Stan Powell's Dove 650

Stan Powell poses Dove 650 awards won 1982 National ContestPAMPA Concours dElegance 8th Precision Aerobatics model awarded 19 out possIble 20 appearance points model 1982 Nats Its truly beautiful well-designed model ______Stan Powulls Iin3 wiEiU ~Stan Powell THERE ARE MANY addictive influences society read about common ones daily newspapers Little did realize day spring 1975 about become addict just finished building workshop house itching find proj x m, __ -U —w ect accompanied wife Sandy craft shop shopping spied small model airplane department other side store can guess what happened left store Sandy goodies minea lop Flite Nobler kit Later summer Sandy made detour vacation Southeastern Regional Championships Winston-Salem NC watched Les McDonald Gene Schaffer battle out first place Expert Precision Aerobatics Boy im pressed wanted what ing badly mouth watered itthe injection did inI hooked Since day Stunt flying has occupied prominent part life FortThis plane won Control Line Precision Aerobatics Concours dElegance award 1982 Nationals know has what takes looks department author/designer went finish very respectable eighth event Subsequently won 1982 King Orange International Design philosophies worthy note 84 Model Aviation nately God blessed perfect wife family have actively supported drive become best Now know Im coming lets talk about Dove 650 airplane represents composite best features previous airplanes course some borrowed ideas main theme airplanes has sim plicity reliability competition air plane must support flier burden him example contest see fliers cant get engines started because fancy cowl design prevents normal choking about guys spend 30 minutes changing engine fuel tank tank should removable dis turbing engine Doves engine tank can replaced ready go again before flying buddy has completed flight provided doesnt crash Time flying site contest precious build airplanes functional first priority pretty second Dove 650 September 1983 85 Left Access engine intake choking quick starts criteria cowl design Engine cooling ability adequate Right cowl removed engine compartment comes view Note through-the-tank tie-down tank can removed quickly needed Engine shown OS Max 40 FSR-S author especially modified use CL Precision Aerobatics flying Unique lettering wing done aid stencils cut Contac paper Photo-enlarged Chart-Pac graphics lettering guide lettering design Trim panel lines India ink applied Rapidograph technical pen Note precise hinge-line fit flaps Brushea siuminum spinner ano simulated smoked-glass canopy add distinction overall finish trim Martine muffler tapped pressure-uniflo tank operation proves both possible Another subtle feature Doves design landing gear flights have seen thought great scored low Think back What did takeoff landing look like Theres better chance werent up snuff Front wheels too far rear ward /2 can really upset way airplane lands too far forward will cause porpoise too far rearward will cause bounce too easily tail gear too short can cause airplane lift off too quickly its too long will difficult make gradual smooth lift-off posi tion Doves gears optimized give consistent 35 -point takeoffs landings Doves aerodynamic proportions bit unusual compared current crop competitive Stunters gen erally have long tail moments large tail areas stability plane achieves same effect lengthening nose moment instead combination control surface areas moments high aspect ratio wing control hook-up designed provide super stability still have ability turn lightning-sharp corners ob served Dove 650 1982 Nats will attest its cornering ability Another advantage using shorter tail moment reduced weight build wing stab elevators foam leaving very little margin building errors invariably add weight Remember unnecessary gram weight behind CG requires up twice amount added nose balance purposes inertia comes play SuppQse tail section came out too heavy bury 2 oz lead I/A BALSA SHEET BALSA BLOCKSLEASING EDGEMAPLE LANSING SHAPE HOLLOW AGJLSYABLE LAG 0/5 GUISE 4 WING PLAN 1INBOARD -5 RETT ,NGES ROOT FOAM WING TEMPLATE F MAPIE MOTORF-I MGUNTS 1/4 BASOWOOSI/H BALSA 355 PLY I/IA PLY DOUBLERS1 S/B 1/2 MAPLE3/32 PLY MOTOR MOUNTS I/U-i 3/IA TUBA t AD TANB NS BOLT-~ _ VECO SPINNERVBPLY BALSA FILLER BLOCKSAIR EARAUST ENGINE AG -AUBALSA I/55 BRASS I/B COWL Sb ES K IS/A NOTE FUE TANK BUS S/IA BRASS TUBE SLEEVE THRO THE CENTER FOR 5/52 MOONTING BOLT nose balance pitch airplane still within reasonable weight limits may have thought werent hurt Wrong law inertia roughly states body traveling straight line will continue move along line until force acts upon change its course force needed directly proportional mass weight moving body heavy nose tail though balanced will require force change direction bottom line youre going need horsepower youll demanding con trol surfaces also works reverse Once youve got airplane turning particularly corner its going take force change straight flight Todays larger airplanes require control system greater strength durability old standard Nobler hookup order handle strong gusty winds frequently found contests Doves con trol system designed thought mind control setup gives relatively high handle movement relation control sur face movement groovy flight less sensitivity also allows greater 86 Model Aviation L dove logo vertical f also made use stencil Contac paper plus Scotch Fine Line Tape Stan says logo has special significance him Stans unique control hookup two pieces plastic can see pushrod guides havent yet affixed formers Flaps taped neutral aligning controls FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 3 B BALSA T P LITE PLY HIBLETI 304 ACING WHEELS MOUNTDOG BA SA FUPELITE BELLCRANBMUSIC WIRE L GLEADNG EDGE7 WIND SHEETING II SS U - ID -TI UH BALSA SPUR-WI 0 VIEW FULL DEPTH OUTBOARD WINGH0-I TRIM DAT TOI ERIT PUSHRUD1W IBALSA 0--INSERT FLAPSI 3H C DRAIN FLAPS I 332 MW30R BALSA SPARTAPER TD OM_____ --PSSHRODTOPELITE HORN OH BALSA I 308 BALSA---NUTE JOIN STAR po---HALUES TOGETHER3032 BALSA THEN REINFORCE WITH GLASS CLOTH SHAPE GE FUSELAGE TOPWHEEL PANTSELU1zzzzm-F-MUSIC WIRE OR BALSA HORN 2 LEFT- 2 RIGHTFOAM STABILIZER B ELEVATOR TEMPLATES106 BALSA SHEETING SUER FOAM CONSTRUCTIONII 1030 PLYWOODF-3AF-4IOBB ELOOR- F-SALGAPUSHRODSOW BALSA SHEET OR BALSAF-6SUPPORT OH BALSAI 3030 PLOF-3BSHEET RUDDER OFFSET 5 LSA BLOCEFIN USELADE TOPSILVERPR BALSA SHEET SIDES N DOUBLERS -L0-102BALSA SPARS 10 32 RODF-3ArflUUI II II -F-ATEDF-A #OR SDI/H BALSA T P 3032 PLYWOOD3032 MWI/A SD BASABALSA BELLORASH MNT PLATEPUSHHODlUG PLY PLATES 101 I/B MUSIC WIRE FUSELAGE SIDE VIEW LANDING SEAR STAN POWELL S I/O BALSA BLOCK I/IA MASIC WIBE EUSELAGE BOTTOM 3/4 SID B6VE TA LW H EEL BALSA WHEEL PANTS ______650 0I23456 TRACING BY YOE DEMARCO gives greater leverage resulting air- rather unusual rear pushrod hookup plane drive through allows identical leverage applied maneuvers rather wrist flick flaps elevators reverse-mounted /1 landing gear treatment pure class seen either above below Note music wire skid bottom rear wheel pant Thats prevent damage wheel pants event rough landingand its characteristic attention details throughout whole model freedom selection line spacing handle pushrods farther out horns standard Nobler hookup September 1983 87 belicrank matter personal preference usual rear up-line' hookup should work just well Both flap elevator horns bushed 3/32-in ID hard brass tubing handy silver soldering might consider making own horns /x-in piano wire reduce flexing control surfaces next air plane will have beefed-up horns Construction am slow builder mainly because family obligations thought completing project complex competition Stunt ship can sometimes seem staggering after number years modeling thought has caused hesitate making start overcame fear looking total construc tion project group mini-projects example day Ill cut foam cores next day Ill make control horns pushrods Ill make skins etc di viding project mentally smaller jobs task doesnt seem insurmountable Ideally individual parts should completed before assembly begins really doesnt matter part constructed first just start suits fancy Wing usually build first wing critical part want con centrate interest peak templates shown plan foam-core wing can easily modi fied standard C- D-tube built-up con struction choose built-up route recommend rib spacing no wider 1 /2 help prevent plankingfrom sagging between ribs Very fine quality foam-core wings can purchased personally like feeling comes knowing built whole thing Lets assume purchased foam wing anyway complete sheet ing leading edge installed Before pro ceeding trace outline wing root cross section onto cardboard later use After have installed hardwood land ing gear blocks Hobbypoxy Formula #2 epoxy weight per panel should 4-4V4 oz maximum Next bellcrank front pushrod assembly installed length front pushrod determined holding flap horn neutral position back wing panel tape also holding bellcrank assembly neu tral position centered balsa center spar required length measured After making pushrod installing onto bellcrank completed assembly including lead-outs aligned tackglued onto outboard wing spar pushrod exit slot cut inboard panel Youre ready join two panels method joining panels differs norm Most people use foam blocks cores cut cradle lay panels gluing method did work well always got unwanted anhedral dihedral method involves joining panels together trailing edges TE pinned building board such wing per pendicular board First draw straight line building board several inches longer wing trailing edge wing will centered line Pin outboard panel controls installed onto board TE centered line Fit align inboard panel such makes good gapfree joint outboard panel satisfied fit alignment ap ply Hobbypoxy Formula #2 both panels join Check anhedral/dihedral