AS MANY OF US fondly recall modcling experiences back late 1940s names like Campus Bee Buzz OK conjure up memories delightful hours spent building flying models powered CO2 engines Compared cantankerous ignition engines flip starting diminutive next smallest Arden Atom 09 gas engines little non-combustion powerplants sheer delight Nearly issue contemporary model mags contained least scale sport competition de sign readily available inex pensive motors Such familiar names McEntee McCullough Willard EhI ing often appeared clever welltested designs Numerous kits also available ranging beginner types Kordas Powerhouse Berkeley introduction glow plug Ray Arden late 1948 subsequent development K&B 02 Infant other subminiature combustion engines signalled beginning decline interest CO2 power fondly remember Ray Arden Olathe Nats 1949 running what time seemed nearly mi croscopic engine wore tie tack can well imagine amazement of us until moment considered 09 smallest engines also recall 17-year-old boy asking ever plan manufacture sell anything small Mr Arden replied Certain ly ever market Sadly man died several years later knowing what prophet Memory can play funny tricks Im relatively sure smallest engines Ardens display smaller contemporary Cox 010 now after 30-year hiatus re sponse shrinking flying sites noise complaint abatement problems fantastic growth interest peanut-sized models second CO2 age upon us Some real old timers might want count compressed air motors age cant since wasnt fairness CO2 engine has never com pletely disappeared Bill Brown having less continuous manufac ture since Campus engines 1948 However introduction Shark Telco really marks first time nearly 30 years can walk friendly hobby shop purchase CO2 engine two recently introduced CO2 pow erplants English manufacture Telco Ticket Equipment imported Sig Shark Harden Associ ates Ltd imported Polks natural compare two new imports familiar Brown Side side immediately given impres sion Telco much larger Brown Shark larger still Such really case three nearly identical exterior dimensions weight massive mounting lugs imports create impression larger size Constructed nylon naturally much thicker alloy lugs Brown lugs Telco use two-bolt mounting Shark em ploys three-hole mount judgment three-hole has distinct advantage using washers adjust side- Continued page 93 September 1977 47 biplane subject easily modeled Flying surfaces rectangular planform fuselage flat four sides except nose center-section struts vertical making easy measure attach spite its boxy appearance Farman surprisingly good flier Outdoor flights average 30-40 seconds occasional 2-minute hops almost going out sight scratch builder likely con test flier has wide open choice someone builds flies Gee Bee Su persportster indicates top pilot same would true multi-engine planes other extreme light plane such Piper Cub places little demand pilot ability contest work element apparent pilot ability important since judges will believe him competent choice subject makes him look bad planes long tail moment slender lightweight fuselage likely possess stability smooth effortless flight worst combination would short tail fuselage small tail surfaces Gee Bee other clas sic racing planes examples type approach stall usually ends disaster Takeoff landing characteristics such highly skilled pilots can expect success Extreme opposites World War Sop withs Bristols monstrous sta bilizers afford greatest possible stabil ity Sopwith 1 Strutter has stabil izer large has never possible make three-point landing full up elevator due ground-cushion ef fect prototype aircraft same problem partially solved use barn-door flaps lower wing As mod els planes have gentle docile flight habits make real pleas ure fly particularly slow speed too scale models exhibit vicious natures recent trend toward larger models disadvantages due higher cost transportation dif ficulties has observation planes easily capable scale-like flight introduction new prop drive units lack power no longer reason build larger model available kits large sizes begin look attractive choice subject widened considerably sport-scale model can expected take twice time required sport plane full-scale type five ten times long Choosing subject has abundant information available decreases research burden thereby increases chance successful completion heavy investment construction time means selection subject should taken lightly An effort being made form na tional scale organization similar formed pattern pylon soaring other groups working AMA purpose group pro vide technical help areas such subject selection documentation construction competition rules material listings evalu ations aid team selection proc ess Interested scale modelers whether free flight control line radio control should write Bob Underwood MORE wM4i3o1Ir 00 same powerYELLOW 4 e6edpitPROPELL eB ~Taco o O90-53 54 e 4 308 Blade63 64358 er74 76 78 508 -each84 86 