FREE FLIGHT DURATION U 1IK-UCAMPBELL KITS Lee Campbell sent along two new hA kits review Frank Garcher-designed Fortastrop Nostalgia vaguely remember Midwest kit Fortastrop mid 1950s cant recall ever seeing built probably designs left behind horsepower square-inch race started Cox Holland engines Fortastrop nice-looking though rather typical 247-squareinch model tapered tips medium-height pylon 33% stab especially like diagonal rib construction stab rudder firmly mounted fuselage Construction simple straightforward About unusual feature built-up sheeted pylon Price kit $2998 other new kit Lee half version Dave Platts Slow Worm larger version Slow Worm has Campbell lineup several years smaller version 300 square inches should work well Tee Dee lighter Russian 12A engines As would expect Dave transplanted Englishman living florida Slow Worm uses lot typical British Open Power model features pylon fairly high though high George Fullers Dixielander rudder back shoald behind stab firmly mounted fuselage wing construction conventional straight ribs single main spar bottom three small spars top Its probably best use tissue supplied kit rather opt plastic films Tissue will give wing extra torsional strength needs stab uses full-depth spar diagonal ribs aft should help provide some torsional rigidity fuselage construction looks stiff full-width diagonal formers way rear Slow Worm 300 sells $3498 can order direct Campbells Custom Kits 4402 Weddel Dearborn Heights MI 48125 May1995 109 Velcro straps hold heater blanket place Jens Kristensens Fl B Sensor heater blanket cycles unit on/off Cameron Ackerly Tony Mathews adjust rubber heater Camerons Wakefield Note 12-volt battery ground Jens uses plastic tackle box hold battery Cut-out lid next handle allows access control box Vladimir Feodorov Moscow gets ready load 36 strands Ia Tan II Fl B last World Championships best features Slow Worm kit Dave Platts very complete set instructions consist four singlespaced 81/2 X 11 sheets Construction takes up little first sheet rest devoted adjustments test flying best instructions trimming have ever seen kit Dave Plan commended Much what Dave discusses applies just about type non-autosurface model bears repeating Rudder Most effective during second half power run say 3-second point As speed increases effect increases Small wedges used power adjustment have little no effect glide Wing Warp Similar rudder effectiveness rises extra speed provides roll couple yaw Slight effect glide What little makes model glide toward washin typical pylon models including Slow-Worm means right what want Side ThrustlDownthrust Used correct direction during first 2-3 seconds power run Effect diminishes during acceleration becomes zero full speed Incidentally effectiveness thrustline adjustments nowhere near great power ships rubber-powered jobs Slow-Worm Ive ever seen has needed degree two left thrust downthrust seems have strange undesirable effect producing nose-up lump engine stops Therefore avoid possible Tail Incidence Positive negative will influence both power glide during power run speed greater Tail Tilt Controls size glide circlemore tilt smaller circle model turns toward high side stab Little no effect under power because tilt works under high-lift conditions During power run angle attack thus lift stab minimum CU Shift Very critical adjustment affecting both power glide Change imperative Most kit plan models have optimum CG position marked will fly well trim Looping sign too-forward CC sign too-aft CC model slow no recovery dive point motor [sic] cut during glide very basic concept some adjustments effective high speeds others effective low speeds allows us fly free radio make adjustments during flight Simple still amazing stop think about Rubber Ramblings seems quite few people still trying figure out FAI Tan II rubber though has out couple years Perhaps some due time takes folks use up stock old Tan real get hang newer Tan II some must Tan II lot different other rubber weve using last dozen years FAI Gray Tan mostly Tan II has lot stretchsomething around 9 1 versus about 75 older stuff Surprisingly has very high energy storage approaching 4000 footpounds per pounda good 20% better old rubber high-end torque lower less dramatic spike torque curve differences stretch torque curve what cause some problems switching over Tan Tan II simply made up new motors same number strands before could pack lot turns burst would rather anemic cure simple just increase number strands shorten overall motor length example went 26 strands Tan about 17 inches long 30 strands Tan II about 15 inches long Wakefield motors Turns went up slightly about 400 around 420 new rubber burst about same cruise much better course Wakefield well Coupe P-30 motor weight fixed motor has shortened number strands increased Mulvihill Free Flight Scale shorter Tan II motor would reduce amount slack eliminate some CC shift toolong motor Since good stock Tan rubber have using testing figure model can handle higher initial torque rapid falloff Tan rubber will behave just fine flatter torque curve Tan II last Finals made up Tan II motors dry weight 39 grams instead usual 385 grams After lubing motors coming out just bit heavy wiped off some lube switched 110 Model Aviation orov gives model hard nearly vertical heave After about Vladimir Feodorov packs turns Note third person bracing 1/2 second prop will start model will climb away foot holder Prop guard protects blades number 8 rubber bands dental bands two make-up bands saved enough weight motors pass processing did look dry During contest didnt blow motor least five six broken strands after flight motor counted ten breaks motors course used flight people think fly rubber models save money fuel best guess motors dry breaking strands readily same dryness kept broken strands sliding loose letting whole motor go Any other explanations last few years have using Sonof-a-Gun lube mainly because easy use doesnt splatter around like glycerin green soap also some problems some commercial rubber lubricants corroding aluminum fittings motor tube nose ring literally eaten two have problems using Son-of-a-Gun time being Im going cut down dry motor weight bit try use some lube what kind dont know traditionalists out keep suggesting glycerin green soap seems new found rubber lube turning up month time can get automotive store wherever theres new lube month out latest recommendation Ed Williamson Turtle Wax Protectant 2001 Its similar Son-of-a-Gun Ed says seems slicker Both products automotive vinyl cleaners best method Ive tried