FREE FLIGHT DURATION U W1 ml L- rvl r1 M jvu ru WT3 L-U HE AUGUST COLUMN mentioned Ukrainian Wakefields near-miss ground flier stretched delayed prop release DPR out bit too long maxed anyway thought flier Eugeny Gorban after August column production Tucson FiB flier Vein Walters called correction flier actually Yuri Blachevich ended up seventh place Vein should knowhe Sal Fruciano spent week field Yuri winner Alexander Andriukov Vein said watched Yuri launch delay long model stalled nearly hit ground zoomed up max Andriukov also watching shortened delay time slightly before launching no problems Andnukov made another slight adjustment just before final flyoff round opened glide turn up slightly give almosttwo-minute circle glide obviously worked did almost nine minutes Gorban other hand tweaked stab up just bit stalled way down still did four minutes Later told Ed Turner going throw away screwdriver DPR Part Two Last time talked about various DPR front ends worked time well discuss critical part making sure work No matter what front end use still must connected back timer Most systems Ive seen use solid wire running nose back pylon simplest system favored Andriukov uses piece piano wire right- angle bend back trapped behind disc timer blocked rearward movement small screw head timer faceplate timer begins turn slot disc moves over wire allowing ride up back past screw head sketch Free Flight News should explain other system uses extra wire lever timer lever extends forward aluminum block pivot lever goes through block bent down blocks foreand-aft hole block wire DPR front end extends through hole blocked timer lever timer trips fraction second after launch lever flips up allowing wire move rear prop starts turning presupposes accurate timer good start switch works time just isnt going get Thirty-two strands FAI Tan II rubber will pull model straight up very fast will pull straight down faster Make sure everything works perfectly time World Championships spotted couple other prop release systems merit some discussion Both start-onrelease systems allowing one-handed launch delay Danish flier Jens Kristiensen used lever side motor tube keep motor unwinding cable led back another lever side pylon moment launch lever would flip forward allowing lever front pivot out way type system blades have either short enough clear wing needs some system hold out far enough clear wing Im sure exact system Jens uses system have tried uses thin music wire catches hold blades back about 300 angle prop starts turning centrifugal force swings blades out running position Another interesting system uses no catches lines levers instead uses two piano wire cams carefully positioned noseblock After model wound held hand prop blades folded back underneath motor tube hand keeps turning other blade folded back over top wing release blades start turn folded position before can hit foul wing two wire cams push blades out forward position very simple am convinced one-handed launch much easier master conventional quick get left hand out way hitting blades method weve using years can put effort launch throw model 102 Model Aviation inian winder shown Morrel winder uses umbrella-type handle Built-in torque meter Text has details German start-on-release system uses wire cams nose ring DPR system uses spring-loaded wire front end through force blades flying position before contact wing block timer Lever blocks wire until 1A sec after launch large DPR timer disc file flat wire pylontapered bolt go under disc put 16 swg wire drill chuck can grind down front before use can fit prop hole Also way remove weight wing wires end cut off Sketch scale sliding latch springlike doorbolt drill chuck LII cut off very thin LIGHT spring distance must internal DPR prop assembly bend wire go outside inside fuselage l6swg brass tube 1/16 ply strip outside fuselage l6swgwrre 065 dural faceplate MUST bend ARVlTboth at45to5Ssec tapered lOBA bolt timer x slot fuselage 24 hr Araldite outside fuselage bind 16 swg brass tube solder soldered rod \ 16 swg brass tube 1/16 ply outside fuselage 16 swg wire l6swg brass tube sliding latch bind tube 1/16 ply strip kevlar thread Above drawing shows launch mode Latch held under timer disc front tapered bolt timer disc revolves 05 sec light spring pushes arm out rod can go back releasing DPR Very little load timer 0 C 0 0 -o 0 0 0 0 o - LL LL 0 4 C vertically run risk hitting blade possibly breaking blade Give DPR least start-on-release try CAD FF work Ive using both two-dimensional 3-D CAD Computer Aided Design system last year Once got used software seems much easier conventional triangle-and-T-square drafting certainly much accurate conventional drafting considerably faster same company makes software use work American Small Business Computers also markets stripped-down simplified very affordable $99 CAD system modelers ModelCAD offers advantages regular 2-D software plus couple other things just modeling called ModelCalc plug numbers latest design computer tells will fly course intended RC punched numbers typical FlC power model Randy Archer s According ModelCalc plane probably overpowered wings may have tendency rip off Im glad nobody told Randy before won second world championship row considerably use airfoils included software list includes couple dozen Benedeks though popular B-6356b RAF 32 old Babic Nordic section lots RC glider airfoils best use Ive found ModelCad drawing full-sized wing stab plans First draw outline half wing zoom add ribs spars etc make mirror image give other half wing Drawing done screen arbitrary units Normally set cursor move unit per stroke units can anything light years inches cubits whatever Since design build metric system used millimeters quickly found out drawing 400mm-long wing panel took way too strokes