88 668 949697 q 64 358iO4 106858 5-6114 116 1181 9-6106 1 AC 124 3 Blade Tractort2 5 176150 5-354 6364 508 ORISH 3 Blade Pusher Bk OS 63ST JOHN INDIANA 46373 SCALE DA/p5CART ACE KITS 0 PLANSACCESSORIES REAIIMGE 4REAL JAPANESE TISSLIE-FEOPS j7~OXBAT BROWN CO-2 ENGINES MORRISON17 SPAN COMPLETE CATALOG 50s 1977 CATALOG KIT $4 25MANY HARD TO FIND ITEMS TECN 48500 MC KENZ E HWY P P InniaPIoiia VIDA OREGON 97488BOX 2498LA MESA CALIF 92041 4109 Concord Oaks Dr St Louis Mo 63128 Bob Dolly Wischer RT 1 S-221 Lapham Peak Rd Delafield WI 53018 Farman/J ohnson continued page 47 down-thrust Shark also differs use metal cylinder considerably larger di ameter nylon Telco prop nut rather bolt Telco plated tank Both powerplants uti lize charging gun fits snugly onto nipple-type fitting Early-on Telco nipple nylon recent ex amples have metal fitting charg ing gun does Shark principal mechanical difference tween three engines method speed control three use poppet valves admit gas opening piston strikes top dead center Speed proportionate far poppet dis placed gas admitted faster rpm shorter duration Brown Shark engines adjust C02 volume screwing cylinder up down whereas Telco crankshaft mounted eccentric bearing crankshaft bearing rotated knurled aluminum flange located immedi ately behind prop Raising lowering shaft corresponds remarkably ad vancing retarding spark lever old ignition engines Model As first-effort trainer CO2 power Farman ideal small compact sturdy yet being biplane has oodles wing area make its flight real istic Besides feels like making other run-of-the-mill monoplane Boxy construction straight lines plus verti cal cabane struts make easy build align Although previous models devel oped around Brown CO2 have spans 16-18 inches weigh 20-30 grams Farman Sport has larger area weight Recognizing average hobby shop does stock indoor wood indoor building techniques rather exotic modelers interested trying CO2 scale first time set out develop sturdy trainer model pleasing appearance Much de light resultant model has above-aver age flying ability Average flights outdoors have 30-40 second range several frightening near OOS thermal ones well over two minutes Construction First step purchase sheet light 1/16 3 balsa Pick sheet deal ers rack long grained flaws warps dealer stocks Contest Balsa selection will simplified hut suitable piece can found regular sheet 1/32 basswood no longer exotic item advent Rev Prod ucts basswood line wheels avail able mail Peck Polymers Wil liams Brothers vintage wheels could substituted penalty few grams Cut out two identical fuselage sides 1/16 X 1/16 balsa vertical reinforcements positioned Hot Stuff Jet mers cut noting grain direction Drill bolt holes align sides assemble September 1977 93 THE BIGIS CCOMING Send $100 1977 illustrated cata log complete line Dealers inquiry invited Andrews Aircraft Model Co Inc US Rte 1 & North St Topsfield MA 01983 8878541 Sig Bond Use triangle carpenters square check holding everything position masking tape Allow several hours resin set pull tail post together using fast glue 1/32 balsa fairing positioned formed instantglued place Sig cowl shown gear bent shape over plan attached 1/16 ply former carpet thread wrapped glued Tail surfaces cut 1/16 sheet sanded positioned fast glue Scallops can easily done sandpaper l wing straight-forward involving two identical assemblies center section cut out discarded lower wing Dihedral angle sanded using -in block under tip classic table edge Joints fast glued Cover finish wings before attaching fuse lage Japanese tissue clear dope works fine engine its hardware should installed before covering fuselage handy removable motor set-up can made epoxying nuts onto small piece plywood fast glued back firewall filler nipple mounted 1/32 ply stuck position after rolling tubing loops needed place tank proper position Use scrap balsa hold tank tight finish prototype done Floquil Caboose Red mixed clear nitrate dope Although airbrush would ideal color brushed coat covered well added almost no weight attempt use colored dope much too heavy Now cut cabanes 1/32 ply Mark exit point fuselage side pencil ball-point entry rib bottom Cut thin slots through 1/32 balsa cowl stick cabane through fas ten fast glue tissue cut wing center section top wing posi tioned fast glue checking alignment carefully lower wing installed same way 1/32 bass interplane struts installed fast glue model completed constructing 1/32 bass landing gear frame place fuselage bottom wire attached basswood allowed swing free preventing breakage still looking realistic tailskid cut basswood fast glued tail post Interplane wires monofilament fish ing line threaded through small holes previously drilled struts Tie knot end thread through both holes tighten fast glue wires should tightened enough remove sag functional Roll Out/Dunham continued page 38 lar model cement because sands works easier epoxy white glues seam should tight fit allowed