FREE FLIGHT DURATION U Y LAST half-dozen Wakefield wings have using composite D-box construction Basically consists very stiff carbon-fiber spar D-box shell either Keviar carbon precious little else trailing edge piece 030 /s inch carbon So 1/i6 thick balsa nbs end up glue joint thats about Y32 1As Thats much help hold trailing edge began using carbon fiber capstrips top bottom rib running spar back trailing edge Typically cap 003 inch thick carbon stripped 1A6 width Surprisingly capstrips didnt seem stiffen wing torsion sure made wing much durable best holds its adjustments warping World Championships opportunity examine several top Wakefields detail provided some additional information best use capstrips especially center dihedral break example reigning World Champion Alexander Andriukov uses 10mm wide cap center wing surprisingly no plywood root rib dihedral break uses 5mm wide balsa rib full-width carbon caps beveled HLG fashion accommodate dihedral Note photo routes out section top cap root mount hook rubber band holds two wing halves place also good visit WC Gall Gewain husband Matt off flying Nordic US team showed new 002 thickness carbon rib caps Besides being lighter 003 carbon using new stuff features textured surface side better adhesion 3 x 36 piece ultrathin carbon goes $8 plus shipping handling Composite Structures Technology PO Box 642 Tehachapi CA 93581-0642 Tel 800 338-1278 also have quite few other new items composite construction including precut carbon trailing edges carbon cloth Ive found best way use thin carbon rib caps cut piece three inches wide thats least quarter inch longer longest piece youll need Sharp scissors work fine Next sand lightly both sides fine sandpaper wipe paper towel dipped lacquer thinner After thinner has evaporated strip desired widthsay A6 inch take sharp singleedge razor blade glue hard balsa plywood spacer side blade about s/is back edge Next cut piece A6 plywood about size razor blade glue spacer lining up blade use like balsa stripper slice carbon strips width narrower wider capstrip make another stripper different thickness spacer best way attach caps use Pic brand CyA plastic models add bottom caps first soon take wing up off building jig before can manage break trailing edge off Its easiest put small drop CyA ribID-box juncture carefully position cap allowing overlap about 3A2 onto D-box Make sure cap lines up rib After CyA sets lift carbon strip run some CyA along top rib way back trailing edge quickly push capstrip down working front rear Some plastic wrap will keep finger becoming wing After CyA sets can simply break caps off rear carbon trailing edge balsa trailing edge youll better cut carbon sharp razor After bottom caps place carefully check make sure panel flat has desired washin washout After top caps place wing will stay just way build necessary cut through ribs just behind spar being careful cut bottom caps adjust panel desired wash Now top caps can added same manner weight gain Wakefield wing about 4 grams increased durability consistency well worth another advantage elimination need diagonal ribs using straight ribs works use very rigid D-box lightweight models can combine carbon-fiber capstrips diagonal ribs make wing both light strong British flier Phil Ball gives excellent account type construction article Composite Construction Methods Open Rubber 1993 Free Flight Experts Forum method shown sketch yields 31-gram weight covered 400-squareinch wing Ball begins positioning lower capstrips undercambered wing jig adding leading edge trailing edge spar Next come ribs followed top caps Note constructs spar single unit tip tip way Free Flight Experts Forum series excellent counterpoint own NFFS Sympos 1993 edition features article FlC engine tuning article rubber motors includes several circuit diagrams rubber heaters very timely article FlA flying reigning world champion Mike Fantham easiest way get copy contact Fred Terzian NFFS Publications 4858 Moorpark Ave San Jose CA 95129 Fred usually has some British publications available dont have go trouble international money order Best drop Fred line first see exactly what has stock might also ask about 1993 NFFS June1994 99 Les DeWitts FiB uses torque-operated wing flaps reduced drag burst Prototype future composite model Above right Tregubenkos flapped FiC model rather modest aspect ratio compared nonf lapped models Anodized aluminum over balsa skin BaloalsO 157 Md WI boa s LE 5 10SPAR 54TBx 10 WuLQ SBCTRJS RObS 5 lIght halocaps iso oaooos 1Tape Bottom Carbon Board 2Attach Spar LE & TB CynoBuilding Board 3Position Ribs Cyno 4Attach Top caps CynoThick Ply Blue Foal Hot Wired Shape Cover thin Polythene FF World Championships Plansbook Mike Achterberg editor Price should around $30 NFFS members $35 nonmembers Thats reason enough join National Free flight Society monthly NFFS Digest another join send $15 NFFS 19 Frederick Drive Newport News 23601 Ed Sullivan man charge memberships age 18 under cost $750 year Join today Another British publication deserving mention Book Flies Bob Bass Martin Dilly have put together very effective package should just thing give young person nudge hopeless lifelong addiction free flight book comes two Delta Dart kits about later cover features rather dramatic shot 1940s vintage Bob Copeland Wakefield book proceeds cover history free flight its early stages very much history aviation list early model fliers reads like Whos British aviation including Sir Richard Fairey Sir Thomas Sopwith Sir Frederick Handley Page Sir Geoffrey deHavilland Sir Sidney Camm designer Hawker Humcane book also points out Camm gave Bob Copeland first job aviation designing rear-view mirror Hurricane Copelands last job aviation Harrier jump-jet does bear marked resemblance