lubing motors get one-gallon plastic freezer bag jam bunch motors squirt lot Son-of-a-Gun should puddle liquid bottom bag seal up gently knead distribute lube Allow marinade couple days kneading occasionally Ed goes step further throwing bag trunk car leaving sun few days sounds bit bizarre dig out article heat treating rubber RW New 1989 Free Flight Forum Interesting stuff Speaking heat rubber motors its well-known fact rubber motors affected heat cold Winding will actually heat up motor slightly unwinding will cool off dont believe go wind up motor feel let unwind touch again Convinced wound motor held waiting just right piece air will begin cool off longer wait heat power lost Thats rubber heaters developed Although number variations around including charcoalburning Norwegian consist battery-powered electric blanket wraps around motor tube keep motor warm cozy until ready launch Typically rubber heater will powered 12-volt starter battery have control allows adjustment desired temperature blanket itself usually measures about 5 x 20 inches has three four Velcro fasteners hold place until time launch Starline offers excellent ready-to-use heater can build own Bill Turner gives detailed instructions 1992 NFFS Sympo available Fred Terzian NFFS publications director address 4858 Moorpark Ave San Jose CA 95129 can Dan Tracy has done build heating element balsa Kevlar motor tube Just plug banana jack turn heat benefit rubber heater will course vary temperature warm weather say above about 750 almost trouble worth cold weather can make big difference tried some full-wind practice flights winter temperature about 450 frst flight heater slow sluggish power stall end burst model fully trimmed warm weather normally climbed much better next flight using heater warm motor produced much better climb no hint stall dont use heater contests heater allows year-round test flying get full benefit heater Get R/C product source thats tuned needsthe Radio Control Buyers Guide 17th Edition handy reference guide thousands products facet R/C modeling Radio Control Buyers Guide covers R/C hobbies including planes helicopters cars monster trucks boats engines radios field acces Get RIC guide tailored fit needs Radio Control Buyers Guide 17th Edition D4OR models neAtO articles sories toolsleVeI~Itofl years guide custom tailored fit requests finished creations all-color Showcase sections greater number how-to articles Plus new companies expanded line entry level cars competition level trucks make guide R/C reference youve waiting Get R/C guide perfect fitthe Radio Control Buyers Guide #12127$1195 [v32][b-1-10-1-10]] Name __________________________________________ lena ______ copys Radio Contro/ Buyers Guide 412127$1195 *Enter total amount form Use ceapen ace mail te Kalmhach Peblisning Co Dept XD83t 21027 Crasarnads Circle PO Bee 986 Waukesha WI 53187-0986 Include postage handling US add $300 4th elena $450 UPS continental US Canada add $500 ether foreign add $1001 Wisconsin resideets add 5% sales raxtototal Canadian orders add 7% 1ST Intel Payable US tends Prices isa avail aol/itO sehiect change *TOtal toclosed $__________________ Please include postage end taxes Address City St e Zip Creelt Card # acceyr American hxyrnns 1mm 515 ManterCard SISA lepiratien Date________________ Phone # __________________ Sgnatere XDB36 May1995 111 Look book local hobby shop call toll free 800-533-6644 24 hours day Please have credit card ready Fax 414-796-0126 Outside US Canada call 414-796-8776 best heat up motor tube motor installed about five minutes before start winding best temperature setting seems vary type rubber Tan II Alexander Andriukov recommends 950—a bit lower using old Tan rubber Although rubber heaters almost exclusively used Wakefield fliers certainly make sense Coupes P 30s long boxy fuselages Old-Timers Mulvihills would require heating blankets would bit awkward use Free Flight Forum member National Free flight Society undoubtedly familiar Symposium group publishes year Lots good information both technical practical anyone interested free flight British equivalent NFFS Sympo Free Flight Forum small group devoted modelers has putting together since 1985 Martin Dilly sent copy latest effort 1994 Free Flight Forum Like its American cousin contains mix technical practical alas no Ten Models Year fact devoid model three-views what did contain bit valuable Perhaps models look about same days Reigning Fl world champion Mike Fantham reflects what feels like win big did Surprisingly talks much about mental aspects event strategy psychology does about model design construction Mick Page follows piece intriguingly titled Positive Results Negative Thinking really gets mental aspects believe handlaunch glider Its interesting note have finally adopted American name event after years calling chuck glider Mick makes some very good points apply free flight just about other endeavor include setting realistic attainable goals adapting tactics fit rules event goes discuss gamesmanship glider flying such waiting until thermal has almost gone through before throwing thus denying competition opportunity piggyback off flight Mike Woolner traces own FiB development beginning first Wakefield model 1990 current state-of-the-art models four pages covers what need know competitive Fl B thing found especially interesting use slight upthrust keep nose up during later part cruise Dont try non VIT model however will loop John Barker put together very through review propeller design Although geared primarily rubber models provides useful guide propeller design theories dating back 1919 Although good bit math involved John does good job making easy understand sums up Propeller design difficult understand long few old ideas forgotten Fundamentally trying to match blade angle forward rotational speeds allowance inflow propeller must assessed conjunction motor model Other articles Forum include piece circle-towing Andy Crisp lots good tips trimming Chris Strachan vintage rubber model selection trimming Forum concludes very through discussion inner workings ClAMthe international rules-making body model aviation presented Ian Kaynes chairman free flight subcommittee ClAM would like copy 1994 Free Flight Forum write Martin Dilly 20 Links Road West Wickham Kent BR4 00W England cost 850 pounds Sterling includes airmail postage might want check NFFS publications director Fred Terzian past has carried Free Flight Forum well Sympo other NFFS publications can pay dollars instead Sterling Model Aviation
Edition: Model Aviation - 1995/05