placing straightedge board against TE side wing Adjust neutral extra support epoxy cures brace panels four bricks wrapped masking tape careful use min imum amount glue very little should ooze joint Wing tips should installed next Carve X 2 x 12 blocks have laminated cyanoacrylate CyA glue block should weigh 0 oz max imum Carve roughly shape hol low Install adjustable lead-out guide install both tips epoxy loom After epoxy has dried glue sheeting tips CyA finish carving shape time 2 ply bellcrank braces glued place Next strip /32 X balsa glued over wing center joint CyA edges strip feathered flow wing skin strip added cover epoxy avoid pos sible incompatibility later installing wing fuselage polyester resin glass cloth Flaps carved tweight Cgrain balsa planks equal rigidity Keep taper minimum /4 TE preserve rigidity After beveling leading edge LE apply two coats polyester resin beveled area TE wing sanding between coats Next stall flap horn Hobbypoxy Formula #2 Cut slots wing TE install Klett hinges Formula #2 1 pre lubricate hinge axles light coating Vaseline protect against glue seepage Notch slot flap assembly install flaps front pushrod slipped onto flap horn installed permanently time Neither should stationary flap ends installed point wing now ready installing fuselage should weigh maximum 125 oz landing gear Fuselage design box-style hol lowed top bottom blocks important select very lightweight /x-in sides identical grain assure straight fuselage Cut out identical fuselage sides draw wing line outside Note wing thrust stabilizer lines par allel top fuselage sides easy alignment Glue maple engine mounts onto fuselage sides polyester resin apply resin both surfaces Note mounts routed out /6 behind F-I Align mounts top sides using piece /4 balsa positioning guide Weight mounts until resin has cured /6 plywood doublers glued place same manner use polyester resin glue wherever possible because weighs less epoxy Locate mark positions F-I F-2 side side fuse lage down flat surface glue F-I place CyA holding per pendicular right-angle template Re peat F-2 CyA-glue other side F-I F-2 aligning flat surface Continued page 168 88 Model Aviation us necessary obtain top appearance points well competitions especially national level Doves design inspired workmanship can help winner Advanced design features never before seen R/C Helicopter Tnple ball bearings main tail rotorhubsLight weight metal construction AutorotationLow cost parts Controls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Oual ball bearing tail pitch controlSpiral hypoid gears main tail drives EASTERN US HELICENTER EAST 412/342-5500 ozone dont leave stains 11 Multi-motor aircraft very easy Electrics because electric motors usually well-matched performance charac teristics powered same bat tery several motors will run run down same rate No chance losing side really great Scale Some local fliers have several twins quads operational 12 Electric motors can fully con trolled flight can done onoff fashion power steps in-between fully-variable speed control zero maximum Try gas 13 Electric power virtually vibrationfree often allows simple radio stallation less foam packing shock mounting needed stallations nearly rigid receivers servos etc squeezed tightly go along 14 Electric simply perfect Wrong Like everything else life Electrics have both limitations capability require ments proper handling Example just conscientious modeler should careful allow gas engine overheat also should such modeler pay close atten tion battery heat series will attempt thorough honest realistic include everything didnt know needed know about Electrics realize some writing above makes redundant points purpose fill pages same words rather express range thoughts sev eral ways give reader variety viewpoint perspective next installment series will get electric power systemsmotors batteries some other Electric goodies Later well get installations suitable planes Till just ponder possibilities Any questions related part series may directed SASE author Bob Kopski 25 West End Dr Lans dale PA 19446 Please resist temptation jump ahead have yet write series Im unable handle letters require books worth writing answer properly Otherwise will attempt respond expedient fashion Dove 650/Powell Continued page 88 assure sides parallel CyA-glue sq tail post side fuselage flat building board draw two paral lel lines slightly longer fuselage separated width fuselage Draw third parallel line centered exactly between first two Line up pin front part fuselage board top down exactly between lines Make sure its pinned securely rigidly Adjust pin glue sides together tail post such tail end centered exactly centerline Pin F-3 F-4 F-5 F-6 place glue CyA sizes formers shown plan nominal should cut actual sizes needed rest fuselage relatively straightforward Glue /2 ply tank compartment floor place over engine mounts install blind nut tank hold-down Drill engine mount holes install blind mounting nuts Add nose filler blocks A-in top block insert building motor spinner no cylinder mounted A2-in brass shims shown plan Tack-glue top block bottom block cowl assembly place carve fuselage shape piece cowl removed completed including tie-downs after top bottom blocks removed hollowed carved hollowed top bottom blocks should weigh about 1/4-I oz total Reinforce inside nose cowl fiberglass cloth polyester resin Fuel-proof entire engine com partment several heavy coats resin stab-elevator assembly original model constructed foam cores shown Lightening holes foam shown plan may cut reduce weight built-up assembly will work well key strength rigidity light ness center joint stab should reinforced glass cloth completed assembly should weigh 1-20 oz fin rudder assembly can made very lightweight V4 /6 sheet weight shouldnt exceed oz Assembly advise reweigh com ponent parts before assembly sure within stated tolerances particularly tail section anything too heavy build over last chance correct weight problem first step install wing fuselage Draw cross section wing root proper location fuselage sides cut out sections Next re move part fuselage sides bot tom doublers TE allow installation wing through bottom use jig align wing fuse lage follows Take piece building board about 60 inches square lay flat surface ie table floor Draw straight line down center board fuselage will centered line Determine TE wing would intersect line point draw line across board perpendicular first line TE will lined up along line Pin fuselage top-down centered fuselage line Place wing fuselage line up TE TE line Next line up centers LE TE wing line drawn fuselage Also vertical sides fuse lage must perpendicular wing Once have wing aligned fuselage three directions pin ned place tack-glue CyA Proper 168 Model Aviation O New Expandable concept RIC Helicopters Competitor will fly 45050 or60 size engines o model can take novice flying winning AMA expert class alignment critical- con trolling weight dont rush things Fill gaps between wing fuselage soft balsa strips CyA glue previously-removed fuselage bottom now replaced wing permanently glued place reinforced polyester resin 15 oz/yd2 glass cloth Glue tail-wheel gear epoxy brace balsa strips extra strength bottom fuselage block glued back place permanently CyA Carve glue place inserts between flaps fuselage Using inserts guides tape flaps neutral glue stationary flap extensions sure neutral position Leave flaps taped neutral installing stabelevator assembly Aligning airfoil-shaped stab flat fuselage top can difficult unless have good procedure Mine build-up bottom center stab balsa strips stab sits top fuselage angle attack zero parallel wing top fuselage Now per manently install pushrod onto ele vator horn Mark position stab fuselage sides cut out 5/i6 x 3/4-in mounting slots Thread pushrod through fuselage temporarily hook up controls shown plans Line up elevators neutral stab square seen above behind pin securely place Check recheck alignment Once satisfied tack-glue stab place CyA Remove masking tape flaps check controls binding Glue rear pushrod guides place Again check binding controls should absolutely free Solder pushrod retaining washer again checking binding Lubri cate horn bushings Cut top block two just front stab permanently attach front part CyA glue Recheck stab alignment will probably off little after attaching top block Realign stab necessary fit glue rear portion top block place taking care exert pres sure stab Finish gluing stab per manently CyA filling gaps soft balsa strips Next align CyA-glue rudder/fin assembly place Carve glue inserts between elevators fuselage Install struts wheel pants landing gear being careful align ment use K&B polyester resin Prather phenolic micro-balloons fillets Although little trouble system lighter epoxy-based fillets dope adheres very well usual techniques apply except pot life mix short apply area time fillets can easily sanded shape 100-grit gar net paper glued rounded edge strip 9/ balsa Finishing use traditional dope-talc silkspan finish will add about 7 oz weight Start fixing little dents dinks~ handle airplane kid gloves out use dope talc paste fill dents sand airplane 400-grit vacuum clean Next apply coat Aerogloss clear over fillets two coats Sig Lite-Coat over entire airplane sanding lightly between coats Cover entire airplane 00 silkspan using 25/75 Lite-Coat/thinner affix paper silkspan should slightly damps help wrinkle removal After applying silkspan brush coat Lite-Coat carefully sand away overlaps silkspan Brush two coats Lite-Coat sand lightly Brush coat mixture /2 pint Lite Coat /4 pint thinner 2 oz Johnsons Baby Powder Let dry overnight sand off mixture 400-grit sandpaper padded block Repeat second sealer application necessary Vacuum away dust spray two mist-coats 50/50 Lite-Coat/thinner fol lowed mist-coat Sig silver