I F REEFLIGHT GAINING popularity free flight contests Hand-Held Catapult Glider event Although rules vary different regions country basics tend similar single loop rubberperhaps eight nine inches maximum lengthand unrestricted model design Scoring standard Hand-Launched Gliderie best three six flights count twominute max Vic Nipperts Zip-A-Do Too won years Nationals East Coast Free Flight Championships Vic adds design also has won number Sky-Scraper monthly contests unusual feature Zip-A-Do Too least compared models Ive seen launch grip under center-of-gravity rather behind stab catapult hook built nosea frequent universal position Ive seen models multiple hooks presumably get best launch climb pattern particular design wing /16 quarter-grain balsa tapered /16 tips Vic finished model coat sanding sealer followed two coats Sig Lite-Coat gave stab rudder just single coat Lite-Coat used three coats DURATION 1 fuselage center-of gravity about 60% All-up weight 18 grams build couple time because thermaling ability Vic writes No dethermalizer DT shown plans assume Vic doesnt use seems shame lose good models though theres simple quick solution flap DT takes five minutes install saves having replace lost models make flap DT need strip aluminum cut horizontally drink can Leave natural curl can Trim two inches strips length profile fuselage nose Epoxy back end strip fuselage leave room snuffer tube orient strip curls out toward wing tip epoxy dries simply rubberband free end strip fuselage DT fuseand youre done fuse burns through rubberband flap will open because spring action curl strip model will come down slow spiral Its good idea try out DT over tall grass weeds case descent steeper youd like simply trim bit off flap try again works number Cleveland-area modelers use method report definite results Catapult Over past couple years Ive experimented catapult gliders different sizes both have competitive airplanes myself test models seven-year-old son Robby build Ive tried very small models better blast orbit ultraslick MonoKoted models higher launch altitude very thin wings again blast high possible After getting whipped enough times making notes other peoples successful designs Ive drawn few conclusions Thin wings just dont get appears catapult gliders must fly up wing speak Most successful models like Vic Nipperts use 3/rn wings high point 30% range moderately light finish models seem have about 16-in wingspan weigh about 18 20 grams have center-of gravity about 65% built some models size lighter weight got much less height launch small models can really climb very sensitive launch well 88 Model Aviation Yorks Jack Nix shows battle scars mud helping free stuck cars 92 USOC held AMAs Muncie site Hand-Held Catapult Glider 16-inchers upper right best 13 inches works well Juniors Smaller models left sensitive Continued poge 147 Clevelands Tad Jones nephew prepare Brooklyn Sky-Scraper John Carbone Michigans Denny Dock holds Ex-Cel Gas CIA meet Wright- launches 300-sq-in Bewitched 1200-square-inch McCoy 60-powered Patterson AFB Cox Tee Dee power Chicopee Nationals Shuriken power Nostalgia-legal Texan comes life RC HolicopterIJolly Continued page 82 aluminum mounting plates also get enough screws assemble frames enough washers underpin screwheads rest Kalt Alpha II parts youll have add make helicopter six-page instruction manual included Assembly very easy carbon pieces drawn CAD computer-assisted drawing machine drilled routed NC numerically controlled machine unit truly precision made everything fitting exactly hat off Dan Laura having produced such high-quality product successfully brought market frames $250not inexpensive certainly worth consider high quality potentially low sales volume Carbon fiber latest thing FAI crowd enables make lighter stiffer machine virtually bulletproof Contact Vertical Flight Tech nologies 1527 SW 116 Ave Pembroke Pines FL 33025 Het-X Corporation became friends AE Stanley putting Top Gun Heli Tournament Stan told worked Hel-X painted canopies told Stan finishing X-Cell 60 would like try Hel-Xs prefinished canopies very pleased canopy company sent Its white three-color neon black splatter finish tail fins match cabin well assembled latching button preinstalled friends have seen canopy have remarked favorably Hel-X does excellent work very fair price Contact Hel-X 558 Highland Aye Upper Montclair NJ 07043 ask catalog Besides custom painting company offers lot neat accessones LJMP Baron Canopy As know have enjoyed Baron Alpha II very much fact am finishing Gas version right now fancy lines Alpha II canopy have found ABS plastic cracks age particularly like clumsy starter want fiberglass Alpha II replacement canopy contact LJMP 714 826-6861 canopy $75 