get around first tried using x y coordinates locate corners wing faster change cursor setting would move 10 units time Line width also adjustable draw rib locations plan set line width 16 units draw ribs print plan out full size 254 units per inch rib lines will 16mm apartjust right show slightly side tAs balsa ribs glue down Since dont have plotter use regular printer 8/2 x 11 paper program automatically tiles drawing ModelCad available American Small Business Computers Inc 327 South Mill Pryor OK 74361 Tel 918 825-4844 FFn One best free flight newsletters TNE VERSATILE EPOXY SYSTEM WEST SYSuE44 0 Sands Easily 4No Mess Metering Pumps 6Very Long Shelf Ufe 4Full Line Fillers COne Resin Four Hardeners~6 BondingCoatingFairing FilletingLaminatingRepairs Dealer & ManuFacturer Inquiries Welcome Detail Product Information Send $3 Composite Structures Technology P 0 Box 642 Dept JH Tehachapi CA 93581 Order Desk 1-800-338-1278 five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-1 Fits FUTABA S28/S 128 538/S 138 S48/S 148 Servos set 4$2595 BC-2As above set 1$695 ~C3Fits AIRTRONICS 94102 Servos set 4$2595 2-4As above set 1$695 nnC-5Ball Bearing Only JR 501 507 RCDAPOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER IS-Si Servos set 4$1995 Add $300 shipping Handling orders /14 692-1393 Info Only california Realdente Add 775% Salea Tax 800 845-8978 Orders Only VISA MASTERCARD Accepted free flight fun Peck-Polymers planes plans CO2 engines US Czechoslovakia tremendous assortment types sizes props paper tools next vlission YortJa Linda caper2 WVA catalog kits accessories engines nine-cylinder radial engine 4 endless ideas available $400 PeckPolymers stop shopping rubber power COa needs P 0 Box 710399MASANTEE CA a2a72a3aa USA1619 481818FAX 619 4461833 October 1994 105 Sukhoi Su-2 6 RIG Sport Scale 40 Size ARF Aembatic Airplane MADE IN THE USA NEW auso t.nannels Wing AitFuselage Balsa plywood Length4 t weight vacuum WeighL52 lbs ing parts Engine40 402 Struke WingFoam Cores 48.604Stroke Allhmdware&cowL High Quality Coveting Aluminum landing gear fuel resident printing canopy included S00SS NS PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSTRY CA 91745 818 9614616 8183309510 818 3309351 FA~ world British monthly Free Flight news typical issue will contain couple three-views several airfoil sections useful text pieces aspects competition free flight including Indoor Contest results want ads technical articles round out coverage Since editors Ian Kaynes actively involved Free Flight subcommittee international aeromodeling organization ClAM FFn often first place hear about FAI rules changes years subscription 12 issues $24 year surface mail $34 air mail address FFn 7 Ashley Road Farnborough Hants England GUl4 7EZ Payment should payable through British bank N No long can remember civilian aircraft registered United States have carried letter N preceding aircraft number Models flown international events also carry letter N followed fliers AMA number never did know what N stood few other county designations made some sense like F France G Great Britain Others based name country its own language rather English name Examples include D Deutschland Germany H Helvetia Switzerland CCCP USSR Some designations made no sense whatsoever including OY Denmark 4X Israel thats changing According article FFn FAI has voted adopt abbreviations used International Olympic Committee new designations typically three letters long fairly obvious USA United States CAN Canada ISR Israel GER Germany new rule will go effect next Sporting Code due out January 1997 Winding Up Sal Fruciano loaned Ukrainian winders made Yuri Blachevich As can see photos unit quite bit different Morrel winder US modelers use Ukrainian winder light 493g very clean appearance gear ratio four keeping track turns easy built-in counter winder shown comes built-in torque meter goes 0 9 have no idea what units represents neither does Sal business end features 8mmdiameter hole spring-loaded release pin perfect fit Ukrainian front ends winding prop attached However bit small detachable winding hooks normally use country umbrella-type handle surprisingly comfortable use although its inch ar long Watching fliers former Soviet Union action noticed hook handle high up left armalmost armpitand really pull saw Andriukov after contest out pool noticed red welts left arm winding found winder very smooth quiet virtually no noise backlash quality piece equipment Sal has limited number winders available model torque meter goes $160 plain model torque meter $110 Write Sal Fruciano Starline 6146 East Cactus Wren Rd Scottsdale AZ 85253 Tel 602 948-5798 45 Join Giants Help Promote HI GI- - Non-CompetitiveI 7J asssetoeying Large RIC Air Craft AA membership includes quarterly magazine High Flight I MEMBERSHIP APPLICAllON NEW l RENEWAL Date19I Yearly Dues$1500 USA $2000 US Canada & Mexico $3000 US ElsewhereI Make CHECK MONEY ORDER Payable INTERNATiONAL MINIATURE AIRCRAFT ASSOCIATION INC I Name __________________________________________ Phone ____________________________ I Street ______________________________________ P0 Box/Route Box ________________ City ______________________State/Province ________________Zip ________________ I IMAA __________AMA Number ___________MAAC __________Chapter __________ L TO IMAA Secretary DON E VINEYARD e 2055 Hilldale Road a KS 67401 106 Model Aviation light Training Beginner advanced tailored individual long-time modeler full size airplane flight instruc tor will maJe progress fun easy during week stay beautiful far western North Carolina Write call information RC Fight Training LR289I 7043894968
Edition: Model Aviation - 1994/10
Page Numbers: 102, 103, 105, 106
