 Batteries used SR SR Batteries Box 287 Bellport NY 11713 1100-mAh eight-cell pack Sermos connectors together SRs new Smart Charger Cycler handle peak charging speed controller Jomar SM-4 provided almost linear response idle off full power Also CGS Electronics CGS Electronics 7171 Steubenville Pike Oakdale PA 15071 Bug used power receiver large SR batteries thereby eliminating need separate receiver power supply collective pitch range set tarted initial flight tests I ULTIMATESPORT RC 255 EonS Anhlood/P 0 Boo 727/Sodo Sp,ng, Idoho 83274 8LTNOI8 80 RIPE1 200-547-3742P0 Fohe Io Se,d SASE LA 0 PLANE VIDEO GIVES YOU LIBRARY OF VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS NEW!NEW TECHNIQUES WITH FIBERGLASS 2-HOUR VIDEO ON ALL ASPECTS OF CONSTRUCTING FIBERGLASS FUSELAGES GLASSING IN FORMERS INSTALLING HATCHES ALIGNING THE TAIL AND WING FILLING PIN HOLES PRIMING AND PAINTING 1995 * $300 Bhlpplng $600 foreign orders AEROBATICS AND GROUND HL 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKEOFFS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE! $1995 shipping t$600 foreign orders BUILDING IT RIGHT THE FIRST TIME 2-2 HOUR VIDEOS SHOWING ALL DETAILS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUIING WING CONSTRUCTION RADIO INSTALLATION PUSHRODS ALIGNMENT BALANCING AND MUCH MORE $3495 shipping $600 foreign orders TAPES AVAILABLE IN Lfl ONLY SEND CHECK OR MO TO PLANE VIDEO PO BOX 23128 CLI yE IA 50325 OR CALL 1-800-383-8251 24 HR TOLL FREES OR 515-223-0879 2IOWA RESIDENTS PLEASE ADD 8% BALES TAX Ieveland Model SUpply UD rr.re 100005 PochedOIeIIos 801 Frieod'SInce 8019 18"NP0""I pococ 0178087 AVENUE II85BO8IS 44SBSII9A98E98~ 01514 FlyjOg Weigh 010, F, 0 C,I room rlyngOroce Alom Londing Geor door Conopy A,oiloble Bojidor 11 $255 Shrored hr $365" SnI,nr Shoered Kil S095 Although EP usually smooth-flying helicopter ran vibration blade tracking problem high head speed 1800 rpm traced blade grips blade grips attached head single screw very tight loosened trifle blade grip could rotate slightly lead/lag cured problem modifications Concept EP has able provide solid two minutes max performing flight including loops rolls flying inverted make sure flight time exceeded set timer go off after two minutes got ground right away because wasnt much hattery reserve Also after talking others race cars familiar care feeding high charge discharge batteries found best completely discharge batteries before charging together SR Smart Charger gave us power could put SR packs Although electric helicopters arent everyone challenge can give very acceptable aerobatic performance next step meet MITs goal judge small piece sky can use loop rollwith objective eventually performing maneuvers indoors experiments big mainframe computer will have brought outdoors helicopter virtually impos sible helicopter will have go indoors computer will mean getting maneuverability can EP possibly developing some new different flying techniques Naturally have ideas welcome Ill keep posted progress ld-Timers/Baker Continued page 111 Price $6 fine-looking plans should good CO2 well rubber mini-electric Also available $150 1947 MAN plan twin-boom pusher tiny CO2 motors Howard McEntee 12-inchspan Fleet Trainer Megow also GLIDERS really know what youre doing MODEL SAILPLANES MYTH MAGIC Tony Upso no Math either Laymen Wives Lovers 170 readable pages $1895 plus $300 S&H Beefsteak Mines Ltd Box 1645 Jackson Wy 83001 FAX 307 733 7153 write fax brochure $150 sure enclose postageI am sure will refund extraor send SASE get complete list postage data WW plans look like would enlarge nicely drawn 3/4-inch-tothe-foot scale run about 20 22 inches span show K&B 020 power show priotwood patterns months photos shows balsa aluminum paper dummy GHQ engine produced Jim Duckworth Weight 36 grams engine could attached electric Old-Timer model wish photo colorthe details finish great Price $25 Jim Duckworth 123 Forest Lake Dr Warner Robins GA 31093 Thats room get Keep cards