includes molded windscreen shown wraps up month hope youre getting some flying hope got everything wanted Christmas Happy 1993 BCNU SINGE 1936 FF DurationlHaught Continued page 88 being sensitive adjustment point thought might good Robby fly hard time achieving consistency Juniors might want try model thats about 80% normal size wings can built Vs-in sheet bit easier novice shape larger sizes Such model large enough give some real performance less sensitive areas 10- 12-in-span terrors tried earlier Robby able handle model size no problems its step above Crusher beginners model performance See January 1992 column information about Crusher Northern Ohio Free flight Association NOFFA offers interesting variation traditional best-three-of-six scoring method involves incremental max times starting 30 seconds idea flier qualifies higher max making previous time limited number attempts say three level Thus track-and-field event fliers continue until fail particular max time goal being progress final 60-second max point flyoffs begin flyoffs too could stair-stepped time required NOFFAs rationale using system also uses standard HLG encourage consistency reduce luck factor giving fliers chance win also can prove chastening Robby has soundly thrashed two years row much delight Catapult Glider eliminates two variables can influence contest outcomes HLG Physical ability isnt important uses same power plant area well others event quite com petitiveand Tad Jones kids event old men no arms Now looking said National Free Flight Society NFFS re structuring Voting new set four regional vice presidents NFFS has completed Hector Diez West Region VP Jim OReilly will handle Central Region Louis Joyner will cover South east yours truly represents Northeast writing early October 1992 new president replace outgoing Tony Italiano has yet elected Suitable candidates have difficult come anticipated will rectified time new officers begin work January 1 1993 part major NFFS overhaul includes revision bylaws realignment management team believe have good group vice presidents entirely capable serving Free Flights needs however PRECISION MODEL PRODUCTS 64qqf Made U S FFX BARSTOCK ALUMINUM SPINNERS 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $300 Per Spinner 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 February 1993 147 RetailApprox Part No ePriceWeight TT1508.. 1112S1395058oz TT175B 149509502 fl200B159510002 TT225B . 2-1/41695150oz fl226B.. 2-1/4 FAt.1895150oz T12508 12189519002 TT251B. 2112 FAt2095170oz TT275B 2295220oz fl276B.. 2314 FAI249520002 fl300B269526002 fl301B FAll289525002 T1325B.. 31/436953400z T1350B.. 31/2499547002 TT375B . 33/45995520at TT400B4699557002 PROP NUT ADAPTORS V RetailApprox Part NoSizePriceWeight T1140A 8S495061 02 11147-A1/428/7mm495 . 061 02 TT610A6x 10mm495 06302 TT710A7 x 10mm49508202 TT516A .5/162449507602 TT-518A5/1624/8mm495 076 02 TT810A .8 x 1 0mm4 95076 02 TT825A8 x 125mm495 075 02 TT375A3/024.595117 oz TT125AlOx 125mm595 11502 TYPHOON state-of-the art design pattern competition Plug-in adjustable wing stab panels Light weight att balsa construction Plans 909 sq 1000 sq versions show alt formers ribs Wing area909 sqin/lODO sqin Wing span n/73 1/2 Length n/71 1/2 Power 120 four stroke 60 two stroke Plans-909 sq versionIwo sheets$1495 Plans-1000 sqin versioutwo sheds$1495 Fiberglass cowl$1895 Clear canopy$1495 PLUG-IN ADJUSTABLE STAB KIT Set includes two glass filled nylon adjusters aluminum tube phenolic socket set Provides easy removal stab panels micro adjustment stab incidence$895 WING TUBE AND SOCKET SETS Aluminum alloy tubing plug-in wings Special sI p fit phenolic sockets bu Id wing panels inctud edThree standard sizes ava able special lengths order 7/8 dia x 2 ftprecision fit$1095 1 1/4dia x2ft$995 11/2 dia x 3 ft$1495 PLUG-IN WING ADJUSTER KIT Set includes two glass filled nylon adjusters key wing panel front rear allow make micro adjustments straight flight Order two sets incidence adjustment both wing panels desired$795 THE Provides solid support accurate building Rugged construction 7 ply aircraft plywood Regular fuselages up 6-1/4 wide Jumbo fuselages up 9-1/4 wide Use own building board work bench base mount jig stations Uni-Strut guide mis versatile set-up Contains complete hardware instructions Box 4 Standard Jig Stations$1995 Box 4 Jumbo Jig Stations$2195 Two 5 ft Guide Raits & mounting nuts$2295 need help form input members region cant serve dont know what want next few years will critical Free Flights long-term future behooves us assume active role deciding what direction well take No can handle free flight business better free fighters So grab pen pick up phone corral us flying field let voice heard An 010 event Ive number requests