FREE FLIGHT DURATION U W1 ml L- rvl r1 M jvu ru WT3 L-U HE AUGUST COLUMN mentioned Ukrainian Wakefields near-miss ground flier stretched delayed prop release DPR out bit too long maxed anyway thought flier Eugeny Gorban after August column production Tucson FiB flier Vein Walters called correction flier actually Yuri Blachevich ended up seventh place Vein should knowhe Sal Fruciano spent week field Yuri winner Alexander Andriukov Vein said watched Yuri launch delay long model stalled nearly hit ground zoomed up max Andriukov also watching shortened delay time slightly before launching no problems Andnukov made another slight adjustment just before final flyoff round opened glide turn up slightly give almosttwo-minute circle glide obviously worked did almost nine minutes Gorban other hand tweaked stab up just bit stalled way down still did four minutes Later told Ed Turner going throw away screwdriver DPR Part Two Last time talked about various DPR front ends worked time well discuss critical part making sure work No matter what front end use still must connected back timer Most systems Ive seen use solid wire running nose back pylon simplest system favored Andriukov uses piece piano wire right- angle bend back trapped behind disc timer blocked rearward movement small screw head timer faceplate timer begins turn slot disc moves over wire allowing ride up back past screw head sketch Free Flight News should explain other system uses extra wire lever timer lever extends forward aluminum block pivot lever goes through block bent down blocks foreand-aft hole block wire DPR front end extends through hole blocked timer lever timer trips fraction second after launch lever flips up allowing wire move rear prop starts turning presupposes accurate timer good start switch works time just isnt going get Thirty-two strands FAI Tan II rubber will pull model straight up very fast will pull straight down faster Make sure everything works perfectly time World Championships spotted couple other prop release systems merit some discussion Both start-onrelease systems allowing one-handed launch delay Danish flier Jens Kristiensen used lever side motor tube keep motor unwinding cable led back another lever side pylon moment launch lever would flip forward allowing lever front pivot out way type system blades have either short enough clear wing needs some system hold out far enough clear wing Im sure exact system Jens uses system have tried uses thin music wire catches hold blades back about 300 angle prop starts turning centrifugal force swings blades out running position Another interesting system uses no catches lines levers instead uses two piano wire cams carefully positioned noseblock After model wound held hand prop blades folded back underneath motor tube hand keeps turning other blade folded back over top wing release blades start turn folded position before can hit foul wing two wire cams push blades out forward position very simple am convinced one-handed launch much easier master conventional quick get left hand out way hitting blades method weve using years can put effort launch throw model 102 Model Aviation inian winder shown Morrel winder uses umbrella-type handle Built-in torque meter Text has details German start-on-release system uses wire cams nose ring DPR system uses spring-loaded wire front end through force blades flying position before contact wing block timer Lever blocks wire until 1A sec after launch large DPR timer disc file flat wire pylontapered bolt go under disc put 16 swg wire drill chuck can grind down front before use can fit prop hole Also way remove weight wing wires end cut off Sketch scale sliding latch springlike doorbolt drill chuck LII cut off very thin LIGHT spring distance must internal DPR prop assembly bend wire go outside inside fuselage l6swg brass tube 1/16 ply strip outside fuselage l6swgwrre 065 dural faceplate MUST bend ARVlTboth at45to5Ssec tapered lOBA bolt timer x slot fuselage 24 hr Araldite outside fuselage bind 16 swg brass tube solder soldered rod \ 16 swg brass tube 1/16 ply outside fuselage 16 swg wire l6swg brass tube sliding latch bind tube 1/16 ply strip kevlar thread Above drawing shows launch mode Latch held under timer disc front tapered bolt timer disc revolves 05 sec light spring pushes arm out rod can go back releasing DPR Very little load timer 0 C 0 0 -o 0 0 0 0 o - LL LL 0 4 C vertically run risk hitting blade possibly breaking blade Give DPR least start-on-release try CAD FF work Ive using both two-dimensional 3-D CAD Computer Aided Design system last year Once got used software seems much easier conventional triangle-and-T-square drafting certainly much accurate conventional drafting considerably faster same company makes software use work American Small Business Computers also markets stripped-down simplified very affordable $99 CAD system modelers ModelCAD offers advantages regular 2-D software plus couple other things just modeling called ModelCalc plug numbers latest design computer tells will fly course intended RC punched numbers typical FlC power model Randy Archer s According ModelCalc plane probably overpowered wings may have tendency rip off Im glad nobody told Randy before won second world championship row considerably use airfoils included software list includes couple dozen Benedeks though popular B-6356b RAF 32 old Babic Nordic section lots RC glider airfoils best use Ive found ModelCad drawing full-sized wing stab plans First draw outline half wing zoom add ribs spars etc make mirror image give other half wing Drawing done screen arbitrary units Normally set cursor move unit per stroke units can anything light years inches cubits whatever Since design build metric system used millimeters quickly found out drawing 400mm-long wing panel took way too strokes get around first tried using x y coordinates locate corners wing faster change cursor setting would move 