dry thoroughly before proceeding Trace wing outline airfoil highpoint line ball-point pen cut al outline leaving 1/16 around final finish first important step carefully sand about 1/32 tip wash out bottom side area shown plan delicate operation little required dont overdo use small razor plane shape rear airfoil portion blank high point line trailing edge keep ing flat possible use straight edge check Sand out hills valleys using sanding block main tain trailing edge thickness about 1/32 leading edge next should have bit top camber leaving enough thickness front bot tom side curved entry leading edge radius outer wing tip panels should tapered thinned keeping airfoil shape way Next trim exact out line final sand using progressively finer grit down 400 W-D wing next cut four pieces dihedral points ends carefully beveled make correct angles epoxied joints should good tight fit no gaps else disaster waiting wings double entendre Allow cure thoroughly build up glue skin break help strengthen joints fuselage V-notched accept mid-dihedral point wing centered glued place glue fillet under side along fuselage desirable forefinger reinforcement triangle cut edges streamlined glued underside wing Con form finger oval snug custom fit using sandpaper wrapped around dowel pencilStab Rudder horizontal stabilizer cut 1/16 warp-free sheet balsa sanded airfoil section Smooth remove balsa fuzz 400 W-D paper give two coats Sig Lite Coat Using metal straightedge guide part elevator along line shown plan two portions butted together fiat surface -wide Mylar pres sure-sensitive tape pressed place 1/32 ply piece serves stiffener spring guide glued underside D-T spring installed fuse lage epoxied place spring must have enough tension raise pop-up stab 450 angle 012 014 dia wire has found satisfac tory stabilizer glued fuselage slight tilt plans indi cate rudder glued stabilizer should have just hint left offset remaining rigging D-T system self-explanatory plans caution being make sure everything working smoothly proving point actually operating assembly ground before attempting fly After glider completely assembled fuselage wing should given coat sanding sealer followed two coats 50% thinned clear dope generous amount fine sanding between coats visibility likely become problem depending upon part country live light spray coat red orange day-gb dope applied underside outer tips recom mend sake weight build-up Any further decoration best satisfied using favorite design cut Japanese tissue applied between first Applying Heat-Shrink Covering Model Air planes title 32-page book prepared Dan DeLuca Edson Enterprises Print ed heavy slick paper extensively illus trated step-by-step how-to-do-it photo graphs printed 4-colors Dan first place winner 1976 Toledo Show model won vehicle de tailed discussion Pictures text begin materials required tools cover fine point ending trimming detailing have never covered heat-shrink ma terials book invaluable aid already covering materials book will upgrade versatility obtain ing stunning effects color schemes Price $595 plus 50 cents postage hand ling Edson Enterprises Inc 228 Franklin Ave Nutley NJ 07110 product review product review product review 94 Model Aviation nIgut rAview product review product review
Edition: Model Aviation - 1977/09
Page Numbers: 47, 93, 94
AS MANY OF US fondly recall modcling experiences back late 1940s names like Campus Bee Buzz OK conjure up memories delightful hours spent building flying models powered CO2 engines Compared cantankerous ignition engines flip starting diminutive next smallest Arden Atom 09 gas engines little non-combustion powerplants sheer delight Nearly issue contemporary model mags contained least scale sport competition de sign readily available inex pensive motors Such familiar names McEntee McCullough Willard EhI ing often appeared clever welltested designs Numerous kits also available ranging beginner types Kordas Powerhouse Berkeley introduction glow plug Ray Arden late 1948 subsequent development K&B 02 Infant other subminiature combustion engines signalled beginning decline interest CO2 power fondly remember Ray Arden Olathe Nats 1949 running what time seemed nearly mi croscopic engine wore tie tack can well imagine amazement of us until moment considered 09 smallest engines also recall 17-year-old boy asking ever plan manufacture sell anything small Mr Arden replied Certain ly ever market Sadly man died several years later knowing what prophet Memory can play funny tricks Im relatively sure smallest engines Ardens display smaller contemporary Cox 010 now after 30-year hiatus re sponse shrinking flying sites noise complaint abatement problems fantastic growth interest peanut-sized models second CO2 age upon us Some real old timers might want count compressed air motors age cant since wasnt fairness CO2 engine has never com pletely disappeared Bill Brown having less continuous manufac ture since Campus engines 1948 However