IT WAS ORIGINALLY intended christen little Easy-B canard Bass ackwards deference tender young eyes may reading text settled Bumbled-Bee either case entire project has bumbled bassackwards comedy contradictions ought expect collabo ration RC columnist CL Con test Board member result unusual Indoor model author past CLCB chairman present CLCB member developed de sign concept initiated George Myers writer monthly Radio Tech nique column Model Aviation original fun-fly model evolved com petitive airplane now experi menting larger version Bum bled-Bee Indoor Paper Stick event page 15 December 1976 issue MAN has photos Barry Pailet canard flew Paper Stick event 1976 Nationals original goal reduce hang-ups obstructions moving prop aft resulting reduction forward span has enabled model penetrate smaller crevices would otherwise possible However flight experience date has indicated hang ups really fewer occur seldom require anything patience ultimate retrieval seems because aft CG compared conventional designs combined decreasing forward thrust rubber motor winds down remember hang-ups prop will remain free turn tends induce model back-ofi free itself Stall recovery bumps hang-ups also seems improve ment over conventional tractor designs Contest performance date has encouraging original Bumbled-Bee shown accompanying photos weighs slightly over 3 grams has com peted effectively both Easy-B Pen ny-Plane events Northeast has consistently turned flights eight nine minutes under 50- 65-ft ceilings Therefore built lighter truly competi tive Easy-B weights adopted PennyPlane surface areas design seems have much yet-to-be-realized performance potential Incidentally motor length shown plans 10 prop bearFebruary 1978 57 South view north flying airplane Original idea reduce hang-ups yours putting prop rear found reducing span forward surface enabled model penetrate smaller crevices otherwise possible Backs off readily forward fin just tissue between two struts provides built-in control desired flight circle rear support forward surface glued right side motorstick front support center line Stall recovery bumps hang-ups seems superior ing rubber hook conforms PennyPlane rules plan fly Bum bled-Bee Easy-B would prob ably advantageous increase motor length inch two Doing will give added motor-winding capacity well helping keep CG forward want Which brings us few brief words CG location before getting con struction comments have add bit ballast note small lump clay shown nose prototype Bumbled-Bee accompanying close up pictures keep CG forward location shown plans Build ing forward canard surface stronger heavier might otherwise seem normal serves dual purpose getting both weight strength nose needed proper balance absorb bumping abuse aid proper CG location motorstick dimensions shown drawing have slightly modified original model shown pictures changes incorporated enlarged Paper Stick model proved quite effec tive positioning CG proper location Construction Construction Bumbled-Bee simple conventional basic mate rials wood fittings condenser-paper cov ering obtained Micro-X Prod ucts PO Box 1063 Lorain Ohio 44055 especially important use double support prop bearing mount small wedge between motorstick assure proper down-thrust see plans double-support bearing also provides means adjusting side-thrust help attain desired flight circle wing canard ribs cut 030 C-grain stock leading trailing edge spars both surfaces cut tapered shown 040 B-grain stock Surface support posts roundsanded 1/20 sq strips posts fit tissue paper sockets made dope saturated /s X ue strips formed rolling around greased 3/64-in dia wire Basic wing canard incidence settings can obtained making forward canard post 1 long its rear post 11/4 long forward wing post should 2 long rear wing post 17A long Thorough flight testing way determine what additional incidence trim adjustment required particular model particular site Prop blades cut 020 B-grain sheet formed soaking hot water being taped surface 3-in diameter cylinder standard Mason jar fine 30-degree angle base either air-dried baked dry warm oven center prop post hub 1/16 sq balsa strip rein forced small doubler center prop shaft fuselage hook 012 wire Covering material condenser paper Having always problems working conventional condenser paper cement normally shellac weve using thinned about 1 part water 1 part glue mixture white Elmers glue num Continued page 97 58 Model Aviation What see what get note small lump clay ballast front end motorstick general idea keep CG position forward position given plans Incidence adjustments canard surfaceand wingare pro vided conventional tissue sockets made dope-saturated strips wound around 3/64 wire Struts moved up down minutely making adjustments Model has done well Pennyplane well larger version quite competitive Paper Stick event Propeller blades