Tom Kallavang Park Ridge IL Challenger Otto Heithecker design several years age Guys savers can find construction article December 1975 Model Aviation full-size plans available Heithecker THE BIGGEST Soaring event 1980 took place August 23 24 event League Silent Flights Regional Tournament Fourteen sites included Ontario Canada two Pennsylvania two Florida two California accommodate over-3500 LSF members sites also selected Virginia Detroit Chicago Oak Ridge TN Dallas Denver Tacoma Events year included four-minute dura tion task beginning day followed 10-minute duration tasks total seven rounds flown over two days Contest Directors might take note format Scheduling four-minute task morning gives equal chance bad air early am should improve dramatic ally before round ends later fliers dont smoke Out scheduled earlier Classes year Unlimited Standard Scale could enter Two-Meter ship either first two categories challenge larger wingspans However plaque awarded site best per formance Two-Meter bird case youve wondering whether 2M League Silent Flights 1980 annual affair involved 14 sites throughout US Canada would easy 3500-plus members participate Two-Meter Sailplanes coming stronger ever U Dan Pruss 22 Model Aviation lot heavies Detroit contest Front row left Warren Plohr 1SF VP Gordon Pearson 1SF president Art Slagle Contest Director Warren Tiahrt 1SF secretary John Humphreys winner Two-Meter Back Row Eric Tiahrt Jr Senior winner Don Patter son Standard winner Dennis Steffinoski Walt Hill Standard 3rd Ken Bates 1SF Level V Bob Robinson Pat Flinn newest No 15 1SF level V Unlimited 3rd Ken Bates Michigan Merlynwon Unlimited Detroit 3493 points Ken another elite holders 1SF Level V Photos Jim Bemson Bob Curvy Dan Pruss ships have found niche competition world consider high number entries AMA Nationals fact inter national event will held second year California 1981 see November RC Soaring column LSF Regionals year 2M fliers made niche little larger Orlando FL 2M sailplane won Standard class did Ontario Canada Don Patterson did same thing Detroit contestthat won Standard class Two-Meter planebut wasnt good enough earn him Best Performance 2M plaque John Humphreys scored fourth Unlimited Two-Meter ship outpointing Patterson 3110 2984 2M honors above ponder organizers future contests might wish weigh Out merits scheduling Two-Meter event some other event next bash some other could size over two meters mentioned couple dozen columns back Two-Meter class needed some recog nition way ofthe contest circuit last three LSF Tournaments have added further proof class stay Scale usual thin splattering entries across 14 sites high five entries both Warminster PA Chicago Directors go bonkers left photo Ken Olsen St Louis shows at-rest Two-Meter ship slight load dropped tips pop place Voila Two-Meter ship becomes Standard class Contest Director runs rule book January 1981 23 U Neil Liptak inspects Jack Rakusans Scale en try Svensen-kit K8B Neil designed patches Top scorers Unlimited Warminster PA L-R Josh Glaab also highest scorerof 14 1977-80 LSF Tournament 79 US team regions Gordon Stratton 2nd Gerry Zeigenfuse 3rd Beautiful gold/silver/bronze plaques No respect LSF President Gordon Pearson Bob Robinson Lansing Ml Aquila accepts Scale plaquenot knowing Grande Unlimited 2nd Bob Hicks behindtrash sign attached back Southern California honors holding largest contest 67 entries second Detroit 58 Weather part Soaring typeyet event spread out over 3000 miles its impractical current scoring methods pick overall winner worthy note Josh Glaab high-point scorer Warminster entrant tallied 3586 out possible 3648 Second Jerry Bower Kanata Ontario 3576 Third place 1978 AMA Nationals winner Jim Fitch Tennessee 3575 points overall winner recognized future tournaments formula must devised covers weather conditions Glaabs 3576 points commendable score poor guys gals flying middle hurricane couldnt expected mount up points two days Yet top flier weather surely worthy being top dog Dave Pelts California suggests man-on-man competition group has run number contests over years worked out lot bugs Theyve worked out point regional tournament based man-to-man concept could held according Dave because bad weather five minutes best can 10-minute max contest surely fives good lOs booming lift recognition should made consistency Some organizers have shied away man-on-man concept because complexities scoring setting up matrix Through contests Peltz has also Continued page 99 24 Model Aviation spare wheel cover Olsen van transported Helen Ken Chicago non uupp prunnuau nu,ho Suds