introduction Shark Telco really marks first time nearly 30 years can walk friendly hobby shop purchase CO2 engine two recently introduced CO2 pow erplants English manufacture Telco Ticket Equipment imported Sig Shark Harden Associ ates Ltd imported Polks natural compare two new imports familiar Brown Side side immediately given impres sion Telco much larger Brown Shark larger still Such really case three nearly identical exterior dimensions weight massive mounting lugs imports create impression larger size Constructed nylon naturally much thicker alloy lugs Brown lugs Telco use two-bolt mounting Shark em ploys three-hole mount judgment three-hole has distinct advantage using washers adjust side- Continued page 93 September 1977 47 biplane subject easily modeled Flying surfaces rectangular planform fuselage flat four sides except nose center-section struts vertical making easy measure attach spite its boxy appearance Farman surprisingly good flier Outdoor flights average 30-40 seconds occasional 2-minute hops almost going out sight scratch builder likely con test flier has wide open choice someone builds flies Gee Bee Su persportster indicates top pilot same would true multi-engine planes other extreme light plane such Piper Cub places little demand pilot ability contest work element apparent pilot ability important since judges will believe him competent choice subject makes him look bad planes long tail moment slender lightweight fuselage likely possess stability smooth effortless flight worst combination would short tail fuselage small tail surfaces Gee Bee other clas sic racing planes examples type approach stall usually ends disaster Takeoff landing characteristics such highly skilled pilots can expect success Extreme opposites World War Sop withs Bristols monstrous sta bilizers afford greatest possible stabil ity Sopwith 1 Strutter has stabil izer large has never possible make three-point landing full up elevator due ground-cushion ef fect prototype aircraft same problem partially solved use barn-door flaps lower wing As mod els planes have gentle docile flight habits make real pleas ure fly particularly slow speed too scale models exhibit vicious natures recent trend toward larger models disadvantages due higher cost transportation dif ficulties has observation planes easily capable scale-like flight introduction new prop drive units lack power no longer reason build larger model available kits large sizes begin look attractive choice subject widened considerably sport-scale model can expected take twice time required sport plane full-scale type five ten times long Choosing subject has abundant information available decreases research burden thereby increases chance successful completion heavy investment construction time means selection subject should taken lightly An effort being made form na tional scale organization similar formed pattern pylon soaring other groups working AMA purpose group pro vide technical help areas such subject selection documentation construction competition rules material listings evalu ations aid team selection proc ess Interested scale modelers whether free flight control line radio control should write Bob Underwood MORE wM4i3o1Ir 00 same powerYELLOW 4 e6edpitPROPELL eB ~Taco o O90-53 54 e 4 308 Blade63 64358 er74 76 78 508 -each84 86 88 668 949697 q 64 358iO4 106858 5-6114 116 1181 9-6106 1 AC 124 3 Blade Tractort2 5 176150 5-354 6364 508 ORISH 3 Blade Pusher Bk OS 63ST JOHN INDIANA 46373 SCALE DA/p5CART ACE KITS 0 PLANSACCESSORIES REAIIMGE 4REAL JAPANESE TISSLIE-FEOPS j7~OXBAT BROWN CO-2 ENGINES MORRISON17 SPAN COMPLETE CATALOG 50s 1977 CATALOG KIT $4 25MANY HARD TO FIND ITEMS TECN 48500 MC KENZ E HWY P P InniaPIoiia VIDA OREGON 97488BOX 2498LA MESA CALIF 92041 4109 Concord Oaks Dr St Louis Mo 63128 Bob Dolly Wischer RT 1 S-221 Lapham Peak Rd Delafield WI 53018 Farman/J ohnson continued page 47 down-thrust Shark also differs use metal cylinder considerably larger di ameter nylon Telco prop nut rather bolt Telco plated tank Both powerplants uti lize charging gun fits snugly onto nipple-type fitting Early-on Telco nipple nylon recent ex amples have metal fitting charg ing gun does Shark principal mechanical difference tween three engines method speed control three use poppet valves admit gas opening piston strikes top dead center Speed proportionate far poppet dis placed gas admitted faster rpm shorter duration Brown Shark engines adjust C02 volume screwing cylinder up down whereas Telco crankshaft mounted eccentric bearing crankshaft bearing rotated knurled aluminum flange located immedi ately behind prop Raising lowering shaft corresponds remarkably ad vancing retarding spark lever old ignition engines Model As first-effort trainer CO2 power Farman ideal small compact sturdy yet being biplane has oodles wing area make its flight real istic Besides feels like making other run-of-the-mill monoplane Boxy construction straight lines plus verti