silver coat will make imperfections show up like neon sign After fixing remaining flaws spray two mist-coats 50/50 Lite-Coat thinner Base color trim colors now added use various combinations Scotch Fine Line Tape frisket material masking Numbering lettering wing well Dove logo tail painted benefit stencils cut Contac Thin 1 qts Sig Lite-Coat 45/55 dope/thinner using 70% thinner/30% Sig Re tarder Spray two coats day morning evening until clear applied Let clear cure several days before go fly ft Keep out strong sunlight least week After finish has dried out least three weeks wash grease off wet-sand matte finish rub-out using Turtlewax white polishing compound finished weight should 49-52 oz range best performance fore first flight adjust balance point necessary 2 2/4 behind leading edge wing Check make sure outboard wing drops slowly pivoting airplane spinner rear fuselage bottom Mine trimmed out ip weight Lead-outs should positioned about one-third back slot L P0 Box 3957 Torrance CA 90510 GET ORGANIZED hee s set 0 4 sturdy files Sal holds aver 4 yeas youi lavonle 8a11 magazines 4 MAG FILES $495 Send $495 plan $1 00 lot postage handling 0GM INDUSTRIES Ps Box 398-K DOVER NH 03820 September 1983 169 paper Masking flash gently rubbed away damp cloth Soft Scrub trim color has added clean entire airplane Dupont Prep-sol rubbing alcohol Apply ink lines work ing section time add rub-ons now ready final clear coats 21 Old Time 12 HL Gliders 11 Contest Rubber Send 50 for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pdfiers & LOiS 040 GOOO SflJFF FAI Model Supply SCALE DOCUMENTATION SCALE DRAWINGSPHOTOS BOOKLETS MODEL PLANS 1983 AIRPLANE CATALOG $260 REPLA-TECH 1983ThiAIONAL LsANS 49U00 MC KENZIE HWy OREGON e74Be product can II recommendSUPER HAND SANDER confidence HOBBIESTSee Hobby Dealer Y DEALERCa/l Distributor ANy ART GROSS ENTERPRISES 12516 MAPLEWOOD AVE EDMONDS WA 98020 starting point Horsepower ect airplane will fly like brick dont have good engine Whats wont achieve op timum trim until have great engine Its often too difficult distinguish between trim problems marginal horsepower problems particularly new un familiar airplane inexperienced Stunt flier may have real problem because weak engine may run perfectly should know Ive share Once have basic trim settings have pitch roll reasonably well adjusted some telltale signs can look spot inadequate engine Does airplane fall side other top wingover 2 Does airplane bobble drop outboard wing hard bottom inside corners particularly triangles hourglasses 3 lose line tension top segments square eight 4 Does airplane wander off course overhead eights 5 lose line tension first loop cloverleaf can related other problems such trim wrong prop flying too slowly likely related sufficient power particularly airplane built properly going SSF Serious Stunt Flier Im afraid will have learn something about engines Im also sorry say ideal out-of-the-box en gine can buy Stunt closest thing available opinion Supertigre 46my recommendation beginner frustrations engines led four-year continuing study very quickly learned what made good Stunt engine began experimenting rewards beyond wildest dreams fruit labor now-famous infamous modified K&B 40s Les McDonald used win last two World Cham pionships engines definitely hy brids require extensive reworking achieve kind performance want am currently tinkering Max 40 FSR Stunt Max 45 FSR both show great promise Once have found great en gine make necessary timing com bustion chamber measurements define refer article suhject PAMPA Stunt News first quarter 1980 Once youve done can correct deviations next engine powerful engine can really make life easier dont neglect all-important facet Let conclude listing priorities success competition Stunt flying order importance well-designed well-built airplane 2 powerful engine 3 good turbulence-free flying site 4 much practice 5 family support thanks Les McDonald unbe lievable support Dave Hemstrought helpful coaching Christian fellow ship Kent Rogers started out right track Model Aviation opportunity write article would pleased help anyone interested Stunt just drop note Stan Powell 106 Jay Circle Moore SC 29369 1 also advise join PAMPA Contact Wynn Paul 1640 Maywick Drive Lexington KY 40504 AJ-2/Berliner Continued page 94 ing summer 1979 Smith Niemi reviewed series designs cal culations Smith done during previous 10-15 years Once plan agreed upon construction drawings started Smith fall 1979 two months later Niemi began building Smith continued designing drawing helping construction goal sweeping L-B-F 500 fuselage built-up fiberglass sandwich bulkheads foam used fill spaces between result shaped contoured templates covered glass aramid fiber fabrics ep oxy resin after foam material removed order produce monocoque fuselage shell Eddy Clark talented Green ville SC enthusiast did lot superb forming lay-up work Smith admits molded fuselage might much 50 pounds lighter would have involved additional work building buck female molds one-piece wing built similarly plugged slot bottom fuselage Most wing D-tube section ahead full-span spar fuel tank side holding 15 gallons flaps electrically operated Like fuselage wing built molds might somewhat lighter landing gear single-leaf aluminum-spring type snug-fitting fi berglass wheel pants engine fuelinjected air-cooled Lycoming 10-360 Smith rates 215 hp thanks careful sembly tuning turns two-bladed constant-speed propeller After 20 months construction last three months 16-hoursa-day-seven-days-a-week variety AJ-2 rolled out flown July 15 1981 Plans methodical flight test program went out window L-B-F 2/2 weeks off time Smith left Fond du Lac put about 15 hours shiny new airplane satisfied would meet original design specifica tions though lot little things put off calmer times Smith AJ-2 got Wis consin created sensation airplane designed built special reason win Oshkosh 500 No major compromises made would also useful pylon racing touring true efficiency racer Sitting ramp Fond du Lac Skyport looked like winner its pointy aluminum spin ner its panted tail wheel Rumors swarmed like lake flies nearby Lake Winnebago After listening few wild estimates AJ-2s top speed could help feel pity its opponents carefully prepared steeds suddenly looked like plow horses competitions won ramp hangar won sky would up Smith show air plane fast stingy gas could fly full 500 miles stop ping Regardless well-designed built AJ-2 clogged fuel line loose connection could force out just easily could interrupt flight some rickety old biplane 170 Model Aviation

Stan Powell poses Dove 650 awards won 1982 National ContestPAMPA Concours dElegance 8th Precision Aerobatics model awarded 19 out possIble 20 appearance points model 1982 Nats Its truly beautiful well-designed model ______Stan Powulls Iin3 wiEiU ~Stan Powell THERE ARE MANY addictive influences society read about common ones daily newspapers Little did realize day spring 1975 about become addict just finished building workshop house itching find proj x m, __ -U —w ect accompanied wife Sandy craft shop shopping spied small model airplane department other side store can guess what happened left store Sandy goodies minea lop Flite Nobler kit Later summer Sandy made detour vacation Southeastern Regional Championships Winston-Salem NC watched Les McDonald Gene Schaffer battle out first place Expert Precision Aerobatics Boy im pressed wanted what ing badly mouth watered itthe injection did inI hooked Since day Stunt flying has occupied prominent part life FortThis plane won Control Line Precision Aerobatics Concours dElegance award 1982 Nationals know has what takes looks department author/designer went finish very respectable eighth event Subsequently won 1982 King Orange International Design philosophies worthy note 84 Model Aviation nately God blessed perfect wife family have actively supported drive become best Now know Im coming lets talk about Dove 650 airplane represents composite best features previous airplanes course some borrowed ideas main theme airplanes has sim plicity reliability competition air plane must support flier burden him example contest see fliers cant get engines started because fancy cowl design prevents normal choking about guys spend 30 minutes changing engine fuel tank tank should removable dis turbing engine Doves engine tank can replaced ready go again before flying buddy has completed flight provided doesnt crash Time flying site contest precious build airplanes functional first priority pretty second Dove 650 September 1983 85 Left Access engine intake choking quick starts criteria cowl design Engine cooling ability adequate Right cowl removed engine compartment comes view Note through-the-tank tie-down tank can removed quickly needed Engine shown OS Max 40 FSR-S author especially modified use CL Precision Aerobatics flying Unique lettering wing done aid stencils cut Contac paper Photo-enlarged Chart-Pac graphics lettering guide lettering design Trim panel lines India ink applied Rapidograph technical pen Note precise hinge-line fit flaps Brushea siuminum spinner ano simulated smoked-glass canopy add distinction overall finish trim Martine muffler tapped pressure-uniflo tank operation proves both possible Another subtle feature Doves design landing gear flights have seen thought great scored low Think back What did takeoff landing look like Theres better chance werent up snuff Front wheels too far rear ward /2 can really upset way airplane lands too far forward will cause porpoise too far rearward will cause bounce too easily tail gear too short can cause airplane lift off too quickly its too long will difficult make gradual smooth lift-off posi tion Doves gears optimized give consistent 35 -point takeoffs landings Doves aerodynamic proportions bit unusual compared current crop competitive