Page Numbers: 109, 110, 111, 112
FREE FLIGHT DURATION U 1IK-UCAMPBELL KITS Lee Campbell sent along two new hA kits review Frank Garcher-designed Fortastrop Nostalgia vaguely remember Midwest kit Fortastrop mid 1950s cant recall ever seeing built probably designs left behind horsepower square-inch race started Cox Holland engines Fortastrop nice-looking though rather typical 247-squareinch model tapered tips medium-height pylon 33% stab especially like diagonal rib construction stab rudder firmly mounted fuselage Construction simple straightforward About unusual feature built-up sheeted pylon Price kit $2998 other new kit Lee half version Dave Platts Slow Worm larger version Slow Worm has Campbell lineup several years smaller version 300 square inches should work well Tee Dee lighter Russian 12A engines As would expect Dave transplanted Englishman living florida Slow Worm uses lot typical British Open Power model features pylon fairly high though high George Fullers Dixielander rudder back shoald behind stab firmly mounted fuselage wing construction conventional straight ribs single main spar bottom three small spars top Its probably best use tissue supplied kit rather opt plastic films Tissue will give wing extra torsional strength needs stab uses full-depth spar diagonal ribs aft should help provide some torsional rigidity fuselage construction looks stiff full-width diagonal formers way rear Slow Worm 300 sells $3498 can order direct Campbells Custom Kits 4402 Weddel Dearborn Heights MI 48125 May1995 109 Velcro straps hold heater blanket place Jens Kristensens Fl B Sensor heater blanket cycles unit on/off Cameron Ackerly Tony Mathews adjust rubber heater Camerons Wakefield Note 12-volt battery ground Jens uses plastic tackle box hold battery Cut-out lid next handle allows access control box Vladimir Feodorov Moscow gets ready load 36 strands Ia Tan II Fl B last World Championships best features Slow Worm kit Dave Platts very complete set instructions consist four singlespaced 81/2 X 11 sheets Construction takes up little first sheet rest devoted adjustments test flying best instructions trimming have ever seen kit Dave Plan commended Much what Dave discusses applies just about type non-autosurface model bears repeating Rudder Most effective during second half power run say 3-second point As speed increases effect increases Small wedges used power adjustment have little no effect glide Wing Warp Similar rudder effectiveness rises extra speed provides roll couple yaw Slight effect glide What little makes model glide toward washin typical pylon models including Slow-Worm means right what want Side ThrustlDownthrust Used correct direction during first 2-3 seconds power run Effect diminishes during acceleration becomes zero full speed Incidentally effectiveness thrustline adjustments nowhere near great power ships rubber-powered jobs Slow-Worm Ive ever seen has needed degree two left thrust downthrust seems have strange undesirable effect producing nose-up lump engine stops Therefore avoid possible Tail Incidence Positive negative will influence both power glide during power run speed greater Tail Tilt Controls size glide circlemore tilt smaller circle model turns toward high side stab Little no effect under power because tilt works under high-lift conditions During power run angle attack thus lift stab minimum CU Shift Very critical adjustment affecting both power glide Change imperative Most kit plan models have optimum CG position marked will fly well trim Looping sign too-forward CC sign too-aft CC model slow no recovery dive point motor [sic] cut during glide very basic concept some adjustments effective high speeds others effective low speeds allows us fly free radio make adjustments during flight Simple still amazing stop think about Rubber Ramblings seems quite few people still trying figure out FAI Tan II rubber though has out couple years Perhaps some due time takes folks use up stock old Tan real get hang newer Tan II some must Tan II lot different other rubber weve using last dozen years FAI Gray Tan mostly Tan II has lot stretchsomething around 9 1 versus about 75 older stuff Surprisingly has very high energy storage approaching 4000 footpounds per pounda good 20% better old rubber high-end torque lower less dramatic spike torque curve differences stretch torque curve what cause some problems switching over Tan Tan II simply made up new motors same number strands before could pack lot turns burst would rather anemic cure simple just increase number strands shorten overall motor length example went 26 strands Tan about 17 inches long 30 strands Tan II about 15 inches long Wakefield motors Turns went up slightly about 400 around 420 new rubber burst about same cruise much better course Wakefield well Coupe P-30 motor weight fixed motor has shortened number strands increased Mulvihill Free Flight Scale shorter Tan II motor would reduce amount slack eliminate some CC shift toolong motor Since good stock Tan rubber have using testing figure model can handle higher initial torque rapid falloff Tan rubber will behave just fine flatter torque curve Tan II last Finals made up Tan II motors dry weight 39 grams instead usual 385 grams After lubing motors coming out just bit heavy wiped off some lube switched 110 Model Aviation orov gives model hard nearly vertical heave After about Vladimir Feodorov packs turns Note third person bracing 1/2 second prop will start model will climb away foot holder Prop guard protects blades number 8 rubber bands dental bands two make-up bands saved enough weight motors pass processing did look dry During contest didnt blow motor least five six broken strands after flight motor counted ten breaks motors course used flight people think fly rubber models save money fuel best guess motors dry breaking strands readily same dryness kept broken strands sliding loose letting whole motor go Any other explanations last few years have using Sonof-a-Gun lube mainly because easy use doesnt splatter around like glycerin green soap also some problems some commercial rubber lubricants corroding aluminum fittings motor tube nose ring literally eaten two have problems using Son-of-a-Gun time being Im going cut down dry motor weight bit try use some lube what kind dont know traditionalists out keep suggesting glycerin green soap seems new found rubber lube turning up month time can get automotive store wherever theres new lube month out latest recommendation Ed Williamson Turtle Wax Protectant 2001 Its similar Son-of-a-Gun Ed says seems slicker Both products automotive vinyl cleaners