City Soar-Ins Milwaukee black-and-gold Aquila Grande Neat color/trim sets apart winners Chicago Bob Miller Urbana IL TWo-ULUr nuru Bob Steele Ft Wayne IN Legionaire Tom Tack Dwight IL parts everything Standard class winner 0D Miller ana nis tail-rirst canara iwo-Meter original assign uon isa Free Flighter suppose could have known plc 0111 MCiC5K5 05 New T0K iauncnes nis iwo-Meter snip wnicn flown Unlimited class Two-Meter size getting more popular tsene Uurnoski scratch-built Twin Astir Itwas finished atthe last minute flew very well BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 1/4 1/2 2 oz EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec HOT STUFF ELU LINEE t4E~ HOT STUFF GAP FILLING FILLETING POSITIONABLE HIGH VISCOSITY-TIMED BOND 10 25 sec 1/2 ozUse like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD O BOX 836 SIMI CA 93062 522-0062 model keeping original also has problem flying flies like full-scale aircraft Coordinated rudder must used turns otherwise turns appear stilted strange model weighed 9 lb netted wing loading 20 oz per sq ft first takeoff unexpected gave little power get ship rolling added little power get rudder take effect plane suddenly lifted off Later checked position throttle tached engine turning over about 7000 rpm 13-6 Top Flite prop K&B 61 will give maximum 10000 rpm prop flight handles best throttled back slightly about 8000 rpm thought reducing engine size 45 realized additional power bigger engine might help should plane get tight spot has Also putting smaller engine would reduce weight nose aircraft would require addition some lead weight keep correct center-of-gravity Otherwise ship easy fly floats over hot runway like old 40 hp Cub Under conditions necessary feed little down cause ship descend faster rate make wheel landing on-board ignition system asset because rpm too high plane will sink 2000rpm prop acts disk plate causing drag on-board ignition keeps fire going very low speeds Although plane lot work derived great satisfaction meeting challenges provided hope will much Enjoy Sources Classic Models PO Box 681 Melville NY 11746 Documentation Booklet Church Midwing $300 Plans 1-in Church Midwing $800 Experimental Aircraft Association Inc EAA Air Museum Foundation Inc Franklin WI 1931 Flying Glider Manual $200 Caltronic Laboratory 461 5 Cochran Ave PO Box 36356 Los Angeles CA 90036 Catalog Precision Model Engineering Instru ment Componentsfor stainless steel machine screws etc no charge Proctor Ent Corp PO Box 9641 San Diego 92109 Turnbuckles rigging control cable pulleys Send catalog $100 Hobbypoxy Products 32 Pine St Rockaway NJ 07866 Instructions balloon method fiberglassing no charge Coverite 420 Babylon Rd Horsham PA Information covering material send pre addressed stamped envelope LSF Regionals/Pruss Continued page 24 streamlined system experience can benefit us interested system Dave has offered provide rules organizers guide near future next year LSF officers havent yet decided whether 1981 will regional tournament international Because F3B World Championships have two-year program league front office trying set LSF schedule would dovetail F3B Team Selection Program LSF funded tournaments Except contributions made members send level forms league depends contest financial support current officers wish thank members past contributions Any input LSF can made contact ing following Gordon Pearson President 8232 Earhart Road South Lyon MI 48178 Warren Plohr Vice President 5395 Sunset Oval North Olmstead OH 44070 Warren Tiahrt Secretary 7647 Twilight Court Clarkston MI 48016 Keith Finkenbiner Treasurer 907 Barley Drive Wilmington DE 19807 Applicants membership can write directly League Silent Flight PO Box 39068 Chicago IL 60639 Include self-addressed envelope Good Lift RC Scale/Wischers Continued page 27 some additional weight nose balance Usually means batteries must located udner fuel tank long extension cord required have run long extension cords through models some profusion batteries remote servos no ill effects Another trick help balance tail-heavy condi tion use extra large fuel tank nose space permits plane will carrying much fuel needed contests model weighed fuel using fuel ballast can help keep within weight limits risk method temptation use fuel long flight subsequent tall-heavy landing An alternate system would employ two tanks greater effect rear tank feeding ballast tank located near engine Always land ballast tank full Continued page 106 Januafy 1981 99
Edition: Model Aviation - 1981/01
Page Numbers: 22, 23, 24, 99