made 020 B-grain sheet soaked hot water taped surface 3-in dia cylinderMasonry jar fine NEWf MUFF-L-IT SERIES Available B C engines E REGULAR IT REAR EX Six eight Ob reduction noise engines Proportional volumne expan sion chamber Large exhaust nozzle low back pressure Little no loss power No 33109IN$749 No 3022940tO35 No 3034550$549 *nubu B m 0 oh4a No304RX09it$1095 No305552944$1195 90306534550tt3n5 1/2A MUFFLER Fits COX 049 engines No 3000049$549 No 3005051$549 Sympo 78 can whip out article covering some aspect Free Flight within next month two please send abstract proposed paper Bob Dodds Box 436 Rancho Stanta Fe CA 92067 Bob Meuser 4200 Gregory St Oak land CA 94619 Bumbled Bee/Pallet continued page 58 ber years great success also pre-shrink condenser paper damp ening allowing air-dry before applying structure reduces later warping surfaces due vary ing humidity Power requirements will course vary site site depending upon ceiling height However will likely working 035 065 rubber loop lengths between 10 14 depending upon weight particular model again characteristics site Adjustments desired flight circle fly conventionally left 35- 50-ft circles partially built-in vir tue fin formed condenser paper covering between two sup port posts forward canard surface being off-set left turn because socket rear post glued right side motorstick front socket center-line Additional turn trim can accomplished using either side-thrust differential incidence twist left right canard halves some combination two Optimum flight performance requires much trial-and-error testing varying combinations power rubber cross-sec tion length number winds wing canard trim settings Two partic ular tips dont afraid experiment CG location adding very small amount ballast clay fore aft sure wind rubber-motor left otherwise youre going very embar rassed Bumbled-Bee tries fly back towards instead forward away However get going right direction pa tience methodical approach trim adjustments think youll find little Easy-B canard fun fly fully competi tive conventional designs very least its eye-catcher conversation-starter Engine Technique/Jehlik continued page 51 Too lean enough fuel engine starts gains rpm rapidly slows down dies usually 3-5 seconds prepared adjust needle valve soon after engine starts Ive provided plenty props chances chew fin gers finally learned its best think about what may have before start ing engine Safety precautions aware fuels flammable smoke around fuels careful cause sparks battery leads stand beside en gine running Prop blades thrown off high velocity like arrows wear glasses preferably safety lenses avoid splashed fuel eyes protect moving objects use ear protection model engines definitely loud enough cause permanent partial hearing losses enough exposure Think ahead plan what will develop ritual about use wood fiberglass props tests f Now new engine running smooth rich real business bench running begins What should what should know 1 First running feel engine carefully Touch crankshaft housing should feel cold times warm hot stop engine shaft will too tight housing bearings improp erly mounted etc means take en gine apart examine surfaces shaft housing bore signs rubbing galling back duPont white rubbing compound #400 wet dry pa per remove signs damage 2 Feel bottom crankcase front back Heat front means problem rear ball bearings rear rotary valve induction engine has Crankshafts pressed too tight bearings loaded bearing inner race pulled off-center will cause heat lose power fail premature ly sure shaft slides bearing easy finger push fit Heat rotary valve means valve too close backplate warped pushed crankshaft drive pin backplate process elimination can identify problem correct 3 Feel upper part crankcase hot spots case should remain cool bypass transfers located feel evenly hot around fins con trast head should feel really hot want pull hand away involun tarily 70% heat absorbed engine itself typically expressed through head upper part case apparently hot head stop en gine disassemble hold sleeve wiped dry up light carefully look bright shine gall marks means too tight portion sleeve 4 Condition piston/sleeve Lapped Steel sleeve shiny full distance above exhaust port piston/sleeve fit too tight two remedies run b lap recom mend running tight piston because places too much strain reciprocating parts takes too long arrive cor rect fit unless use Lustrox obtained Duke Fox used directed prefer lap again duPont white compound piston begins show small verti cal scratch marks look through exhaust port run until lapped out have found little marks really cut power life engine allow develop have lapped new engine seven times order February 1978 97 jtu~I MANY OTHER ACCESSORIES SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS SEND FOR OUR THUNDER ROAD CATALOG
Edition: Model Aviation - 1978/02
Page Numbers: 57, 58, 97
IT WAS ORIGINALLY intended christen little Easy-B canard Bass ackwards deference tender young eyes may reading text settled Bumbled-Bee either case entire project has bumbled bassackwards comedy contradictions ought expect collabo ration RC columnist CL Con test Board member result unusual Indoor model author past CLCB chairman present CLCB member developed de sign concept initiated George Myers writer monthly Radio Tech nique column Model Aviation original fun-fly model evolved com petitive airplane now experi menting larger version Bum bled-Bee Indoor Paper Stick event page 15 December 1976 issue MAN has photos Barry Pailet canard flew Paper Stick event 1976 Nationals original goal reduce hang-ups obstructions moving prop aft resulting reduction forward span has enabled model penetrate smaller crevices would otherwise possible However flight experience date has indicated hang ups really fewer occur seldom require anything patience ultimate retrieval seems because aft CG compared conventional designs combined decreasing forward thrust rubber motor winds down remember hang-ups prop will remain free turn tends induce model back-ofi free itself Stall recovery bumps hang-ups also seems improve ment over conventional tractor designs Contest performance date has encouraging original Bumbled-Bee shown accompanying photos weighs slightly over 3 grams has com peted effectively both Easy-B Pen ny-Plane events Northeast has consistently turned flights eight nine minutes under 50- 65-ft ceilings Therefore built lighter truly competi tive Easy-B weights adopted PennyPlane surface areas design seems have much yet-to-be-realized performance potential Incidentally motor length shown plans 10 prop bearFebruary 1978 57 South view north flying airplane Original idea reduce hang-ups yours putting prop rear found reducing span forward surface enabled model penetrate smaller crevices otherwise possible Backs off readily forward fin just tissue between two struts provides built-in control desired flight circle rear support forward surface glued right side motorstick front support center line Stall recovery bumps hang-ups seems superior ing rubber hook conforms PennyPlane rules plan fly Bum bled-Bee Easy-B would prob ably advantageous increase motor length inch two Doing will give added motor-winding capacity well helping keep CG forward want Which brings us few brief words CG location before getting con struction comments have add bit ballast note small lump clay shown nose prototype Bumbled-Bee accompanying close up pictures keep CG forward location shown plans Build ing forward canard surface stronger heavier might otherwise seem normal serves dual purpose getting both weight strength nose needed proper balance absorb bumping abuse aid proper CG location motorstick dimensions shown drawing have slightly modified original model shown pictures changes incorporated enlarged Paper Stick model proved quite effec tive positioning CG proper location Construction Construction Bumbled-Bee simple conventional basic mate rials wood fittings condenser-paper cov ering obtained Micro-X Prod ucts PO Box 1063 Lorain Ohio 44055 especially important use double support prop bearing mount small wedge between motorstick assure proper down-thrust see plans double-support bearing also provides means adjusting side-thrust help attain desired flight circle wing canard ribs cut 030 C-grain stock leading trailing edge spars both surfaces cut tapered shown 040 B-grain stock Surface support posts roundsanded 1/20 sq strips posts fit tissue paper sockets made dope saturated /s X ue strips formed rolling around greased 3/64-in dia wire Basic wing canard incidence settings can obtained making forward canard post 1 long its rear post 11/4 long forward wing post should 2 long rear wing post 17A long Thorough flight testing way determine what additional incidence trim adjustment required particular model particular site Prop blades cut 020 B-grain sheet formed soaking hot water being taped surface 3-in diameter cylinder standard Mason jar fine 30-degree angle base either air-dried baked dry warm oven center prop post hub 1/16 sq balsa strip rein forced small doubler center prop shaft fuselage hook 012 wire Covering material condenser paper Having always problems working conventional condenser paper cement normally shellac weve using thinned about 1 part water 1 part glue mixture white Elmers glue num Continued page 97 58 Model Aviation What see what get note small lump clay ballast front end motorstick general idea keep CG position forward position given plans Incidence adjustments canard surfaceand wingare pro vided conventional tissue sockets made dope-saturated strips wound around 3/64 wire Struts moved up down minutely making adjustments Model has done well Pennyplane well larger version quite competitive Paper Stick event Propeller blades made 020 B-grain sheet soaked hot water taped surface 3-in dia cylinderMasonry jar fine NEWf MUFF-L-IT SERIES Available B C engines E REGULAR IT REAR EX Six eight Ob reduction noise engines Proportional volumne expan sion chamber Large exhaust nozzle low back pressure Little no loss power No 33109IN$749 No 3022940tO35 No 3034550$549 *nubu B m 0 oh4a No304RX09it$1095 No305552944$1195 90306534550tt3n5 1/2A MUFFLER Fits COX 049 engines No 3000049$549 No 3005051$549 Sympo 78 can whip out article covering some aspect Free Flight within next month two please send abstract proposed paper Bob Dodds Box 436 Rancho Stanta Fe CA 92067 Bob Meuser 4200 Gregory St Oak land CA 94619 Bumbled Bee/Pallet continued page 58 ber years great success also pre-shrink condenser paper damp ening allowing air-dry before applying structure reduces later warping surfaces due vary ing humidity Power requirements will course vary site site depending upon ceiling height However will likely working 035 065 rubber loop lengths between 10 14 depending upon weight particular model again characteristics site Adjustments desired flight circle fly conventionally left 35- 50-ft circles partially built-in vir tue fin formed condenser paper covering between two sup port posts forward canard surface being off-set left turn because socket rear post glued right side motorstick front socket center-line Additional turn trim can accomplished using either side-thrust differential incidence twist left right canard halves some combination two Optimum flight performance requires much trial-and-error testing varying combinations power rubber cross-sec tion length number winds wing canard trim settings Two partic ular tips dont afraid experiment CG location adding very small amount ballast clay fore aft sure wind rubber-motor left otherwise youre going very embar rassed Bumbled-Bee tries fly back towards instead forward away However get going right direction pa tience methodical approach trim adjustments think youll find little Easy-B canard fun fly fully competi tive conventional designs very least its eye-catcher conversation-starter Engine Technique/Jehlik continued page 51 Too lean enough fuel engine starts gains rpm rapidly slows down dies usually 3-5 seconds prepared adjust needle valve soon after engine starts Ive provided plenty props chances chew fin gers finally learned its best think about what may have before start ing engine Safety precautions aware fuels flammable smoke around fuels careful cause sparks battery leads stand beside en gine running Prop blades thrown off high velocity like arrows wear glasses preferably safety lenses avoid splashed fuel eyes protect moving objects use ear protection model engines definitely loud enough cause permanent partial hearing losses enough exposure Think ahead plan what will develop ritual about use wood fiberglass props tests f Now new engine running smooth rich real business bench running begins What should what should know 1 First running feel engine carefully Touch crankshaft housing should feel cold times warm hot stop engine shaft will too tight housing bearings improp erly mounted etc means take en gine apart examine surfaces shaft housing bore signs rubbing galling back duPont white rubbing compound #400 wet dry pa per remove signs damage 2 Feel bottom crankcase front back Heat front means problem rear ball bearings rear rotary valve induction engine has Crankshafts pressed too tight bearings loaded bearing inner race pulled off-center will cause heat lose power fail premature ly sure shaft slides bearing easy finger push fit Heat rotary valve means valve too close backplate warped pushed crankshaft drive pin backplate process elimination can identify problem correct 3 Feel upper part crankcase hot spots case should remain cool bypass transfers located feel evenly hot around fins con trast head should feel really hot want pull hand away involun tarily 70% heat absorbed engine itself typically expressed through head upper part case apparently hot head stop en gine disassemble hold sleeve wiped dry up light carefully look bright shine gall marks means too tight portion sleeve 4 Condition piston/sleeve Lapped Steel sleeve shiny full distance above exhaust port piston/sleeve fit too tight two remedies run b lap recom mend running tight piston because places too much strain reciprocating parts takes too long arrive cor rect fit unless use Lustrox obtained Duke Fox used directed prefer lap again duPont white compound piston begins show small verti cal scratch marks look through exhaust port run until lapped out have found little marks really cut power life engine allow develop have lapped new engine seven times order February 1978 97 jtu~I MANY OTHER ACCESSORIES SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS SEND FOR OUR THUNDER ROAD CATALOG
Edition: Model Aviation - 1978/02
Page Numbers: 57, 58, 97
IT WAS ORIGINALLY intended christen little Easy-B canard Bass ackwards deference tender young eyes may reading text settled Bumbled-Bee either case entire project has bumbled bassackwards comedy contradictions ought expect collabo ration RC columnist CL Con test Board member result unusual Indoor model author past CLCB chairman present CLCB member developed de sign concept initiated George Myers writer monthly Radio Tech nique column Model Aviation original fun-fly model evolved com petitive airplane now experi menting larger version Bum bled-Bee Indoor Paper Stick event page 15 December 1976 issue MAN has photos Barry Pailet canard flew Paper Stick event 1976 Nationals original goal reduce hang-ups obstructions moving prop aft resulting reduction forward span has enabled model penetrate smaller crevices would otherwise possible However flight experience date has indicated hang ups really fewer occur seldom require anything patience ultimate retrieval seems because aft CG compared conventional designs combined decreasing forward thrust rubber motor winds down remember hang-ups prop will remain free turn tends induce model back-ofi free itself Stall recovery bumps hang-ups also seems improve ment over conventional tractor designs Contest performance date has encouraging original Bumbled-Bee shown accompanying photos weighs slightly over 3 grams has com peted effectively both Easy-B Pen ny-Plane events Northeast has consistently turned flights eight nine minutes under 50- 65-ft ceilings Therefore built lighter truly competi tive Easy-B weights adopted PennyPlane surface areas design seems have much yet-to-be-realized performance potential Incidentally motor length shown plans 10 prop bearFebruary 1978 57 South view north flying airplane Original idea reduce hang-ups yours putting prop rear found reducing span forward surface enabled model penetrate smaller crevices otherwise possible Backs off readily forward fin just tissue between two struts provides built-in control desired flight circle rear support forward surface glued right side motorstick front support center line Stall recovery bumps hang-ups seems superior ing rubber hook conforms PennyPlane rules plan fly Bum bled-Bee Easy-B would prob ably advantageous increase motor length inch two Doing will give added motor-winding capacity well helping keep CG forward want Which brings us few brief words CG location before getting con struction comments have add bit ballast note small lump clay shown nose prototype Bumbled-Bee accompanying close up pictures keep CG forward location shown plans Build ing forward canard surface stronger heavier might otherwise seem normal serves dual purpose getting both weight strength nose needed proper balance absorb bumping abuse aid proper CG location motorstick dimensions shown drawing have slightly modified original model shown pictures changes incorporated enlarged Paper Stick model proved quite effec tive positioning CG proper location Construction Construction Bumbled-Bee simple conventional basic mate rials wood fittings condenser-paper cov ering obtained Micro-X Prod ucts PO Box 1063 Lorain Ohio 44055 especially important use double support prop bearing mount small wedge between motorstick assure proper down-thrust see plans double-support bearing also provides means adjusting side-thrust help attain desired flight circle wing canard ribs cut 030 C-grain stock leading trailing edge spars both surfaces cut tapered shown 040 B-grain stock Surface support posts roundsanded 1/20 sq strips posts fit tissue paper sockets made dope saturated /s X ue strips formed rolling around greased 3/64-in dia wire Basic wing canard incidence settings can obtained making forward canard post 1 long its rear post 11/4 long forward wing post should 2 long rear wing post 17A long Thorough flight testing way determine what additional incidence trim adjustment required particular model particular site Prop blades cut 020 B-grain sheet formed soaking hot water being taped surface 3-in diameter cylinder standard Mason jar fine 30-degree angle base either air-dried baked dry warm oven center prop post hub 1/16 sq balsa strip rein forced small doubler center prop shaft fuselage hook 012 wire Covering material condenser paper Having always problems working conventional condenser paper cement normally shellac weve using thinned about 1 part water 1 part glue mixture white Elmers glue num Continued page 97 58 Model Aviation What see what get note small lump clay ballast front end motorstick general idea keep CG position forward position given plans Incidence adjustments canard surfaceand wingare pro vided conventional tissue sockets made dope-saturated strips wound around 3/64 wire Struts moved up down minutely making adjustments Model has done well Pennyplane well larger version quite competitive Paper Stick event Propeller blades made 020 B-grain sheet soaked hot water taped surface 3-in dia cylinderMasonry jar fine NEWf MUFF-L-IT SERIES Available B C engines E REGULAR IT REAR EX Six eight Ob reduction noise engines Proportional volumne expan sion chamber Large exhaust nozzle low back pressure Little no loss power No 33109IN$749 No 3022940tO35 No 3034550$549 *nubu B m 0 oh4a No304RX09it$1095 No305552944$1195 90306534550tt3n5 1/2A MUFFLER Fits COX 049 engines No 3000049$549 No 3005051$549 Sympo 78 can whip out article covering some aspect Free Flight within next month two please send abstract proposed paper Bob Dodds Box 436 Rancho Stanta Fe CA 92067 Bob Meuser 4200 Gregory St Oak land CA 94619 Bumbled Bee/Pallet continued page 58 ber years great success also pre-shrink condenser paper damp ening allowing air-dry before applying structure reduces later warping surfaces due vary ing humidity Power requirements will course vary site site depending upon ceiling height However will likely working 035 065 rubber loop lengths between 10 14 depending upon weight particular model again characteristics site Adjustments desired flight circle fly conventionally left 35- 50-ft circles partially built-in vir tue fin formed condenser paper covering between two sup port posts forward canard surface being off-set left turn because socket rear post glued right side motorstick front socket center-line Additional turn trim can accomplished using either side-thrust differential incidence twist left right canard halves some combination two Optimum flight performance requires much trial-and-error testing varying combinations power rubber cross-sec tion length number winds wing canard trim settings Two partic ular tips dont afraid experiment CG location adding very small amount ballast clay fore aft sure wind rubber-motor left otherwise youre going very embar rassed Bumbled-Bee tries fly back towards instead forward away However get going right direction pa tience methodical approach trim adjustments think youll find little Easy-B canard fun fly fully competi tive conventional designs very least its eye-catcher conversation-starter Engine Technique/Jehlik continued page 51 Too lean enough fuel engine starts gains rpm rapidly slows down dies usually 3-5 seconds prepared adjust needle valve soon after engine starts Ive provided plenty props chances chew fin gers finally learned its best think about what may have before start ing engine Safety precautions aware fuels flammable smoke around fuels careful cause sparks battery leads stand beside en gine running Prop blades thrown off high velocity like arrows wear glasses preferably safety lenses avoid splashed fuel eyes protect moving objects use ear protection model engines definitely loud enough cause permanent partial hearing losses enough exposure Think ahead plan what will develop ritual about use wood fiberglass props tests f Now new engine running smooth rich real business bench running begins What should what should know 1 First running feel engine carefully Touch crankshaft housing should feel cold times warm hot stop engine shaft will too tight housing bearings improp erly mounted etc means take en gine apart examine surfaces shaft housing bore signs rubbing galling back duPont white rubbing compound #400 wet dry pa per remove signs damage 2 Feel bottom crankcase front back Heat front means problem rear ball bearings rear rotary valve induction engine has Crankshafts pressed too tight bearings loaded bearing inner race pulled off-center will cause heat lose power fail premature ly sure shaft slides bearing easy finger push fit Heat rotary valve means valve too close backplate warped pushed crankshaft drive pin backplate process elimination can identify problem correct 3 Feel upper part crankcase hot spots case should remain cool bypass transfers located feel evenly hot around fins con trast head should feel really hot want pull hand away involun tarily 70% heat absorbed engine itself typically expressed through head upper part case apparently hot head stop en gine disassemble hold sleeve wiped dry up light carefully look bright shine gall marks means too tight portion sleeve 4 Condition piston/sleeve Lapped Steel sleeve shiny full distance above exhaust port piston/sleeve fit too tight two remedies run b lap recom mend running tight piston because places too much strain reciprocating parts takes too long arrive cor rect fit unless use Lustrox obtained Duke Fox used directed prefer lap again duPont white compound piston begins show small verti cal scratch marks look through exhaust port run until lapped out have found little marks really cut power life engine allow develop have lapped new engine seven times order February 1978 97 jtu~I MANY OTHER ACCESSORIES SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS SEND FOR OUR THUNDER ROAD CATALOG