NO OCR TEXT AS ONE OF THE new generation small fighter trainers PC-9 making its mark aviation market de signed fill need trainer would teach transition basic air plane fighter airplane PC-9 first plane intended such role Pt-19 Pt-22 De Havilland Chipmunk intermediate fighter trainers too have low-wing two-place aircraft very nimble designed teach pilot mechanics what would take fly fighter plane what felt like plane went through combat ma neuvers As group airplanes have set standard military training aircraft PC-9 has added advantage modern technology help fill some missing pieces its predecessors sharp modern lines PC-9 its long thin nose tricycle landing gear make excellent design Control Line Stunt Ive always tried keep lines youd like nifty sport model capable flying AMA Control Line Stunt pattern try profile version air plane Europeans using train next generation fighter pilots U Dave Haught layout realistic possible Stunters design lends itself Stunt few modifications profile fuselage scale wing stabilizer modified suit Stunt parameters full-size PC-9 has flat center section tapering tips pro vide dihedral simplicitys sake Ive eliminated flat straight section wing retained dihedral ef fect its appearance flight perform ance nil PC-9 good stable platform capa ble full Stunt pattern Give try see its thick airfoil carries weight well try keep lightweitgh possible retain designed-in nimble ness Construction quite straightforward As generally best scratch-building cut out parts first balsa fuselage plank will need firm still light straight canopy area has spliced can cut very light balsa will notice construction enMay 1988 65 Clean views PC-9 design lends itself well Stunt circle leading edge fair ings stab support anti-spin stakes like De Havilland trainers I / BC-style landing gear mounting DIOCKS nold main gear place Replacement re bending should necessary painless effort Notice well nose cheek doublers fair wing give wing/fuselage joint extra measure structural Integrity business side Turbo-Trainer shows tank installation engine snuggled its fuselage cheeks Theres lots room adding muffler fuel tank pressurizing Full-Size Plans Available Page 180 pftAJYSft LA MACE gine mount area bit different stan dard procedure use %-in plywood en gine mount plate engine well nose gear wire Any good-quality fiveply will Attach nose gear wire plate J-bolts lock drop cvanoacrvlate CvA Fit nlvwncsd tn fuselage sheet glue together white glue dry locate drill engine mount holes install blind nuts Carve nose cheeks shape tack glue place Carve blocks contour spinner back fuse lage plank cheeks act doublers add lot strength model Sand stabilizer elevator edges shape Add balances elevator install hinges Cut slot fu selage carefully align glue stab place Before glue sets make sure stab aligned properly front top Continued page 171 Left The far end control system stark simplicity pushrod end has Z bend slid place before clevis other end secured hinges need free paint glue tor easy-working controls Note balanced elevators Pilatus trademark Right Flap hookup looks complicated RC aileron hardware used accommodate dihedral swept-forward wing trailing edge 66 Model Aviation ftF F__________ IAg ft-sn-S-yft-ft-SftCft-Fr ALL ROS S/52 55E0 ILSF15 545 $755 tjt n-F kn2t~_D 14Wftftmftft [v32][b-1-10-1-10]] FLA 0 3FftftLY 5554ff-z----------IFft PLO SEA SS2 MW PAFOftOC L1ft FY LA ftOOftft 5 ,a FIFft SOUL 1FLA ACER ftOLAES IFftftftF ICE StAR______________ UIS PliESTA PFAAFAAfl/NSA- PRASO &LLZ 5151PftW LA A/NICESt LIE SJftft TftMFRS 0FAS4SS5ftft C 0510 4454ff IIIIIFIftftPA54ftnSISEICSEAE satisfactory job getting material out pores metal repairs virtually impossible myself must have least 25 Har ters proto pans have rendered use less small cracks around various tapped mount ing holes Nelson Funny Plug evaluations have just finished rather extensive evaluation Nel son Funny Plug 4L iL models plus Nelson one-piece plug first observation 10%-nitro fuel much less taxing element three plugs 50%75%-nitro fuel used past Depending upon head clearance both 15 40 cu engines iL Funny Plug off 100-600 rpm 4L same head clearance Apparent ly 4L plug runs just shade hotter lL General head clearance both 15 Scale Rac ing engines 008 012 head clear ance Rat Race 40 constant-diameter pipe 010 015 K&B 40 engines require approximately 005-008 additional head clearance compared Supertigre 40 one-piece Nelson Funny Plug seems run about 200 rpm better 4L making best performer three candidates Unfortu nately its element somewhat thin find biggest distortion factor setting rheostat GloBee battery batterys amperage-level rheostat moved farther half distance its travel plug glows extremely bright distorts quickly en gine starts compression hits wire course peephole effect plug mini mizes element distortion element glowing bright under battery power distortion imminent carefully adjusting rheostat plug can caused give very faint glow very little distortion element after running pitting situation will course different battery type used important gauge connecting wire its length battery setup will have tached aircraft glow plugs heat ob served make sure rheostat adjusted properly Longer heavier-gauge wire will re quire higher setting rheostat Heavier lower-gauge and/or shorter wires will result opposite condition phenomenon also evident iL 4L plugs faint glow distinguishable plugs bat tery connected reliable starting impossible Cox 049 Mouse Racing engines have object another rather extensive study will share results next July column honest opinion temperamental Racing engines As always solicit comments photos Pilatus PC-9/Haught Continued page 66 side dry add leading edge fair ings look neat add con siderable strength well fairings drying sand the fin rudder glue together offset shown pians Glue assembled fin rudder fuselage top Use drafting triangle make sure everything square Add dorsal fin wing built two halves joined * Superior Igniters Improve starting Idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion Afterrun oil needed engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed SIG CHAMPION 2-STROW FREE SHIPPING ON ORDERS OVER $1500FREIGHT COLLECT PINTQUART GALLON55 GAL DRUM 0%Nitromethane$315$450$1075$19695 5%Nitromethane$365$525$1275$26495 10%Nitromethane$415$550$1475$32995 15%Nitromethane$430$635$1675$38995 25%Nitromethane$515$795$2195$52495 35%Nitromethane$595$925$2695$66995 SIG PREMIL M -SThCI L itromethane$1425$29995 15%Nitromethane$1625 I$36495 THE CHOiCF ci KHAM K YS over 20 years SIG has blending finest quality model engine fuel available using st quality ingredients instance Methanol use 995% pure very best grade y can buy also use real 100% pure Nitromethane get full measure youve paid based honest percentage-of-volume od