Radio Control Sport & Aerobatics Ron Van Putte WINDS ALOFT long time ago men tioned effects wind flight airplaneand resulting controver sy took interminable time die out Consequently Ive hesitated say much subject since seems bring out worst weirdos both sides issue write letters lots exclamation points invar iably follow set pattern establish credentials state position men tion irrefutable supporters posi tion challenge anyone disagree Theres usually grain truth positions often stretched too far Beginnersand experienced modelershave tough time deciding story true its truth leaves off Besides chal lenged resulting tirade will sure spoil anyones afternoon Anyway sworn off discussing effects wind airplanes until day recently beginner told airplane climbed went upwind dove went downwind men tioned explained him local experts Thats took grit teeth set him straight said would good idea put explanation column course didnt know about old controversy subject new him So against better judgement will explain appears airplane climbs going upwind dives going downwind Before getting too far what am going discuss effects steady wind effects gusts included assumed uniform air mass moving across ground wind basic situation permits direct application Newtons laws motion apply either fixed frame reference frame reference moving constant velocity Earth really isnt fixed frame reference purposes its close enough Similarly wind isnt always moving constant veloci ty its usually close enough con sider frame reference moving wind adequate apply New tons laws directly resulting applica tion Newtons laws steady-wind situation will yield conclusion airplane doesnt know wind blow ing ThereIve done again Scott Stauffer Abbottatown PA must glutton punishment wouldnt have attempted such elaborate paint scheme Dirty Birdy 60 its really knockout color Other features plane Supertigre G6OBH OPS pipe Rhom retracts its first Pattern plane 42 LArr4ei Aiei%r Don Taylor has anew original-design Pattern ship calisthe Peregrine 1 photoabove shows Supertigre 40-powered competition ship trio right Inciudes first prototype top 40-powered plane bottom 08 28-powered version uses learn AMA PAl patterns claims great slow-flight characteristics hesitation rolls 15 mph very precise snap maneuvers Note slightly-swept outer panel leading edges Want plans Write Taylor Enterprises 1795 Jamie Dr Yuba City CA95991 monster has aroused can almost hear furious pen-scratching across country mailman will never forgive So have following far youre probably wondering Ill get upwind-climb downwind-dive problem Soon whole situation hinges trim airplanes Most people trim airplane climb slightly beginners use Up trim experienced fliers because dont like see airplane heading ground Because way eyes work airplane travelling horizontally will appear diving approaches horizon problem Pattern fliers judges alike fact Novice flier will often downgraded Straight Flight Out inexperi enced judge though airplane maintains constant altitude because ap pears diving Consequently usually trim airplane climb slightly keep looking like its diving approaches horizon airplane climbs cairn air will same thing steady wind airplane climbs going upwind because its trimmed way looks like its climbing steeper angle because wind reduces ground speed affecting vertical Continued page 142 0 w uJ Li cn 4cr w 0 w w 1o UCj oc w 0 w w I-a LJt 4-i cr4 w AIRCRAFT HORIZONTAL SPEED IHEADWIND FIGURE 1 FIGURE 2 AIRCRAFT HORIZONTAL SPEED FIGURE 3 TAILWINDWIND SPEED2 RCRAFTHO RIZONTALSP NI-STARTER revoluti model engines used boats cars airplanes NI STARTERITMI uses HeadlockiTMI adapter locks onto glow plugs start engine yits pocket comes CItO charger has LED lights up charging Rechargeable hundreds times gives over 50 consecutive starts recharging Acailable charger Send ad along prepayment receine tree shipping handling NI-STARTER$2495 charger Itt OV 22tV t2V fast chargert NI-STARTER$1 595 charger Chargers$1295 charger lttOV22tVorl2Vfastchargerl PLEASE SPECIFY WHICH CHARGER WHEN OROERINGf L tucked away neatly aircraft also fits nicely some popular bat tery boxes available Ace R/G Dunhams R&R PC board S2B2 available $750 An assembled unit less switch wiring $4400 Order direct Jomar Products 2028 Knightsbridge Dr Cincinnati OH 45244 Assembled units complete wir ing switch connectors match specific radio system available EMS 6175 Palo Alto Dr Anaheim CA 92807 Write pricing Parts List Rl 100K R2 R3 R4 R7 R8470K R522K R6330 ohm R91OK RlO130K Rl 136K-39K 47K five-cell packs Dl through D51N5817 Ql Q2 Q32N3904 