plans little Grave Digger model shown September 1992 column Now Bob Stalick has joined fun Bob has built lost model vintage PeeWee B design has also proposed set rules much like used PeeWee 30 010 event think Bobs rules bit harsh propose following 1 No model di mension larger 25 2 Ten-second engine runno mechanical timers allowed Overruns penalized five seconds flight time second engine run over 10 3 Two-minute max three minutes flyoffs no overrun provision Its intent try out unofficial event local contests next springit should blast Id like get some input rules proposed better leave model size unrestricted better have minimum-weight rule Any other factors Ive neglected meantime dig out old 010 buy new take few hours get started truly fun airplane Nelson/Tee Dee glow head continue get reports modelers have tried Kustom Kraftsmanship/Nelson glow head latest such comes Virginias Nat Comfort has some interesting observations Ive playing around since last winter tried head three different engines found would run right plug shimsame stock head Note KKs instructions suggest head shim 5% nitro over 20% experience AT LAST Z-BEST ENGINE CLEANER Lii $2s&HCAg25%tax An Effective High Tech Engine Cleaner RIC Engines Removes Barsedon Fact Residue Encrusted Carbon Build-up Any Bare Metal Engine Outside Inside Z-BEST Cleans Mufflers Tuned Pipes Headers 1i0d&at &ruh&ittg Wont Harm Dincolor Metal Four Ounces Will Clean 10-15 Engines Cleun Engines Rnn Cooler und Lust Longer Dint send check money BORNE HOBBIES order ask local3764 30th St Sun Diego CA 92104 dealerM/C 800-382-0505 VISA similar Nats others Ive heard thisJH noticed no appreciable increase rpm However doesnt matter point no drop rpm cost plugs enough reason use adapter biggest difference have found needle valve action needle works much smoothly easier get solid steady setting Im told Doug Galbreath because heat range Nelson plug congruent pressures produced Tee Dee Nat has also flown new t/2A prop Potis Hangar Products instal lation included Nelson head reports following ran CS APC 6 x 2 got 29500 rpm put Potis prop got 27000 airplane went 100 feet higher Poti propso much tach readings Nat has good point applies engine/prop combinations Static figures rpm useful poinL What really matters altitude gained fastrevving prop doesnt necessarily mean extra height Theres always saddle point rpm gains become less effective must determined engine also prop changes affect model per formance Some props make lots noise sounding impressive ground fan air Others turn less static rpm unload better air giving better overall result way tell prop/engine right model fly port & Scale/Warner Continued page 87 videotape 1992 Flying Aces Club Nats ready Dean McGinnes Co have done video honors last couple FAC Nats have made home movie available couldnt make person mixed bag some IT YOURSELF Easyto use Save Money Save Time As low $995 -sy write CallSmithy Dept MA Lathe Drill 1-800-345-6342F 2nd Street Ask operator MAThe Dalles OR 97050 148 Model Aviation ude $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 C Fax 904 494-0207
Edition: Model Aviation - 1993/02
Page Numbers: 88, 147, 148
I F REEFLIGHT GAINING popularity free flight contests Hand-Held Catapult Glider event Although rules vary different regions country basics tend similar single loop rubberperhaps eight nine inches maximum lengthand unrestricted model design Scoring standard Hand-Launched Gliderie best three six flights count twominute max Vic Nipperts Zip-A-Do Too won years Nationals East Coast Free Flight Championships Vic adds design also has won number Sky-Scraper monthly contests unusual feature Zip-A-Do Too least compared models Ive seen launch grip under center-of-gravity rather behind stab catapult hook built nosea frequent universal position Ive seen models multiple hooks presumably get best launch climb pattern particular design wing /16 quarter-grain balsa tapered /16 tips Vic finished model coat sanding sealer followed two coats Sig Lite-Coat gave stab rudder just single coat Lite-Coat used three coats DURATION 1 fuselage center-of gravity about 60% All-up weight 18 grams build couple time because thermaling ability Vic writes No dethermalizer DT shown plans assume Vic doesnt use seems shame lose good models though theres simple quick solution flap DT takes five minutes install saves having replace lost models make flap DT need strip aluminum cut horizontally drink can Leave natural curl can Trim two inches strips length profile fuselage nose Epoxy back end strip fuselage leave room snuffer tube orient strip curls out toward wing tip epoxy dries simply rubberband free end strip fuselage DT fuseand youre done fuse burns through rubberband flap will open because spring