U DB Mathews ikZ L Lets discuss part construction common source trouble newcomers sometimes more-experienced builders Hinging movable surfaces Radio Control RC models too difficult anymore models seen huge spaces between halves gap surfaces bind moved surfaces level worst surfaces inadequately adhered model hinging problems limited homebuilt models frequently found acronym ARF [Almost-Ready-to-Fly] RTF [Ready-to-Fly] RTC [Ready-to-Cover] ARTC [Almost-Ready-to-Cover] etc group factory-built models Occasionally hinge installations poor its necessary cut off hinges redo early days escapement RC little power available rule thumb pushrod off surface should fall up down its own weight free movement also considered necessary Control Line CL models Common practice use section thin music wire imbedded its ends surface running inside section aluminum tube adhered other surface Alternately sections cloth adhered surfaces over-and-under patterna method still used often CL models considerable increase force modern servos no longer need hinges that free-moving still represents worthwhile goal following might old hat experienced modelers might pick up tidbit Ive hinged model two time am moment fully expect learn soon most-common problem new fliers airplanes hinging control surfaces RTF models have improperly factoryinstalled hinges Hinges should adhered strongly enough resist pulling surface given good tug ones fingers Surfaces should move freely binding run limits specified deflection Conversely space between mating halves surfaces should minimum improved efficiency Small gaps reduce amounts needed deflection reducing airflow through opening resulting smoother flights less stress servos linkages prevention flutter higher speeds ARF models hinges loose flow medium CyA cyanoacrylate glue slots gap excessive surfaces bind flexed may necessary cut hinges off flush both surfaces sharp modeling knife rehinge using products will mention Any rnbbing binding linkage between servo moving surfaces must corrected fly model airplane loose binding hinges Several classes hinges available selection somewhat function application small models thin surfaces April 1999 79 Materials make slotting tool installing hingesSandwich blade between plywood pieces glue medium CyA structure flat surface cut level slots hinge place Note corners have trimmed cannot successfully hinged large twopart molded units designed h-scale models vice versa Figure-Eight Hinges Ultraminiature models may require easy-to-make figure-8 hinges made kite cord Drill punch small holes opposite other wood Coat tip 24-inch length cord CyA shape tip point Lace cord back forth over undermuch like shoelacesinto snug figure-8 pattern between surfaces Feed last turn back through adjacent hole snug fit clip off cord coat area around holes thin CyA hinge must snug control surface will flap figure-8 hinges used models early days nothing else available worked nearly well now seen mainly tiny RC models Laminated Hinges Perhaps simplest type hinge install made laminating three layers tough plastic Identified modeling literature variety names ranging hot hinges brand names taking liberty coining own terms Available different names several manufacturers some recent kits include hinges hardware packages However installed basically same manner outer two layers hinge absorbent wicking material usually chemically treated encourage thin CyA flow soak hinge surrounding wood way inside inner core flexible very strong MylarTM Small 02-06 models surfaces thin /32 can hinged layered hinges cut smaller sections other extreme hinges can used large models applied double width multiple spots hinge lines Laminated hinges designed adhered thin CvA use other adhesive apply hinges 1 pencil draw centerline surfaces hinged Mark locations referring kits plans 2 Using modeling knife fresh #11 blade carefully cut shallow slit hinge location marks first slits should shallow serve guide subsequent deeper cuts slit should slightly wider actual hinge 3 Make three four additional cuts same line going deeper time Concentrate staying slit keeping blade headed center wood avoid having blade penetrate top bottom piece Use wiggling motion knife handle rather attempting entire slice continuous motion Using small cuts continue until slot about /2-inch deep 4 After required slots have cut clip square corners off hinges scissors push test hinge slot check difficulty pushing necessary reinsert blade move back forth few times recheck hinge Avoid creating too much space may allow good adhesion future reason hinge slot tools mentioned later satisfactory use laminated hinges 5 Carefully test-fit surfaces sliding onto hinges Installing surface carefully wiggling other surface angle over hinges starting end working other usually works better attempting push everything together straight Occasionally hinge surface will slide too far structure opposing surface slid instance 80 Model Aviation SCALE CATALOGS SPPS16osu~eCononPIs$500 SPPS 12OOfl Doajaentaton Photm 3Vs$500 ASP ModeLAJrraftComton Plans$500 ASP SiePJrmft Drawrus 3Vs$500 WACO YMF-5 1/4 Scale 90 Plans $3500 VaMC Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave Greensboro NC 27403 PHONE/FAX 336-292-5239 pin can stuck through hold place hinges creased bent toss almost impossible use crooked 6 create proper gap between parts deflect control surface maximum amount needed surfaces close together possible will automatically set proper hinge gap everything functions well remove surfaces cover 7 Once covered relocate previously prepared slots cut through covering material remove about 6 around slot will assure flow thin CyA hinge surrounding wood possibility covering material creating dam slot 8 Put three four drops thin CyA hinge gap Applicator tips such Sig SH-10220 greatly simplify delivery small amounts runoff adhesive will quickly wick slot penetrates wood hinge surface Continue dropping adhesive onto top bottom hinge surface until have adhered Excess CyA can removed rag saturated debonder 9 Make application CyA Additional adhesive will puddle middle hinge gap can weaken hinge produce dislodging forces fear adhesive has penetrated well drill small holes through both surfaces wood hinges push sections round toothpicks tightly holes trim excess toenail clipper wick thin CyA onto toothpick sections Never use accelerator installing hinges 10 Allow everything cure five minutes flex surfaces up down may hit stiffness joint first will go away additional flexing simple useful slotting tool developed Ace RJC staff Whiz 40 kit can made scrap plywood half thickness surface stabilizer -inch material use 1/8 plywood Cut plywood two 1- x 1-inch squares Sandwich sharp #11 blade between BILL EFFINGER* SAYSI hose just added hooard OGA 15 rrrn lice P1000 Partero Sets kOOW yasijo Ii lil ill 7/6 Scale HOWARD DGA-15 40 78 CID erroises 76 sospos verall leOglir 5 lbs less h/C 4/5 Oh h/C otPlvoaood Corlstractlorl OCOSt51890 Prices oe complete tull size pions & derailed ports lists PLEASE ADD$490 shipping mailing tabe Seed $100 Fe Pb Sets