Control Line Aerobatics Ted Fancher ADVANCED CLASS Nats end last months column announced exis tence unofficial Advanced skill-class event held years Nats Lincoln NE July 12 through 18 Although no details time felt important word get out timely fashion Shortly after submitting column re ceived letter Rolland McDonald along Jack Sheeks spark plug behind endeavor Although details final able outline proposed format Heres Rollies letter Late last year submitted proposal AMA through PAMPA add what refer Advanced Division Open Stunt classi fication 1987 Nationals Lincoln Edi tors note proposal too late considered official event thus de cision run PAMPA-endorsedbut unofficialclass may fact necessary revise AMA rule book reflect skill classes before could actually consideredfor official Nats event bridge remains crossed meantime three-year trial unofficial event will provide insight acceptability concept PAMPA membership will allow time refine procedures Im sending letter several people such yourself hoping will help spread word generate interest division Briefly proposed format details follows Any flier has finished top 10 Nationals past 10 years will allowed compete Advanced Division simply declaring wishes prior start competition flying Advanced fliers will no way segregated separated Expert fliers will judged regular Open contest ants scores Advanced fliers either will segregated tabulation posted separately will some indication posted scores division flier also plan invite Junior Senior fliers interested enter division addition regular class Since lower-age classes have fallen hard times past years hope will opportunity younger fliers gain experience competitive atmo sphere Assuming Open format past yearswhich divides contestants four qualifying groupsis used fliers electing compete Advanced will divided four groups assigned circles Open format revised format Advanced will adjusted accordingly top two fliers four groups will advance third day competi tion will fly traditional top 20 contestants however will flying separate set awards will eligible advance final day Walker Cup Flyoff regardless scores awards Advanced Division will regular Nationals trophies awarded first through third places being supplied Jack Sheeks myself addition awards Bobby Hunt has offered supply three custom foam wings other awards may may offered As can see Rollie clearly has ball rolling Its likely final details will known until just before event beginsbut begin will information contact Rollie 28746 Westfield Livonia MI 48150 variety pros cons vis-a-vis Advanced class Nats lots strong opinions support observer proposal use unofficial formatting full PAMPA support recognition ideal way evaluate whether appropriate direc tion future event Id like go record thanking Rollie Jack efforts trials select USAs F2B Control Line Stunt FAI lingo team 1988 World Championships apparently set 1987 Labor Day Weekend Indianapolis IN Jack Sheeks has agreed orchestrate com petition has obtalned use what appears excellent site Indianapolis airport details will forthcoming because magazines lead time have already forthgone See Competition Newsletter section June issue magazine page 125 RMcM discussion Jack passing through Indy other day discussed possibility selecting team using AMA scoring rather FM AMA scoring minus appearance starting pattern points using FAI seven-minute time limit am Continued page 163 Frances Yves Fernandez f lies magnificent Mikado L aversion Panter designed countryman Lavaiette Power Merco 49 imported US Tom Dixon 1938 Peachtree Rd Suite 401 Atlanta GA 30309 Look whats inside sleek cowl bulges RI its speclaiand very sanitarymuffler Note curved exhaust stack extension 66 Model Aviation Cisus Maikis Ulm W Germany well-known ail overthe world beautifui competition Stunters aiso prolific designer sport-type Stunters OS Max 15-powered CabieFiy L perfect exampie art profile Great Lakes Trainer bipe Above does fuii pattern wIth no flaps using 05 35 Fierce Arrow 86/Baron Continued page 64 first takeoff consumed two laps before full up-elevator elevon bent three struts ship leaped vertical takeoff three feet off ground Once heart stopped pounding began realize just easily model flies Benefit experience careful set up gear exactly shown plansunless want 1 200-sq-in fan-powered car Building part Fierce Arrow 86 uses conventional building tech niques highly recommend method assembling wing -in-dia steel rods pioneered Al Rabe no finer way ensure accurate warp-free construction Stunt community indebted Al significant con tribution holes rib templates practical location given extreme taper wing still sufficiently separated ensure straight wing Slide ribs onto tubes prop steel rods parallel build wing would aiy other Note -in ribs used help cope extreme taper wing carving ribs between root tip templates After sheeting wing leading trail ing edges glue cap strips Remove rods turning hand drill pulling out end wing will prevent damage ribs during removal Install bellcrank pushrod lead-outs complete cen ter-section planking Two other areas construction somewhat unique design First top block undergoes very unusual trans ition cross section canopy rudder conventional approach -in top block -in sheet rudder would have made fuselage graphics difficult execute carve top block solid wood could difficult potentially heavy Consequently top block formed first foam Make templates canopy rudder cross sections together bottom undercut A6 tack onto foam Sand foam contour indicated templates Soak V6-m sheeting ammonia water apply foam spray-on contact cement Wrap everything up Ace bandage leave overnight dry Remove templates glue top block fuselage second