letters coming Next column will cover some frequently asked questions ndoor/Tenny Continued page 113 MarylandGoddard NAS Goddard NAS record trials flying sessions scheduled auditorium Building 8 Goddard NAS Saturdays 11 am till 1030 pm June 26 July 17 Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 1992 Sanctioned national FAI record trials Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 NASA security requires attendees US citizens AMA members licenses available inspection gate list compiled Tom Vallee must notify Tom intention attend advance meet Changes NASA launch schedules other possible events can preempt use auditorium much warning sure verify date Tom before leave home Tom Vallee 444 Henryton South Laurel MD 20707 Tel 301 498-0790 New JerseyLakehurst New dates Lakehurst #1 under negotiation press time Contact Gary Underwood address shown below find dates decided upon general dates expected almost weekly #1 Use Electric Connector Ar44t A'mAnS Rates tO Amps 600 V DC Ererincal Renstance 250 M crohnn Modular Cooranees naP op 1 Sermos Super Connector Lifetime Guarantee $500 per packet 2 Sermos Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 Sermos insertion & Extraction Toot $800 per tool Mimiman Order $1 500 PLUS $200 Shipping Handeling Oniy Certified Checks Mosey Orders accepted payment orders Distributors Dealers Inquiries Invited Please call 203 322-8294 farther information Sm9S R/G SNAP CONNECTORS INC Cedar Corners StatIcs Box 16787 Stamford CT 06905 FOR THREADED CYLS AND COVERS FOR SPITFIRE CYKE BROWN AND BUNCH OTHERS BY REQUEST FOR FULL INFO WRITE BOB MCCORD 325-93 SYLVAN AVE MTN VIEW CALIF 94041-1640 July1993 179
Edition: Model Aviation - 1993/07
Page Numbers: 99, 178, 179
RADIO CONTROL HELICOPTERS THE interesting helicopter ONEOF cts Im working includes being member Massachusetts Institute Technology MIT Unmanned Aerovehicle Team MIT approached couple years ago interested developing guidance system vehicle will hover go forward flight perform aerobatic maneuvers model helicopter certainly seemed fit requirements readily available inexpensive compared other larger vehicles ready supply spare parts Although work has 60-size helicopters article details experiments improve electric helicopter flight meet MITs requirements initiate feasibility study talked Ron Osinski member Pittsburgh Area Roto Runners Ron have PARR club members several years regarded expert Concept helicoptersfrom Concept 60 Concept 30 Concept EP Concept EP designed electric helicopter getting hover fly forward flight easy maximize performance aerobatics would challenge experiments writing article direct result Rons untiring efforts involving hours research numerous experiments began stock EP comes about 75% assembled right out box modified reduce weight improve engine power first step call Tim Lampe Great Planes Model Distributing Great Planes Model Distributing P 0 Box 4021 Champaign IL 61820 since Tim factory expert several lightweight parts EP Im going list Im sure Tim will glad help anyone interested next step modify EP maximum performance changes actually evolved during ground flight tests presented logical sequence stock EP has about 90 collective pitch travel wanted increase improved aerobatics Ron noticed arm connected pitch slider restricted top end connecting ball hitting side frame fuselage No matter much throw available servo mechanical restriction always restricted pitch throw first cure mount ball outside bellcrank restricted aileron servo mount So out came old Dremel small clearing ground away servo mount increasing pitch range about 180 enough both normal inverted flying Remember said max performance standard electric motor supplied EP Kyosho AP 36 18/2 wind factory-set 60 advanced timing Although good motor general flying Ron tried several changes modifications improve its performance However soon became apparent powerful motor would needed flight performance mind again meant modifying EP motor mount