percentage weight SIG fuels contam 50-50 blend Bakers purest AA Castor Oil new improved Klotz Techniplate Synthetic Racing Oil maximum engine lubrication protection Based rience sincerely believe finest quality fuel can made price k dont take word try some judge yourself poces sosiect coenge sothoot notice See dealer first available order direct Call J 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO. Montezuma IA 50171 988 171 Paper Flying Scale Model Airplane $7 00 *ttJ PARTS PRE-CUT & PRE-PAINTED *BUILD & FLY IN TWO HOURS -I Ib CATALOG $750 Contains 1000s p~er airplanes Prom hostage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDING CataLog AIR papa aLtptana abova $1050 pluh $250 potaga p ATT-CHEKI ON-Board Battery Tester Saves Time. Saves Models BAiTCHEK RX-1 $1495 e USA plywood dihedral braces sheeted Begin laying ribs wing parts out will handy Mark rib locations spars slip ribs place bottom spar Once ribs place insert top spar Mark locations ribs lead ing trailing edges Pin leading trailing edges place Cover plans wax paper set completed wing assembly plans align parts everything pinned place over plans put glue joints suggest using white glue job cause allows final chance adjust bend out warps misalignments before sets Repeat procedure other panel wings setting cut out bellcrank mount install good 3-in metal nylon bellcrank Install lead-outs tach landing gear braces hard wood mounts using ample bracing Fit two wing panels together sand required dihedral angle Pin panel bench block other up Add plywood braces center rib bellcrank mount extra bracing feel necessary Once wing panel dry remove board drill holes lead-outs lead-out guides Bend flap pushrods shape install flap horns used RC aileron linkages worked very well Connect pushrods adjust give neutral flap bellcrank center position Fin ish off lead-out ends sheet cen ter section Add wrap reinforcing tape around center break wrap around both flap bushings complete wing construction cut flaps out sheet balsa 3-in sheet will make both flaps stagger just right Sand airfoil shape hinge wing trailing edge Covering assembly plan use plastic covering should go ahead assemble model now youre using tis sue wing seal wood couple coats thinned dope sand smooth Apply tissue shrink New Install RO Models Check receiver battery status press button Small Light 1/2 oz Precise Rugged ORDER TODAY dealer Protune Corp 914 462-6452 PO Box 1808 Poughkeepaie NY 12601 apply five coats clear dope fuselage-to-wing joint important needs fitted carefully ensure ade quate strength Once have good fit epoxy wing place setting bend main land ing gear struts cut out install wheel covers Bend install main pushrod install elevator control horn Give wood few coats thinned dope sand fill rough spots Choosing color scheme hard part Pilatus PC-9 has featured sev eral aviation magazines various bright colors original model trimmed match second prototype PC-9 shown November 1985 issue Air Interna tional course military colors also appropriate have fun figuring out yours Apply color trim suit used automotive trim tape add aileron lines cockpit details fuss just makes model look better will fly same bother Now time add engine wheels tank fuel lines other lit tle details Check PC-9 proper bal ance wing warps correct neces sary Test run engine make sure tank feeds should head flying field Get ready inevitable comments 'Yes does look like souped-up Ringmaster its Platypus its Pilatus So goes build something quite ordinary air PC-9 does fly well high aspect ratio wing makes up ap parent lack wing area gives ship interesting look dihedral will attract lot questions has never problem Stunters Both upright inverted ship grooves flies level Enjoy PC-9 Its just high-tech trainer its fun flyand thats what its about FF Old-Timers/Baker Continued page 67 out picking very small nits difference can see wing mount OMS version does have somewhat information plan gives propeller choice 172 Model Aviation
Edition: Model Aviation - 1988/05
Page Numbers: 64, 65, 66, 171, 172
NO OCR TEXT AS ONE OF THE new generation small fighter trainers PC-9 making its mark aviation market de signed fill need trainer would teach transition basic air plane fighter airplane PC-9 first plane intended such role Pt-19 Pt-22 De Havilland Chipmunk intermediate fighter trainers too have low-wing two-place aircraft very nimble designed teach pilot mechanics what would take fly fighter plane what felt like plane went through combat ma neuvers As group airplanes have set standard military training aircraft PC-9 has added advantage modern technology help fill some missing pieces its predecessors sharp modern lines PC-9 its long thin nose tricycle landing gear make excellent design Control Line Stunt Ive always tried keep lines youd like nifty sport model capable flying AMA Control Line Stunt pattern try profile version air plane Europeans using train next generation fighter pilots U Dave Haught layout realistic possible Stunters design lends itself Stunt few modifications profile fuselage scale wing stabilizer modified suit Stunt parameters full-size PC-9 has flat center section tapering tips pro vide dihedral simplicitys sake Ive eliminated flat straight section wing retained dihedral ef fect its appearance flight perform ance nil PC-9 good stable platform capa ble full Stunt pattern Give try see its thick airfoil carries weight well try keep lightweitgh possible retain designed-in nimble ness Construction quite straightforward As generally best scratch-building cut out parts first balsa fuselage plank will need firm still light straight canopy area has spliced can cut very light balsa will notice construction enMay 1988 65 Clean views PC-9 design lends itself well Stunt circle leading edge fair ings stab support anti-spin stakes like De Havilland trainers I / BC-style landing gear mounting DIOCKS nold main gear place Replacement re bending should necessary painless effort Notice well nose cheek doublers fair wing give wing/fuselage joint extra measure structural Integrity business side Turbo-Trainer shows tank installation engine snuggled its fuselage cheeks Theres lots room adding muffler fuel tank pressurizing Full-Size Plans Available Page 180 pftAJYSft LA MACE gine mount area bit different stan dard procedure use %-in plywood en gine mount plate engine well nose gear wire Any good-quality fiveply will Attach nose gear wire plate J-bolts lock drop cvanoacrvlate CvA Fit nlvwncsd tn fuselage sheet glue together white glue dry locate drill engine mount holes install blind nuts Carve nose cheeks shape tack glue place Carve blocks contour spinner back fuse lage plank cheeks act doublers add lot strength model Sand stabilizer elevator edges shape Add balances elevator install hinges Cut slot fu selage