Tom Kallavang Park Ridge IL Challenger Otto Heithecker design several years age Guys savers can find construction article December 1975 Model Aviation full-size plans available Heithecker THE BIGGEST Soaring event 1980 took place August 23 24 event League Silent Flights Regional Tournament Fourteen sites included Ontario Canada two Pennsylvania two Florida two California accommodate over-3500 LSF members sites also selected Virginia Detroit Chicago Oak Ridge TN Dallas Denver Tacoma Events year included four-minute dura tion task beginning day followed 10-minute duration tasks total seven rounds flown over two days Contest Directors might take note format Scheduling four-minute task morning gives equal chance bad air early am should improve dramatic ally before round ends later fliers dont smoke Out scheduled earlier Classes year Unlimited Standard Scale could enter Two-Meter ship either first two categories challenge larger wingspans However plaque awarded site best per formance Two-Meter bird case youve wondering whether 2M League Silent Flights 1980 annual affair involved 14 sites throughout US Canada would easy 3500-plus members participate Two-Meter Sailplanes coming stronger ever U Dan Pruss 22 Model Aviation lot heavies Detroit contest Front row left Warren Plohr 1SF VP Gordon Pearson 1SF president Art Slagle Contest Director Warren Tiahrt 1SF secretary John Humphreys winner Two-Meter Back Row Eric Tiahrt Jr Senior winner Don Patter son Standard winner Dennis Steffinoski Walt Hill Standard 3rd Ken Bates 1SF Level V Bob Robinson Pat Flinn newest No 15 1SF level V Unlimited 3rd Ken Bates Michigan Merlynwon Unlimited Detroit 3493 points Ken another elite holders 1SF Level V Photos Jim Bemson Bob Curvy Dan Pruss ships have found niche competition world consider high number entries AMA Nationals fact inter national event will held second year California 1981 see November RC Soaring column LSF Regionals year 2M fliers made niche little larger Orlando FL 2M sailplane won Standard class did Ontario Canada Don Patterson did same thing Detroit contestthat won Standard class Two-Meter planebut wasnt good enough earn him Best Performance 2M plaque John Humphreys scored fourth Unlimited Two-Meter ship outpointing Patterson 3110 2984 2M honors above ponder organizers future contests might wish weigh Out merits scheduling Two-Meter event some other event next bash some other could size over two meters mentioned couple dozen columns back Two-Meter class needed some recog nition way ofthe contest circuit last three LSF Tournaments have added further proof class stay Scale usual thin splattering entries across 14 sites high five entries both Warminster PA Chicago Directors go bonkers left photo Ken Olsen St Louis shows at-rest Two-Meter ship slight load dropped tips pop place Voila Two-Meter ship becomes Standard class Contest Director runs rule book January 1981 23 U Neil Liptak inspects Jack Rakusans Scale en try Svensen-kit K8B Neil designed patches Top scorers Unlimited Warminster PA L-R Josh Glaab also highest scorerof 14 1977-80 LSF Tournament 79 US team regions Gordon Stratton 2nd Gerry Zeigenfuse 3rd Beautiful gold/silver/bronze plaques No respect LSF President Gordon Pearson Bob Robinson Lansing Ml Aquila accepts Scale plaquenot knowing Grande Unlimited 2nd Bob Hicks behindtrash sign attached back Southern California honors holding largest contest 67 entries second Detroit 58 Weather part Soaring typeyet event spread out over 3000 miles its impractical current scoring methods pick overall winner worthy note Josh Glaab high-point scorer Warminster entrant tallied 3586 out possible 3648 Second Jerry Bower Kanata Ontario 3576 Third place 1978 AMA Nationals winner Jim Fitch Tennessee 3575 points overall winner recognized future tournaments formula must devised covers weather conditions Glaabs 3576 points commendable score poor guys gals flying middle hurricane couldnt expected mount up points two days Yet top flier weather surely worthy being top dog Dave Pelts California suggests man-on-man competition group has run number contests over years worked out lot bugs Theyve worked out point regional tournament based man-to-man concept could held according Dave because bad weather five minutes best can 10-minute max contest surely fives good lOs booming lift recognition should made consistency Some organizers have shied away man-on-man concept because complexities scoring setting up matrix Through contests Peltz has also Continued page 99 24 Model Aviation spare wheel cover Olsen van transported Helen Ken Chicago non uupp prunnuau nu,ho Suds City Soar-Ins Milwaukee black-and-gold