FREE FLIGHT DURATION U W1 THE 1998 SYMPO hope have now seen 1997 National Free Flight Society Symposium Like previous Sympos volunteer collaborative effort can enjoy share thanks participated writers artists editors patrons Now its time start work 1998 Sympo NFFS needs help 1998 Sympo editor Dan Tracy soliciting proposals technical articles Send brief description proposed article Daniel Tracy Box 244 Maple Valley WA 98038 Dan needs proposal January 15 1998 proposal accepted finished manuscript will due no later March 15 1998 Sympo articles dont have filled complicated equations computergenerated graphs charts look through few back issues will show wide range possible subjects As writing about anything its best pick topic know very very well Writing Sympo article does take lot work pay nonexistent opportunity duty add cumulative knowledge base Free flight addition technical articles Sympo contains Ten Models Year 1998 Bob Perkins will heading up committee select winners Categories include FIA towline glider FiB Wakefield rubber FiC power Small Gas Large Gas Indoor Small Rubber HLG possible nominations should include description model its contest record reasons nomination photographs model accurate three-view drawings Remember special awards sometimes given things other models such engines timers etc have positive impact Free flight Send nomination Bob Perkins 2285 Pinebrook Road Columbus OH 43220 Another important part Sympo Free flight Hall Fame opportunity honor someone has made outstanding contribution Free Flight designer builder competitor manufacturer administrator Send nominations Hall Fame chairman Jim Haught 4629 E 150 North Anderson IN 46012-9436 Please include biographical sketch nominee along reasons should inducted Hall Fame Photographs would also appreciated Bill Vanderbeek will charge fund-raising again year efforts last year garnered 400 Sympo patrons raising excess $20000 NFFS member should getting letter Bill asking contribution sometime Spring NFFS member can write Bill Vanderbeek 13300 Simon Lane Los Altos Hills CA 94022 about becoming Sympo patron information NFFS membership write NFFS Membership Office 3317 Pine Timbers Drive Johnson City TN 376041404 Dues $20 year ages 19 over junior membership age 18 under $750 Membership includes subscription Free Flight NFFS Digest published 10 times year Please join missed getting 1997 Sympo copies still available cost $20 NFFS members $24 non-members Postage additional $4 anywhere world Fred Terzian handles publications organization can supply price list other NFFS Sympos Free flight books Write NFFS Publications 4858 Moorpark Ave San Jose CA 95129 1998 Sympo scheduled Summer 1998 publication price has set Building Carbon During last 20 years use carbon fiber Free flight models has increased dramatically first few strips used sparingly high-stress areas Next came molded propellers power models spars trailing edges D-boxes carbon Now almost current international class FlA glider FiB Wakefield FiC power models make extensive use carbon-fiber structures Virtually entire wing except ribs now carbon Tailbooms usually rolled tube carbon often used combination very thin aluminum and/or balsa stabilizers becoming blacker carbon replaces balsa Carbon fiber has allowed us build thinner longer stiffer lighter accurate wings ever possible balsa construction carbon-fiber wing actually easier building comparable balsa wing fewer pieces carbon wing comparable balsa wing carbon wings dont change trim balsa wings often January1998 105 Ed Turner holds Eugene Gorbans 86inch-span Fl B carbon-fiber D-box about inch wide wing root latest generation Fl C power models uses carbon-fiber D-box construction allowing wingspans well excess 100 inches Although balsa has dominant building material Free Flight since 1930s carbon fiber offers two important advantages much much stiffer balsa used properly consistent weight Balsa know can vary density around four pounds per cubic foot 20 pounds some disadvantages carbon fiber much dense balsa have use carefully small pieces keep models weight down Carbon fiber readily available balsa Although carbon fiber much expensive balsa tends less waste requires some different skills use successfully Over next couple months will dealing carbon both building carbon D-box wing use carbon fiber augment conventional balsa construction Although carbon fiber available variety forms two suitable uses carbon fiber sheet carbon fiber cloth Like balsa carbon fiber sheet comes variety thicknesses thinnest carbon sheet 001 003 inches often used rib caps strengthening stiffening predominately balsa structures Thicker carbon 007 032 inches used spars trailing edges Carbon up about 014 inches can stripped much like balsa using sharp knife straightedge thicker carbon can also cut way slow process better alternative use homemade saw made Dremel Moto-tool cutoff wheel makes clean-edge cuts minimum amount waste can also order cut-to-size carbon strips several sources Carbon cloth comes limited selection weights weaves Perhaps Only Ths obby Line Model Airplanes Helicopters Boats Cars JAGUAR 40 ARFPIPER CUB J-3/ARF 40 YELLOW ALL WOOD CONSI Span 48 SPWing Span 67 Length 43 a- 57 lbsgWeight 79 lbs Weight 40 lb Length 40Item#867 ltemi865D II FIRE FLY ARF 10-15 2G GLOW INTHE DARK AFTER SUNSETsME Wing Span 49 Length 347 ~i99 Weight 22 Ibs 24 lbs Item #94094t1t SKY BABY-SI ARF 25-35 2C TRAINER SN-I Wing Span 515 Length 36 Weight 33 lb 1teme852 J06I5 DEALERS AND DISTRIBUTDRS INQUIRIES WELCOME QIDERLQNL 1400-2494544 u TECH INFORMATION 1-201-460-0544 OUR FAX LINE 1-2014604770 WE ACCEPT VISA EASTER CARD & DISCOVER CARDS PRICES SUBJECT TO CHANGE WITHOUT NOTICE STORE HOURS MONDAY THRU THURSDAY 10 AM TO 7 PM FRIDAY 10 AM TO 9 PM SATURDAYS 10 AM TO 4 PM PACKAGING AND SHIPPING FEE S5 SD NEW JERSEY RESIDENTS ADD 6% SALES TAX US HOBBY INC 200 MOONACHIE AVE MOONACHIE NJ 07074 US HOBBY INC January1998 107 Simple lightweight radial engine mount Texas Timers fits Russian-made Stels AME 1/2A icc engines Mount screws back engine place stock cover Twelve predrilled holes offer variety engine positions r SKY BABY-L/ARF 25-35 2C TRAINER SFI- Wing Span 515 Length 36 Weight 33 lb Iteme8S4 J6UD5 00 S FEATHER CUT creates new standard ease ana accuracy cutting white blue foam wing cores s off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro. first time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing ng templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 49380 SKYHARBOR WAY FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S & H SKYWATCH 3D Omni-directional Solar Powered Comes Protective Cap usable 29 ounce per square yard plain-weave cloth often used vacuum-bag molding D-boxes Although process sounds exotic difficult actually quite easy cloth wetted out epoxy resin draped over simple form inserted vacuum bag vacuuming process pulls cloth down shape form holds until hardens feel much easier vacuum bag carbon fiber D-box build balsa carbon version will considerably stiffer will have consistent leading edge radius will probably lighter maximum torsional strength carbon cloth laid up fibers arranged 45O reason important carbon cloth balanced weave same number warp fill threads per inch least supplier Composite Structures Technology offers bias-cut carbon cloth minimize waste cutting pieces D-boxes Ready-made carbon fiber D-boxes also available several sources maximum strength minimum weight carbon fiber must used places will good often means using carbon fiber top bottom flanges I-beam some lighter material such balsa Rohacell foam forming web between Most carbon D-box wings use fulldepth spar made way well balsa ribs capped top bottom thin strips carbon carbon spar provides bending strength carbon D-box takes care torsional loads carbon-capped ribs basically support trailing edge covering Since wing inherently stiff dependent covering added rigidity case typical balsa-and-tissue structure Next month well taker closer look working carbon fiber Texas Timers Hank Nystrom branching out addition extensive line clockwork Texas Timers offering few other items power flier 108 Model Aviation Ac4 Kit Features Wire Spoked Wheels Lewis Gun Deardmore Engine Full Cockpit Turnbuckles & Hardware Color Plans Photo Package Scale Documents Book CNC Machined Laser Cut Parts FOR FULL LINE OF KITS AND ARIZONA MODEL AIRCHAFIERS IJ5U EASI tRAY RUAU SCUUlUALE AZ 55OU TO PLACE ORDER CALL 612 314-9937 FAX ORDERS 602 314-3409 Ru & HP ENGINES MADE UN USA MOdERN RIC & Old TiME ViNTAqE SEND $100 FOR OUR NEW 64 PAGE CATALOG OF ENGINES PARTS AccEssoRIEs AND TECHNICAL INFORMATION RJL factory parts source engines RJL Engines German HB Engines A HP Hienberger Engines Engines Kraft 61 ---Conquest 15 -- Taipan 40 Tester McCoy Series 21 Black Head Finned Case Kavan---Forster Engines --- Mutunuc Engines RIL 5ox5 SiDvwM&RR Ci 51112 Phone 626 359-0016 FAX 626 301 0298 Website www mecoa corn l RJL@necoa corn radial mount Russianmade Stels AME 0491061 engines backplate works much like ones have offered past Cox TD 1/2A engines simply unscrew factory backplate cover replace flanged mount see photos mount predrilled 12 equallyspaced holes can orient engine upright vertical sidewinder couple angles between mount slightly heavier backplate replaces total weight installed engine good bit less since can eliminate heavier beam mounts four mounting screws predrilled holes match predrilled TD mounts glass-filled beam mounts making easy try Russian engines Radial Engine Mount sells $5 plus $150 shipping Also Hank soft fuel tubing engine cutoff tubing comes two sizes small tubing has inside diameter 062 inch outside diameter 095 inches roughly 1A6 inch ID 3A2 inch OD large tubing has ID 078 OD 125 1/s inch small tubing perfect 020 engines soft enough work relatively weak pinchoff Tomy timers larger tubing good alternative inch latex tubing Hank reports large tubing will handle bladder pressure blowing up crushes down cleanly standard pinch-off system tubing slightly whitish clear virtually impervious high-nitro fuels well sualight small tubing $1 foot large tubing $125 foot Shipping $150 up 10 feet tubing information order write Hank Texas Timers 3317 Pine Timbers Drive Johnson City TN 37604 TelIFax 423 282-6423 E-mail txtimer@triconnet Yes same address NFFS Membership Office Hank handles volunteer basis well selling timers 110 Model Aviation 0-877-1445 f Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endors.d AMA/RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S MailCODs Visit home page http//wwwdnjeIectronicscom Email david@dnjeIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8YSQ r Campbell Model Supply Glenn Campbell recently sent latest catalog Free Flight products Some basics included Esaki Gampi tissue sheet balsa including 4-6 pound stock plastic props variety sizes Also included couple Indoor kits Japan kits very complete look like good way try Indoor flying winter lOt/2-inch-span models $895 133h-inch models $1795 Also Japan neat folding plastic prop complete shaft washer prop hanger $595 something bit different consider Condenser Plane 13inch-span Indoor model uses tiny electric motor instead usual rubber strip Rather batteries uses condenser store electrical charge Looks like lot fun $2999 Also available series 25inch-span Electric models built lightweight foam use geared Mabuchi motors Models include de Havilland Puss Moth Ryan trainer P-Si Mustang Price $4995 Scale models plus $3 postage copy catalog contact Campbell Model Supply 37742 Carson Farmington Hills MI 48331 Tel/Fax 248 478-7846 ors note Word has reached us latest shipments Cox Tee Dee 049s contain some engines red 051 carburetor housings though engines 049 displacement apparently done use existing 051 parts inventory engines identffiable 049s number 4 stamped engine 049 pistons have groove 051 versi ElevonMixer ELECTRONIC MIXER elevons v-tails flap spoilers Ultra-aimple 54145 Installallon Rugged microproceesor baaed deelgo 100% eleclrorric Irigh ret abtty Simply emoted between servo receiver Featuree eervo reversing low differani mining rates allow tailor mixer need yore model Will overdrive servo t option eve selected wif ft simple dip switch Made USA designed wink modem redo eyst emsAM FM PCM Very low power coneumplion Size 16 n n 04 Weight 025oz Lea radio connector. Pert Ms OA $3096 l. connectors $1655 complete AccessorySwitch ACCESSORY SWITCH give ability add en onoff function chartoet wiltront sacrIfIcing cIte g~ abilfy contral servo AcceuaorySwitch designed awltnt 11030 vofte 45 1030 amp man power disaipetron 01 300 wwtf Modem mioropmceesor-beed design rySwilch very simple 51545 end instatHual connect servo receiver soy chereset chnoee off polrtts oelected simple dip awitcha 16 different value. LED indicator help 5e1545 Unit sttomatrcally 1111 off transmitter off Made USA designed work modem radio aysteme Small size 1ff n 055 n 04 Weight 12 oz Low power correrenpllan Lee radio connector Part No — AS72OU $3466 Corrfef oyof emo ofherproducfo available orplanea care andboafa Call evtte yor detail. GlowDriver ON-BOARD GLOW DRfVER metre sterling easier end safer Keep glow plug hot just englo need Mioroproc esaorbaaed design simply connects between throttle servo receiver Reversi ble seer-selectable oft points Can easily dive two-cylInder twtn-englne models Urrit aelometloatly two off trenernitter off 100% electrorric Made USA designed work modem radio systems Very emaIl size 1 n 12 n 0A Weight 04oz Low power conaumplion Come wth battery/plug wire 15 corstectom cell plug dip Part No OA $3496 Dual-Output ServoReverser January1998 111 71u liffimufe TRUE TURbOjET ENqINE RUNS ON WhITE ONE WhilE oF ThRUST WiTIUll ThROTTLE corjnioL AMA AppRovEd QSL7ZD 11/2 Hour Video Only $2000 post paid $398000 Complete Computer Sophia U5AM PO Box 98- Sierra Madre Ca 91025 USA Telephone 626 359-9527 Fax 626-30 1 -029 Website f httnI/www
Edition: Model Aviation - 1998/01
Page Numbers: 105, 107, 108, 110, 111
FREE FLIGHT DURATION U W1 THE 1998 SYMPO hope have now seen 1997 National Free Flight Society Symposium Like previous Sympos volunteer collaborative effort can enjoy share thanks participated writers artists editors patrons Now its time start work 1998 Sympo NFFS needs help 1998 Sympo editor Dan Tracy soliciting proposals technical articles Send brief description proposed article Daniel Tracy Box 244 Maple Valley WA 98038 Dan needs proposal January 15 1998 proposal accepted finished manuscript will due no later March 15 1998 Sympo articles dont have filled complicated equations computergenerated graphs charts look through few back issues will show wide range possible subjects As writing about anything its best pick topic know very very well Writing Sympo article does take lot work pay nonexistent opportunity duty add cumulative knowledge base Free flight addition technical articles Sympo contains Ten Models Year 1998 Bob Perkins will heading up committee select winners Categories include FIA towline glider FiB Wakefield rubber FiC power Small Gas Large Gas Indoor Small Rubber HLG possible nominations should include description model its contest record reasons nomination photographs model accurate three-view drawings Remember special awards sometimes given things other models such engines timers etc have positive impact Free flight Send nomination Bob Perkins 2285 Pinebrook Road Columbus OH 43220 Another important part Sympo Free flight Hall Fame opportunity honor someone has made outstanding contribution Free Flight designer builder competitor manufacturer administrator Send nominations Hall Fame chairman Jim Haught 4629 E 150 North Anderson IN 46012-9436 Please include biographical sketch nominee along reasons should inducted Hall Fame Photographs would also appreciated Bill Vanderbeek will charge fund-raising again year efforts last year garnered 400 Sympo patrons raising excess $20000 NFFS member should getting letter Bill asking contribution sometime Spring NFFS member can write Bill Vanderbeek 13300 Simon Lane Los Altos Hills CA 94022 about becoming Sympo patron information NFFS membership write NFFS Membership Office 3317 Pine Timbers Drive Johnson City TN 376041404 Dues $20 year ages 19 over junior membership age 18 under $750 Membership includes subscription Free Flight NFFS Digest published 10 times year Please join missed getting 1997 Sympo copies still available cost $20 NFFS members $24 non-members Postage additional $4 anywhere world Fred Terzian handles publications organization can supply price list other NFFS Sympos Free flight books Write NFFS Publications 4858 Moorpark Ave San Jose CA 95129 1998 Sympo scheduled Summer 1998 publication price has set Building Carbon During last 20 years use carbon fiber Free flight models has increased dramatically first few strips used sparingly high-stress areas Next came molded propellers power models spars trailing edges D-boxes carbon Now almost current international class FlA glider FiB Wakefield FiC power models make extensive use carbon-fiber structures Virtually entire wing except ribs now carbon Tailbooms usually rolled tube carbon often used combination very thin aluminum and/or balsa stabilizers becoming blacker carbon replaces balsa Carbon fiber has allowed us build thinner longer stiffer lighter accurate wings ever possible balsa construction carbon-fiber wing actually easier building comparable balsa wing fewer pieces carbon wing comparable balsa wing carbon wings dont change trim balsa wings often January1998 105 Ed Turner holds Eugene Gorbans 86inch-span Fl B carbon-fiber D-box about inch wide wing root latest generation Fl C power models uses