carefully align glue stab place Before glue sets make sure stab aligned properly front top Continued page 171 Left The far end control system stark simplicity pushrod end has Z bend slid place before clevis other end secured hinges need free paint glue tor easy-working controls Note balanced elevators Pilatus trademark Right Flap hookup looks complicated RC aileron hardware used accommodate dihedral swept-forward wing trailing edge 66 Model Aviation ftF F__________ IAg ft-sn-S-yft-ft-SftCft-Fr ALL ROS S/52 55E0 ILSF15 545 $755 tjt n-F kn2t~_D 14Wftftmftft [v32][b-1-10-1-10]] FLA 0 3FftftLY 5554ff-z----------IFft PLO SEA SS2 MW PAFOftOC L1ft FY LA ftOOftft 5 ,a FIFft SOUL 1FLA ACER ftOLAES IFftftftF ICE StAR______________ UIS PliESTA PFAAFAAfl/NSA- PRASO &LLZ 5151PftW LA A/NICESt LIE SJftft TftMFRS 0FAS4SS5ftft C 0510 4454ff IIIIIFIftftPA54ftnSISEICSEAE satisfactory job getting material out pores metal repairs virtually impossible myself must have least 25 Har ters proto pans have rendered use less small cracks around various tapped mount ing holes Nelson Funny Plug evaluations have just finished rather extensive evaluation Nel son Funny Plug 4L iL models plus Nelson one-piece plug first observation 10%-nitro fuel much less taxing element three plugs 50%75%-nitro fuel used past Depending upon head clearance both 15 40 cu engines iL Funny Plug off 100-600 rpm 4L same head clearance Apparent ly 4L plug runs just shade hotter lL General head clearance both 15 Scale Rac ing engines 008 012 head clear ance Rat Race 40 constant-diameter pipe 010 015 K&B 40 engines require approximately 005-008 additional head clearance compared Supertigre 40 one-piece Nelson Funny Plug seems run about 200 rpm better 4L making best performer three candidates Unfortu nately its element somewhat thin find biggest distortion factor setting rheostat GloBee battery batterys amperage-level rheostat moved farther half distance its travel plug glows extremely bright distorts quickly en gine starts compression hits wire course peephole effect plug mini mizes element distortion element glowing bright under battery power distortion imminent carefully adjusting rheostat plug can caused give very faint glow very little distortion element after running pitting situation will course different battery type used important gauge connecting wire its length battery setup will have tached aircraft glow plugs heat ob served make sure rheostat adjusted properly Longer heavier-gauge wire will re quire higher setting rheostat Heavier lower-gauge and/or shorter wires will result opposite condition phenomenon also evident iL 4L plugs faint glow distinguishable plugs bat tery connected reliable starting impossible Cox 049 Mouse Racing engines have object another rather extensive study will share results next July column honest opinion temperamental Racing engines As always solicit comments photos Pilatus PC-9/Haught Continued page 66 side dry add leading edge fair ings look neat add con siderable strength well fairings drying sand the fin rudder glue together offset shown pians Glue assembled fin rudder fuselage top Use drafting triangle make sure everything square Add dorsal fin wing built two halves joined * Superior Igniters Improve starting Idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion Afterrun oil needed engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed SIG CHAMPION 2-STROW FREE SHIPPING ON ORDERS OVER $1500FREIGHT COLLECT PINTQUART GALLON55 GAL DRUM 0%Nitromethane$315$450$1075$19695 5%Nitromethane$365$525$1275$26495 10%Nitromethane$415$550$1475$32995 15%Nitromethane$430$635$1675$38995 25%Nitromethane$515$795$2195$52495 35%Nitromethane$595$925$2695$66995 SIG PREMIL M -SThCI L itromethane$1425$29995 15%Nitromethane$1625 I$36495 THE CHOiCF ci KHAM K YS over 20 years SIG has blending finest quality model engine fuel available using st quality ingredients instance Methanol use 995% pure very best grade y can buy also use real 100% pure Nitromethane get full measure youve paid based honest percentage-of-volume od percentage weight SIG fuels contam 50-50 blend Bakers purest AA Castor Oil new improved Klotz Techniplate Synthetic Racing Oil maximum engine lubrication protection Based rience sincerely believe finest quality fuel can made price k dont take word try some judge yourself poces sosiect coenge sothoot notice See dealer first available order direct Call J 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO. Montezuma IA 50171 988 171 Paper Flying Scale Model Airplane $7 00 *ttJ PARTS PRE-CUT & PRE-PAINTED *BUILD & FLY IN TWO HOURS -I Ib CATALOG $750 Contains 1000s p~er airplanes Prom hostage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDING CataLog AIR papa aLtptana abova $1050 pluh $250 potaga p ATT-CHEKI ON-Board Battery Tester Saves Time. Saves Models BAiTCHEK RX-1 $1495 e USA plywood dihedral braces sheeted Begin laying ribs wing parts out will handy Mark rib locations spars slip ribs place bottom spar Once ribs place insert top spar Mark locations ribs lead ing trailing edges Pin leading trailing edges place Cover plans wax paper set completed wing assembly plans align parts everything pinned place over plans put glue joints suggest using white glue job cause allows final chance adjust bend out warps misalignments before sets Repeat procedure other panel wings setting cut out bellcrank mount install good 3-in metal nylon bellcrank Install lead-outs tach landing gear braces hard wood mounts using ample bracing Fit two wing panels together sand required dihedral angle Pin panel bench block other up Add plywood braces center rib bellcrank mount extra bracing feel necessary Once wing panel dry remove board drill holes lead-outs lead-out guides Bend flap pushrods shape install flap horns used RC aileron linkages worked very well Connect pushrods adjust give neutral flap bellcrank center position Fin ish off lead-out ends sheet cen ter section Add wrap reinforcing tape around center break wrap around both flap bushings complete wing construction cut flaps out sheet balsa 3-in sheet will make both flaps stagger just right Sand airfoil shape hinge wing trailing edge Covering assembly plan use plastic covering should go ahead assemble model now youre using tis sue wing seal wood couple coats thinned dope sand smooth Apply tissue shrink New Install RO Models Check receiver battery status press button Small Light 1/2 oz Precise Rugged ORDER TODAY dealer Protune Corp 914 462-6452 PO Box 1808 Poughkeepaie NY 12601 apply five coats clear dope fuselage-to-wing joint important needs fitted carefully ensure ade quate strength Once have good fit epoxy wing place setting bend main land ing gear struts cut out install wheel covers Bend install main pushrod install elevator control horn Give wood few coats thinned dope