therefore gear mesh nonadjustable gears sealed keep clean Ron first elongated holes motor mounting plate motor could moved adjust gear mesh several trial pinion gears determine gave best performance bottom EP also ground away could see gears adjust mesh slightly reduced EP s weight Several motors gear ratios tried Fantom Motor Fantom Motors 209 North Haver St Hartford MI 49057 standard 16-tooth pinion giving best performance Ron called Fantom factory ask other recommendations company nice enough customwind 15-turn quad 24 motor also adjusted dyno-timed motor max performance perform did Hover rpm skytached 1850 rpm could maintained just over three minutes Now EP motor taken care next step round out package radio batteries charger used Futaba Futaba Corporation America Box 19767 Irvine CA 927 13-9767 Super Seven heli radio miniature S-133 servos G155 gyro Continued page 178 July1993 99 EP Concept modified electric power ready initial flight tests Futaba Super Seven hell radio SR Batteries flight packs Fantom motor Micro Futaba servos gyro make EP floor cut away expose motor receiver motor appear large mounting plate gears other comparison Note overall high quality motors gear ratios could tried Receiver atop Jomar speed controller tiny CGS Bug receiver supplies radio power airborne battery SCAEOFPLANS* IGP OP OP T8ABBRRVIATEO NAO8R 1124S1 I6BZ 1/8 SZ1/6 sz 1/4 SE 3/59ev Corner Sore2292032403266944132598 40Voog6t Core 14U205203052660545 13Coo JS4D Jenny21918325246553886 552 27LlodbeOge 512111551434 5246053491548 29Hero TeperHing1551422 02045$3460048i0562 36WeelInd Lycander2591837 5247553CO 2 35Doo 046A 05cr235243453268546 29Boo og 100 SporE15516224524455361605 R 9 33SEIn ToIoOEOr30930450389056212057 39LokLihEo18451528 2056534I 2556 25Vgr Core 0201/418 2027 28 o5 38Con Cello PETS52 4878 60104 19Coollee NC462406694589 17FolSer 07 Ftr1491221516 530-o4549 31Boyle GeeBee11451217451455324 544 70 56 13Sopereorlre S6B13 510224513444 2660 38 89 52 360000 Golfbeok14401421491843436SCALE PLAN 33Look Elerrre #11275254153255 38Look Eler 94 43Groin Avenger ml3052840 03880 2lord 3M 4AT6 42floe BS7G FlyForE5194077 955floe B170 38BA Hitokell 82536453755952NA 92 34HerolCeetolHC7215401523 0220o45351 H 8-26 6 37Cor Bevy 503C11951828452457536SIlo Tn 4 25CRerer 53C1 &211 515164920 odlyPe e 6 34Doog Trenep DC34754071950oo 0 CorI Henk 16115491523492247 4 4 32DoollOtlee OBILI1249171845223753549 46 74 58 31BoO 148-3M P12B15916224520444532594 44 89 58 32Sprfld BollDog134916209204093253A 80958 32Honsrd Ekellilke10495215491531926- 62945 34Toroer 6858 Barer13912194516399283 540 78952 35How Hr Blolllgeo16 9152349204793264944 94956 33Boc 126A Los 88014 91521 9204293263 45 84958 35Stlneon TW S314525 42088 HoeqolBo Boek3749244193581550908965 37Steereeo P11716 91824492249938~9 9 43N Bik WIdow 16133 940e9405099575 SI 30TABS Hwke Ten13144913114918439368609 42CHelldlvr SB2C42552587493574060I5 26lord Toleoto 4AT38 9387 04814 31Belleor AIr Boe32 922eB 930969S2 33Groen 321 look19492889040158955179068K 27CSeehewk 1711154518l34524I47538631950L9 65 28SIk AOphlk 13836534 16HPg 0400 90065094575951 31LIy e LSlrEoe2151631452218 936 31Howerd RerPete10512L3015130930 05 2 31C Sperkok 19021249II 33Aeroor C3 Opt189 38lorOene Peeco Si1249 03WrIght 116cr6 IlIAD BEFORE 01010190* 8110099784 ORDER915 ooAT ONE BE 5081 TO 450 TIlE 050 " 400LLANUNOERI/B4BIZRN AL 10% FOR PACKAGING POSTAGE AND INSOSANCE ABOUT THOUSAND ADOOTIONAL PLANS KANT siyos e SOr-975 CATALOG $200 OR PRICE LIST ALONE 01 77771Y7Tl77737777TL AIR 1050108 53KLLhLULLXL1ILALaLLL3JSU 178 Model Aviation 4When have plate cut shape drill 1A6-inch holes mounting screw loca tions have current model Radio Shack meter suggest confirm mounting hole locations before drillingjust make sure theres nothing right inside meter case get damaged As will see plate holes first used reference centers will enlarged later Next disassemble metereasily done removing battery cover cells well single case screw Carefully separate case halves printed