NO OCR TEXT THIS ARTICLE describes both model airplane friendship few years ago shown some photographs beautiful rubber-powered models made Czech engineer named Lubomir Koutny models have appeared modeling magazines Europe Since address back photos took upon myself write him letter marked beginning inter national exchange has continued spirit Czech modelers indistinguishable American counterparts particularly us caught up Flying Aces Club approach Rubber Scale seem choose same planes modeling subjects interesting difference Czech modelers build almost ships 1/20-scale except course Peanut Scale Events like Jumbo Scale minimum wingspan 36 havent caught yet although first mass-launch contest WW II Combat recently held some success correspondence Lubomir usually exchange plans contest results photographs three-view drawings first exchanges sent plan Piper Turbo Lance II subject article Although loved proportions attractive craft took quite get around building model began generally simplifying Lu bomirs plan changing some construction techniques fa miliar American modelers also con verted metric wood sizes dimen sions English system plan article reflects changes also depicts representative color scheme am particularly indebted Thomas M Knarr Penn Jersey Piper Sales Inc Easton PA help documenting color scheme Lubomirs plan based single three-view drawing some photographs took liberty making few small changes contour particularly nose intake model still very straight forward has now built flown equal success both sides Atlantic Full-size prototype Lance series aircraft direct descendant Pipers popular Cherokee Lance made its first test hop 1974 essentially stretched version Cherokee mated new wing incorporating retractable landing gear Four years later Lance given T-tail appellation Lance II Turbo Lance II further variant powered turbosupercharged Lyooming engine 300 hp T-tail excellent moments Turbo Lance II make natural subject Rubber Scale snappy paint job added bonus separates airplane usual run ho-hum private planes Fuselage construction Build two sides atop another directly over plan glued together tail post generally separate sides kitchen plastic wrap prevent sticking added strength cut side window pieces balsa made cross-laminating two 2 sheets Glue place cross members meas ured top view formers giving particular care maintaining straight structure Start widest part fuselageat about Former 6and work forward Former 1 add rear cross members cross members formers inserted top bottom side structure directly above below Vis sq uprights positions shown dots plan Also notice bottom fuselage Former 5 nose somewhat narrower top Former 6 tail post fuselage cross-section should have square 900 corners scoop carved soft balsa block hollowed out attached finished fuselage structure before covering Although scoop complex shape reference photographs should make relatively simple figure out wing built directly over plan Two slightly different tip treatments depicted Positioning outermost ribs inboard using bigger tip blocks will make sturdy structure like Lubomirs original plan Moving tip ribs outboard slightly smaller tip blocks shown ribs dotted lines will make lighter structure Adding bottom spar last step constructing wing Tail surfaces Although Lubomirs plan calls adjustable tail surfaces redesigned model fixed turned out mistake adjustable surfaces important flight-trimming felt-tip pen used draw simulated retracted landing gear tissue view also gives good perspective carved intake scoop wings leading edge prop assembly removed scoop colored-tissue trim seen detail scoop slightly indented illusion depth being amplified black paint 68 Model Aviation Full-Size Plans Available. See Page 164 11 1/16 X 3/16 tue xIe GUSSET -I- I/3Z OS/IA------Piper Turbo Lance IIBLACK TISSUE WINGWALKWING STRIPES OSONS 55 SOIii ___ ___ ___ ___ ___ ___ __F11 ___ Ii ___ ___SOFT HU_____BLOCK CONTROL SURFACE OUTLINE BOTH SIDESI 3 CENTER RIBS Zi7-INCH PBOP ETBINBERI/IA X3/IA TAPERED TO I/IA DO SOFT WIRE HINGES SOFT BLOCK /DOTS SHOW LOCATION OF CROSS MEMBERSI DESIGNED BY LUBONIR KOUTNY ICSSRI MODIFIED AND REDRAWN BY MARK FINEMAN lUG 61 Lj \ / TURNED BALSAOL model eventually added Use very fine craft wire available hobby shops spools usually beading hinges sure tail surfaces built fairly hard balsa T-tail vulnerable damage hard landings especially likely during flight trimming Finishing entire model covered white Japanese tissue shrunk fine mist rubbing alcohol given two coats thinned