sand fill rough spots Choosing color scheme hard part Pilatus PC-9 has featured sev eral aviation magazines various bright colors original model trimmed match second prototype PC-9 shown November 1985 issue Air Interna tional course military colors also appropriate have fun figuring out yours Apply color trim suit used automotive trim tape add aileron lines cockpit details fuss just makes model look better will fly same bother Now time add engine wheels tank fuel lines other lit tle details Check PC-9 proper bal ance wing warps correct neces sary Test run engine make sure tank feeds should head flying field Get ready inevitable comments 'Yes does look like souped-up Ringmaster its Platypus its Pilatus So goes build something quite ordinary air PC-9 does fly well high aspect ratio wing makes up ap parent lack wing area gives ship interesting look dihedral will attract lot questions has never problem Stunters Both upright inverted ship grooves flies level Enjoy PC-9 Its just high-tech trainer its fun flyand thats what its about FF Old-Timers/Baker Continued page 67 out picking very small nits difference can see wing mount OMS version does have somewhat information plan gives propeller choice 172 Model Aviation
Edition: Model Aviation - 1988/05
Page Numbers: 64, 65, 66, 171, 172
NO OCR TEXT AS ONE OF THE new generation small fighter trainers PC-9 making its mark aviation market de signed fill need trainer would teach transition basic air plane fighter airplane PC-9 first plane intended such role Pt-19 Pt-22 De Havilland Chipmunk intermediate fighter trainers too have low-wing two-place aircraft very nimble designed teach pilot mechanics what would take fly fighter plane what felt like plane went through combat ma neuvers As group airplanes have set standard military training aircraft PC-9 has added advantage modern technology help fill some missing pieces its predecessors sharp modern lines PC-9 its long thin nose tricycle landing gear make excellent design Control Line Stunt Ive always tried keep lines youd like nifty sport model capable flying AMA Control Line Stunt pattern try profile version air plane Europeans using train next generation fighter pilots U Dave Haught layout realistic possible Stunters design lends itself Stunt few modifications profile fuselage scale wing stabilizer modified suit Stunt parameters full-size PC-9 has flat center section tapering tips pro vide dihedral simplicitys sake Ive eliminated flat straight section wing retained dihedral ef fect its appearance flight perform ance nil PC-9 good stable platform capa ble full Stunt pattern Give try see its thick airfoil carries weight well try keep lightweitgh possible retain designed-in nimble ness Construction quite straightforward As generally best scratch-building cut out parts first balsa fuselage plank will need firm still light straight canopy area has spliced can cut very light balsa will notice construction enMay 1988 65 Clean views PC-9 design lends itself well Stunt circle leading edge fair ings stab support anti-spin stakes like De Havilland trainers I / BC-style landing gear mounting DIOCKS nold main gear place Replacement re bending should necessary painless effort Notice well nose cheek doublers fair wing give wing/fuselage joint extra measure structural Integrity business side Turbo-Trainer shows tank installation engine snuggled its fuselage cheeks Theres lots room adding muffler fuel tank pressurizing Full-Size Plans Available Page 180 pftAJYSft LA MACE gine mount area bit different stan dard procedure use %-in plywood en gine mount plate engine well nose gear wire Any good-quality fiveply will Attach nose gear wire plate J-bolts lock drop cvanoacrvlate CvA Fit nlvwncsd tn fuselage sheet glue together white glue dry locate drill engine mount holes install blind nuts Carve nose cheeks shape tack glue place Carve blocks contour spinner back fuse lage plank cheeks act doublers add lot strength model Sand stabilizer elevator edges shape Add balances elevator install hinges Cut slot fu selage carefully align glue stab place Before glue sets make sure stab aligned properly front top Continued page 171 Left The far end control system stark simplicity pushrod end has Z bend slid place before clevis other end secured hinges need free paint glue tor easy-working controls Note balanced elevators Pilatus trademark Right Flap hookup looks complicated RC aileron hardware used accommodate dihedral swept-forward wing trailing edge 66 Model Aviation ftF F__________ IAg ft-sn-S-yft-ft-SftCft-Fr ALL ROS S/52 55E0 ILSF15 545 $755 tjt n-F kn2t~_D 14Wftftmftft [v32][b-1-10-1-10]] FLA 0 3FftftLY 5554ff-z----------IFft PLO SEA SS2 MW PAFOftOC L1ft FY LA ftOOftft 5 ,a FIFft SOUL 1FLA ACER ftOLAES IFftftftF ICE StAR______________ UIS PliESTA PFAAFAAfl/NSA- PRASO &LLZ 5151PftW LA A/NICESt LIE SJftft TftMFRS 0FAS4SS5ftft C 0510 4454ff IIIIIFIftftPA54ftnSISEICSEAE satisfactory job getting material out pores metal repairs virtually impossible myself must have least 25 Har ters proto pans have rendered use less small cracks around various tapped mount ing holes Nelson Funny Plug evaluations have just finished rather extensive evaluation Nel son Funny Plug 4L iL models plus Nelson one-piece plug first observation 10%-nitro fuel much less taxing element three plugs 50%75%-nitro fuel used past Depending upon head clearance both 15 40 cu engines iL Funny Plug off 100-600 rpm 4L same head clearance Apparent ly 4L plug runs just shade hotter lL General head clearance both 15 Scale Rac ing engines 008 012 head clear ance Rat Race 40 constant-diameter pipe 010 015 K&B 40 engines require approximately 005-008 additional head clearance compared Supertigre 40 one-piece Nelson Funny Plug seems run about 200 rpm better 4L making best performer three candidates Unfortu nately its element somewhat thin find biggest distortion factor setting rheostat GloBee battery batterys amperage-level rheostat moved farther half distance its travel plug glows extremely bright distorts quickly en gine starts compression hits wire course peephole effect plug mini mizes element distortion element glowing bright under battery power distortion imminent carefully adjusting rheostat plug can caused give very faint glow very little distortion element after running pitting situation will course different battery type used important gauge connecting wire its length battery setup will have tached aircraft glow plugs heat ob served make sure rheostat adjusted properly Longer heavier-gauge wire will re quire higher setting rheostat Heavier lower-gauge and/or shorter wires will result opposite condition phenomenon also evident iL 4L plugs faint glow distinguishable plugs bat tery connected reliable starting impossible Cox 049 Mouse Racing engines have object another