construction area unusual control installation Due offset hinge line need midspan support practical method installing control surfaces cut groove bottom accommodate metal hinge rods control horn Before MonoKoting surfaces align control system hinge lines etc tack-glue components place check operation Disassemble apply MonoKote install nylon midspan hinge strut Use nylon Deirin nylon bonds reasonably well wood Scuff up nylon drill few 1/is holes strut prior gluing wing rib epoxy Note operation done after wing elevons MonoKoted fuselage painted fuselage painted clear dope followed tissue covering talc filler colored dope final clear finish Ditzler acrylic enamel protect dope fuel flying adjusting plane very straightforward lead-outs belong far forward possible should consider adjustability basically window dressing CG should po sitioned shown plans first flight starters set plane up Rev-Up 11 -6EW prop 67 ft 015 lines 4-in handle spacing Add about ip weight go Lap times 5 52 seconds seem about right de sign Tweak elevons keep wings level whether upright inverted Fly thousand times too can join ranks Pro Stunt CL Aerobatics/Fancher Continued page 66 personally strongly favor such action little no difference flying FAT pattern some will argue feel persuasively huge differ ence FAT scoring system As know AMA scaring uses simple 10-40 point score maneuvers multi ple-camponent maneuvers ie Three Consecu tive Inside Loops being given score FAT utilizes 1-10 scale individual compo nent consecutive maneuvers multiplied its own difficulty K factor total scare maneuver thus sum segments score multiplied its separate K-factor added together Given difficulty finding competent judg es under best conditions feel penalize ourselves insisting employ judging system have never used before likely will never use again opponents such procedure will cor rectly point out FAT system puts special emphasis difficult maneuvers via difficulty factor whereas AMA system ranks maneuvers equally should therefore select team using same system under will flying World Champs could result selecting team less prepared compete under conditions argument logical well-taken feel however imprecision results very competent judges being forced use unfamiliar scoring systemwhich both cumbersome use apt magni fy errors judges partis disadvantage shortcoming caused use AMA system team-selection process feel strongly about proposal suggest make feelings known Jack PAMPA President George Higgins AMA way no requirement team selected particular way World I I I I I 0 1975 July first issue 0 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Enclose aseparate $2200 check set ordered NO CASHNO CHARGES I I I I I U Print carefully shipping label II II Name BStreet Address I HstateZIP II Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 J July1987 163 GoingGoing Act Now Before Theyre Gone Quantities Limited AMA NA1OHALI CfMTtNFOP Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete Champs themselves specifically regulated individual countries can select teams desire Ive amazed interest shown column dealing biplane Stunters Ive re ceived letters suggestions plans over States Claus Maikis West Germany Most comments agreement opinions some disagreement well Most disagreement dealt suggestion use flaps Tom Dixon sent along plans Don Yearouts Bi-ceps Stunter 1969 Its good-looking ship built Fox 59 Tom suggests using ST 60 plans available Tom 1938 Peachtree Road Suite 401 Atlanta GA 30309 $15 set Tom also good suggestion design would apply bipe Most bipes have tendency roll excessively Claus Maikis commented tendency well stating bipes hinged badly corners Tom reminds us usual location lead-out guide bipe interplane strut roughly i way out inboardwing bipe 700 sq total wing area 350 squares wing aspect ratio 61 would put lead-out guide just 15 centerline fuselage monoplane comparable area having aspect ratio 551 would place lead-out guide case wing tip itself about 31 centerline positive effect addi tional leverage control unwanted roll obvi ous Tom suggests development means moving guide least wing tips preferably beyond few inches also concedes cant think attractive way Maybe can other thing Ive heard experienced bipe pilots additional drag very real Glide roughly akin highly-polished rock Until thoroughly familiar ships power-off characteristics plan make either very steep glide touchdown have engine quit low altitude avoid need extended glide Whats say local hobby empo rium thinks control lines radio antennas says nobody does stuff anymore dont stock Well cant find CL supplies local hobby shop refuse try locate still hope Ijust received catalog called Bear Necessi ties Bear Enterprises 2709 Turtlecreek Drive Hazel Crest IL 60429 subtitle catalog catchy phrase Catering Controline Connoisseur golly sure obvious Bears primary interest Combat does fact stock everything commercially available Stunt enthusiast well glaring omis sion point selection good Stunt engines particular interest availability control line wire bulk quantities currently-produced control handies triguing entry Bear four-inch aluminum bellcrank Two bucks gets catalog Give em try far biggest complaint get column dont enough basic stuff things value beginners intermediates Ive gotta admit some truth criticisms Starting next month hope rectify omission Over last couple months have building Sig Twister kindly donated Sig intention go through construction trim stages Twister share experience readers Well hit everything spend little extra areas give people trouble Most info will usable both beginners intermediates However may valuable intermediates Ill includ ing some modifications basic