best method Ive tried lubing motors get one-gallon plastic freezer bag jam bunch motors squirt lot Son-of-a-Gun should puddle liquid bottom bag seal up gently knead distribute lube Allow marinade couple days kneading occasionally Ed goes step further throwing bag trunk car leaving sun few days sounds bit bizarre dig out article heat treating rubber RW New 1989 Free Flight Forum Interesting stuff Speaking heat rubber motors its well-known fact rubber motors affected heat cold Winding will actually heat up motor slightly unwinding will cool off dont believe go wind up motor feel let unwind touch again Convinced wound motor held waiting just right piece air will begin cool off longer wait heat power lost Thats rubber heaters developed Although number variations around including charcoalburning Norwegian consist battery-powered electric blanket wraps around motor tube keep motor warm cozy until ready launch Typically rubber heater will powered 12-volt starter battery have control allows adjustment desired temperature blanket itself usually measures about 5 x 20 inches has three four Velcro fasteners hold place until time launch Starline offers excellent ready-to-use heater can build own Bill Turner gives detailed instructions 1992 NFFS Sympo available Fred Terzian NFFS publications director address 4858 Moorpark Ave San Jose CA 95129 can Dan Tracy has done build heating element balsa Kevlar motor tube Just plug banana jack turn heat benefit rubber heater will course vary temperature warm weather say above about 750 almost trouble worth cold weather can make big difference tried some full-wind practice flights winter temperature about 450 frst flight heater slow sluggish power stall end burst model fully trimmed warm weather normally climbed much better next flight using heater warm motor produced much better climb no hint stall dont use heater contests heater allows year-round test flying get full benefit heater Get R/C product source thats tuned needsthe Radio Control Buyers Guide 17th Edition handy reference guide thousands products facet R/C modeling Radio Control Buyers Guide covers R/C hobbies including planes helicopters cars monster trucks boats engines radios field acces Get RIC guide tailored fit needs Radio Control Buyers Guide 17th Edition D4OR models neAtO articles sories toolsleVeI~Itofl years guide custom tailored fit requests finished creations all-color Showcase sections greater number how-to articles Plus new companies expanded line entry level cars competition level trucks make guide R/C reference youve waiting Get R/C guide perfect fitthe Radio Control Buyers Guide #12127$1195 [v32][b-1-10-1-10]] Name __________________________________________ lena ______ copys Radio Contro/ Buyers Guide 412127$1195 *Enter total amount form Use ceapen ace mail te Kalmhach Peblisning Co Dept XD83t 21027 Crasarnads Circle PO Bee 986 Waukesha WI 53187-0986 Include postage handling US add $300 4th elena $450 UPS continental US Canada add $500 ether foreign add $1001 Wisconsin resideets add 5% sales raxtototal Canadian orders add 7% 1ST Intel Payable US tends Prices isa avail aol/itO sehiect change *TOtal toclosed $__________________ Please include postage end taxes Address City St e Zip Creelt Card # acceyr American hxyrnns 1mm 515 ManterCard SISA lepiratien Date________________ Phone # __________________ Sgnatere XDB36 May1995 111 Look book local hobby shop call toll free 800-533-6644 24 hours day Please have credit card ready Fax 414-796-0126 Outside US Canada call 414-796-8776 best heat up motor tube motor installed about five minutes before start winding best temperature setting seems vary type rubber Tan II Alexander Andriukov recommends 950—a bit lower using old Tan rubber Although rubber heaters almost exclusively used Wakefield fliers certainly make sense Coupes P 30s long boxy fuselages Old-Timers Mulvihills would require heating blankets would bit awkward use Free Flight Forum member National Free flight Society undoubtedly familiar Symposium group publishes year Lots good information both technical practical anyone interested free flight British equivalent NFFS Sympo Free Flight Forum small group devoted modelers has putting together since 1985 Martin Dilly sent copy latest effort 1994 Free Flight Forum Like its American cousin contains mix technical practical alas no Ten Models Year fact devoid model three-views what did contain bit valuable Perhaps models look about same days Reigning Fl world champion Mike Fantham reflects what feels like win big did Surprisingly talks much about mental aspects event strategy psychology does about model design construction Mick Page follows piece intriguingly titled Positive Results Negative Thinking really gets mental aspects believe handlaunch glider Its interesting note have finally adopted American name event after years calling chuck glider Mick makes some very good points apply free flight just about other endeavor include setting realistic attainable goals adapting tactics fit rules event goes discuss gamesmanship glider flying such waiting until thermal has almost gone through before throwing thus denying competition opportunity piggyback off flight Mike Woolner traces own FiB development beginning first Wakefield model 1990 current state-of-the-art models four pages covers what need know competitive Fl B thing found especially interesting use slight upthrust keep nose up during later part cruise Dont try non VIT model however will loop John Barker put together very through review propeller design Although geared primarily rubber models provides useful guide propeller design theories dating back 1919 Although good bit math involved John does good job making easy understand sums up Propeller design difficult understand long few old ideas forgotten Fundamentally trying to match blade angle forward rotational speeds allowance inflow propeller must assessed conjunction motor model Other articles Forum include piece circle-towing Andy Crisp lots good tips trimming Chris Strachan vintage rubber model selection trimming Forum concludes very through discussion inner workings ClAMthe international rules-making body model aviation presented Ian Kaynes chairman free flight subcommittee ClAM would like copy 1994 Free Flight Forum write Martin Dilly 20 Links Road West Wickham Kent BR4 00W England cost 850 pounds Sterling includes airmail postage might want check NFFS publications director Fred Terzian past has carried Free Flight Forum well Sympo other NFFS publications can pay dollars instead Sterling Model Aviation
Edition: Model Aviation - 1995/05