carbon-fiber D-box construction allowing wingspans well excess 100 inches Although balsa has dominant building material Free Flight since 1930s carbon fiber offers two important advantages much much stiffer balsa used properly consistent weight Balsa know can vary density around four pounds per cubic foot 20 pounds some disadvantages carbon fiber much dense balsa have use carefully small pieces keep models weight down Carbon fiber readily available balsa Although carbon fiber much expensive balsa tends less waste requires some different skills use successfully Over next couple months will dealing carbon both building carbon D-box wing use carbon fiber augment conventional balsa construction Although carbon fiber available variety forms two suitable uses carbon fiber sheet carbon fiber cloth Like balsa carbon fiber sheet comes variety thicknesses thinnest carbon sheet 001 003 inches often used rib caps strengthening stiffening predominately balsa structures Thicker carbon 007 032 inches used spars trailing edges Carbon up about 014 inches can stripped much like balsa using sharp knife straightedge thicker carbon can also cut way slow process better alternative use homemade saw made Dremel Moto-tool cutoff wheel makes clean-edge cuts minimum amount waste can also order cut-to-size carbon strips several sources Carbon cloth comes limited selection weights weaves Perhaps Only Ths obby Line Model Airplanes Helicopters Boats Cars JAGUAR 40 ARFPIPER CUB J-3/ARF 40 YELLOW ALL WOOD CONSI Span 48 SPWing Span 67 Length 43 a- 57 lbsgWeight 79 lbs Weight 40 lb Length 40Item#867 ltemi865D II FIRE FLY ARF 10-15 2G GLOW INTHE DARK AFTER SUNSETsME Wing Span 49 Length 347 ~i99 Weight 22 Ibs 24 lbs Item #94094t1t SKY BABY-SI ARF 25-35 2C TRAINER SN-I Wing Span 515 Length 36 Weight 33 lb 1teme852 J06I5 DEALERS AND DISTRIBUTDRS INQUIRIES WELCOME QIDERLQNL 1400-2494544 u TECH INFORMATION 1-201-460-0544 OUR FAX LINE 1-2014604770 WE ACCEPT VISA EASTER CARD & DISCOVER CARDS PRICES SUBJECT TO CHANGE WITHOUT NOTICE STORE HOURS MONDAY THRU THURSDAY 10 AM TO 7 PM FRIDAY 10 AM TO 9 PM SATURDAYS 10 AM TO 4 PM PACKAGING AND SHIPPING FEE S5 SD NEW JERSEY RESIDENTS ADD 6% SALES TAX US HOBBY INC 200 MOONACHIE AVE MOONACHIE NJ 07074 US HOBBY INC January1998 107 Simple lightweight radial engine mount Texas Timers fits Russian-made Stels AME 1/2A icc engines Mount screws back engine place stock cover Twelve predrilled holes offer variety engine positions r SKY BABY-L/ARF 25-35 2C TRAINER SFI- Wing Span 515 Length 36 Weight 33 lb Iteme8S4 J6UD5 00 S FEATHER CUT creates new standard ease ana accuracy cutting white blue foam wing cores s off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro. first time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing ng templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 49380 SKYHARBOR WAY FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S & H SKYWATCH 3D Omni-directional Solar Powered Comes Protective Cap usable 29 ounce per square yard plain-weave cloth often used vacuum-bag molding D-boxes Although process sounds exotic difficult actually quite easy cloth wetted out epoxy resin draped over simple form inserted vacuum bag vacuuming process pulls cloth down shape form holds until hardens feel much easier vacuum bag carbon fiber D-box build balsa carbon version will considerably stiffer will have consistent leading edge radius will probably lighter maximum torsional strength carbon cloth laid up fibers arranged 45O reason important carbon cloth balanced weave same number warp fill threads per inch least supplier Composite Structures Technology offers bias-cut carbon cloth minimize waste cutting pieces D-boxes Ready-made carbon fiber D-boxes also available several sources maximum strength minimum weight carbon fiber must used places will good often means using carbon fiber top bottom flanges I-beam some lighter material such balsa Rohacell foam forming web between Most carbon D-box wings use fulldepth spar made way well balsa ribs capped top bottom thin strips carbon carbon spar provides bending strength carbon D-box takes care torsional loads carbon-capped ribs basically support trailing edge covering Since wing inherently stiff dependent covering added rigidity case typical balsa-and-tissue structure Next month well taker closer look working carbon fiber Texas Timers Hank Nystrom branching out addition extensive line clockwork Texas Timers offering few other items power flier 108 Model Aviation Ac4 Kit Features Wire Spoked Wheels Lewis Gun Deardmore Engine Full Cockpit Turnbuckles & Hardware Color Plans Photo Package Scale Documents Book CNC Machined Laser Cut Parts FOR FULL LINE OF KITS AND ARIZONA MODEL AIRCHAFIERS IJ5U EASI tRAY RUAU SCUUlUALE AZ 55OU TO PLACE ORDER CALL 612 314-9937 FAX ORDERS 602 314-3409 Ru & HP ENGINES MADE UN USA MOdERN RIC & Old TiME ViNTAqE SEND $100 FOR OUR NEW 64 PAGE CATALOG OF ENGINES PARTS AccEssoRIEs AND TECHNICAL INFORMATION RJL factory parts source engines RJL Engines German HB Engines A HP Hienberger Engines Engines Kraft 61 ---Conquest 15 -- Taipan 40 Tester McCoy Series 21 Black Head Finned Case Kavan---Forster Engines --- Mutunuc Engines RIL 5ox5 SiDvwM&RR Ci 51112 Phone 626 359-0016 FAX 626 301 0298 Website www mecoa corn l RJL@necoa corn radial mount Russianmade Stels AME 0491061 engines backplate works much like ones have offered past Cox TD 1/2A engines simply unscrew factory backplate cover replace flanged mount see photos mount predrilled 12 equallyspaced holes can orient engine upright vertical sidewinder couple angles between mount slightly heavier backplate replaces total weight installed engine good bit less since can eliminate heavier beam mounts four mounting screws predrilled holes match predrilled TD mounts glass-filled beam mounts making easy try Russian engines Radial Engine Mount sells $5 plus $150 shipping Also Hank soft fuel tubing engine cutoff tubing comes two sizes small tubing has inside diameter 062 inch outside diameter 095 inches roughly 1A6 inch ID 3A2 inch OD large tubing has ID 078 OD 125 1/s inch small tubing perfect 020 engines soft enough work relatively weak pinchoff Tomy timers larger tubing good alternative inch latex tubing Hank reports large tubing will handle bladder pressure blowing up crushes down cleanly standard pinch-off system tubing slightly whitish clear virtually impervious high-nitro fuels well sualight small tubing $1 foot large tubing $125 foot Shipping $150 up 10 feet tubing information order write Hank Texas Timers 3317 Pine Timbers Drive Johnson City TN 37604 TelIFax 423 282-6423 E-mail txtimer@triconnet Yes same address NFFS Membership Office Hank handles volunteer basis well selling timers 110 Model Aviation 0-877-1445 f Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endors.d AMA/RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S MailCODs Visit home page http//wwwdnjeIectronicscom Email david@dnjeIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8YSQ r Campbell Model Supply Glenn Campbell recently sent latest catalog Free Flight products Some basics included Esaki Gampi tissue sheet balsa including 4-6 pound stock plastic props variety sizes Also included couple Indoor kits Japan kits very complete look like good way try Indoor flying winter lOt/2-inch-span models $895 133h-inch models $1795 Also Japan neat folding plastic prop complete shaft washer prop hanger $595 something bit different consider Condenser Plane 13inch-span Indoor model uses tiny electric motor instead usual rubber strip Rather batteries uses condenser store electrical charge Looks like lot fun $2999 Also available series 25inch-span Electric models built lightweight foam use geared Mabuchi motors Models include de Havilland Puss Moth Ryan trainer P-Si Mustang Price $4995 Scale models plus $3 postage copy catalog contact Campbell Model Supply 37742 Carson Farmington Hills MI 48331 Tel/Fax 248 478-7846 ors note Word has reached us latest shipments Cox Tee Dee 049s contain some engines red 051 carburetor housings though engines 049 displacement apparently done use existing 051 parts inventory engines identffiable 049s number 4 stamped engine 049 pistons have groove 051 versi ElevonMixer ELECTRONIC MIXER elevons v-tails flap spoilers Ultra-aimple 54145 Installallon Rugged microproceesor baaed deelgo 100% eleclrorric Irigh ret abtty Simply emoted between servo receiver Featuree eervo reversing low differani mining rates allow tailor mixer need yore model Will overdrive servo t option eve selected wif ft simple dip switch Made USA designed wink modem redo eyst emsAM FM PCM Very low power coneumplion Size 16 n n 04 Weight 025oz Lea radio connector. Pert Ms OA $3096 l. connectors $1655 complete AccessorySwitch ACCESSORY SWITCH give ability add en onoff function chartoet wiltront sacrIfIcing cIte