Twister hope bring up modern performance stan dards Nothing earthshaking significant enough Twister II should much better Precision Aerobatics trainer origlnal. origlnal aint bad Ijust received notification couple special items years Stunt event Nats Model Builder Magazine has graciously fered sponsor Old-Time Stunt once again unofficial event Model Builder continues strong supporter traditional modeling endeavors addition RC thanks Bill Northrop staff appreciate com mitment youd love fly Old-Timer havent time scratch-build drop line Russ James A-Js Free Flight Service 4840 E Leisure Fresno CA 93727 now has available mag nficent kits profile P-SI Yak 9 also old American Senior Hand-selected wood precision-sandednot die-cutparts complete hardware packages make kits real time-savers Ive got Last good news Ian Russell man behind Merco englnes has committed annual award highest-placing user Merco engine. Tom Dixon aint eliglble years award will collectors special Merco 61 built original sand-cast case early Sixties flew Merco-powered 800-sqin ship weekend didnt glve away thing ST Go Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 nylon cones pre-cut prop-blade cutouts cutouts also have series pre-scored breakaway segments allow almost perfect fit prop blades cost smaller spinners just under $9 larger size slightly over $9 Both ofthese items addition being able used flight should also look great properly painted Sport Scale models requiring three-bladed propellers Another item seen Hobby Lobby some highly-detailed cockpit instrument assortments A-and -scale sizes assortment con tains 20 injection-molded plastic iiistruments 26 self-adhesive four-color instrument faces Knobs included such instruments altimeter setting radio artificial horizon etc /t-scale size about ss would probably best suited 60-size models Cost instrument packages approxi mately $8 smaller size larger about $12 Robarts display featured full display great Scale wheels landing gear strut dressup kits New Robart right-angle drive attachment Dremel Moto-Tool new 9Q0 attachment allows get drill cutter grinding wheel hard-to-reach places during fuselage wing construction units come two different styles fit both old new series Dremel Moto-Tools units made ABS plastic equipped either plain ball bear ings Sorry didnt get cost item am sure local hobby shop will glad help score Robart display also picked up copy of Robarts How-to Series pamphlets Hinges Scale Wheels Struts MIM model incidence meter free pamphlets provide excellent step-bystep procedures dressing up landing gear struts installing hinges several differenthinge operations using incidence meter setting englne side thrust stabilizer leveling Continued page 170 164 Model Aviation CHAMPION FF KITS WakeUp Wakefield$4495 Champion Coupe$2595 Upshot Mulvihill$2450 CHAMPION RUBBER 3/32 1/8 3/16 & 1/4 widths 042 thick $1195/lb BOx* CATALOG $100 CHAMPION MODEL PRODUCTS 880 Carmen Ct La Verne CA 91750 714 599-3348 * lopaldes US deroy era UPS Call msid onto add 6115 sales tao ELECTRIC MOTOR MOUNT FOR ALL 05 10 075 MOTORS FOR ALL 0350515 COBALTS CAST ALUMFNUM WEIGHS ONLY 1 1/4 oz Induces motor nold down strop screws $895 PLf Pat applied ho Ce sat o mob moon procides hrm firewall inoancng moot pope eec c moo s Mount al/ows exchanging motors boot go penS mance Motor can mounted through hre ma o loraic doll email br proper CO balancing FREE CATALOG hate install hinges Try Easy Hinges See Difference single slot tew dreps C/A glue its done No gouging pinning hinge pins worry about lncrgdibly Strong Vlrtoally indestructible 24 hinges 2 mmi ES D II fill P0 Box 1743 Marcos CA 92069
Edition: Model Aviation - 1987/07
Page Numbers: 66, 163, 164
Control Line Aerobatics Ted Fancher ADVANCED CLASS Nats end last months column announced exis tence unofficial Advanced skill-class event held years Nats Lincoln NE July 12 through 18 Although no details time felt important word get out timely fashion Shortly after submitting column re ceived letter Rolland McDonald along Jack Sheeks spark plug behind endeavor Although details final able outline proposed format Heres Rollies letter Late last year submitted proposal AMA through PAMPA add what refer Advanced Division Open Stunt classi fication 1987 Nationals Lincoln Edi tors note proposal too late considered official event thus de cision run PAMPA-endorsedbut unofficialclass may fact necessary revise AMA rule book reflect skill classes before could actually consideredfor official Nats event bridge remains crossed meantime three-year trial unofficial event will provide insight acceptability concept PAMPA membership will allow time refine procedures Im sending letter several people such yourself hoping will help spread word generate interest division Briefly proposed format details follows Any flier has finished top 10 Nationals past 10 years will allowed compete Advanced Division simply declaring wishes prior start competition flying Advanced fliers will no way segregated separated Expert fliers will judged regular Open contest ants scores Advanced fliers either will segregated tabulation posted separately will some indication posted scores division flier also plan invite Junior Senior fliers interested enter division addition regular class Since lower-age classes have fallen hard times past years hope will opportunity younger fliers gain experience competitive atmo sphere Assuming Open format past yearswhich divides contestants four qualifying groupsis used fliers electing compete Advanced will divided four groups assigned circles Open format revised format Advanced will adjusted accordingly top two fliers four groups will advance third day competi tion will fly