Stunters gen erally have long tail moments large tail areas stability plane achieves same effect lengthening nose moment instead combination control surface areas moments high aspect ratio wing control hook-up designed provide super stability still have ability turn lightning-sharp corners ob served Dove 650 1982 Nats will attest its cornering ability Another advantage using shorter tail moment reduced weight build wing stab elevators foam leaving very little margin building errors invariably add weight Remember unnecessary gram weight behind CG requires up twice amount added nose balance purposes inertia comes play SuppQse tail section came out too heavy bury 2 oz lead I/A BALSA SHEET BALSA BLOCKSLEASING EDGEMAPLE LANSING SHAPE HOLLOW AGJLSYABLE LAG 0/5 GUISE 4 WING PLAN 1INBOARD -5 RETT ,NGES ROOT FOAM WING TEMPLATE F MAPIE MOTORF-I MGUNTS 1/4 BASOWOOSI/H BALSA 355 PLY I/IA PLY DOUBLERS1 S/B 1/2 MAPLE3/32 PLY MOTOR MOUNTS I/U-i 3/IA TUBA t AD TANB NS BOLT-~ _ VECO SPINNERVBPLY BALSA FILLER BLOCKSAIR EARAUST ENGINE AG -AUBALSA I/55 BRASS I/B COWL Sb ES K IS/A NOTE FUE TANK BUS S/IA BRASS TUBE SLEEVE THRO THE CENTER FOR 5/52 MOONTING BOLT nose balance pitch airplane still within reasonable weight limits may have thought werent hurt Wrong law inertia roughly states body traveling straight line will continue move along line until force acts upon change its course force needed directly proportional mass weight moving body heavy nose tail though balanced will require force change direction bottom line youre going need horsepower youll demanding con trol surfaces also works reverse Once youve got airplane turning particularly corner its going take force change straight flight Todays larger airplanes require control system greater strength durability old standard Nobler hookup order handle strong gusty winds frequently found contests Doves con trol system designed thought mind control setup gives relatively high handle movement relation control sur face movement groovy flight less sensitivity also allows greater 86 Model Aviation L dove logo vertical f also made use stencil Contac paper plus Scotch Fine Line Tape Stan says logo has special significance him Stans unique control hookup two pieces plastic can see pushrod guides havent yet affixed formers Flaps taped neutral aligning controls FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 3 B BALSA T P LITE PLY HIBLETI 304 ACING WHEELS MOUNTDOG BA SA FUPELITE BELLCRANBMUSIC WIRE L GLEADNG EDGE7 WIND SHEETING II SS U - ID -TI UH BALSA SPUR-WI 0 VIEW FULL DEPTH OUTBOARD WINGH0-I TRIM DAT TOI ERIT PUSHRUD1W IBALSA 0--INSERT FLAPSI 3H C DRAIN FLAPS I 332 MW30R BALSA SPARTAPER TD OM_____ --PSSHRODTOPELITE HORN OH BALSA I 308 BALSA---NUTE JOIN STAR po---HALUES TOGETHER3032 BALSA THEN REINFORCE WITH GLASS CLOTH SHAPE GE FUSELAGE TOPWHEEL PANTSELU1zzzzm-F-MUSIC WIRE OR BALSA HORN 2 LEFT- 2 RIGHTFOAM STABILIZER B ELEVATOR TEMPLATES106 BALSA SHEETING SUER FOAM CONSTRUCTIONII 1030 PLYWOODF-3AF-4IOBB ELOOR- F-SALGAPUSHRODSOW BALSA SHEET OR BALSAF-6SUPPORT OH BALSAI 3030 PLOF-3BSHEET RUDDER OFFSET 5 LSA BLOCEFIN USELADE TOPSILVERPR BALSA SHEET SIDES N DOUBLERS -L0-102BALSA SPARS 10 32 RODF-3ArflUUI II II -F-ATEDF-A #OR SDI/H BALSA T P 3032 PLYWOOD3032 MWI/A SD BASABALSA BELLORASH MNT PLATEPUSHHODlUG PLY PLATES 101 I/B MUSIC WIRE FUSELAGE SIDE VIEW LANDING SEAR STAN POWELL S I/O BALSA BLOCK I/IA MASIC WIBE EUSELAGE BOTTOM 3/4 SID B6VE TA LW H EEL BALSA WHEEL PANTS ______650 0I23456 TRACING BY YOE DEMARCO gives greater leverage resulting air- rather unusual rear pushrod hookup plane drive through allows identical leverage applied maneuvers rather wrist flick flaps elevators reverse-mounted /1 landing gear treatment pure class seen either above below Note music wire skid bottom rear wheel pant Thats prevent damage wheel pants event rough landingand its characteristic attention details throughout whole model freedom selection line spacing handle pushrods farther out horns standard Nobler hookup September 1983 87 belicrank matter personal preference usual rear up-line' hookup should work just well Both flap elevator horns bushed 3/32-in ID hard brass tubing handy silver soldering might consider making own horns /x-in piano wire reduce flexing control surfaces next air plane will have beefed-up horns Construction am slow builder mainly because family obligations thought completing project complex competition Stunt ship can sometimes seem staggering after number years modeling thought has caused hesitate making start overcame fear looking total construc tion project group mini-projects example day Ill cut foam cores next day Ill make control horns pushrods Ill make skins etc di viding project mentally smaller jobs task doesnt seem insurmountable Ideally individual parts should completed before assembly begins really doesnt matter part constructed first just start suits fancy Wing usually build first wing critical part want con centrate interest peak templates shown plan foam-core wing can easily modi fied standard C- D-tube built-up con struction choose built-up route recommend rib spacing no wider 1 /2 help prevent plankingfrom sagging between ribs Very fine quality foam-core wings can purchased personally like feeling comes knowing built whole thing Lets assume purchased foam wing anyway complete sheet ing leading edge installed Before pro ceeding trace outline wing root cross section onto cardboard later use After have installed hardwood land ing gear blocks Hobbypoxy Formula #2 epoxy weight per panel should 4-4V4 oz maximum Next bellcrank front pushrod assembly installed length front pushrod determined holding flap horn neutral position back wing panel tape also holding bellcrank assembly neu tral position centered balsa center spar required length measured After making pushrod installing onto bellcrank completed assembly including lead-outs aligned tackglued onto outboard wing spar pushrod exit slot cut inboard panel Youre ready join two panels method joining panels differs norm Most people use foam blocks cores cut cradle lay panels gluing method did work well always got unwanted anhedral dihedral method involves joining panels together trailing edges TE pinned building board such wing per pendicular board First draw straight line building board several inches longer wing trailing edge wing will centered line Pin outboard panel controls installed onto board TE centered line Fit align inboard panel such makes good gapfree joint outboard panel satisfied fit alignment ap ply Hobbypoxy Formula #2 both panels join Check anhedral/dihedral placing straightedge board against TE side wing Adjust neutral extra support epoxy cures brace panels four bricks wrapped masking tape careful use min imum amount glue very little should ooze joint Wing tips should installed next Carve X 2 x 12 blocks have laminated cyanoacrylate CyA glue block should weigh 0 oz max imum Carve roughly shape hol low Install adjustable lead-out guide install both tips epoxy loom After epoxy has dried glue sheeting tips CyA finish carving shape time 2 ply bellcrank braces glued place Next strip /32 X balsa glued over wing center joint CyA edges strip feathered flow wing skin strip added cover epoxy avoid pos sible incompatibility later installing wing fuselage polyester resin glass cloth Flaps carved tweight Cgrain balsa planks equal rigidity Keep taper minimum /4 TE preserve rigidity After beveling leading edge LE apply two coats polyester resin beveled area TE wing sanding between coats Next stall flap horn Hobbypoxy Formula #2 Cut slots wing TE install Klett hinges Formula #2 1 pre lubricate hinge axles light coating Vaseline protect against glue seepage Notch slot flap assembly install flaps front pushrod slipped onto flap horn installed permanently time Neither should stationary flap ends installed point wing now ready installing fuselage should weigh maximum 125 oz landing gear Fuselage design box-style hol lowed top bottom blocks important select very lightweight /x-in sides identical grain assure straight fuselage Cut out identical fuselage sides draw wing line outside Note wing thrust stabilizer lines par allel top fuselage sides easy alignment Glue maple engine mounts onto fuselage sides polyester resin apply resin both surfaces Note mounts routed out /6 behind F-I Align mounts top sides using piece /4 balsa positioning guide Weight mounts until resin has cured /6 plywood doublers glued place same manner use polyester resin glue wherever possible because weighs less epoxy Locate mark positions F-I F-2 side side fuse lage down flat surface glue F-I place CyA holding per pendicular right-angle template Re peat F-2 CyA-glue other side F-I F-2 aligning flat surface Continued page 168 88 Model Aviation us necessary obtain top appearance points well competitions especially national level Doves design inspired workmanship can help winner Advanced design features never before seen R/C Helicopter Tnple ball bearings main tail rotorhubsLight weight metal construction AutorotationLow cost parts Controls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Oual ball bearing tail pitch controlSpiral hypoid gears main tail drives EASTERN US HELICENTER EAST 412/342-5500 ozone dont leave stains 11 Multi-motor aircraft very easy Electrics because electric motors usually well-matched performance charac teristics powered same bat tery several motors will run run down same rate No chance losing side really great Scale Some local fliers have several twins quads operational 12 Electric motors can fully con trolled flight can done onoff fashion power steps in-between fully-variable speed control zero maximum Try gas 13 Electric power virtually vibrationfree often allows simple radio stallation less foam packing shock mounting needed stallations nearly rigid receivers servos etc squeezed tightly go along 14 Electric simply