clear dope control surfaces wing drawn Pilot brand permanent razor-point pen guided metal straightedge mark ings colored tissue brown orange non-metallic gold yellow-orange colors fairly close fullsize aircraft sake clarity plan complex rear portion fuselage stripes shown together location wing stripes latter go both wings top bottom landing gear drawn wing fuselage up position Hying took good bit time get trim model just right now reliable flier used ready-made 7-in plastic propeller probably because props weight add ballast tail get model balance correctly Start balancing model main wing spar adding ballast weight front rear necessary balanced prop erly test glide trial-and-error make adjustments elevator rudder work very slowly moving surfaces no 42 time plane seems sensitive adjustments kind model flies tiny amount upelevator Once reasonably good glide ob tained added downthrust right thrust shimming propeller block point left wing tip washed-out slightly improved flight pattern both under power glide model will fly either left right under power seems better left power turn right glide turn friend Lubomir comments OK Turbo Lance climbs like Wake field glides well too can hardly beat Reference Jerram MF 1980 PrivateOwner Aircraft London Phoebus Illus trated International Aircraft Guide Series March 1986 69 Koutny liked Turbo Lance much built Peanutversion shown has flown indoors over 80 seconds Model sensitive trim changes proceed small steps
Edition: Model Aviation - 1986/03
Page Numbers: 67, 68, 69
NO OCR TEXT THIS ARTICLE describes both model airplane friendship few years ago shown some photographs beautiful rubber-powered models made Czech engineer named Lubomir Koutny models have appeared modeling magazines Europe Since address back photos took upon myself write him letter marked beginning inter national exchange has continued spirit Czech modelers indistinguishable American counterparts particularly us caught up Flying Aces Club approach Rubber Scale seem choose same planes modeling subjects interesting difference Czech modelers build almost ships 1/20-scale except course Peanut Scale Events like Jumbo Scale minimum wingspan 36 havent caught yet although first mass-launch contest WW II Combat recently held some success correspondence Lubomir usually exchange plans contest results photographs three-view drawings first exchanges sent plan Piper Turbo Lance II subject article Although loved proportions attractive craft took quite get around building model began generally simplifying Lu bomirs plan changing some construction techniques fa miliar American modelers also con verted metric wood sizes dimen sions English system plan article reflects changes also depicts representative color scheme am particularly indebted Thomas M Knarr Penn Jersey Piper Sales Inc Easton PA help documenting color scheme Lubomirs plan based single three-view drawing some photographs took liberty making few small changes contour particularly nose intake model still very straight forward has now built flown equal success both sides Atlantic Full-size prototype Lance series aircraft direct descendant Pipers popular Cherokee Lance made its first test hop 1974 essentially stretched version Cherokee mated new wing incorporating retractable landing gear Four years later Lance given T-tail appellation Lance II Turbo Lance II further variant powered turbosupercharged Lyooming engine 300 hp T-tail excellent moments Turbo Lance II make natural subject Rubber Scale snappy paint job added bonus separates airplane usual run ho-hum private planes Fuselage construction Build two sides atop another directly over plan glued together tail post generally separate sides kitchen plastic wrap prevent sticking added strength cut side window pieces balsa made cross-laminating two 2 sheets Glue place cross members meas ured top view formers giving particular care maintaining straight structure Start widest part fuselageat about Former 6and work forward Former 1 add rear cross members cross members formers inserted top bottom side structure directly above below Vis sq uprights positions shown dots plan Also notice bottom fuselage Former 5 nose somewhat narrower top Former 6 tail post fuselage cross-section should have square 900 corners scoop carved soft balsa block hollowed out attached finished fuselage structure before covering Although scoop complex shape reference photographs should make relatively simple figure out wing built directly over plan Two slightly different tip treatments