/2A Astrostar Top Our author holas up pair OT Astrostars cover aii categones right hand weighs 7 oz used Cat 1 2 whereas other weighs 62 oz used Cat 3 exclusively Above DT fuse mounts side fuselage authors name address printed pylon case model lost prop held socket-head screw available Ace RC ensure positive retention Tee Dee engine model design generally considered successful proves itself contest cir cuit has design recently received distinguished honor being named NFFS small gas model year 1988 ETerry Thorkildsen December 1988 75 Photos author Ralph Prey Left The stab under construction Terry uses lead weights hold leading trailing edges place until things glued together Right geodetic structure wing accounts its excellent strength foreground fuselage sides prior completion Left The spar notches cut ribs lightly sanded still stacked together ensure will uniform Right diagonal ribs placed position glued CyA notches spars cut tool shown right end wing made piece 1A x % spruce medium-grit sandpaper glued edge used sand notches appropriate depth THIS AIRCRAFT designed 1985 based earlier model called Jupiter Jupiter fairly successful having placed 4th 1984 Reno Nats 3rd Open 1984 US Free Flight Champs Taft Jupiter nice lines elliptical tips didnt have consistency wanted starting point refined de sign came up Astrostar Astrostar went constant-chord wing 317 sq placed rudder rear used smaller stabilizer As evident plans construc tion quite straightforward model can built novice good chances favorable results size model selected based fact flying Taft under Cat 1 conditions 5-mm maxes Smaller models can get pretty tough see get specked Out booming thermal However model has suc cessfully flown categories will typ ically weigh 65 70 oz no fuel feel size model works well categories will handle full power hot TeeDee no wasted gyra tions change needed Cat 3 flying build lighter real light will weigh 62 oz weight held Cat 3 record 1987 achieve weight takes careful selection components Dont give anything free ride simple thing like engine mount can cost 025 05 oz always back-mount TeeDees Careful selection wood finishes glues required come lighter weight can built 65- 70-oz range quite easily help keep weight down use Mic afilm covering exclusively has added benefit being fuel proof puncture re sistant major disadvantage Mic afilm doesnt have much torsional rigid ity tissue dope problem elim inated Union Jack geodetic construc tion offers strong warp-free struc ture overall rigidity retained real benefit Micafilm early morn ing dampness doesnt loosen covering can rack up maxes thick morning air Behaved covering really advantage one-flight unlimitedduration dawn events some west coast contests feature airfoil used model similar Ramrods thinner isnt draggy climb flat-bottomed section 93% thick its high point 35% yields faster climb get undercambered wing light ly loaded model like dont give up much glide stab sec tion thinned 73% necessary avoid overpowering wing high speeds going over top Turbulator spars offer both rigidity consist ent airfoil critical front section effective model uses carbon fiber reinforce center dihedral break also rudder stiffness wings built flat except small amount washin about Y32 right main panel No washout used tips dont recommend fast moving model prefer use washout Rubber Nordic models center gravity CG positioned 73-74% fuel pylon located last after model completely assembled achieve pylon glued bottom fuselage produces exceptionally strong joint gives extra rigidity pylon Re cently have adding small piece 1A6-sq spruce front pylon avoid nicks stress cracks seem develop time fuselage uses %2-sq balsa stringers four corners full length pro vide exceptional strength-to-weight ra tio technique can build fu selage no bulkheads usually add tail front stab half near dethermalizer DT tube pro vide necessary strength may have force tight fuse fuselage doped nitrate followed couple coats thinned clear K&B Super Poxy add aniline dye nitrate dope viv id translucent coloring effect use Super Poxy Micafilm model wont pick up weight becomes con test veteran Astrostar uses rear rudder pro vide consistent power pattern rudder location keying stab critical model definitely seems groove better rear rudder some models have undesired tendency weathervane height size rud der determine Use 35% wing area rudder configuration shown avoids problem Keying wing will always mounted same position very im 76 Model Aviation AASA BALSA BED - FIAA \ WING PLAN TOP VIEW LIABALSA SHEET _iZLrn~mmrzr1Th_i K lAIR7jr SlREAFAL~/lAB SO BALSA BBEABlAB IAA BALSACHARS SPARSPIABRISA BALSA MEAl MEAl SRAB HARSA RALSA MEAlTRAILIPA EASt 5* WINS BIBS ABE RAFT BALSA SABET SAAl-HASVI HAHA DIHEDRAL DETAIL WIND RIB PATTERNSIA BASS SHEER CABS ARARRI P505 SO BALSA HRBAABRASITS BALSA SABER STAB BIBS ARE STAB LIZERTIe BALSA SARAH IA RAFT BALBA SHEETlAB IBES ASAFTI zIzIIx SR BARS BALBA STABILIZER DID PATTERNS HABAlA SARA BALSA RAILABIR LABIA AR OILS SIB AlA BASIS WIRECUR ASHSTAB ABERAS SANDESIGNED BY TERRY TRORBIWSEN TRACING NT SE DEMARCO ALL RANBTB DEBARRED portant consistent flying use dowels center dihedral break drag-free key ing also offer advantage pop ping out slot hit hard obstruc tion front stab also keyed prevent flat spin stab gets cocked model DTs Astrostars CG location 73-74% wing chord dry works out well models stab size As seasoned fliers know tail-heavy models go over top nose-heavy models too loopy nose-heavy effect can appear loop side hard distinguish some times Knowing affects CG location can provide useful means fine tuning tween power glide cant accom plished incidence corrections alone know variable-incidence-tailplanes VIT can accomplish same thing like simplicity no gadgets makes straightforward model anyone can have success Personally fly such variety events like model no devices trip up heat battle least expected properly trimmed Astrostar will roll out top power run no loss altitude anyway fly Astrostar right-right can trimmed right-left desire prefer right-right pattern never fight model wants glide left should check amount washin make sure isnt forcing model glide left model uses no downthrust slight amount left thrust sometimes added eliminate initial bank right Thrust adjustments lose effec tiveness latter power stages climb model picks up speed Astrostar has scaled up other sizes 600 sq version used A/B Gas K&B 325 35 840 sq size being built C/D version has flown over longer time period result has wins its credit 1/2A event contest attend usually fly first imperative flying surfaces warp-free eliminate trim changes dif ferences speed cant overemphasize importance honking TeeDee se lect best order Kus tom Kraftsmanship fuel 50-70% nitro know Astrostar will reward performance match Construction best performance important build Astrostar between 62 72 ounces achieve take care selecting wood covering materials Just important building strong light model build free warps build models special plank has trued up pro vide flat surface Building model out warps will result consistent flight characteristics dont change function speed Wing panels built flat except right main panel should have Continued page 78 Left DT wire back stab bent S pattern attaches trailing edge has piece silk CyAed over strong durable bond Right Terry uses Dacron OT line because doesnt stretch way monofilament fishing line can Do&t use card stock piece matchbook stab shim since thickness will vary humidity Use balsa-capped thin ply instead December 1988 77 ISA BALSA RIBS /1 Cu 0 0 0 0 0 0 Cu U Cu 0 U about %2 washin outer dihedral break use carbon fiber center dihe dral breaks dont have can substitute /32 plywood Use light /16 sheet balsa preferably C-grain possible ribs Use medium balsa lead ing edges LE trailing edges TE main spar top spars should hard wood used wing should straight true geodetic ribs should put place prior adding top spars can notch exact location spars can done using piece sandpaper glued edge / x %-in piece spruce about 10 long tool can used sand down notches correct depth straightedge X-Acto knife can also used stabilizer built similar wing built lighter avoid having tailheavy model Fuselage Select medium medium light /16 sheet balsa % stringers corn ers added sides first Glue bulkhead DT tube position along front stab Temporar ily glue bulkhead firewall location help alignment next step Lay piece top cut slightly over size down flat surface Put thick Hot Stuff Super T top side stringers carefully place top top sheet Glue bottom similar man ner type construction will give strong straight fuselage pylon added until model completed get correct CG location 73-74% no fuel pylon glued bottom provide strong joint no bulkheads Covering use Micafllm since offers weight advantage fuel proof very puncture resistant use Micafilm must first apply adhesive frame work use thinned Balsarite ribs spars 3M 77 spray adhesive LE TE 3M 77 offers advantage staying tacky long enough place Micafilm position before iron down edges Cover bottom side first top por tion covering should overlap bot tom about / Use Balsarite thin Hot Stuff seal overlap joint Use iron tighten covering dont want bother Micafilm Japanese tissue will work just fine Use three four coats thinned ni trate dope followed two coats fuel proofer butyrate dope cover tissue Flying Let finishes cure week take out warps might have developed Make sure wing keyed Continued page 178 SAVE YOUR FIELD SNUF-LER muffler low cost easy Install light weight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields 3 10 decibels quieter stock muffler No power loss possible 300-500 RPM increase improves engine idle s better fuel economy Easily attached 25-108 stock mufflers No special adapters required Heat corrosion resistant Black E coat finish Weighs 35 ozs Fits ASP BRAT ENYA POX HP IRVINE K&B OS MAX ROYAL SUPER TIGRE mufflers availoDle ot hOEOy shop ORDER DIRECT immediate shipment checis MO Visa MC COD accepted Add S25O UPSc $200 COD 6% sales ras Calif resdenr SEND 25% STAMP FOR AnDITTONAL IMPO AND J TC CAPALOG 78 Model Aviation r SNUFLER MUFFLER Par Pe,d,g L 2495 CAT NO 800 date 2/24/47 accompanying three-view taken plans Goldberg fluence quite evident early ignitionpowered prototype soon-to-be-famous Zeek series As can see model quite small 277 sq wing area reported weight little over 19 oz Being designed around Ban tam Arden 19 engines models ob viously quite frisky under