IClCD4584 74C14 1C2ICL8212CPA Cl001 mono C2 C3 C433 mf dipped tantalum 15-volt higher CS C6047 mono Miscellaneous PC board solder wire switch Y-in aluminum pop rivets con$2495 Charger nectors suit radio system LED indicator RC AerobaticslVan Putt Continued page 43 speed Take look Figures 1 2 angle between horizon track airplane relative ground gets larger wind blows stronger So does airplane look like its diving going downwind Its actual ly climbing climb angle stretched out wind see Figure 3 because way eyes work looks like its diving course stronger wind blowing lower climb angle airplane will look like its diving approaches horizon Now know Im going get letters decide write subject please dont assemble tirade about laws conservation kinetic energy conservation momentum high school physics Please stick principles mechanics relative frame reference moving constant velocity Thanks suddenly occurred month ago contest season upon us needed get new Pattern airplane pre pared Since prefabricated allbalsa-fuselage Curare sitting corner decided finish rather start scratch fiberglass-fuselage Phoenix 8 Boy mistake forgot ten much involved finishing balsa fuselage must eight 10 years since did things like putting wing fillets fuselagethere must several mil lion things Id rather Also way up list least-favorite things fiberglassing balsa fuse lage What would very useful some good techniques both jobs problems installing fillets endless Getting fillet material ac cept good contour fast shifting during dry/cure important So us ing material sands well has enough strength manage stress flight everyday rigors handling less importance day epoxy other low-shrink paints surface paint will stick well pull loose during drying Whos got some good ideas fillets absence good technique install ounce per square yard fiber glass cloth fuselage plan brush Dave Brown Mix-A-Matic epoxy through cloth use modified toilet paper roll blot up excess epoxy Since Ive used technique adhere lightweight glass cloth wing skins dont know will work fuselage Does anyone have good ideas alternate techniques received interesting letter Dr John Kallend professor engi neering Illinois university teaches crystallography whatever Anyway also consultant engi neering software capacity has developed RC flight simulator works Apple LIe II puters three-dimensional graphic animation flight RC airplane Control elevator ailerons rudder throttle possible using proportional joysticks See Product Review development March 1984 issue page 91 Dr Kallend claims novice can learn basic control functions over come orientation problems Experienced fliers could practice advanced maneuvers both cases no danger model heard about Dave Brown doing im pressive displays Toledo Conference April Dr Kallend claims Hanno Prettner did too RC Flight Simulator available diskette Dave Brown Products 4560 Layhigh Rd Hamilton OH 45013 have no idea much costs Dave would probably happy discuss little item Sounds like fun Continued page 144 142 Model Aviation MFG OF NI-STARTER 12421 RANSOM DRIVE GLENN DALE MD 20769301464-2260 AT-6 SNI This one flies good looks N ngine 63375 Wingspan 8 lbs Complete List Price $28500 Factory Direct $22800 Michigan residents add 4% sales tax rIU Great Lakes Model Company BmchweWs4cmPO Box 308 Tawas City MI 48763517 362-6078 2 Al Major Components Molded Urethane Foam NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 42, 43, 142, 144
Radio Control Sport & Aerobatics Ron Van Putte WINDS ALOFT long time ago men tioned effects wind flight airplaneand resulting controver sy took interminable time die out Consequently Ive hesitated say much subject since seems bring out worst weirdos both sides issue write letters lots exclamation points invar iably follow set pattern establish credentials state position men tion irrefutable supporters posi tion challenge anyone disagree Theres usually grain truth positions often stretched too far Beginnersand experienced modelershave tough time deciding story true its truth leaves off Besides chal lenged resulting tirade will sure spoil anyones afternoon Anyway sworn off discussing effects wind airplanes until day recently beginner told airplane climbed went upwind dove went downwind men tioned explained him local experts Thats took grit teeth set him straight said would good idea put explanation column course didnt know about old controversy subject new him So against better judgement will explain appears airplane climbs going upwind dives going downwind Before getting too far what am going discuss effects steady wind effects