depicted Positioning outermost ribs inboard using bigger tip blocks will make sturdy structure like Lubomirs original plan Moving tip ribs outboard slightly smaller tip blocks shown ribs dotted lines will make lighter structure Adding bottom spar last step constructing wing Tail surfaces Although Lubomirs plan calls adjustable tail surfaces redesigned model fixed turned out mistake adjustable surfaces important flight-trimming felt-tip pen used draw simulated retracted landing gear tissue view also gives good perspective carved intake scoop wings leading edge prop assembly removed scoop colored-tissue trim seen detail scoop slightly indented illusion depth being amplified black paint 68 Model Aviation Full-Size Plans Available. See Page 164 11 1/16 X 3/16 tue xIe GUSSET -I- I/3Z OS/IA------Piper Turbo Lance IIBLACK TISSUE WINGWALKWING STRIPES OSONS 55 SOIii ___ ___ ___ ___ ___ ___ __F11 ___ Ii ___ ___SOFT HU_____BLOCK CONTROL SURFACE OUTLINE BOTH SIDESI 3 CENTER RIBS Zi7-INCH PBOP ETBINBERI/IA X3/IA TAPERED TO I/IA DO SOFT WIRE HINGES SOFT BLOCK /DOTS SHOW LOCATION OF CROSS MEMBERSI DESIGNED BY LUBONIR KOUTNY ICSSRI MODIFIED AND REDRAWN BY MARK FINEMAN lUG 61 Lj \ / TURNED BALSAOL model eventually added Use very fine craft wire available hobby shops spools usually beading hinges sure tail surfaces built fairly hard balsa T-tail vulnerable damage hard landings especially likely during flight trimming Finishing entire model covered white Japanese tissue shrunk fine mist rubbing alcohol given two coats thinned clear dope control surfaces wing drawn Pilot brand permanent razor-point pen guided metal straightedge mark ings colored tissue brown orange non-metallic gold yellow-orange colors fairly close fullsize aircraft sake clarity plan complex rear portion fuselage stripes shown together location wing stripes latter go both wings top bottom landing gear drawn wing fuselage up position Hying took good bit time get trim model just right now reliable flier used ready-made 7-in plastic propeller probably because props weight add ballast tail get model balance correctly Start balancing model main wing spar adding ballast weight front rear necessary balanced prop erly test glide trial-and-error make adjustments elevator rudder work very slowly moving surfaces no 42 time plane seems sensitive adjustments kind model flies tiny amount upelevator Once reasonably good glide ob tained added downthrust right thrust shimming propeller block point left wing tip washed-out slightly improved flight pattern both under power glide model will fly either left right under power seems better left power turn right glide turn friend Lubomir comments OK Turbo Lance climbs like Wake field glides well too can hardly beat Reference Jerram MF 1980 PrivateOwner Aircraft London Phoebus Illus trated International Aircraft Guide Series March 1986 69 Koutny liked Turbo Lance much built Peanutversion shown has flown indoors over 80 seconds Model sensitive trim changes proceed small steps
Edition: Model Aviation - 1986/03
Page Numbers: 67, 68, 69
NO OCR TEXT THIS ARTICLE describes both model airplane friendship few years ago shown some photographs beautiful rubber-powered models made Czech engineer named Lubomir Koutny models have appeared modeling magazines Europe Since address back photos took upon myself write him letter marked beginning inter national exchange has continued spirit Czech modelers indistinguishable American counterparts particularly us caught up Flying Aces Club approach Rubber Scale seem choose same planes modeling subjects interesting difference Czech modelers build almost ships 1/20-scale except course Peanut Scale Events like Jumbo Scale minimum wingspan 36 havent caught yet although first mass-launch contest WW II Combat recently held some success correspondence Lubomir usually exchange plans contest results photographs three-view drawings first exchanges sent plan Piper Turbo Lance II subject article Although loved proportions attractive craft took quite get around building model began generally simplifying Lu bomirs plan changing some construction techniques fa miliar American modelers also con verted metric wood sizes dimen sions English system plan article reflects changes also depicts representative color scheme am particularly indebted Thomas M Knarr Penn Jersey Piper Sales Inc Easton PA help documenting color scheme Lubomirs plan based single three-view drawing some photographs took liberty making few small changes contour particularly nose intake model still