Page Numbers: 109, 110, 111, 112
FREE FLIGHT DURATION U 1IK-UCAMPBELL KITS Lee Campbell sent along two new hA kits review Frank Garcher-designed Fortastrop Nostalgia vaguely remember Midwest kit Fortastrop mid 1950s cant recall ever seeing built probably designs left behind horsepower square-inch race started Cox Holland engines Fortastrop nice-looking though rather typical 247-squareinch model tapered tips medium-height pylon 33% stab especially like diagonal rib construction stab rudder firmly mounted fuselage Construction simple straightforward About unusual feature built-up sheeted pylon Price kit $2998 other new kit Lee half version Dave Platts Slow Worm larger version Slow Worm has Campbell lineup several years smaller version 300 square inches should work well Tee Dee lighter Russian 12A engines As would expect Dave transplanted Englishman living florida Slow Worm uses lot typical British Open Power model features pylon fairly high though high George Fullers Dixielander rudder back shoald behind stab firmly mounted fuselage wing construction conventional straight ribs single main spar bottom three small spars top Its probably best use tissue supplied kit rather opt plastic films Tissue will give wing extra torsional strength needs stab uses full-depth spar diagonal ribs aft should help provide some torsional rigidity fuselage construction looks stiff full-width diagonal formers way rear Slow Worm 300 sells $3498 can order direct Campbells Custom Kits 4402 Weddel Dearborn Heights MI 48125 May1995 109 Velcro straps hold heater blanket place Jens Kristensens Fl B Sensor heater blanket cycles unit on/off Cameron Ackerly Tony Mathews adjust rubber heater Camerons Wakefield Note 12-volt battery ground Jens uses plastic tackle box hold battery Cut-out lid next handle allows access control box Vladimir Feodorov Moscow gets ready load 36 strands Ia Tan II Fl B last World Championships best features Slow Worm kit Dave Platts very complete set instructions consist four singlespaced 81/2 X 11 sheets Construction takes up little first sheet rest devoted adjustments test flying best instructions trimming have ever seen kit Dave Plan commended Much what Dave discusses applies just about type non-autosurface model bears repeating Rudder Most effective during second half power run say 3-second point As speed increases effect increases Small wedges used power adjustment have little no effect glide Wing Warp Similar rudder effectiveness rises extra speed provides roll couple yaw Slight effect glide What little makes model glide toward washin typical pylon models including Slow-Worm means right what want Side ThrustlDownthrust Used correct direction during first 2-3 seconds power run Effect diminishes during acceleration becomes zero full speed Incidentally effectiveness thrustline adjustments nowhere near great power ships rubber-powered jobs Slow-Worm Ive ever seen has needed degree two left thrust downthrust seems have strange undesirable effect producing nose-up lump engine stops Therefore avoid possible Tail Incidence Positive negative will influence both power glide during power run speed greater Tail Tilt Controls size glide circlemore tilt smaller circle model turns toward high side stab Little no effect under power because tilt works under high-lift conditions During power run angle attack thus lift stab minimum CU Shift Very critical adjustment affecting both power glide Change imperative Most kit plan models have optimum CG position marked will fly well trim Looping sign too-forward CC sign too-aft CC model slow no recovery dive point motor [sic] cut during glide very basic concept some adjustments effective high speeds others effective low speeds allows us fly free radio make adjustments during flight Simple still amazing stop think about Rubber Ramblings seems quite few people still trying figure out FAI Tan II rubber though has out couple years Perhaps some due time takes folks use up stock old Tan real get hang newer Tan II some must Tan II lot different other rubber weve using last dozen years FAI Gray Tan mostly Tan II has lot stretchsomething around 9 1 versus about 75 older stuff Surprisingly has very high energy storage approaching 4000 footpounds per pounda good 20% better old rubber high-end torque lower less dramatic spike torque curve differences stretch torque curve what cause some problems switching over Tan Tan II simply made up new motors same number strands before could pack lot turns burst would rather anemic cure simple just increase number strands shorten overall motor length example went 26 strands Tan about 17 inches long 30 strands Tan II about 15 inches long Wakefield motors Turns went up slightly about 400 around 420 new rubber burst about same cruise much better course Wakefield well Coupe P-30 motor weight fixed motor has shortened number strands increased Mulvihill Free Flight Scale shorter Tan II motor would reduce amount slack eliminate some CC shift toolong motor Since good stock Tan rubber have using testing figure model can handle higher initial torque rapid falloff Tan rubber will behave just fine flatter torque curve Tan II last Finals made up Tan II motors dry weight 39 grams instead usual 385 grams After lubing motors coming out just bit heavy wiped off some lube switched 110 Model Aviation orov gives model hard nearly vertical heave After about Vladimir Feodorov packs turns Note third person bracing 1/2 second prop will start model will climb away foot holder Prop guard protects blades number 8 rubber bands dental bands two make-up bands saved enough weight motors pass processing did look dry During contest didnt blow motor least five six broken strands after flight motor counted ten breaks motors course used flight people think fly rubber models save money fuel best guess motors dry breaking strands readily same dryness kept broken strands sliding loose letting whole motor go Any other explanations last few years have using Sonof-a-Gun lube mainly because easy use doesnt splatter around like glycerin green soap also some problems some commercial rubber lubricants corroding aluminum fittings motor tube nose ring literally eaten two have problems using Son-of-a-Gun time being Im going cut down dry motor weight bit try use some lube what kind dont know traditionalists out keep suggesting glycerin green soap seems new found rubber lube turning up month time can get automotive store wherever theres new lube month out latest recommendation Ed Williamson Turtle Wax Protectant 2001 Its similar Son-of-a-Gun Ed says seems slicker Both products automotive