earlier Wakefield designs book doesnt dwell past international classes covered detail action photographs 1991 World Championships well closeups typical models book does excellent job promoting free flight international sport book also includes detailed step-bystep instructions building flying Delta Dart kits best beginners book Ive seen free flight best books Ive seen subject Martin Dilly Bob Bass commended putting package together publisher Ebury Press also deserves thanks willingness spend money up front really first-class job dont know book will distributed country would worth trouble track down publishers address Ebury Press Ltd Random House 20 Vauxhall Bridge Road London SW1V 25A UK Les DeWitt sent along some photographs new Wakefield Knowing Less reputation innovative sometimes unorthodox designs wasnt surprised flapper wasnt really surprised learn Andriukov some other Ukrainian Wakefield fliers especially interested model saw have felt some time flaps next logical step improve Wake course talking about wing flaps vary camber wing during flight although nickname flapper does conjure up some vision FiB oriithopter Les has flying flappers least ten years won 1983 Free Flight Champs four-panel polyhederal flapper latest model though uses wing very long flapped inner panels short fixed tip panels Its almost like V-dihedral wing several power fliers have used flaps cam operated controlled motor torque flap starts moving down motor torque drops below 50 inchounces flap third wing chord Less next models will combine flaps carbon D-box added stiffness interested flappers comprehensive information 1992 NFFS Book Power Models Although designs power models title suggests some ideas mechanisms might work rubber well book also available Fred Terzian price $1950 plus $250 postage discussion flappers reminds last time talked Tom McLaughlan too sick make out World Champs very interested technology free flightespecially Ukrainian flapper saw Im sure Tommy laying bed working out design next power model head never got build Tom McLaughlan died November 1993 Tom master machinist basement machine shop prove among first use folding props FIC models always out mainstream made team twice back 1970s kept trying third team slot right up end dont think anybody fun 1992 Finals Lost Hills latest model going good outgliding models field dropped flight put him out contention team slot immediately started thinking about next time Tom llke though always thinking about future rather dwelling past will miss him Model Aviation Phil Balls Open Rubber wing combines familiar Union Jack construction carbon rib caps 400-squareinch wing weighs 31 grams World FiB champion Andriukovs wing shows extensive use carbon D-box molded carbon cloth over balsa ribs Latvias Sandis Roshonok shows typical modern FiB construction Finished 41st WC dad Viktors second
Edition: Model Aviation - 1994/06
Page Numbers: 99, 100
FREE FLIGHT DURATION U Y LAST half-dozen Wakefield wings have using composite D-box construction Basically consists very stiff carbon-fiber spar D-box shell either Keviar carbon precious little else trailing edge piece 030 /s inch carbon So 1/i6 thick balsa nbs end up glue joint thats about Y32 1As Thats much help hold trailing edge began using carbon fiber capstrips top bottom rib running spar back trailing edge Typically cap 003 inch thick carbon stripped 1A6 width Surprisingly capstrips didnt seem stiffen wing torsion sure made wing much durable best holds its adjustments warping World Championships opportunity examine several top Wakefields detail provided some additional information best use capstrips especially center dihedral break example reigning World Champion Alexander Andriukov uses 10mm wide cap center wing surprisingly no plywood root rib dihedral break uses 5mm wide balsa rib full-width carbon caps beveled HLG fashion accommodate dihedral Note photo routes out section top cap root mount hook rubber band holds two wing halves place also good visit WC Gall Gewain husband Matt off flying Nordic US team showed new 002 thickness carbon rib caps Besides being lighter 003 carbon using new stuff features textured surface side better adhesion 3 x 36 piece ultrathin carbon goes $8 plus shipping handling Composite Structures Technology PO Box 642 Tehachapi CA 93581-0642 Tel 800 338-1278 also have quite few other new items composite construction including precut carbon trailing edges carbon cloth Ive found best way use thin carbon rib caps cut piece three inches wide thats least quarter inch longer longest piece youll need Sharp scissors work fine Next sand lightly both sides fine sandpaper wipe paper towel dipped lacquer thinner After thinner has evaporated strip desired widthsay A6 inch take sharp singleedge razor blade glue hard balsa plywood spacer side blade about s/is back edge Next cut piece A6 plywood about size razor blade glue spacer lining up blade use like balsa stripper slice carbon strips width narrower wider capstrip make another stripper different thickness spacer best way attach caps use Pic brand CyA plastic models add bottom caps first soon take wing up off building jig before can manage break trailing edge off Its easiest put small drop CyA ribID-box juncture carefully position cap allowing overlap about 3A2 onto D-box Make sure cap lines up rib After CyA sets lift carbon strip run some CyA along top rib way back trailing edge quickly push capstrip down working front rear Some plastic wrap will keep finger becoming wing After CyA sets can simply break caps off rear carbon trailing edge balsa trailing edge youll better cut carbon sharp razor After bottom caps place carefully check make sure panel flat has desired washin washout After top caps place wing will stay just way build necessary cut