traditional top 20 contestants however will flying separate set awards will eligible advance final day Walker Cup Flyoff regardless scores awards Advanced Division will regular Nationals trophies awarded first through third places being supplied Jack Sheeks myself addition awards Bobby Hunt has offered supply three custom foam wings other awards may may offered As can see Rollie clearly has ball rolling Its likely final details will known until just before event beginsbut begin will information contact Rollie 28746 Westfield Livonia MI 48150 variety pros cons vis-a-vis Advanced class Nats lots strong opinions support observer proposal use unofficial formatting full PAMPA support recognition ideal way evaluate whether appropriate direc tion future event Id like go record thanking Rollie Jack efforts trials select USAs F2B Control Line Stunt FAI lingo team 1988 World Championships apparently set 1987 Labor Day Weekend Indianapolis IN Jack Sheeks has agreed orchestrate com petition has obtalned use what appears excellent site Indianapolis airport details will forthcoming because magazines lead time have already forthgone See Competition Newsletter section June issue magazine page 125 RMcM discussion Jack passing through Indy other day discussed possibility selecting team using AMA scoring rather FM AMA scoring minus appearance starting pattern points using FAI seven-minute time limit am Continued page 163 Frances Yves Fernandez f lies magnificent Mikado L aversion Panter designed countryman Lavaiette Power Merco 49 imported US Tom Dixon 1938 Peachtree Rd Suite 401 Atlanta GA 30309 Look whats inside sleek cowl bulges RI its speclaiand very sanitarymuffler Note curved exhaust stack extension 66 Model Aviation Cisus Maikis Ulm W Germany well-known ail overthe world beautifui competition Stunters aiso prolific designer sport-type Stunters OS Max 15-powered CabieFiy L perfect exampie art profile Great Lakes Trainer bipe Above does fuii pattern wIth no flaps using 05 35 Fierce Arrow 86/Baron Continued page 64 first takeoff consumed two laps before full up-elevator elevon bent three struts ship leaped vertical takeoff three feet off ground Once heart stopped pounding began realize just easily model flies Benefit experience careful set up gear exactly shown plansunless want 1 200-sq-in fan-powered car Building part Fierce Arrow 86 uses conventional building tech niques highly recommend method assembling wing -in-dia steel rods pioneered Al Rabe no finer way ensure accurate warp-free construction Stunt community indebted Al significant con tribution holes rib templates practical location given extreme taper wing still sufficiently separated ensure straight wing Slide ribs onto tubes prop steel rods parallel build wing would aiy other Note -in ribs used help cope extreme taper wing carving ribs between root tip templates After sheeting wing leading trail ing edges glue cap strips Remove rods turning hand drill pulling out end wing will prevent damage ribs during removal Install bellcrank pushrod lead-outs complete cen ter-section planking Two other areas construction somewhat unique design First top block undergoes very unusual trans ition cross section canopy rudder conventional approach -in top block -in sheet rudder would have made fuselage graphics difficult execute carve top block solid wood could difficult potentially heavy Consequently top block formed first foam Make templates canopy rudder cross sections together bottom undercut A6 tack onto foam Sand foam contour indicated templates Soak V6-m sheeting ammonia water apply foam spray-on contact cement Wrap everything up Ace bandage leave overnight dry Remove templates glue top block fuselage second construction area unusual control installation Due offset hinge line need midspan support practical method installing control surfaces cut groove bottom accommodate metal hinge rods control horn Before MonoKoting surfaces align control system hinge lines etc tack-glue components place check operation Disassemble apply MonoKote install nylon midspan hinge strut Use nylon Deirin nylon bonds reasonably well wood Scuff up nylon drill few 1/is holes strut prior gluing wing rib epoxy Note operation done after wing elevons MonoKoted fuselage painted fuselage painted clear dope followed tissue covering talc filler colored dope final clear finish Ditzler acrylic enamel protect dope fuel flying adjusting plane very straightforward lead-outs belong far forward possible should consider adjustability basically window dressing CG should po sitioned shown plans first flight starters set plane up Rev-Up 11 -6EW prop 67 ft 015 lines 4-in handle spacing Add about ip weight go Lap times 5 52 seconds seem about right de sign Tweak elevons keep wings level whether upright inverted Fly thousand times too can join ranks Pro Stunt CL Aerobatics/Fancher Continued page 66 personally strongly favor such action little no difference flying FAT pattern some will argue feel persuasively huge differ ence FAT scoring system As know AMA scaring uses simple 10-40 point score maneuvers multi ple-camponent maneuvers ie Three Consecu tive Inside Loops being given score FAT utilizes 1-10 scale individual compo nent consecutive maneuvers multiplied its own difficulty K factor total scare maneuver thus sum segments score multiplied its separate K-factor added together Given difficulty finding competent judg es under best conditions feel penalize ourselves insisting employ judging system have never used before likely will never use again opponents such procedure will cor rectly point out FAT system puts special emphasis difficult maneuvers via difficulty factor whereas AMA system ranks maneuvers equally