perfect Wrong Like everything else life Electrics have both limitations capability require ments proper handling Example just conscientious modeler should careful allow gas engine overheat also should such modeler pay close atten tion battery heat series will attempt thorough honest realistic include everything didnt know needed know about Electrics realize some writing above makes redundant points purpose fill pages same words rather express range thoughts sev eral ways give reader variety viewpoint perspective next installment series will get electric power systemsmotors batteries some other Electric goodies Later well get installations suitable planes Till just ponder possibilities Any questions related part series may directed SASE author Bob Kopski 25 West End Dr Lans dale PA 19446 Please resist temptation jump ahead have yet write series Im unable handle letters require books worth writing answer properly Otherwise will attempt respond expedient fashion Dove 650/Powell Continued page 88 assure sides parallel CyA-glue sq tail post side fuselage flat building board draw two paral lel lines slightly longer fuselage separated width fuselage Draw third parallel line centered exactly between first two Line up pin front part fuselage board top down exactly between lines Make sure its pinned securely rigidly Adjust pin glue sides together tail post such tail end centered exactly centerline Pin F-3 F-4 F-5 F-6 place glue CyA sizes formers shown plan nominal should cut actual sizes needed rest fuselage relatively straightforward Glue /2 ply tank compartment floor place over engine mounts install blind nut tank hold-down Drill engine mount holes install blind mounting nuts Add nose filler blocks A-in top block insert building motor spinner no cylinder mounted A2-in brass shims shown plan Tack-glue top block bottom block cowl assembly place carve fuselage shape piece cowl removed completed including tie-downs after top bottom blocks removed hollowed carved hollowed top bottom blocks should weigh about 1/4-I oz total Reinforce inside nose cowl fiberglass cloth polyester resin Fuel-proof entire engine com partment several heavy coats resin stab-elevator assembly original model constructed foam cores shown Lightening holes foam shown plan may cut reduce weight built-up assembly will work well key strength rigidity light ness center joint stab should reinforced glass cloth completed assembly should weigh 1-20 oz fin rudder assembly can made very lightweight V4 /6 sheet weight shouldnt exceed oz Assembly advise reweigh com ponent parts before assembly sure within stated tolerances particularly tail section anything too heavy build over last chance correct weight problem first step install wing fuselage Draw cross section wing root proper location fuselage sides cut out sections Next re move part fuselage sides bot tom doublers TE allow installation wing through bottom use jig align wing fuse lage follows Take piece building board about 60 inches square lay flat surface ie table floor Draw straight line down center board fuselage will centered line Determine TE wing would intersect line point draw line across board perpendicular first line TE will lined up along line Pin fuselage top-down centered fuselage line Place wing fuselage line up TE TE line Next line up centers LE TE wing line drawn fuselage Also vertical sides fuse lage must perpendicular wing Once have wing aligned fuselage three directions pin ned place tack-glue CyA Proper 168 Model Aviation O New Expandable concept RIC Helicopters Competitor will fly 45050 or60 size engines o model can take novice flying winning AMA expert class alignment critical- con trolling weight dont rush things Fill gaps between wing fuselage soft balsa strips CyA glue previously-removed fuselage bottom now replaced wing permanently glued place reinforced polyester resin 15 oz/yd2 glass cloth Glue tail-wheel gear epoxy brace balsa strips extra strength bottom fuselage block glued back place permanently CyA Carve glue place inserts between flaps fuselage Using inserts guides tape flaps neutral glue stationary flap extensions sure neutral position Leave flaps taped neutral installing stabelevator assembly Aligning airfoil-shaped stab flat fuselage top can difficult unless have good procedure Mine build-up bottom center stab balsa strips stab sits top fuselage angle attack zero parallel wing top fuselage Now per manently install pushrod onto ele vator horn Mark position stab fuselage sides cut out 5/i6 x 3/4-in mounting slots Thread pushrod through fuselage temporarily hook up controls shown plans Line up elevators neutral stab square seen above behind pin securely place Check recheck alignment Once satisfied tack-glue stab place CyA Remove masking tape flaps check controls binding Glue rear pushrod guides place Again check binding controls should absolutely free Solder pushrod retaining washer again checking binding Lubri cate horn bushings Cut top block two just front stab permanently attach front part CyA glue Recheck stab alignment will probably off little after attaching top block Realign stab necessary fit glue rear portion top block place taking care exert pres sure stab Finish gluing stab per manently CyA filling gaps soft balsa strips Next align CyA-glue rudder/fin assembly place Carve glue inserts between elevators fuselage Install struts wheel pants landing gear being careful align ment use K&B polyester resin Prather phenolic micro-balloons fillets Although little trouble system lighter epoxy-based fillets dope adheres very well usual techniques apply except pot life mix short apply area time fillets can easily sanded shape 100-grit gar net paper glued rounded edge strip 9/ balsa Finishing use traditional dope-talc silkspan finish will add about 7 oz weight Start fixing little dents dinks~ handle airplane kid gloves out use dope talc paste fill dents sand airplane 400-grit vacuum clean Next apply coat Aerogloss clear over fillets two coats Sig Lite-Coat over entire airplane sanding lightly between coats Cover entire airplane 00 silkspan using 25/75 Lite-Coat/thinner affix paper silkspan should slightly damps help wrinkle removal After applying silkspan brush coat Lite-Coat carefully sand away overlaps silkspan Brush two coats Lite-Coat sand lightly Brush coat mixture /2 pint Lite Coat /4 pint thinner 2 oz Johnsons Baby Powder Let dry overnight sand off mixture 400-grit sandpaper padded block Repeat second sealer application necessary Vacuum away dust spray two mist-coats 50/50 Lite-Coat/thinner fol lowed mist-coat Sig silver silver coat will make imperfections show up like neon sign After fixing remaining flaws spray two mist-coats 50/50 Lite-Coat thinner Base color trim colors now added use various combinations Scotch Fine Line Tape frisket material masking Numbering lettering wing well Dove logo tail painted benefit stencils cut Contac Thin 1 qts Sig Lite-Coat 45/55 dope/thinner using 70% thinner/30% Sig Re tarder Spray two coats day morning evening until clear applied Let clear cure several days before go fly ft Keep out strong sunlight least week After finish has dried out least three weeks wash grease off wet-sand matte finish rub-out using Turtlewax white polishing compound finished weight should 49-52 oz range best performance fore first flight adjust balance point necessary 2 2/4 behind leading edge wing Check make sure outboard wing drops slowly pivoting airplane spinner rear fuselage bottom Mine trimmed out ip weight Lead-outs should positioned about one-third back slot L P0 Box 3957 Torrance CA 90510 GET ORGANIZED hee s set 0 4 sturdy files Sal holds aver 4 yeas youi lavonle 8a11 magazines 4 MAG FILES $495 Send $495 plan $1 00 lot postage handling 0GM INDUSTRIES Ps Box 398-K DOVER NH 03820 September 1983 169 paper Masking flash gently rubbed away damp cloth Soft Scrub trim color has added clean entire airplane Dupont Prep-sol rubbing alcohol Apply ink lines work ing section time add rub-ons now ready final clear coats 21 Old Time 12 HL Gliders 11 Contest Rubber Send 50 for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pdfiers & LOiS 040 GOOO SflJFF FAI Model Supply SCALE DOCUMENTATION SCALE DRAWINGSPHOTOS BOOKLETS MODEL PLANS 1983 AIRPLANE CATALOG $260 REPLA-TECH 1983ThiAIONAL LsANS 49U00 MC KENZIE HWy OREGON e74Be product can II recommendSUPER HAND SANDER confidence HOBBIESTSee Hobby Dealer Y DEALERCa/l Distributor ANy ART GROSS ENTERPRISES 12516 MAPLEWOOD AVE EDMONDS WA 98020 starting point Horsepower ect airplane will fly like brick dont have good engine Whats wont achieve op timum trim until have great engine Its often too difficult distinguish between trim problems marginal horsepower problems particularly new un familiar airplane inexperienced Stunt flier may have real problem because weak engine may run perfectly should know Ive share Once have basic trim settings have pitch roll reasonably well adjusted some telltale signs can look spot inadequate engine Does airplane fall side other top wingover 2 Does airplane bobble drop outboard wing hard bottom inside corners particularly triangles hourglasses 3 lose line tension top segments square eight 4 Does airplane wander off course overhead eights 5 lose line tension first loop cloverleaf can related other problems such trim wrong prop flying too slowly likely related sufficient power particularly airplane built properly going SSF Serious Stunt Flier Im afraid will have learn something about engines Im also sorry say ideal out-of-the-box en gine can buy Stunt closest thing available opinion Supertigre 46my recommendation beginner frustrations engines led four-year continuing study very quickly learned what made good Stunt engine began experimenting rewards beyond wildest dreams fruit labor now-famous infamous modified K&B 40s Les McDonald used win last two World Cham pionships engines definitely