power ignition system mounted flat piece 3/16-in ply wood bracketed off back firewall firewall held front fuselage pair bicycle spokes anchored inside fuselage about level engine thrust line ignition flight timer mounted top fuselage just aft pylon leads soldered anchored ends bicycle spokes solder lugs clamped between spokes screw-nuts firewall used make connections thereto Dethermalizer sys tems incorporated well usually actuated Hillcrest modified Austin pneumatic timers Viable full-sized plans can made three-view sketch accompanying article enlarging sketch appropriate dimen sions Note different degree enlargement will required wing stab ribs since drawn different scale Copier ma chines have enlarging capabilities can han dle chore best bet take proj ect graphics reproduction shop special izes architectural engineering services Look Yellow Pages under head ings like Copying Duplicating Service Photo Copying Other pertinent infor mation required construct original Zeek follows wing incorporates center spars built same manner Zipper Sailplane subsequent A/B Zeek eventually kitted leading trailing edgesplus contoured tip partsare pinned down plan ribs loosely assembled spars midair running spars through before such stack fitted outline its appropriate panel section plans false ribs added last bill materials wing parts consists following center section ribs /5-in sheet balsa including two false ribs ribs re maining panels cut /6 sheet lead ing edge 3/4 x two front spars x % except tips re duced / x rear spar A-in sq TE x Y -in tapered stock contoured tip parts A-in sheet stabilizer spars bottom its construction bit easier ribs /16 sheet LE again /I6 x per wing front spar Ax rear sq Contoured outline parts /l6 sheet Finally vertical fin cut sheet complete stab unit fuselage construction also seems have simplified facsimile unique Zipper/Sailplane fuselage configuration three 3/6-in-sq side longerons pinned place plans Y16-sq uprights ce mented across tops longerons station sides removed plans turn spaced apart appropri ate lengths Y16-sq strips until fuselage box completed Also rectangular-shaped sta tion has its center filled appropriately sized piece sheet stock surely makes sturdy fuselage carry weight ig nition paraphernalia sheeted areas up front use A-in stock Finally pylon A-in sheet wing platform A-in material Should design strike fancy should now know enough about model build original 1947 Zeek NosGas Igni tion event wake contest successes 277sq -in ignition-engine-powered Zeek additional sizes built Lew others 435 sq 29 engines 575 sq Bunch 45s one-of-a-kind colossus 1500 sq powered McCoy 60 As far known versions ignitionpowered Zeeks incorporated undercambered air foils confused flatbottom-airfoil versions similar sizes came later Should readers retain orig inal plans versions hoped will brought light again soon possible enjoyed Zeek lovers thanks Carl Stokes Lew Mahieu himself getting story kicked off Theres come Well its time sign off again want give Good night AMA Nats Commit tee wherever might hiding before parting cry See ya downwind Astrostar/Thorki Idsen Continued page 78 First hand glide model Adjust nec essary incidence until have nice floating glide Double check CG loca tion major corrections incidence re quired Use baby pacifier pressure fuel tank consistent engine run set timer 2-3 seconds model should climb steeply slight right turn Correct adverse turn tendencies rudder tab trailing edge stock glued rear rudder Slowly lengthen engine run un til up full limit Properly trimmed model will make couple turns 12 seconds followed smooth transition floating glide Enjoy flying Astrostar Im sure will bring much pleasure Astrostars have given Product sources Bradley Model Products 1337 Pine Sap Ct Orlando FL 32825 Jacks Models 4036 W 173rd P1 Torrance CA 90504 Kustom Kraftsmanship Box 3010 Fallbrook CA 92028 MRL 25108 Marguerite Pky B-160 Mis sion Viejo CA 92692 CLWC General/Johnson Continued page 85 pleasant food good stopover Gander Newfoundland enjoyable Gan der flight crew changed con servative group wed already taken over airplane found difficult regain control landed International Airport Moscow went through immigra tion customs immigration officer kept half visa looked over closely waved through Same deal customsthey X-rayed things machine would accommodate aero club awaited us number buses cars somehow man aged transport fliers boxes another airport hours drive across Moscow waitingthen knowing sure whether boxes loaded fi nal trek Kiev Fortunately models made us took two trips vans get everyone everything hotel another hour away Although officials press housed hotel team quartered bungalows located behind hotel Stock Immodtote ShIpment ZE1EOAH 0-6237 cu In$26995 New Osedre 40 CDI 13bearlsg wIth eprlng suns $15995 Reg Quedn 40612296 wIth Brleghella flywheel 16 Reg Osedre 40 Pow Assenbly Only polnte $6895 OuAORAoZENOAH REPAIR $10SOIpIss pens JIw Mess ERCOUPEPLANS $2395 FULL-KIT $23995 Jiw Meeser TOMAHAWKPLANS $2396 FULL-KIT $23996 JIm Messer J2 KITTENPLANS $2996 FIJLLKIT $21995 9112 KADET SENIOR KIT $4796 Iseve $2000 9112 KADET SENIORITA KIT $3496 Isene $1500 ZENOAN 1222 $15296 ZENOAN 025 $16996 FLOATS 40-114 cools osree $2195 cswplete hit $4795 1$ WWI WHEELS 6 P1K SpIng Sterte 6 PLANS SUPER STEARMAN lItIOsdfreyI $2595 1/2 TAYLORCRAFT 113 CUB NeIItz $3995 VOLKIPLANE 113 Chlsken CheIeI $2295 Servse H402 42 $1295 World 616 tsr roe wsdels $4496 Prope eli sines iER TOP FLITS OYNATHRUST 20% OFF 118 Quedre FUELTANKSlIon $75533 $595 FIBERGLASS ARROW SHAFTS 516 n32 long 68061195 3414oo Sernine $200 psstsee 551 Chenk 5 n ts JIM MESSERS QUALITY MODEL PRODUCTS VaUy Wow Dr Box 43 AIIOgOR NY 14706 h 178 Model Aviation W rt i tsi z ~ijiqii b-a dillilil uw ce lightweight materials PO Box 16621 Dept M Irvine CA 92714 714 250-1107 CARBON FIBER LAMINATES Aerospace Composite Products offers variety rigid carbon fiber/epoxy sheets add stiffness almost material- fiberglass foam bal sawood laminates can used reinforce foam wings leading trailing edges wing spars Carbon Fiber bonds easily slow setting cyanoacrylates 5-minute epoxies laminate can stripped narrower widths CL-i 007 thick 1x48-$500 1x72-$700 CL-2 014 thick 1x48-$800 1x72-$1100 Send SASE information additional sizes products Add $300 shipping handling calif residents add 6% tax Overseas orders add 15%-Order cOD send check money order to
Edition: Model Aviation - 1988/12
Page Numbers: 75, 76, 77, 78, 178
/2A Astrostar Top Our author holas up pair OT Astrostars cover aii categones right hand weighs 7 oz used Cat 1 2 whereas other weighs 62 oz used Cat 3 exclusively Above DT fuse mounts side fuselage authors name address printed pylon case model lost prop held socket-head screw available Ace RC ensure positive retention Tee Dee engine model design generally considered successful proves itself contest cir cuit has design recently received distinguished honor being named NFFS small gas model year 1988 ETerry Thorkildsen December 1988 75 Photos author Ralph Prey Left The stab under construction Terry uses lead weights hold leading trailing edges place until things glued together Right geodetic structure wing accounts its excellent strength foreground fuselage sides prior completion Left The spar notches cut ribs lightly sanded still stacked together ensure will uniform Right diagonal ribs placed position glued CyA notches spars cut tool shown right end wing made piece 1A x % spruce medium-grit sandpaper glued edge used sand notches appropriate depth THIS AIRCRAFT designed 1985 based earlier model called Jupiter Jupiter fairly successful having placed 4th 1984 Reno Nats 3rd Open 1984 US Free Flight Champs Taft Jupiter nice lines elliptical tips didnt have consistency wanted starting point refined de sign came up Astrostar Astrostar went constant-chord wing 317 sq placed rudder rear used smaller stabilizer As evident plans construc tion quite straightforward model can built novice good chances favorable results size model selected based fact flying Taft under Cat 1 conditions 5-mm maxes Smaller models can get pretty tough see get specked Out booming thermal However model has suc cessfully flown categories will typ ically weigh 65 70 oz no fuel feel size model works well categories will handle full power hot TeeDee no wasted gyra tions change needed Cat 3 flying build lighter real light will weigh 62 oz weight held Cat 3 record 1987 achieve weight takes careful selection components Dont give anything free ride simple thing like engine mount can cost 025 05 oz always back-mount TeeDees Careful selection wood finishes glues required come lighter weight can built 65- 70-oz range quite easily help keep weight down use Mic afilm covering exclusively has added benefit being fuel proof puncture re sistant major disadvantage Mic afilm doesnt have much torsional rigid ity tissue dope problem elim inated Union Jack geodetic construc tion offers strong warp-free struc ture overall rigidity retained real benefit Micafilm early morn ing dampness doesnt loosen covering can rack up maxes thick morning air Behaved covering really advantage one-flight unlimitedduration dawn events some west coast contests feature airfoil used model similar Ramrods thinner isnt draggy climb flat-bottomed section 93% thick its high point 35% yields faster climb get undercambered wing light ly loaded model like dont give up much glide stab sec tion thinned 73% necessary avoid overpowering wing high speeds going over top Turbulator spars offer both rigidity consist ent airfoil critical front section effective model uses carbon fiber reinforce center dihedral break also rudder stiffness wings built flat except small amount washin about Y32 right main panel No washout used tips dont recommend fast moving model prefer use washout Rubber Nordic models center gravity CG positioned 73-74% fuel pylon located last after model completely assembled achieve pylon glued bottom fuselage produces exceptionally strong joint gives extra rigidity pylon Re cently have adding small piece 1A6-sq spruce front pylon avoid nicks stress cracks seem develop time fuselage uses %2-sq balsa stringers four corners full length pro vide exceptional strength-to-weight ra tio technique can build fu selage no bulkheads usually add tail front stab half near dethermalizer DT tube pro vide necessary strength may have force tight fuse fuselage doped nitrate followed couple coats thinned clear K&B Super Poxy add