cal cabane struts make easy build align Although previous models devel oped around Brown CO2 have spans 16-18 inches weigh 20-30 grams Farman Sport has larger area weight Recognizing average hobby shop does stock indoor wood indoor building techniques rather exotic modelers interested trying CO2 scale first time set out develop sturdy trainer model pleasing appearance Much de light resultant model has above-aver age flying ability Average flights outdoors have 30-40 second range several frightening near OOS thermal ones well over two minutes Construction First step purchase sheet light 1/16 3 balsa Pick sheet deal ers rack long grained flaws warps dealer stocks Contest Balsa selection will simplified hut suitable piece can found regular sheet 1/32 basswood no longer exotic item advent Rev Prod ucts basswood line wheels avail able mail Peck Polymers Wil liams Brothers vintage wheels could substituted penalty few grams Cut out two identical fuselage sides 1/16 X 1/16 balsa vertical reinforcements positioned Hot Stuff Jet mers cut noting grain direction Drill bolt holes align sides assemble September 1977 93 THE BIGIS CCOMING Send $100 1977 illustrated cata log complete line Dealers inquiry invited Andrews Aircraft Model Co Inc US Rte 1 & North St Topsfield MA 01983 8878541 Sig Bond Use triangle carpenters square check holding everything position masking tape Allow several hours resin set pull tail post together using fast glue 1/32 balsa fairing positioned formed instantglued place Sig cowl shown gear bent shape over plan attached 1/16 ply former carpet thread wrapped glued Tail surfaces cut 1/16 sheet sanded positioned fast glue Scallops can easily done sandpaper l wing straight-forward involving two identical assemblies center section cut out discarded lower wing Dihedral angle sanded using -in block under tip classic table edge Joints fast glued Cover finish wings before attaching fuse lage Japanese tissue clear dope works fine engine its hardware should installed before covering fuselage handy removable motor set-up can made epoxying nuts onto small piece plywood fast glued back firewall filler nipple mounted 1/32 ply stuck position after rolling tubing loops needed place tank proper position Use scrap balsa hold tank tight finish prototype done Floquil Caboose Red mixed clear nitrate dope Although airbrush would ideal color brushed coat covered well added almost no weight attempt use colored dope much too heavy Now cut cabanes 1/32 ply Mark exit point fuselage side pencil ball-point entry rib bottom Cut thin slots through 1/32 balsa cowl stick cabane through fas ten fast glue tissue cut wing center section top wing posi tioned fast glue checking alignment carefully lower wing installed same way 1/32 bass interplane struts installed fast glue model completed constructing 1/32 bass landing gear frame place fuselage bottom wire attached basswood allowed swing free preventing breakage still looking realistic tailskid cut basswood fast glued tail post Interplane wires monofilament fish ing line threaded through small holes previously drilled struts Tie knot end thread through both holes tighten fast glue wires should tightened enough remove sag functional Roll Out/Dunham continued page 38 lar model cement because sands works easier epoxy white glues seam should tight fit allowed dry thoroughly before proceeding Trace wing outline airfoil highpoint line ball-point pen cut al outline leaving 1/16 around final finish first important step carefully sand about 1/32 tip wash out bottom side area shown plan delicate operation little required dont overdo use small razor plane shape rear airfoil portion blank high point line trailing edge keep ing flat possible use straight edge check Sand out hills valleys using sanding block main tain trailing edge thickness about 1/32 leading edge next should have bit top camber leaving enough thickness front bot tom side curved entry leading edge radius outer wing tip panels should tapered thinned keeping airfoil shape way Next trim exact out line final sand using progressively finer grit down 400 W-D wing next cut four pieces dihedral points ends carefully beveled make correct angles epoxied joints should good tight fit no gaps else disaster waiting wings double entendre Allow cure thoroughly build up glue skin break help strengthen joints fuselage V-notched accept mid-dihedral point wing centered glued place glue fillet under side along fuselage desirable forefinger reinforcement triangle cut edges streamlined glued underside wing Con form finger oval snug custom fit using sandpaper wrapped around dowel pencilStab Rudder horizontal stabilizer cut 1/16 warp-free sheet balsa sanded airfoil section Smooth remove balsa fuzz 400 W-D paper give two coats Sig Lite Coat Using metal straightedge guide part elevator along line shown plan two portions butted together fiat surface -wide Mylar pres sure-sensitive tape pressed place 1/32 ply piece serves stiffener