action curl strip model will come down slow spiral Its good idea try out DT over tall grass weeds case descent steeper youd like simply trim bit off flap try again works number Cleveland-area modelers use method report definite results Catapult Over past couple years Ive experimented catapult gliders different sizes both have competitive airplanes myself test models seven-year-old son Robby build Ive tried very small models better blast orbit ultraslick MonoKoted models higher launch altitude very thin wings again blast high possible After getting whipped enough times making notes other peoples successful designs Ive drawn few conclusions Thin wings just dont get appears catapult gliders must fly up wing speak Most successful models like Vic Nipperts use 3/rn wings high point 30% range moderately light finish models seem have about 16-in wingspan weigh about 18 20 grams have center-of gravity about 65% built some models size lighter weight got much less height launch small models can really climb very sensitive launch well 88 Model Aviation Yorks Jack Nix shows battle scars mud helping free stuck cars 92 USOC held AMAs Muncie site Hand-Held Catapult Glider 16-inchers upper right best 13 inches works well Juniors Smaller models left sensitive Continued poge 147 Clevelands Tad Jones nephew prepare Brooklyn Sky-Scraper John Carbone Michigans Denny Dock holds Ex-Cel Gas CIA meet Wright- launches 300-sq-in Bewitched 1200-square-inch McCoy 60-powered Patterson AFB Cox Tee Dee power Chicopee Nationals Shuriken power Nostalgia-legal Texan comes life RC HolicopterIJolly Continued page 82 aluminum mounting plates also get enough screws assemble frames enough washers underpin screwheads rest Kalt Alpha II parts youll have add make helicopter six-page instruction manual included Assembly very easy carbon pieces drawn CAD computer-assisted drawing machine drilled routed NC numerically controlled machine unit truly precision made everything fitting exactly hat off Dan Laura having produced such high-quality product successfully brought market frames $250not inexpensive certainly worth consider high quality potentially low sales volume Carbon fiber latest thing FAI crowd enables make lighter stiffer machine virtually bulletproof Contact Vertical Flight Tech nologies 1527 SW 116 Ave Pembroke Pines FL 33025 Het-X Corporation became friends AE Stanley putting Top Gun Heli Tournament Stan told worked Hel-X painted canopies told Stan finishing X-Cell 60 would like try Hel-Xs prefinished canopies very pleased canopy company sent Its white three-color neon black splatter finish tail fins match cabin well assembled latching button preinstalled friends have seen canopy have remarked favorably Hel-X does excellent work very fair price Contact Hel-X 558 Highland Aye Upper Montclair NJ 07043 ask catalog Besides custom painting company offers lot neat accessones LJMP Baron Canopy As know have enjoyed Baron Alpha II very much fact am finishing Gas version right now fancy lines Alpha II canopy have found ABS plastic cracks age particularly like clumsy starter want fiberglass Alpha II replacement canopy contact LJMP 714 826-6861 canopy $75 includes molded windscreen shown wraps up month hope youre getting some flying hope got everything wanted Christmas Happy 1993 BCNU SINGE 1936 FF DurationlHaught Continued page 88 being sensitive adjustment point thought might good Robby fly hard time achieving consistency Juniors might want try model thats about 80% normal size wings can built Vs-in sheet bit easier novice shape larger sizes Such model large enough give some real performance less sensitive areas 10- 12-in-span terrors tried earlier Robby able handle model size no problems its step above Crusher beginners model performance See January 1992 column information about Crusher Northern Ohio Free flight Association NOFFA offers interesting variation traditional best-three-of-six scoring method involves incremental max times starting 30 seconds idea flier qualifies higher max making previous time limited number attempts say three level Thus track-and-field event fliers continue until fail particular max time goal being progress final 60-second max point flyoffs begin flyoffs too could stair-stepped time required NOFFAs rationale using system also uses standard HLG encourage consistency reduce luck factor giving fliers chance win also can prove chastening Robby has soundly thrashed two years row much delight Catapult Glider eliminates two variables can influence contest outcomes HLG Physical ability isnt important uses same power plant area well others event quite com petitiveand Tad Jones kids event old men no arms Now looking said National Free Flight Society NFFS re structuring Voting new set four