10 units time Line width also adjustable draw rib locations plan set line width 16 units draw ribs print plan out full size 254 units per inch rib lines will 16mm apartjust right show slightly side tAs balsa ribs glue down Since dont have plotter use regular printer 8/2 x 11 paper program automatically tiles drawing ModelCad available American Small Business Computers Inc 327 South Mill Pryor OK 74361 Tel 918 825-4844 FFn One best free flight newsletters TNE VERSATILE EPOXY SYSTEM WEST SYSuE44 0 Sands Easily 4No Mess Metering Pumps 6Very Long Shelf Ufe 4Full Line Fillers COne Resin Four Hardeners~6 BondingCoatingFairing FilletingLaminatingRepairs Dealer & ManuFacturer Inquiries Welcome Detail Product Information Send $3 Composite Structures Technology P 0 Box 642 Dept JH Tehachapi CA 93581 Order Desk 1-800-338-1278 five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-1 Fits FUTABA S28/S 128 538/S 138 S48/S 148 Servos set 4$2595 BC-2As above set 1$695 ~C3Fits AIRTRONICS 94102 Servos set 4$2595 2-4As above set 1$695 nnC-5Ball Bearing Only JR 501 507 RCDAPOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER IS-Si Servos set 4$1995 Add $300 shipping Handling orders /14 692-1393 Info Only california Realdente Add 775% Salea Tax 800 845-8978 Orders Only VISA MASTERCARD Accepted free flight fun Peck-Polymers planes plans CO2 engines US Czechoslovakia tremendous assortment types sizes props paper tools next vlission YortJa Linda caper2 WVA catalog kits accessories engines nine-cylinder radial engine 4 endless ideas available $400 PeckPolymers stop shopping rubber power COa needs P 0 Box 710399MASANTEE CA a2a72a3aa USA1619 481818FAX 619 4461833 October 1994 105 Sukhoi Su-2 6 RIG Sport Scale 40 Size ARF Aembatic Airplane MADE IN THE USA NEW auso t.nannels Wing AitFuselage Balsa plywood Length4 t weight vacuum WeighL52 lbs ing parts Engine40 402 Struke WingFoam Cores 48.604Stroke Allhmdware&cowL High Quality Coveting Aluminum landing gear fuel resident printing canopy included S00SS NS PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSTRY CA 91745 818 9614616 8183309510 818 3309351 FA~ world British monthly Free Flight news typical issue will contain couple three-views several airfoil sections useful text pieces aspects competition free flight including Indoor Contest results want ads technical articles round out coverage Since editors Ian Kaynes actively involved Free Flight subcommittee international aeromodeling organization ClAM FFn often first place hear about FAI rules changes years subscription 12 issues $24 year surface mail $34 air mail address FFn 7 Ashley Road Farnborough Hants England GUl4 7EZ Payment should payable through British bank N No long can remember civilian aircraft registered United States have carried letter N preceding aircraft number Models flown international events also carry letter N followed fliers AMA number never did know what N stood few other county designations made some sense like F France G Great Britain Others based name country its own language rather English name Examples include D Deutschland Germany H Helvetia Switzerland CCCP USSR Some designations made no sense whatsoever including OY Denmark 4X Israel thats changing According article FFn FAI has voted adopt abbreviations used International Olympic Committee new designations typically three letters long fairly obvious USA United States CAN Canada ISR Israel GER Germany new rule will go effect next Sporting Code due out January 1997 Winding Up Sal Fruciano loaned Ukrainian winders made Yuri Blachevich As can see photos unit quite bit different Morrel winder US modelers use Ukrainian winder light 493g very clean appearance gear ratio four keeping track turns easy built-in counter winder shown comes built-in torque meter goes 0 9 have no idea what units represents neither does Sal business end features 8mmdiameter hole spring-loaded release pin perfect fit Ukrainian front ends winding prop attached However bit small detachable winding hooks normally use country umbrella-type handle surprisingly comfortable use although its inch ar long Watching fliers former Soviet Union action noticed hook handle high up left armalmost armpitand really pull saw Andriukov after contest out pool noticed red welts left arm winding found winder very smooth quiet virtually no noise backlash quality piece equipment Sal has limited number winders available model torque meter goes $160 plain model torque meter $110 Write Sal Fruciano Starline 6146 East Cactus Wren Rd Scottsdale AZ 85253 Tel 602 948-5798 45 Join Giants Help Promote HI GI- - Non-CompetitiveI 7J asssetoeying Large RIC Air Craft AA membership includes quarterly magazine High Flight I MEMBERSHIP APPLICAllON NEW l RENEWAL Date19I Yearly Dues$1500 USA $2000 US Canada & Mexico $3000 US ElsewhereI Make CHECK MONEY ORDER Payable INTERNATiONAL MINIATURE AIRCRAFT ASSOCIATION INC I Name __________________________________________ Phone ____________________________ I Street ______________________________________ P0 Box/Route Box ________________ City ______________________State/Province ________________Zip ________________ I IMAA __________AMA Number ___________MAAC __________Chapter __________ L TO IMAA Secretary DON E VINEYARD e 2055 Hilldale Road a KS 67401 106 Model Aviation light Training Beginner advanced tailored individual long-time modeler full size airplane flight instruc tor will maJe progress fun easy during week stay beautiful far western North Carolina Write call information RC Fight Training LR289I 7043894968
Edition: Model Aviation - 1994/10
Page Numbers: 102, 103, 105, 106