circuit board assembly encourage handle circuit board assembly edges keep fingers off circuitry surfaces Use temporary wood rails -inch- 3/s-inch-square balsa okay rest edges inverted case bottom press plate against case end pictured Take care center up accurately sure plate right side up sure flush bottom edge casethis reason rails first place use double stick tape back plate prevent slipping during next operation drilling case holes Using A6 bit two plate pilot holes drill guides drill case end about Remove plate enlarge two holes case 353 inch Trial reattach plate using #2 x -inch sheet metal screws latter easily screw bite I5 case holesthreading way Remove plate reassemble meter Form wire stand carefully shown studying newer meter estimate stand will have made about 3/32-inch wider about Vs-inch shorter because newer case slightly wider vicinity alphanumeric display original stand length would allow hit raised selector switch folded sure confirm suggestions own satisfaction may take attempt get stand wire formed just right Anyway used 055 steel wire hobby shop good enough since landing gear per se Smooth burrs cut wire ends make stand operation smooth Assemble wire short ends resting case groove bearing attach plate hold wire place Test fold open stand Initially will probably very snug fitespecially newer case design appears have smaller groove formed case top bottom interface have found case groove can easily opened up first running A6 bit plate tightly place removes very little case plastic does make much better round bearing surface wire ends Also may have some touch-up bending latter get em just right Reinstall wire stand plate Operation stand quite simple stand wire deployed open position just squeeze wire verticals near case press wire against latter engage rear stop plate put away just fold stand back meter top surface Routine use wire stand should very easy convenient youre like youll soon wonder ing ever got along accessory makes meters much pleasant easy use So ends yet column Please sure enclose SASE corre spondence youd like reply Happy Quiet Electric Landings Everyone elicopteriTradelius Continued page 99 Batteries used SR SR Batteries Box 287 Bellport NY 11713 1100-mAh eight-cell pack Sermos connectors together SRs new Smart Charger Cycler handle peak charging speed controller Jomar SM-4 provided almost linear response idle off full power Also CGS Electronics CGS Electronics 7171 Steubenville Pike Oakdale PA 15071 Bug used power receiver large SR batteries thereby eliminating need separate receiver power supply collective pitch range set tarted initial flight tests I ULTIMATESPORT RC 255 EonS Anhlood/P 0 Boo 727/Sodo Sp,ng, Idoho 83274 8LTNOI8 80 RIPE1 200-547-3742P0 Fohe Io Se,d SASE LA 0 PLANE VIDEO GIVES YOU LIBRARY OF VIDEOS ON THE CONSTRUCTION OF RADIO CONTROLLED AIRPLANES WITH EASY TO FOLLOW INSTRUCTIONS NEW!NEW TECHNIQUES WITH FIBERGLASS 2-HOUR VIDEO ON ALL ASPECTS OF CONSTRUCTING FIBERGLASS FUSELAGES GLASSING IN FORMERS INSTALLING HATCHES ALIGNING THE TAIL AND WING FILLING PIN HOLES PRIMING AND PAINTING 1995 * $300 Bhlpplng $600 foreign orders AEROBATICS AND GROUND HL 105 MINUTES ON AERODYNAMICS AND STALL THEORY VIDEO COVERS PROPER TAKEOFFS SPINS CROSS WIND TECHNIQUES SNAP ROLLS AND MORE! $1995 shipping t$600 foreign orders BUILDING IT RIGHT THE FIRST TIME 2-2 HOUR VIDEOS SHOWING ALL DETAILS NECESSARY TO CONSTRUCT WOOD AIRCRAFr INCLUIING WING CONSTRUCTION RADIO INSTALLATION PUSHRODS ALIGNMENT BALANCING AND MUCH MORE $3495 shipping $600 foreign orders TAPES AVAILABLE IN Lfl ONLY SEND CHECK OR MO TO PLANE VIDEO PO BOX 23128 CLI yE IA 50325 OR CALL 1-800-383-8251 24 HR TOLL FREES OR 515-223-0879 2IOWA RESIDENTS PLEASE ADD 8% BALES TAX Ieveland Model SUpply UD rr.re 100005 PochedOIeIIos 801 Frieod'SInce 8019 18"NP0""I pococ 0178087 AVENUE II85BO8IS 44SBSII9A98E98~ 01514 FlyjOg Weigh 010, F, 0 C,I room rlyngOroce Alom Londing Geor door Conopy A,oiloble Bojidor 11 $255 Shrored hr $365" SnI,nr