vinyl cleaners best method Ive tried lubing motors get one-gallon plastic freezer bag jam bunch motors squirt lot Son-of-a-Gun should puddle liquid bottom bag seal up gently knead distribute lube Allow marinade couple days kneading occasionally Ed goes step further throwing bag trunk car leaving sun few days sounds bit bizarre dig out article heat treating rubber RW New 1989 Free Flight Forum Interesting stuff Speaking heat rubber motors its well-known fact rubber motors affected heat cold Winding will actually heat up motor slightly unwinding will cool off dont believe go wind up motor feel let unwind touch again Convinced wound motor held waiting just right piece air will begin cool off longer wait heat power lost Thats rubber heaters developed Although number variations around including charcoalburning Norwegian consist battery-powered electric blanket wraps around motor tube keep motor warm cozy until ready launch Typically rubber heater will powered 12-volt starter battery have control allows adjustment desired temperature blanket itself usually measures about 5 x 20 inches has three four Velcro fasteners hold place until time launch Starline offers excellent ready-to-use heater can build own Bill Turner gives detailed instructions 1992 NFFS Sympo available Fred Terzian NFFS publications director address 4858 Moorpark Ave San Jose CA 95129 can Dan Tracy has done build heating element balsa Kevlar motor tube Just plug banana jack turn heat benefit rubber heater will course vary temperature warm weather say above about 750 almost trouble worth cold weather can make big difference tried some full-wind practice flights winter temperature about 450 frst flight heater slow sluggish power stall end burst model fully trimmed warm weather normally climbed much better next flight using heater warm motor produced much better climb no hint stall dont use heater contests heater allows year-round test flying get full benefit heater Get R/C product source thats tuned needsthe Radio Control Buyers Guide 17th Edition handy reference guide thousands products facet R/C modeling Radio Control Buyers Guide covers R/C hobbies including planes helicopters cars monster trucks boats engines radios field acces Get RIC guide tailored fit needs Radio Control Buyers Guide 17th Edition D4OR models neAtO articles sories toolsleVeI~Itofl years guide custom tailored fit requests finished creations all-color Showcase sections greater number how-to articles Plus new companies expanded line entry level cars competition level trucks make guide R/C reference youve waiting Get R/C guide perfect fitthe Radio Control Buyers Guide #12127$1195 [v32][b-1-10-1-10]] Name __________________________________________ lena ______ copys Radio Contro/ Buyers Guide 412127$1195 *Enter total amount form Use ceapen ace mail te Kalmhach Peblisning Co Dept XD83t 21027 Crasarnads Circle PO Bee 986 Waukesha WI 53187-0986 Include postage handling US add $300 4th elena $450 UPS continental US Canada add $500 ether foreign add $1001 Wisconsin resideets add 5% sales raxtototal Canadian orders add 7% 1ST Intel Payable US tends Prices isa avail aol/itO sehiect change *TOtal toclosed $__________________ Please include postage end taxes Address City St e Zip Creelt Card # acceyr American hxyrnns 1mm 515 ManterCard SISA lepiratien Date________________ Phone # __________________ Sgnatere XDB36 May1995 111 Look book local hobby shop call toll free 800-533-6644 24 hours day Please have credit card ready Fax 414-796-0126 Outside US Canada call 414-796-8776 best heat up motor tube motor installed about five minutes before start winding best temperature setting seems vary type rubber Tan II Alexander Andriukov recommends 950—a bit lower using old Tan rubber Although rubber heaters almost exclusively used Wakefield fliers certainly make sense Coupes P 30s long boxy fuselages Old-Timers Mulvihills would require heating blankets would bit awkward use Free Flight Forum member National Free flight Society undoubtedly familiar Symposium group publishes year Lots good information both technical practical anyone interested free flight British equivalent NFFS Sympo Free Flight Forum small group devoted modelers has putting together since 1985 Martin Dilly sent copy latest effort 1994 Free Flight Forum Like its American cousin contains mix technical practical alas no Ten Models Year fact devoid model three-views what did contain bit valuable Perhaps models look about same days Reigning Fl world champion Mike Fantham reflects what feels like win big did Surprisingly talks much about mental aspects event strategy psychology does about model design construction Mick Page follows piece intriguingly titled Positive Results Negative Thinking really gets mental aspects believe handlaunch glider Its interesting note have finally adopted American name event after years calling chuck glider Mick makes some very good points apply free flight just about other endeavor include setting realistic attainable goals adapting tactics fit rules event goes discuss gamesmanship glider flying such waiting until thermal has almost gone through before throwing thus denying competition opportunity piggyback off flight Mike Woolner traces own FiB development beginning first Wakefield model 1990 current state-of-the-art models four pages covers what need know competitive Fl B thing found especially interesting use slight upthrust keep nose up during later part cruise Dont try non VIT model however will loop John Barker put together very through review propeller design Although geared primarily rubber models provides useful guide propeller design theories dating back 1919 Although good bit math involved John does good job making easy understand sums up Propeller design difficult understand long few old ideas forgotten Fundamentally trying to match blade angle forward rotational speeds allowance inflow propeller must assessed conjunction motor model Other articles Forum include piece circle-towing Andy Crisp lots good tips trimming Chris Strachan vintage rubber model selection trimming Forum concludes very through discussion inner workings ClAMthe international rules-making body model aviation presented Ian Kaynes chairman free flight subcommittee ClAM would like copy 1994 Free Flight Forum write Martin Dilly 20 Links Road West Wickham Kent BR4 00W England cost 850 pounds Sterling includes airmail postage might want check NFFS publications director Fred Terzian past has carried Free Flight Forum well Sympo other NFFS publications can pay dollars instead Sterling Model Aviation