Aquila Grande Neat color/trim sets apart winners Chicago Bob Miller Urbana IL TWo-ULUr nuru Bob Steele Ft Wayne IN Legionaire Tom Tack Dwight IL parts everything Standard class winner 0D Miller ana nis tail-rirst canara iwo-Meter original assign uon isa Free Flighter suppose could have known plc 0111 MCiC5K5 05 New T0K iauncnes nis iwo-Meter snip wnicn flown Unlimited class Two-Meter size getting more popular tsene Uurnoski scratch-built Twin Astir Itwas finished atthe last minute flew very well BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 1/4 1/2 2 oz EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec HOT STUFF ELU LINEE t4E~ HOT STUFF GAP FILLING FILLETING POSITIONABLE HIGH VISCOSITY-TIMED BOND 10 25 sec 1/2 ozUse like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD O BOX 836 SIMI CA 93062 522-0062 model keeping original also has problem flying flies like full-scale aircraft Coordinated rudder must used turns otherwise turns appear stilted strange model weighed 9 lb netted wing loading 20 oz per sq ft first takeoff unexpected gave little power get ship rolling added little power get rudder take effect plane suddenly lifted off Later checked position throttle tached engine turning over about 7000 rpm 13-6 Top Flite prop K&B 61 will give maximum 10000 rpm prop flight handles best throttled back slightly about 8000 rpm thought reducing engine size 45 realized additional power bigger engine might help should plane get tight spot has Also putting smaller engine would reduce weight nose aircraft would require addition some lead weight keep correct center-of-gravity Otherwise ship easy fly floats over hot runway like old 40 hp Cub Under conditions necessary feed little down cause ship descend faster rate make wheel landing on-board ignition system asset because rpm too high plane will sink 2000rpm prop acts disk plate causing drag on-board ignition keeps fire going very low speeds Although plane lot work derived great satisfaction meeting challenges provided hope will much Enjoy Sources Classic Models PO Box 681 Melville NY 11746 Documentation Booklet Church Midwing $300 Plans 1-in Church Midwing $800 Experimental Aircraft Association Inc EAA Air Museum Foundation Inc Franklin WI 1931 Flying Glider Manual $200 Caltronic Laboratory 461 5 Cochran Ave PO Box 36356 Los Angeles CA 90036 Catalog Precision Model Engineering Instru ment Componentsfor stainless steel machine screws etc no charge Proctor Ent Corp PO Box 9641 San Diego 92109 Turnbuckles rigging control cable pulleys Send catalog $100 Hobbypoxy Products 32 Pine St Rockaway NJ 07866 Instructions balloon method fiberglassing no charge Coverite 420 Babylon Rd Horsham PA Information covering material send pre addressed stamped envelope LSF Regionals/Pruss Continued page 24 streamlined system experience can benefit us interested system Dave has offered provide rules organizers guide near future next year LSF officers havent yet decided whether 1981 will regional tournament international Because F3B World Championships have two-year program league front office trying set LSF schedule would dovetail F3B Team Selection Program LSF funded tournaments Except contributions made members send level forms league depends contest financial support current officers wish thank members past contributions Any input LSF can made contact ing following Gordon Pearson President 8232 Earhart Road South Lyon MI 48178 Warren Plohr Vice President 5395 Sunset Oval North Olmstead OH 44070 Warren Tiahrt Secretary 7647 Twilight Court Clarkston MI 48016 Keith Finkenbiner Treasurer 907 Barley Drive Wilmington DE 19807 Applicants membership can write directly League Silent Flight PO Box 39068 Chicago IL 60639 Include self-addressed envelope Good Lift RC Scale/Wischers Continued page 27 some additional weight nose balance Usually means batteries must located udner fuel tank long extension cord required have run long extension cords through models some profusion batteries remote servos no ill effects Another trick help balance tail-heavy condi tion use extra large fuel tank nose space permits plane will carrying much fuel needed contests model weighed fuel using fuel ballast can help keep within weight limits risk method temptation use fuel long flight subsequent tall-heavy landing An alternate system would employ two tanks greater effect rear tank feeding ballast tank located near engine Always land ballast tank full Continued page 106 Januafy 1981 99
Edition: Model Aviation - 1981/01
Page Numbers: 22, 23, 24, 99