spring guide glued underside D-T spring installed fuse lage epoxied place spring must have enough tension raise pop-up stab 450 angle 012 014 dia wire has found satisfac tory stabilizer glued fuselage slight tilt plans indi cate rudder glued stabilizer should have just hint left offset remaining rigging D-T system self-explanatory plans caution being make sure everything working smoothly proving point actually operating assembly ground before attempting fly After glider completely assembled fuselage wing should given coat sanding sealer followed two coats 50% thinned clear dope generous amount fine sanding between coats visibility likely become problem depending upon part country live light spray coat red orange day-gb dope applied underside outer tips recom mend sake weight build-up Any further decoration best satisfied using favorite design cut Japanese tissue applied between first Applying Heat-Shrink Covering Model Air planes title 32-page book prepared Dan DeLuca Edson Enterprises Print ed heavy slick paper extensively illus trated step-by-step how-to-do-it photo graphs printed 4-colors Dan first place winner 1976 Toledo Show model won vehicle de tailed discussion Pictures text begin materials required tools cover fine point ending trimming detailing have never covered heat-shrink ma terials book invaluable aid already covering materials book will upgrade versatility obtain ing stunning effects color schemes Price $595 plus 50 cents postage hand ling Edson Enterprises Inc 228 Franklin Ave Nutley NJ 07110 product review product review product review 94 Model Aviation nIgut rAview product review product review
Edition: Model Aviation - 1977/09
Page Numbers: 47, 93, 94
AS MANY OF US fondly recall modcling experiences back late 1940s names like Campus Bee Buzz OK conjure up memories delightful hours spent building flying models powered CO2 engines Compared cantankerous ignition engines flip starting diminutive next smallest Arden Atom 09 gas engines little non-combustion powerplants sheer delight Nearly issue contemporary model mags contained least scale sport competition de sign readily available inex pensive motors Such familiar names McEntee McCullough Willard EhI ing often appeared clever welltested designs Numerous kits also available ranging beginner types Kordas Powerhouse Berkeley introduction glow plug Ray Arden late 1948 subsequent development K&B 02 Infant other subminiature combustion engines signalled beginning decline interest CO2 power fondly remember Ray Arden Olathe Nats 1949 running what time seemed nearly mi croscopic engine wore tie tack can well imagine amazement of us until moment considered 09 smallest engines also recall 17-year-old boy asking ever plan manufacture sell anything small Mr Arden replied Certain ly ever market Sadly man died several years later knowing what prophet Memory can play funny tricks Im relatively sure smallest engines Ardens display smaller contemporary Cox 010 now after 30-year hiatus re sponse shrinking flying sites noise complaint abatement problems fantastic growth interest peanut-sized models second CO2 age upon us Some real old timers might want count compressed air motors age cant since wasnt fairness CO2 engine has never com pletely disappeared Bill Brown having less continuous manufac ture since Campus engines 1948 However introduction Shark Telco really marks first time nearly 30 years can walk friendly hobby shop purchase CO2 engine two recently introduced CO2 pow erplants English manufacture Telco Ticket Equipment imported Sig Shark Harden Associ ates Ltd imported Polks natural compare two new imports familiar Brown Side side immediately given impres sion Telco much larger Brown Shark larger still Such really case three nearly identical exterior dimensions weight massive mounting lugs imports create impression larger size Constructed nylon naturally much thicker alloy lugs Brown lugs Telco use two-bolt mounting Shark em ploys three-hole mount judgment three-hole has distinct advantage using washers adjust side- Continued page 93 September 1977 47 biplane subject easily modeled Flying surfaces rectangular planform fuselage flat four sides except nose center-section struts vertical making easy measure attach spite its boxy appearance Farman surprisingly good flier Outdoor flights average 30-40 seconds occasional 2-minute hops almost going out sight scratch builder likely con test flier has wide open choice someone builds flies Gee Bee Su persportster indicates top pilot same would true multi-engine planes other extreme light plane such Piper Cub places little demand pilot ability contest work element apparent pilot ability important since judges will believe him competent choice subject makes him look bad planes long tail moment slender lightweight fuselage likely possess stability smooth effortless flight worst combination would short tail fuselage small tail surfaces Gee Bee other clas sic racing planes examples type approach