g~ abilfy contral servo AcceuaorySwitch designed awltnt 11030 vofte 45 1030 amp man power disaipetron 01 300 wwtf Modem mioropmceesor-beed design rySwilch very simple 51545 end instatHual connect servo receiver soy chereset chnoee off polrtts oelected simple dip awitcha 16 different value. LED indicator help 5e1545 Unit sttomatrcally 1111 off transmitter off Made USA designed work modem radio aysteme Small size 1ff n 055 n 04 Weight 12 oz Low power correrenpllan Lee radio connector Part No — AS72OU $3466 Corrfef oyof emo ofherproducfo available orplanea care andboafa Call evtte yor detail. GlowDriver ON-BOARD GLOW DRfVER metre sterling easier end safer Keep glow plug hot just englo need Mioroproc esaorbaaed design simply connects between throttle servo receiver Reversi ble seer-selectable oft points Can easily dive two-cylInder twtn-englne models Urrit aelometloatly two off trenernitter off 100% electrorric Made USA designed work modem radio systems Very emaIl size 1 n 12 n 0A Weight 04oz Low power conaumplion Come wth battery/plug wire 15 corstectom cell plug dip Part No OA $3496 Dual-Output ServoReverser January1998 111 71u liffimufe TRUE TURbOjET ENqINE RUNS ON WhITE ONE WhilE oF ThRUST WiTIUll ThROTTLE corjnioL AMA AppRovEd QSL7ZD 11/2 Hour Video Only $2000 post paid $398000 Complete Computer Sophia U5AM PO Box 98- Sierra Madre Ca 91025 USA Telephone 626 359-9527 Fax 626-30 1 -029 Website f httnI/www
Edition: Model Aviation - 1998/01
Page Numbers: 105, 107, 108, 110, 111
FREE FLIGHT DURATION U W1 THE 1998 SYMPO hope have now seen 1997 National Free Flight Society Symposium Like previous Sympos volunteer collaborative effort can enjoy share thanks participated writers artists editors patrons Now its time start work 1998 Sympo NFFS needs help 1998 Sympo editor Dan Tracy soliciting proposals technical articles Send brief description proposed article Daniel Tracy Box 244 Maple Valley WA 98038 Dan needs proposal January 15 1998 proposal accepted finished manuscript will due no later March 15 1998 Sympo articles dont have filled complicated equations computergenerated graphs charts look through few back issues will show wide range possible subjects As writing about anything its best pick topic know very very well Writing Sympo article does take lot work pay nonexistent opportunity duty add cumulative knowledge base Free flight addition technical articles Sympo contains Ten Models Year 1998 Bob Perkins will heading up committee select winners Categories include FIA towline glider FiB Wakefield rubber FiC power Small Gas Large Gas Indoor Small Rubber HLG possible nominations should include description model its contest record reasons nomination photographs model accurate three-view drawings Remember special awards sometimes given things other models such engines timers etc have positive impact Free flight Send nomination Bob Perkins 2285 Pinebrook Road Columbus OH 43220 Another important part Sympo Free flight Hall Fame opportunity honor someone has made outstanding contribution Free Flight designer builder competitor manufacturer administrator Send nominations Hall Fame chairman Jim Haught 4629 E 150 North Anderson IN 46012-9436 Please include biographical sketch nominee along reasons should inducted Hall Fame Photographs would also appreciated Bill Vanderbeek will charge fund-raising again year efforts last year garnered 400 Sympo patrons raising excess $20000 NFFS member should getting letter Bill asking contribution sometime Spring NFFS member can write Bill Vanderbeek 13300 Simon Lane Los Altos Hills CA 94022 about becoming Sympo patron information NFFS membership write NFFS Membership Office 3317 Pine Timbers Drive Johnson City TN 376041404 Dues $20 year ages 19 over junior membership age 18 under $750 Membership includes subscription Free Flight NFFS Digest published 10 times year Please join missed getting 1997 Sympo copies still available cost $20 NFFS members $24 non-members Postage additional $4 anywhere world Fred Terzian handles publications organization can supply price list other NFFS Sympos Free flight books Write NFFS Publications 4858 Moorpark Ave San Jose CA 95129 1998 Sympo scheduled Summer 1998 publication price has set Building Carbon During last 20 years use carbon fiber Free flight models has increased dramatically first few strips used sparingly high-stress areas Next came molded propellers power models spars trailing edges D-boxes carbon Now almost current international class FlA glider FiB Wakefield FiC power models make extensive use carbon-fiber structures Virtually entire wing except ribs now carbon Tailbooms usually rolled tube carbon often used combination very thin aluminum and/or balsa stabilizers becoming blacker carbon replaces balsa Carbon fiber has allowed us build thinner longer stiffer lighter accurate wings ever possible balsa construction carbon-fiber wing actually easier building comparable balsa wing fewer pieces carbon wing comparable balsa wing carbon wings dont change trim balsa wings often January1998 105 Ed Turner holds Eugene Gorbans 86inch-span Fl B carbon-fiber D-box about inch wide wing root latest generation Fl C power models uses carbon-fiber D-box construction allowing wingspans well excess 100 inches Although balsa has dominant building material Free Flight since 1930s carbon fiber offers two important advantages much much stiffer balsa used properly consistent weight Balsa know can vary density around four pounds per cubic foot 20 pounds some disadvantages carbon fiber much dense balsa have use carefully small pieces keep models weight down Carbon fiber readily available balsa Although carbon fiber much expensive balsa tends less waste requires some different skills use successfully Over next couple months will dealing carbon both building carbon D-box wing use carbon fiber augment conventional balsa construction Although carbon fiber available variety forms two suitable uses carbon fiber sheet carbon fiber cloth Like balsa carbon fiber sheet comes variety thicknesses thinnest carbon sheet 001 003 inches often used rib caps strengthening stiffening predominately balsa structures Thicker carbon 007 032 inches used spars trailing edges Carbon up about 014 inches can stripped much like balsa using sharp knife straightedge thicker carbon can also cut way slow process better alternative use homemade saw made Dremel Moto-tool cutoff wheel makes clean-edge cuts minimum amount waste can also order cut-to-size carbon strips several sources Carbon cloth comes limited selection weights weaves Perhaps Only Ths obby Line Model Airplanes Helicopters Boats Cars JAGUAR 40 ARFPIPER CUB J-3/ARF 40 YELLOW ALL WOOD CONSI Span 48 SPWing Span 67 Length 43 a- 57 lbsgWeight 79 lbs Weight 40 lb Length 40Item#867 ltemi865D II FIRE FLY ARF 10-15 2G GLOW INTHE DARK AFTER SUNSETsME Wing Span 49 Length 347 ~i99 Weight 22 Ibs 24 lbs Item #94094t1t SKY BABY-SI ARF 25-35 2C TRAINER SN-I Wing Span 515 Length 36 Weight 33 lb 1teme852 J06I5 DEALERS AND DISTRIBUTDRS INQUIRIES WELCOME QIDERLQNL 1400-2494544 u TECH INFORMATION 1-201-460-0544 OUR FAX LINE 1-2014604770 WE ACCEPT VISA EASTER CARD & DISCOVER CARDS PRICES SUBJECT TO CHANGE WITHOUT NOTICE STORE HOURS MONDAY THRU THURSDAY 10 AM TO 7 PM FRIDAY 10 AM TO 9 PM SATURDAYS 10 AM TO 4 PM PACKAGING AND SHIPPING FEE S5 SD NEW JERSEY RESIDENTS ADD 6% SALES TAX US HOBBY INC 200 MOONACHIE AVE MOONACHIE NJ 07074 US HOBBY INC January1998 107 Simple lightweight radial engine mount Texas Timers fits Russian-made Stels AME 1/2A icc engines Mount screws back engine place stock cover Twelve predrilled holes offer variety engine positions r SKY BABY-L/ARF 25-35 2C TRAINER SFI- Wing Span 515 Length 36 Weight 33 lb Iteme8S4 J6UD5 00 S FEATHER CUT creates new standard ease ana accuracy cutting white blue foam wing cores s off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro. first time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing ng templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 49380 SKYHARBOR WAY FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S & H SKYWATCH 3D Omni-directional Solar Powered Comes Protective Cap usable 29 ounce per square yard plain-weave cloth often used vacuum-bag molding D-boxes Although process sounds exotic difficult actually quite easy cloth wetted out epoxy resin draped over simple form inserted vacuum bag vacuuming process pulls cloth down shape form holds until hardens feel much easier vacuum bag carbon fiber D-box build balsa carbon version will considerably stiffer will have consistent leading edge radius will probably lighter maximum torsional strength carbon cloth laid up fibers arranged 45O reason important carbon cloth balanced weave same number warp fill threads per inch least supplier Composite Structures Technology offers bias-cut carbon cloth minimize waste cutting