Tom Kallavang Park Ridge IL Challenger Otto Heithecker design several years age Guys savers can find construction article December 1975 Model Aviation full-size plans available Heithecker THE BIGGEST Soaring event 1980 took place August 23 24 event League Silent Flights Regional Tournament Fourteen sites included Ontario Canada two Pennsylvania two Florida two California accommodate over-3500 LSF members sites also selected Virginia Detroit Chicago Oak Ridge TN Dallas Denver Tacoma Events year included four-minute dura tion task beginning day followed 10-minute duration tasks total seven rounds flown over two days Contest Directors might take note format Scheduling four-minute task morning gives equal chance bad air early am should improve dramatic ally before round ends later fliers dont smoke Out scheduled earlier Classes year Unlimited Standard Scale could enter Two-Meter ship either first two categories challenge larger wingspans However plaque awarded site best per formance Two-Meter bird case youve wondering whether 2M League Silent Flights 1980 annual affair involved 14 sites throughout US Canada would easy 3500-plus members participate Two-Meter Sailplanes coming stronger ever U Dan Pruss 22 Model Aviation lot heavies Detroit contest Front row left Warren Plohr 1SF VP Gordon Pearson 1SF president Art Slagle Contest Director Warren Tiahrt 1SF secretary John Humphreys winner Two-Meter Back Row Eric Tiahrt Jr Senior winner Don Patter son Standard winner Dennis Steffinoski Walt Hill Standard 3rd Ken Bates 1SF Level V Bob Robinson Pat Flinn newest No 15 1SF level V Unlimited 3rd Ken Bates Michigan Merlynwon Unlimited Detroit 3493 points Ken another elite holders 1SF Level V Photos Jim Bemson Bob Curvy Dan Pruss ships have found niche competition world consider high number entries AMA Nationals fact inter national event will held second year California 1981 see November RC Soaring column LSF Regionals year 2M fliers made niche little larger Orlando FL 2M sailplane won Standard class did Ontario Canada Don Patterson did same thing Detroit contestthat won Standard class Two-Meter planebut wasnt good enough earn him Best Performance 2M plaque John Humphreys scored fourth Unlimited Two-Meter ship outpointing Patterson 3110 2984 2M honors above ponder organizers future contests might wish weigh Out merits scheduling Two-Meter event some other event next bash some other could size over two meters mentioned couple dozen columns back Two-Meter class needed some recog nition way ofthe contest circuit last three LSF Tournaments have added further proof class stay Scale usual thin splattering entries across 14 sites high five entries both Warminster PA Chicago Directors go bonkers left photo Ken Olsen St Louis shows at-rest Two-Meter ship slight load dropped tips pop place Voila Two-Meter ship becomes Standard class Contest Director runs rule book January 1981 23 U Neil Liptak inspects Jack Rakusans Scale en try Svensen-kit K8B Neil designed patches Top scorers Unlimited Warminster PA L-R Josh Glaab also highest scorerof 14 1977-80 LSF Tournament 79 US team regions Gordon Stratton 2nd Gerry Zeigenfuse 3rd Beautiful gold/silver/bronze plaques No respect LSF President Gordon Pearson Bob Robinson Lansing Ml Aquila accepts Scale plaquenot knowing Grande Unlimited 2nd Bob Hicks behindtrash sign attached back Southern California honors holding largest contest 67 entries second Detroit 58 Weather part Soaring typeyet event spread out over 3000 miles its impractical current scoring methods pick overall winner worthy note Josh Glaab high-point scorer Warminster entrant tallied 3586 out possible 3648 Second Jerry Bower Kanata Ontario 3576 Third place 1978 AMA Nationals winner Jim Fitch Tennessee 3575 points overall winner recognized future tournaments formula must devised covers weather conditions Glaabs 3576 points commendable score poor guys gals flying middle hurricane couldnt expected mount up points two days Yet top flier weather surely worthy being top dog Dave Pelts California suggests man-on-man competition group has run number contests over years worked out lot bugs Theyve worked out point regional tournament based man-to-man concept could held according Dave because bad weather five minutes best can 10-minute max contest surely fives good lOs booming lift recognition should made consistency Some organizers have shied away man-on-man concept because complexities scoring setting up matrix Through contests Peltz has also Continued page 99 24 Model Aviation spare wheel cover Olsen van transported Helen Ken Chicago non uupp prunnuau nu,ho Suds City Soar-Ins Milwaukee black-and-gold Aquila Grande Neat color/trim sets apart