NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A
Edition: Model Aviation - 1985/04
Page Numbers: 94, 95, 96, 97, 98, 178, 179, 180
NO OCR TEXT DEVELOPING NEW ACTS model show team purposes requires eye interesting unexpected items fly different view things has led designers create models such fly ing lawn mower flying hamburger photo full-scale powered parachute presented Mechanix Illust rated saw opportunity something unusual fly shows aerodynamically feasible Its certain ly difficult getting hamburg er fly background sewing found could produce fabric wings lot challenge certainly something could recom mend everyone try after found way use store-bought parafoil kites project became feasible builders expertise wood metal As novice kites endured trial-and-error flights September 1980 Model Aviation story Para Craft closed story saying much experimentation left time article readers hands sure chute over size too much strain engine After cutting off 30% chute model flew graceful 10mph much easier control larg er chute caused model just hover Responses article showed individuals corpora tions involved both RPV full-scale development powered parachutes As learned about parafoils found original parafoil kite designed Domina Jalbert 1967 design later adapted ram-air para chutes sky divers Since powered full-scale designs used parachute made sense models use smaller kites problem readymade kites design ratio chord greater span Also kite three rows ventrals sub-fins difficult rig two sup port points solution came simple attach two chutes sideby-side created wing-like ratio span chord also provided two chute attachment points ready hookup ParaCraft After describing idea owner Kite Site provided two kites try out 10 minutes sim ple sewing join chutes new wing ready check out ParaCraft 3 flew right off drawing board model suitable sharing others Another development fabric-wing models has come attention British-sold Windbag RC model based kite called Flexifoil appears similar Jalbert kite use except two lines Left authors wife Dawn demonstrates perfect launch procedure Luther behind chute commands radio waits fabric wings rise older version wing proved too large 80 engine pull efficiency Right few seconds after release assistant fabric wing moves ahead begins lift models fuselage tail surfaces Above smaller kite wings easier launch pilot alone holding kite transmitter Increasing throttle challenge helper holding kite top outer corners throttle up easiest way sure helper knows let go fuselage could takeoff loop over wing him Right store-bought kite wings small enough allow slow forward speed instead just hovering test models often did light breeze ground speed drops can walk alongside model set up landing Its different kind flying kite will follow have developed several unusual designs ParaCraft exotic designs fun watch However am present ing simplified design ParaCraft 3 tail-dragger version ensure suc cess capable builder may choose try ParaCraft 4 no need burden novice builder unusual building procedures would alter design prefer try new ideas let give following guidelines 1 Keep chute support point above behind models center gravity CGbalanced fuel chute Lowering support point moving forward CG will cause model oscillate violently under power Should find yourself flying spastic Left crisp nylon fabric allows positioning two kites tops Inflated show zigzag stitch holds two together leading edge six inches top also stitched Right appears kite sewing machine actually two stacked together zigzag stitch already made kite returned machine show its position during stitching Keep ventrals trianguiar fins out stitch watch roil-under rib fabric lust want stitch narrow hem kite keel store-bought kites minor amount sewing needs done kite series wingsocks spread apart fiberglass rod Jalbert design uses lines hold shape Both designs use air currents infla tion Windbag claims performance very similar ParaCraft kit sold Newtons Laboratories 5600 cause wing held above fuselage pole cant help wonder well can taxi will tip over easily wish experience fullscale parafoil flight can purchase ParaPlane ParaPlane Corp New Jersey full-scale aircraft classed ultralight using parachute wing information call 609 663-2234 company well known its parachutes now offering ParaPlane around $4000 ParaPlane uses trailing edge deflec tion steering just like parachutist would method steering does work well small kites model energy intended defect trailing edge kite misaligus fuselage instead kite resists being changed Thats used swamp buggy method just push fuselage around propwash rudder spider simply reduce power try partial-power landing move support points away CG 2 Avoid dead-stick low-idle land ings order obtain flying speeds 10 mph must use smaller chute would set model down gently chute large enough make soft poweroff landings would hover calm air fly backwards type breeze desired balance between chute size power available pull chute weight model wind speed range can fly Big chutes hate wind require power