stall usually ends disaster Takeoff landing characteristics such highly skilled pilots can expect success Extreme opposites World War Sop withs Bristols monstrous sta bilizers afford greatest possible stabil ity Sopwith 1 Strutter has stabil izer large has never possible make three-point landing full up elevator due ground-cushion ef fect prototype aircraft same problem partially solved use barn-door flaps lower wing As mod els planes have gentle docile flight habits make real pleas ure fly particularly slow speed too scale models exhibit vicious natures recent trend toward larger models disadvantages due higher cost transportation dif ficulties has observation planes easily capable scale-like flight introduction new prop drive units lack power no longer reason build larger model available kits large sizes begin look attractive choice subject widened considerably sport-scale model can expected take twice time required sport plane full-scale type five ten times long Choosing subject has abundant information available decreases research burden thereby increases chance successful completion heavy investment construction time means selection subject should taken lightly An effort being made form na tional scale organization similar formed pattern pylon soaring other groups working AMA purpose group pro vide technical help areas such subject selection documentation construction competition rules material listings evalu ations aid team selection proc ess Interested scale modelers whether free flight control line radio control should write Bob Underwood MORE wM4i3o1Ir 00 same powerYELLOW 4 e6edpitPROPELL eB ~Taco o O90-53 54 e 4 308 Blade63 64358 er74 76 78 508 -each84 86 88 668 949697 q 64 358iO4 106858 5-6114 116 1181 9-6106 1 AC 124 3 Blade Tractort2 5 176150 5-354 6364 508 ORISH 3 Blade Pusher Bk OS 63ST JOHN INDIANA 46373 SCALE DA/p5CART ACE KITS 0 PLANSACCESSORIES REAIIMGE 4REAL JAPANESE TISSLIE-FEOPS j7~OXBAT BROWN CO-2 ENGINES MORRISON17 SPAN COMPLETE CATALOG 50s 1977 CATALOG KIT $4 25MANY HARD TO FIND ITEMS TECN 48500 MC KENZ E HWY P P InniaPIoiia VIDA OREGON 97488BOX 2498LA MESA CALIF 92041 4109 Concord Oaks Dr St Louis Mo 63128 Bob Dolly Wischer RT 1 S-221 Lapham Peak Rd Delafield WI 53018 Farman/J ohnson continued page 47 down-thrust Shark also differs use metal cylinder considerably larger di ameter nylon Telco prop nut rather bolt Telco plated tank Both powerplants uti lize charging gun fits snugly onto nipple-type fitting Early-on Telco nipple nylon recent ex amples have metal fitting charg ing gun does Shark principal mechanical difference tween three engines method speed control three use poppet valves admit gas opening piston strikes top dead center Speed proportionate far poppet dis placed gas admitted faster rpm shorter duration Brown Shark engines adjust C02 volume screwing cylinder up down whereas Telco crankshaft mounted eccentric bearing crankshaft bearing rotated knurled aluminum flange located immedi ately behind prop Raising lowering shaft corresponds remarkably ad vancing retarding spark lever old ignition engines Model As first-effort trainer CO2 power Farman ideal small compact sturdy yet being biplane has oodles wing area make its flight real istic Besides feels like making other run-of-the-mill monoplane Boxy construction straight lines plus verti cal cabane struts make easy build align Although previous models devel oped around Brown CO2 have spans 16-18 inches weigh 20-30 grams Farman Sport has larger area weight Recognizing average hobby shop does stock indoor wood indoor building techniques rather exotic modelers interested trying CO2 scale first time set out develop sturdy trainer model pleasing appearance Much de light resultant model has above-aver age flying ability Average flights outdoors have 30-40 second range several frightening near OOS thermal ones well over two minutes Construction First step purchase sheet light 1/16 3 balsa Pick sheet deal ers rack long grained flaws warps dealer stocks Contest Balsa selection will simplified hut suitable piece can found regular sheet 1/32 basswood no longer exotic item advent Rev Prod ucts basswood line wheels avail able mail Peck Polymers Wil liams Brothers vintage wheels could substituted penalty few grams Cut out two identical fuselage sides 1/16 X 1/16 balsa vertical reinforcements positioned Hot Stuff Jet mers cut noting grain direction Drill bolt holes align sides assemble September 1977 93 THE BIGIS CCOMING Send $100 1977 illustrated cata log complete line Dealers inquiry invited Andrews Aircraft Model Co Inc US Rte 1 & North St Topsfield MA 01983 8878541 Sig Bond Use triangle carpenters square check holding everything position masking tape Allow several hours resin set pull tail post together using fast glue 1/32 balsa fairing positioned formed instantglued place Sig cowl shown gear bent shape over plan attached 1/16 ply former carpet thread wrapped glued Tail surfaces cut 1/16 sheet sanded