winners Chicago Bob Miller Urbana IL TWo-ULUr nuru Bob Steele Ft Wayne IN Legionaire Tom Tack Dwight IL parts everything Standard class winner 0D Miller ana nis tail-rirst canara iwo-Meter original assign uon isa Free Flighter suppose could have known plc 0111 MCiC5K5 05 New T0K iauncnes nis iwo-Meter snip wnicn flown Unlimited class Two-Meter size getting more popular tsene Uurnoski scratch-built Twin Astir Itwas finished atthe last minute flew very well BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 1/4 1/2 2 oz EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec HOT STUFF ELU LINEE t4E~ HOT STUFF GAP FILLING FILLETING POSITIONABLE HIGH VISCOSITY-TIMED BOND 10 25 sec 1/2 ozUse like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD O BOX 836 SIMI CA 93062 522-0062 model keeping original also has problem flying flies like full-scale aircraft Coordinated rudder must used turns otherwise turns appear stilted strange model weighed 9 lb netted wing loading 20 oz per sq ft first takeoff unexpected gave little power get ship rolling added little power get rudder take effect plane suddenly lifted off Later checked position throttle tached engine turning over about 7000 rpm 13-6 Top Flite prop K&B 61 will give maximum 10000 rpm prop flight handles best throttled back slightly about 8000 rpm thought reducing engine size 45 realized additional power bigger engine might help should plane get tight spot has Also putting smaller engine would reduce weight nose aircraft would require addition some lead weight keep correct center-of-gravity Otherwise ship easy fly floats over hot runway like old 40 hp Cub Under conditions necessary feed little down cause ship descend faster rate make wheel landing on-board ignition system asset because rpm too high plane will sink 2000rpm prop acts disk plate causing drag on-board ignition keeps fire going very low speeds Although plane lot work derived great satisfaction meeting challenges provided hope will much Enjoy Sources Classic Models PO Box 681 Melville NY 11746 Documentation Booklet Church Midwing $300 Plans 1-in Church Midwing $800 Experimental Aircraft Association Inc EAA Air Museum Foundation Inc Franklin WI 1931 Flying Glider Manual $200 Caltronic Laboratory 461 5 Cochran Ave PO Box 36356 Los Angeles CA 90036 Catalog Precision Model Engineering Instru ment Componentsfor stainless steel machine screws etc no charge Proctor Ent Corp PO Box 9641 San Diego 92109 Turnbuckles rigging control cable pulleys Send catalog $100 Hobbypoxy Products 32 Pine St Rockaway NJ 07866 Instructions balloon method fiberglassing no charge Coverite 420 Babylon Rd Horsham PA Information covering material send pre addressed stamped envelope LSF Regionals/Pruss Continued page 24 streamlined system experience can benefit us interested system Dave has offered provide rules organizers guide near future next year LSF officers havent yet decided whether 1981 will regional tournament international Because F3B World Championships have two-year program league front office trying set LSF schedule would dovetail F3B Team Selection Program LSF funded tournaments Except contributions made members send level forms league depends contest financial support current officers wish thank members past contributions Any input LSF can made contact ing following Gordon Pearson President 8232 Earhart Road South Lyon MI 48178 Warren Plohr Vice President 5395 Sunset Oval North Olmstead OH 44070 Warren Tiahrt Secretary 7647 Twilight Court Clarkston MI 48016 Keith Finkenbiner Treasurer 907 Barley Drive Wilmington DE 19807 Applicants membership can write directly League Silent Flight PO Box 39068 Chicago IL 60639 Include self-addressed envelope Good Lift RC Scale/Wischers Continued page 27 some additional weight nose balance Usually means batteries must located udner fuel tank long extension cord required have run long extension cords through models some profusion batteries remote servos no ill effects Another trick help balance tail-heavy condi tion use extra large fuel tank nose space permits plane will carrying much fuel needed contests model weighed fuel using fuel ballast can help keep within weight limits risk method temptation use fuel long flight subsequent tall-heavy landing An alternate system would employ two tanks greater effect rear tank feeding ballast tank located near engine Always land ballast tank full Continued page 106 Januafy 1981 99
Edition: Model Aviation - 1981/01
Page Numbers: 22, 23, 24, 99