rather extensive study will share results next July column honest opinion temperamental Racing engines As always solicit comments photos Pilatus PC-9/Haught Continued page 66 side dry add leading edge fair ings look neat add con siderable strength well fairings drying sand the fin rudder glue together offset shown pians Glue assembled fin rudder fuselage top Use drafting triangle make sure everything square Add dorsal fin wing built two halves joined * Superior Igniters Improve starting Idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion Afterrun oil needed engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed SIG CHAMPION 2-STROW FREE SHIPPING ON ORDERS OVER $1500FREIGHT COLLECT PINTQUART GALLON55 GAL DRUM 0%Nitromethane$315$450$1075$19695 5%Nitromethane$365$525$1275$26495 10%Nitromethane$415$550$1475$32995 15%Nitromethane$430$635$1675$38995 25%Nitromethane$515$795$2195$52495 35%Nitromethane$595$925$2695$66995 SIG PREMIL M -SThCI L itromethane$1425$29995 15%Nitromethane$1625 I$36495 THE CHOiCF ci KHAM K YS over 20 years SIG has blending finest quality model engine fuel available using st quality ingredients instance Methanol use 995% pure very best grade y can buy also use real 100% pure Nitromethane get full measure youve paid based honest percentage-of-volume od percentage weight SIG fuels contam 50-50 blend Bakers purest AA Castor Oil new improved Klotz Techniplate Synthetic Racing Oil maximum engine lubrication protection Based rience sincerely believe finest quality fuel can made price k dont take word try some judge yourself poces sosiect coenge sothoot notice See dealer first available order direct Call J 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO. Montezuma IA 50171 988 171 Paper Flying Scale Model Airplane $7 00 *ttJ PARTS PRE-CUT & PRE-PAINTED *BUILD & FLY IN TWO HOURS -I Ib CATALOG $750 Contains 1000s p~er airplanes Prom hostage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDING CataLog AIR papa aLtptana abova $1050 pluh $250 potaga p ATT-CHEKI ON-Board Battery Tester Saves Time. Saves Models BAiTCHEK RX-1 $1495 e USA plywood dihedral braces sheeted Begin laying ribs wing parts out will handy Mark rib locations spars slip ribs place bottom spar Once ribs place insert top spar Mark locations ribs lead ing trailing edges Pin leading trailing edges place Cover plans wax paper set completed wing assembly plans align parts everything pinned place over plans put glue joints suggest using white glue job cause allows final chance adjust bend out warps misalignments before sets Repeat procedure other panel wings setting cut out bellcrank mount install good 3-in metal nylon bellcrank Install lead-outs tach landing gear braces hard wood mounts using ample bracing Fit two wing panels together sand required dihedral angle Pin panel bench block other up Add plywood braces center rib bellcrank mount extra bracing feel necessary Once wing panel dry remove board drill holes lead-outs lead-out guides Bend flap pushrods shape install flap horns used RC aileron linkages worked very well Connect pushrods adjust give neutral flap bellcrank center position Fin ish off lead-out ends sheet cen ter section Add wrap reinforcing tape around center break wrap around both flap bushings complete wing construction cut flaps out sheet balsa 3-in sheet will make both flaps stagger just right Sand airfoil shape hinge wing trailing edge Covering assembly plan use plastic covering should go ahead assemble model now youre using tis sue wing seal wood couple coats thinned dope sand smooth Apply tissue shrink New Install RO Models Check receiver battery status press button Small Light 1/2 oz Precise Rugged ORDER TODAY dealer Protune Corp 914 462-6452 PO Box 1808 Poughkeepaie NY 12601 apply five coats clear dope fuselage-to-wing joint important needs fitted carefully ensure ade quate strength Once have good fit epoxy wing place setting bend main land ing gear struts cut out install wheel covers Bend install main pushrod install elevator control horn Give wood few coats thinned dope sand fill rough spots Choosing color scheme hard part Pilatus PC-9 has featured sev eral aviation magazines various bright colors original model trimmed match second prototype PC-9 shown November 1985 issue Air Interna tional course military colors also appropriate have fun figuring out yours Apply color trim suit used automotive trim tape add aileron lines cockpit details fuss just makes model look better will fly same bother Now time add engine wheels tank fuel lines other lit tle details Check PC-9 proper bal ance wing warps correct neces sary Test run engine make sure tank feeds should head flying field Get ready inevitable comments 'Yes does look like souped-up Ringmaster its Platypus its Pilatus So goes build something quite ordinary air PC-9 does fly well high aspect ratio wing makes up ap parent lack wing area gives ship interesting look dihedral will attract lot questions has never problem Stunters Both upright inverted ship grooves flies level Enjoy PC-9 Its just high-tech trainer its fun flyand thats what its about FF Old-Timers/Baker Continued page 67 out picking very small nits difference can see wing mount OMS version does have somewhat information plan gives propeller choice 172 Model Aviation
Edition: Model Aviation - 1988/05
Page Numbers: 64, 65, 66, 171, 172
NO OCR TEXT AS ONE OF THE new generation small fighter trainers PC-9 making its mark aviation market de signed fill need trainer would teach transition basic air plane fighter airplane PC-9 first plane intended such role Pt-19 Pt-22 De Havilland Chipmunk intermediate fighter trainers too have low-wing two-place aircraft very nimble designed teach pilot mechanics what would take fly fighter plane what felt like plane went through combat ma neuvers As group airplanes have set standard military training aircraft PC-9 has added advantage modern technology help fill some missing pieces its predecessors sharp modern lines PC-9 its long thin nose tricycle landing gear make excellent design Control Line Stunt Ive always tried keep lines youd like nifty sport model capable flying AMA Control Line Stunt pattern try profile version air plane Europeans using train next generation fighter pilots U Dave Haught layout realistic possible Stunters design lends itself Stunt few modifications profile fuselage scale wing stabilizer modified suit Stunt parameters full-size PC-9 has flat center section tapering tips pro vide dihedral simplicitys sake Ive eliminated flat straight section wing retained dihedral ef fect its appearance flight perform ance nil PC-9 good stable platform capa ble full Stunt pattern Give try see its thick airfoil carries weight well try keep lightweitgh possible retain designed-in nimble ness Construction quite straightforward As