should therefore select team using same system under will flying World Champs could result selecting team less prepared compete under conditions argument logical well-taken feel however imprecision results very competent judges being forced use unfamiliar scoring systemwhich both cumbersome use apt magni fy errors judges partis disadvantage shortcoming caused use AMA system team-selection process feel strongly about proposal suggest make feelings known Jack PAMPA President George Higgins AMA way no requirement team selected particular way World I I I I I 0 1975 July first issue 0 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Enclose aseparate $2200 check set ordered NO CASHNO CHARGES I I I I I U Print carefully shipping label II II Name BStreet Address I HstateZIP II Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 J July1987 163 GoingGoing Act Now Before Theyre Gone Quantities Limited AMA NA1OHALI CfMTtNFOP Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete Champs themselves specifically regulated individual countries can select teams desire Ive amazed interest shown column dealing biplane Stunters Ive re ceived letters suggestions plans over States Claus Maikis West Germany Most comments agreement opinions some disagreement well Most disagreement dealt suggestion use flaps Tom Dixon sent along plans Don Yearouts Bi-ceps Stunter 1969 Its good-looking ship built Fox 59 Tom suggests using ST 60 plans available Tom 1938 Peachtree Road Suite 401 Atlanta GA 30309 $15 set Tom also good suggestion design would apply bipe Most bipes have tendency roll excessively Claus Maikis commented tendency well stating bipes hinged badly corners Tom reminds us usual location lead-out guide bipe interplane strut roughly i way out inboardwing bipe 700 sq total wing area 350 squares wing aspect ratio 61 would put lead-out guide just 15 centerline fuselage monoplane comparable area having aspect ratio 551 would place lead-out guide case wing tip itself about 31 centerline positive effect addi tional leverage control unwanted roll obvi ous Tom suggests development means moving guide least wing tips preferably beyond few inches also concedes cant think attractive way Maybe can other thing Ive heard experienced bipe pilots additional drag very real Glide roughly akin highly-polished rock Until thoroughly familiar ships power-off characteristics plan make either very steep glide touchdown have engine quit low altitude avoid need extended glide Whats say local hobby empo rium thinks control lines radio antennas says nobody does stuff anymore dont stock Well cant find CL supplies local hobby shop refuse try locate still hope Ijust received catalog called Bear Necessi ties Bear Enterprises 2709 Turtlecreek Drive Hazel Crest IL 60429 subtitle catalog catchy phrase Catering Controline Connoisseur golly sure obvious Bears primary interest Combat does fact stock everything commercially available Stunt enthusiast well glaring omis sion point selection good Stunt engines particular interest availability control line wire bulk quantities currently-produced control handies triguing entry Bear four-inch aluminum bellcrank Two bucks gets catalog Give em try far biggest complaint get column dont enough basic stuff things value beginners intermediates Ive gotta admit some truth criticisms Starting next month hope rectify omission Over last couple months have building Sig Twister kindly donated Sig intention go through construction trim stages Twister share experience readers Well hit everything spend little extra areas give people trouble Most info will usable both beginners intermediates However may valuable intermediates Ill includ ing some modifications basic Twister hope bring up modern performance stan dards Nothing earthshaking significant enough Twister II should much better Precision Aerobatics trainer origlnal. origlnal aint bad Ijust received notification couple special items years Stunt event Nats Model Builder Magazine has graciously fered sponsor Old-Time Stunt once again unofficial event Model Builder continues strong supporter traditional modeling endeavors addition RC thanks Bill Northrop staff appreciate com mitment youd love fly Old-Timer havent time scratch-build drop line Russ James A-Js Free Flight Service 4840 E Leisure Fresno CA 93727 now has available mag nficent kits profile P-SI Yak 9 also old American Senior Hand-selected wood precision-sandednot die-cutparts complete hardware packages make kits real time-savers Ive got Last good news Ian Russell man behind Merco englnes has committed annual award highest-placing user Merco engine. Tom Dixon aint eliglble years award will collectors special Merco 61 built original sand-cast case early Sixties flew Merco-powered 800-sqin ship weekend didnt glve away thing ST Go Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 nylon cones pre-cut prop-blade cutouts cutouts also have series pre-scored breakaway segments allow almost perfect fit prop blades cost smaller spinners just under $9 larger size slightly over $9 Both ofthese items addition being able used flight should also look great properly painted Sport Scale models requiring three-bladed propellers Another item seen Hobby Lobby some highly-detailed cockpit instrument assortments A-and -scale sizes assortment con tains 20 injection-molded plastic iiistruments 26 self-adhesive four-color instrument faces Knobs included such instruments altimeter setting radio artificial horizon etc /t-scale size about ss would probably best suited 60-size models Cost instrument packages approxi mately $8 smaller size larger about $12 Robarts display featured full display great Scale wheels landing gear strut dressup