pull Smaller chutes have greater air speed need less power can handle wider range wind However very small chutes must keep up landing speed just would ordinary winged model limit overall weight 3 ParaCraft has overall wind speed limitation regardless chute size Just must consider limited capability hot-air balloon ultralight handle wind must also consider capabilities ParaCraft first test flight should performed calm air can accurately judge performance 96 Model Aviation author doesnt normally stand runway flying photos other club members agreed stay down Bill Hershberger took pictures ParsCrafts lowflyIng capability GettIng speclsi ciesrance easy because unusual show offered rear view PareCraft hope see shortly after takeoff inflated wing rises contradiction notion parachute wings can come down adjustments 4 Avoid tricycle landing gear variation headwind takeoff will tip model over tail-dragger design mains well forward chute supports will automatically pull model alignment headwinds tipping model move landing gear rearward 5 ParaCraft tends fly slightly nosehigh have mounted tank align level carb angle mount engine upright places carb higher contributes leaning-out overheating engine order hover must raise nose model leans-out engine best peak engine angle will con tribute overheating flying 40 cannot take off peaking engine change powerful engine ParaCraft does have fast forward speed help cooling straining engine nose-up posi tion can quickly burn up 6 You should also note flying nose model steep downangle few seconds will cause engine run dry no flying inertia hold fuel rear tank slow speed As mentioned earlier avoid dead-stick landings model will get big bang out often will cost prop knock off muffler seldom causes real damage its graceful way land 7 You may see photo both wings parafoil get idea combine ParaCraft Please dont photos chute-assisted landings wings lot trouble take off flying Since model does have enough airspeed use wings wings catch crosswinds spoil flying Paul Garber left KnOwn 85 ins miinsonian institutions man-aoout-icites inspects joining airplane modeling familiar kite has flown before ram-air kite designed patented Pauis friends Domina Jaibert Gerber started Smithsonians Annuai Kite Festival Washington Monument grounds 18 years ago 8 considerate other modelers flying ParaCraft Because its heli copter-like performance ParaCraft cre ates sitting target general nuisance pilots conventional fixed-wing air craft trying take off land Please dont hover over runway just because have capability Flying Novices experts alike should test new models calm air Expert pilots can soon increase wind range up 10 mph non-turbulent air wind range 10 15 mph consider using smaller chute made two J-5 kites setup takeoff have helper hold chute top front outer cor turn procedure simpie pic ture shows Propwash rudder turns fuselage twists twin bridles kite wings obliged foilow direc tion fussiage Once airborne kite remains infiated flying downwind donttryto land crosawind downwind Thewind takes over aethe modei slows down can biow chute propnot happy thing chute chute should have front ports open look exactly does flight Aim directly wind off amount chute will track wind release Simply agree go along wind direction roll-out ito 6 ft adjust new heading after lift-off Instruct helper let go cue Power-up about quarter-throttle cue release model should pull away chute inflated Shut down spot trouble such line snagged stab looks well power up full throttle watch model take off Usually no commands required apply too much power before helper lets go will find fuselage suspended midair end shroud lines danger taken care model could swing over assistants head cause injury assistant made aware potential problem can let go model rises ParaCraft will fly position Otherwise pilot must apply down elevator ease back throttle settle model tall extends beyond stab rudder protection aborted takeoff Rehearse procedures again before another takeoff helper must let go beginning power-up Later can assist own takeoffs hand launch Once model airborne may move controls combination wish give sharp up commands could fly fuselage back chute will result model being wrapped ready burial turns aggressively move stick direction wish go Add little up increase turn would conventional models landings set up approach up wind reduce power about half throttle ParaCraft settles faster vertically conventional models dont cut power idle about 5-ft altitude apply up elevator raise nose three-point landing Moderately increase power model descending too quick ly reduce power hovers Expect model land some forward speed unless wind equals flying speed landings will helicopter-like get near-vertical hovering position cut power suddenly Instead apply down elevator send fuselage forward sudden drop power position will cause pendulum effect youre close ground pendulum swings once get idea dont drop model its tail Beginners take note sur prised fuselage pulling up too much power often cut power Remem ber apply down elevator