positioned fast glue Scallops can easily done sandpaper l wing straight-forward involving two identical assemblies center section cut out discarded lower wing Dihedral angle sanded using -in block under tip classic table edge Joints fast glued Cover finish wings before attaching fuse lage Japanese tissue clear dope works fine engine its hardware should installed before covering fuselage handy removable motor set-up can made epoxying nuts onto small piece plywood fast glued back firewall filler nipple mounted 1/32 ply stuck position after rolling tubing loops needed place tank proper position Use scrap balsa hold tank tight finish prototype done Floquil Caboose Red mixed clear nitrate dope Although airbrush would ideal color brushed coat covered well added almost no weight attempt use colored dope much too heavy Now cut cabanes 1/32 ply Mark exit point fuselage side pencil ball-point entry rib bottom Cut thin slots through 1/32 balsa cowl stick cabane through fas ten fast glue tissue cut wing center section top wing posi tioned fast glue checking alignment carefully lower wing installed same way 1/32 bass interplane struts installed fast glue model completed constructing 1/32 bass landing gear frame place fuselage bottom wire attached basswood allowed swing free preventing breakage still looking realistic tailskid cut basswood fast glued tail post Interplane wires monofilament fish ing line threaded through small holes previously drilled struts Tie knot end thread through both holes tighten fast glue wires should tightened enough remove sag functional Roll Out/Dunham continued page 38 lar model cement because sands works easier epoxy white glues seam should tight fit allowed dry thoroughly before proceeding Trace wing outline airfoil highpoint line ball-point pen cut al outline leaving 1/16 around final finish first important step carefully sand about 1/32 tip wash out bottom side area shown plan delicate operation little required dont overdo use small razor plane shape rear airfoil portion blank high point line trailing edge keep ing flat possible use straight edge check Sand out hills valleys using sanding block main tain trailing edge thickness about 1/32 leading edge next should have bit top camber leaving enough thickness front bot tom side curved entry leading edge radius outer wing tip panels should tapered thinned keeping airfoil shape way Next trim exact out line final sand using progressively finer grit down 400 W-D wing next cut four pieces dihedral points ends carefully beveled make correct angles epoxied joints should good tight fit no gaps else disaster waiting wings double entendre Allow cure thoroughly build up glue skin break help strengthen joints fuselage V-notched accept mid-dihedral point wing centered glued place glue fillet under side along fuselage desirable forefinger reinforcement triangle cut edges streamlined glued underside wing Con form finger oval snug custom fit using sandpaper wrapped around dowel pencilStab Rudder horizontal stabilizer cut 1/16 warp-free sheet balsa sanded airfoil section Smooth remove balsa fuzz 400 W-D paper give two coats Sig Lite Coat Using metal straightedge guide part elevator along line shown plan two portions butted together fiat surface -wide Mylar pres sure-sensitive tape pressed place 1/32 ply piece serves stiffener spring guide glued underside D-T spring installed fuse lage epoxied place spring must have enough tension raise pop-up stab 450 angle 012 014 dia wire has found satisfac tory stabilizer glued fuselage slight tilt plans indi cate rudder glued stabilizer should have just hint left offset remaining rigging D-T system self-explanatory plans caution being make sure everything working smoothly proving point actually operating assembly ground before attempting fly After glider completely assembled fuselage wing should given coat sanding sealer followed two coats 50% thinned clear dope generous amount fine sanding between coats visibility likely become problem depending upon part country live light spray coat red orange day-gb dope applied underside outer tips recom mend sake weight build-up Any further decoration best satisfied using favorite design cut Japanese tissue applied between first Applying Heat-Shrink Covering Model Air planes title 32-page book prepared Dan DeLuca Edson Enterprises Print ed heavy slick paper extensively illus trated step-by-step how-to-do-it photo graphs printed 4-colors Dan first place winner 1976 Toledo Show model won vehicle de tailed discussion Pictures text begin materials required tools cover fine point ending trimming detailing have never covered heat-shrink ma terials book invaluable aid already covering materials book will upgrade versatility obtain ing stunning effects color schemes Price $595 plus 50 cents postage hand ling Edson Enterprises Inc 228 Franklin Ave Nutley NJ 07110 product review product review product review 94 Model Aviation nIgut rAview product review product review