kits New Robart right-angle drive attachment Dremel Moto-Tool new 9Q0 attachment allows get drill cutter grinding wheel hard-to-reach places during fuselage wing construction units come two different styles fit both old new series Dremel Moto-Tools units made ABS plastic equipped either plain ball bear ings Sorry didnt get cost item am sure local hobby shop will glad help score Robart display also picked up copy of Robarts How-to Series pamphlets Hinges Scale Wheels Struts MIM model incidence meter free pamphlets provide excellent step-bystep procedures dressing up landing gear struts installing hinges several differenthinge operations using incidence meter setting englne side thrust stabilizer leveling Continued page 170 164 Model Aviation CHAMPION FF KITS WakeUp Wakefield$4495 Champion Coupe$2595 Upshot Mulvihill$2450 CHAMPION RUBBER 3/32 1/8 3/16 & 1/4 widths 042 thick $1195/lb BOx* CATALOG $100 CHAMPION MODEL PRODUCTS 880 Carmen Ct La Verne CA 91750 714 599-3348 * lopaldes US deroy era UPS Call msid onto add 6115 sales tao ELECTRIC MOTOR MOUNT FOR ALL 05 10 075 MOTORS FOR ALL 0350515 COBALTS CAST ALUMFNUM WEIGHS ONLY 1 1/4 oz Induces motor nold down strop screws $895 PLf Pat applied ho Ce sat o mob moon procides hrm firewall inoancng moot pope eec c moo s Mount al/ows exchanging motors boot go penS mance Motor can mounted through hre ma o loraic doll email br proper CO balancing FREE CATALOG hate install hinges Try Easy Hinges See Difference single slot tew dreps C/A glue its done No gouging pinning hinge pins worry about lncrgdibly Strong Vlrtoally indestructible 24 hinges 2 mmi ES D II fill P0 Box 1743 Marcos CA 92069
Edition: Model Aviation - 1987/07
Page Numbers: 66, 163, 164
Control Line Aerobatics Ted Fancher ADVANCED CLASS Nats end last months column announced exis tence unofficial Advanced skill-class event held years Nats Lincoln NE July 12 through 18 Although no details time felt important word get out timely fashion Shortly after submitting column re ceived letter Rolland McDonald along Jack Sheeks spark plug behind endeavor Although details final able outline proposed format Heres Rollies letter Late last year submitted proposal AMA through PAMPA add what refer Advanced Division Open Stunt classi fication 1987 Nationals Lincoln Edi tors note proposal too late considered official event thus de cision run PAMPA-endorsedbut unofficialclass may fact necessary revise AMA rule book reflect skill classes before could actually consideredfor official Nats event bridge remains crossed meantime three-year trial unofficial event will provide insight acceptability concept PAMPA membership will allow time refine procedures Im sending letter several people such yourself hoping will help spread word generate interest division Briefly proposed format details follows Any flier has finished top 10 Nationals past 10 years will allowed compete Advanced Division simply declaring wishes prior start competition flying Advanced fliers will no way segregated separated Expert fliers will judged regular Open contest ants scores Advanced fliers either will segregated tabulation posted separately will some indication posted scores division flier also plan invite Junior Senior fliers interested enter division addition regular class Since lower-age classes have fallen hard times past years hope will opportunity younger fliers gain experience competitive atmo sphere Assuming Open format past yearswhich divides contestants four qualifying groupsis used fliers electing compete Advanced will divided four groups assigned circles Open format revised format Advanced will adjusted accordingly top two fliers four groups will advance third day competi tion will fly traditional top 20 contestants however will flying separate set awards will eligible advance final day Walker Cup Flyoff regardless scores awards Advanced Division will regular Nationals trophies awarded first through third places being supplied Jack Sheeks myself addition awards Bobby Hunt has offered supply three custom foam wings other awards may may offered As can see Rollie clearly has ball rolling Its likely final details will known until just before event beginsbut begin will information contact Rollie 28746 Westfield Livonia MI 48150 variety pros cons vis-a-vis Advanced class Nats lots strong opinions support observer proposal use unofficial formatting full PAMPA support recognition ideal way evaluate whether appropriate direc tion future event Id like go record thanking Rollie Jack efforts trials select USAs F2B Control Line Stunt FAI lingo team 1988 World Championships apparently set 1987 Labor Day Weekend Indianapolis IN Jack Sheeks has agreed orchestrate com petition has obtalned use what appears excellent site Indianapolis airport details will forthcoming because magazines lead time have already forthgone See Competition Newsletter section June issue magazine page 125 RMcM discussion Jack passing through Indy other day discussed possibility selecting team using AMA scoring rather FM AMA scoring minus appearance starting pattern points using FAI seven-minute time limit am Continued page 163 Frances Yves Fernandez f lies magnificent Mikado L aversion Panter designed countryman Lavaiette Power Merco 49 imported US Tom Dixon 1938 Peachtree Rd Suite 401 Atlanta GA 30309 Look whats inside sleek cowl bulges RI its speclaiand very sanitarymuffler Note curved exhaust stack extension 66 Model Aviation Cisus Maikis Ulm W Germany well-known ail overthe world beautifui competition Stunters aiso prolific designer sport-type Stunters OS Max 15-powered CabieFiy L perfect exampie art profile Great Lakes Trainer bipe Above does fuii pattern wIth no flaps using 05 35 