hy brids require extensive reworking achieve kind performance want am currently tinkering Max 40 FSR Stunt Max 45 FSR both show great promise Once have found great en gine make necessary timing com bustion chamber measurements define refer article suhject PAMPA Stunt News first quarter 1980 Once youve done can correct deviations next engine powerful engine can really make life easier dont neglect all-important facet Let conclude listing priorities success competition Stunt flying order importance well-designed well-built airplane 2 powerful engine 3 good turbulence-free flying site 4 much practice 5 family support thanks Les McDonald unbe lievable support Dave Hemstrought helpful coaching Christian fellow ship Kent Rogers started out right track Model Aviation opportunity write article would pleased help anyone interested Stunt just drop note Stan Powell 106 Jay Circle Moore SC 29369 1 also advise join PAMPA Contact Wynn Paul 1640 Maywick Drive Lexington KY 40504 AJ-2/Berliner Continued page 94 ing summer 1979 Smith Niemi reviewed series designs cal culations Smith done during previous 10-15 years Once plan agreed upon construction drawings started Smith fall 1979 two months later Niemi began building Smith continued designing drawing helping construction goal sweeping L-B-F 500 fuselage built-up fiberglass sandwich bulkheads foam used fill spaces between result shaped contoured templates covered glass aramid fiber fabrics ep oxy resin after foam material removed order produce monocoque fuselage shell Eddy Clark talented Green ville SC enthusiast did lot superb forming lay-up work Smith admits molded fuselage might much 50 pounds lighter would have involved additional work building buck female molds one-piece wing built similarly plugged slot bottom fuselage Most wing D-tube section ahead full-span spar fuel tank side holding 15 gallons flaps electrically operated Like fuselage wing built molds might somewhat lighter landing gear single-leaf aluminum-spring type snug-fitting fi berglass wheel pants engine fuelinjected air-cooled Lycoming 10-360 Smith rates 215 hp thanks careful sembly tuning turns two-bladed constant-speed propeller After 20 months construction last three months 16-hoursa-day-seven-days-a-week variety AJ-2 rolled out flown July 15 1981 Plans methodical flight test program went out window L-B-F 2/2 weeks off time Smith left Fond du Lac put about 15 hours shiny new airplane satisfied would meet original design specifica tions though lot little things put off calmer times Smith AJ-2 got Wis consin created sensation airplane designed built special reason win Oshkosh 500 No major compromises made would also useful pylon racing touring true efficiency racer Sitting ramp Fond du Lac Skyport looked like winner its pointy aluminum spin ner its panted tail wheel Rumors swarmed like lake flies nearby Lake Winnebago After listening few wild estimates AJ-2s top speed could help feel pity its opponents carefully prepared steeds suddenly looked like plow horses competitions won ramp hangar won sky would up Smith show air plane fast stingy gas could fly full 500 miles stop ping Regardless well-designed built AJ-2 clogged fuel line loose connection could force out just easily could interrupt flight some rickety old biplane 170 Model Aviation

Stan Powell poses Dove 650 awards won 1982 National ContestPAMPA Concours dElegance 8th Precision Aerobatics model awarded 19 out possIble 20 appearance points model 1982 Nats Its truly beautiful well-designed model ______Stan Powulls Iin3 wiEiU ~Stan Powell THERE ARE MANY addictive influences society read about common ones daily newspapers Little did realize day spring 1975 about become addict just finished building workshop house itching find proj x m, __ -U —w ect accompanied wife Sandy craft shop shopping spied small model airplane department other side store can guess what happened left store Sandy goodies minea lop Flite Nobler kit Later summer Sandy made detour vacation Southeastern Regional Championships Winston-Salem NC watched Les McDonald Gene Schaffer battle out first place Expert Precision Aerobatics Boy im pressed wanted what ing badly mouth watered itthe injection did inI hooked Since day Stunt flying has occupied prominent part life FortThis plane won Control Line Precision Aerobatics Concours dElegance award 1982 Nationals know has what takes looks department author/designer went finish very respectable eighth event Subsequently won 1982 King Orange International Design philosophies worthy note 84 Model Aviation nately God blessed perfect wife family have actively supported drive become best Now know Im coming lets talk about Dove 650 airplane represents composite best features previous airplanes course some borrowed ideas main theme airplanes has sim plicity reliability competition air plane must support flier burden him example contest see fliers cant get engines started because fancy cowl design prevents normal choking about guys spend 30 minutes changing engine fuel tank tank should removable dis turbing engine Doves engine tank can replaced ready go again before flying buddy has completed flight provided doesnt crash Time flying site contest precious build airplanes functional first priority pretty second Dove 650 September 1983 85 Left Access engine intake choking quick starts criteria cowl design Engine cooling ability adequate Right cowl removed engine compartment comes view Note through-the-tank tie-down tank can removed quickly needed Engine shown OS Max 40 FSR-S author especially modified use CL Precision Aerobatics flying Unique lettering wing done aid stencils cut Contac paper Photo-enlarged Chart-Pac graphics lettering guide lettering design Trim panel lines India ink applied Rapidograph technical pen Note precise hinge-line fit flaps Brushea siuminum spinner ano simulated smoked-glass canopy add distinction overall finish trim Martine muffler tapped pressure-uniflo tank operation proves both possible Another subtle feature Doves design landing gear flights have seen thought great scored low Think back What did takeoff landing look like Theres better chance werent up snuff Front wheels too far rear ward /2 can really upset way airplane lands too far forward will cause porpoise too far rearward will cause bounce too easily tail gear too short can cause airplane lift off too quickly its too long will difficult make gradual smooth lift-off posi tion Doves gears optimized give consistent 35 -point takeoffs landings Doves aerodynamic proportions bit unusual compared current crop competitive Stunters gen erally have long tail moments large tail areas stability plane achieves same effect lengthening nose moment instead combination control surface areas moments high aspect ratio wing control hook-up designed provide super stability still have ability turn lightning-sharp corners ob served Dove 650 1982 Nats will attest its cornering ability Another advantage using shorter tail moment reduced weight build wing stab elevators foam leaving very little margin building errors invariably add weight Remember unnecessary gram weight behind CG requires up twice amount added nose balance purposes inertia comes play SuppQse tail section came out too heavy bury 2 oz lead I/A BALSA SHEET BALSA BLOCKSLEASING EDGEMAPLE LANSING SHAPE HOLLOW AGJLSYABLE LAG 0/5 GUISE 4 WING PLAN 1INBOARD -5 RETT ,NGES ROOT FOAM WING TEMPLATE F MAPIE MOTORF-I MGUNTS 1/4 BASOWOOSI/H BALSA 355 PLY I/IA PLY DOUBLERS1 S/B 1/2 MAPLE3/32 PLY MOTOR MOUNTS I/U-i 3/IA TUBA t AD TANB NS BOLT-~ _ VECO SPINNERVBPLY BALSA FILLER BLOCKSAIR EARAUST ENGINE AG -AUBALSA I/55 BRASS I/B COWL Sb ES K IS/A NOTE FUE TANK BUS S/IA BRASS TUBE SLEEVE THRO THE CENTER FOR 5/52 MOONTING BOLT nose balance pitch airplane still within reasonable weight limits may have thought werent hurt Wrong law inertia roughly states body traveling straight line will continue move along line until force acts upon change its course force needed directly proportional mass weight moving body heavy nose tail though balanced will require force change direction bottom line youre going need horsepower youll demanding con trol surfaces also works reverse Once youve got airplane turning particularly corner its going take force change straight flight Todays larger airplanes require control system greater strength durability old standard Nobler hookup order handle strong gusty winds frequently found contests Doves con trol system designed thought mind control setup gives relatively high handle movement relation control sur face movement groovy flight less sensitivity also allows greater 86 Model Aviation L dove logo vertical f also made use stencil Contac paper plus Scotch Fine Line Tape Stan says logo has special significance him Stans unique control hookup two pieces plastic can see pushrod guides havent yet affixed formers Flaps taped neutral aligning controls FULL-SIZE PLANS AVAILABLE. SEE PAGE 172 3 B BALSA T P LITE PLY HIBLETI 304 ACING WHEELS MOUNTDOG BA SA FUPELITE BELLCRANBMUSIC WIRE L GLEADNG EDGE7 WIND SHEETING II SS U - ID -TI UH BALSA SPUR-WI 0 VIEW FULL DEPTH OUTBOARD WINGH0-I TRIM DAT TOI ERIT PUSHRUD1W IBALSA 0--INSERT FLAPSI 3H C DRAIN FLAPS I 332 MW30R BALSA SPARTAPER TD OM_____ --PSSHRODTOPELITE HORN OH BALSA I 308 BALSA---NUTE JOIN STAR po---HALUES TOGETHER3032 BALSA THEN REINFORCE WITH GLASS CLOTH SHAPE GE FUSELAGE TOPWHEEL PANTSELU1zzzzm-F-MUSIC WIRE OR BALSA HORN 2 LEFT- 2 RIGHTFOAM STABILIZER B ELEVATOR TEMPLATES106 BALSA SHEETING SUER FOAM CONSTRUCTIONII 1030 PLYWOODF-3AF-4IOBB ELOOR- F-SALGAPUSHRODSOW BALSA SHEET OR BALSAF-6SUPPORT OH BALSAI 3030 PLOF-3BSHEET RUDDER OFFSET 5 LSA BLOCEFIN USELADE TOPSILVERPR BALSA SHEET SIDES N DOUBLERS -L0-102BALSA SPARS 10 32 RODF-3ArflUUI II II -F-ATEDF-A #OR SDI/H BALSA T P 3032 PLYWOOD3032 MWI/A SD BASABALSA BELLORASH MNT PLATEPUSHHODlUG PLY PLATES 101 I/B MUSIC WIRE