gusts included assumed uniform air mass moving across ground wind basic situation permits direct application Newtons laws motion apply either fixed frame reference frame reference moving constant velocity Earth really isnt fixed frame reference purposes its close enough Similarly wind isnt always moving constant veloci ty its usually close enough con sider frame reference moving wind adequate apply New tons laws directly resulting applica tion Newtons laws steady-wind situation will yield conclusion airplane doesnt know wind blow ing ThereIve done again Scott Stauffer Abbottatown PA must glutton punishment wouldnt have attempted such elaborate paint scheme Dirty Birdy 60 its really knockout color Other features plane Supertigre G6OBH OPS pipe Rhom retracts its first Pattern plane 42 LArr4ei Aiei%r Don Taylor has anew original-design Pattern ship calisthe Peregrine 1 photoabove shows Supertigre 40-powered competition ship trio right Inciudes first prototype top 40-powered plane bottom 08 28-powered version uses learn AMA PAl patterns claims great slow-flight characteristics hesitation rolls 15 mph very precise snap maneuvers Note slightly-swept outer panel leading edges Want plans Write Taylor Enterprises 1795 Jamie Dr Yuba City CA95991 monster has aroused can almost hear furious pen-scratching across country mailman will never forgive So have following far youre probably wondering Ill get upwind-climb downwind-dive problem Soon whole situation hinges trim airplanes Most people trim airplane climb slightly beginners use Up trim experienced fliers because dont like see airplane heading ground Because way eyes work airplane travelling horizontally will appear diving approaches horizon problem Pattern fliers judges alike fact Novice flier will often downgraded Straight Flight Out inexperi enced judge though airplane maintains constant altitude because ap pears diving Consequently usually trim airplane climb slightly keep looking like its diving approaches horizon airplane climbs cairn air will same thing steady wind airplane climbs going upwind because its trimmed way looks like its climbing steeper angle because wind reduces ground speed affecting vertical Continued page 142 0 w uJ Li cn 4cr w 0 w w 1o UCj oc w 0 w w I-a LJt 4-i cr4 w AIRCRAFT HORIZONTAL SPEED IHEADWIND FIGURE 1 FIGURE 2 AIRCRAFT HORIZONTAL SPEED FIGURE 3 TAILWINDWIND SPEED2 RCRAFTHO RIZONTALSP NI-STARTER revoluti model engines used boats cars airplanes NI STARTERITMI uses HeadlockiTMI adapter locks onto glow plugs start engine yits pocket comes CItO charger has LED lights up charging Rechargeable hundreds times gives over 50 consecutive starts recharging Acailable charger Send ad along prepayment receine tree shipping handling NI-STARTER$2495 charger Itt OV 22tV t2V fast chargert NI-STARTER$1 595 charger Chargers$1295 charger lttOV22tVorl2Vfastchargerl PLEASE SPECIFY WHICH CHARGER WHEN OROERINGf L tucked away neatly aircraft also fits nicely some popular bat tery boxes available Ace R/G Dunhams R&R PC board S2B2 available $750 An assembled unit less switch wiring $4400 Order direct Jomar Products 2028 Knightsbridge Dr Cincinnati OH 45244 Assembled units complete wir ing switch connectors match specific radio system available EMS 6175 Palo Alto Dr Anaheim CA 92807 Write pricing Parts List Rl 100K R2 R3 R4 R7 R8470K R522K R6330 ohm R91OK RlO130K Rl 136K-39K 47K five-cell packs Dl through D51N5817 Ql Q2 Q32N3904 IClCD4584 74C14 1C2ICL8212CPA Cl001 mono C2 C3 C433 mf dipped tantalum 15-volt higher CS C6047 mono Miscellaneous PC board solder wire switch Y-in aluminum pop rivets con$2495 Charger nectors suit radio system LED indicator RC AerobaticslVan Putt Continued page 43 speed Take look Figures 1 2 angle between horizon track airplane relative ground gets larger wind blows stronger So does airplane look like its diving going downwind Its actual ly climbing climb angle stretched out wind see Figure 3 because way eyes work looks like its diving course stronger wind blowing lower climb angle airplane will look like its diving approaches horizon Now know Im going get letters decide write subject please dont assemble tirade about laws conservation kinetic energy conservation momentum high school physics Please stick principles mechanics relative frame reference moving constant velocity Thanks suddenly occurred month ago contest season upon us needed get new Pattern airplane pre pared Since prefabricated allbalsa-fuselage Curare sitting corner decided finish rather start scratch fiberglass-fuselage Phoenix 8 Boy mistake forgot ten much