regional vice presidents NFFS has completed Hector Diez West Region VP Jim OReilly will handle Central Region Louis Joyner will cover South east yours truly represents Northeast writing early October 1992 new president replace outgoing Tony Italiano has yet elected Suitable candidates have difficult come anticipated will rectified time new officers begin work January 1 1993 part major NFFS overhaul includes revision bylaws realignment management team believe have good group vice presidents entirely capable serving Free Flights needs however PRECISION MODEL PRODUCTS 64qqf Made U S FFX BARSTOCK ALUMINUM SPINNERS 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $300 Per Spinner 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 February 1993 147 RetailApprox Part No ePriceWeight TT1508.. 1112S1395058oz TT175B 149509502 fl200B159510002 TT225B . 2-1/41695150oz fl226B.. 2-1/4 FAt.1895150oz T12508 12189519002 TT251B. 2112 FAt2095170oz TT275B 2295220oz fl276B.. 2314 FAI249520002 fl300B269526002 fl301B FAll289525002 T1325B.. 31/436953400z T1350B.. 31/2499547002 TT375B . 33/45995520at TT400B4699557002 PROP NUT ADAPTORS V RetailApprox Part NoSizePriceWeight T1140A 8S495061 02 11147-A1/428/7mm495 . 061 02 TT610A6x 10mm495 06302 TT710A7 x 10mm49508202 TT516A .5/162449507602 TT-518A5/1624/8mm495 076 02 TT810A .8 x 1 0mm4 95076 02 TT825A8 x 125mm495 075 02 TT375A3/024.595117 oz TT125AlOx 125mm595 11502 TYPHOON state-of-the art design pattern competition Plug-in adjustable wing stab panels Light weight att balsa construction Plans 909 sq 1000 sq versions show alt formers ribs Wing area909 sqin/lODO sqin Wing span n/73 1/2 Length n/71 1/2 Power 120 four stroke 60 two stroke Plans-909 sq versionIwo sheets$1495 Plans-1000 sqin versioutwo sheds$1495 Fiberglass cowl$1895 Clear canopy$1495 PLUG-IN ADJUSTABLE STAB KIT Set includes two glass filled nylon adjusters aluminum tube phenolic socket set Provides easy removal stab panels micro adjustment stab incidence$895 WING TUBE AND SOCKET SETS Aluminum alloy tubing plug-in wings Special sI p fit phenolic sockets bu Id wing panels inctud edThree standard sizes ava able special lengths order 7/8 dia x 2 ftprecision fit$1095 1 1/4dia x2ft$995 11/2 dia x 3 ft$1495 PLUG-IN WING ADJUSTER KIT Set includes two glass filled nylon adjusters key wing panel front rear allow make micro adjustments straight flight Order two sets incidence adjustment both wing panels desired$795 THE Provides solid support accurate building Rugged construction 7 ply aircraft plywood Regular fuselages up 6-1/4 wide Jumbo fuselages up 9-1/4 wide Use own building board work bench base mount jig stations Uni-Strut guide mis versatile set-up Contains complete hardware instructions Box 4 Standard Jig Stations$1995 Box 4 Jumbo Jig Stations$2195 Two 5 ft Guide Raits & mounting nuts$2295 need help form input members region cant serve dont know what want next few years will critical Free Flights long-term future behooves us assume active role deciding what direction well take No can handle free flight business better free fighters So grab pen pick up phone corral us flying field let voice heard An 010 event Ive number requests plans little Grave Digger model shown September 1992 column Now Bob Stalick has joined fun Bob has built lost model vintage PeeWee B design has also proposed set rules much like used PeeWee 30 010 event think Bobs rules bit harsh propose following 1 No model di mension larger 25 2 Ten-second engine runno mechanical timers allowed Overruns penalized five seconds flight time second engine run over 10 3 Two-minute max three minutes flyoffs no overrun provision Its intent try out unofficial event local contests next springit should blast Id like get some input rules proposed better leave model size unrestricted better have minimum-weight rule Any other factors Ive neglected meantime dig out old 010 buy new take few hours get started truly fun airplane Nelson/Tee Dee glow head continue get reports modelers have tried Kustom Kraftsmanship/Nelson glow head latest such comes Virginias Nat Comfort has some interesting observations Ive playing around since last winter tried head three different engines found would run right plug shimsame stock head Note KKs instructions suggest head shim 5% nitro over 20% experience AT LAST Z-BEST ENGINE CLEANER Lii $2s&HCAg25%tax An Effective High Tech Engine Cleaner RIC Engines Removes Barsedon Fact Residue Encrusted Carbon Build-up Any Bare Metal Engine Outside Inside Z-BEST Cleans Mufflers Tuned Pipes Headers 1i0d&at &ruh&ittg Wont Harm Dincolor Metal Four Ounces Will Clean 10-15 Engines Cleun Engines Rnn Cooler und Lust Longer Dint send check money BORNE HOBBIES order ask local3764 30th St Sun Diego CA 92104 dealerM/C 800-382-0505 