very straight forward has now built flown equal success both sides Atlantic Full-size prototype Lance series aircraft direct descendant Pipers popular Cherokee Lance made its first test hop 1974 essentially stretched version Cherokee mated new wing incorporating retractable landing gear Four years later Lance given T-tail appellation Lance II Turbo Lance II further variant powered turbosupercharged Lyooming engine 300 hp T-tail excellent moments Turbo Lance II make natural subject Rubber Scale snappy paint job added bonus separates airplane usual run ho-hum private planes Fuselage construction Build two sides atop another directly over plan glued together tail post generally separate sides kitchen plastic wrap prevent sticking added strength cut side window pieces balsa made cross-laminating two 2 sheets Glue place cross members meas ured top view formers giving particular care maintaining straight structure Start widest part fuselageat about Former 6and work forward Former 1 add rear cross members cross members formers inserted top bottom side structure directly above below Vis sq uprights positions shown dots plan Also notice bottom fuselage Former 5 nose somewhat narrower top Former 6 tail post fuselage cross-section should have square 900 corners scoop carved soft balsa block hollowed out attached finished fuselage structure before covering Although scoop complex shape reference photographs should make relatively simple figure out wing built directly over plan Two slightly different tip treatments depicted Positioning outermost ribs inboard using bigger tip blocks will make sturdy structure like Lubomirs original plan Moving tip ribs outboard slightly smaller tip blocks shown ribs dotted lines will make lighter structure Adding bottom spar last step constructing wing Tail surfaces Although Lubomirs plan calls adjustable tail surfaces redesigned model fixed turned out mistake adjustable surfaces important flight-trimming felt-tip pen used draw simulated retracted landing gear tissue view also gives good perspective carved intake scoop wings leading edge prop assembly removed scoop colored-tissue trim seen detail scoop slightly indented illusion depth being amplified black paint 68 Model Aviation Full-Size Plans Available. See Page 164 11 1/16 X 3/16 tue xIe GUSSET -I- I/3Z OS/IA------Piper Turbo Lance IIBLACK TISSUE WINGWALKWING STRIPES OSONS 55 SOIii ___ ___ ___ ___ ___ ___ __F11 ___ Ii ___ ___SOFT HU_____BLOCK CONTROL SURFACE OUTLINE BOTH SIDESI 3 CENTER RIBS Zi7-INCH PBOP ETBINBERI/IA X3/IA TAPERED TO I/IA DO SOFT WIRE HINGES SOFT BLOCK /DOTS SHOW LOCATION OF CROSS MEMBERSI DESIGNED BY LUBONIR KOUTNY ICSSRI MODIFIED AND REDRAWN BY MARK FINEMAN lUG 61 Lj \ / TURNED BALSAOL model eventually added Use very fine craft wire available hobby shops spools usually beading hinges sure tail surfaces built fairly hard balsa T-tail vulnerable damage hard landings especially likely during flight trimming Finishing entire model covered white Japanese tissue shrunk fine mist rubbing alcohol given two coats thinned clear dope control surfaces wing drawn Pilot brand permanent razor-point pen guided metal straightedge mark ings colored tissue brown orange non-metallic gold yellow-orange colors fairly close fullsize aircraft sake clarity plan complex rear portion fuselage stripes shown together location wing stripes latter go both wings top bottom landing gear drawn wing fuselage up position Hying took good bit time get trim model just right now reliable flier used ready-made 7-in plastic propeller probably because props weight add ballast tail get model balance correctly Start balancing model main wing spar adding ballast weight front rear necessary balanced prop erly test glide trial-and-error make adjustments elevator rudder work very slowly moving surfaces no 42 time plane seems sensitive adjustments kind model flies tiny amount upelevator Once reasonably good glide ob tained added downthrust right thrust shimming propeller block point left wing tip washed-out slightly improved flight pattern both under power glide model will fly either left right under power seems better left power turn right glide turn friend Lubomir comments OK Turbo Lance climbs like Wake field glides well too can hardly beat Reference Jerram MF 1980 PrivateOwner Aircraft London Phoebus Illus trated International Aircraft Guide Series March 1986 69 Koutny liked Turbo Lance much built Peanutversion shown has flown indoors over 80 seconds Model sensitive trim changes proceed small steps