pieces D-boxes Ready-made carbon fiber D-boxes also available several sources maximum strength minimum weight carbon fiber must used places will good often means using carbon fiber top bottom flanges I-beam some lighter material such balsa Rohacell foam forming web between Most carbon D-box wings use fulldepth spar made way well balsa ribs capped top bottom thin strips carbon carbon spar provides bending strength carbon D-box takes care torsional loads carbon-capped ribs basically support trailing edge covering Since wing inherently stiff dependent covering added rigidity case typical balsa-and-tissue structure Next month well taker closer look working carbon fiber Texas Timers Hank Nystrom branching out addition extensive line clockwork Texas Timers offering few other items power flier 108 Model Aviation Ac4 Kit Features Wire Spoked Wheels Lewis Gun Deardmore Engine Full Cockpit Turnbuckles & Hardware Color Plans Photo Package Scale Documents Book CNC Machined Laser Cut Parts FOR FULL LINE OF KITS AND ARIZONA MODEL AIRCHAFIERS IJ5U EASI tRAY RUAU SCUUlUALE AZ 55OU TO PLACE ORDER CALL 612 314-9937 FAX ORDERS 602 314-3409 Ru & HP ENGINES MADE UN USA MOdERN RIC & Old TiME ViNTAqE SEND $100 FOR OUR NEW 64 PAGE CATALOG OF ENGINES PARTS AccEssoRIEs AND TECHNICAL INFORMATION RJL factory parts source engines RJL Engines German HB Engines A HP Hienberger Engines Engines Kraft 61 ---Conquest 15 -- Taipan 40 Tester McCoy Series 21 Black Head Finned Case Kavan---Forster Engines --- Mutunuc Engines RIL 5ox5 SiDvwM&RR Ci 51112 Phone 626 359-0016 FAX 626 301 0298 Website www mecoa corn l RJL@necoa corn radial mount Russianmade Stels AME 0491061 engines backplate works much like ones have offered past Cox TD 1/2A engines simply unscrew factory backplate cover replace flanged mount see photos mount predrilled 12 equallyspaced holes can orient engine upright vertical sidewinder couple angles between mount slightly heavier backplate replaces total weight installed engine good bit less since can eliminate heavier beam mounts four mounting screws predrilled holes match predrilled TD mounts glass-filled beam mounts making easy try Russian engines Radial Engine Mount sells $5 plus $150 shipping Also Hank soft fuel tubing engine cutoff tubing comes two sizes small tubing has inside diameter 062 inch outside diameter 095 inches roughly 1A6 inch ID 3A2 inch OD large tubing has ID 078 OD 125 1/s inch small tubing perfect 020 engines soft enough work relatively weak pinchoff Tomy timers larger tubing good alternative inch latex tubing Hank reports large tubing will handle bladder pressure blowing up crushes down cleanly standard pinch-off system tubing slightly whitish clear virtually impervious high-nitro fuels well sualight small tubing $1 foot large tubing $125 foot Shipping $150 up 10 feet tubing information order write Hank Texas Timers 3317 Pine Timbers Drive Johnson City TN 37604 TelIFax 423 282-6423 E-mail txtimer@triconnet Yes same address NFFS Membership Office Hank handles volunteer basis well selling timers 110 Model Aviation 0-877-1445 f Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endors.d AMA/RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S MailCODs Visit home page http//wwwdnjeIectronicscom Email david@dnjeIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8YSQ r Campbell Model Supply Glenn Campbell recently sent latest catalog Free Flight products Some basics included Esaki Gampi tissue sheet balsa including 4-6 pound stock plastic props variety sizes Also included couple Indoor kits Japan kits very complete look like good way try Indoor flying winter lOt/2-inch-span models $895 133h-inch models $1795 Also Japan neat folding plastic prop complete shaft washer prop hanger $595 something bit different consider Condenser Plane 13inch-span Indoor model uses tiny electric motor instead usual rubber strip Rather batteries uses condenser store electrical charge Looks like lot fun $2999 Also available series 25inch-span Electric models built lightweight foam use geared Mabuchi motors Models include de Havilland Puss Moth Ryan trainer P-Si Mustang Price $4995 Scale models plus $3 postage copy catalog contact Campbell Model Supply 37742 Carson Farmington Hills MI 48331 Tel/Fax 248 478-7846 ors note Word has reached us latest shipments Cox Tee Dee 049s contain some engines red 051 carburetor housings though engines 049 displacement apparently done use existing 051 parts inventory engines identffiable 049s number 4 stamped engine 049 pistons have groove 051 versi ElevonMixer ELECTRONIC MIXER elevons v-tails flap spoilers Ultra-aimple 54145 Installallon Rugged microproceesor baaed deelgo 100% eleclrorric Irigh ret abtty Simply emoted between servo receiver Featuree eervo reversing low differani mining rates allow tailor mixer need yore model Will overdrive servo t option eve selected wif ft simple dip switch Made USA designed wink modem redo eyst emsAM FM PCM Very low power coneumplion Size 16 n n 04 Weight 025oz Lea radio connector. Pert Ms OA $3096 l. connectors $1655 complete AccessorySwitch ACCESSORY SWITCH give ability add en onoff function chartoet wiltront sacrIfIcing cIte g~ abilfy contral servo AcceuaorySwitch designed awltnt 11030 vofte 45 1030 amp man power disaipetron 01 300 wwtf Modem mioropmceesor-beed design rySwilch very simple 51545 end instatHual connect servo receiver soy chereset chnoee off polrtts oelected simple dip awitcha 16 different value. LED indicator help 5e1545 Unit sttomatrcally 1111 off transmitter off Made USA designed work modem radio aysteme Small size 1ff n 055 n 04 Weight 12 oz Low power correrenpllan Lee radio connector Part No — AS72OU $3466 Corrfef oyof emo ofherproducfo available orplanea care andboafa Call evtte yor detail. GlowDriver ON-BOARD GLOW DRfVER metre sterling easier end safer Keep glow plug hot just englo need Mioroproc esaorbaaed design simply connects between throttle servo receiver Reversi ble seer-selectable oft points Can easily dive two-cylInder twtn-englne models Urrit aelometloatly two off trenernitter off 100% electrorric Made USA designed work modem radio systems Very emaIl size 1 n 12 n 0A Weight 04oz Low power conaumplion Come wth battery/plug wire 15 corstectom cell plug dip Part No OA $3496 Dual-Output ServoReverser January1998 111 71u liffimufe TRUE TURbOjET ENqINE RUNS ON WhITE ONE WhilE oF ThRUST WiTIUll ThROTTLE corjnioL AMA AppRovEd QSL7ZD 11/2 Hour Video Only $2000 post paid $398000 Complete Computer Sophia U5AM PO Box 98- Sierra Madre Ca 91025 USA Telephone 626 359-9527 Fax 626-30 1 -029 Website f httnI/www
Edition: Model Aviation - 1998/01
Page Numbers: 105, 107, 108, 110, 111
FREE FLIGHT DURATION U W1 THE 1998 SYMPO hope have now seen 1997 National Free Flight Society Symposium Like previous Sympos volunteer collaborative effort can enjoy share thanks participated writers artists editors patrons Now its time start work 1998 Sympo NFFS needs help 1998 Sympo editor Dan Tracy soliciting proposals technical articles Send brief description proposed article Daniel Tracy Box 244 Maple Valley WA 98038 Dan needs proposal January 15 1998 proposal accepted finished manuscript will due no later March 15 1998 Sympo articles dont have filled complicated equations computergenerated graphs charts look through few back issues will show wide range possible subjects As writing about anything its best pick topic know very very well Writing Sympo article does take lot work pay nonexistent opportunity duty add cumulative knowledge base Free flight addition technical articles Sympo contains Ten Models Year 1998 Bob Perkins will heading up committee select winners Categories include FIA towline glider FiB Wakefield rubber FiC power Small Gas Large Gas Indoor Small Rubber HLG possible nominations should include description model its contest record reasons nomination photographs model accurate three-view drawings Remember special awards sometimes given things other models such engines timers etc have positive impact Free flight Send nomination Bob Perkins 2285 Pinebrook Road Columbus OH 43220 Another important part Sympo Free flight Hall Fame opportunity honor someone has made outstanding contribution Free Flight designer builder competitor manufacturer administrator Send nominations Hall Fame chairman Jim Haught 4629 E 150 North Anderson IN 46012-9436 Please include biographical sketch nominee along reasons should inducted Hall Fame Photographs would also appreciated Bill Vanderbeek will charge fund-raising again year efforts last year garnered 400 Sympo patrons raising excess $20000 NFFS member should getting letter Bill asking contribution sometime Spring NFFS member can write Bill Vanderbeek 13300 Simon Lane Los Altos Hills CA 94022 about becoming Sympo patron information NFFS membership write NFFS Membership Office 3317 Pine Timbers