generally best scratch-building cut out parts first balsa fuselage plank will need firm still light straight canopy area has spliced can cut very light balsa will notice construction enMay 1988 65 Clean views PC-9 design lends itself well Stunt circle leading edge fair ings stab support anti-spin stakes like De Havilland trainers I / BC-style landing gear mounting DIOCKS nold main gear place Replacement re bending should necessary painless effort Notice well nose cheek doublers fair wing give wing/fuselage joint extra measure structural Integrity business side Turbo-Trainer shows tank installation engine snuggled its fuselage cheeks Theres lots room adding muffler fuel tank pressurizing Full-Size Plans Available Page 180 pftAJYSft LA MACE gine mount area bit different stan dard procedure use %-in plywood en gine mount plate engine well nose gear wire Any good-quality fiveply will Attach nose gear wire plate J-bolts lock drop cvanoacrvlate CvA Fit nlvwncsd tn fuselage sheet glue together white glue dry locate drill engine mount holes install blind nuts Carve nose cheeks shape tack glue place Carve blocks contour spinner back fuse lage plank cheeks act doublers add lot strength model Sand stabilizer elevator edges shape Add balances elevator install hinges Cut slot fu selage carefully align glue stab place Before glue sets make sure stab aligned properly front top Continued page 171 Left The far end control system stark simplicity pushrod end has Z bend slid place before clevis other end secured hinges need free paint glue tor easy-working controls Note balanced elevators Pilatus trademark Right Flap hookup looks complicated RC aileron hardware used accommodate dihedral swept-forward wing trailing edge 66 Model Aviation ftF F__________ IAg ft-sn-S-yft-ft-SftCft-Fr ALL ROS S/52 55E0 ILSF15 545 $755 tjt n-F kn2t~_D 14Wftftmftft [v32][b-1-10-1-10]] FLA 0 3FftftLY 5554ff-z----------IFft PLO SEA SS2 MW PAFOftOC L1ft FY LA ftOOftft 5 ,a FIFft SOUL 1FLA ACER ftOLAES IFftftftF ICE StAR______________ UIS PliESTA PFAAFAAfl/NSA- PRASO &LLZ 5151PftW LA A/NICESt LIE SJftft TftMFRS 0FAS4SS5ftft C 0510 4454ff IIIIIFIftftPA54ftnSISEICSEAE satisfactory job getting material out pores metal repairs virtually impossible myself must have least 25 Har ters proto pans have rendered use less small cracks around various tapped mount ing holes Nelson Funny Plug evaluations have just finished rather extensive evaluation Nel son Funny Plug 4L iL models plus Nelson one-piece plug first observation 10%-nitro fuel much less taxing element three plugs 50%75%-nitro fuel used past Depending upon head clearance both 15 40 cu engines iL Funny Plug off 100-600 rpm 4L same head clearance Apparent ly 4L plug runs just shade hotter lL General head clearance both 15 Scale Rac ing engines 008 012 head clear ance Rat Race 40 constant-diameter pipe 010 015 K&B 40 engines require approximately 005-008 additional head clearance compared Supertigre 40 one-piece Nelson Funny Plug seems run about 200 rpm better 4L making best performer three candidates Unfortu nately its element somewhat thin find biggest distortion factor setting rheostat GloBee battery batterys amperage-level rheostat moved farther half distance its travel plug glows extremely bright distorts quickly en gine starts compression hits wire course peephole effect plug mini mizes element distortion element glowing bright under battery power distortion imminent carefully adjusting rheostat plug can caused give very faint glow very little distortion element after running pitting situation will course different battery type used important gauge connecting wire its length battery setup will have tached aircraft glow plugs heat ob served make sure rheostat adjusted properly Longer heavier-gauge wire will re quire higher setting rheostat Heavier lower-gauge and/or shorter wires will result opposite condition phenomenon also evident iL 4L plugs faint glow distinguishable plugs bat tery connected reliable starting impossible Cox 049 Mouse Racing engines have object another rather extensive study will share results next July column honest opinion temperamental Racing engines As always solicit comments photos Pilatus PC-9/Haught Continued page 66 side dry add leading edge fair ings look neat add con siderable strength well fairings drying sand the fin rudder glue together offset shown pians Glue assembled fin rudder fuselage top Use drafting triangle make sure everything square Add dorsal fin wing built two halves joined * Superior Igniters Improve starting Idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion Afterrun oil needed engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed SIG CHAMPION 2-STROW FREE SHIPPING ON ORDERS OVER $1500FREIGHT COLLECT PINTQUART GALLON55 GAL DRUM 0%Nitromethane$315$450$1075$19695 5%Nitromethane$365$525$1275$26495 10%Nitromethane$415$550$1475$32995 15%Nitromethane$430$635$1675$38995 25%Nitromethane$515$795$2195$52495 35%Nitromethane$595$925$2695$66995 SIG PREMIL M -SThCI L itromethane$1425$29995 15%Nitromethane$1625 I$36495 THE CHOiCF ci KHAM K YS over 20 years SIG has blending finest quality model engine fuel available using st quality ingredients instance Methanol use 995% pure very best grade y can buy also use real 100% pure Nitromethane get full measure youve paid based honest percentage-of-volume od percentage weight SIG fuels contam 50-50 blend Bakers purest AA Castor Oil new improved Klotz Techniplate Synthetic Racing Oil maximum engine lubrication protection Based rience sincerely believe finest quality fuel can made price k dont take word try some judge yourself poces sosiect coenge sothoot notice See dealer first available order direct Call J 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO. Montezuma IA 50171 988 171 Paper Flying Scale Model Airplane $7 00 *ttJ PARTS PRE-CUT & PRE-PAINTED *BUILD & FLY IN TWO HOURS -I Ib CATALOG $750 Contains 1000s p~er airplanes Prom hostage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDING CataLog AIR papa aLtptana abova $1050 pluh $250 potaga p ATT-CHEKI ON-Board Battery Tester Saves Time. Saves Models BAiTCHEK RX-1 $1495 e USA plywood dihedral braces sheeted Begin laying ribs wing parts out will handy Mark rib locations spars slip ribs place bottom spar Once ribs place insert top spar Mark locations ribs lead ing trailing edges Pin leading trailing edges place Cover plans wax paper set completed wing assembly plans align parts everything pinned place over plans put glue joints suggest using white glue job cause allows final chance adjust bend out warps misalignments before sets Repeat procedure other panel wings setting cut out bellcrank mount install good 3-in metal nylon bellcrank Install lead-outs tach landing gear braces hard wood mounts using ample bracing Fit two wing