VISA similar Nats others Ive heard thisJH noticed no appreciable increase rpm However doesnt matter point no drop rpm cost plugs enough reason use adapter biggest difference have found needle valve action needle works much smoothly easier get solid steady setting Im told Doug Galbreath because heat range Nelson plug congruent pressures produced Tee Dee Nat has also flown new t/2A prop Potis Hangar Products instal lation included Nelson head reports following ran CS APC 6 x 2 got 29500 rpm put Potis prop got 27000 airplane went 100 feet higher Poti propso much tach readings Nat has good point applies engine/prop combinations Static figures rpm useful poinL What really matters altitude gained fastrevving prop doesnt necessarily mean extra height Theres always saddle point rpm gains become less effective must determined engine also prop changes affect model per formance Some props make lots noise sounding impressive ground fan air Others turn less static rpm unload better air giving better overall result way tell prop/engine right model fly port & Scale/Warner Continued page 87 videotape 1992 Flying Aces Club Nats ready Dean McGinnes Co have done video honors last couple FAC Nats have made home movie available couldnt make person mixed bag some IT YOURSELF Easyto use Save Money Save Time As low $995 -sy write CallSmithy Dept MA Lathe Drill 1-800-345-6342F 2nd Street Ask operator MAThe Dalles OR 97050 148 Model Aviation ude $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 C Fax 904 494-0207
Edition: Model Aviation - 1993/02
Page Numbers: 88, 147, 148
I F REEFLIGHT GAINING popularity free flight contests Hand-Held Catapult Glider event Although rules vary different regions country basics tend similar single loop rubberperhaps eight nine inches maximum lengthand unrestricted model design Scoring standard Hand-Launched Gliderie best three six flights count twominute max Vic Nipperts Zip-A-Do Too won years Nationals East Coast Free Flight Championships Vic adds design also has won number Sky-Scraper monthly contests unusual feature Zip-A-Do Too least compared models Ive seen launch grip under center-of-gravity rather behind stab catapult hook built nosea frequent universal position Ive seen models multiple hooks presumably get best launch climb pattern particular design wing /16 quarter-grain balsa tapered /16 tips Vic finished model coat sanding sealer followed two coats Sig Lite-Coat gave stab rudder just single coat Lite-Coat used three coats DURATION 1 fuselage center-of gravity about 60% All-up weight 18 grams build couple time because thermaling ability Vic writes No dethermalizer DT shown plans assume Vic doesnt use seems shame lose good models though theres simple quick solution flap DT takes five minutes install saves having replace lost models make flap DT need strip aluminum cut horizontally drink can Leave natural curl can Trim two inches strips length profile fuselage nose Epoxy back end strip fuselage leave room snuffer tube orient strip curls out toward wing tip epoxy dries simply rubberband free end strip fuselage DT fuseand youre done fuse burns through rubberband flap will open because spring action curl strip model will come down slow spiral Its good idea try out DT over tall grass weeds case descent steeper youd like simply trim bit off flap try again works number Cleveland-area modelers use method report definite results Catapult Over past couple years Ive experimented catapult gliders different sizes both have competitive airplanes myself test models seven-year-old son Robby build Ive tried very small models better blast orbit ultraslick MonoKoted models higher launch altitude very thin wings again blast high possible After getting whipped enough times making notes other peoples successful designs Ive drawn few conclusions Thin wings just dont get appears catapult gliders must fly up wing speak Most successful models like Vic Nipperts use 3/rn wings high point 30% range moderately light finish models seem have about 16-in wingspan weigh about 18 20 grams have center-of gravity about 65% built some models size lighter weight got much less height launch small models can really climb very sensitive launch well 88 Model Aviation Yorks Jack Nix shows battle scars mud helping free stuck cars 92 USOC held AMAs Muncie site Hand-Held Catapult Glider 16-inchers upper right best 13 inches works well Juniors Smaller models left sensitive Continued poge 147 Clevelands Tad Jones nephew prepare Brooklyn Sky-Scraper John Carbone Michigans Denny Dock holds Ex-Cel Gas CIA meet Wright- launches 300-sq-in Bewitched 1200-square-inch McCoy 60-powered Patterson AFB Cox Tee Dee power Chicopee Nationals Shuriken power Nostalgia-legal Texan comes life RC HolicopterIJolly