FREE FLIGHT DURATION U W1 ml L- rvl r1 M jvu ru WT3 L-U HE AUGUST COLUMN mentioned Ukrainian Wakefields near-miss ground flier stretched delayed prop release DPR out bit too long maxed anyway thought flier Eugeny Gorban after August column production Tucson FiB flier Vein Walters called correction flier actually Yuri Blachevich ended up seventh place Vein should knowhe Sal Fruciano spent week field Yuri winner Alexander Andriukov Vein said watched Yuri launch delay long model stalled nearly hit ground zoomed up max Andriukov also watching shortened delay time slightly before launching no problems Andnukov made another slight adjustment just before final flyoff round opened glide turn up slightly give almosttwo-minute circle glide obviously worked did almost nine minutes Gorban other hand tweaked stab up just bit stalled way down still did four minutes Later told Ed Turner going throw away screwdriver DPR Part Two Last time talked about various DPR front ends worked time well discuss critical part making sure work No matter what front end use still must connected back timer Most systems Ive seen use solid wire running nose back pylon simplest system favored Andriukov uses piece piano wire right- angle bend back trapped behind disc timer blocked rearward movement small screw head timer faceplate timer begins turn slot disc moves over wire allowing ride up back past screw head sketch Free Flight News should explain other system uses extra wire lever timer lever extends forward aluminum block pivot lever goes through block bent down blocks foreand-aft hole block wire DPR front end extends through hole blocked timer lever timer trips fraction second after launch lever flips up allowing wire move rear prop starts turning presupposes accurate timer good start switch works time just isnt going get Thirty-two strands FAI Tan II rubber will pull model straight up very fast will pull straight down faster Make sure everything works perfectly time World Championships spotted couple other prop release systems merit some discussion Both start-onrelease systems allowing one-handed launch delay Danish flier Jens Kristiensen used lever side motor tube keep motor unwinding cable led back another lever side pylon moment launch lever would flip forward allowing lever front pivot out way type system blades have either short enough clear wing needs some system hold out far enough clear wing Im sure exact system Jens uses system have tried uses thin music wire catches hold blades back about 300 angle prop starts turning centrifugal force swings blades out running position Another interesting system uses no catches lines levers instead uses two piano wire cams carefully positioned noseblock After model wound held hand prop blades folded back underneath motor tube hand keeps turning other blade folded back over top wing release blades start turn folded position before can hit foul wing two wire cams push blades out forward position very simple am convinced one-handed launch much easier master conventional quick get left hand out way hitting blades method weve using years can put effort launch throw model 102 Model Aviation inian winder shown Morrel winder uses umbrella-type handle Built-in torque meter Text has details German start-on-release system uses wire cams nose ring DPR system uses spring-loaded wire front end through force blades flying position before contact wing block timer Lever blocks wire until 1A sec after launch large DPR timer disc file flat wire pylontapered bolt go under disc put 16 swg wire drill chuck can grind down front before use can fit prop hole Also way remove weight wing wires end cut off Sketch scale sliding latch springlike doorbolt drill chuck LII cut off very thin LIGHT spring distance must internal DPR prop assembly bend wire go outside inside fuselage l6swg brass tube 1/16 ply strip outside fuselage l6swgwrre 065 dural faceplate MUST bend ARVlTboth at45to5Ssec tapered lOBA bolt timer x slot fuselage 24 hr Araldite outside fuselage bind 16 swg brass tube solder soldered rod \ 16 swg brass tube 1/16 ply outside fuselage 16 swg wire l6swg brass tube sliding latch bind tube 1/16 ply strip kevlar thread Above drawing shows launch mode Latch held under timer disc front tapered bolt timer disc revolves 05 sec light spring pushes arm out rod can go back releasing DPR Very little load timer 0 C 0 0 -o 0 0 0 0 o - LL LL 0 4 C vertically run risk hitting blade possibly breaking blade Give DPR least start-on-release try CAD FF work Ive using both two-dimensional 3-D CAD Computer Aided Design system last year Once got used software seems much easier conventional triangle-and-T-square drafting certainly much accurate conventional drafting considerably faster same company makes software use work American Small Business Computers also markets stripped-down simplified very affordable $99 CAD system modelers ModelCAD offers advantages regular 2-D software plus couple other things just modeling called ModelCalc plug numbers latest design computer tells will fly course intended RC punched numbers typical FlC power model Randy Archer s According ModelCalc plane probably overpowered wings may have tendency rip off Im glad nobody told Randy before won second world championship row considerably use airfoils included software list includes couple dozen Benedeks though popular B-6356b RAF 32 old Babic Nordic section lots RC glider airfoils best use Ive found ModelCad drawing full-sized wing stab plans First draw outline half wing zoom add ribs spars etc make mirror image give other half wing Drawing done screen arbitrary units Normally set cursor move unit per stroke units can anything light years inches cubits whatever Since design build metric system used millimeters quickly found out drawing 400mm-long wing panel took way too strokes get around first tried using x y coordinates locate corners wing faster change cursor setting would move 10 units time Line width also adjustable draw rib locations plan set line width 16 units draw ribs print plan