Edition: Model Aviation - 1995/05
Page Numbers: 109, 110, 111, 112
FREE FLIGHT DURATION U 1IK-UCAMPBELL KITS Lee Campbell sent along two new hA kits review Frank Garcher-designed Fortastrop Nostalgia vaguely remember Midwest kit Fortastrop mid 1950s cant recall ever seeing built probably designs left behind horsepower square-inch race started Cox Holland engines Fortastrop nice-looking though rather typical 247-squareinch model tapered tips medium-height pylon 33% stab especially like diagonal rib construction stab rudder firmly mounted fuselage Construction simple straightforward About unusual feature built-up sheeted pylon Price kit $2998 other new kit Lee half version Dave Platts Slow Worm larger version Slow Worm has Campbell lineup several years smaller version 300 square inches should work well Tee Dee lighter Russian 12A engines As would expect Dave transplanted Englishman living florida Slow Worm uses lot typical British Open Power model features pylon fairly high though high George Fullers Dixielander rudder back shoald behind stab firmly mounted fuselage wing construction conventional straight ribs single main spar bottom three small spars top Its probably best use tissue supplied kit rather opt plastic films Tissue will give wing extra torsional strength needs stab uses full-depth spar diagonal ribs aft should help provide some torsional rigidity fuselage construction looks stiff full-width diagonal formers way rear Slow Worm 300 sells $3498 can order direct Campbells Custom Kits 4402 Weddel Dearborn Heights MI 48125 May1995 109 Velcro straps hold heater blanket place Jens Kristensens Fl B Sensor heater blanket cycles unit on/off Cameron Ackerly Tony Mathews adjust rubber heater Camerons Wakefield Note 12-volt battery ground Jens uses plastic tackle box hold battery Cut-out lid next handle allows access control box Vladimir Feodorov Moscow gets ready load 36 strands Ia Tan II Fl B last World Championships best features Slow Worm kit Dave Platts very complete set instructions consist four singlespaced 81/2 X 11 sheets Construction takes up little first sheet rest devoted adjustments test flying best instructions trimming have ever seen kit Dave Plan commended Much what Dave discusses applies just about type non-autosurface model bears repeating Rudder Most effective during second half power run say 3-second point As speed increases effect increases Small wedges used power adjustment have little no effect glide Wing Warp Similar rudder effectiveness rises extra speed provides roll couple yaw Slight effect glide What little makes model glide toward washin typical pylon models including Slow-Worm means right what want Side ThrustlDownthrust Used correct direction during first 2-3 seconds power run Effect diminishes during acceleration becomes zero full speed Incidentally effectiveness thrustline adjustments nowhere near great power ships rubber-powered jobs Slow-Worm Ive ever seen has needed degree two left thrust downthrust seems have strange undesirable effect producing nose-up lump engine stops Therefore avoid possible Tail Incidence Positive negative will influence both power glide during power run speed greater Tail Tilt Controls size glide circlemore tilt smaller circle model turns toward high side stab Little no effect under power because tilt works under high-lift conditions During power run angle attack thus lift stab minimum CU Shift Very critical adjustment affecting both power glide Change imperative Most kit plan models have optimum CG position marked will fly well trim Looping sign too-forward CC sign too-aft CC model slow no recovery dive point motor [sic] cut during glide very basic concept some adjustments effective high speeds others effective low speeds allows us fly free radio make adjustments during flight Simple still amazing stop think about Rubber Ramblings seems quite few people still trying figure out FAI Tan II rubber though has out couple years Perhaps some due time takes folks use up stock old Tan real get hang newer Tan II some must Tan II lot different other rubber weve using last dozen years FAI Gray Tan mostly Tan II has lot stretchsomething around 9 1 versus about 75 older stuff Surprisingly has very high energy storage approaching 4000 footpounds per pounda good 20% better old rubber high-end torque lower less dramatic spike torque curve differences stretch torque curve what cause some problems switching over Tan Tan II simply made up new motors same number strands before could pack lot turns burst would rather anemic cure simple just increase number strands shorten overall motor length example went 26 strands Tan about 17 inches long 30 strands Tan II about 15 inches long Wakefield motors Turns went up slightly about 400 around 420 new rubber burst about same cruise much better course Wakefield well Coupe P-30 motor weight fixed motor has shortened number strands increased Mulvihill Free Flight Scale shorter Tan II motor would reduce amount slack eliminate some CC shift toolong motor Since good stock Tan rubber have using testing figure model can handle higher initial torque rapid falloff Tan rubber will behave just fine flatter torque curve Tan II last Finals made up Tan II motors dry weight 39 grams instead usual 385 grams After lubing motors coming out just bit heavy wiped off some lube switched 110 Model Aviation orov gives model hard nearly vertical heave After about Vladimir Feodorov packs turns Note third person bracing 1/2 second prop will start model will climb away foot holder Prop guard protects blades number 8 rubber bands dental bands two make-up bands saved enough weight motors pass processing did look dry During contest didnt blow motor least five six broken strands after flight motor counted ten breaks motors course used flight people think fly rubber models save money fuel best guess motors dry breaking strands readily same dryness kept broken strands sliding loose letting whole motor go Any other explanations last few years have using Sonof-a-Gun lube mainly because easy use doesnt splatter around like glycerin green soap also some problems some commercial rubber lubricants corroding aluminum fittings motor tube nose ring literally eaten two have problems using Son-of-a-Gun time being Im going cut down dry motor weight bit try use some lube what kind dont know traditionalists out keep suggesting glycerin green soap seems new found rubber lube turning up month time can get automotive store wherever theres new lube month out latest recommendation Ed Williamson Turtle Wax Protectant 2001 Its similar Son-of-a-Gun Ed says seems slicker Both