Continued page 82 aluminum mounting plates also get enough screws assemble frames enough washers underpin screwheads rest Kalt Alpha II parts youll have add make helicopter six-page instruction manual included Assembly very easy carbon pieces drawn CAD computer-assisted drawing machine drilled routed NC numerically controlled machine unit truly precision made everything fitting exactly hat off Dan Laura having produced such high-quality product successfully brought market frames $250not inexpensive certainly worth consider high quality potentially low sales volume Carbon fiber latest thing FAI crowd enables make lighter stiffer machine virtually bulletproof Contact Vertical Flight Tech nologies 1527 SW 116 Ave Pembroke Pines FL 33025 Het-X Corporation became friends AE Stanley putting Top Gun Heli Tournament Stan told worked Hel-X painted canopies told Stan finishing X-Cell 60 would like try Hel-Xs prefinished canopies very pleased canopy company sent Its white three-color neon black splatter finish tail fins match cabin well assembled latching button preinstalled friends have seen canopy have remarked favorably Hel-X does excellent work very fair price Contact Hel-X 558 Highland Aye Upper Montclair NJ 07043 ask catalog Besides custom painting company offers lot neat accessones LJMP Baron Canopy As know have enjoyed Baron Alpha II very much fact am finishing Gas version right now fancy lines Alpha II canopy have found ABS plastic cracks age particularly like clumsy starter want fiberglass Alpha II replacement canopy contact LJMP 714 826-6861 canopy $75 includes molded windscreen shown wraps up month hope youre getting some flying hope got everything wanted Christmas Happy 1993 BCNU SINGE 1936 FF DurationlHaught Continued page 88 being sensitive adjustment point thought might good Robby fly hard time achieving consistency Juniors might want try model thats about 80% normal size wings can built Vs-in sheet bit easier novice shape larger sizes Such model large enough give some real performance less sensitive areas 10- 12-in-span terrors tried earlier Robby able handle model size no problems its step above Crusher beginners model performance See January 1992 column information about Crusher Northern Ohio Free flight Association NOFFA offers interesting variation traditional best-three-of-six scoring method involves incremental max times starting 30 seconds idea flier qualifies higher max making previous time limited number attempts say three level Thus track-and-field event fliers continue until fail particular max time goal being progress final 60-second max point flyoffs begin flyoffs too could stair-stepped time required NOFFAs rationale using system also uses standard HLG encourage consistency reduce luck factor giving fliers chance win also can prove chastening Robby has soundly thrashed two years row much delight Catapult Glider eliminates two variables can influence contest outcomes HLG Physical ability isnt important uses same power plant area well others event quite com petitiveand Tad Jones kids event old men no arms Now looking said National Free Flight Society NFFS re structuring Voting new set four regional vice presidents NFFS has completed Hector Diez West Region VP Jim OReilly will handle Central Region Louis Joyner will cover South east yours truly represents Northeast writing early October 1992 new president replace outgoing Tony Italiano has yet elected Suitable candidates have difficult come anticipated will rectified time new officers begin work January 1 1993 part major NFFS overhaul includes revision bylaws realignment management team believe have good group vice presidents entirely capable serving Free Flights needs however PRECISION MODEL PRODUCTS 64qqf Made U S FFX BARSTOCK ALUMINUM SPINNERS 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Sizes Add $300 Per Spinner 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 February 1993 147 RetailApprox Part No ePriceWeight TT1508.. 1112S1395058oz TT175B 149509502 fl200B159510002 TT225B . 2-1/41695150oz fl226B.. 2-1/4 FAt.1895150oz T12508 12189519002 TT251B. 2112 FAt2095170oz TT275B 2295220oz fl276B.. 2314 FAI249520002 fl300B269526002 fl301B FAll289525002 T1325B.. 31/436953400z T1350B.. 31/2499547002 TT375B . 33/45995520at TT400B4699557002 PROP NUT ADAPTORS V RetailApprox Part NoSizePriceWeight T1140A 8S495061 02 11147-A1/428/7mm495 . 