Tom Kallavang Park Ridge IL Challenger Otto Heithecker design several years age Guys savers can find construction article December 1975 Model Aviation full-size plans available Heithecker THE BIGGEST Soaring event 1980 took place August 23 24 event League Silent Flights Regional Tournament Fourteen sites included Ontario Canada two Pennsylvania two Florida two California accommodate over-3500 LSF members sites also selected Virginia Detroit Chicago Oak Ridge TN Dallas Denver Tacoma Events year included four-minute dura tion task beginning day followed 10-minute duration tasks total seven rounds flown over two days Contest Directors might take note format Scheduling four-minute task morning gives equal chance bad air early am should improve dramatic ally before round ends later fliers dont smoke Out scheduled earlier Classes year Unlimited Standard Scale could enter Two-Meter ship either first two categories challenge larger wingspans However plaque awarded site best per formance Two-Meter bird case youve wondering whether 2M League Silent Flights 1980 annual affair involved 14 sites throughout US Canada would easy 3500-plus members participate Two-Meter Sailplanes coming stronger ever U Dan Pruss 22 Model Aviation lot heavies Detroit contest Front row left Warren Plohr 1SF VP Gordon Pearson 1SF president Art Slagle Contest Director Warren Tiahrt 1SF secretary John Humphreys winner Two-Meter Back Row Eric Tiahrt Jr Senior winner Don Patter son Standard winner Dennis Steffinoski Walt Hill Standard 3rd Ken Bates 1SF Level V Bob Robinson Pat Flinn newest No 15 1SF level V Unlimited 3rd Ken Bates Michigan Merlynwon Unlimited Detroit 3493 points Ken another elite holders 1SF Level V Photos Jim Bemson Bob Curvy Dan Pruss ships have found niche competition world consider high number entries AMA Nationals fact inter national event will held second year California 1981 see November RC Soaring column LSF Regionals year 2M fliers made niche little larger Orlando FL 2M sailplane won Standard class did Ontario Canada Don Patterson did same thing Detroit contestthat won Standard class Two-Meter planebut wasnt good enough earn him Best Performance 2M plaque John Humphreys scored fourth Unlimited Two-Meter ship outpointing Patterson 3110 2984 2M honors above ponder organizers future contests might wish weigh Out merits scheduling Two-Meter event some other event next bash some other could size over two meters mentioned couple dozen columns back Two-Meter class needed some recog nition way ofthe contest circuit last three LSF Tournaments have added further proof class stay Scale usual thin splattering entries across 14 sites high five entries both Warminster PA Chicago Directors go bonkers left photo Ken Olsen St Louis shows at-rest Two-Meter ship slight load dropped tips pop place Voila Two-Meter ship becomes Standard class Contest Director runs rule book January 1981 23 U Neil Liptak inspects Jack Rakusans Scale en try Svensen-kit K8B Neil designed patches Top scorers Unlimited Warminster PA L-R Josh Glaab also highest scorerof 14 1977-80 LSF Tournament 79 US team regions Gordon Stratton 2nd Gerry Zeigenfuse 3rd Beautiful gold/silver/bronze plaques No respect LSF President Gordon Pearson Bob Robinson Lansing Ml Aquila accepts Scale plaquenot knowing Grande Unlimited 2nd Bob Hicks behindtrash sign attached back Southern California honors holding largest contest 67 entries second Detroit 58 Weather part Soaring typeyet event spread out over 3000 miles its impractical current scoring methods pick overall winner worthy note Josh Glaab high-point scorer Warminster entrant tallied 3586 out possible 3648 Second Jerry Bower Kanata Ontario 3576 Third place 1978 AMA Nationals winner Jim Fitch Tennessee 3575 points overall winner recognized future tournaments formula must devised covers weather conditions Glaabs 3576 points commendable score poor guys gals flying middle hurricane couldnt expected mount up points two days Yet top flier weather surely worthy being top dog Dave Pelts California suggests man-on-man competition group has run number contests over years worked out lot bugs Theyve worked out point regional tournament based man-to-man concept could held according Dave because bad weather five minutes best can 10-minute max contest surely fives good lOs booming lift recognition should made consistency Some organizers have shied away man-on-man concept because complexities scoring setting up matrix Through contests Peltz has also Continued page 99 24 Model Aviation spare wheel cover Olsen van transported Helen Ken Chicago non uupp prunnuau nu,ho Suds City Soar-Ins Milwaukee black-and-gold Aquila Grande Neat color/trim sets apart winners Chicago Bob Miller Urbana IL TWo-ULUr