Drive Johnson City TN 376041404 Dues $20 year ages 19 over junior membership age 18 under $750 Membership includes subscription Free Flight NFFS Digest published 10 times year Please join missed getting 1997 Sympo copies still available cost $20 NFFS members $24 non-members Postage additional $4 anywhere world Fred Terzian handles publications organization can supply price list other NFFS Sympos Free flight books Write NFFS Publications 4858 Moorpark Ave San Jose CA 95129 1998 Sympo scheduled Summer 1998 publication price has set Building Carbon During last 20 years use carbon fiber Free flight models has increased dramatically first few strips used sparingly high-stress areas Next came molded propellers power models spars trailing edges D-boxes carbon Now almost current international class FlA glider FiB Wakefield FiC power models make extensive use carbon-fiber structures Virtually entire wing except ribs now carbon Tailbooms usually rolled tube carbon often used combination very thin aluminum and/or balsa stabilizers becoming blacker carbon replaces balsa Carbon fiber has allowed us build thinner longer stiffer lighter accurate wings ever possible balsa construction carbon-fiber wing actually easier building comparable balsa wing fewer pieces carbon wing comparable balsa wing carbon wings dont change trim balsa wings often January1998 105 Ed Turner holds Eugene Gorbans 86inch-span Fl B carbon-fiber D-box about inch wide wing root latest generation Fl C power models uses carbon-fiber D-box construction allowing wingspans well excess 100 inches Although balsa has dominant building material Free Flight since 1930s carbon fiber offers two important advantages much much stiffer balsa used properly consistent weight Balsa know can vary density around four pounds per cubic foot 20 pounds some disadvantages carbon fiber much dense balsa have use carefully small pieces keep models weight down Carbon fiber readily available balsa Although carbon fiber much expensive balsa tends less waste requires some different skills use successfully Over next couple months will dealing carbon both building carbon D-box wing use carbon fiber augment conventional balsa construction Although carbon fiber available variety forms two suitable uses carbon fiber sheet carbon fiber cloth Like balsa carbon fiber sheet comes variety thicknesses thinnest carbon sheet 001 003 inches often used rib caps strengthening stiffening predominately balsa structures Thicker carbon 007 032 inches used spars trailing edges Carbon up about 014 inches can stripped much like balsa using sharp knife straightedge thicker carbon can also cut way slow process better alternative use homemade saw made Dremel Moto-tool cutoff wheel makes clean-edge cuts minimum amount waste can also order cut-to-size carbon strips several sources Carbon cloth comes limited selection weights weaves Perhaps Only Ths obby Line Model Airplanes Helicopters Boats Cars JAGUAR 40 ARFPIPER CUB J-3/ARF 40 YELLOW ALL WOOD CONSI Span 48 SPWing Span 67 Length 43 a- 57 lbsgWeight 79 lbs Weight 40 lb Length 40Item#867 ltemi865D II FIRE FLY ARF 10-15 2G GLOW INTHE DARK AFTER SUNSETsME Wing Span 49 Length 347 ~i99 Weight 22 Ibs 24 lbs Item #94094t1t SKY BABY-SI ARF 25-35 2C TRAINER SN-I Wing Span 515 Length 36 Weight 33 lb 1teme852 J06I5 DEALERS AND DISTRIBUTDRS INQUIRIES WELCOME QIDERLQNL 1400-2494544 u TECH INFORMATION 1-201-460-0544 OUR FAX LINE 1-2014604770 WE ACCEPT VISA EASTER CARD & DISCOVER CARDS PRICES SUBJECT TO CHANGE WITHOUT NOTICE STORE HOURS MONDAY THRU THURSDAY 10 AM TO 7 PM FRIDAY 10 AM TO 9 PM SATURDAYS 10 AM TO 4 PM PACKAGING AND SHIPPING FEE S5 SD NEW JERSEY RESIDENTS ADD 6% SALES TAX US HOBBY INC 200 MOONACHIE AVE MOONACHIE NJ 07074 US HOBBY INC January1998 107 Simple lightweight radial engine mount Texas Timers fits Russian-made Stels AME 1/2A icc engines Mount screws back engine place stock cover Twelve predrilled holes offer variety engine positions r SKY BABY-L/ARF 25-35 2C TRAINER SFI- Wing Span 515 Length 36 Weight 33 lb Iteme8S4 J6UD5 00 S FEATHER CUT creates new standard ease ana accuracy cutting white blue foam wing cores s off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro. first time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing ng templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 49380 SKYHARBOR WAY FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S & H SKYWATCH 3D Omni-directional Solar Powered Comes Protective Cap usable 29 ounce per square yard plain-weave cloth often used vacuum-bag molding D-boxes Although process sounds exotic difficult actually quite easy cloth wetted out epoxy resin draped over simple form inserted vacuum bag vacuuming process pulls cloth down shape form holds until hardens feel much easier vacuum bag carbon fiber D-box build balsa carbon version will considerably stiffer will have consistent leading edge radius will probably lighter maximum torsional strength carbon cloth laid up fibers arranged 45O reason important carbon cloth balanced weave same number warp fill threads per inch least supplier Composite Structures Technology offers bias-cut carbon cloth minimize waste cutting pieces D-boxes Ready-made carbon fiber D-boxes also available several sources maximum strength minimum weight carbon fiber must used places will good often means using carbon fiber top bottom flanges I-beam some lighter material such balsa Rohacell foam forming web between Most carbon D-box wings use fulldepth spar made way well balsa ribs capped top bottom thin strips carbon carbon spar provides bending strength carbon D-box takes care torsional loads carbon-capped ribs basically support trailing edge covering Since wing inherently stiff dependent covering added rigidity case typical balsa-and-tissue structure Next month well taker closer look working carbon fiber Texas Timers Hank Nystrom branching out addition extensive line clockwork Texas Timers offering few other items power flier 108 Model Aviation Ac4 Kit Features Wire Spoked Wheels Lewis Gun Deardmore Engine Full Cockpit Turnbuckles & Hardware Color Plans Photo Package Scale Documents Book CNC Machined Laser Cut Parts FOR FULL LINE OF KITS AND ARIZONA MODEL AIRCHAFIERS IJ5U EASI tRAY RUAU SCUUlUALE AZ 55OU TO PLACE ORDER CALL 612 314-9937 FAX ORDERS 602 314-3409 Ru & HP ENGINES MADE UN USA MOdERN RIC & Old TiME ViNTAqE SEND $100 FOR OUR NEW 64 PAGE CATALOG OF ENGINES PARTS AccEssoRIEs AND TECHNICAL INFORMATION RJL factory parts source engines RJL Engines German HB Engines A HP Hienberger Engines Engines Kraft 61 ---Conquest 15 -- Taipan 40 Tester McCoy Series 21 Black Head Finned Case Kavan---Forster Engines --- Mutunuc Engines RIL 5ox5 SiDvwM&RR Ci 51112 Phone 626 359-0016 FAX 626 301 0298 Website www mecoa corn l RJL@necoa corn radial mount Russianmade Stels AME 0491061 engines backplate works much like ones have offered past Cox TD 1/2A engines simply unscrew factory backplate cover replace flanged mount see photos mount predrilled 12 equallyspaced holes can orient engine upright vertical sidewinder couple angles between mount slightly heavier backplate replaces total weight installed engine good bit less since can eliminate heavier beam mounts four mounting screws predrilled holes match predrilled TD mounts glass-filled beam mounts making easy try Russian engines Radial Engine Mount sells $5 plus $150 shipping Also Hank soft fuel tubing engine cutoff tubing comes two sizes small tubing has inside diameter 062 inch outside diameter 095 inches roughly 1A6 inch ID 3A2 inch OD large tubing has ID 078 OD 125 1/s inch small tubing perfect 020 engines soft enough work relatively weak pinchoff Tomy timers larger tubing good alternative inch latex tubing Hank reports large tubing will handle bladder pressure blowing up crushes down cleanly standard pinch-off system tubing slightly whitish clear virtually impervious high-nitro fuels well sualight small tubing $1 foot large tubing $125 foot Shipping $150 up 10 feet tubing information order write Hank Texas Timers 3317 Pine Timbers Drive Johnson City TN 37604 TelIFax 423 282-6423 E-mail txtimer@triconnet Yes same address NFFS Membership Office Hank handles volunteer basis well selling timers 110 Model Aviation 0-877-1445 f Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endors.d AMA/RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S MailCODs Visit home page http//wwwdnjeIectronicscom Email david@dnjeIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8YSQ r Campbell Model Supply Glenn Campbell recently sent latest catalog Free Flight products Some basics included Esaki Gampi tissue sheet balsa including 4-6 pound stock plastic props variety sizes Also included couple Indoor kits Japan kits very complete look like good way try Indoor flying winter lOt/2-inch-span models $895 133h-inch models $1795 