061 02 TT610A6x 10mm495 06302 TT710A7 x 10mm49508202 TT516A .5/162449507602 TT-518A5/1624/8mm495 076 02 TT810A .8 x 1 0mm4 95076 02 TT825A8 x 125mm495 075 02 TT375A3/024.595117 oz TT125AlOx 125mm595 11502 TYPHOON state-of-the art design pattern competition Plug-in adjustable wing stab panels Light weight att balsa construction Plans 909 sq 1000 sq versions show alt formers ribs Wing area909 sqin/lODO sqin Wing span n/73 1/2 Length n/71 1/2 Power 120 four stroke 60 two stroke Plans-909 sq versionIwo sheets$1495 Plans-1000 sqin versioutwo sheds$1495 Fiberglass cowl$1895 Clear canopy$1495 PLUG-IN ADJUSTABLE STAB KIT Set includes two glass filled nylon adjusters aluminum tube phenolic socket set Provides easy removal stab panels micro adjustment stab incidence$895 WING TUBE AND SOCKET SETS Aluminum alloy tubing plug-in wings Special sI p fit phenolic sockets bu Id wing panels inctud edThree standard sizes ava able special lengths order 7/8 dia x 2 ftprecision fit$1095 1 1/4dia x2ft$995 11/2 dia x 3 ft$1495 PLUG-IN WING ADJUSTER KIT Set includes two glass filled nylon adjusters key wing panel front rear allow make micro adjustments straight flight Order two sets incidence adjustment both wing panels desired$795 THE Provides solid support accurate building Rugged construction 7 ply aircraft plywood Regular fuselages up 6-1/4 wide Jumbo fuselages up 9-1/4 wide Use own building board work bench base mount jig stations Uni-Strut guide mis versatile set-up Contains complete hardware instructions Box 4 Standard Jig Stations$1995 Box 4 Jumbo Jig Stations$2195 Two 5 ft Guide Raits & mounting nuts$2295 need help form input members region cant serve dont know what want next few years will critical Free Flights long-term future behooves us assume active role deciding what direction well take No can handle free flight business better free fighters So grab pen pick up phone corral us flying field let voice heard An 010 event Ive number requests plans little Grave Digger model shown September 1992 column Now Bob Stalick has joined fun Bob has built lost model vintage PeeWee B design has also proposed set rules much like used PeeWee 30 010 event think Bobs rules bit harsh propose following 1 No model di mension larger 25 2 Ten-second engine runno mechanical timers allowed Overruns penalized five seconds flight time second engine run over 10 3 Two-minute max three minutes flyoffs no overrun provision Its intent try out unofficial event local contests next springit should blast Id like get some input rules proposed better leave model size unrestricted better have minimum-weight rule Any other factors Ive neglected meantime dig out old 010 buy new take few hours get started truly fun airplane Nelson/Tee Dee glow head continue get reports modelers have tried Kustom Kraftsmanship/Nelson glow head latest such comes Virginias Nat Comfort has some interesting observations Ive playing around since last winter tried head three different engines found would run right plug shimsame stock head Note KKs instructions suggest head shim 5% nitro over 20% experience AT LAST Z-BEST ENGINE CLEANER Lii $2s&HCAg25%tax An Effective High Tech Engine Cleaner RIC Engines Removes Barsedon Fact Residue Encrusted Carbon Build-up Any Bare Metal Engine Outside Inside Z-BEST Cleans Mufflers Tuned Pipes Headers 1i0d&at &ruh&ittg Wont Harm Dincolor Metal Four Ounces Will Clean 10-15 Engines Cleun Engines Rnn Cooler und Lust Longer Dint send check money BORNE HOBBIES order ask local3764 30th St Sun Diego CA 92104 dealerM/C 800-382-0505 VISA similar Nats others Ive heard thisJH noticed no appreciable increase rpm However doesnt matter point no drop rpm cost plugs enough reason use adapter biggest difference have found needle valve action needle works much smoothly easier get solid steady setting Im told Doug Galbreath because heat range Nelson plug congruent pressures produced Tee Dee Nat has also flown new t/2A prop Potis Hangar Products instal lation included Nelson head reports following ran CS APC 6 x 2 got 29500 rpm put Potis prop got 27000 airplane went 100 feet higher Poti propso much tach readings Nat has good point applies engine/prop combinations Static figures rpm useful poinL What really matters altitude gained fastrevving prop doesnt necessarily mean extra height Theres always saddle point rpm gains become less effective must determined engine also prop changes affect model per formance Some props make lots noise sounding impressive ground fan air Others turn less static rpm unload better air giving better overall result way tell prop/engine right model fly port & Scale/Warner Continued page 87 videotape 1992 Flying Aces Club Nats ready Dean McGinnes Co have done video honors last couple FAC Nats have made home movie available couldnt make person mixed bag some IT YOURSELF Easyto use Save Money Save Time As low $995 -sy write CallSmithy Dept MA Lathe Drill 1-800-345-6342F 2nd Street Ask operator MAThe Dalles OR 97050 148 Model Aviation ude $350/Item S&HFL Residents Add 6% Tax GATOR R/C PRODUCTS INC 3713 Pompano Dr Pensacola FL 32514 Phone 904 494-0203 C Fax 904 494-0207