FUSELAGE SIDE VIEW LANDING SEAR STAN POWELL S I/O BALSA BLOCK I/IA MASIC WIBE EUSELAGE BOTTOM 3/4 SID B6VE TA LW H EEL BALSA WHEEL PANTS ______650 0I23456 TRACING BY YOE DEMARCO gives greater leverage resulting air- rather unusual rear pushrod hookup plane drive through allows identical leverage applied maneuvers rather wrist flick flaps elevators reverse-mounted /1 landing gear treatment pure class seen either above below Note music wire skid bottom rear wheel pant Thats prevent damage wheel pants event rough landingand its characteristic attention details throughout whole model freedom selection line spacing handle pushrods farther out horns standard Nobler hookup September 1983 87 belicrank matter personal preference usual rear up-line' hookup should work just well Both flap elevator horns bushed 3/32-in ID hard brass tubing handy silver soldering might consider making own horns /x-in piano wire reduce flexing control surfaces next air plane will have beefed-up horns Construction am slow builder mainly because family obligations thought completing project complex competition Stunt ship can sometimes seem staggering after number years modeling thought has caused hesitate making start overcame fear looking total construc tion project group mini-projects example day Ill cut foam cores next day Ill make control horns pushrods Ill make skins etc di viding project mentally smaller jobs task doesnt seem insurmountable Ideally individual parts should completed before assembly begins really doesnt matter part constructed first just start suits fancy Wing usually build first wing critical part want con centrate interest peak templates shown plan foam-core wing can easily modi fied standard C- D-tube built-up con struction choose built-up route recommend rib spacing no wider 1 /2 help prevent plankingfrom sagging between ribs Very fine quality foam-core wings can purchased personally like feeling comes knowing built whole thing Lets assume purchased foam wing anyway complete sheet ing leading edge installed Before pro ceeding trace outline wing root cross section onto cardboard later use After have installed hardwood land ing gear blocks Hobbypoxy Formula #2 epoxy weight per panel should 4-4V4 oz maximum Next bellcrank front pushrod assembly installed length front pushrod determined holding flap horn neutral position back wing panel tape also holding bellcrank assembly neu tral position centered balsa center spar required length measured After making pushrod installing onto bellcrank completed assembly including lead-outs aligned tackglued onto outboard wing spar pushrod exit slot cut inboard panel Youre ready join two panels method joining panels differs norm Most people use foam blocks cores cut cradle lay panels gluing method did work well always got unwanted anhedral dihedral method involves joining panels together trailing edges TE pinned building board such wing per pendicular board First draw straight line building board several inches longer wing trailing edge wing will centered line Pin outboard panel controls installed onto board TE centered line Fit align inboard panel such makes good gapfree joint outboard panel satisfied fit alignment ap ply Hobbypoxy Formula #2 both panels join Check anhedral/dihedral placing straightedge board against TE side wing Adjust neutral extra support epoxy cures brace panels four bricks wrapped masking tape careful use min imum amount glue very little should ooze joint Wing tips should installed next Carve X 2 x 12 blocks have laminated cyanoacrylate CyA glue block should weigh 0 oz max imum Carve roughly shape hol low Install adjustable lead-out guide install both tips epoxy loom After epoxy has dried glue sheeting tips CyA finish carving shape time 2 ply bellcrank braces glued place Next strip /32 X balsa glued over wing center joint CyA edges strip feathered flow wing skin strip added cover epoxy avoid pos sible incompatibility later installing wing fuselage polyester resin glass cloth Flaps carved tweight Cgrain balsa planks equal rigidity Keep taper minimum /4 TE preserve rigidity After beveling leading edge LE apply two coats polyester resin beveled area TE wing sanding between coats Next stall flap horn Hobbypoxy Formula #2 Cut slots wing TE install Klett hinges Formula #2 1 pre lubricate hinge axles light coating Vaseline protect against glue seepage Notch slot flap assembly install flaps front pushrod slipped onto flap horn installed permanently time Neither should stationary flap ends installed point wing now ready installing fuselage should weigh maximum 125 oz landing gear Fuselage design box-style hol lowed top bottom blocks important select very lightweight /x-in sides identical grain assure straight fuselage Cut out identical fuselage sides draw wing line outside Note wing thrust stabilizer lines par allel top fuselage sides easy alignment Glue maple engine mounts onto fuselage sides polyester resin apply resin both surfaces Note mounts routed out /6 behind F-I Align mounts top sides using piece /4 balsa positioning guide Weight mounts until resin has cured /6 plywood doublers glued place same manner use polyester resin glue wherever possible because weighs less epoxy Locate mark positions F-I F-2 side side fuse lage down flat surface glue F-I place CyA holding per pendicular right-angle template Re peat F-2 CyA-glue other side F-I F-2 aligning flat surface Continued page 168 88 Model Aviation us necessary obtain top appearance points well competitions especially national level Doves design inspired workmanship can help winner Advanced design features never before seen R/C Helicopter Tnple ball bearings main tail rotorhubsLight weight metal construction AutorotationLow cost parts Controls designed inverted flightA11 versions fully aerobatic AMA/FAI patterns Oual ball bearing tail pitch controlSpiral hypoid gears main tail drives EASTERN US HELICENTER EAST 412/342-5500 ozone dont leave stains 11 Multi-motor aircraft very easy Electrics because electric motors usually well-matched performance charac teristics powered same bat tery several motors will run run down same rate No chance losing side really great Scale Some local fliers have several twins quads operational 12 Electric motors can fully con trolled flight can done onoff fashion power steps in-between fully-variable speed control zero maximum Try gas 13 Electric power virtually vibrationfree often allows simple radio stallation less foam packing shock mounting needed stallations nearly rigid receivers servos etc squeezed tightly go along 14 Electric simply perfect Wrong Like everything else life Electrics have both limitations capability require ments proper handling Example just conscientious modeler should careful allow gas engine overheat also should such modeler pay close atten tion battery heat series will attempt thorough honest realistic include everything didnt know needed know about Electrics realize some writing above makes redundant points purpose fill pages same words rather express range thoughts sev eral ways give reader variety viewpoint perspective next installment series will get electric power systemsmotors batteries some other Electric goodies Later well get installations suitable planes Till just ponder possibilities Any questions related part series may directed SASE author Bob Kopski 25 West End Dr Lans dale PA 19446 Please resist temptation jump ahead have yet write series Im unable handle letters require books worth writing answer properly Otherwise will attempt respond expedient fashion Dove 650/Powell Continued page 88 assure sides parallel CyA-glue sq tail post side fuselage flat building board draw two paral lel lines slightly longer fuselage separated width fuselage Draw third parallel line centered exactly between first two Line up pin front part fuselage board top down exactly between lines Make sure its pinned securely rigidly Adjust pin glue sides together tail post such tail end centered exactly centerline Pin F-3 F-4 F-5 F-6 place glue CyA sizes formers shown plan nominal should cut actual sizes needed rest fuselage relatively straightforward Glue /2 ply tank compartment floor place over engine mounts install blind nut tank hold-down Drill engine mount holes install blind mounting nuts Add nose filler blocks A-in top block insert building motor spinner no cylinder mounted A2-in brass shims shown plan Tack-glue top block bottom block cowl assembly place carve fuselage shape piece cowl removed completed including tie-downs after top bottom blocks removed hollowed carved hollowed top bottom blocks should weigh about 1/4-I oz total Reinforce inside nose cowl fiberglass cloth polyester resin Fuel-proof entire engine com partment several heavy coats resin stab-elevator assembly original model constructed foam cores shown Lightening holes foam shown plan may cut reduce weight built-up assembly will work well key strength rigidity light ness center joint stab should reinforced glass cloth completed assembly should weigh 1-20 oz fin rudder assembly can made very lightweight V4 /6 sheet weight shouldnt exceed oz Assembly advise reweigh com ponent parts before assembly sure within stated tolerances particularly tail section anything too heavy build over last chance correct weight problem first step install wing fuselage Draw cross section wing root proper location fuselage sides cut out sections Next re move part fuselage sides bot tom doublers TE allow installation wing through bottom use jig align wing fuse lage follows Take piece building board about 60 inches square lay flat surface ie table floor Draw straight line down center board fuselage will centered line Determine TE wing would intersect line point draw line across board perpendicular first line TE will lined up along line Pin fuselage top-down centered fuselage line Place wing fuselage line up TE TE line Next