Fierce Arrow 86/Baron Continued page 64 first takeoff consumed two laps before full up-elevator elevon bent three struts ship leaped vertical takeoff three feet off ground Once heart stopped pounding began realize just easily model flies Benefit experience careful set up gear exactly shown plansunless want 1 200-sq-in fan-powered car Building part Fierce Arrow 86 uses conventional building tech niques highly recommend method assembling wing -in-dia steel rods pioneered Al Rabe no finer way ensure accurate warp-free construction Stunt community indebted Al significant con tribution holes rib templates practical location given extreme taper wing still sufficiently separated ensure straight wing Slide ribs onto tubes prop steel rods parallel build wing would aiy other Note -in ribs used help cope extreme taper wing carving ribs between root tip templates After sheeting wing leading trail ing edges glue cap strips Remove rods turning hand drill pulling out end wing will prevent damage ribs during removal Install bellcrank pushrod lead-outs complete cen ter-section planking Two other areas construction somewhat unique design First top block undergoes very unusual trans ition cross section canopy rudder conventional approach -in top block -in sheet rudder would have made fuselage graphics difficult execute carve top block solid wood could difficult potentially heavy Consequently top block formed first foam Make templates canopy rudder cross sections together bottom undercut A6 tack onto foam Sand foam contour indicated templates Soak V6-m sheeting ammonia water apply foam spray-on contact cement Wrap everything up Ace bandage leave overnight dry Remove templates glue top block fuselage second construction area unusual control installation Due offset hinge line need midspan support practical method installing control surfaces cut groove bottom accommodate metal hinge rods control horn Before MonoKoting surfaces align control system hinge lines etc tack-glue components place check operation Disassemble apply MonoKote install nylon midspan hinge strut Use nylon Deirin nylon bonds reasonably well wood Scuff up nylon drill few 1/is holes strut prior gluing wing rib epoxy Note operation done after wing elevons MonoKoted fuselage painted fuselage painted clear dope followed tissue covering talc filler colored dope final clear finish Ditzler acrylic enamel protect dope fuel flying adjusting plane very straightforward lead-outs belong far forward possible should consider adjustability basically window dressing CG should po sitioned shown plans first flight starters set plane up Rev-Up 11 -6EW prop 67 ft 015 lines 4-in handle spacing Add about ip weight go Lap times 5 52 seconds seem about right de sign Tweak elevons keep wings level whether upright inverted Fly thousand times too can join ranks Pro Stunt CL Aerobatics/Fancher Continued page 66 personally strongly favor such action little no difference flying FAT pattern some will argue feel persuasively huge differ ence FAT scoring system As know AMA scaring uses simple 10-40 point score maneuvers multi ple-camponent maneuvers ie Three Consecu tive Inside Loops being given score FAT utilizes 1-10 scale individual compo nent consecutive maneuvers multiplied its own difficulty K factor total scare maneuver thus sum segments score multiplied its separate K-factor added together Given difficulty finding competent judg es under best conditions feel penalize ourselves insisting employ judging system have never used before likely will never use again opponents such procedure will cor rectly point out FAT system puts special emphasis difficult maneuvers via difficulty factor whereas AMA system ranks maneuvers equally should therefore select team using same system under will flying World Champs could result selecting team less prepared compete under conditions argument logical well-taken feel however imprecision results very competent judges being forced use unfamiliar scoring systemwhich both cumbersome use apt magni fy errors judges partis disadvantage shortcoming caused use AMA system team-selection process feel strongly about proposal suggest make feelings known Jack PAMPA President George Higgins AMA way no requirement team selected particular way World I I I I I 0 1975 July first issue 0 1976 0197701982 0197801983 0197901984 0198001985 0198101986 Enclose aseparate $2200 check set ordered NO CASHNO CHARGES I I I I I U Print carefully shipping label II II Name BStreet Address I HstateZIP II Make checks payable AMA Send orders Academy Model Aeronautics 1810 Samuel Morse Dr Reston VA 22090 J July1987 163 GoingGoing Act Now Before Theyre Gone Quantities Limited AMA NA1OHALI CfMTtNFOP Collectors Notice Just released AMA Museum BACK ISSUES Model Aviation magazinesNEW original car tons sale YEAR SETS ONLY Check selections below send SEPARATE $2200 CHECK individual set Orders will filled first-come basis set request sold out check will returned being cashed Limited Quantities Sets Are Complete Champs themselves specifically regulated individual countries can select teams desire Ive amazed interest shown column dealing biplane Stunters Ive re ceived letters suggestions plans over States Claus Maikis West Germany Most comments agreement opinions some disagreement well Most disagreement dealt suggestion use flaps Tom Dixon sent along plans Don Yearouts Bi-ceps Stunter 1969 Its good-looking ship built Fox 59 Tom suggests using ST 60 plans available Tom 1938 Peachtree Road Suite 401 Atlanta GA 30309 $15 set Tom also good suggestion design would apply bipe Most bipes have tendency roll excessively Claus Maikis commented tendency well stating bipes hinged badly corners Tom reminds