involved finishing balsa fuselage must eight 10 years since did things like putting wing fillets fuselagethere must several mil lion things Id rather Also way up list least-favorite things fiberglassing balsa fuse lage What would very useful some good techniques both jobs problems installing fillets endless Getting fillet material ac cept good contour fast shifting during dry/cure important So us ing material sands well has enough strength manage stress flight everyday rigors handling less importance day epoxy other low-shrink paints surface paint will stick well pull loose during drying Whos got some good ideas fillets absence good technique install ounce per square yard fiber glass cloth fuselage plan brush Dave Brown Mix-A-Matic epoxy through cloth use modified toilet paper roll blot up excess epoxy Since Ive used technique adhere lightweight glass cloth wing skins dont know will work fuselage Does anyone have good ideas alternate techniques received interesting letter Dr John Kallend professor engi neering Illinois university teaches crystallography whatever Anyway also consultant engi neering software capacity has developed RC flight simulator works Apple LIe II puters three-dimensional graphic animation flight RC airplane Control elevator ailerons rudder throttle possible using proportional joysticks See Product Review development March 1984 issue page 91 Dr Kallend claims novice can learn basic control functions over come orientation problems Experienced fliers could practice advanced maneuvers both cases no danger model heard about Dave Brown doing im pressive displays Toledo Conference April Dr Kallend claims Hanno Prettner did too RC Flight Simulator available diskette Dave Brown Products 4560 Layhigh Rd Hamilton OH 45013 have no idea much costs Dave would probably happy discuss little item Sounds like fun Continued page 144 142 Model Aviation MFG OF NI-STARTER 12421 RANSOM DRIVE GLENN DALE MD 20769301464-2260 AT-6 SNI This one flies good looks N ngine 63375 Wingspan 8 lbs Complete List Price $28500 Factory Direct $22800 Michigan residents add 4% sales tax rIU Great Lakes Model Company BmchweWs4cmPO Box 308 Tawas City MI 48763517 362-6078 2 Al Major Components Molded Urethane Foam NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 42, 43, 142, 144
Radio Control Sport & Aerobatics Ron Van Putte WINDS ALOFT long time ago men tioned effects wind flight airplaneand resulting controver sy took interminable time die out Consequently Ive hesitated say much subject since seems bring out worst weirdos both sides issue write letters lots exclamation points invar iably follow set pattern establish credentials state position men tion irrefutable supporters posi tion challenge anyone disagree Theres usually grain truth positions often stretched too far Beginnersand experienced modelershave tough time deciding story true its truth leaves off Besides chal lenged resulting tirade will sure spoil anyones afternoon Anyway sworn off discussing effects wind airplanes until day recently beginner told airplane climbed went upwind dove went downwind men tioned explained him local experts Thats took grit teeth set him straight said would good idea put explanation column course didnt know about old controversy subject new him So against better judgement will explain appears airplane climbs going upwind dives going downwind Before getting too far what am going discuss effects steady wind effects gusts included assumed uniform air mass moving across ground wind basic situation permits direct application Newtons laws motion apply either fixed frame reference frame reference moving constant velocity Earth really isnt fixed frame reference purposes its close enough Similarly wind isnt always moving constant veloci ty its usually close enough con sider frame reference moving wind adequate apply New tons laws directly resulting applica tion Newtons laws steady-wind situation will yield conclusion airplane doesnt know wind blow ing ThereIve done again Scott Stauffer Abbottatown PA must glutton punishment wouldnt have attempted such elaborate paint scheme Dirty Birdy 60 its really knockout color Other features plane Supertigre G6OBH OPS pipe Rhom retracts its first Pattern plane 42 LArr4ei Aiei%r Don Taylor has anew original-design Pattern ship calisthe Peregrine 1 photoabove shows Supertigre 40-powered competition ship trio right Inciudes first prototype top 40-powered plane bottom 08 28-powered version uses learn AMA PAl patterns claims great slow-flight characteristics hesitation rolls 15 mph very precise snap maneuvers