out full size 254 units per inch rib lines will 16mm apartjust right show slightly side tAs balsa ribs glue down Since dont have plotter use regular printer 8/2 x 11 paper program automatically tiles drawing ModelCad available American Small Business Computers Inc 327 South Mill Pryor OK 74361 Tel 918 825-4844 FFn One best free flight newsletters TNE VERSATILE EPOXY SYSTEM WEST SYSuE44 0 Sands Easily 4No Mess Metering Pumps 6Very Long Shelf Ufe 4Full Line Fillers COne Resin Four Hardeners~6 BondingCoatingFairing FilletingLaminatingRepairs Dealer & ManuFacturer Inquiries Welcome Detail Product Information Send $3 Composite Structures Technology P 0 Box 642 Dept JH Tehachapi CA 93581 Order Desk 1-800-338-1278 five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-1 Fits FUTABA S28/S 128 538/S 138 S48/S 148 Servos set 4$2595 BC-2As above set 1$695 ~C3Fits AIRTRONICS 94102 Servos set 4$2595 2-4As above set 1$695 nnC-5Ball Bearing Only JR 501 507 RCDAPOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER IS-Si Servos set 4$1995 Add $300 shipping Handling orders /14 692-1393 Info Only california Realdente Add 775% Salea Tax 800 845-8978 Orders Only VISA MASTERCARD Accepted free flight fun Peck-Polymers planes plans CO2 engines US Czechoslovakia tremendous assortment types sizes props paper tools next vlission YortJa Linda caper2 WVA catalog kits accessories engines nine-cylinder radial engine 4 endless ideas available $400 PeckPolymers stop shopping rubber power COa needs P 0 Box 710399MASANTEE CA a2a72a3aa USA1619 481818FAX 619 4461833 October 1994 105 Sukhoi Su-2 6 RIG Sport Scale 40 Size ARF Aembatic Airplane MADE IN THE USA NEW auso t.nannels Wing AitFuselage Balsa plywood Length4 t weight vacuum WeighL52 lbs ing parts Engine40 402 Struke WingFoam Cores 48.604Stroke Allhmdware&cowL High Quality Coveting Aluminum landing gear fuel resident printing canopy included S00SS NS PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSTRY CA 91745 818 9614616 8183309510 818 3309351 FA~ world British monthly Free Flight news typical issue will contain couple three-views several airfoil sections useful text pieces aspects competition free flight including Indoor Contest results want ads technical articles round out coverage Since editors Ian Kaynes actively involved Free Flight subcommittee international aeromodeling organization ClAM FFn often first place hear about FAI rules changes years subscription 12 issues $24 year surface mail $34 air mail address FFn 7 Ashley Road Farnborough Hants England GUl4 7EZ Payment should payable through British bank N No long can remember civilian aircraft registered United States have carried letter N preceding aircraft number Models flown international events also carry letter N followed fliers AMA number never did know what N stood few other county designations made some sense like F France G Great Britain Others based name country its own language rather English name Examples include D Deutschland Germany H Helvetia Switzerland CCCP USSR Some designations made no sense whatsoever including OY Denmark 4X Israel thats changing According article FFn FAI has voted adopt abbreviations used International Olympic Committee new designations typically three letters long fairly obvious USA United States CAN Canada ISR Israel GER Germany new rule will go effect next Sporting Code due out January 1997 Winding Up Sal Fruciano loaned Ukrainian winders made Yuri Blachevich As can see photos unit quite bit different Morrel winder US modelers use Ukrainian winder light 493g very clean appearance gear ratio four keeping track turns easy built-in counter winder shown comes built-in torque meter goes 0 9 have no idea what units represents neither does Sal business end features 8mmdiameter hole spring-loaded release pin perfect fit Ukrainian front ends winding prop attached However bit small detachable winding hooks normally use country umbrella-type handle surprisingly comfortable use although its inch ar long Watching fliers former Soviet Union action noticed hook handle high up left armalmost armpitand really pull saw Andriukov after contest out pool noticed red welts left arm winding found winder very smooth quiet virtually no noise backlash quality piece equipment Sal has limited number winders available model torque meter goes $160 plain model torque meter $110 Write Sal Fruciano Starline 6146 East Cactus Wren Rd Scottsdale AZ 85253 Tel 602 948-5798 45 Join Giants Help Promote HI GI- - Non-CompetitiveI 7J asssetoeying Large RIC Air Craft AA membership includes quarterly magazine High Flight I MEMBERSHIP APPLICAllON NEW l RENEWAL Date19I Yearly Dues$1500 USA $2000 US Canada & Mexico $3000 US ElsewhereI Make CHECK MONEY ORDER Payable INTERNATiONAL MINIATURE AIRCRAFT ASSOCIATION INC I Name __________________________________________ Phone ____________________________ I Street ______________________________________ P0 Box/Route Box ________________ City ______________________State/Province ________________Zip ________________ I IMAA __________AMA Number ___________MAAC __________Chapter __________ L TO IMAA Secretary DON E VINEYARD e 2055 Hilldale Road a KS 67401 106 Model Aviation light Training Beginner advanced tailored individual long-time modeler full size airplane flight instruc tor will maJe progress fun easy during week stay beautiful far western North Carolina Write call information RC Fight Training LR289I 7043894968
Edition: Model Aviation - 1994/10
Page Numbers: 102, 103, 105, 106