us usual location lead-out guide bipe interplane strut roughly i way out inboardwing bipe 700 sq total wing area 350 squares wing aspect ratio 61 would put lead-out guide just 15 centerline fuselage monoplane comparable area having aspect ratio 551 would place lead-out guide case wing tip itself about 31 centerline positive effect addi tional leverage control unwanted roll obvi ous Tom suggests development means moving guide least wing tips preferably beyond few inches also concedes cant think attractive way Maybe can other thing Ive heard experienced bipe pilots additional drag very real Glide roughly akin highly-polished rock Until thoroughly familiar ships power-off characteristics plan make either very steep glide touchdown have engine quit low altitude avoid need extended glide Whats say local hobby empo rium thinks control lines radio antennas says nobody does stuff anymore dont stock Well cant find CL supplies local hobby shop refuse try locate still hope Ijust received catalog called Bear Necessi ties Bear Enterprises 2709 Turtlecreek Drive Hazel Crest IL 60429 subtitle catalog catchy phrase Catering Controline Connoisseur golly sure obvious Bears primary interest Combat does fact stock everything commercially available Stunt enthusiast well glaring omis sion point selection good Stunt engines particular interest availability control line wire bulk quantities currently-produced control handies triguing entry Bear four-inch aluminum bellcrank Two bucks gets catalog Give em try far biggest complaint get column dont enough basic stuff things value beginners intermediates Ive gotta admit some truth criticisms Starting next month hope rectify omission Over last couple months have building Sig Twister kindly donated Sig intention go through construction trim stages Twister share experience readers Well hit everything spend little extra areas give people trouble Most info will usable both beginners intermediates However may valuable intermediates Ill includ ing some modifications basic Twister hope bring up modern performance stan dards Nothing earthshaking significant enough Twister II should much better Precision Aerobatics trainer origlnal. origlnal aint bad Ijust received notification couple special items years Stunt event Nats Model Builder Magazine has graciously fered sponsor Old-Time Stunt once again unofficial event Model Builder continues strong supporter traditional modeling endeavors addition RC thanks Bill Northrop staff appreciate com mitment youd love fly Old-Timer havent time scratch-build drop line Russ James A-Js Free Flight Service 4840 E Leisure Fresno CA 93727 now has available mag nficent kits profile P-SI Yak 9 also old American Senior Hand-selected wood precision-sandednot die-cutparts complete hardware packages make kits real time-savers Ive got Last good news Ian Russell man behind Merco englnes has committed annual award highest-placing user Merco engine. Tom Dixon aint eliglble years award will collectors special Merco 61 built original sand-cast case early Sixties flew Merco-powered 800-sqin ship weekend didnt glve away thing ST Go Ted Fancher 158 Flying Cloud Isle Foster City CA 94404 CL Scale/Boss Continued page 67 nylon cones pre-cut prop-blade cutouts cutouts also have series pre-scored breakaway segments allow almost perfect fit prop blades cost smaller spinners just under $9 larger size slightly over $9 Both ofthese items addition being able used flight should also look great properly painted Sport Scale models requiring three-bladed propellers Another item seen Hobby Lobby some highly-detailed cockpit instrument assortments A-and -scale sizes assortment con tains 20 injection-molded plastic iiistruments 26 self-adhesive four-color instrument faces Knobs included such instruments altimeter setting radio artificial horizon etc /t-scale size about ss would probably best suited 60-size models Cost instrument packages approxi mately $8 smaller size larger about $12 Robarts display featured full display great Scale wheels landing gear strut dressup kits New Robart right-angle drive attachment Dremel Moto-Tool new 9Q0 attachment allows get drill cutter grinding wheel hard-to-reach places during fuselage wing construction units come two different styles fit both old new series Dremel Moto-Tools units made ABS plastic equipped either plain ball bear ings Sorry didnt get cost item am sure local hobby shop will glad help score Robart display also picked up copy of Robarts How-to Series pamphlets Hinges Scale Wheels Struts MIM model incidence meter free pamphlets provide excellent step-bystep procedures dressing up landing gear struts installing hinges several differenthinge operations using incidence meter setting englne side thrust stabilizer leveling Continued page 170 164 Model Aviation CHAMPION FF KITS WakeUp Wakefield$4495 Champion Coupe$2595 Upshot Mulvihill$2450 CHAMPION RUBBER 3/32 1/8 3/16 & 1/4 widths 042 thick $1195/lb BOx* CATALOG $100 CHAMPION MODEL PRODUCTS 880 Carmen Ct La Verne CA 91750 714 599-3348 * lopaldes US deroy era UPS Call msid onto add 6115 sales tao ELECTRIC MOTOR MOUNT FOR ALL 05 10 075 MOTORS FOR ALL 0350515 COBALTS CAST ALUMFNUM WEIGHS ONLY 1 1/4 oz Induces motor nold down strop screws $895 PLf Pat applied ho Ce sat o mob moon procides hrm firewall inoancng moot pope eec c moo s Mount al/ows exchanging motors boot go penS mance Motor can mounted through hre ma o loraic doll email br proper CO balancing FREE CATALOG hate install hinges Try Easy Hinges See Difference single slot tew dreps C/A glue its done No gouging pinning hinge pins worry about lncrgdibly Strong Vlrtoally indestructible 24 hinges 2 mmi ES D II fill P0 Box 1743 Marcos CA 92069