Note slightly-swept outer panel leading edges Want plans Write Taylor Enterprises 1795 Jamie Dr Yuba City CA95991 monster has aroused can almost hear furious pen-scratching across country mailman will never forgive So have following far youre probably wondering Ill get upwind-climb downwind-dive problem Soon whole situation hinges trim airplanes Most people trim airplane climb slightly beginners use Up trim experienced fliers because dont like see airplane heading ground Because way eyes work airplane travelling horizontally will appear diving approaches horizon problem Pattern fliers judges alike fact Novice flier will often downgraded Straight Flight Out inexperi enced judge though airplane maintains constant altitude because ap pears diving Consequently usually trim airplane climb slightly keep looking like its diving approaches horizon airplane climbs cairn air will same thing steady wind airplane climbs going upwind because its trimmed way looks like its climbing steeper angle because wind reduces ground speed affecting vertical Continued page 142 0 w uJ Li cn 4cr w 0 w w 1o UCj oc w 0 w w I-a LJt 4-i cr4 w AIRCRAFT HORIZONTAL SPEED IHEADWIND FIGURE 1 FIGURE 2 AIRCRAFT HORIZONTAL SPEED FIGURE 3 TAILWINDWIND SPEED2 RCRAFTHO RIZONTALSP NI-STARTER revoluti model engines used boats cars airplanes NI STARTERITMI uses HeadlockiTMI adapter locks onto glow plugs start engine yits pocket comes CItO charger has LED lights up charging Rechargeable hundreds times gives over 50 consecutive starts recharging Acailable charger Send ad along prepayment receine tree shipping handling NI-STARTER$2495 charger Itt OV 22tV t2V fast chargert NI-STARTER$1 595 charger Chargers$1295 charger lttOV22tVorl2Vfastchargerl PLEASE SPECIFY WHICH CHARGER WHEN OROERINGf L tucked away neatly aircraft also fits nicely some popular bat tery boxes available Ace R/G Dunhams R&R PC board S2B2 available $750 An assembled unit less switch wiring $4400 Order direct Jomar Products 2028 Knightsbridge Dr Cincinnati OH 45244 Assembled units complete wir ing switch connectors match specific radio system available EMS 6175 Palo Alto Dr Anaheim CA 92807 Write pricing Parts List Rl 100K R2 R3 R4 R7 R8470K R522K R6330 ohm R91OK RlO130K Rl 136K-39K 47K five-cell packs Dl through D51N5817 Ql Q2 Q32N3904 IClCD4584 74C14 1C2ICL8212CPA Cl001 mono C2 C3 C433 mf dipped tantalum 15-volt higher CS C6047 mono Miscellaneous PC board solder wire switch Y-in aluminum pop rivets con$2495 Charger nectors suit radio system LED indicator RC AerobaticslVan Putt Continued page 43 speed Take look Figures 1 2 angle between horizon track airplane relative ground gets larger wind blows stronger So does airplane look like its diving going downwind Its actual ly climbing climb angle stretched out wind see Figure 3 because way eyes work looks like its diving course stronger wind blowing lower climb angle airplane will look like its diving approaches horizon Now know Im going get letters decide write subject please dont assemble tirade about laws conservation kinetic energy conservation momentum high school physics Please stick principles mechanics relative frame reference moving constant velocity Thanks suddenly occurred month ago contest season upon us needed get new Pattern airplane pre pared Since prefabricated allbalsa-fuselage Curare sitting corner decided finish rather start scratch fiberglass-fuselage Phoenix 8 Boy mistake forgot ten much involved finishing balsa fuselage must eight 10 years since did things like putting wing fillets fuselagethere must several mil lion things Id rather Also way up list least-favorite things fiberglassing balsa fuse lage What would very useful some good techniques both jobs problems installing fillets endless Getting fillet material ac cept good contour fast shifting during dry/cure important So us ing material sands well has enough strength manage stress flight everyday rigors handling less importance day epoxy other low-shrink paints surface paint will stick well pull loose during drying Whos got some good ideas fillets absence good technique install ounce per square yard fiber glass cloth fuselage plan brush Dave Brown Mix-A-Matic epoxy through cloth use modified toilet paper roll blot up excess epoxy Since Ive used technique adhere lightweight glass cloth wing skins dont know will work fuselage Does anyone have good ideas alternate techniques received interesting letter Dr John Kallend professor engi neering Illinois university teaches crystallography whatever Anyway also consultant engi neering software capacity has developed