aniline dye nitrate dope viv id translucent coloring effect use Super Poxy Micafilm model wont pick up weight becomes con test veteran Astrostar uses rear rudder pro vide consistent power pattern rudder location keying stab critical model definitely seems groove better rear rudder some models have undesired tendency weathervane height size rud der determine Use 35% wing area rudder configuration shown avoids problem Keying wing will always mounted same position very im 76 Model Aviation AASA BALSA BED - FIAA \ WING PLAN TOP VIEW LIABALSA SHEET _iZLrn~mmrzr1Th_i K lAIR7jr SlREAFAL~/lAB SO BALSA BBEABlAB IAA BALSACHARS SPARSPIABRISA BALSA MEAl MEAl SRAB HARSA RALSA MEAlTRAILIPA EASt 5* WINS BIBS ABE RAFT BALSA SABET SAAl-HASVI HAHA DIHEDRAL DETAIL WIND RIB PATTERNSIA BASS SHEER CABS ARARRI P505 SO BALSA HRBAABRASITS BALSA SABER STAB BIBS ARE STAB LIZERTIe BALSA SARAH IA RAFT BALBA SHEETlAB IBES ASAFTI zIzIIx SR BARS BALBA STABILIZER DID PATTERNS HABAlA SARA BALSA RAILABIR LABIA AR OILS SIB AlA BASIS WIRECUR ASHSTAB ABERAS SANDESIGNED BY TERRY TRORBIWSEN TRACING NT SE DEMARCO ALL RANBTB DEBARRED portant consistent flying use dowels center dihedral break drag-free key ing also offer advantage pop ping out slot hit hard obstruc tion front stab also keyed prevent flat spin stab gets cocked model DTs Astrostars CG location 73-74% wing chord dry works out well models stab size As seasoned fliers know tail-heavy models go over top nose-heavy models too loopy nose-heavy effect can appear loop side hard distinguish some times Knowing affects CG location can provide useful means fine tuning tween power glide cant accom plished incidence corrections alone know variable-incidence-tailplanes VIT can accomplish same thing like simplicity no gadgets makes straightforward model anyone can have success Personally fly such variety events like model no devices trip up heat battle least expected properly trimmed Astrostar will roll out top power run no loss altitude anyway fly Astrostar right-right can trimmed right-left desire prefer right-right pattern never fight model wants glide left should check amount washin make sure isnt forcing model glide left model uses no downthrust slight amount left thrust sometimes added eliminate initial bank right Thrust adjustments lose effec tiveness latter power stages climb model picks up speed Astrostar has scaled up other sizes 600 sq version used A/B Gas K&B 325 35 840 sq size being built C/D version has flown over longer time period result has wins its credit 1/2A event contest attend usually fly first imperative flying surfaces warp-free eliminate trim changes dif ferences speed cant overemphasize importance honking TeeDee se lect best order Kus tom Kraftsmanship fuel 50-70% nitro know Astrostar will reward performance match Construction best performance important build Astrostar between 62 72 ounces achieve take care selecting wood covering materials Just important building strong light model build free warps build models special plank has trued up pro vide flat surface Building model out warps will result consistent flight characteristics dont change function speed Wing panels built flat except right main panel should have Continued page 78 Left DT wire back stab bent S pattern attaches trailing edge has piece silk CyAed over strong durable bond Right Terry uses Dacron OT line because doesnt stretch way monofilament fishing line can Do&t use card stock piece matchbook stab shim since thickness will vary humidity Use balsa-capped thin ply instead December 1988 77 ISA BALSA RIBS /1 Cu 0 0 0 0 0 0 Cu U Cu 0 U about %2 washin outer dihedral break use carbon fiber center dihe dral breaks dont have can substitute /32 plywood Use light /16 sheet balsa preferably C-grain possible ribs Use medium balsa lead ing edges LE trailing edges TE main spar top spars should hard wood used wing should straight true geodetic ribs should put place prior adding top spars can notch exact location spars can done using piece sandpaper glued edge / x %-in piece spruce about 10 long tool can used sand down notches correct depth straightedge X-Acto knife can also used stabilizer built similar wing built lighter avoid having tailheavy model Fuselage Select medium medium light /16 sheet balsa % stringers corn ers added sides first Glue bulkhead DT tube position along front stab Temporar ily glue bulkhead firewall location help alignment next step Lay piece top cut slightly over size down flat surface Put thick Hot Stuff Super T top side stringers carefully place top top sheet Glue bottom similar man ner type construction will give strong straight fuselage pylon added until model completed get correct CG location 73-74% no fuel pylon glued bottom provide strong joint no bulkheads Covering use Micafllm since offers weight advantage fuel proof very puncture resistant use Micafilm must first apply adhesive frame work use thinned Balsarite ribs spars 3M 77 spray adhesive LE TE 3M 77 offers advantage staying tacky long enough place Micafilm position before iron down edges Cover bottom side first top por tion covering should overlap bot tom about / Use Balsarite thin Hot Stuff seal overlap joint Use iron tighten covering dont want bother Micafilm Japanese tissue will work just fine Use three four coats thinned ni trate dope followed two coats fuel proofer butyrate dope cover tissue Flying Let finishes cure week take out warps might have developed Make sure wing keyed Continued page 178 SAVE YOUR FIELD SNUF-LER muffler low cost easy Install light weight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields 3 10 decibels quieter stock muffler No power loss possible 300-500 RPM increase improves engine idle s better fuel economy Easily attached 25-108 stock mufflers No special adapters required Heat corrosion resistant Black E coat finish Weighs 35 ozs Fits ASP BRAT ENYA POX HP IRVINE K&B OS MAX ROYAL SUPER TIGRE mufflers availoDle ot hOEOy shop ORDER DIRECT immediate shipment checis MO Visa MC COD accepted Add S25O UPSc $200 COD 6% sales ras Calif resdenr SEND 25% STAMP FOR AnDITTONAL IMPO AND J TC CAPALOG 78 Model Aviation r SNUFLER MUFFLER Par Pe,d,g L 2495 CAT NO 800 date 2/24/47 accompanying three-view taken plans Goldberg fluence quite evident early ignitionpowered prototype soon-to-be-famous Zeek series As can see model quite small 277 sq wing area reported weight little over 19 oz Being designed around Ban tam Arden 19 engines models ob viously quite frisky under power ignition system mounted flat piece 3/16-in ply wood bracketed off back firewall firewall held front fuselage pair bicycle spokes anchored inside fuselage about level engine thrust line ignition flight timer mounted top fuselage just aft pylon leads soldered anchored ends bicycle spokes solder lugs clamped between spokes screw-nuts firewall used make connections thereto Dethermalizer sys tems incorporated well usually actuated Hillcrest modified Austin pneumatic timers Viable full-sized plans can made three-view sketch accompanying article enlarging sketch appropriate dimen sions Note different degree enlargement will required wing stab ribs since drawn different scale Copier ma chines have enlarging capabilities can han dle chore best bet take proj ect graphics reproduction shop special izes architectural engineering services Look Yellow Pages under head ings like Copying Duplicating Service Photo Copying Other pertinent infor mation required construct original Zeek follows wing incorporates center spars built same manner Zipper Sailplane subsequent A/B Zeek eventually kitted leading trailing edgesplus contoured tip partsare pinned down plan ribs loosely assembled spars midair running spars through before such stack fitted outline its appropriate panel section plans false ribs added last bill materials wing parts consists following center section ribs /5-in sheet balsa including two false ribs ribs re maining panels cut /6 sheet lead ing edge 3/4 x two front spars x % except tips re duced / x rear spar A-in sq TE x Y -in tapered stock contoured tip parts A-in sheet stabilizer spars bottom its construction bit easier ribs /16 sheet LE again /I6 x per wing front spar Ax rear sq Contoured outline parts /l6 sheet Finally vertical fin cut sheet complete stab unit fuselage construction also seems have simplified facsimile unique Zipper/Sailplane fuselage configuration three 3/6-in-sq side longerons pinned place plans Y16-sq uprights ce mented across tops longerons station sides removed plans turn spaced apart appropri ate lengths Y16-sq strips until fuselage box completed Also rectangular-shaped sta tion has its center filled appropriately sized piece sheet stock surely makes sturdy fuselage carry weight ig nition paraphernalia sheeted areas up front use A-in stock Finally pylon A-in sheet wing platform A-in material Should design strike fancy should now know enough about model build original 1947 Zeek NosGas Igni tion event wake contest successes 277sq -in ignition-engine-powered Zeek additional sizes built Lew others 435 sq 29 engines 575 sq Bunch 45s one-of-a-kind colossus 1500 sq powered McCoy 60 As far known versions ignitionpowered Zeeks incorporated undercambered air foils confused flatbottom-airfoil versions similar sizes came later Should readers retain orig inal plans versions hoped will brought light again soon possible enjoyed Zeek lovers thanks Carl Stokes Lew Mahieu himself getting story kicked off Theres come Well its time sign off again want give Good night AMA Nats Commit tee wherever might hiding before parting cry See ya downwind Astrostar/Thorki Idsen Continued page 78 First hand glide model Adjust nec essary incidence until have nice floating glide Double check CG loca tion major corrections incidence re quired Use baby pacifier pressure fuel tank consistent engine run set timer 2-3 seconds model should climb steeply slight right turn Correct adverse turn tendencies rudder tab trailing edge stock glued rear rudder Slowly lengthen engine run un til up full limit Properly trimmed model will make couple turns 12 seconds followed smooth transition floating glide Enjoy flying Astrostar Im sure will bring much pleasure Astrostars have given Product sources Bradley Model Products 1337 Pine Sap Ct Orlando FL 32825 Jacks Models 4036 W 173rd P1 Torrance CA 90504 Kustom Kraftsmanship Box 3010 Fallbrook CA 92028 MRL 25108 Marguerite Pky B-160 Mis sion Viejo CA 92692 CLWC General/Johnson Continued page 85 pleasant food good stopover Gander Newfoundland enjoyable Gan der flight crew changed con servative group wed already taken over airplane found difficult regain control landed International Airport Moscow went through immigra tion customs immigration officer kept half visa looked over closely waved through Same deal customsthey X-rayed things machine would accommodate aero club awaited us number buses cars somehow man aged transport fliers boxes another airport hours drive across Moscow waitingthen knowing sure whether boxes loaded fi nal trek Kiev Fortunately models made us took two trips vans get everyone everything hotel another hour away Although officials press housed hotel team quartered bungalows located behind hotel Stock Immodtote ShIpment ZE1EOAH 0-6237 cu In$26995 New Osedre 40 CDI 13bearlsg wIth eprlng suns $15995 Reg Quedn 40612296 wIth Brleghella flywheel 16 Reg Osedre 40 Pow Assenbly Only polnte $6895 OuAORAoZENOAH REPAIR $10SOIpIss pens JIw Mess ERCOUPEPLANS $2395 FULL-KIT $23995 Jiw Meeser TOMAHAWKPLANS $2396 FULL-KIT $23996 JIm Messer J2 KITTENPLANS $2996 FIJLLKIT $21995 9112 KADET SENIOR KIT $4796 Iseve $2000 9112 KADET SENIORITA KIT $3496 Isene $1500 ZENOAN 1222 $15296 ZENOAN 025 $16996 FLOATS 40-114 cools osree $2195 cswplete hit $4795 1$ WWI WHEELS 6 P1K SpIng Sterte 6 PLANS SUPER STEARMAN lItIOsdfreyI $2595 1/2 TAYLORCRAFT 113 CUB NeIItz $3995 VOLKIPLANE 113 Chlsken CheIeI $2295 Servse H402 42 $1295 World 616 tsr roe wsdels $4496 Prope eli sines iER TOP FLITS OYNATHRUST 20% OFF 118 Quedre FUELTANKSlIon $75533 $595 FIBERGLASS ARROW SHAFTS 516 n32 long 68061195 3414oo Sernine $200 psstsee 551 Chenk 5 n ts JIM MESSERS QUALITY MODEL PRODUCTS VaUy Wow Dr Box 43 AIIOgOR NY 14706 h 178 Model Aviation W rt i tsi z ~ijiqii b-a dillilil uw ce lightweight materials PO Box 16621 Dept M Irvine CA 92714 714 250-1107 CARBON FIBER LAMINATES Aerospace Composite Products offers variety rigid carbon fiber/epoxy sheets add stiffness almost material- fiberglass foam bal sawood laminates can used reinforce foam wings leading trailing edges wing spars Carbon Fiber bonds easily slow setting cyanoacrylates 5-minute epoxies laminate can stripped narrower widths CL-i 007 thick 1x48-$500 1x72-$700 CL-2 014 thick 1x48-$800 1x72-$1100 Send SASE information additional sizes products Add $300 shipping handling calif residents add 6% tax Overseas orders add 15%-Order cOD send check money order to
Edition: Model Aviation - 1988/12
Page Numbers: 75, 76, 77, 78, 178
/2A Astrostar Top Our author holas up pair OT Astrostars cover aii categones right hand weighs 7 oz used Cat 1 2 whereas other weighs 62 oz used Cat 3 exclusively Above DT fuse mounts side fuselage authors name address printed pylon case model lost prop held socket-head screw available Ace RC ensure positive retention Tee Dee engine model design generally considered successful proves itself contest cir cuit has design recently received distinguished honor being named NFFS small gas model year 1988 ETerry Thorkildsen December 1988 75 Photos author Ralph Prey Left The stab under construction Terry uses lead weights hold leading trailing edges place until things glued together Right geodetic structure wing accounts its excellent strength foreground fuselage sides prior completion Left The spar notches cut ribs lightly sanded still stacked together ensure will uniform Right diagonal ribs placed position glued CyA notches spars cut tool shown right end wing made piece 1A x % spruce medium-grit sandpaper glued edge used sand notches appropriate depth THIS AIRCRAFT designed 1985 based earlier model called Jupiter Jupiter fairly successful having placed 4th 1984 Reno Nats 3rd Open 1984 US Free Flight Champs Taft Jupiter nice lines elliptical tips didnt have consistency wanted starting point refined de sign came up Astrostar Astrostar went constant-chord wing 317 sq placed rudder rear used smaller stabilizer As evident plans construc tion quite straightforward model can built novice good chances favorable results size model selected based fact flying Taft under Cat 1 conditions 5-mm maxes Smaller models can get pretty tough see get specked Out booming thermal However model has suc cessfully flown categories will typ ically weigh 65 70 oz no fuel feel size model works well categories will handle full power hot TeeDee no wasted gyra tions change needed Cat 3 flying build lighter real light will weigh 62 oz weight held Cat 3 record 1987 achieve weight takes careful selection components Dont give anything free ride simple thing like engine mount can cost 025 05 oz always back-mount TeeDees Careful selection wood finishes glues required come lighter weight can built 65- 70-oz range quite easily help keep weight down use Mic afilm covering exclusively has added benefit being fuel proof puncture re sistant major disadvantage Mic afilm doesnt have much torsional rigid ity tissue dope problem elim inated Union Jack geodetic construc tion offers strong warp-free struc ture overall rigidity retained real benefit Micafilm early morn ing dampness doesnt loosen covering can rack up maxes thick morning air Behaved covering really advantage one-flight unlimitedduration dawn events some west coast contests feature airfoil used model similar Ramrods thinner isnt draggy climb flat-bottomed section 93% thick its high point 35% yields faster climb get undercambered wing light ly loaded model like dont give up much glide stab sec tion thinned 73% necessary avoid overpowering wing high speeds going over top Turbulator spars offer both rigidity consist ent airfoil critical front section effective model uses carbon fiber reinforce center dihedral break also rudder stiffness wings built flat except small amount washin about Y32 right main panel No washout used tips dont recommend fast moving model prefer use washout Rubber Nordic models center gravity CG positioned 73-74% fuel pylon located last after model completely assembled achieve pylon glued bottom fuselage produces exceptionally strong joint gives extra rigidity pylon Re cently have adding small piece 1A6-sq spruce front pylon avoid nicks stress cracks seem develop time fuselage uses %2-sq balsa stringers four corners full length pro vide exceptional strength-to-weight ra tio technique can build fu selage no bulkheads usually add tail front stab half near dethermalizer DT tube pro vide necessary strength may have force tight fuse fuselage doped nitrate followed couple coats thinned clear K&B Super Poxy add aniline dye nitrate dope viv id translucent coloring effect use Super Poxy Micafilm model wont pick up weight becomes con test veteran Astrostar uses rear rudder pro vide consistent power pattern rudder location keying stab critical model definitely seems groove better rear rudder some models have undesired tendency weathervane height size rud der determine Use 35% wing area rudder configuration shown avoids problem Keying wing will always mounted same position very im 76 Model Aviation AASA BALSA BED - FIAA \ WING PLAN TOP VIEW LIABALSA SHEET _iZLrn~mmrzr1Th_i K lAIR7jr SlREAFAL~/lAB SO BALSA BBEABlAB IAA BALSACHARS SPARSPIABRISA BALSA MEAl MEAl SRAB HARSA RALSA MEAlTRAILIPA EASt 5* WINS BIBS ABE RAFT BALSA SABET SAAl-HASVI HAHA DIHEDRAL DETAIL WIND RIB PATTERNSIA BASS SHEER CABS ARARRI P505 SO BALSA HRBAABRASITS BALSA SABER STAB BIBS ARE STAB LIZERTIe BALSA SARAH IA RAFT BALBA SHEETlAB IBES ASAFTI zIzIIx SR BARS BALBA STABILIZER DID PATTERNS HABAlA SARA BALSA RAILABIR LABIA AR OILS SIB AlA BASIS WIRECUR ASHSTAB ABERAS SANDESIGNED BY TERRY TRORBIWSEN TRACING NT SE DEMARCO ALL RANBTB DEBARRED portant consistent flying use dowels center dihedral break drag-free key ing also offer advantage pop ping out slot hit hard obstruc tion front stab also keyed prevent flat spin stab gets cocked model DTs Astrostars CG location 73-74% wing chord dry works out well models stab size As seasoned fliers know tail-heavy models go over top nose-heavy models too loopy nose-heavy effect can appear loop side hard distinguish some times Knowing affects CG location can provide useful means fine tuning tween power glide cant accom plished incidence corrections alone know variable-incidence-tailplanes VIT can accomplish same thing like simplicity no gadgets makes straightforward model anyone can have success Personally fly such variety events like model no devices trip up heat battle least expected properly trimmed Astrostar will roll out top power run no loss altitude anyway fly Astrostar right-right can trimmed right-left desire prefer right-right pattern never fight model wants glide left should check amount washin make sure isnt forcing model glide left model uses no downthrust slight amount left thrust sometimes added eliminate initial bank right Thrust adjustments lose effec tiveness latter power stages climb model picks up speed Astrostar has scaled up other sizes 600 sq version used A/B Gas K&B 325 35 840 sq size being built C/D version has flown over longer time period result has wins its credit 1/2A event contest attend usually fly first imperative flying surfaces warp-free eliminate trim changes dif ferences speed cant overemphasize importance honking TeeDee se lect best order Kus tom Kraftsmanship fuel 50-70% nitro know Astrostar will reward performance match Construction best performance important build Astrostar between 62 72 ounces achieve take care selecting wood covering materials Just important building strong light model build free warps build models special plank has trued up pro vide flat surface Building model out warps will result consistent flight characteristics dont change function speed Wing panels built flat except right main panel should have Continued page 78 Left DT wire back stab bent S pattern attaches trailing edge has piece silk CyAed over strong durable bond Right Terry uses Dacron OT line because doesnt stretch way monofilament fishing line can Do&t use card stock piece matchbook stab shim since thickness will vary humidity Use balsa-capped thin ply instead December 1988 77 ISA BALSA RIBS /1 Cu 0 0 0 0 0 0 Cu U Cu 0 U about %2 washin outer dihedral break use carbon fiber center dihe dral breaks dont have can substitute /32 plywood Use light /16 sheet balsa preferably C-grain possible ribs Use medium balsa lead ing edges LE trailing edges TE main spar top spars should hard wood used wing should straight true geodetic ribs should put place prior adding top spars can notch exact location spars can done using piece sandpaper glued edge / x %-in piece spruce about 10 long tool can used sand down notches correct depth straightedge X-Acto knife can also used stabilizer built similar wing built lighter avoid having tailheavy model Fuselage Select medium medium light /16 sheet balsa % stringers corn ers added sides first Glue bulkhead DT tube position along front stab Temporar ily glue bulkhead firewall location help alignment next step Lay piece top cut slightly over size down flat surface Put thick Hot Stuff Super T top side stringers carefully place top top sheet Glue bottom similar man ner type construction will give strong straight fuselage pylon added until model completed get correct CG location 73-74% no fuel pylon glued bottom provide strong joint no bulkheads Covering use Micafllm since offers weight advantage fuel proof very puncture resistant use Micafilm must first apply adhesive frame work use thinned Balsarite ribs spars 3M 77 spray adhesive LE TE 3M 77 offers advantage staying tacky long enough place Micafilm position before iron down edges Cover bottom side first top por tion covering should overlap bot tom about / Use Balsarite thin Hot Stuff seal overlap joint Use iron tighten covering dont want bother Micafilm Japanese tissue will work just fine Use three four coats thinned ni trate dope followed two coats fuel proofer butyrate dope cover tissue Flying Let finishes cure week take out warps might have developed Make sure wing keyed Continued page 178 SAVE YOUR FIELD SNUF-LER muffler low cost easy Install light weight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields 3 10 decibels quieter stock muffler No power loss possible 300-500 RPM increase improves engine idle s better fuel economy Easily attached 25-108 stock mufflers No special adapters required Heat corrosion resistant Black E coat finish Weighs 35 ozs Fits ASP BRAT ENYA POX HP IRVINE K&B OS MAX ROYAL SUPER TIGRE mufflers availoDle ot hOEOy shop ORDER DIRECT immediate shipment checis MO Visa MC COD accepted Add S25O UPSc $200 COD 6% sales ras Calif resdenr SEND 25% STAMP FOR AnDITTONAL IMPO AND J TC CAPALOG 78 Model Aviation r SNUFLER MUFFLER Par Pe,d,g L 2495 CAT NO 800 date 2/24/47 accompanying three-view taken plans Goldberg fluence quite evident early ignitionpowered prototype soon-to-be-famous Zeek series As can see model quite small 277 sq wing area reported weight little over 19 oz Being designed around Ban tam Arden 19 engines models ob viously quite frisky under power ignition system mounted flat piece 3/16-in ply wood bracketed off back firewall firewall held front fuselage pair bicycle spokes anchored inside fuselage about level engine thrust line ignition flight timer mounted top fuselage just aft pylon leads soldered anchored ends bicycle spokes solder lugs clamped between spokes screw-nuts firewall used make connections thereto Dethermalizer sys tems incorporated well usually actuated Hillcrest modified Austin pneumatic timers Viable full-sized plans can made three-view sketch accompanying article enlarging sketch appropriate dimen sions Note different degree enlargement will required wing stab ribs since drawn different scale Copier ma chines have enlarging capabilities can han dle chore best bet take proj ect graphics reproduction shop special izes architectural engineering services Look Yellow Pages under head ings like Copying Duplicating Service Photo Copying Other pertinent infor mation required construct original Zeek follows wing incorporates center spars built same manner Zipper Sailplane subsequent A/B Zeek eventually kitted leading trailing edgesplus contoured tip partsare pinned down plan ribs loosely assembled spars midair running spars through before such stack fitted outline its appropriate panel section plans false ribs added last bill materials wing parts consists following center section ribs /5-in sheet balsa including two false ribs ribs re maining panels cut /6 sheet lead ing edge 3/4 x two front spars x % except tips re duced / x rear spar A-in sq TE x Y -in tapered stock contoured tip parts A-in sheet stabilizer spars bottom its construction bit easier ribs /16 sheet LE again /I6 x per wing front spar Ax rear sq Contoured outline parts /l6 sheet Finally vertical fin cut sheet complete stab unit fuselage construction also seems have simplified facsimile unique Zipper/Sailplane fuselage configuration three 3/6-in-sq side longerons pinned place plans Y16-sq uprights ce mented across tops longerons station sides removed plans turn spaced apart appropri ate lengths Y16-sq strips until fuselage box completed Also rectangular-shaped sta tion has its center filled appropriately sized piece sheet stock surely makes sturdy fuselage carry weight ig nition paraphernalia sheeted areas up front use A-in stock Finally pylon A-in sheet wing platform A-in material Should design strike fancy should now know enough about model build original 1947 Zeek NosGas Igni tion event wake contest successes 277sq -in ignition-engine-powered Zeek additional sizes built Lew others 435 sq 29 engines 575 sq Bunch 45s one-of-a-kind colossus 1500 sq powered McCoy 60 As far known versions ignitionpowered Zeeks incorporated undercambered air foils confused flatbottom-airfoil versions similar sizes came later Should readers retain orig inal plans versions hoped will brought light again soon possible enjoyed Zeek lovers thanks Carl Stokes Lew Mahieu himself getting story kicked off Theres come Well its time sign off again want give Good night AMA Nats Commit tee wherever might hiding before parting cry See ya downwind Astrostar/Thorki Idsen Continued page 78 First hand glide model Adjust nec essary incidence until have nice floating glide Double check CG loca tion major corrections incidence re quired Use baby pacifier pressure fuel tank consistent engine run set timer 2-3 seconds model should climb steeply slight right turn Correct adverse turn tendencies rudder tab trailing edge stock glued rear rudder Slowly lengthen engine run un til up full limit Properly trimmed model will make couple turns 12 seconds followed smooth transition floating glide Enjoy flying Astrostar Im sure will bring much pleasure Astrostars have given Product sources Bradley Model Products 1337 Pine Sap Ct Orlando FL 32825 Jacks Models 4036 W 173rd P1 Torrance CA 90504 Kustom Kraftsmanship Box 3010 Fallbrook CA 92028 MRL 25108 Marguerite Pky B-160 Mis sion Viejo CA 92692 CLWC General/Johnson Continued page 85 pleasant food good stopover Gander Newfoundland enjoyable Gan der flight crew changed con servative group wed already taken over airplane found difficult regain control landed International Airport Moscow went through immigra tion customs immigration officer kept half visa looked over closely waved through Same deal customsthey X-rayed things machine would accommodate aero club awaited us number buses cars somehow man aged transport fliers boxes another airport hours drive across Moscow waitingthen knowing sure whether boxes loaded fi nal trek Kiev Fortunately models made us took two trips vans get everyone everything hotel another hour away Although officials press housed hotel team quartered bungalows located behind hotel Stock Immodtote ShIpment ZE1EOAH 0-6237 cu In$26995 New Osedre 40 CDI 13bearlsg wIth eprlng suns $15995 Reg Quedn 40612296 wIth Brleghella flywheel 16 Reg Osedre 40 Pow Assenbly Only polnte $6895 OuAORAoZENOAH REPAIR $10SOIpIss pens JIw Mess ERCOUPEPLANS $2395 FULL-KIT $23995 Jiw Meeser TOMAHAWKPLANS $2396 FULL-KIT $23996 JIm Messer J2 KITTENPLANS $2996 FIJLLKIT $21995 9112 KADET SENIOR KIT $4796 Iseve $2000 9112 KADET SENIORITA KIT $3496 Isene $1500 ZENOAN 1222 $15296 ZENOAN 025 $16996 FLOATS 40-114 cools osree $2195 cswplete hit $4795 1$ WWI WHEELS 6 P1K SpIng Sterte 6 PLANS SUPER STEARMAN lItIOsdfreyI $2595 1/2 TAYLORCRAFT 113 CUB NeIItz $3995 VOLKIPLANE 113 Chlsken CheIeI $2295 Servse H402 42 $1295 World 616 tsr roe wsdels $4496 Prope eli sines iER TOP FLITS OYNATHRUST 20% OFF 118 Quedre FUELTANKSlIon $75533 $595 FIBERGLASS ARROW SHAFTS 516 n32 long 68061195 3414oo Sernine $200 psstsee 551 Chenk 5 n ts JIM MESSERS QUALITY MODEL PRODUCTS VaUy Wow Dr Box 43 AIIOgOR NY 14706 h 178 Model Aviation W rt i tsi z ~ijiqii b-a dillilil uw ce lightweight materials PO Box 16621 Dept M Irvine CA 92714 714 250-1107 CARBON FIBER LAMINATES Aerospace Composite Products offers variety rigid carbon fiber/epoxy sheets add stiffness almost material- fiberglass foam bal sawood laminates can used reinforce foam wings leading trailing edges wing spars Carbon Fiber bonds easily slow setting cyanoacrylates 5-minute epoxies laminate can stripped narrower widths CL-i 007 thick 1x48-$500 1x72-$700 CL-2 014 thick 1x48-$800 1x72-$1100 Send SASE information additional sizes products Add $300 shipping handling calif residents add 6% tax Overseas orders add 15%-Order cOD send check money order to
Edition: Model Aviation - 1988/12
Page Numbers: 75, 76, 77, 78, 178
/2A Astrostar Top Our author holas up pair OT Astrostars cover aii categones right hand weighs 7 oz used Cat 1 2 whereas other weighs 62 oz used Cat 3 exclusively Above DT fuse mounts side fuselage authors name address printed pylon case model lost prop held socket-head screw available Ace RC ensure positive retention Tee Dee engine model design generally considered successful proves itself contest cir cuit has design recently received distinguished honor being named NFFS small gas model year 1988 ETerry Thorkildsen December 1988 75 Photos author Ralph Prey Left The stab under construction Terry uses lead weights hold leading trailing edges place until things glued together Right geodetic structure wing accounts its excellent strength foreground fuselage sides prior completion Left The spar notches cut ribs lightly sanded still stacked together ensure will uniform Right diagonal ribs placed position glued CyA notches spars cut tool shown right end wing made piece 1A x % spruce medium-grit sandpaper glued edge used sand notches appropriate depth THIS AIRCRAFT designed 1985 based earlier model called Jupiter Jupiter fairly successful having placed 4th 1984 Reno Nats 3rd Open 1984 US Free Flight Champs Taft Jupiter nice lines elliptical tips didnt have consistency wanted starting point refined de sign came up Astrostar Astrostar went constant-chord wing 317 sq placed rudder rear used smaller stabilizer As evident plans construc tion quite straightforward model can built novice good chances favorable results size model selected based fact flying Taft under Cat 1 conditions 5-mm maxes Smaller models can get pretty tough see get specked Out booming thermal However model has suc cessfully flown categories will typ ically weigh 65 70 oz no fuel feel size model works well categories will handle full power hot TeeDee no wasted gyra tions change needed Cat 3 flying build lighter real light will weigh 62 oz weight held Cat 3 record 1987 achieve weight takes careful selection components Dont give anything free ride simple thing like engine mount can cost 025 05 oz always back-mount TeeDees Careful selection wood finishes glues required come lighter weight can built 65- 70-oz range quite easily help keep weight down use Mic afilm covering exclusively has added benefit being fuel proof puncture re sistant major disadvantage Mic afilm doesnt have much torsional rigid ity tissue dope problem elim inated Union Jack geodetic construc tion offers strong warp-free struc ture overall rigidity retained real benefit Micafilm early morn ing dampness doesnt loosen covering can rack up maxes thick morning air Behaved covering really advantage one-flight unlimitedduration dawn events some west coast contests feature airfoil used model similar Ramrods thinner isnt draggy climb flat-bottomed section 93% thick its high point 35% yields faster climb get undercambered wing light ly loaded model like dont give up much glide stab sec tion thinned 73% necessary avoid overpowering wing high speeds going over top Turbulator spars offer both rigidity consist ent airfoil critical front section effective model uses carbon fiber reinforce center dihedral break also rudder stiffness wings built flat except small amount washin about Y32 right main panel No washout used tips dont recommend fast moving model prefer use washout Rubber Nordic models center gravity CG positioned 73-74% fuel pylon located last after model completely assembled achieve pylon glued bottom fuselage produces exceptionally strong joint gives extra rigidity pylon Re cently have adding small piece 1A6-sq spruce front pylon avoid nicks stress cracks seem develop time fuselage uses %2-sq balsa stringers four corners full length pro vide exceptional strength-to-weight ra tio technique can build fu selage no bulkheads usually add tail front stab half near dethermalizer DT tube pro vide necessary strength may have force tight fuse fuselage doped nitrate followed couple coats thinned clear K&B Super Poxy add aniline dye nitrate dope viv id translucent coloring effect use Super Poxy Micafilm model wont pick up weight becomes con test veteran Astrostar uses rear rudder pro vide consistent power pattern rudder location keying stab critical model definitely seems groove better rear rudder some models have undesired tendency weathervane height size rud der determine Use 35% wing area rudder configuration shown avoids problem Keying wing will always mounted same position very im 76 Model Aviation AASA BALSA BED - FIAA \ WING PLAN TOP VIEW LIABALSA SHEET _iZLrn~mmrzr1Th_i K lAIR7jr SlREAFAL~/lAB SO BALSA BBEABlAB IAA BALSACHARS SPARSPIABRISA BALSA MEAl MEAl SRAB HARSA RALSA MEAlTRAILIPA EASt 5* WINS BIBS ABE RAFT BALSA SABET SAAl-HASVI HAHA DIHEDRAL DETAIL WIND RIB PATTERNSIA BASS SHEER CABS ARARRI P505 SO BALSA HRBAABRASITS BALSA SABER STAB BIBS ARE STAB LIZERTIe BALSA SARAH IA RAFT BALBA SHEETlAB IBES ASAFTI zIzIIx SR BARS BALBA STABILIZER DID PATTERNS HABAlA SARA BALSA RAILABIR LABIA AR OILS SIB AlA BASIS WIRECUR ASHSTAB ABERAS SANDESIGNED BY TERRY TRORBIWSEN TRACING NT SE DEMARCO ALL RANBTB DEBARRED portant consistent flying use dowels center dihedral break drag-free key ing also offer advantage pop ping out slot hit hard obstruc tion front stab also keyed prevent flat spin stab gets cocked model DTs Astrostars CG location 73-74% wing chord dry works out well models stab size As seasoned fliers know tail-heavy models go over top nose-heavy models too loopy nose-heavy effect can appear loop side hard distinguish some times Knowing affects CG location can provide useful means fine tuning tween power glide cant accom plished incidence corrections alone know variable-incidence-tailplanes VIT can accomplish same thing like simplicity no gadgets makes straightforward model anyone can have success Personally fly such variety events like model no devices trip up heat battle least expected properly trimmed Astrostar will roll out top power run no loss altitude anyway fly Astrostar right-right can trimmed right-left desire prefer right-right pattern never fight model wants glide left should check amount washin make sure isnt forcing model glide left model uses no downthrust slight amount left thrust sometimes added eliminate initial bank right Thrust adjustments lose effec tiveness latter power stages climb model picks up speed Astrostar has scaled up other sizes 600 sq version used A/B Gas K&B 325 35 840 sq size being built C/D version has flown over longer time period result has wins its credit 1/2A event contest attend usually fly first imperative flying surfaces warp-free eliminate trim changes dif ferences speed cant overemphasize importance honking TeeDee se lect best order Kus tom Kraftsmanship fuel 50-70% nitro know Astrostar will reward performance match Construction best performance important build Astrostar between 62 72 ounces achieve take care selecting wood covering materials Just important building strong light model build free warps build models special plank has trued up pro vide flat surface Building model out warps will result consistent flight characteristics dont change function speed Wing panels built flat except right main panel should have Continued page 78 Left DT wire back stab bent S pattern attaches trailing edge has piece silk CyAed over strong durable bond Right Terry uses Dacron OT line because doesnt stretch way monofilament fishing line can Do&t use card stock piece matchbook stab shim since thickness will vary humidity Use balsa-capped thin ply instead December 1988 77 ISA BALSA RIBS /1 Cu 0 0 0 0 0 0 Cu U Cu 0 U about %2 washin outer dihedral break use carbon fiber center dihe dral breaks dont have can substitute /32 plywood Use light /16 sheet balsa preferably C-grain possible ribs Use medium balsa lead ing edges LE trailing edges TE main spar top spars should hard wood used wing should straight true geodetic ribs should put place prior adding top spars can notch exact location spars can done using piece sandpaper glued edge / x %-in piece spruce about 10 long tool can used sand down notches correct depth straightedge X-Acto knife can also used stabilizer built similar wing built lighter avoid having tailheavy model Fuselage Select medium medium light /16 sheet balsa % stringers corn ers added sides first Glue bulkhead DT tube position along front stab Temporar ily glue bulkhead firewall location help alignment next step Lay piece top cut slightly over size down flat surface Put thick Hot Stuff Super T top side stringers carefully place top top sheet Glue bottom similar man ner type construction will give strong straight fuselage pylon added until model completed get correct CG location 73-74% no fuel pylon glued bottom provide strong joint no bulkheads Covering use Micafllm since offers weight advantage fuel proof very puncture resistant use Micafilm must first apply adhesive frame work use thinned Balsarite ribs spars 3M 77 spray adhesive LE TE 3M 77 offers advantage staying tacky long enough place Micafilm position before iron down edges Cover bottom side first top por tion covering should overlap bot tom about / Use Balsarite thin Hot Stuff seal overlap joint Use iron tighten covering dont want bother Micafilm Japanese tissue will work just fine Use three four coats thinned ni trate dope followed two coats fuel proofer butyrate dope cover tissue Flying Let finishes cure week take out warps might have developed Make sure wing keyed Continued page 178 SAVE YOUR FIELD SNUF-LER muffler low cost easy Install light weight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields 3 10 decibels quieter stock muffler No power loss possible 300-500 RPM increase improves engine idle s better fuel economy Easily attached 25-108 stock mufflers No special adapters required Heat corrosion resistant Black E coat finish Weighs 35 ozs Fits ASP BRAT ENYA POX HP IRVINE K&B OS MAX ROYAL SUPER TIGRE mufflers availoDle ot hOEOy shop ORDER DIRECT immediate shipment checis MO Visa MC COD accepted Add S25O UPSc $200 COD 6% sales ras Calif resdenr SEND 25% STAMP FOR AnDITTONAL IMPO AND J TC CAPALOG 78 Model Aviation r SNUFLER MUFFLER Par Pe,d,g L 2495 CAT NO 800 date 2/24/47 accompanying three-view taken plans Goldberg fluence quite evident early ignitionpowered prototype soon-to-be-famous Zeek series As can see model quite small 277 sq wing area reported weight little over 19 oz Being designed around Ban tam Arden 19 engines models ob viously quite frisky under power ignition system mounted flat piece 3/16-in ply wood bracketed off back firewall firewall held front fuselage pair bicycle spokes anchored inside fuselage about level engine thrust line ignition flight timer mounted top fuselage just aft pylon leads soldered anchored ends bicycle spokes solder lugs clamped between spokes screw-nuts firewall used make connections thereto Dethermalizer sys tems incorporated well usually actuated Hillcrest modified Austin pneumatic timers Viable full-sized plans can made three-view sketch accompanying article enlarging sketch appropriate dimen sions Note different degree enlargement will required wing stab ribs since drawn different scale Copier ma chines have enlarging capabilities can han dle chore best bet take proj ect graphics reproduction shop special izes architectural engineering services Look Yellow Pages under head ings like Copying Duplicating Service Photo Copying Other pertinent infor mation required construct original Zeek follows wing incorporates center spars built same manner Zipper Sailplane subsequent A/B Zeek eventually kitted leading trailing edgesplus contoured tip partsare pinned down plan ribs loosely assembled spars midair running spars through before such stack fitted outline its appropriate panel section plans false ribs added last bill materials wing parts consists following center section ribs /5-in sheet balsa including two false ribs ribs re maining panels cut /6 sheet lead ing edge 3/4 x two front spars x % except tips re duced / x rear spar A-in sq TE x Y -in tapered stock contoured tip parts A-in sheet stabilizer spars bottom its construction bit easier ribs /16 sheet LE again /I6 x per wing front spar Ax rear sq Contoured outline parts /l6 sheet Finally vertical fin cut sheet complete stab unit fuselage construction also seems have simplified facsimile unique Zipper/Sailplane fuselage configuration three 3/6-in-sq side longerons pinned place plans Y16-sq uprights ce mented across tops longerons station sides removed plans turn spaced apart appropri ate lengths Y16-sq strips until fuselage box completed Also rectangular-shaped sta tion has its center filled appropriately sized piece sheet stock surely makes sturdy fuselage carry weight ig nition paraphernalia sheeted areas up front use A-in stock Finally pylon A-in sheet wing platform A-in material Should design strike fancy should now know enough about model build original 1947 Zeek NosGas Igni tion event wake contest successes 277sq -in ignition-engine-powered Zeek additional sizes built Lew others 435 sq 29 engines 575 sq Bunch 45s one-of-a-kind colossus 1500 sq powered McCoy 60 As far known versions ignitionpowered Zeeks incorporated undercambered air foils confused flatbottom-airfoil versions similar sizes came later Should readers retain orig inal plans versions hoped will brought light again soon possible enjoyed Zeek lovers thanks Carl Stokes Lew Mahieu himself getting story kicked off Theres come Well its time sign off again want give Good night AMA Nats Commit tee wherever might hiding before parting cry See ya downwind Astrostar/Thorki Idsen Continued page 78 First hand glide model Adjust nec essary incidence until have nice floating glide Double check CG loca tion major corrections incidence re quired Use baby pacifier pressure fuel tank consistent engine run set timer 2-3 seconds model should climb steeply slight right turn Correct adverse turn tendencies rudder tab trailing edge stock glued rear rudder Slowly lengthen engine run un til up full limit Properly trimmed model will make couple turns 12 seconds followed smooth transition floating glide Enjoy flying Astrostar Im sure will bring much pleasure Astrostars have given Product sources Bradley Model Products 1337 Pine Sap Ct Orlando FL 32825 Jacks Models 4036 W 173rd P1 Torrance CA 90504 Kustom Kraftsmanship Box 3010 Fallbrook CA 92028 MRL 25108 Marguerite Pky B-160 Mis sion Viejo CA 92692 CLWC General/Johnson Continued page 85 pleasant food good stopover Gander Newfoundland enjoyable Gan der flight crew changed con servative group wed already taken over airplane found difficult regain control landed International Airport Moscow went through immigra tion customs immigration officer kept half visa looked over closely waved through Same deal customsthey X-rayed things machine would accommodate aero club awaited us number buses cars somehow man aged transport fliers boxes another airport hours drive across Moscow waitingthen knowing sure whether boxes loaded fi nal trek Kiev Fortunately models made us took two trips vans get everyone everything hotel another hour away Although officials press housed hotel team quartered bungalows located behind hotel Stock Immodtote ShIpment ZE1EOAH 0-6237 cu In$26995 New Osedre 40 CDI 13bearlsg wIth eprlng suns $15995 Reg Quedn 40612296 wIth Brleghella flywheel 16 Reg Osedre 40 Pow Assenbly Only polnte $6895 OuAORAoZENOAH REPAIR $10SOIpIss pens JIw Mess ERCOUPEPLANS $2395 FULL-KIT $23995 Jiw Meeser TOMAHAWKPLANS $2396 FULL-KIT $23996 JIm Messer J2 KITTENPLANS $2996 FIJLLKIT $21995 9112 KADET SENIOR KIT $4796 Iseve $2000 9112 KADET SENIORITA KIT $3496 Isene $1500 ZENOAN 1222 $15296 ZENOAN 025 $16996 FLOATS 40-114 cools osree $2195 cswplete hit $4795 1$ WWI WHEELS 6 P1K SpIng Sterte 6 PLANS SUPER STEARMAN lItIOsdfreyI $2595 1/2 TAYLORCRAFT 113 CUB NeIItz $3995 VOLKIPLANE 113 Chlsken CheIeI $2295 Servse H402 42 $1295 World 616 tsr roe wsdels $4496 Prope eli sines iER TOP FLITS OYNATHRUST 20% OFF 118 Quedre FUELTANKSlIon $75533 $595 FIBERGLASS ARROW SHAFTS 516 n32 long 68061195 3414oo Sernine $200 psstsee 551 Chenk 5 n ts JIM MESSERS QUALITY MODEL PRODUCTS VaUy Wow Dr Box 43 AIIOgOR NY 14706 h 178 Model Aviation W rt i tsi z ~ijiqii b-a dillilil uw ce lightweight materials PO Box 16621 Dept M Irvine CA 92714 714 250-1107 CARBON FIBER LAMINATES Aerospace Composite Products offers variety rigid carbon fiber/epoxy sheets add stiffness almost material- fiberglass foam bal sawood laminates can used reinforce foam wings leading trailing edges wing spars Carbon Fiber bonds easily slow setting cyanoacrylates 5-minute epoxies laminate can stripped narrower widths CL-i 007 thick 1x48-$500 1x72-$700 CL-2 014 thick 1x48-$800 1x72-$1100 Send SASE information additional sizes products Add $300 shipping handling calif residents add 6% tax Overseas orders add 15%-Order cOD send check money order to
Edition: Model Aviation - 1988/12
Page Numbers: 75, 76, 77, 78, 178
/2A Astrostar Top Our author holas up pair OT Astrostars cover aii categones right hand weighs 7 oz used Cat 1 2 whereas other weighs 62 oz used Cat 3 exclusively Above DT fuse mounts side fuselage authors name address printed pylon case model lost prop held socket-head screw available Ace RC ensure positive retention Tee Dee engine model design generally considered successful proves itself contest cir cuit has design recently received distinguished honor being named NFFS small gas model year 1988 ETerry Thorkildsen December 1988 75 Photos author Ralph Prey Left The stab under construction Terry uses lead weights hold leading trailing edges place until things glued together Right geodetic structure wing accounts its excellent strength foreground fuselage sides prior completion Left The spar notches cut ribs lightly sanded still stacked together ensure will uniform Right diagonal ribs placed position glued CyA notches spars cut tool shown right end wing made piece 1A x % spruce medium-grit sandpaper glued edge used sand notches appropriate depth THIS AIRCRAFT designed 1985 based earlier model called Jupiter Jupiter fairly successful having placed 4th 1984 Reno Nats 3rd Open 1984 US Free Flight Champs Taft Jupiter nice lines elliptical tips didnt have consistency wanted starting point refined de sign came up Astrostar Astrostar went constant-chord wing 317 sq placed rudder rear used smaller stabilizer As evident plans construc tion quite straightforward model can built novice good chances favorable results size model selected based fact flying Taft under Cat 1 conditions 5-mm maxes Smaller models can get pretty tough see get specked Out booming thermal However model has suc cessfully flown categories will typ ically weigh 65 70 oz no fuel feel size model works well categories will handle full power hot TeeDee no wasted gyra tions change needed Cat 3 flying build lighter real light will weigh 62 oz weight held Cat 3 record 1987 achieve weight takes careful selection components Dont give anything free ride simple thing like engine mount can cost 025 05 oz always back-mount TeeDees Careful selection wood finishes glues required come lighter weight can built 65- 70-oz range quite easily help keep weight down use Mic afilm covering exclusively has added benefit being fuel proof puncture re sistant major disadvantage Mic afilm doesnt have much torsional rigid ity tissue dope problem elim inated Union Jack geodetic construc tion offers strong warp-free struc ture overall rigidity retained real benefit Micafilm early morn ing dampness doesnt loosen covering can rack up maxes thick morning air Behaved covering really advantage one-flight unlimitedduration dawn events some west coast contests feature airfoil used model similar Ramrods thinner isnt draggy climb flat-bottomed section 93% thick its high point 35% yields faster climb get undercambered wing light ly loaded model like dont give up much glide stab sec tion thinned 73% necessary avoid overpowering wing high speeds going over top Turbulator spars offer both rigidity consist ent airfoil critical front section effective model uses carbon fiber reinforce center dihedral break also rudder stiffness wings built flat except small amount washin about Y32 right main panel No washout used tips dont recommend fast moving model prefer use washout Rubber Nordic models center gravity CG positioned 73-74% fuel pylon located last after model completely assembled achieve pylon glued bottom fuselage produces exceptionally strong joint gives extra rigidity pylon Re cently have adding small piece 1A6-sq spruce front pylon avoid nicks stress cracks seem develop time fuselage uses %2-sq balsa stringers four corners full length pro vide exceptional strength-to-weight ra tio technique can build fu selage no bulkheads usually add tail front stab half near dethermalizer DT tube pro vide necessary strength may have force tight fuse fuselage doped nitrate followed couple coats thinned clear K&B Super Poxy add aniline dye nitrate dope viv id translucent coloring effect use Super Poxy Micafilm model wont pick up weight becomes con test veteran Astrostar uses rear rudder pro vide consistent power pattern rudder location keying stab critical model definitely seems groove better rear rudder some models have undesired tendency weathervane height size rud der determine Use 35% wing area rudder configuration shown avoids problem Keying wing will always mounted same position very im 76 Model Aviation AASA BALSA BED - FIAA \ WING PLAN TOP VIEW LIABALSA SHEET _iZLrn~mmrzr1Th_i K lAIR7jr SlREAFAL~/lAB SO BALSA BBEABlAB IAA BALSACHARS SPARSPIABRISA BALSA MEAl MEAl SRAB HARSA RALSA MEAlTRAILIPA EASt 5* WINS BIBS ABE RAFT BALSA SABET SAAl-HASVI HAHA DIHEDRAL DETAIL WIND RIB PATTERNSIA BASS SHEER CABS ARARRI P505 SO BALSA HRBAABRASITS BALSA SABER STAB BIBS ARE STAB LIZERTIe BALSA SARAH IA RAFT BALBA SHEETlAB IBES ASAFTI zIzIIx SR BARS BALBA STABILIZER DID PATTERNS HABAlA SARA BALSA RAILABIR LABIA AR OILS SIB AlA BASIS WIRECUR ASHSTAB ABERAS SANDESIGNED BY TERRY TRORBIWSEN TRACING NT SE DEMARCO ALL RANBTB DEBARRED portant consistent flying use dowels center dihedral break drag-free key ing also offer advantage pop ping out slot hit hard obstruc tion front stab also keyed prevent flat spin stab gets cocked model DTs Astrostars CG location 73-74% wing chord dry works out well models stab size As seasoned fliers know tail-heavy models go over top nose-heavy models too loopy nose-heavy effect can appear loop side hard distinguish some times Knowing affects CG location can provide useful means fine tuning tween power glide cant accom plished incidence corrections alone know variable-incidence-tailplanes VIT can accomplish same thing like simplicity no gadgets makes straightforward model anyone can have success Personally fly such variety events like model no devices trip up heat battle least expected properly trimmed Astrostar will roll out top power run no loss altitude anyway fly Astrostar right-right can trimmed right-left desire prefer right-right pattern never fight model wants glide left should check amount washin make sure isnt forcing model glide left model uses no downthrust slight amount left thrust sometimes added eliminate initial bank right Thrust adjustments lose effec tiveness latter power stages climb model picks up speed Astrostar has scaled up other sizes 600 sq version used A/B Gas K&B 325 35 840 sq size being built C/D version has flown over longer time period result has wins its credit 1/2A event contest attend usually fly first imperative flying surfaces warp-free eliminate trim changes dif ferences speed cant overemphasize importance honking TeeDee se lect best order Kus tom Kraftsmanship fuel 50-70% nitro know Astrostar will reward performance match Construction best performance important build Astrostar between 62 72 ounces achieve take care selecting wood covering materials Just important building strong light model build free warps build models special plank has trued up pro vide flat surface Building model out warps will result consistent flight characteristics dont change function speed Wing panels built flat except right main panel should have Continued page 78 Left DT wire back stab bent S pattern attaches trailing edge has piece silk CyAed over strong durable bond Right Terry uses Dacron OT line because doesnt stretch way monofilament fishing line can Do&t use card stock piece matchbook stab shim since thickness will vary humidity Use balsa-capped thin ply instead December 1988 77 ISA BALSA RIBS /1 Cu 0 0 0 0 0 0 Cu U Cu 0 U about %2 washin outer dihedral break use carbon fiber center dihe dral breaks dont have can substitute /32 plywood Use light /16 sheet balsa preferably C-grain possible ribs Use medium balsa lead ing edges LE trailing edges TE main spar top spars should hard wood used wing should straight true geodetic ribs should put place prior adding top spars can notch exact location spars can done using piece sandpaper glued edge / x %-in piece spruce about 10 long tool can used sand down notches correct depth straightedge X-Acto knife can also used stabilizer built similar wing built lighter avoid having tailheavy model Fuselage Select medium medium light /16 sheet balsa % stringers corn ers added sides first Glue bulkhead DT tube position along front stab Temporar ily glue bulkhead firewall location help alignment next step Lay piece top cut slightly over size down flat surface Put thick Hot Stuff Super T top side stringers carefully place top top sheet Glue bottom similar man ner type construction will give strong straight fuselage pylon added until model completed get correct CG location 73-74% no fuel pylon glued bottom provide strong joint no bulkheads Covering use Micafllm since offers weight advantage fuel proof very puncture resistant use Micafilm must first apply adhesive frame work use thinned Balsarite ribs spars 3M 77 spray adhesive LE TE 3M 77 offers advantage staying tacky long enough place Micafilm position before iron down edges Cover bottom side first top por tion covering should overlap bot tom about / Use Balsarite thin Hot Stuff seal overlap joint Use iron tighten covering dont want bother Micafilm Japanese tissue will work just fine Use three four coats thinned ni trate dope followed two coats fuel proofer butyrate dope cover tissue Flying Let finishes cure week take out warps might have developed Make sure wing keyed Continued page 178 SAVE YOUR FIELD SNUF-LER muffler low cost easy Install light weight sound reducing muffler no performance penalty answer AMA muffler rule suggestions saving flying fields 3 10 decibels quieter stock muffler No power loss possible 300-500 RPM increase improves engine idle s better fuel economy Easily attached 25-108 stock mufflers No special adapters required Heat corrosion resistant Black E coat finish Weighs 35 ozs Fits ASP BRAT ENYA POX HP IRVINE K&B OS MAX ROYAL SUPER TIGRE mufflers availoDle ot hOEOy shop ORDER DIRECT immediate shipment checis MO Visa MC COD accepted Add S25O UPSc $200 COD 6% sales ras Calif resdenr SEND 25% STAMP FOR AnDITTONAL IMPO AND J TC CAPALOG 78 Model Aviation r SNUFLER MUFFLER Par Pe,d,g L 2495 CAT NO 800 date 2/24/47 accompanying three-view taken plans Goldberg fluence quite evident early ignitionpowered prototype soon-to-be-famous Zeek series As can see model quite small 277 sq wing area reported weight little over 19 oz Being designed around Ban tam Arden 19 engines models ob viously quite frisky under power ignition system mounted flat piece 3/16-in ply wood bracketed off back firewall firewall held front fuselage pair bicycle spokes anchored inside fuselage about level engine thrust line ignition flight timer mounted top fuselage just aft pylon leads soldered anchored ends bicycle spokes solder lugs clamped between spokes screw-nuts firewall used make connections thereto Dethermalizer sys tems incorporated well usually actuated Hillcrest modified Austin pneumatic timers Viable full-sized plans can made three-view sketch accompanying article enlarging sketch appropriate dimen sions Note different degree enlargement will required wing stab ribs since drawn different scale Copier ma chines have enlarging capabilities can han dle chore best bet take proj ect graphics reproduction shop special izes architectural engineering services Look Yellow Pages under head ings like Copying Duplicating Service Photo Copying Other pertinent infor mation required construct original Zeek follows wing incorporates center spars built same manner Zipper Sailplane subsequent A/B Zeek eventually kitted leading trailing edgesplus contoured tip partsare pinned down plan ribs loosely assembled spars midair running spars through before such stack fitted outline its appropriate panel section plans false ribs added last bill materials wing parts consists following center section ribs /5-in sheet balsa including two false ribs ribs re maining panels cut /6 sheet lead ing edge 3/4 x two front spars x % except tips re duced / x rear spar A-in sq TE x Y -in tapered stock contoured tip parts A-in sheet stabilizer spars bottom its construction bit easier ribs /16 sheet LE again /I6 x per wing front spar Ax rear sq Contoured outline parts /l6 sheet Finally vertical fin cut sheet complete stab unit fuselage construction also seems have simplified facsimile unique Zipper/Sailplane fuselage configuration three 3/6-in-sq side longerons pinned place plans Y16-sq uprights ce mented across tops longerons station sides removed plans turn spaced apart appropri ate lengths Y16-sq strips until fuselage box completed Also rectangular-shaped sta tion has its center filled appropriately sized piece sheet stock surely makes sturdy fuselage carry weight ig nition paraphernalia sheeted areas up front use A-in stock Finally pylon A-in sheet wing platform A-in material Should design strike fancy should now know enough about model build original 1947 Zeek NosGas Igni tion event wake contest successes 277sq -in ignition-engine-powered Zeek additional sizes built Lew others 435 sq 29 engines 575 sq Bunch 45s one-of-a-kind colossus 1500 sq powered McCoy 60 As far known versions ignitionpowered Zeeks incorporated undercambered air foils confused flatbottom-airfoil versions similar sizes came later Should readers retain orig inal plans versions hoped will brought light again soon possible enjoyed Zeek lovers thanks Carl Stokes Lew Mahieu himself getting story kicked off Theres come Well its time sign off again want give Good night AMA Nats Commit tee wherever might hiding before parting cry See ya downwind Astrostar/Thorki Idsen Continued page 78 First hand glide model Adjust nec essary incidence until have nice floating glide Double check CG loca tion major corrections incidence re quired Use baby pacifier pressure fuel tank consistent engine run set timer 2-3 seconds model should climb steeply slight right turn Correct adverse turn tendencies rudder tab trailing edge stock glued rear rudder Slowly lengthen engine run un til up full limit Properly trimmed model will make couple turns 12 seconds followed smooth transition floating glide Enjoy flying Astrostar Im sure will bring much pleasure Astrostars have given Product sources Bradley Model Products 1337 Pine Sap Ct Orlando FL 32825 Jacks Models 4036 W 173rd P1 Torrance CA 90504 Kustom Kraftsmanship Box 3010 Fallbrook CA 92028 MRL 25108 Marguerite Pky B-160 Mis sion Viejo CA 92692 CLWC General/Johnson Continued page 85 pleasant food good stopover Gander Newfoundland enjoyable Gan der flight crew changed con servative group wed already taken over airplane found difficult regain control landed International Airport Moscow went through immigra tion customs immigration officer kept half visa looked over closely waved through Same deal customsthey X-rayed things machine would accommodate aero club awaited us number buses cars somehow man aged transport fliers boxes another airport hours drive across Moscow waitingthen knowing sure whether boxes loaded fi nal trek Kiev Fortunately models made us took two trips vans get everyone everything hotel another hour away Although officials press housed hotel team quartered bungalows located behind hotel Stock Immodtote ShIpment ZE1EOAH 0-6237 cu In$26995 New Osedre 40 CDI 13bearlsg wIth eprlng suns $15995 Reg Quedn 40612296 wIth Brleghella flywheel 16 Reg Osedre 40 Pow Assenbly Only polnte $6895 OuAORAoZENOAH REPAIR $10SOIpIss pens JIw Mess ERCOUPEPLANS $2395 FULL-KIT $23995 Jiw Meeser TOMAHAWKPLANS $2396 FULL-KIT $23996 JIm Messer J2 KITTENPLANS $2996 FIJLLKIT $21995 9112 KADET SENIOR KIT $4796 Iseve $2000 9112 KADET SENIORITA KIT $3496 Isene $1500 ZENOAN 1222 $15296 ZENOAN 025 $16996 FLOATS 40-114 cools osree $2195 cswplete hit $4795 1$ WWI WHEELS 6 P1K SpIng Sterte 6 PLANS SUPER STEARMAN lItIOsdfreyI $2595 1/2 TAYLORCRAFT 113 CUB NeIItz $3995 VOLKIPLANE 113 Chlsken CheIeI $2295 Servse H402 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