Also Japan neat folding plastic prop complete shaft washer prop hanger $595 something bit different consider Condenser Plane 13inch-span Indoor model uses tiny electric motor instead usual rubber strip Rather batteries uses condenser store electrical charge Looks like lot fun $2999 Also available series 25inch-span Electric models built lightweight foam use geared Mabuchi motors Models include de Havilland Puss Moth Ryan trainer P-Si Mustang Price $4995 Scale models plus $3 postage copy catalog contact Campbell Model Supply 37742 Carson Farmington Hills MI 48331 Tel/Fax 248 478-7846 ors note Word has reached us latest shipments Cox Tee Dee 049s contain some engines red 051 carburetor housings though engines 049 displacement apparently done use existing 051 parts inventory engines identffiable 049s number 4 stamped engine 049 pistons have groove 051 versi ElevonMixer ELECTRONIC MIXER elevons v-tails flap spoilers Ultra-aimple 54145 Installallon Rugged microproceesor baaed deelgo 100% eleclrorric Irigh ret abtty Simply emoted between servo receiver Featuree eervo reversing low differani mining rates allow tailor mixer need yore model Will overdrive servo t option eve selected wif ft simple dip switch Made USA designed wink modem redo eyst emsAM FM PCM Very low power coneumplion Size 16 n n 04 Weight 025oz Lea radio connector. Pert Ms OA $3096 l. connectors $1655 complete AccessorySwitch ACCESSORY SWITCH give ability add en onoff function chartoet wiltront sacrIfIcing cIte g~ abilfy contral servo AcceuaorySwitch designed awltnt 11030 vofte 45 1030 amp man power disaipetron 01 300 wwtf Modem mioropmceesor-beed design rySwilch very simple 51545 end instatHual connect servo receiver soy chereset chnoee off polrtts oelected simple dip awitcha 16 different value. LED indicator help 5e1545 Unit sttomatrcally 1111 off transmitter off Made USA designed work modem radio aysteme Small size 1ff n 055 n 04 Weight 12 oz Low power correrenpllan Lee radio connector Part No — AS72OU $3466 Corrfef oyof emo ofherproducfo available orplanea care andboafa Call evtte yor detail. GlowDriver ON-BOARD GLOW DRfVER metre sterling easier end safer Keep glow plug hot just englo need Mioroproc esaorbaaed design simply connects between throttle servo receiver Reversi ble seer-selectable oft points Can easily dive two-cylInder twtn-englne models Urrit aelometloatly two off trenernitter off 100% electrorric Made USA designed work modem radio systems Very emaIl size 1 n 12 n 0A Weight 04oz Low power conaumplion Come wth battery/plug wire 15 corstectom cell plug dip Part No OA $3496 Dual-Output ServoReverser January1998 111 71u liffimufe TRUE TURbOjET ENqINE RUNS ON WhITE ONE WhilE oF ThRUST WiTIUll ThROTTLE corjnioL AMA AppRovEd QSL7ZD 11/2 Hour Video Only $2000 post paid $398000 Complete Computer Sophia U5AM PO Box 98- Sierra Madre Ca 91025 USA Telephone 626 359-9527 Fax 626-30 1 -029 Website f httnI/www
Edition: Model Aviation - 1998/01
Page Numbers: 105, 107, 108, 110, 111
FREE FLIGHT DURATION U W1 THE 1998 SYMPO hope have now seen 1997 National Free Flight Society Symposium Like previous Sympos volunteer collaborative effort can enjoy share thanks participated writers artists editors patrons Now its time start work 1998 Sympo NFFS needs help 1998 Sympo editor Dan Tracy soliciting proposals technical articles Send brief description proposed article Daniel Tracy Box 244 Maple Valley WA 98038 Dan needs proposal January 15 1998 proposal accepted finished manuscript will due no later March 15 1998 Sympo articles dont have filled complicated equations computergenerated graphs charts look through few back issues will show wide range possible subjects As writing about anything its best pick topic know very very well Writing Sympo article does take lot work pay nonexistent opportunity duty add cumulative knowledge base Free flight addition technical articles Sympo contains Ten Models Year 1998 Bob Perkins will heading up committee select winners Categories include FIA towline glider FiB Wakefield rubber FiC power Small Gas Large Gas Indoor Small Rubber HLG possible nominations should include description model its contest record reasons nomination photographs model accurate three-view drawings Remember special awards sometimes given things other models such engines timers etc have positive impact Free flight Send nomination Bob Perkins 2285 Pinebrook Road Columbus OH 43220 Another important part Sympo Free flight Hall Fame opportunity honor someone has made outstanding contribution Free Flight designer builder competitor manufacturer administrator Send nominations Hall Fame chairman Jim Haught 4629 E 150 North Anderson IN 46012-9436 Please include biographical sketch nominee along reasons should inducted Hall Fame Photographs would also appreciated Bill Vanderbeek will charge fund-raising again year efforts last year garnered 400 Sympo patrons raising excess $20000 NFFS member should getting letter Bill asking contribution sometime Spring NFFS member can write Bill Vanderbeek 13300 Simon Lane Los Altos Hills CA 94022 about becoming Sympo patron information NFFS membership write NFFS Membership Office 3317 Pine Timbers Drive Johnson City TN 376041404 Dues $20 year ages 19 over junior membership age 18 under $750 Membership includes subscription Free Flight NFFS Digest published 10 times year Please join missed getting 1997 Sympo copies still available cost $20 NFFS members $24 non-members Postage additional $4 anywhere world Fred Terzian handles publications organization can supply price list other NFFS Sympos Free flight books Write NFFS Publications 4858 Moorpark Ave San Jose CA 95129 1998 Sympo scheduled Summer 1998 publication price has set Building Carbon During last 20 years use carbon fiber Free flight models has increased dramatically first few strips used sparingly high-stress areas Next came molded propellers power models spars trailing edges D-boxes carbon Now almost current international class FlA glider FiB Wakefield FiC power models make extensive use carbon-fiber structures Virtually entire wing except ribs now carbon Tailbooms usually rolled tube carbon often used combination very thin aluminum and/or balsa stabilizers becoming blacker carbon replaces balsa Carbon fiber has allowed us build thinner longer stiffer lighter accurate wings ever possible balsa construction carbon-fiber wing actually easier building comparable balsa wing fewer pieces carbon wing comparable balsa wing carbon wings dont change trim balsa wings often January1998 105 Ed Turner holds Eugene Gorbans 86inch-span Fl B carbon-fiber D-box about inch wide wing root latest generation Fl C power models uses carbon-fiber D-box construction allowing wingspans well excess 100 inches Although balsa has dominant building material Free Flight since 1930s carbon fiber offers two important advantages much much stiffer balsa used properly consistent weight Balsa know can vary density around four pounds per cubic foot 20 pounds some disadvantages carbon fiber much dense balsa have use carefully small pieces keep models weight down Carbon fiber readily available balsa Although carbon fiber much expensive balsa tends less waste requires some different skills use successfully Over next couple months will dealing carbon both building carbon D-box wing use carbon fiber augment conventional balsa construction Although carbon fiber available variety forms two suitable uses carbon fiber sheet carbon fiber cloth Like balsa carbon fiber sheet comes variety thicknesses thinnest carbon sheet 001 003 inches often used rib caps strengthening stiffening predominately balsa structures Thicker carbon 007 032 inches used spars trailing edges Carbon up about 014 inches can stripped much like balsa using sharp knife straightedge thicker carbon can also cut way slow process better alternative use homemade saw made Dremel Moto-tool cutoff wheel makes clean-edge cuts minimum amount waste can also order cut-to-size carbon strips several sources Carbon cloth comes limited selection weights weaves Perhaps Only Ths obby Line Model Airplanes Helicopters Boats Cars JAGUAR 40 ARFPIPER CUB J-3/ARF 40 YELLOW ALL WOOD CONSI Span 48 SPWing Span 67 Length 43 a- 57 lbsgWeight 79 lbs Weight 40 lb Length 40Item#867 ltemi865D II FIRE FLY ARF 10-15 2G GLOW INTHE DARK AFTER SUNSETsME Wing Span 49 Length 347 ~i99 Weight 22 Ibs 24 lbs Item #94094t1t SKY BABY-SI ARF 25-35 2C TRAINER SN-I Wing Span 515 Length 36 Weight 33 lb 1teme852 J06I5 DEALERS AND DISTRIBUTDRS INQUIRIES WELCOME QIDERLQNL 1400-2494544 u TECH INFORMATION 1-201-460-0544 OUR FAX LINE 1-2014604770 WE ACCEPT VISA EASTER CARD & DISCOVER CARDS PRICES SUBJECT TO CHANGE WITHOUT NOTICE STORE HOURS MONDAY THRU THURSDAY 10 AM TO 7 PM FRIDAY 10 AM TO 9 PM SATURDAYS 10 AM TO 4 PM PACKAGING AND SHIPPING FEE S5 SD NEW JERSEY RESIDENTS ADD 