panels together sand required dihedral angle Pin panel bench block other up Add plywood braces center rib bellcrank mount extra bracing feel necessary Once wing panel dry remove board drill holes lead-outs lead-out guides Bend flap pushrods shape install flap horns used RC aileron linkages worked very well Connect pushrods adjust give neutral flap bellcrank center position Fin ish off lead-out ends sheet cen ter section Add wrap reinforcing tape around center break wrap around both flap bushings complete wing construction cut flaps out sheet balsa 3-in sheet will make both flaps stagger just right Sand airfoil shape hinge wing trailing edge Covering assembly plan use plastic covering should go ahead assemble model now youre using tis sue wing seal wood couple coats thinned dope sand smooth Apply tissue shrink New Install RO Models Check receiver battery status press button Small Light 1/2 oz Precise Rugged ORDER TODAY dealer Protune Corp 914 462-6452 PO Box 1808 Poughkeepaie NY 12601 apply five coats clear dope fuselage-to-wing joint important needs fitted carefully ensure ade quate strength Once have good fit epoxy wing place setting bend main land ing gear struts cut out install wheel covers Bend install main pushrod install elevator control horn Give wood few coats thinned dope sand fill rough spots Choosing color scheme hard part Pilatus PC-9 has featured sev eral aviation magazines various bright colors original model trimmed match second prototype PC-9 shown November 1985 issue Air Interna tional course military colors also appropriate have fun figuring out yours Apply color trim suit used automotive trim tape add aileron lines cockpit details fuss just makes model look better will fly same bother Now time add engine wheels tank fuel lines other lit tle details Check PC-9 proper bal ance wing warps correct neces sary Test run engine make sure tank feeds should head flying field Get ready inevitable comments 'Yes does look like souped-up Ringmaster its Platypus its Pilatus So goes build something quite ordinary air PC-9 does fly well high aspect ratio wing makes up ap parent lack wing area gives ship interesting look dihedral will attract lot questions has never problem Stunters Both upright inverted ship grooves flies level Enjoy PC-9 Its just high-tech trainer its fun flyand thats what its about FF Old-Timers/Baker Continued page 67 out picking very small nits difference can see wing mount OMS version does have somewhat information plan gives propeller choice 172 Model Aviation
Edition: Model Aviation - 1988/05
Page Numbers: 64, 65, 66, 171, 172
NO OCR TEXT AS ONE OF THE new generation small fighter trainers PC-9 making its mark aviation market de signed fill need trainer would teach transition basic air plane fighter airplane PC-9 first plane intended such role Pt-19 Pt-22 De Havilland Chipmunk intermediate fighter trainers too have low-wing two-place aircraft very nimble designed teach pilot mechanics what would take fly fighter plane what felt like plane went through combat ma neuvers As group airplanes have set standard military training aircraft PC-9 has added advantage modern technology help fill some missing pieces its predecessors sharp modern lines PC-9 its long thin nose tricycle landing gear make excellent design Control Line Stunt Ive always tried keep lines youd like nifty sport model capable flying AMA Control Line Stunt pattern try profile version air plane Europeans using train next generation fighter pilots U Dave Haught layout realistic possible Stunters design lends itself Stunt few modifications profile fuselage scale wing stabilizer modified suit Stunt parameters full-size PC-9 has flat center section tapering tips pro vide dihedral simplicitys sake Ive eliminated flat straight section wing retained dihedral ef fect its appearance flight perform ance nil PC-9 good stable platform capa ble full Stunt pattern Give try see its thick airfoil carries weight well try keep lightweitgh possible retain designed-in nimble ness Construction quite straightforward As generally best scratch-building cut out parts first balsa fuselage plank will need firm still light straight canopy area has spliced can cut very light balsa will notice construction enMay 1988 65 Clean views PC-9 design lends itself well Stunt circle leading edge fair ings stab support anti-spin stakes like De Havilland trainers I / BC-style landing gear mounting DIOCKS nold main gear place Replacement re bending should necessary painless effort Notice well nose cheek doublers fair wing give wing/fuselage joint extra measure structural Integrity business side Turbo-Trainer shows tank installation engine snuggled its fuselage cheeks Theres lots room adding muffler fuel tank pressurizing Full-Size Plans Available Page 180 pftAJYSft LA MACE gine mount area bit different stan dard procedure use %-in plywood en gine mount plate engine well nose gear wire Any good-quality fiveply will Attach nose gear wire plate J-bolts lock drop cvanoacrvlate CvA Fit nlvwncsd tn fuselage sheet glue together white glue dry locate drill engine mount holes install blind nuts Carve nose cheeks shape tack glue place Carve blocks contour spinner back fuse lage plank cheeks act doublers add lot strength model Sand stabilizer elevator edges shape Add balances elevator install hinges Cut slot fu selage carefully align glue stab place Before glue sets make sure stab aligned properly front top Continued page 171 Left The far end control system stark simplicity pushrod end has Z bend slid place before clevis other end secured hinges need free paint glue tor easy-working controls Note balanced elevators Pilatus trademark Right Flap hookup looks complicated RC aileron hardware used accommodate dihedral swept-forward wing trailing edge 66 Model Aviation ftF F__________ IAg ft-sn-S-yft-ft-SftCft-Fr ALL ROS S/52 55E0 ILSF15 545 $755 tjt n-F kn2t~_D 14Wftftmftft [v32][b-1-10-1-10]] FLA 0 3FftftLY 5554ff-z----------IFft PLO SEA SS2 MW PAFOftOC L1ft FY LA ftOOftft 5 ,a FIFft SOUL 1FLA ACER ftOLAES IFftftftF ICE StAR______________ UIS PliESTA PFAAFAAfl/NSA- PRASO &LLZ 5151PftW LA A/NICESt LIE SJftft TftMFRS 0FAS4SS5ftft C 0510 4454ff IIIIIFIftftPA54ftnSISEICSEAE satisfactory job getting material out pores metal repairs virtually impossible myself must have least 25 Har ters proto pans have rendered use less small cracks around various tapped mount ing holes Nelson Funny Plug evaluations have just finished rather extensive evaluation Nel son Funny Plug 4L iL models plus Nelson one-piece plug first observation 10%-nitro fuel much less taxing element three plugs 50%75%-nitro fuel used past Depending upon head clearance both 15 40 cu engines iL Funny Plug off 100-600 rpm 4L same head clearance Apparent ly 4L plug runs just shade hotter lL General head