FREE FLIGHT DURATION U W1 ml L- rvl r1 M jvu ru WT3 L-U HE AUGUST COLUMN mentioned Ukrainian Wakefields near-miss ground flier stretched delayed prop release DPR out bit too long maxed anyway thought flier Eugeny Gorban after August column production Tucson FiB flier Vein Walters called correction flier actually Yuri Blachevich ended up seventh place Vein should knowhe Sal Fruciano spent week field Yuri winner Alexander Andriukov Vein said watched Yuri launch delay long model stalled nearly hit ground zoomed up max Andriukov also watching shortened delay time slightly before launching no problems Andnukov made another slight adjustment just before final flyoff round opened glide turn up slightly give almosttwo-minute circle glide obviously worked did almost nine minutes Gorban other hand tweaked stab up just bit stalled way down still did four minutes Later told Ed Turner going throw away screwdriver DPR Part Two Last time talked about various DPR front ends worked time well discuss critical part making sure work No matter what front end use still must connected back timer Most systems Ive seen use solid wire running nose back pylon simplest system favored Andriukov uses piece piano wire right- angle bend back trapped behind disc timer blocked rearward movement small screw head timer faceplate timer begins turn slot disc moves over wire allowing ride up back past screw head sketch Free Flight News should explain other system uses extra wire lever timer lever extends forward aluminum block pivot lever goes through block bent down blocks foreand-aft hole block wire DPR front end extends through hole blocked timer lever timer trips fraction second after launch lever flips up allowing wire move rear prop starts turning presupposes accurate timer good start switch works time just isnt going get Thirty-two strands FAI Tan II rubber will pull model straight up very fast will pull straight down faster Make sure everything works perfectly time World Championships spotted couple other prop release systems merit some discussion Both start-onrelease systems allowing one-handed launch delay Danish flier Jens Kristiensen used lever side motor tube keep motor unwinding cable led back another lever side pylon moment launch lever would flip forward allowing lever front pivot out way type system blades have either short enough clear wing needs some system hold out far enough clear wing Im sure exact system Jens uses system have tried uses thin music wire catches hold blades back about 300 angle prop starts turning centrifugal force swings blades out running position Another interesting system uses no catches lines levers instead uses two piano wire cams carefully positioned noseblock After model wound held hand prop blades folded back underneath motor tube hand keeps turning other blade folded back over top wing release blades start turn folded position before can hit foul wing two wire cams push blades out forward position very simple am convinced one-handed launch much easier master conventional quick get left hand out way hitting blades method weve using years can put effort launch throw model 102 Model Aviation inian winder shown Morrel winder uses umbrella-type handle Built-in torque meter Text has details German start-on-release system uses wire cams nose ring DPR system uses spring-loaded wire front end through force blades flying position before contact wing block timer Lever blocks wire until 1A sec after launch large DPR timer disc file flat wire pylontapered bolt go under disc put 16 swg wire drill chuck can grind down front before use can fit prop hole Also way remove weight wing wires end cut off Sketch scale sliding latch springlike doorbolt drill chuck LII cut off very thin LIGHT spring distance must internal DPR prop assembly bend wire go outside inside fuselage l6swg brass tube 1/16 ply strip outside fuselage l6swgwrre 065 dural faceplate MUST bend ARVlTboth at45to5Ssec tapered lOBA bolt timer x slot fuselage 24 hr Araldite outside fuselage bind 16 swg brass tube solder soldered rod \ 16 swg brass tube 1/16 ply outside fuselage 16 swg wire l6swg brass tube sliding latch bind tube 1/16 ply strip kevlar thread Above drawing shows launch mode Latch held under timer disc front tapered bolt timer disc revolves 05 sec light spring pushes arm out rod can go back releasing DPR Very little load timer 0 C 0 0 -o 0 0 0 0 o - LL LL 0 4 C vertically run risk hitting blade possibly breaking blade Give DPR least start-on-release try CAD FF work Ive using both two-dimensional 3-D CAD Computer Aided Design system last year Once got used software seems much easier conventional triangle-and-T-square drafting certainly much accurate conventional drafting considerably faster same company makes software use work American Small Business Computers also markets stripped-down simplified very affordable $99 CAD system modelers ModelCAD offers advantages regular 2-D software plus couple other things just modeling called ModelCalc plug numbers latest design computer tells will fly course intended RC punched numbers typical FlC power model Randy Archer s According ModelCalc plane probably overpowered wings may have tendency rip off Im glad nobody told Randy before won second world championship row considerably use airfoils included software list includes couple dozen Benedeks though popular B-6356b RAF 32 old Babic Nordic section lots RC glider airfoils best use Ive found ModelCad drawing full-sized wing stab plans First draw outline half wing zoom add ribs spars etc make mirror image give other half wing Drawing done screen arbitrary units Normally set cursor move unit per stroke units can anything light years inches cubits whatever Since design build metric system used millimeters quickly found out drawing 400mm-long wing panel took way too strokes get around first tried using x y coordinates locate corners wing faster change cursor setting would move 10 units time Line width also adjustable draw rib locations plan set line width 16 units draw ribs print plan out full size 254 units per inch rib lines will 16mm apartjust right show slightly side tAs balsa ribs