nuru Bob Steele Ft Wayne IN Legionaire Tom Tack Dwight IL parts everything Standard class winner 0D Miller ana nis tail-rirst canara iwo-Meter original assign uon isa Free Flighter suppose could have known plc 0111 MCiC5K5 05 New T0K iauncnes nis iwo-Meter snip wnicn flown Unlimited class Two-Meter size getting more popular tsene Uurnoski scratch-built Twin Astir Itwas finished atthe last minute flew very well BEGINNER TO PRO ES HOT STUFF JUST RIGHT FOR YOU HOT STUFF ORIGINAL CLEAR FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec THIS IS THE ONE THAT STARTED IT ALL 1/4 1/2 2 oz EXCLUSIVE VISIBLE FORMULA LOW VISCOSITY-DEEP PENETRATION INSTANT BOND RATE 3 10 sec HOT STUFF ELU LINEE t4E~ HOT STUFF GAP FILLING FILLETING POSITIONABLE HIGH VISCOSITY-TIMED BOND 10 25 sec 1/2 ozUse like regular glue wait 2 oz HOT STUFFGETS YOU OUT OF THE BUILDING ROOM AND INTO THE ACTION FAST HI-PERFORMANCE ADHESIVES FOR MODELERS AROUND THE WORLD O BOX 836 SIMI CA 93062 522-0062 model keeping original also has problem flying flies like full-scale aircraft Coordinated rudder must used turns otherwise turns appear stilted strange model weighed 9 lb netted wing loading 20 oz per sq ft first takeoff unexpected gave little power get ship rolling added little power get rudder take effect plane suddenly lifted off Later checked position throttle tached engine turning over about 7000 rpm 13-6 Top Flite prop K&B 61 will give maximum 10000 rpm prop flight handles best throttled back slightly about 8000 rpm thought reducing engine size 45 realized additional power bigger engine might help should plane get tight spot has Also putting smaller engine would reduce weight nose aircraft would require addition some lead weight keep correct center-of-gravity Otherwise ship easy fly floats over hot runway like old 40 hp Cub Under conditions necessary feed little down cause ship descend faster rate make wheel landing on-board ignition system asset because rpm too high plane will sink 2000rpm prop acts disk plate causing drag on-board ignition keeps fire going very low speeds Although plane lot work derived great satisfaction meeting challenges provided hope will much Enjoy Sources Classic Models PO Box 681 Melville NY 11746 Documentation Booklet Church Midwing $300 Plans 1-in Church Midwing $800 Experimental Aircraft Association Inc EAA Air Museum Foundation Inc Franklin WI 1931 Flying Glider Manual $200 Caltronic Laboratory 461 5 Cochran Ave PO Box 36356 Los Angeles CA 90036 Catalog Precision Model Engineering Instru ment Componentsfor stainless steel machine screws etc no charge Proctor Ent Corp PO Box 9641 San Diego 92109 Turnbuckles rigging control cable pulleys Send catalog $100 Hobbypoxy Products 32 Pine St Rockaway NJ 07866 Instructions balloon method fiberglassing no charge Coverite 420 Babylon Rd Horsham PA Information covering material send pre addressed stamped envelope LSF Regionals/Pruss Continued page 24 streamlined system experience can benefit us interested system Dave has offered provide rules organizers guide near future next year LSF officers havent yet decided whether 1981 will regional tournament international Because F3B World Championships have two-year program league front office trying set LSF schedule would dovetail F3B Team Selection Program LSF funded tournaments Except contributions made members send level forms league depends contest financial support current officers wish thank members past contributions Any input LSF can made contact ing following Gordon Pearson President 8232 Earhart Road South Lyon MI 48178 Warren Plohr Vice President 5395 Sunset Oval North Olmstead OH 44070 Warren Tiahrt Secretary 7647 Twilight Court Clarkston MI 48016 Keith Finkenbiner Treasurer 907 Barley Drive Wilmington DE 19807 Applicants membership can write directly League Silent Flight PO Box 39068 Chicago IL 60639 Include self-addressed envelope Good Lift RC Scale/Wischers Continued page 27 some additional weight nose balance Usually means batteries must located udner fuel tank long extension cord required have run long extension cords through models some profusion batteries remote servos no ill effects Another trick help balance tail-heavy condi tion use extra large fuel tank nose space permits plane will carrying much fuel needed contests model weighed fuel using fuel ballast can help keep within weight limits risk method temptation use fuel long flight subsequent tall-heavy landing An alternate system would employ two tanks greater effect rear tank feeding ballast tank located near engine Always land ballast tank full Continued page 106 Januafy 1981 99