clearance both 15 Scale Rac ing engines 008 012 head clear ance Rat Race 40 constant-diameter pipe 010 015 K&B 40 engines require approximately 005-008 additional head clearance compared Supertigre 40 one-piece Nelson Funny Plug seems run about 200 rpm better 4L making best performer three candidates Unfortu nately its element somewhat thin find biggest distortion factor setting rheostat GloBee battery batterys amperage-level rheostat moved farther half distance its travel plug glows extremely bright distorts quickly en gine starts compression hits wire course peephole effect plug mini mizes element distortion element glowing bright under battery power distortion imminent carefully adjusting rheostat plug can caused give very faint glow very little distortion element after running pitting situation will course different battery type used important gauge connecting wire its length battery setup will have tached aircraft glow plugs heat ob served make sure rheostat adjusted properly Longer heavier-gauge wire will re quire higher setting rheostat Heavier lower-gauge and/or shorter wires will result opposite condition phenomenon also evident iL 4L plugs faint glow distinguishable plugs bat tery connected reliable starting impossible Cox 049 Mouse Racing engines have object another rather extensive study will share results next July column honest opinion temperamental Racing engines As always solicit comments photos Pilatus PC-9/Haught Continued page 66 side dry add leading edge fair ings look neat add con siderable strength well fairings drying sand the fin rudder glue together offset shown pians Glue assembled fin rudder fuselage top Use drafting triangle make sure everything square Add dorsal fin wing built two halves joined * Superior Igniters Improve starting Idle acceleration Youll notice power bargain fuels * Special Detergents Promote clean burning prevent residue buildup * Rust Inhibitors Protect engines corrosion Afterrun oil needed engines * Film Strength Additives Increase lubricity provide extra lean run protection * Anti-Wear Additives Help keep engines running peak performance longer * Satisfaction Guaranteed SIG CHAMPION 2-STROW FREE SHIPPING ON ORDERS OVER $1500FREIGHT COLLECT PINTQUART GALLON55 GAL DRUM 0%Nitromethane$315$450$1075$19695 5%Nitromethane$365$525$1275$26495 10%Nitromethane$415$550$1475$32995 15%Nitromethane$430$635$1675$38995 25%Nitromethane$515$795$2195$52495 35%Nitromethane$595$925$2695$66995 SIG PREMIL M -SThCI L itromethane$1425$29995 15%Nitromethane$1625 I$36495 THE CHOiCF ci KHAM K YS over 20 years SIG has blending finest quality model engine fuel available using st quality ingredients instance Methanol use 995% pure very best grade y can buy also use real 100% pure Nitromethane get full measure youve paid based honest percentage-of-volume od percentage weight SIG fuels contam 50-50 blend Bakers purest AA Castor Oil new improved Klotz Techniplate Synthetic Racing Oil maximum engine lubrication protection Based rience sincerely believe finest quality fuel can made price k dont take word try some judge yourself poces sosiect coenge sothoot notice See dealer first available order direct Call J 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO. Montezuma IA 50171 988 171 Paper Flying Scale Model Airplane $7 00 *ttJ PARTS PRE-CUT & PRE-PAINTED *BUILD & FLY IN TWO HOURS -I Ib CATALOG $750 Contains 1000s p~er airplanes Prom hostage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDING CataLog AIR papa aLtptana abova $1050 pluh $250 potaga p ATT-CHEKI ON-Board Battery Tester Saves Time. Saves Models BAiTCHEK RX-1 $1495 e USA plywood dihedral braces sheeted Begin laying ribs wing parts out will handy Mark rib locations spars slip ribs place bottom spar Once ribs place insert top spar Mark locations ribs lead ing trailing edges Pin leading trailing edges place Cover plans wax paper set completed wing assembly plans align parts everything pinned place over plans put glue joints suggest using white glue job cause allows final chance adjust bend out warps misalignments before sets Repeat procedure other panel wings setting cut out bellcrank mount install good 3-in metal nylon bellcrank Install lead-outs tach landing gear braces hard wood mounts using ample bracing Fit two wing panels together sand required dihedral angle Pin panel bench block other up Add plywood braces center rib bellcrank mount extra bracing feel necessary Once wing panel dry remove board drill holes lead-outs lead-out guides Bend flap pushrods shape install flap horns used RC aileron linkages worked very well Connect pushrods adjust give neutral flap bellcrank center position Fin ish off lead-out ends sheet cen ter section Add wrap reinforcing tape around center break wrap around both flap bushings complete wing construction cut flaps out sheet balsa 3-in sheet will make both flaps stagger just right Sand airfoil shape hinge wing trailing edge Covering assembly plan use plastic covering should go ahead assemble model now youre using tis sue wing seal wood couple coats thinned dope sand smooth Apply tissue shrink New Install RO Models Check receiver battery status press button Small Light 1/2 oz Precise Rugged ORDER TODAY dealer Protune Corp 914 462-6452 PO Box 1808 Poughkeepaie NY 12601 apply five coats clear dope fuselage-to-wing joint important needs fitted carefully ensure ade quate strength Once have good fit epoxy wing place setting bend main land ing gear struts cut out install wheel covers Bend install main pushrod install elevator control horn Give wood few coats thinned dope sand fill rough spots Choosing color scheme hard part Pilatus PC-9 has featured sev eral aviation magazines various bright colors original model trimmed match second prototype PC-9 shown November 1985 issue Air Interna tional course military colors also appropriate have fun figuring out yours Apply color trim suit used automotive trim tape add aileron lines cockpit details fuss just makes model look better will fly same bother Now time add engine wheels tank fuel lines other lit tle details Check PC-9 proper bal ance wing warps correct neces sary Test run engine make sure tank feeds should head flying field Get ready inevitable comments 'Yes does look like souped-up Ringmaster its Platypus its Pilatus So goes build something quite ordinary air PC-9 does fly well high aspect ratio wing makes up ap parent lack wing area gives ship interesting look dihedral will attract lot questions has never problem Stunters Both upright inverted ship grooves flies level Enjoy PC-9 Its just high-tech trainer its fun flyand thats what its about FF Old-Timers/Baker Continued page 67 out picking very small nits difference can see wing mount OMS version does have somewhat information plan gives propeller choice 172 Model Aviation