glue down Since dont have plotter use regular printer 8/2 x 11 paper program automatically tiles drawing ModelCad available American Small Business Computers Inc 327 South Mill Pryor OK 74361 Tel 918 825-4844 FFn One best free flight newsletters TNE VERSATILE EPOXY SYSTEM WEST SYSuE44 0 Sands Easily 4No Mess Metering Pumps 6Very Long Shelf Ufe 4Full Line Fillers COne Resin Four Hardeners~6 BondingCoatingFairing FilletingLaminatingRepairs Dealer & ManuFacturer Inquiries Welcome Detail Product Information Send $3 Composite Structures Technology P 0 Box 642 Dept JH Tehachapi CA 93581 Order Desk 1-800-338-1278 five minutes can upgrade stan dard Futaba Airtronics servos ball bearing servos new EMS Ball Bearing Conversion Kit New case tops accurately molded super tough glass filled fuel-proof Celcon include top quality stainless steel ball bearing servo output shaft * Stops case top and/or plastic bushing wear * Prevents output gear shaft shimmy * Reduces friction improves servo centering * Enhances performance airplanes boats & cars * Mandatory helicopter servos * Free output arm provided case top * Guaranteed against breakage year * Why pay $3995 $2995 BBC-1 Fits FUTABA S28/S 128 538/S 138 S48/S 148 Servos set 4$2595 BC-2As above set 1$695 ~C3Fits AIRTRONICS 94102 Servos set 4$2595 2-4As above set 1$695 nnC-5Ball Bearing Only JR 501 507 RCDAPOLLO 05 10 FOCUS HS300 HS500 ACE 330342 342HS TOWER IS-Si Servos set 4$1995 Add $300 shipping Handling orders /14 692-1393 Info Only california Realdente Add 775% Salea Tax 800 845-8978 Orders Only VISA MASTERCARD Accepted free flight fun Peck-Polymers planes plans CO2 engines US Czechoslovakia tremendous assortment types sizes props paper tools next vlission YortJa Linda caper2 WVA catalog kits accessories engines nine-cylinder radial engine 4 endless ideas available $400 PeckPolymers stop shopping rubber power COa needs P 0 Box 710399MASANTEE CA a2a72a3aa USA1619 481818FAX 619 4461833 October 1994 105 Sukhoi Su-2 6 RIG Sport Scale 40 Size ARF Aembatic Airplane MADE IN THE USA NEW auso t.nannels Wing AitFuselage Balsa plywood Length4 t weight vacuum WeighL52 lbs ing parts Engine40 402 Struke WingFoam Cores 48.604Stroke Allhmdware&cowL High Quality Coveting Aluminum landing gear fuel resident printing canopy included S00SS NS PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSTRY CA 91745 818 9614616 8183309510 818 3309351 FA~ world British monthly Free Flight news typical issue will contain couple three-views several airfoil sections useful text pieces aspects competition free flight including Indoor Contest results want ads technical articles round out coverage Since editors Ian Kaynes actively involved Free Flight subcommittee international aeromodeling organization ClAM FFn often first place hear about FAI rules changes years subscription 12 issues $24 year surface mail $34 air mail address FFn 7 Ashley Road Farnborough Hants England GUl4 7EZ Payment should payable through British bank N No long can remember civilian aircraft registered United States have carried letter N preceding aircraft number Models flown international events also carry letter N followed fliers AMA number never did know what N stood few other county designations made some sense like F France G Great Britain Others based name country its own language rather English name Examples include D Deutschland Germany H Helvetia Switzerland CCCP USSR Some designations made no sense whatsoever including OY Denmark 4X Israel thats changing According article FFn FAI has voted adopt abbreviations used International Olympic Committee new designations typically three letters long fairly obvious USA United States CAN Canada ISR Israel GER Germany new rule will go effect next Sporting Code due out January 1997 Winding Up Sal Fruciano loaned Ukrainian winders made Yuri Blachevich As can see photos unit quite bit different Morrel winder US modelers use Ukrainian winder light 493g very clean appearance gear ratio four keeping track turns easy built-in counter winder shown comes built-in torque meter goes 0 9 have no idea what units represents neither does Sal business end features 8mmdiameter hole spring-loaded release pin perfect fit Ukrainian front ends winding prop attached However bit small detachable winding hooks normally use country umbrella-type handle surprisingly comfortable use although its inch ar long Watching fliers former Soviet Union action noticed hook handle high up left armalmost armpitand really pull saw Andriukov after contest out pool noticed red welts left arm winding found winder very smooth quiet virtually no noise backlash quality piece equipment Sal has limited number winders available model torque meter goes $160 plain model torque meter $110 Write Sal Fruciano Starline 6146 East Cactus Wren Rd Scottsdale AZ 85253 Tel 602 948-5798 45 Join Giants Help Promote HI GI- - Non-CompetitiveI 7J asssetoeying Large RIC Air Craft AA membership includes quarterly magazine High Flight I MEMBERSHIP APPLICAllON NEW l RENEWAL Date19I Yearly Dues$1500 USA $2000 US Canada & Mexico $3000 US ElsewhereI Make CHECK MONEY ORDER Payable INTERNATiONAL MINIATURE AIRCRAFT ASSOCIATION INC I Name __________________________________________ Phone ____________________________ I Street ______________________________________ P0 Box/Route Box ________________ City ______________________State/Province ________________Zip ________________ I IMAA __________AMA Number ___________MAAC __________Chapter __________ L TO IMAA Secretary DON E VINEYARD e 2055 Hilldale Road a KS 67401 106 Model Aviation light Training Beginner advanced tailored individual long-time modeler full size airplane flight instruc tor will maJe progress fun easy during week stay beautiful far western North Carolina Write call information RC Fight Training LR289I 7043894968