RC flight simulator works Apple LIe II puters three-dimensional graphic animation flight RC airplane Control elevator ailerons rudder throttle possible using proportional joysticks See Product Review development March 1984 issue page 91 Dr Kallend claims novice can learn basic control functions over come orientation problems Experienced fliers could practice advanced maneuvers both cases no danger model heard about Dave Brown doing im pressive displays Toledo Conference April Dr Kallend claims Hanno Prettner did too RC Flight Simulator available diskette Dave Brown Products 4560 Layhigh Rd Hamilton OH 45013 have no idea much costs Dave would probably happy discuss little item Sounds like fun Continued page 144 142 Model Aviation MFG OF NI-STARTER 12421 RANSOM DRIVE GLENN DALE MD 20769301464-2260 AT-6 SNI This one flies good looks N ngine 63375 Wingspan 8 lbs Complete List Price $28500 Factory Direct $22800 Michigan residents add 4% sales tax rIU Great Lakes Model Company BmchweWs4cmPO Box 308 Tawas City MI 48763517 362-6078 2 Al Major Components Molded Urethane Foam NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 42, 43, 142, 144
Radio Control Sport & Aerobatics Ron Van Putte WINDS ALOFT long time ago men tioned effects wind flight airplaneand resulting controver sy took interminable time die out Consequently Ive hesitated say much subject since seems bring out worst weirdos both sides issue write letters lots exclamation points invar iably follow set pattern establish credentials state position men tion irrefutable supporters posi tion challenge anyone disagree Theres usually grain truth positions often stretched too far Beginnersand experienced modelershave tough time deciding story true its truth leaves off Besides chal lenged resulting tirade will sure spoil anyones afternoon Anyway sworn off discussing effects wind airplanes until day recently beginner told airplane climbed went upwind dove went downwind men tioned explained him local experts Thats took grit teeth set him straight said would good idea put explanation column course didnt know about old controversy subject new him So against better judgement will explain appears airplane climbs going upwind dives going downwind Before getting too far what am going discuss effects steady wind effects gusts included assumed uniform air mass moving across ground wind basic situation permits direct application Newtons laws motion apply either fixed frame reference frame reference moving constant velocity Earth really isnt fixed frame reference purposes its close enough Similarly wind isnt always moving constant veloci ty its usually close enough con sider frame reference moving wind adequate apply New tons laws directly resulting applica tion Newtons laws steady-wind situation will yield conclusion airplane doesnt know wind blow ing ThereIve done again Scott Stauffer Abbottatown PA must glutton punishment wouldnt have attempted such elaborate paint scheme Dirty Birdy 60 its really knockout color Other features plane Supertigre G6OBH OPS pipe Rhom retracts its first Pattern plane 42 LArr4ei Aiei%r Don Taylor has anew original-design Pattern ship calisthe Peregrine 1 photoabove shows Supertigre 40-powered competition ship trio right Inciudes first prototype top 40-powered plane bottom 08 28-powered version uses learn AMA PAl patterns claims great slow-flight characteristics hesitation rolls 15 mph very precise snap maneuvers Note slightly-swept outer panel leading edges Want plans Write Taylor Enterprises 1795 Jamie Dr Yuba City CA95991 monster has aroused can almost hear furious pen-scratching across country mailman will never forgive So have following far youre probably wondering Ill get upwind-climb downwind-dive problem Soon whole situation hinges trim airplanes Most people trim airplane climb slightly beginners use Up trim experienced fliers because dont like see airplane heading ground Because way eyes work airplane travelling horizontally will appear diving approaches horizon problem Pattern fliers judges alike fact Novice flier will often downgraded Straight Flight Out inexperi enced judge though airplane maintains constant altitude because ap pears diving Consequently usually trim airplane climb slightly keep looking like its diving approaches horizon airplane climbs cairn air will same thing steady wind airplane climbs going upwind because its trimmed way looks like its climbing steeper angle because wind reduces ground speed affecting vertical Continued page 142 0 w uJ Li cn 4cr w 0 w w 1o UCj oc w 0 w w I-a LJt 4-i cr4 w AIRCRAFT