line up centers LE TE wing line drawn fuselage Also vertical sides fuse lage must perpendicular wing Once have wing aligned fuselage three directions pin ned place tack-glue CyA Proper 168 Model Aviation O New Expandable concept RIC Helicopters Competitor will fly 45050 or60 size engines o model can take novice flying winning AMA expert class alignment critical- con trolling weight dont rush things Fill gaps between wing fuselage soft balsa strips CyA glue previously-removed fuselage bottom now replaced wing permanently glued place reinforced polyester resin 15 oz/yd2 glass cloth Glue tail-wheel gear epoxy brace balsa strips extra strength bottom fuselage block glued back place permanently CyA Carve glue place inserts between flaps fuselage Using inserts guides tape flaps neutral glue stationary flap extensions sure neutral position Leave flaps taped neutral installing stabelevator assembly Aligning airfoil-shaped stab flat fuselage top can difficult unless have good procedure Mine build-up bottom center stab balsa strips stab sits top fuselage angle attack zero parallel wing top fuselage Now per manently install pushrod onto ele vator horn Mark position stab fuselage sides cut out 5/i6 x 3/4-in mounting slots Thread pushrod through fuselage temporarily hook up controls shown plans Line up elevators neutral stab square seen above behind pin securely place Check recheck alignment Once satisfied tack-glue stab place CyA Remove masking tape flaps check controls binding Glue rear pushrod guides place Again check binding controls should absolutely free Solder pushrod retaining washer again checking binding Lubri cate horn bushings Cut top block two just front stab permanently attach front part CyA glue Recheck stab alignment will probably off little after attaching top block Realign stab necessary fit glue rear portion top block place taking care exert pres sure stab Finish gluing stab per manently CyA filling gaps soft balsa strips Next align CyA-glue rudder/fin assembly place Carve glue inserts between elevators fuselage Install struts wheel pants landing gear being careful align ment use K&B polyester resin Prather phenolic micro-balloons fillets Although little trouble system lighter epoxy-based fillets dope adheres very well usual techniques apply except pot life mix short apply area time fillets can easily sanded shape 100-grit gar net paper glued rounded edge strip 9/ balsa Finishing use traditional dope-talc silkspan finish will add about 7 oz weight Start fixing little dents dinks~ handle airplane kid gloves out use dope talc paste fill dents sand airplane 400-grit vacuum clean Next apply coat Aerogloss clear over fillets two coats Sig Lite-Coat over entire airplane sanding lightly between coats Cover entire airplane 00 silkspan using 25/75 Lite-Coat/thinner affix paper silkspan should slightly damps help wrinkle removal After applying silkspan brush coat Lite-Coat carefully sand away overlaps silkspan Brush two coats Lite-Coat sand lightly Brush coat mixture /2 pint Lite Coat /4 pint thinner 2 oz Johnsons Baby Powder Let dry overnight sand off mixture 400-grit sandpaper padded block Repeat second sealer application necessary Vacuum away dust spray two mist-coats 50/50 Lite-Coat/thinner fol lowed mist-coat Sig silver silver coat will make imperfections show up like neon sign After fixing remaining flaws spray two mist-coats 50/50 Lite-Coat thinner Base color trim colors now added use various combinations Scotch Fine Line Tape frisket material masking Numbering lettering wing well Dove logo tail painted benefit stencils cut Contac Thin 1 qts Sig Lite-Coat 45/55 dope/thinner using 70% thinner/30% Sig Re tarder Spray two coats day morning evening until clear applied Let clear cure several days before go fly ft Keep out strong sunlight least week After finish has dried out least three weeks wash grease off wet-sand matte finish rub-out using Turtlewax white polishing compound finished weight should 49-52 oz range best performance fore first flight adjust balance point necessary 2 2/4 behind leading edge wing Check make sure outboard wing drops slowly pivoting airplane spinner rear fuselage bottom Mine trimmed out ip weight Lead-outs should positioned about one-third back slot L P0 Box 3957 Torrance CA 90510 GET ORGANIZED hee s set 0 4 sturdy files Sal holds aver 4 yeas youi lavonle 8a11 magazines 4 MAG FILES $495 Send $495 plan $1 00 lot postage handling 0GM INDUSTRIES Ps Box 398-K DOVER NH 03820 September 1983 169 paper Masking flash gently rubbed away damp cloth Soft Scrub trim color has added clean entire airplane Dupont Prep-sol rubbing alcohol Apply ink lines work ing section time add rub-ons now ready final clear coats 21 Old Time 12 HL Gliders 11 Contest Rubber Send 50 for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pdfiers & LOiS 040 GOOO SflJFF FAI Model Supply SCALE DOCUMENTATION SCALE DRAWINGSPHOTOS BOOKLETS MODEL PLANS 1983 AIRPLANE CATALOG $260 REPLA-TECH 1983ThiAIONAL LsANS 49U00 MC KENZIE HWy OREGON e74Be product can II recommendSUPER HAND SANDER confidence HOBBIESTSee Hobby Dealer Y DEALERCa/l Distributor ANy ART GROSS ENTERPRISES 12516 MAPLEWOOD AVE EDMONDS WA 98020 starting point Horsepower ect airplane will fly like brick dont have good engine Whats wont achieve op timum trim until have great engine Its often too difficult distinguish between trim problems marginal horsepower problems particularly new un familiar airplane inexperienced Stunt flier may have real problem because weak engine may run perfectly should know Ive share Once have basic trim settings have pitch roll reasonably well adjusted some telltale signs can look spot inadequate engine Does airplane fall side other top wingover 2 Does airplane bobble drop outboard wing hard bottom inside corners particularly triangles hourglasses 3 lose line tension top segments square eight 4 Does airplane wander off course overhead eights 5 lose line tension first loop cloverleaf can related other problems such trim wrong prop flying too slowly likely related sufficient power particularly airplane built properly going SSF Serious Stunt Flier Im afraid will have learn something about engines Im also sorry say ideal out-of-the-box en gine can buy Stunt closest thing available opinion Supertigre 46my recommendation beginner frustrations engines led four-year continuing study very quickly learned what made good Stunt engine began experimenting rewards beyond wildest dreams fruit labor now-famous infamous modified K&B 40s Les McDonald used win last two World Cham pionships engines definitely hy brids require extensive reworking achieve kind performance want am currently tinkering Max 40 FSR Stunt Max 45 FSR both show great promise Once have found great en gine make necessary timing com bustion chamber measurements define refer article suhject PAMPA Stunt News first quarter 1980 Once youve done can correct deviations next engine powerful engine can really make life easier dont neglect all-important facet Let conclude listing priorities success competition Stunt flying order importance well-designed well-built airplane 2 powerful engine 3 good turbulence-free flying site 4 much practice 5 family support thanks Les McDonald unbe lievable support Dave Hemstrought helpful coaching Christian fellow ship Kent Rogers started out right track Model Aviation opportunity write article would pleased help anyone interested Stunt just drop note Stan Powell 106 Jay Circle Moore SC 29369 1 also advise join PAMPA Contact Wynn Paul 1640 Maywick Drive Lexington KY 40504 AJ-2/Berliner Continued page 94 ing summer 1979 Smith Niemi reviewed series designs cal culations Smith done during previous 10-15 years Once plan agreed upon construction drawings started Smith fall 1979 two months later Niemi began building Smith continued designing drawing helping construction goal sweeping L-B-F 500 fuselage built-up fiberglass sandwich bulkheads foam used fill spaces between result shaped contoured templates covered glass aramid fiber fabrics ep oxy resin after foam material removed order produce monocoque fuselage shell Eddy Clark talented Green ville SC enthusiast did lot superb forming lay-up work Smith admits molded fuselage might much 50 pounds lighter would have involved additional work building buck female molds one-piece wing built similarly plugged slot bottom fuselage Most wing D-tube section ahead full-span spar fuel tank side holding 15 gallons flaps electrically operated Like fuselage wing built molds might somewhat lighter landing gear single-leaf aluminum-spring type snug-fitting fi berglass wheel pants engine fuelinjected air-cooled Lycoming 10-360 Smith rates 215 hp thanks careful sembly tuning turns two-bladed constant-speed propeller After 20 months construction last three months 16-hoursa-day-seven-days-a-week variety AJ-2 rolled out flown July 15 1981 Plans methodical flight test program went out window L-B-F 2/2 weeks off time Smith left Fond du Lac put about 15 hours shiny new airplane satisfied would meet original design specifica tions though lot little things put off calmer times Smith AJ-2 got Wis consin created sensation airplane designed built special reason win Oshkosh 500 No major compromises made would also useful pylon racing touring true efficiency racer Sitting ramp Fond du Lac Skyport looked like winner its pointy aluminum spin ner its panted tail wheel Rumors swarmed like lake flies nearby Lake Winnebago After listening few wild estimates AJ-2s top speed could help feel pity its opponents carefully prepared steeds suddenly looked like plow horses competitions won ramp hangar won sky would up Smith show air plane fast stingy gas could fly full 500 miles stop ping Regardless well-designed built AJ-2 clogged fuel line loose connection could force out just easily could interrupt flight some rickety old biplane 170 Model Aviation