6% SALES TAX US HOBBY INC 200 MOONACHIE AVE MOONACHIE NJ 07074 US HOBBY INC January1998 107 Simple lightweight radial engine mount Texas Timers fits Russian-made Stels AME 1/2A icc engines Mount screws back engine place stock cover Twelve predrilled holes offer variety engine positions r SKY BABY-L/ARF 25-35 2C TRAINER SFI- Wing Span 515 Length 36 Weight 33 lb Iteme8S4 J6UD5 00 S FEATHER CUT creates new standard ease ana accuracy cutting white blue foam wing cores s off Precise single wire tracking concert micro-adjustable balance weights guided exclusive three-point tracking system guarantees ripple-free surfaces No trailing edge burn-out common two wire systems Couple FEATHER CUT Tekoas THERMAL GENERATOR fool proof temperature control youll Pro. first time out Cuts straight taper wings fins stabilizers matically ts tape edge workbench dining table stores its own heavy duty mailing tube lete kit anodized plated components no hardware store trips ructions include cutting first wing ng templates old Bow 40 52 Available Power supply required Guaranteed out perform rest Simply best TEKOA THE CENTER OF DESIGN 49380 SKYHARBOR WAY FEATHER CUT $14950 S & H THERMAL GENERATOR Power Supply $11950 S & H SKYWATCH 3D Omni-directional Solar Powered Comes Protective Cap usable 29 ounce per square yard plain-weave cloth often used vacuum-bag molding D-boxes Although process sounds exotic difficult actually quite easy cloth wetted out epoxy resin draped over simple form inserted vacuum bag vacuuming process pulls cloth down shape form holds until hardens feel much easier vacuum bag carbon fiber D-box build balsa carbon version will considerably stiffer will have consistent leading edge radius will probably lighter maximum torsional strength carbon cloth laid up fibers arranged 45O reason important carbon cloth balanced weave same number warp fill threads per inch least supplier Composite Structures Technology offers bias-cut carbon cloth minimize waste cutting pieces D-boxes Ready-made carbon fiber D-boxes also available several sources maximum strength minimum weight carbon fiber must used places will good often means using carbon fiber top bottom flanges I-beam some lighter material such balsa Rohacell foam forming web between Most carbon D-box wings use fulldepth spar made way well balsa ribs capped top bottom thin strips carbon carbon spar provides bending strength carbon D-box takes care torsional loads carbon-capped ribs basically support trailing edge covering Since wing inherently stiff dependent covering added rigidity case typical balsa-and-tissue structure Next month well taker closer look working carbon fiber Texas Timers Hank Nystrom branching out addition extensive line clockwork Texas Timers offering few other items power flier 108 Model Aviation Ac4 Kit Features Wire Spoked Wheels Lewis Gun Deardmore Engine Full Cockpit Turnbuckles & Hardware Color Plans Photo Package Scale Documents Book CNC Machined Laser Cut Parts FOR FULL LINE OF KITS AND ARIZONA MODEL AIRCHAFIERS IJ5U EASI tRAY RUAU SCUUlUALE AZ 55OU TO PLACE ORDER CALL 612 314-9937 FAX ORDERS 602 314-3409 Ru & HP ENGINES MADE UN USA MOdERN RIC & Old TiME ViNTAqE SEND $100 FOR OUR NEW 64 PAGE CATALOG OF ENGINES PARTS AccEssoRIEs AND TECHNICAL INFORMATION RJL factory parts source engines RJL Engines German HB Engines A HP Hienberger Engines Engines Kraft 61 ---Conquest 15 -- Taipan 40 Tester McCoy Series 21 Black Head Finned Case Kavan---Forster Engines --- Mutunuc Engines RIL 5ox5 SiDvwM&RR Ci 51112 Phone 626 359-0016 FAX 626 301 0298 Website www mecoa corn l RJL@necoa corn radial mount Russianmade Stels AME 0491061 engines backplate works much like ones have offered past Cox TD 1/2A engines simply unscrew factory backplate cover replace flanged mount see photos mount predrilled 12 equallyspaced holes can orient engine upright vertical sidewinder couple angles between mount slightly heavier backplate replaces total weight installed engine good bit less since can eliminate heavier beam mounts four mounting screws predrilled holes match predrilled TD mounts glass-filled beam mounts making easy try Russian engines Radial Engine Mount sells $5 plus $150 shipping Also Hank soft fuel tubing engine cutoff tubing comes two sizes small tubing has inside diameter 062 inch outside diameter 095 inches roughly 1A6 inch ID 3A2 inch OD large tubing has ID 078 OD 125 1/s inch small tubing perfect 020 engines soft enough work relatively weak pinchoff Tomy timers larger tubing good alternative inch latex tubing Hank reports large tubing will handle bladder pressure blowing up crushes down cleanly standard pinch-off system tubing slightly whitish clear virtually impervious high-nitro fuels well sualight small tubing $1 foot large tubing $125 foot Shipping $150 up 10 feet tubing information order write Hank Texas Timers 3317 Pine Timbers Drive Johnson City TN 37604 TelIFax 423 282-6423 E-mail txtimer@triconnet Yes same address NFFS Membership Office Hank handles volunteer basis well selling timers 110 Model Aviation 0-877-1445 f Service & Repairs Most Radio Control Systems Utilizing Calibrated Test Equipment & Spectrum Analyzers Endors.d AMA/RCMA Sticker Station #105 Futaba Airtronics JR Ace HiTec Tower Cirrus World Engines & WE USE GENUINE FACTORY REPLACEMENT PARTS Complete 1991 Narrow Banding & Upgrades RCD / HITEC R/C DEALER FCC Licensed Speed Control Repairs Quality Service Fast Turn Around Shipping & Insurance Extra U S MailCODs Visit home page http//wwwdnjeIectronicscom Email david@dnjeIectronicscom jayne@dnjelectronics AMA #256123ARRLWB8YSQ r Campbell Model Supply Glenn Campbell recently sent latest catalog Free Flight products Some basics included Esaki Gampi tissue sheet balsa including 4-6 pound stock plastic props variety sizes Also included couple Indoor kits Japan kits very complete look like good way try Indoor flying winter lOt/2-inch-span models $895 133h-inch models $1795 Also Japan neat folding plastic prop complete shaft washer prop hanger $595 something bit different consider Condenser Plane 13inch-span Indoor model uses tiny electric motor instead usual rubber strip Rather batteries uses condenser store electrical charge Looks like lot fun $2999 Also available series 25inch-span Electric models built lightweight foam use geared Mabuchi motors Models include de Havilland Puss Moth Ryan trainer P-Si Mustang Price $4995 Scale models plus $3 postage copy catalog contact Campbell Model Supply 37742 Carson Farmington Hills MI 48331 Tel/Fax 248 478-7846 ors note Word has reached us latest shipments Cox Tee Dee 049s contain some engines red 051 carburetor housings though engines 049 displacement apparently done use existing 051 parts inventory engines identffiable 049s number 4 stamped engine 049 pistons have groove 051 versi ElevonMixer ELECTRONIC MIXER elevons v-tails flap spoilers Ultra-aimple 54145 Installallon Rugged microproceesor baaed deelgo 100% eleclrorric Irigh ret abtty Simply emoted between servo receiver Featuree eervo reversing low differani mining rates allow tailor mixer need yore model Will overdrive servo t option eve selected wif ft simple dip switch Made USA designed wink modem redo eyst emsAM FM PCM Very low power coneumplion Size 16 n n 04 Weight 025oz Lea radio connector. Pert Ms OA $3096 l. connectors $1655 complete AccessorySwitch ACCESSORY SWITCH give ability add en onoff function chartoet wiltront sacrIfIcing cIte g~ abilfy contral servo AcceuaorySwitch designed awltnt 11030 vofte 45 1030 amp man power disaipetron 01 300 wwtf Modem mioropmceesor-beed design rySwilch very simple 51545 end instatHual connect servo receiver soy chereset chnoee off polrtts oelected simple dip awitcha 16 different value. LED indicator help 5e1545 Unit sttomatrcally 1111 off transmitter off Made USA designed work modem radio aysteme Small size 1ff n 055 n 04 Weight 12 oz Low power correrenpllan Lee radio connector Part No — AS72OU $3466 Corrfef oyof emo ofherproducfo available orplanea care andboafa Call evtte yor detail. GlowDriver ON-BOARD GLOW DRfVER metre sterling easier end safer Keep glow plug hot just englo need Mioroproc esaorbaaed design simply connects between throttle servo receiver Reversi ble seer-selectable oft points Can easily dive two-cylInder twtn-englne models Urrit aelometloatly two off trenernitter off 100% electrorric Made USA designed work modem radio systems Very emaIl size 1 n 12 n 0A Weight 04oz Low power conaumplion Come wth battery/plug wire 15 corstectom cell plug dip Part No OA $3496 Dual-Output ServoReverser January1998 111 71u liffimufe TRUE TURbOjET ENqINE RUNS ON WhITE ONE WhilE oF ThRUST WiTIUll ThROTTLE corjnioL AMA AppRovEd QSL7ZD 11/2 Hour Video Only $2000 post paid $398000 Complete Computer Sophia U5AM PO Box 98- Sierra Madre Ca 91025 USA Telephone 626 359-9527 Fax 626-30 1 -029 Website f httnI/www