bochwe mitts 60 Ptann Poffes, Sets EMS SERVO REVERSER Worko AM FM PCM radios 4 5 cells lastall line servo servo will move lathe opposite direction 5 o 175 v 25 weight 25 ounce EMS SR-2 connector $1495 wired connectars $1995 EMS SR-2Y wired leg ot Y harness tur $2250 GEARAND DOOR SEQUENCER microprocessor driver device controls sequences landing gear mechanism landing gear doors Works air and/or servo controlled systems Gear servo door servo travel time individually adjustable full speed 10 secoods Gear doors may remain open ala P-47 close utter lowering gnar ala P-Si Gear doesnt muve until doors travel fully completed unit must retract system Size 15 x 15 75 Less 1 ounce Includes servo connector receiver $4495 Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllarnesa GS-1Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight limer2995 NEW Stop-Go-Light0M2495 Gear Door Cycler3495 Channel Failsafe3895 Opto-Isolateri Electronic Switch3995 Dual E-S witch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Morie Electronic Mixer4495 Glitch Buster/6 Channel Opto -Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor Ultralight ESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yorba Linda C4 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom ONN W M M H ARPLANE VERSION $3995 HELICOPTER VERSION $4495 Pa k 5ppg & 5Os ThWui S 6924i/OZodTolsaOK74r33-5350 FaaqlO4qO-9375 Z MATE BAITERY BACKER BEST way insure reliable power model Use two packs Works standard 4 cell S cell GEL-CELL packs Battery packs can different capacity likes 1200 600 1 5 o 15 v 75 weight 8 ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolated gluw driver switch ensures against radio noise ON point easily adjustable user small screwdriver Size 15 v 15 v 75 Less 1 ounce Supplied glow-plug wire connector User supplies own NICAG battery Includes servo connector receiver $4495 NEW MiniM4X 40 ESC w/BEC Brake$9995 MiniMAX Original ESC WI Brake7995 Sport MAX ESC8995 SM-4ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 BaR Bearing Conversion 1 Futaba695 BBC-3 Ball Bearing Conversion 4 Airtronics2595 BBC-4 Ball Bearing Conversion 1 -Airtronics695 BBC-5 Ball Bearing Only JR etr 41995 BBC-6 Ball Bearing Only JR etc 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire -3 cond 10- Fut JR Colors800 #22 Battery Wire -2 conductor 10600 EMS/SANYO Battery PacksCALL EMS Connectors ExtensionsC4LL April 1999 81 Additional EMS Jomar Products pieces bond medium CyA accelerator blade should project out plywood slightly half depth hinges being used Placing structure slotted flat surface use tool gradually cut level slots sliding along surface Hinges molded milk bottle polypropylene recommended become brittle time tear easily flexible joint kit supplies hinges thrnw away Two-part molded hinges available sizes ranging fmm small A-appropriate units large extra-thick ones suitable Giant Scale models molded nylon two parts joined metal pin cotter key Some manufacturers supply hinges prepinned others require builder install pin bend non-headed end clip off excess Installation similar laminated hinge technique just described except molded hinges require wider slots clearance banel portion should installed slow-cure epoxy Under no circumstance should CyA cellulose cement used Hinge-slotting kits sold several manufacturers greatly simplify installation two-pail molded hinges Included centerline marker slotting tool digger widening slot slots must have considerably material removed laminated hinges #11 blade double-pointed blade hinge kit used cut guide slot digger used pick Out wood covering material some wood should removed slot allow banel portion hinge fit inside surface pinned portion midline reduces gap Trial-fit hinges temporarily join surfaces Adjust again free non-binding movement some builders install units aliphatic resinand hinge flanges have perforations allow adhesive form nails through themthe aliphatic requires air dry being asked nearly airless envimnment use slow-cure epoxy molded hinges melt some petanleum jelly VaselineTM cap jar heat source heat gun used covering nearly ideal Dip movable section hinge melted jelly avoid getting flanges will go slots Inadvertent contamination flanges can cleaned alcohol Mix epoxy work some slots using scrap end hinge small spatula Coat hinge flanges using scrap wood toothpick tease some epoxy built-in holes flanges insert slots Remove extra epoxy alcohol rag Set everything aside epoxy cures usually necessary molded hinges can double-secured toothpick sections per preceding comments laminated hinges Hinge Points variation flat flanged molded hinges units inserted holes rather slots location marked pencil hole size recommended hinge point drilled wood hingeslotting kits include index guiding bit center wood hinges adhered hole using epoxy allphatic resin Much technique described molded hinges also applies hinge points avoid binding care must taken install hinge lines parallel long axis surface Hinges should permanently attached oniy after surfaces covered Slots can cut before after covering MonoKote Hinges Another hinging technique uses heat-shrink covering material adhered along thin line heat two pieces laid back-to-back material cut segments adhered previously covered surfaces Although hinges will work newer laminated hinges superior Matter Taste foregoing way hinging other techniques materials may work better other hand techniques described have stood test time worth consideration properly hinged model will fly smoothly will return neutral less opposite control will fly consistently flight flight will last much longer will provide flying fun 4Chapter #______ AMA#__________ MAAC Canada IMAA Membership Application wEl Renewal Lii FamilyLl Date_________ i Name I Address I City/Town State Province_________________________________ Zip Code___________________ I Phone_______________________________________________________[v33][b11402258134119400]]Fax____________________________________ _____________________[v33][b22662259134219410]]I TMAA#___________________________ I I I I I I I I I I____________________________________________________________[v32][b1146229811100]]__________________________________________ __________________[v32][b2237229912200]] I___________________________ I I I I I HF Summer98 J Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US Foreign Make Check Money Order payable International Miniature Aircraft Association r-l Any person flys resides United States must show proof membership Academy Model Aeronautics AMA order obtain IMAA membership Include copy AMA License number application L [7 Remittance Type Check El Money Order El Cashiers Check El 1 year El 2 years El 3 years El Amout $_______ Mail IMAA Secretary/Treasurer Don E Vineyard_______ 2055 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretary High Flight magazine printed quarterly mailed 2nd class Bulk Mail First class add $500 US Note First class mail faster delivery sealed envelope 82 Model Aviation
Edition: Model Aviation - 1999/04
Page Numbers: 79, 80, 81, 82
Edition: Model Aviation - 1999/04
Page Numbers: 79, 80, 81, 82
U DB Mathews ikZ L Lets discuss part construction common source trouble newcomers sometimes more-experienced builders Hinging movable surfaces Radio Control RC models too difficult anymore models seen huge spaces between halves gap surfaces bind moved surfaces level worst surfaces inadequately adhered model hinging problems limited homebuilt models frequently found acronym ARF [Almost-Ready-to-Fly] RTF [Ready-to-Fly] RTC [Ready-to-Cover] ARTC [Almost-Ready-to-Cover] etc group factory-built models Occasionally hinge installations poor its necessary cut off hinges redo early days escapement RC little power available rule thumb pushrod off surface should fall up down its own weight free movement also considered necessary Control Line CL models Common practice use section thin music wire imbedded its ends surface running inside section aluminum tube adhered other surface Alternately sections cloth adhered surfaces over-and-under patterna method still used often CL models considerable increase force modern servos no longer need hinges that free-moving still represents worthwhile goal following might old hat experienced modelers might pick up tidbit Ive hinged model two time am moment fully expect learn soon most-common problem new fliers airplanes hinging control surfaces RTF models have improperly factoryinstalled hinges Hinges should adhered strongly enough resist pulling surface given good tug ones fingers Surfaces should move freely binding run limits specified deflection Conversely space between mating halves surfaces should minimum improved efficiency Small gaps reduce amounts needed deflection reducing airflow through opening resulting smoother flights less stress servos linkages prevention flutter higher speeds ARF models hinges loose flow medium CyA cyanoacrylate glue slots gap excessive surfaces bind flexed may necessary cut hinges off flush both surfaces sharp modeling knife rehinge using products will mention Any rnbbing binding linkage between servo moving surfaces must corrected fly model airplane loose binding hinges Several classes hinges available selection somewhat function application small models thin surfaces April 1999 79 Materials make slotting tool installing hingesSandwich blade between plywood pieces glue medium CyA structure flat surface cut level slots hinge place Note corners have trimmed cannot successfully hinged large twopart molded units designed h-scale models vice versa Figure-Eight Hinges Ultraminiature models may require easy-to-make figure-8 hinges made kite cord Drill punch small holes opposite other wood Coat tip 24-inch length cord CyA shape tip point Lace cord back forth over undermuch like shoelacesinto snug figure-8 pattern between surfaces Feed last turn back through adjacent hole snug fit clip off cord coat area around holes thin CyA hinge must snug control surface will flap figure-8 hinges used models early days nothing else available worked nearly well now seen mainly tiny RC models Laminated Hinges Perhaps simplest type hinge install made laminating three layers tough plastic Identified modeling literature variety names ranging hot hinges brand names taking liberty coining own terms Available different names several manufacturers some recent kits include hinges hardware packages However installed basically same manner outer two layers hinge absorbent wicking material usually chemically treated encourage thin CyA flow soak hinge surrounding wood way inside inner core flexible very strong MylarTM Small 02-06 models surfaces thin /32 can hinged layered hinges cut smaller sections other extreme hinges can used large models applied double width multiple spots hinge lines Laminated hinges designed adhered thin CvA use other adhesive apply hinges 1 pencil draw centerline surfaces hinged Mark locations referring kits plans 2 Using modeling knife fresh #11 blade carefully cut shallow slit hinge location marks first slits should shallow serve guide subsequent deeper cuts slit should slightly wider actual hinge 3 Make three four additional cuts same line going deeper time Concentrate staying slit keeping blade headed center wood avoid having blade penetrate top bottom piece Use wiggling motion knife handle rather attempting entire slice continuous motion Using small cuts continue until slot about /2-inch deep 4 After required slots have cut clip square corners off hinges scissors push test hinge slot check difficulty pushing necessary reinsert blade move back forth few times recheck hinge Avoid creating too much space may allow good adhesion future reason hinge slot tools mentioned later satisfactory use laminated hinges 5 Carefully test-fit surfaces sliding onto hinges Installing surface carefully wiggling other surface angle over hinges starting end working other usually works better attempting push everything together straight Occasionally hinge surface will slide too far structure opposing surface slid instance 80 Model Aviation SCALE CATALOGS SPPS16osu~eCononPIs$500 SPPS 12OOfl Doajaentaton Photm 3Vs$500 ASP ModeLAJrraftComton Plans$500 ASP SiePJrmft Drawrus 3Vs$500 WACO YMF-5 1/4 Scale 90 Plans $3500 VaMC Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave Greensboro NC 27403 PHONE/FAX 336-292-5239 pin can stuck through hold place hinges creased bent toss almost impossible use crooked 6 create proper gap between parts deflect control surface maximum amount needed surfaces close together possible will automatically set proper hinge gap everything functions well remove surfaces cover 7 Once covered relocate previously prepared slots cut through covering material remove about 6 around slot will assure flow thin CyA hinge surrounding wood possibility covering material creating dam slot 8 Put three four drops thin CyA hinge gap Applicator tips such Sig SH-10220 greatly simplify delivery small amounts runoff adhesive will quickly wick slot penetrates wood hinge surface Continue dropping adhesive onto top bottom hinge surface until have adhered Excess CyA can removed rag saturated debonder 9 Make application CyA Additional adhesive will puddle middle hinge gap can weaken hinge produce dislodging forces fear adhesive has penetrated well drill small holes through both surfaces wood hinges push sections round toothpicks tightly holes trim excess toenail clipper wick thin CyA onto toothpick sections Never use accelerator installing hinges 10 Allow everything cure five minutes flex surfaces up down may hit stiffness joint first will go away additional flexing simple useful slotting tool developed Ace RJC staff Whiz 40 kit can made scrap plywood half thickness surface stabilizer -inch material use 1/8 plywood Cut plywood two 1- x 1-inch squares Sandwich sharp #11 blade between BILL EFFINGER* SAYSI hose just added hooard OGA 15 rrrn lice P1000 Partero Sets kOOW yasijo Ii lil ill 7/6 Scale HOWARD DGA-15 40 78 CID erroises 76 sospos verall leOglir 5 lbs less h/C 4/5 Oh h/C otPlvoaood Corlstractlorl OCOSt51890 Prices oe complete tull size pions & derailed ports lists PLEASE ADD$490 shipping mailing tabe Seed $100 Fe Pb Sets bochwe mitts 60 Ptann Poffes, Sets EMS SERVO REVERSER Worko AM FM PCM radios 4 5 cells lastall line servo servo will move lathe opposite direction 5 o 175 v 25 weight 25 ounce EMS SR-2 connector $1495 wired connectars $1995 EMS SR-2Y wired leg ot Y harness tur $2250 GEARAND DOOR SEQUENCER microprocessor driver device controls sequences landing gear mechanism landing gear doors Works air and/or servo controlled systems Gear servo door servo travel time individually adjustable full speed 10 secoods Gear doors may remain open ala P-47 close utter lowering gnar ala P-Si Gear doesnt muve until doors travel fully completed unit must retract system Size 15 x 15 75 Less 1 ounce Includes servo connector receiver $4495 Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllarnesa GS-1Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight limer2995 NEW Stop-Go-Light0M2495 Gear Door Cycler3495 Channel Failsafe3895 Opto-Isolateri Electronic Switch3995 Dual E-S witch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Morie Electronic Mixer4495 Glitch Buster/6 Channel Opto -Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor Ultralight ESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yorba Linda C4 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom ONN W M M H ARPLANE VERSION $3995 HELICOPTER VERSION $4495 Pa k 5ppg & 5Os ThWui S 6924i/OZodTolsaOK74r33-5350 FaaqlO4qO-9375 Z MATE BAITERY BACKER BEST way insure reliable power model Use two packs Works standard 4 cell S cell GEL-CELL packs Battery packs can different capacity likes 1200 600 1 5 o 15 v 75 weight 8 ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolated gluw driver switch ensures against radio noise ON point easily adjustable user small screwdriver Size 15 v 15 v 75 Less 1 ounce Supplied glow-plug wire connector User supplies own NICAG battery Includes servo connector receiver $4495 NEW MiniM4X 40 ESC w/BEC Brake$9995 MiniMAX Original ESC WI Brake7995 Sport MAX ESC8995 SM-4ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 BaR Bearing Conversion 1 Futaba695 BBC-3 Ball Bearing Conversion 4 Airtronics2595 BBC-4 Ball Bearing Conversion 1 -Airtronics695 BBC-5 Ball Bearing Only JR etr 41995 BBC-6 Ball Bearing Only JR etc 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire -3 cond 10- Fut JR Colors800 #22 Battery Wire -2 conductor 10600 EMS/SANYO Battery PacksCALL EMS Connectors ExtensionsC4LL April 1999 81 Additional EMS Jomar Products pieces bond medium CyA accelerator blade should project out plywood slightly half depth hinges being used Placing structure slotted flat surface use tool gradually cut level slots sliding along surface Hinges molded milk bottle polypropylene recommended become brittle time tear easily flexible joint kit supplies hinges thrnw away Two-part molded hinges available sizes ranging fmm small A-appropriate units large extra-thick ones suitable Giant Scale models molded nylon two parts joined metal pin cotter key Some manufacturers supply hinges prepinned others require builder install pin bend non-headed end clip off excess Installation similar laminated hinge technique just described except molded hinges require wider slots clearance banel portion should installed slow-cure epoxy Under no circumstance should CyA cellulose cement used Hinge-slotting kits sold several manufacturers greatly simplify installation two-pail molded hinges Included centerline marker slotting tool digger widening slot slots must have considerably material removed laminated hinges #11 blade double-pointed blade hinge kit used cut guide slot digger used pick Out wood covering material some wood should removed slot allow banel portion hinge fit inside surface pinned portion midline reduces gap Trial-fit hinges temporarily join surfaces Adjust again free non-binding movement some builders install units aliphatic resinand hinge flanges have perforations allow adhesive form nails through themthe aliphatic requires air dry being asked nearly airless envimnment use slow-cure epoxy molded hinges melt some petanleum jelly VaselineTM cap jar heat source heat gun used covering nearly ideal Dip movable section hinge melted jelly avoid getting flanges will go slots Inadvertent contamination flanges can cleaned alcohol Mix epoxy work some slots using scrap end hinge small spatula Coat hinge flanges using scrap wood toothpick tease some epoxy built-in holes flanges insert slots Remove extra epoxy alcohol rag Set everything aside epoxy cures usually necessary molded hinges can double-secured toothpick sections per preceding comments laminated hinges Hinge Points variation flat flanged molded hinges units inserted holes rather slots location marked pencil hole size recommended hinge point drilled wood hingeslotting kits include index guiding bit center wood hinges adhered hole using epoxy allphatic resin Much technique described molded hinges also applies hinge points avoid binding care must taken install hinge lines parallel long axis surface Hinges should permanently attached oniy after surfaces covered Slots can cut before after covering MonoKote Hinges Another hinging technique uses heat-shrink covering material adhered along thin line heat two pieces laid back-to-back material cut segments adhered previously covered surfaces Although hinges will work newer laminated hinges superior Matter Taste foregoing way hinging other techniques materials may work better other hand techniques described have stood test time worth consideration properly hinged model will fly smoothly will return neutral less opposite control will fly consistently flight flight will last much longer will provide flying fun 4Chapter #______ AMA#__________ MAAC Canada IMAA Membership Application wEl Renewal Lii FamilyLl Date_________ i Name I Address I City/Town State Province_________________________________ Zip Code___________________ I Phone_______________________________________________________[v33][b11402258134119400]]Fax____________________________________ _____________________[v33][b22662259134219410]]I TMAA#___________________________ I I I I I I I I I I____________________________________________________________[v32][b1146229811100]]__________________________________________ __________________[v32][b2237229912200]] I___________________________ I I I I I HF Summer98 J Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US Foreign Make Check Money Order payable International Miniature Aircraft Association r-l Any person flys resides United States must show proof membership Academy Model Aeronautics AMA order obtain IMAA membership Include copy AMA License number application L [7 Remittance Type Check El Money Order El Cashiers Check El 1 year El 2 years El 3 years El Amout $_______ Mail IMAA Secretary/Treasurer Don E Vineyard_______ 2055 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretary High Flight magazine printed quarterly mailed 2nd class Bulk Mail First class add $500 US Note First class mail faster delivery sealed envelope 82 Model Aviation
Edition: Model Aviation - 1999/04
Page Numbers: 79, 80, 81, 82
U DB Mathews ikZ L Lets discuss part construction common source trouble newcomers sometimes more-experienced builders Hinging movable surfaces Radio Control RC models too difficult anymore models seen huge spaces between halves gap surfaces bind moved surfaces level worst surfaces inadequately adhered model hinging problems limited homebuilt models frequently found acronym ARF [Almost-Ready-to-Fly] RTF [Ready-to-Fly] RTC [Ready-to-Cover] ARTC [Almost-Ready-to-Cover] etc group factory-built models Occasionally hinge installations poor its necessary cut off hinges redo early days escapement RC little power available rule thumb pushrod off surface should fall up down its own weight free movement also considered necessary Control Line CL models Common practice use section thin music wire imbedded its ends surface running inside section aluminum tube adhered other surface Alternately sections cloth adhered surfaces over-and-under patterna method still used often CL models considerable increase force modern servos no longer need hinges that free-moving still represents worthwhile goal following might old hat experienced modelers might pick up tidbit Ive hinged model two time am moment fully expect learn soon most-common problem new fliers airplanes hinging control surfaces RTF models have improperly factoryinstalled hinges Hinges should adhered strongly enough resist pulling surface given good tug ones fingers Surfaces should move freely binding run limits specified deflection Conversely space between mating halves surfaces should minimum improved efficiency Small gaps reduce amounts needed deflection reducing airflow through opening resulting smoother flights less stress servos linkages prevention flutter higher speeds ARF models hinges loose flow medium CyA cyanoacrylate glue slots gap excessive surfaces bind flexed may necessary cut hinges off flush both surfaces sharp modeling knife rehinge using products will mention Any rnbbing binding linkage between servo moving surfaces must corrected fly model airplane loose binding hinges Several classes hinges available selection somewhat function application small models thin surfaces April 1999 79 Materials make slotting tool installing hingesSandwich blade between plywood pieces glue medium CyA structure flat surface cut level slots hinge place Note corners have trimmed cannot successfully hinged large twopart molded units designed h-scale models vice versa Figure-Eight Hinges Ultraminiature models may require easy-to-make figure-8 hinges made kite cord Drill punch small holes opposite other wood Coat tip 24-inch length cord CyA shape tip point Lace cord back forth over undermuch like shoelacesinto snug figure-8 pattern between surfaces Feed last turn back through adjacent hole snug fit clip off cord coat area around holes thin CyA hinge must snug control surface will flap figure-8 hinges used models early days nothing else available worked nearly well now seen mainly tiny RC models Laminated Hinges Perhaps simplest type hinge install made laminating three layers tough plastic Identified modeling literature variety names ranging hot hinges brand names taking liberty coining own terms Available different names several manufacturers some recent kits include hinges hardware packages However installed basically same manner outer two layers hinge absorbent wicking material usually chemically treated encourage thin CyA flow soak hinge surrounding wood way inside inner core flexible very strong MylarTM Small 02-06 models surfaces thin /32 can hinged layered hinges cut smaller sections other extreme hinges can used large models applied double width multiple spots hinge lines Laminated hinges designed adhered thin CvA use other adhesive apply hinges 1 pencil draw centerline surfaces hinged Mark locations referring kits plans 2 Using modeling knife fresh #11 blade carefully cut shallow slit hinge location marks first slits should shallow serve guide subsequent deeper cuts slit should slightly wider actual hinge 3 Make three four additional cuts same line going deeper time Concentrate staying slit keeping blade headed center wood avoid having blade penetrate top bottom piece Use wiggling motion knife handle rather attempting entire slice continuous motion Using small cuts continue until slot about /2-inch deep 4 After required slots have cut clip square corners off hinges scissors push test hinge slot check difficulty pushing necessary reinsert blade move back forth few times recheck hinge Avoid creating too much space may allow good adhesion future reason hinge slot tools mentioned later satisfactory use laminated hinges 5 Carefully test-fit surfaces sliding onto hinges Installing surface carefully wiggling other surface angle over hinges starting end working other usually works better attempting push everything together straight Occasionally hinge surface will slide too far structure opposing surface slid instance 80 Model Aviation SCALE CATALOGS SPPS16osu~eCononPIs$500 SPPS 12OOfl Doajaentaton Photm 3Vs$500 ASP ModeLAJrraftComton Plans$500 ASP SiePJrmft Drawrus 3Vs$500 WACO YMF-5 1/4 Scale 90 Plans $3500 VaMC Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave Greensboro NC 27403 PHONE/FAX 336-292-5239 pin can stuck through hold place hinges creased bent toss almost impossible use crooked 6 create proper gap between parts deflect control surface maximum amount needed surfaces close together possible will automatically set proper hinge gap everything functions well remove surfaces cover 7 Once covered relocate previously prepared slots cut through covering material remove about 6 around slot will assure flow thin CyA hinge surrounding wood possibility covering material creating dam slot 8 Put three four drops thin CyA hinge gap Applicator tips such Sig SH-10220 greatly simplify delivery small amounts runoff adhesive will quickly wick slot penetrates wood hinge surface Continue dropping adhesive onto top bottom hinge surface until have adhered Excess CyA can removed rag saturated debonder 9 Make application CyA Additional adhesive will puddle middle hinge gap can weaken hinge produce dislodging forces fear adhesive has penetrated well drill small holes through both surfaces wood hinges push sections round toothpicks tightly holes trim excess toenail clipper wick thin CyA onto toothpick sections Never use accelerator installing hinges 10 Allow everything cure five minutes flex surfaces up down may hit stiffness joint first will go away additional flexing simple useful slotting tool developed Ace RJC staff Whiz 40 kit can made scrap plywood half thickness surface stabilizer -inch material use 1/8 plywood Cut plywood two 1- x 1-inch squares Sandwich sharp #11 blade between BILL EFFINGER* SAYSI hose just added hooard OGA 15 rrrn lice P1000 Partero Sets kOOW yasijo Ii lil ill 7/6 Scale HOWARD DGA-15 40 78 CID erroises 76 sospos verall leOglir 5 lbs less h/C 4/5 Oh h/C otPlvoaood Corlstractlorl OCOSt51890 Prices oe complete tull size pions & derailed ports lists PLEASE ADD$490 shipping mailing tabe Seed $100 Fe Pb Sets bochwe mitts 60 Ptann Poffes, Sets EMS SERVO REVERSER Worko AM FM PCM radios 4 5 cells lastall line servo servo will move lathe opposite direction 5 o 175 v 25 weight 25 ounce EMS SR-2 connector $1495 wired connectars $1995 EMS SR-2Y wired leg ot Y harness tur $2250 GEARAND DOOR SEQUENCER microprocessor driver device controls sequences landing gear mechanism landing gear doors Works air and/or servo controlled systems Gear servo door servo travel time individually adjustable full speed 10 secoods Gear doors may remain open ala P-47 close utter lowering gnar ala P-Si Gear doesnt muve until doors travel fully completed unit must retract system Size 15 x 15 75 Less 1 ounce Includes servo connector receiver $4495 Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllarnesa GS-1Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight limer2995 NEW Stop-Go-Light0M2495 Gear Door Cycler3495 Channel Failsafe3895 Opto-Isolateri Electronic Switch3995 Dual E-S witch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Morie Electronic Mixer4495 Glitch Buster/6 Channel Opto -Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor Ultralight ESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yorba Linda C4 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom ONN W M M H ARPLANE VERSION $3995 HELICOPTER VERSION $4495 Pa k 5ppg & 5Os ThWui S 6924i/OZodTolsaOK74r33-5350 FaaqlO4qO-9375 Z MATE BAITERY BACKER BEST way insure reliable power model Use two packs Works standard 4 cell S cell GEL-CELL packs Battery packs can different capacity likes 1200 600 1 5 o 15 v 75 weight 8 ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolated gluw driver switch ensures against radio noise ON point easily adjustable user small screwdriver Size 15 v 15 v 75 Less 1 ounce Supplied glow-plug wire connector User supplies own NICAG battery Includes servo connector receiver $4495 NEW MiniM4X 40 ESC w/BEC Brake$9995 MiniMAX Original ESC WI Brake7995 Sport MAX ESC8995 SM-4ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 BaR Bearing Conversion 1 Futaba695 BBC-3 Ball Bearing Conversion 4 Airtronics2595 BBC-4 Ball Bearing Conversion 1 -Airtronics695 BBC-5 Ball Bearing Only JR etr 41995 BBC-6 Ball Bearing Only JR etc 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire -3 cond 10- Fut JR Colors800 #22 Battery Wire -2 conductor 10600 EMS/SANYO Battery PacksCALL EMS Connectors ExtensionsC4LL April 1999 81 Additional EMS Jomar Products pieces bond medium CyA accelerator blade should project out plywood slightly half depth hinges being used Placing structure slotted flat surface use tool gradually cut level slots sliding along surface Hinges molded milk bottle polypropylene recommended become brittle time tear easily flexible joint kit supplies hinges thrnw away Two-part molded hinges available sizes ranging fmm small A-appropriate units large extra-thick ones suitable Giant Scale models molded nylon two parts joined metal pin cotter key Some manufacturers supply hinges prepinned others require builder install pin bend non-headed end clip off excess Installation similar laminated hinge technique just described except molded hinges require wider slots clearance banel portion should installed slow-cure epoxy Under no circumstance should CyA cellulose cement used Hinge-slotting kits sold several manufacturers greatly simplify installation two-pail molded hinges Included centerline marker slotting tool digger widening slot slots must have considerably material removed laminated hinges #11 blade double-pointed blade hinge kit used cut guide slot digger used pick Out wood covering material some wood should removed slot allow banel portion hinge fit inside surface pinned portion midline reduces gap Trial-fit hinges temporarily join surfaces Adjust again free non-binding movement some builders install units aliphatic resinand hinge flanges have perforations allow adhesive form nails through themthe aliphatic requires air dry being asked nearly airless envimnment use slow-cure epoxy molded hinges melt some petanleum jelly VaselineTM cap jar heat source heat gun used covering nearly ideal Dip movable section hinge melted jelly avoid getting flanges will go slots Inadvertent contamination flanges can cleaned alcohol Mix epoxy work some slots using scrap end hinge small spatula Coat hinge flanges using scrap wood toothpick tease some epoxy built-in holes flanges insert slots Remove extra epoxy alcohol rag Set everything aside epoxy cures usually necessary molded hinges can double-secured toothpick sections per preceding comments laminated hinges Hinge Points variation flat flanged molded hinges units inserted holes rather slots location marked pencil hole size recommended hinge point drilled wood hingeslotting kits include index guiding bit center wood hinges adhered hole using epoxy allphatic resin Much technique described molded hinges also applies hinge points avoid binding care must taken install hinge lines parallel long axis surface Hinges should permanently attached oniy after surfaces covered Slots can cut before after covering MonoKote Hinges Another hinging technique uses heat-shrink covering material adhered along thin line heat two pieces laid back-to-back material cut segments adhered previously covered surfaces Although hinges will work newer laminated hinges superior Matter Taste foregoing way hinging other techniques materials may work better other hand techniques described have stood test time worth consideration properly hinged model will fly smoothly will return neutral less opposite control will fly consistently flight flight will last much longer will provide flying fun 4Chapter #______ AMA#__________ MAAC Canada IMAA Membership Application wEl Renewal Lii FamilyLl Date_________ i Name I Address I City/Town State Province_________________________________ Zip Code___________________ I Phone_______________________________________________________[v33][b11402258134119400]]Fax____________________________________ _____________________[v33][b22662259134219410]]I TMAA#___________________________ I I I I I I I I I I____________________________________________________________[v32][b1146229811100]]__________________________________________ __________________[v32][b2237229912200]] I___________________________ I I I I I HF Summer98 J Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US Foreign Make Check Money Order payable International Miniature Aircraft Association r-l Any person flys resides United States must show proof membership Academy Model Aeronautics AMA order obtain IMAA membership Include copy AMA License number application L [7 Remittance Type Check El Money Order El Cashiers Check El 1 year El 2 years El 3 years El Amout $_______ Mail IMAA Secretary/Treasurer Don E Vineyard_______ 2055 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretary High Flight magazine printed quarterly mailed 2nd class Bulk Mail First class add $500 US Note First class mail faster delivery sealed envelope 82 Model Aviation
Edition: Model Aviation - 1999/04
Page Numbers: 79, 80, 81, 82
U DB Mathews ikZ L Lets discuss part construction common source trouble newcomers sometimes more-experienced builders Hinging movable surfaces Radio Control RC models too difficult anymore models seen huge spaces between halves gap surfaces bind moved surfaces level worst surfaces inadequately adhered model hinging problems limited homebuilt models frequently found acronym ARF [Almost-Ready-to-Fly] RTF [Ready-to-Fly] RTC [Ready-to-Cover] ARTC [Almost-Ready-to-Cover] etc group factory-built models Occasionally hinge installations poor its necessary cut off hinges redo early days escapement RC little power available rule thumb pushrod off surface should fall up down its own weight free movement also considered necessary Control Line CL models Common practice use section thin music wire imbedded its ends surface running inside section aluminum tube adhered other surface Alternately sections cloth adhered surfaces over-and-under patterna method still used often CL models considerable increase force modern servos no longer need hinges that free-moving still represents worthwhile goal following might old hat experienced modelers might pick up tidbit Ive hinged model two time am moment fully expect learn soon most-common problem new fliers airplanes hinging control surfaces RTF models have improperly factoryinstalled hinges Hinges should adhered strongly enough resist pulling surface given good tug ones fingers Surfaces should move freely binding run limits specified deflection Conversely space between mating halves surfaces should minimum improved efficiency Small gaps reduce amounts needed deflection reducing airflow through opening resulting smoother flights less stress servos linkages prevention flutter higher speeds ARF models hinges loose flow medium CyA cyanoacrylate glue slots gap excessive surfaces bind flexed may necessary cut hinges off flush both surfaces sharp modeling knife rehinge using products will mention Any rnbbing binding linkage between servo moving surfaces must corrected fly model airplane loose binding hinges Several classes hinges available selection somewhat function application small models thin surfaces April 1999 79 Materials make slotting tool installing hingesSandwich blade between plywood pieces glue medium CyA structure flat surface cut level slots hinge place Note corners have trimmed cannot successfully hinged large twopart molded units designed h-scale models vice versa Figure-Eight Hinges Ultraminiature models may require easy-to-make figure-8 hinges made kite cord Drill punch small holes opposite other wood Coat tip 24-inch length cord CyA shape tip point Lace cord back forth over undermuch like shoelacesinto snug figure-8 pattern between surfaces Feed last turn back through adjacent hole snug fit clip off cord coat area around holes thin CyA hinge must snug control surface will flap figure-8 hinges used models early days nothing else available worked nearly well now seen mainly tiny RC models Laminated Hinges Perhaps simplest type hinge install made laminating three layers tough plastic Identified modeling literature variety names ranging hot hinges brand names taking liberty coining own terms Available different names several manufacturers some recent kits include hinges hardware packages However installed basically same manner outer two layers hinge absorbent wicking material usually chemically treated encourage thin CyA flow soak hinge surrounding wood way inside inner core flexible very strong MylarTM Small 02-06 models surfaces thin /32 can hinged layered hinges cut smaller sections other extreme hinges can used large models applied double width multiple spots hinge lines Laminated hinges designed adhered thin CvA use other adhesive apply hinges 1 pencil draw centerline surfaces hinged Mark locations referring kits plans 2 Using modeling knife fresh #11 blade carefully cut shallow slit hinge location marks first slits should shallow serve guide subsequent deeper cuts slit should slightly wider actual hinge 3 Make three four additional cuts same line going deeper time Concentrate staying slit keeping blade headed center wood avoid having blade penetrate top bottom piece Use wiggling motion knife handle rather attempting entire slice continuous motion Using small cuts continue until slot about /2-inch deep 4 After required slots have cut clip square corners off hinges scissors push test hinge slot check difficulty pushing necessary reinsert blade move back forth few times recheck hinge Avoid creating too much space may allow good adhesion future reason hinge slot tools mentioned later satisfactory use laminated hinges 5 Carefully test-fit surfaces sliding onto hinges Installing surface carefully wiggling other surface angle over hinges starting end working other usually works better attempting push everything together straight Occasionally hinge surface will slide too far structure opposing surface slid instance 80 Model Aviation SCALE CATALOGS SPPS16osu~eCononPIs$500 SPPS 12OOfl Doajaentaton Photm 3Vs$500 ASP ModeLAJrraftComton Plans$500 ASP SiePJrmft Drawrus 3Vs$500 WACO YMF-5 1/4 Scale 90 Plans $3500 VaMC Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave Greensboro NC 27403 PHONE/FAX 336-292-5239 pin can stuck through hold place hinges creased bent toss almost impossible use crooked 6 create proper gap between parts deflect control surface maximum amount needed surfaces close together possible will automatically set proper hinge gap everything functions well remove surfaces cover 7 Once covered relocate previously prepared slots cut through covering material remove about 6 around slot will assure flow thin CyA hinge surrounding wood possibility covering material creating dam slot 8 Put three four drops thin CyA hinge gap Applicator tips such Sig SH-10220 greatly simplify delivery small amounts runoff adhesive will quickly wick slot penetrates wood hinge surface Continue dropping adhesive onto top bottom hinge surface until have adhered Excess CyA can removed rag saturated debonder 9 Make application CyA Additional adhesive will puddle middle hinge gap can weaken hinge produce dislodging forces fear adhesive has penetrated well drill small holes through both surfaces wood hinges push sections round toothpicks tightly holes trim excess toenail clipper wick thin CyA onto toothpick sections Never use accelerator installing hinges 10 Allow everything cure five minutes flex surfaces up down may hit stiffness joint first will go away additional flexing simple useful slotting tool developed Ace RJC staff Whiz 40 kit can made scrap plywood half thickness surface stabilizer -inch material use 1/8 plywood Cut plywood two 1- x 1-inch squares Sandwich sharp #11 blade between BILL EFFINGER* SAYSI hose just added hooard OGA 15 rrrn lice P1000 Partero Sets kOOW yasijo Ii lil ill 7/6 Scale HOWARD DGA-15 40 78 CID erroises 76 sospos verall leOglir 5 lbs less h/C 4/5 Oh h/C otPlvoaood Corlstractlorl OCOSt51890 Prices oe complete tull size pions & derailed ports lists PLEASE ADD$490 shipping mailing tabe Seed $100 Fe Pb Sets bochwe mitts 60 Ptann Poffes, Sets EMS SERVO REVERSER Worko AM FM PCM radios 4 5 cells lastall line servo servo will move lathe opposite direction 5 o 175 v 25 weight 25 ounce EMS SR-2 connector $1495 wired connectars $1995 EMS SR-2Y wired leg ot Y harness tur $2250 GEARAND DOOR SEQUENCER microprocessor driver device controls sequences landing gear mechanism landing gear doors Works air and/or servo controlled systems Gear servo door servo travel time individually adjustable full speed 10 secoods Gear doors may remain open ala P-47 close utter lowering gnar ala P-Si Gear doesnt muve until doors travel fully completed unit must retract system Size 15 x 15 75 Less 1 ounce Includes servo connector receiver $4495 Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllarnesa GS-1Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight limer2995 NEW Stop-Go-Light0M2495 Gear Door Cycler3495 Channel Failsafe3895 Opto-Isolateri Electronic Switch3995 Dual E-S witch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Morie Electronic Mixer4495 Glitch Buster/6 Channel Opto -Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor Ultralight ESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yorba Linda C4 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom ONN W M M H ARPLANE VERSION $3995 HELICOPTER VERSION $4495 Pa k 5ppg & 5Os ThWui S 6924i/OZodTolsaOK74r33-5350 FaaqlO4qO-9375 Z MATE BAITERY BACKER BEST way insure reliable power model Use two packs Works standard 4 cell S cell GEL-CELL packs Battery packs can different capacity likes 1200 600 1 5 o 15 v 75 weight 8 ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolated gluw driver switch ensures against radio noise ON point easily adjustable user small screwdriver Size 15 v 15 v 75 Less 1 ounce Supplied glow-plug wire connector User supplies own NICAG battery Includes servo connector receiver $4495 NEW MiniM4X 40 ESC w/BEC Brake$9995 MiniMAX Original ESC WI Brake7995 Sport MAX ESC8995 SM-4ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 BaR Bearing Conversion 1 Futaba695 BBC-3 Ball Bearing Conversion 4 Airtronics2595 BBC-4 Ball Bearing Conversion 1 -Airtronics695 BBC-5 Ball Bearing Only JR etr 41995 BBC-6 Ball Bearing Only JR etc 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire -3 cond 10- Fut JR Colors800 #22 Battery Wire -2 conductor 10600 EMS/SANYO Battery PacksCALL EMS Connectors ExtensionsC4LL April 1999 81 Additional EMS Jomar Products pieces bond medium CyA accelerator blade should project out plywood slightly half depth hinges being used Placing structure slotted flat surface use tool gradually cut level slots sliding along surface Hinges molded milk bottle polypropylene recommended become brittle time tear easily flexible joint kit supplies hinges thrnw away Two-part molded hinges available sizes ranging fmm small A-appropriate units large extra-thick ones suitable Giant Scale models molded nylon two parts joined metal pin cotter key Some manufacturers supply hinges prepinned others require builder install pin bend non-headed end clip off excess Installation similar laminated hinge technique just described except molded hinges require wider slots clearance banel portion should installed slow-cure epoxy Under no circumstance should CyA cellulose cement used Hinge-slotting kits sold several manufacturers greatly simplify installation two-pail molded hinges Included centerline marker slotting tool digger widening slot slots must have considerably material removed laminated hinges #11 blade double-pointed blade hinge kit used cut guide slot digger used pick Out wood covering material some wood should removed slot allow banel portion hinge fit inside surface pinned portion midline reduces gap Trial-fit hinges temporarily join surfaces Adjust again free non-binding movement some builders install units aliphatic resinand hinge flanges have perforations allow adhesive form nails through themthe aliphatic requires air dry being asked nearly airless envimnment use slow-cure epoxy molded hinges melt some petanleum jelly VaselineTM cap jar heat source heat gun used covering nearly ideal Dip movable section hinge melted jelly avoid getting flanges will go slots Inadvertent contamination flanges can cleaned alcohol Mix epoxy work some slots using scrap end hinge small spatula Coat hinge flanges using scrap wood toothpick tease some epoxy built-in holes flanges insert slots Remove extra epoxy alcohol rag Set everything aside epoxy cures usually necessary molded hinges can double-secured toothpick sections per preceding comments laminated hinges Hinge Points variation flat flanged molded hinges units inserted holes rather slots location marked pencil hole size recommended hinge point drilled wood hingeslotting kits include index guiding bit center wood hinges adhered hole using epoxy allphatic resin Much technique described molded hinges also applies hinge points avoid binding care must taken install hinge lines parallel long axis surface Hinges should permanently attached oniy after surfaces covered Slots can cut before after covering MonoKote Hinges Another hinging technique uses heat-shrink covering material adhered along thin line heat two pieces laid back-to-back material cut segments adhered previously covered surfaces Although hinges will work newer laminated hinges superior Matter Taste foregoing way hinging other techniques materials may work better other hand techniques described have stood test time worth consideration properly hinged model will fly smoothly will return neutral less opposite control will fly consistently flight flight will last much longer will provide flying fun 4Chapter #______ AMA#__________ MAAC Canada IMAA Membership Application wEl Renewal Lii FamilyLl Date_________ i Name I Address I City/Town State Province_________________________________ Zip Code___________________ I Phone_______________________________________________________[v33][b11402258134119400]]Fax____________________________________ _____________________[v33][b22662259134219410]]I TMAA#___________________________ I I I I I I I I I I____________________________________________________________[v32][b1146229811100]]__________________________________________ __________________[v32][b2237229912200]] I___________________________ I I I I I HF Summer98 J Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US Foreign Make Check Money Order payable International Miniature Aircraft Association r-l Any person flys resides United States must show proof membership Academy Model Aeronautics AMA order obtain IMAA membership Include copy AMA License number application L [7 Remittance Type Check El Money Order El Cashiers Check El 1 year El 2 years El 3 years El Amout $_______ Mail IMAA Secretary/Treasurer Don E Vineyard_______ 2055 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretary High Flight magazine printed quarterly mailed 2nd class Bulk Mail First class add $500 US Note First class mail faster delivery sealed envelope 82 Model Aviation