Shoered Kil S095 Although EP usually smooth-flying helicopter ran vibration blade tracking problem high head speed 1800 rpm traced blade grips blade grips attached head single screw very tight loosened trifle blade grip could rotate slightly lead/lag cured problem modifications Concept EP has able provide solid two minutes max performing flight including loops rolls flying inverted make sure flight time exceeded set timer go off after two minutes got ground right away because wasnt much hattery reserve Also after talking others race cars familiar care feeding high charge discharge batteries found best completely discharge batteries before charging together SR Smart Charger gave us power could put SR packs Although electric helicopters arent everyone challenge can give very acceptable aerobatic performance next step meet MITs goal judge small piece sky can use loop rollwith objective eventually performing maneuvers indoors experiments big mainframe computer will have brought outdoors helicopter virtually impos sible helicopter will have go indoors computer will mean getting maneuverability can EP possibly developing some new different flying techniques Naturally have ideas welcome Ill keep posted progress ld-Timers/Baker Continued page 111 Price $6 fine-looking plans should good CO2 well rubber mini-electric Also available $150 1947 MAN plan twin-boom pusher tiny CO2 motors Howard McEntee 12-inchspan Fleet Trainer Megow also GLIDERS really know what youre doing MODEL SAILPLANES MYTH MAGIC Tony Upso no Math either Laymen Wives Lovers 170 readable pages $1895 plus $300 S&H Beefsteak Mines Ltd Box 1645 Jackson Wy 83001 FAX 307 733 7153 write fax brochure $150 sure enclose postageI am sure will refund extraor send SASE get complete list postage data WW plans look like would enlarge nicely drawn 3/4-inch-tothe-foot scale run about 20 22 inches span show K&B 020 power show priotwood patterns months photos shows balsa aluminum paper dummy GHQ engine produced Jim Duckworth Weight 36 grams engine could attached electric Old-Timer model wish photo colorthe details finish great Price $25 Jim Duckworth 123 Forest Lake Dr Warner Robins GA 31093 Thats room get Keep cards letters coming Next column will cover some frequently asked questions ndoor/Tenny Continued page 113 MarylandGoddard NAS Goddard NAS record trials flying sessions scheduled auditorium Building 8 Goddard NAS Saturdays 11 am till 1030 pm June 26 July 17 Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 1992 Sanctioned national FAI record trials Sept 11 Sept 25 Oct 9 Oct 23 Nov 6 NASA security requires attendees US citizens AMA members licenses available inspection gate list compiled Tom Vallee must notify Tom intention attend advance meet Changes NASA launch schedules other possible events can preempt use auditorium much warning sure verify date Tom before leave home Tom Vallee 444 Henryton South Laurel MD 20707 Tel 301 498-0790 New JerseyLakehurst New dates Lakehurst #1 under negotiation press time Contact Gary Underwood address shown below find dates decided upon general dates expected almost weekly #1 Use Electric Connector Ar44t A'mAnS Rates tO Amps 600 V DC Ererincal Renstance 250 M crohnn Modular Cooranees naP op 1 Sermos Super Connector Lifetime Guarantee $500 per packet 2 Sermos Super Charging Jack Lifetime Guarantee $550 per packet 3 Sermos Standard Connector $400 per packet 4 Sermos Standard Charging Jack $450 per packet 5 Sermos Standard Arming Switch $400 per packet 6 Sermos insertion & Extraction Toot $800 per tool Mimiman Order $1 500 PLUS $200 Shipping Handeling Oniy Certified Checks Mosey Orders accepted payment orders Distributors Dealers Inquiries Invited Please call 203 322-8294 farther information Sm9S R/G SNAP CONNECTORS INC Cedar Corners StatIcs Box 16787 Stamford CT 06905 FOR THREADED CYLS AND COVERS FOR SPITFIRE CYKE BROWN AND BUNCH OTHERS BY REQUEST FOR FULL INFO WRITE BOB MCCORD 325-93 SYLVAN AVE MTN VIEW CALIF 94041-1640 July1993 179