through ribs just behind spar being careful cut bottom caps adjust panel desired wash Now top caps can added same manner weight gain Wakefield wing about 4 grams increased durability consistency well worth another advantage elimination need diagonal ribs using straight ribs works use very rigid D-box lightweight models can combine carbon-fiber capstrips diagonal ribs make wing both light strong British flier Phil Ball gives excellent account type construction article Composite Construction Methods Open Rubber 1993 Free Flight Experts Forum method shown sketch yields 31-gram weight covered 400-squareinch wing Ball begins positioning lower capstrips undercambered wing jig adding leading edge trailing edge spar Next come ribs followed top caps Note constructs spar single unit tip tip way Free Flight Experts Forum series excellent counterpoint own NFFS Sympos 1993 edition features article FlC engine tuning article rubber motors includes several circuit diagrams rubber heaters very timely article FlA flying reigning world champion Mike Fantham easiest way get copy contact Fred Terzian NFFS Publications 4858 Moorpark Ave San Jose CA 95129 Fred usually has some British publications available dont have go trouble international money order Best drop Fred line first see exactly what has stock might also ask about 1993 NFFS June1994 99 Les DeWitts FiB uses torque-operated wing flaps reduced drag burst Prototype future composite model Above right Tregubenkos flapped FiC model rather modest aspect ratio compared nonf lapped models Anodized aluminum over balsa skin BaloalsO 157 Md WI boa s LE 5 10SPAR 54TBx 10 WuLQ SBCTRJS RObS 5 lIght halocaps iso oaooos 1Tape Bottom Carbon Board 2Attach Spar LE & TB CynoBuilding Board 3Position Ribs Cyno 4Attach Top caps CynoThick Ply Blue Foal Hot Wired Shape Cover thin Polythene FF World Championships Plansbook Mike Achterberg editor Price should around $30 NFFS members $35 nonmembers Thats reason enough join National Free flight Society monthly NFFS Digest another join send $15 NFFS 19 Frederick Drive Newport News 23601 Ed Sullivan man charge memberships age 18 under cost $750 year Join today Another British publication deserving mention Book Flies Bob Bass Martin Dilly have put together very effective package should just thing give young person nudge hopeless lifelong addiction free flight book comes two Delta Dart kits about later cover features rather dramatic shot 1940s vintage Bob Copeland Wakefield book proceeds cover history free flight its early stages very much history aviation list early model fliers reads like Whos British aviation including Sir Richard Fairey Sir Thomas Sopwith Sir Frederick Handley Page Sir Geoffrey deHavilland Sir Sidney Camm designer Hawker Humcane book also points out Camm gave Bob Copeland first job aviation designing rear-view mirror Hurricane Copelands last job aviation Harrier jump-jet does bear marked resemblance earlier Wakefield designs book doesnt dwell past international classes covered detail action photographs 1991 World Championships well closeups typical models book does excellent job promoting free flight international sport book also includes detailed step-bystep instructions building flying Delta Dart kits best beginners book Ive seen free flight best books Ive seen subject Martin Dilly Bob Bass commended putting package together publisher Ebury Press also deserves thanks willingness spend money up front really first-class job dont know book will distributed country would worth trouble track down publishers address Ebury Press Ltd Random House 20 Vauxhall Bridge Road London SW1V 25A UK Les DeWitt sent along some photographs new Wakefield Knowing Less reputation innovative sometimes unorthodox designs wasnt surprised flapper wasnt really surprised learn Andriukov some other Ukrainian Wakefield fliers especially interested model saw have felt some time flaps next logical step improve Wake course talking about wing flaps vary camber wing during flight although nickname flapper does conjure up some vision FiB oriithopter Les has flying flappers least ten years won 1983 Free Flight Champs four-panel polyhederal flapper latest model though uses wing very long flapped inner panels short fixed tip panels Its almost like V-dihedral wing several power fliers have used flaps cam operated controlled motor torque flap starts moving down motor torque drops below 50 inchounces flap third wing chord Less next models will combine flaps carbon D-box added stiffness interested flappers comprehensive information 1992 NFFS Book Power Models Although designs power models title suggests some ideas mechanisms might work rubber well book also available Fred Terzian price $1950 plus $250 postage discussion flappers reminds last time talked Tom McLaughlan too sick make out World Champs very interested technology free flightespecially Ukrainian flapper saw Im sure Tommy laying bed working out design next power model head never got build Tom McLaughlan died November 1993 Tom master machinist basement machine shop prove among first use folding props FIC models always out mainstream made team twice back 1970s kept trying third team slot right up end dont think anybody fun 1992 Finals Lost Hills latest model going good outgliding models field dropped flight put him out contention team slot immediately started thinking about next time Tom llke though always thinking about future rather dwelling past will miss him Model Aviation Phil Balls Open Rubber wing combines familiar Union Jack construction carbon rib caps 400-squareinch wing weighs 31 grams World FiB champion Andriukovs wing shows extensive use carbon D-box molded carbon cloth over balsa ribs Latvias Sandis Roshonok shows typical modern FiB construction Finished 41st WC dad Viktors second