HORIZONTAL SPEED IHEADWIND FIGURE 1 FIGURE 2 AIRCRAFT HORIZONTAL SPEED FIGURE 3 TAILWINDWIND SPEED2 RCRAFTHO RIZONTALSP NI-STARTER revoluti model engines used boats cars airplanes NI STARTERITMI uses HeadlockiTMI adapter locks onto glow plugs start engine yits pocket comes CItO charger has LED lights up charging Rechargeable hundreds times gives over 50 consecutive starts recharging Acailable charger Send ad along prepayment receine tree shipping handling NI-STARTER$2495 charger Itt OV 22tV t2V fast chargert NI-STARTER$1 595 charger Chargers$1295 charger lttOV22tVorl2Vfastchargerl PLEASE SPECIFY WHICH CHARGER WHEN OROERINGf L tucked away neatly aircraft also fits nicely some popular bat tery boxes available Ace R/G Dunhams R&R PC board S2B2 available $750 An assembled unit less switch wiring $4400 Order direct Jomar Products 2028 Knightsbridge Dr Cincinnati OH 45244 Assembled units complete wir ing switch connectors match specific radio system available EMS 6175 Palo Alto Dr Anaheim CA 92807 Write pricing Parts List Rl 100K R2 R3 R4 R7 R8470K R522K R6330 ohm R91OK RlO130K Rl 136K-39K 47K five-cell packs Dl through D51N5817 Ql Q2 Q32N3904 IClCD4584 74C14 1C2ICL8212CPA Cl001 mono C2 C3 C433 mf dipped tantalum 15-volt higher CS C6047 mono Miscellaneous PC board solder wire switch Y-in aluminum pop rivets con$2495 Charger nectors suit radio system LED indicator RC AerobaticslVan Putt Continued page 43 speed Take look Figures 1 2 angle between horizon track airplane relative ground gets larger wind blows stronger So does airplane look like its diving going downwind Its actual ly climbing climb angle stretched out wind see Figure 3 because way eyes work looks like its diving course stronger wind blowing lower climb angle airplane will look like its diving approaches horizon Now know Im going get letters decide write subject please dont assemble tirade about laws conservation kinetic energy conservation momentum high school physics Please stick principles mechanics relative frame reference moving constant velocity Thanks suddenly occurred month ago contest season upon us needed get new Pattern airplane pre pared Since prefabricated allbalsa-fuselage Curare sitting corner decided finish rather start scratch fiberglass-fuselage Phoenix 8 Boy mistake forgot ten much involved finishing balsa fuselage must eight 10 years since did things like putting wing fillets fuselagethere must several mil lion things Id rather Also way up list least-favorite things fiberglassing balsa fuse lage What would very useful some good techniques both jobs problems installing fillets endless Getting fillet material ac cept good contour fast shifting during dry/cure important So us ing material sands well has enough strength manage stress flight everyday rigors handling less importance day epoxy other low-shrink paints surface paint will stick well pull loose during drying Whos got some good ideas fillets absence good technique install ounce per square yard fiber glass cloth fuselage plan brush Dave Brown Mix-A-Matic epoxy through cloth use modified toilet paper roll blot up excess epoxy Since Ive used technique adhere lightweight glass cloth wing skins dont know will work fuselage Does anyone have good ideas alternate techniques received interesting letter Dr John Kallend professor engi neering Illinois university teaches crystallography whatever Anyway also consultant engi neering software capacity has developed RC flight simulator works Apple LIe II puters three-dimensional graphic animation flight RC airplane Control elevator ailerons rudder throttle possible using proportional joysticks See Product Review development March 1984 issue page 91 Dr Kallend claims novice can learn basic control functions over come orientation problems Experienced fliers could practice advanced maneuvers both cases no danger model heard about Dave Brown doing im pressive displays Toledo Conference April Dr Kallend claims Hanno Prettner did too RC Flight Simulator available diskette Dave Brown Products 4560 Layhigh Rd Hamilton OH 45013 have no idea much costs Dave would probably happy discuss little item Sounds like fun Continued page 144 142 Model Aviation MFG OF NI-STARTER 12421 RANSOM DRIVE GLENN DALE MD 20769301464-2260 AT-6 SNI This one flies good looks N ngine 63375 Wingspan 8 lbs Complete List Price $28500 Factory Direct $22800 Michigan residents add 4% sales tax rIU Great Lakes Model Company BmchweWs4cmPO Box 308 Tawas City MI 48763517 362-6078 2 Al Major Components Molded Urethane Foam NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation