Di iron text ci s ier J es fling wn ships Theau o see N mo NO OCR TEXT Rati thei Pdoti w si half itboard tip wing jig iminated v Ce spars e true wi le block s warped Other str lf explanatc fuselage ont technique co nearly goof add consi ace spar lem n epoxy iti such used 1/16 crut F rus e quick-si Stuff 2 alsa use yet ed wrn ig being stituted ints arc ANNOUNCING Fast Steep Climb FLat Slow Glide 4 new P 30 class model designed novice mind has potential win toughest THE POTENT30 Deluxe kit teatures include Rolled balsa tusela o e wing mount dt Completed prop ancf nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality tissue abed contest rubber Detailed instructions flying tips help win CAT NO R2 $6g5 PP check mosey order CHAS WERLE 3620 MORSE AVE N08 SACTO CALIF g5821 P 0 Box 2490-MA LA MESA AUF 92041 GET ORGANIZED Hates set vi 4 stuidy tiles haMs aver 4 yeats vi yavi tavarite 9ii wagautnes 4 MAG FILES $495 Send $490 pius 5100 lv pasiage handling iv DON INDUSTRIES PO BOX 388-k DOVER NH 03820 CL Aerobatics/Paul continued page 41 FAI tryouts knows what needed good Contestbut needs some help Any other site representatives wish Considered FAI stunt tryouts should Contact PAMPA president Keith Trostle 10900 Phillips Drive Upper Marlboro MD 20870 Maybe FAI speed people should drop stunt try outs learn make official flight Aero-Challenge Post Mortem Bill Allen DeKaIb Illinois knocks himself out year set up two-day extrava ganza lots control-line events great awards past contest 137 contestants generated $129775 Jerry Lewis Labor Day Telethon Stunt instance 33 entrants four classes included some top National qualifiers Unfortunately everyone shares enthusiasm toy airplanes asso ciated activities Bill sadly received dis couraging letter Wurlitzer Company site 1978 Contest Ac cording facilities manager concerned over protecting investment landscaping underground sprinkler system also felt children present under proper control Some fool actually playing fountain Therefore regret Wurlitzer cannot offer facilities future model meets signed R G Myrland Fa cilities Manager narrow-minded such wholesome activity people involved plus spectators added donation raised Telethon Wurlitzers margn profit slim cant support civic activities such Lets hope Bill Allen can find another site Aero-Challenge Swept-forward trailing edge idea has used Bill Werwage several planes recently also has tried Al Rabe Bob Gialdini Don Shultz Bob Hunt said recently too go ing cut foam wing try idea next year claim method wtth swept-forward trailing edge plane will yaw According ex perts air spilling off conventional T F flap deflected helps create yaw Hunt cites example grasping 12-inch ruler middle drawing through pan water ruler will yaw back forth However piece wood cut glued Center represent swept forward trailing edge does ex hibit same tendencies obvious sweptforward trailing edge deflected flap does meet air flow flat across entire surface rather air chan nelled spilled off ends Werwage trailing edge sweep some 225 inches Bob trying two configurations 15 2 inches Forties coming strong switch 40-size engine becoming roar rather trickle HP-40 Max 40 FSR getting majority stunters Talking Bill Werwage recently said has experimenting HP both Max 40 45 well ST 46 during 1978 new plane will built accommodate four en gines accomplished Well Bills resident machinist has carved out some odd-sized front covers crank shaft extensions end up same place spinner Recently Bill really tried novelty put front half case crankshaft HP 40 onto Max 40 FSR result very nice 8 oz engine however didnt run too well Bill attributes loss per formance tp smaller porting HP crankshaft feels almost double port Max crank gets fuel/air mtxture chamber turn gives power Bill stated really likes guts Max 45 has just too rough suit him stunt likes combustion chamber design 45 still engine has rough spots dont please him have running HP 40 success seem have adjust timing sleeve seems about 015 drop liner will make HP run better stunt Popular venturis HP 290 296 range writer has some limited expe riencewith Max 40 FSR does ap pear very good engine Tank height problem Werwage suggests tank Vt off beams better run experienced wind-up consecutive maneuvers have yet able try adjusting tank height thing certain Max can flown right out box looks like good engine certainly can about same average better average 5T46 reworking can use 015-size lines advantage information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Zilch/Mathews continued page 45 used effectively rib backed up scrap X 2 pine prevent breaking rib Check absolute free movement leadouts pushrod cut trim until satisfied Epoxy V8tt brass tubes side tip lead weights outside tip After epoxy cures remove wing jig Plank center section install cap strips using CA wherever possible Complete wing adding needed wing-tip con tour fillers sanding point ready-for-covering cover until wing installed fuselage Tail Feathers Cut 3/l6ir balsa correct length epoxy spruce spars stab elevator Trace outlines onto blanks using carbon paper under plans cut Sand airfoil section add offset rudder Leave center leading edge stab flat joint fuselage keel Fuselage Trace bulkhead patterns onto plywood using carbon paper under plans Note difference motor bearer notches varying powerplants Use carbon paper technique develop two identical fuselage sides 1/ott sheet choose closely matched pieces wood Develop 1/16 ply doublers using balsa sides pattern Join balsa sides contact cement 5-minute epoxy Mark mid-line position bulkheads onto straight grained flat piece 3/16 balsa Attach bulkheads 2 & 3 top using 5-minute epoxy Check parallelism 90-degree triangle Epoxy stab rear top checking mid lines parallel Epoxy maple motor bearers fuse lage bulkheads Hold alignment 102 Model Aviation yo Model IKIT $395Complete 79 Catalog $100 16 WINGSPAN OUiDE OF RUBBER MODEL SUPPLItS GEE BEE R-1 DECALS 2 1 scale S LETTERING EXCEPT THOSE OF-Ilk THE WINGS GRANGERPOST WILLIAMSPAID 181 PAWNEE ST SAN MARCOS Ca 92069 C-clamps masking tape pins Allow epoxy cure pull tailpost together directly over mid-line mark CA fuselage sides top crutch Slide wing cut-out remov ing fuselage work surface Sand trim sides clearance needed pushrod stub will slide through some bending /8th sides Measure equal height wing above work surface equal distance leading edge stab Use Hobbypoxy Thixotropic epoxy attach wing accessible areas cut bulkhead 3 Temporarily tape elevator stabilizer control horn CA place Cut slot fuselage side clear heavy duty pushrod bending necessary clearance Project wing pushrod stub full up posi tion join rear pushrod 3/32 ID brass tube soldered joint Mount previously bent landing gear wire bulkhead nylon landing gear brackets Epoxy assembly onto bulkhead 2 maple bearers Plank bottom up bulkhead using CA Sheeting cross grained Remove assembly work surface Cut sand top bottom contour Position engine bearers mark drill 9/64-in holes 4 X 40 T-nuts Cut trim nose blocks clear engine attach 5-minute epoxy Cut hatch inside bulkheads sides Pencil-mark rear limit hatch onto sides reference glue a block position hatch place glue sides front perimeter around 3/16 hatch just removable por tion glue dry cut through t using marks guide razor saw Remove hatch install holddown hardware Cut bulkhead 4 turtle deck sides firm /8 sheet CA 4 crutch bevel joint sides neat fit crutch CA place Cut turtle deck clear fin Hinge elevator stab using method used classic cloth hinges Sig glue Permanently attach horn clevis adjusting neutral trimming cut-out side free movement Trim turtle deck neat fit fin epoxy fin stab slot Check right angle 900 triangle Fill voids wing-fuselage joint Thixotropic epoxy forming fillet moistened finger Sand wing fuselage members Finishing wishing authenticity should cover Silkspan Testors Hep durability beauty impor tant contemporary finishes recom mended covered wings trans parent MonoKote masking off out lines electricians tape news paper applying two coats K&B filler sanding between coats filler fine sanded #380 paper whole works sprayed two coats Perfect White Poly-urethane paint Coat tank engine areas resin epoxy fuelproofing pinstripes prototype D&J Multi-stripe numbers letters vinyl stick items office supply building model airplanes 30 years ago spinner genuine Froom definitive name spinners tanks back long since out business powerplant Atwood Triumph 49 last large bore engine bear design genius Bill wood have flown Super Duper Zilch Fox 35 Although lacking brute strength Triumph Fox adequate pull aircraft through stunt pattern Maneuvers models era somewhat different being open abrupt execution verted flight requires definite up down really elevator horizontal 8s use up lot air space Flight charac teristics delightful no vicious habits Grooving excellent did wheelrolls elder son taking photos never seen such thing Wheel-rolls part event early days hope choose con struct new improved Super Duper receive much genuine pleasure yours have Engines/Lee continued page 49 valve Schnuerle ported ringed designs Several times have mentioned bar stock engines term used literally hog new crankcase out solid chunk bar aluminum new prototype engine awful lot work make patterns core box get crankcase casting much simpler cheaper use bar stock make one-of-a-kind crankcases unu sual find large production RC engines made way line utilizes solid aluminum instead castings crankcases Profi engines imported Nelson Products manufactured West Ger come five sizes 10 176 cc 76 1265 cc Almost part engine except bearings car buretor carburetor housing machined solid metal stock wrought heat treated aluminum much stronger stable cast mater ial crankcase machined out solid aluminum aluminum cylinder jacket integral Schnuerle bypass ports screws top hardened steel liner held place conventional bar-stock squish-band head single-ringed ma chined piston utilized carburetor different since uses sliding February 1979 103
Edition: Model Aviation - 1979/02
Page Numbers: 42, 43, 44, 102, 103
Di iron text ci s ier J es fling wn ships Theau o see N mo NO OCR TEXT Rati thei Pdoti w si half itboard tip wing jig iminated v Ce spars e true wi le block s warped Other str lf explanatc fuselage ont technique co nearly goof add consi ace spar lem n epoxy iti such used 1/16 crut F rus e quick-si Stuff 2 alsa use yet ed wrn ig being stituted ints arc ANNOUNCING Fast Steep Climb FLat Slow Glide 4 new P 30 class model designed novice mind has potential win toughest THE POTENT30 Deluxe kit teatures include Rolled balsa tusela o e wing mount dt Completed prop ancf nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality tissue abed contest rubber Detailed instructions flying tips help win CAT NO R2 $6g5 PP check mosey order CHAS WERLE 3620 MORSE AVE N08 SACTO CALIF g5821 P 0 Box 2490-MA LA MESA AUF 92041 GET ORGANIZED Hates set vi 4 stuidy tiles haMs aver 4 yeats vi yavi tavarite 9ii wagautnes 4 MAG FILES $495 Send $490 pius 5100 lv pasiage handling iv DON INDUSTRIES PO BOX 388-k DOVER NH 03820 CL Aerobatics/Paul continued page 41 FAI tryouts knows what needed good Contestbut needs some help Any other site representatives wish Considered FAI stunt tryouts should Contact PAMPA president Keith Trostle 10900 Phillips Drive Upper Marlboro MD 20870 Maybe FAI speed people should drop stunt try outs learn make official flight Aero-Challenge Post Mortem Bill Allen DeKaIb Illinois knocks himself out year set up two-day extrava ganza lots control-line events great awards past contest 137 contestants generated $129775 Jerry Lewis Labor Day Telethon Stunt instance 33 entrants four classes included some top National qualifiers Unfortunately everyone shares enthusiasm toy airplanes asso ciated activities Bill sadly received dis couraging letter Wurlitzer Company site 1978 Contest Ac cording facilities manager concerned over protecting investment landscaping underground sprinkler system also felt children present under proper control Some fool actually playing fountain Therefore regret Wurlitzer cannot offer facilities future model meets signed R G Myrland Fa cilities Manager narrow-minded such wholesome activity people involved plus spectators added donation raised Telethon Wurlitzers margn profit slim cant support civic activities such Lets hope Bill Allen can find another site Aero-Challenge Swept-forward trailing edge idea has used Bill Werwage several planes recently also has tried Al Rabe Bob Gialdini Don Shultz Bob Hunt said recently too go ing cut foam wing try idea next year claim method wtth swept-forward trailing edge plane will yaw According ex perts air spilling off conventional T F flap deflected helps create yaw Hunt cites example grasping 12-inch ruler middle drawing through pan water ruler will yaw back forth However piece wood cut glued Center represent swept forward trailing edge does ex hibit same tendencies obvious sweptforward trailing edge deflected flap does meet air flow flat across entire surface rather air chan nelled spilled off ends Werwage trailing edge sweep some 225 inches Bob trying two configurations 15 2 inches Forties coming strong switch 40-size engine becoming roar rather trickle HP-40 Max 40 FSR getting majority stunters Talking Bill Werwage recently said has experimenting HP both Max 40 45 well ST 46 during 1978 new plane will built accommodate four en gines accomplished Well Bills resident machinist has carved out some odd-sized front covers crank shaft extensions end up same place spinner Recently Bill really tried novelty put front half case crankshaft HP 40 onto Max 40 FSR result very nice 8 oz engine however didnt run too well Bill attributes loss per formance tp smaller porting HP crankshaft feels almost double port Max crank gets fuel/air mtxture chamber turn gives power Bill stated really likes guts Max 45 has just too rough suit him stunt likes combustion chamber design 45 still engine has rough spots dont please him have running HP 40 success seem have adjust timing sleeve seems about 015 drop liner will make HP run better stunt Popular venturis HP 290 296 range writer has some limited expe riencewith Max 40 FSR does ap pear very good engine Tank height problem Werwage suggests tank Vt off beams better run experienced wind-up consecutive maneuvers have yet able try adjusting tank height thing certain Max can flown right out box looks like good engine certainly can about same average better average 5T46 reworking can use 015-size lines advantage information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Zilch/Mathews continued page 45 used effectively rib backed up scrap X 2 pine prevent breaking rib Check absolute free movement leadouts pushrod cut trim until satisfied Epoxy V8tt brass tubes side tip lead weights outside tip After epoxy cures remove wing jig Plank center section install cap strips using CA wherever possible Complete wing adding needed wing-tip con tour fillers sanding point ready-for-covering cover until wing installed fuselage Tail Feathers Cut 3/l6ir balsa correct length epoxy spruce spars stab elevator Trace outlines onto blanks using carbon paper under plans cut Sand airfoil section add offset rudder Leave center leading edge stab flat joint fuselage keel Fuselage Trace bulkhead patterns onto plywood using carbon paper under plans Note difference motor bearer notches varying powerplants Use carbon paper technique develop two identical fuselage sides 1/ott sheet choose closely matched pieces wood Develop 1/16 ply doublers using balsa sides pattern Join balsa sides contact cement 5-minute epoxy Mark mid-line position bulkheads onto straight grained flat piece 3/16 balsa Attach bulkheads 2 & 3 top using 5-minute epoxy Check parallelism 90-degree triangle Epoxy stab rear top checking mid lines parallel Epoxy maple motor bearers fuse lage bulkheads Hold alignment 102 Model Aviation yo Model IKIT $395Complete 79 Catalog $100 16 WINGSPAN OUiDE OF RUBBER MODEL SUPPLItS GEE BEE R-1 DECALS 2 1 scale S LETTERING EXCEPT THOSE OF-Ilk THE WINGS GRANGERPOST WILLIAMSPAID 181 PAWNEE ST SAN MARCOS Ca 92069 C-clamps masking tape pins Allow epoxy cure pull tailpost together directly over mid-line mark CA fuselage sides top crutch Slide wing cut-out remov ing fuselage work surface Sand trim sides clearance needed pushrod stub will slide through some bending /8th sides Measure equal height wing above work surface equal distance leading edge stab Use Hobbypoxy Thixotropic epoxy attach wing accessible areas cut bulkhead 3 Temporarily tape elevator stabilizer control horn CA place Cut slot fuselage side clear heavy duty pushrod bending necessary clearance Project wing pushrod stub full up posi tion join rear pushrod 3/32 ID brass tube soldered joint Mount previously bent landing gear wire bulkhead nylon landing gear brackets Epoxy assembly onto bulkhead 2 maple bearers Plank bottom up bulkhead using CA Sheeting cross grained Remove assembly work surface Cut sand top bottom contour Position engine bearers mark drill 9/64-in holes 4 X 40 T-nuts Cut trim nose blocks clear engine attach 5-minute epoxy Cut hatch inside bulkheads sides Pencil-mark rear limit hatch onto sides reference glue a block position hatch place glue sides front perimeter around 3/16 hatch just removable por tion glue dry cut through t using marks guide razor saw Remove hatch install holddown hardware Cut bulkhead 4 turtle deck sides firm /8 sheet CA 4 crutch bevel joint sides neat fit crutch CA place Cut turtle deck clear fin Hinge elevator stab using method used classic cloth hinges Sig glue Permanently attach horn clevis adjusting neutral trimming cut-out side free movement Trim turtle deck neat fit fin epoxy fin stab slot Check right angle 900 triangle Fill voids wing-fuselage joint Thixotropic epoxy forming fillet moistened finger Sand wing fuselage members Finishing wishing authenticity should cover Silkspan Testors Hep durability beauty impor tant contemporary finishes recom mended covered wings trans parent MonoKote masking off out lines electricians tape news paper applying two coats K&B filler sanding between coats filler fine sanded #380 paper whole works sprayed two coats Perfect White Poly-urethane paint Coat tank engine areas resin epoxy fuelproofing pinstripes prototype D&J Multi-stripe numbers letters vinyl stick items office supply building model airplanes 30 years ago spinner genuine Froom definitive name spinners tanks back long since out business powerplant Atwood Triumph 49 last large bore engine bear design genius Bill wood have flown Super Duper Zilch Fox 35 Although lacking brute strength Triumph Fox adequate pull aircraft through stunt pattern Maneuvers models era somewhat different being open abrupt execution verted flight requires definite up down really elevator horizontal 8s use up lot air space Flight charac teristics delightful no vicious habits Grooving excellent did wheelrolls elder son taking photos never seen such thing Wheel-rolls part event early days hope choose con struct new improved Super Duper receive much genuine pleasure yours have Engines/Lee continued page 49 valve Schnuerle ported ringed designs Several times have mentioned bar stock engines term used literally hog new crankcase out solid chunk bar aluminum new prototype engine awful lot work make patterns core box get crankcase casting much simpler cheaper use bar stock make one-of-a-kind crankcases unu sual find large production RC engines made way line utilizes solid aluminum instead castings crankcases Profi engines imported Nelson Products manufactured West Ger come five sizes 10 176 cc 76 1265 cc Almost part engine except bearings car buretor carburetor housing machined solid metal stock wrought heat treated aluminum much stronger stable cast mater ial crankcase machined out solid aluminum aluminum cylinder jacket integral Schnuerle bypass ports screws top hardened steel liner held place conventional bar-stock squish-band head single-ringed ma chined piston utilized carburetor different since uses sliding February 1979 103
Edition: Model Aviation - 1979/02
Page Numbers: 42, 43, 44, 102, 103
Di iron text ci s ier J es fling wn ships Theau o see N mo NO OCR TEXT Rati thei Pdoti w si half itboard tip wing jig iminated v Ce spars e true wi le block s warped Other str lf explanatc fuselage ont technique co nearly goof add consi ace spar lem n epoxy iti such used 1/16 crut F rus e quick-si Stuff 2 alsa use yet ed wrn ig being stituted ints arc ANNOUNCING Fast Steep Climb FLat Slow Glide 4 new P 30 class model designed novice mind has potential win toughest THE POTENT30 Deluxe kit teatures include Rolled balsa tusela o e wing mount dt Completed prop ancf nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality tissue abed contest rubber Detailed instructions flying tips help win CAT NO R2 $6g5 PP check mosey order CHAS WERLE 3620 MORSE AVE N08 SACTO CALIF g5821 P 0 Box 2490-MA LA MESA AUF 92041 GET ORGANIZED Hates set vi 4 stuidy tiles haMs aver 4 yeats vi yavi tavarite 9ii wagautnes 4 MAG FILES $495 Send $490 pius 5100 lv pasiage handling iv DON INDUSTRIES PO BOX 388-k DOVER NH 03820 CL Aerobatics/Paul continued page 41 FAI tryouts knows what needed good Contestbut needs some help Any other site representatives wish Considered FAI stunt tryouts should Contact PAMPA president Keith Trostle 10900 Phillips Drive Upper Marlboro MD 20870 Maybe FAI speed people should drop stunt try outs learn make official flight Aero-Challenge Post Mortem Bill Allen DeKaIb Illinois knocks himself out year set up two-day extrava ganza lots control-line events great awards past contest 137 contestants generated $129775 Jerry Lewis Labor Day Telethon Stunt instance 33 entrants four classes included some top National qualifiers Unfortunately everyone shares enthusiasm toy airplanes asso ciated activities Bill sadly received dis couraging letter Wurlitzer Company site 1978 Contest Ac cording facilities manager concerned over protecting investment landscaping underground sprinkler system also felt children present under proper control Some fool actually playing fountain Therefore regret Wurlitzer cannot offer facilities future model meets signed R G Myrland Fa cilities Manager narrow-minded such wholesome activity people involved plus spectators added donation raised Telethon Wurlitzers margn profit slim cant support civic activities such Lets hope Bill Allen can find another site Aero-Challenge Swept-forward trailing edge idea has used Bill Werwage several planes recently also has tried Al Rabe Bob Gialdini Don Shultz Bob Hunt said recently too go ing cut foam wing try idea next year claim method wtth swept-forward trailing edge plane will yaw According ex perts air spilling off conventional T F flap deflected helps create yaw Hunt cites example grasping 12-inch ruler middle drawing through pan water ruler will yaw back forth However piece wood cut glued Center represent swept forward trailing edge does ex hibit same tendencies obvious sweptforward trailing edge deflected flap does meet air flow flat across entire surface rather air chan nelled spilled off ends Werwage trailing edge sweep some 225 inches Bob trying two configurations 15 2 inches Forties coming strong switch 40-size engine becoming roar rather trickle HP-40 Max 40 FSR getting majority stunters Talking Bill Werwage recently said has experimenting HP both Max 40 45 well ST 46 during 1978 new plane will built accommodate four en gines accomplished Well Bills resident machinist has carved out some odd-sized front covers crank shaft extensions end up same place spinner Recently Bill really tried novelty put front half case crankshaft HP 40 onto Max 40 FSR result very nice 8 oz engine however didnt run too well Bill attributes loss per formance tp smaller porting HP crankshaft feels almost double port Max crank gets fuel/air mtxture chamber turn gives power Bill stated really likes guts Max 45 has just too rough suit him stunt likes combustion chamber design 45 still engine has rough spots dont please him have running HP 40 success seem have adjust timing sleeve seems about 015 drop liner will make HP run better stunt Popular venturis HP 290 296 range writer has some limited expe riencewith Max 40 FSR does ap pear very good engine Tank height problem Werwage suggests tank Vt off beams better run experienced wind-up consecutive maneuvers have yet able try adjusting tank height thing certain Max can flown right out box looks like good engine certainly can about same average better average 5T46 reworking can use 015-size lines advantage information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Zilch/Mathews continued page 45 used effectively rib backed up scrap X 2 pine prevent breaking rib Check absolute free movement leadouts pushrod cut trim until satisfied Epoxy V8tt brass tubes side tip lead weights outside tip After epoxy cures remove wing jig Plank center section install cap strips using CA wherever possible Complete wing adding needed wing-tip con tour fillers sanding point ready-for-covering cover until wing installed fuselage Tail Feathers Cut 3/l6ir balsa correct length epoxy spruce spars stab elevator Trace outlines onto blanks using carbon paper under plans cut Sand airfoil section add offset rudder Leave center leading edge stab flat joint fuselage keel Fuselage Trace bulkhead patterns onto plywood using carbon paper under plans Note difference motor bearer notches varying powerplants Use carbon paper technique develop two identical fuselage sides 1/ott sheet choose closely matched pieces wood Develop 1/16 ply doublers using balsa sides pattern Join balsa sides contact cement 5-minute epoxy Mark mid-line position bulkheads onto straight grained flat piece 3/16 balsa Attach bulkheads 2 & 3 top using 5-minute epoxy Check parallelism 90-degree triangle Epoxy stab rear top checking mid lines parallel Epoxy maple motor bearers fuse lage bulkheads Hold alignment 102 Model Aviation yo Model IKIT $395Complete 79 Catalog $100 16 WINGSPAN OUiDE OF RUBBER MODEL SUPPLItS GEE BEE R-1 DECALS 2 1 scale S LETTERING EXCEPT THOSE OF-Ilk THE WINGS GRANGERPOST WILLIAMSPAID 181 PAWNEE ST SAN MARCOS Ca 92069 C-clamps masking tape pins Allow epoxy cure pull tailpost together directly over mid-line mark CA fuselage sides top crutch Slide wing cut-out remov ing fuselage work surface Sand trim sides clearance needed pushrod stub will slide through some bending /8th sides Measure equal height wing above work surface equal distance leading edge stab Use Hobbypoxy Thixotropic epoxy attach wing accessible areas cut bulkhead 3 Temporarily tape elevator stabilizer control horn CA place Cut slot fuselage side clear heavy duty pushrod bending necessary clearance Project wing pushrod stub full up posi tion join rear pushrod 3/32 ID brass tube soldered joint Mount previously bent landing gear wire bulkhead nylon landing gear brackets Epoxy assembly onto bulkhead 2 maple bearers Plank bottom up bulkhead using CA Sheeting cross grained Remove assembly work surface Cut sand top bottom contour Position engine bearers mark drill 9/64-in holes 4 X 40 T-nuts Cut trim nose blocks clear engine attach 5-minute epoxy Cut hatch inside bulkheads sides Pencil-mark rear limit hatch onto sides reference glue a block position hatch place glue sides front perimeter around 3/16 hatch just removable por tion glue dry cut through t using marks guide razor saw Remove hatch install holddown hardware Cut bulkhead 4 turtle deck sides firm /8 sheet CA 4 crutch bevel joint sides neat fit crutch CA place Cut turtle deck clear fin Hinge elevator stab using method used classic cloth hinges Sig glue Permanently attach horn clevis adjusting neutral trimming cut-out side free movement Trim turtle deck neat fit fin epoxy fin stab slot Check right angle 900 triangle Fill voids wing-fuselage joint Thixotropic epoxy forming fillet moistened finger Sand wing fuselage members Finishing wishing authenticity should cover Silkspan Testors Hep durability beauty impor tant contemporary finishes recom mended covered wings trans parent MonoKote masking off out lines electricians tape news paper applying two coats K&B filler sanding between coats filler fine sanded #380 paper whole works sprayed two coats Perfect White Poly-urethane paint Coat tank engine areas resin epoxy fuelproofing pinstripes prototype D&J Multi-stripe numbers letters vinyl stick items office supply building model airplanes 30 years ago spinner genuine Froom definitive name spinners tanks back long since out business powerplant Atwood Triumph 49 last large bore engine bear design genius Bill wood have flown Super Duper Zilch Fox 35 Although lacking brute strength Triumph Fox adequate pull aircraft through stunt pattern Maneuvers models era somewhat different being open abrupt execution verted flight requires definite up down really elevator horizontal 8s use up lot air space Flight charac teristics delightful no vicious habits Grooving excellent did wheelrolls elder son taking photos never seen such thing Wheel-rolls part event early days hope choose con struct new improved Super Duper receive much genuine pleasure yours have Engines/Lee continued page 49 valve Schnuerle ported ringed designs Several times have mentioned bar stock engines term used literally hog new crankcase out solid chunk bar aluminum new prototype engine awful lot work make patterns core box get crankcase casting much simpler cheaper use bar stock make one-of-a-kind crankcases unu sual find large production RC engines made way line utilizes solid aluminum instead castings crankcases Profi engines imported Nelson Products manufactured West Ger come five sizes 10 176 cc 76 1265 cc Almost part engine except bearings car buretor carburetor housing machined solid metal stock wrought heat treated aluminum much stronger stable cast mater ial crankcase machined out solid aluminum aluminum cylinder jacket integral Schnuerle bypass ports screws top hardened steel liner held place conventional bar-stock squish-band head single-ringed ma chined piston utilized carburetor different since uses sliding February 1979 103
Edition: Model Aviation - 1979/02
Page Numbers: 42, 43, 44, 102, 103
Di iron text ci s ier J es fling wn ships Theau o see N mo NO OCR TEXT Rati thei Pdoti w si half itboard tip wing jig iminated v Ce spars e true wi le block s warped Other str lf explanatc fuselage ont technique co nearly goof add consi ace spar lem n epoxy iti such used 1/16 crut F rus e quick-si Stuff 2 alsa use yet ed wrn ig being stituted ints arc ANNOUNCING Fast Steep Climb FLat Slow Glide 4 new P 30 class model designed novice mind has potential win toughest THE POTENT30 Deluxe kit teatures include Rolled balsa tusela o e wing mount dt Completed prop ancf nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality tissue abed contest rubber Detailed instructions flying tips help win CAT NO R2 $6g5 PP check mosey order CHAS WERLE 3620 MORSE AVE N08 SACTO CALIF g5821 P 0 Box 2490-MA LA MESA AUF 92041 GET ORGANIZED Hates set vi 4 stuidy tiles haMs aver 4 yeats vi yavi tavarite 9ii wagautnes 4 MAG FILES $495 Send $490 pius 5100 lv pasiage handling iv DON INDUSTRIES PO BOX 388-k DOVER NH 03820 CL Aerobatics/Paul continued page 41 FAI tryouts knows what needed good Contestbut needs some help Any other site representatives wish Considered FAI stunt tryouts should Contact PAMPA president Keith Trostle 10900 Phillips Drive Upper Marlboro MD 20870 Maybe FAI speed people should drop stunt try outs learn make official flight Aero-Challenge Post Mortem Bill Allen DeKaIb Illinois knocks himself out year set up two-day extrava ganza lots control-line events great awards past contest 137 contestants generated $129775 Jerry Lewis Labor Day Telethon Stunt instance 33 entrants four classes included some top National qualifiers Unfortunately everyone shares enthusiasm toy airplanes asso ciated activities Bill sadly received dis couraging letter Wurlitzer Company site 1978 Contest Ac cording facilities manager concerned over protecting investment landscaping underground sprinkler system also felt children present under proper control Some fool actually playing fountain Therefore regret Wurlitzer cannot offer facilities future model meets signed R G Myrland Fa cilities Manager narrow-minded such wholesome activity people involved plus spectators added donation raised Telethon Wurlitzers margn profit slim cant support civic activities such Lets hope Bill Allen can find another site Aero-Challenge Swept-forward trailing edge idea has used Bill Werwage several planes recently also has tried Al Rabe Bob Gialdini Don Shultz Bob Hunt said recently too go ing cut foam wing try idea next year claim method wtth swept-forward trailing edge plane will yaw According ex perts air spilling off conventional T F flap deflected helps create yaw Hunt cites example grasping 12-inch ruler middle drawing through pan water ruler will yaw back forth However piece wood cut glued Center represent swept forward trailing edge does ex hibit same tendencies obvious sweptforward trailing edge deflected flap does meet air flow flat across entire surface rather air chan nelled spilled off ends Werwage trailing edge sweep some 225 inches Bob trying two configurations 15 2 inches Forties coming strong switch 40-size engine becoming roar rather trickle HP-40 Max 40 FSR getting majority stunters Talking Bill Werwage recently said has experimenting HP both Max 40 45 well ST 46 during 1978 new plane will built accommodate four en gines accomplished Well Bills resident machinist has carved out some odd-sized front covers crank shaft extensions end up same place spinner Recently Bill really tried novelty put front half case crankshaft HP 40 onto Max 40 FSR result very nice 8 oz engine however didnt run too well Bill attributes loss per formance tp smaller porting HP crankshaft feels almost double port Max crank gets fuel/air mtxture chamber turn gives power Bill stated really likes guts Max 45 has just too rough suit him stunt likes combustion chamber design 45 still engine has rough spots dont please him have running HP 40 success seem have adjust timing sleeve seems about 015 drop liner will make HP run better stunt Popular venturis HP 290 296 range writer has some limited expe riencewith Max 40 FSR does ap pear very good engine Tank height problem Werwage suggests tank Vt off beams better run experienced wind-up consecutive maneuvers have yet able try adjusting tank height thing certain Max can flown right out box looks like good engine certainly can about same average better average 5T46 reworking can use 015-size lines advantage information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Zilch/Mathews continued page 45 used effectively rib backed up scrap X 2 pine prevent breaking rib Check absolute free movement leadouts pushrod cut trim until satisfied Epoxy V8tt brass tubes side tip lead weights outside tip After epoxy cures remove wing jig Plank center section install cap strips using CA wherever possible Complete wing adding needed wing-tip con tour fillers sanding point ready-for-covering cover until wing installed fuselage Tail Feathers Cut 3/l6ir balsa correct length epoxy spruce spars stab elevator Trace outlines onto blanks using carbon paper under plans cut Sand airfoil section add offset rudder Leave center leading edge stab flat joint fuselage keel Fuselage Trace bulkhead patterns onto plywood using carbon paper under plans Note difference motor bearer notches varying powerplants Use carbon paper technique develop two identical fuselage sides 1/ott sheet choose closely matched pieces wood Develop 1/16 ply doublers using balsa sides pattern Join balsa sides contact cement 5-minute epoxy Mark mid-line position bulkheads onto straight grained flat piece 3/16 balsa Attach bulkheads 2 & 3 top using 5-minute epoxy Check parallelism 90-degree triangle Epoxy stab rear top checking mid lines parallel Epoxy maple motor bearers fuse lage bulkheads Hold alignment 102 Model Aviation yo Model IKIT $395Complete 79 Catalog $100 16 WINGSPAN OUiDE OF RUBBER MODEL SUPPLItS GEE BEE R-1 DECALS 2 1 scale S LETTERING EXCEPT THOSE OF-Ilk THE WINGS GRANGERPOST WILLIAMSPAID 181 PAWNEE ST SAN MARCOS Ca 92069 C-clamps masking tape pins Allow epoxy cure pull tailpost together directly over mid-line mark CA fuselage sides top crutch Slide wing cut-out remov ing fuselage work surface Sand trim sides clearance needed pushrod stub will slide through some bending /8th sides Measure equal height wing above work surface equal distance leading edge stab Use Hobbypoxy Thixotropic epoxy attach wing accessible areas cut bulkhead 3 Temporarily tape elevator stabilizer control horn CA place Cut slot fuselage side clear heavy duty pushrod bending necessary clearance Project wing pushrod stub full up posi tion join rear pushrod 3/32 ID brass tube soldered joint Mount previously bent landing gear wire bulkhead nylon landing gear brackets Epoxy assembly onto bulkhead 2 maple bearers Plank bottom up bulkhead using CA Sheeting cross grained Remove assembly work surface Cut sand top bottom contour Position engine bearers mark drill 9/64-in holes 4 X 40 T-nuts Cut trim nose blocks clear engine attach 5-minute epoxy Cut hatch inside bulkheads sides Pencil-mark rear limit hatch onto sides reference glue a block position hatch place glue sides front perimeter around 3/16 hatch just removable por tion glue dry cut through t using marks guide razor saw Remove hatch install holddown hardware Cut bulkhead 4 turtle deck sides firm /8 sheet CA 4 crutch bevel joint sides neat fit crutch CA place Cut turtle deck clear fin Hinge elevator stab using method used classic cloth hinges Sig glue Permanently attach horn clevis adjusting neutral trimming cut-out side free movement Trim turtle deck neat fit fin epoxy fin stab slot Check right angle 900 triangle Fill voids wing-fuselage joint Thixotropic epoxy forming fillet moistened finger Sand wing fuselage members Finishing wishing authenticity should cover Silkspan Testors Hep durability beauty impor tant contemporary finishes recom mended covered wings trans parent MonoKote masking off out lines electricians tape news paper applying two coats K&B filler sanding between coats filler fine sanded #380 paper whole works sprayed two coats Perfect White Poly-urethane paint Coat tank engine areas resin epoxy fuelproofing pinstripes prototype D&J Multi-stripe numbers letters vinyl stick items office supply building model airplanes 30 years ago spinner genuine Froom definitive name spinners tanks back long since out business powerplant Atwood Triumph 49 last large bore engine bear design genius Bill wood have flown Super Duper Zilch Fox 35 Although lacking brute strength Triumph Fox adequate pull aircraft through stunt pattern Maneuvers models era somewhat different being open abrupt execution verted flight requires definite up down really elevator horizontal 8s use up lot air space Flight charac teristics delightful no vicious habits Grooving excellent did wheelrolls elder son taking photos never seen such thing Wheel-rolls part event early days hope choose con struct new improved Super Duper receive much genuine pleasure yours have Engines/Lee continued page 49 valve Schnuerle ported ringed designs Several times have mentioned bar stock engines term used literally hog new crankcase out solid chunk bar aluminum new prototype engine awful lot work make patterns core box get crankcase casting much simpler cheaper use bar stock make one-of-a-kind crankcases unu sual find large production RC engines made way line utilizes solid aluminum instead castings crankcases Profi engines imported Nelson Products manufactured West Ger come five sizes 10 176 cc 76 1265 cc Almost part engine except bearings car buretor carburetor housing machined solid metal stock wrought heat treated aluminum much stronger stable cast mater ial crankcase machined out solid aluminum aluminum cylinder jacket integral Schnuerle bypass ports screws top hardened steel liner held place conventional bar-stock squish-band head single-ringed ma chined piston utilized carburetor different since uses sliding February 1979 103
Edition: Model Aviation - 1979/02
Page Numbers: 42, 43, 44, 102, 103
Di iron text ci s ier J es fling wn ships Theau o see N mo NO OCR TEXT Rati thei Pdoti w si half itboard tip wing jig iminated v Ce spars e true wi le block s warped Other str lf explanatc fuselage ont technique co nearly goof add consi ace spar lem n epoxy iti such used 1/16 crut F rus e quick-si Stuff 2 alsa use yet ed wrn ig being stituted ints arc ANNOUNCING Fast Steep Climb FLat Slow Glide 4 new P 30 class model designed novice mind has potential win toughest THE POTENT30 Deluxe kit teatures include Rolled balsa tusela o e wing mount dt Completed prop ancf nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality tissue abed contest rubber Detailed instructions flying tips help win CAT NO R2 $6g5 PP check mosey order CHAS WERLE 3620 MORSE AVE N08 SACTO CALIF g5821 P 0 Box 2490-MA LA MESA AUF 92041 GET ORGANIZED Hates set vi 4 stuidy tiles haMs aver 4 yeats vi yavi tavarite 9ii wagautnes 4 MAG FILES $495 Send $490 pius 5100 lv pasiage handling iv DON INDUSTRIES PO BOX 388-k DOVER NH 03820 CL Aerobatics/Paul continued page 41 FAI tryouts knows what needed good Contestbut needs some help Any other site representatives wish Considered FAI stunt tryouts should Contact PAMPA president Keith Trostle 10900 Phillips Drive Upper Marlboro MD 20870 Maybe FAI speed people should drop stunt try outs learn make official flight Aero-Challenge Post Mortem Bill Allen DeKaIb Illinois knocks himself out year set up two-day extrava ganza lots control-line events great awards past contest 137 contestants generated $129775 Jerry Lewis Labor Day Telethon Stunt instance 33 entrants four classes included some top National qualifiers Unfortunately everyone shares enthusiasm toy airplanes asso ciated activities Bill sadly received dis couraging letter Wurlitzer Company site 1978 Contest Ac cording facilities manager concerned over protecting investment landscaping underground sprinkler system also felt children present under proper control Some fool actually playing fountain Therefore regret Wurlitzer cannot offer facilities future model meets signed R G Myrland Fa cilities Manager narrow-minded such wholesome activity people involved plus spectators added donation raised Telethon Wurlitzers margn profit slim cant support civic activities such Lets hope Bill Allen can find another site Aero-Challenge Swept-forward trailing edge idea has used Bill Werwage several planes recently also has tried Al Rabe Bob Gialdini Don Shultz Bob Hunt said recently too go ing cut foam wing try idea next year claim method wtth swept-forward trailing edge plane will yaw According ex perts air spilling off conventional T F flap deflected helps create yaw Hunt cites example grasping 12-inch ruler middle drawing through pan water ruler will yaw back forth However piece wood cut glued Center represent swept forward trailing edge does ex hibit same tendencies obvious sweptforward trailing edge deflected flap does meet air flow flat across entire surface rather air chan nelled spilled off ends Werwage trailing edge sweep some 225 inches Bob trying two configurations 15 2 inches Forties coming strong switch 40-size engine becoming roar rather trickle HP-40 Max 40 FSR getting majority stunters Talking Bill Werwage recently said has experimenting HP both Max 40 45 well ST 46 during 1978 new plane will built accommodate four en gines accomplished Well Bills resident machinist has carved out some odd-sized front covers crank shaft extensions end up same place spinner Recently Bill really tried novelty put front half case crankshaft HP 40 onto Max 40 FSR result very nice 8 oz engine however didnt run too well Bill attributes loss per formance tp smaller porting HP crankshaft feels almost double port Max crank gets fuel/air mtxture chamber turn gives power Bill stated really likes guts Max 45 has just too rough suit him stunt likes combustion chamber design 45 still engine has rough spots dont please him have running HP 40 success seem have adjust timing sleeve seems about 015 drop liner will make HP run better stunt Popular venturis HP 290 296 range writer has some limited expe riencewith Max 40 FSR does ap pear very good engine Tank height problem Werwage suggests tank Vt off beams better run experienced wind-up consecutive maneuvers have yet able try adjusting tank height thing certain Max can flown right out box looks like good engine certainly can about same average better average 5T46 reworking can use 015-size lines advantage information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 Zilch/Mathews continued page 45 used effectively rib backed up scrap X 2 pine prevent breaking rib Check absolute free movement leadouts pushrod cut trim until satisfied Epoxy V8tt brass tubes side tip lead weights outside tip After epoxy cures remove wing jig Plank center section install cap strips using CA wherever possible Complete wing adding needed wing-tip con tour fillers sanding point ready-for-covering cover until wing installed fuselage Tail Feathers Cut 3/l6ir balsa correct length epoxy spruce spars stab elevator Trace outlines onto blanks using carbon paper under plans cut Sand airfoil section add offset rudder Leave center leading edge stab flat joint fuselage keel Fuselage Trace bulkhead patterns onto plywood using carbon paper under plans Note difference motor bearer notches varying powerplants Use carbon paper technique develop two identical fuselage sides 1/ott sheet choose closely matched pieces wood Develop 1/16 ply doublers using balsa sides pattern Join balsa sides contact cement 5-minute epoxy Mark mid-line position bulkheads onto straight grained flat piece 3/16 balsa Attach bulkheads 2 & 3 top using 5-minute epoxy Check parallelism 90-degree triangle Epoxy stab rear top checking mid lines parallel Epoxy maple motor bearers fuse lage bulkheads Hold alignment 102 Model Aviation yo Model IKIT $395Complete 79 Catalog $100 16 WINGSPAN OUiDE OF RUBBER MODEL SUPPLItS GEE BEE R-1 DECALS 2 1 scale S LETTERING EXCEPT THOSE OF-Ilk THE WINGS GRANGERPOST WILLIAMSPAID 181 PAWNEE ST SAN MARCOS Ca 92069 C-clamps masking tape pins Allow epoxy cure pull tailpost together directly over mid-line mark CA fuselage sides top crutch Slide wing cut-out remov ing fuselage work surface Sand trim sides clearance needed pushrod stub will slide through some bending /8th sides Measure equal height wing above work surface equal distance leading edge stab Use Hobbypoxy Thixotropic epoxy attach wing accessible areas cut bulkhead 3 Temporarily tape elevator stabilizer control horn CA place Cut slot fuselage side clear heavy duty pushrod bending necessary clearance Project wing pushrod stub full up posi tion join rear pushrod 3/32 ID brass tube soldered joint Mount previously bent landing gear wire bulkhead nylon landing gear brackets Epoxy assembly onto bulkhead 2 maple bearers Plank bottom up bulkhead using CA Sheeting cross grained Remove assembly work surface Cut sand top bottom contour Position engine bearers mark drill 9/64-in holes 4 X 40 T-nuts Cut trim nose blocks clear engine attach 5-minute epoxy Cut hatch inside bulkheads sides Pencil-mark rear limit hatch onto sides reference glue a block position hatch place glue sides front perimeter around 3/16 hatch just removable por tion glue dry cut through t using marks guide razor saw Remove hatch install holddown hardware Cut bulkhead 4 turtle deck sides firm /8 sheet CA 4 crutch bevel joint sides neat fit crutch CA place Cut turtle deck clear fin Hinge elevator stab using method used classic cloth hinges Sig glue Permanently attach horn clevis adjusting neutral trimming cut-out side free movement Trim turtle deck neat fit fin epoxy fin stab slot Check right angle 900 triangle Fill voids wing-fuselage joint Thixotropic epoxy forming fillet moistened finger Sand wing fuselage members Finishing wishing authenticity should cover Silkspan Testors Hep durability beauty impor tant contemporary finishes recom mended covered wings trans parent MonoKote masking off out lines electricians tape news paper applying two coats K&B filler sanding between coats filler fine sanded #380 paper whole works sprayed two coats Perfect White Poly-urethane paint Coat tank engine areas resin epoxy fuelproofing pinstripes prototype D&J Multi-stripe numbers letters vinyl stick items office supply building model airplanes 30 years ago spinner genuine Froom definitive name spinners tanks back long since out business powerplant Atwood Triumph 49 last large bore engine bear design genius Bill wood have flown Super Duper Zilch Fox 35 Although lacking brute strength Triumph Fox adequate pull aircraft through stunt pattern Maneuvers models era somewhat different being open abrupt execution verted flight requires definite up down really elevator horizontal 8s use up lot air space Flight charac teristics delightful no vicious habits Grooving excellent did wheelrolls elder son taking photos never seen such thing Wheel-rolls part event early days hope choose con struct new improved Super Duper receive much genuine pleasure yours have Engines/Lee continued page 49 valve Schnuerle ported ringed designs Several times have mentioned bar stock engines term used literally hog new crankcase out solid chunk bar aluminum new prototype engine awful lot work make patterns core box get crankcase casting much simpler cheaper use bar stock make one-of-a-kind crankcases unu sual find large production RC engines made way line utilizes solid aluminum instead castings crankcases Profi engines imported Nelson Products manufactured West Ger come five sizes 10 176 cc 76 1265 cc Almost part engine except bearings car buretor carburetor housing machined solid metal stock wrought heat treated aluminum much stronger stable cast mater ial crankcase machined out solid aluminum aluminum cylinder jacket integral Schnuerle bypass ports screws top hardened steel liner held place conventional bar-stock squish-band head single-ringed ma chined piston utilized carburetor different since uses sliding February 1979 103