products automotive vinyl cleaners best method Ive tried lubing motors get one-gallon plastic freezer bag jam bunch motors squirt lot Son-of-a-Gun should puddle liquid bottom bag seal up gently knead distribute lube Allow marinade couple days kneading occasionally Ed goes step further throwing bag trunk car leaving sun few days sounds bit bizarre dig out article heat treating rubber RW New 1989 Free Flight Forum Interesting stuff Speaking heat rubber motors its well-known fact rubber motors affected heat cold Winding will actually heat up motor slightly unwinding will cool off dont believe go wind up motor feel let unwind touch again Convinced wound motor held waiting just right piece air will begin cool off longer wait heat power lost Thats rubber heaters developed Although number variations around including charcoalburning Norwegian consist battery-powered electric blanket wraps around motor tube keep motor warm cozy until ready launch Typically rubber heater will powered 12-volt starter battery have control allows adjustment desired temperature blanket itself usually measures about 5 x 20 inches has three four Velcro fasteners hold place until time launch Starline offers excellent ready-to-use heater can build own Bill Turner gives detailed instructions 1992 NFFS Sympo available Fred Terzian NFFS publications director address 4858 Moorpark Ave San Jose CA 95129 can Dan Tracy has done build heating element balsa Kevlar motor tube Just plug banana jack turn heat benefit rubber heater will course vary temperature warm weather say above about 750 almost trouble worth cold weather can make big difference tried some full-wind practice flights winter temperature about 450 frst flight heater slow sluggish power stall end burst model fully trimmed warm weather normally climbed much better next flight using heater warm motor produced much better climb no hint stall dont use heater contests heater allows year-round test flying get full benefit heater Get R/C product source thats tuned needsthe Radio Control Buyers Guide 17th Edition handy reference guide thousands products facet R/C modeling Radio Control Buyers Guide covers R/C hobbies including planes helicopters cars monster trucks boats engines radios field acces Get RIC guide tailored fit needs Radio Control Buyers Guide 17th Edition D4OR models neAtO articles sories toolsleVeI~Itofl years guide custom tailored fit requests finished creations all-color Showcase sections greater number how-to articles Plus new companies expanded line entry level cars competition level trucks make guide R/C reference youve waiting Get R/C guide perfect fitthe Radio Control Buyers Guide #12127$1195 [v32][b-1-10-1-10]] Name __________________________________________ lena ______ copys Radio Contro/ Buyers Guide 412127$1195 *Enter total amount form Use ceapen ace mail te Kalmhach Peblisning Co Dept XD83t 21027 Crasarnads Circle PO Bee 986 Waukesha WI 53187-0986 Include postage handling US add $300 4th elena $450 UPS continental US Canada add $500 ether foreign add $1001 Wisconsin resideets add 5% sales raxtototal Canadian orders add 7% 1ST Intel Payable US tends Prices isa avail aol/itO sehiect change *TOtal toclosed $__________________ Please include postage end taxes Address City St e Zip Creelt Card # acceyr American hxyrnns 1mm 515 ManterCard SISA lepiratien Date________________ Phone # __________________ Sgnatere XDB36 May1995 111 Look book local hobby shop call toll free 800-533-6644 24 hours day Please have credit card ready Fax 414-796-0126 Outside US Canada call 414-796-8776 best heat up motor tube motor installed about five minutes before start winding best temperature setting seems vary type rubber Tan II Alexander Andriukov recommends 950—a bit lower using old Tan rubber Although rubber heaters almost exclusively used Wakefield fliers certainly make sense Coupes P 30s long boxy fuselages Old-Timers Mulvihills would require heating blankets would bit awkward use Free Flight Forum member National Free flight Society undoubtedly familiar Symposium group publishes year Lots good information both technical practical anyone interested free flight British equivalent NFFS Sympo Free Flight Forum small group devoted modelers has putting together since 1985 Martin Dilly sent copy latest effort 1994 Free Flight Forum Like its American cousin contains mix technical practical alas no Ten Models Year fact devoid model three-views what did contain bit valuable Perhaps models look about same days Reigning Fl world champion Mike Fantham reflects what feels like win big did Surprisingly talks much about mental aspects event strategy psychology does about model design construction Mick Page follows piece intriguingly titled Positive Results Negative Thinking really gets mental aspects believe handlaunch glider Its interesting note have finally adopted American name event after years calling chuck glider Mick makes some very good points apply free flight just about other endeavor include setting realistic attainable goals adapting tactics fit rules event goes discuss gamesmanship glider flying such waiting until thermal has almost gone through before throwing thus denying competition opportunity piggyback off flight Mike Woolner traces own FiB development beginning first Wakefield model 1990 current state-of-the-art models four pages covers what need know competitive Fl B thing found especially interesting use slight upthrust keep nose up during later part cruise Dont try non VIT model however will loop John Barker put together very through review propeller design Although geared primarily rubber models provides useful guide propeller design theories dating back 1919 Although good bit math involved John does good job making easy understand sums up Propeller design difficult understand long few old ideas forgotten Fundamentally trying to match blade angle forward rotational speeds allowance inflow propeller must assessed conjunction motor model Other articles Forum include piece circle-towing Andy Crisp lots good tips trimming Chris Strachan vintage rubber model selection trimming Forum concludes very through discussion inner workings ClAMthe international rules-making body model aviation presented Ian Kaynes chairman free flight subcommittee ClAM would like copy 1994 Free Flight Forum write Martin Dilly 20 Links Road West Wickham Kent BR4 00W England cost 850 pounds Sterling includes airmail postage might want check NFFS publications director Fred Terzian past has carried Free Flight Forum well Sympo other NFFS publications can pay dollars instead Sterling Model Aviation