fly model forward Reduce power slowly Use wood prop kind less likely cut up chute case bouncier landings causes chute set tle over engine ParaCraft extremely Continued page 178 98 Model Aviation veiy first 0 authors ParaCrafts could classed fsn-powered go-kart pulling Its own sun shade oversized chute too much 40 after reducing chute area 35% model could flown calm air Attemptsto steer deflecting chutes trailing edge useless chute stood its ground fuselage tilted said done rudder proved steering control needed Anyone would like hop aboard full scaleversion ehouldcheckthetextforlnfor matlon ParsPlane latest craze ultralights thatcan carried flying field trunk automobile equal second PararaTt breadboard aesignea mat seemea too ugiy ny nowever half-inch plywood fuselage scrap tail surfaces exposed radio gear tank functional positioning equipment surviving crashes Once best dImen sions discovered returned scrap heap originated SAILPLANES WORLD iSOlA Coffee Rd Modesto CA 95355 Sailplanes International Krause MultiPlex Wanitschek Wik & Roke Sport-Scale-F3B European Hardware Accessories Send $500 Cat & Price List 209 577-0506 complete photo-study display feasible photographs article representative varied wonderful collection seen museum come visit Aero Space Museum open day except holidays take leisurely journey through aviation history things see Some displays have audio-visual podiums explain screen voice history subject Such memories invoke visit will surely increase knowledge aviation ParaCraft/H ux Continued page 98 forgiving errors learning basics gives novice chance good first flight flying strong wind find model drifting backwards beyond control reduce power let model parachute down try fly back against strong wind higher kite will rise Ready build Lets buy kite wings first ParaCraft uses two Jalbert J-75 ram-air-kites available kite stores around country friend member AKA American Kite Association has copy Kite Lines can assist locating nearby kite stores local shops available may order phone source Kite Site Washington DC phone number 202 965-4230 may order using charge card request order form mail purchases cost kites 1984 approxi mately $300 J-75 $300 shipping thats total $6900 two will need wish experiment smaller chute 40-size model higher wind range order J-5 also approximate ly $1600 will add $3200 order must choose between two chutes order J-75 try smaller chute later repair work suggest buy foot two rip-stop nylon tape adhesive backing Get several colors such yellow white excel lent repair material chute After applying tape can stitch place match colors use permanent marker pens Fly new kites 50- 100-lb-test nylon line mild breeze before using ParaCraft will help remove creases relax fabric kites arrive appear permanent ly pressed folded position should also acquaint yourself parafoils performance Notice have strong pulland remember try fly two ParaCraft windy day Use gloves flying size kite prevent line burns cuts attach two kites other place kites side-by-side rib section rib section shown drawings Line up bottom keel hems fold back triangular ventrals lines remainder chute fabric Set sew ing machine its longest stitch wide zigzag Assemble two hems starting leading edge left zig should enter fabric right zag should fall just outside hem Triple-knot thread both ends hem Next set machine straight stitch sew leading edge two chutes together Center stitch between factory stitch edge fabric Again triple-knot both ends thread Lastly attach approximately six inches top kites together necessary join kites way down top edge Most people will prefer hand-stitch quite difficult machine Use large stitches over manufacturers stitches triple-tie ends Check seams hems leading edge intersections loose threads open stitches Once under air pressure seams can come apart Snug knots bridle lines apply small piece folded tape prevent J BEAUTIFUL OBSESSION -This just another Laser 7 large 1/38 scale model builds quickly flies perfectly 95 balsa ply fiberglass cowl wheelpants lots hardware decals 12 cu larger engines Webra Bully 35 recommended 87 3/8 wing span 1254 sq wing area 16 TOC LASER 200 19 lbs WE GIVE YOU GREAT VALUE Eb33133ORDER TOLL FREE 800-7820022 CEK4U8 SERVICE & INFORMATION 7027320022 3132 South Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase M 52 $2500 ea includes shipping UPS COD add $200 $600 plans CA add 6% Dealer Inquiries Invited LINDSEY MICRO PRODUCTS 160-A No airview Ave Suite 104 Goleta CA 93117 805 683 2042 After 5 pm Pacific 178 Model Aviation Span65Eng.45-60 Area754 sq in4 channel Send $075 latest price list literature Quality RIC Products Since 1960 VK MODEL AIRCRAFT CO 6886 Transit Rd. Depew NV 14043 Phone No 716 684-5555 LMP 1000 Both require Two Channel Radio Mini Servos 250 MAN BATT wood construction Include hardware needed ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX A-J Fun Pak151171 AMA Membership100 Academy Aviation Research Development18 Ace Radio Control55 Aircraft Photo Packs176 Airtronics2 Astro Flight150 B&B Custom Built Models156 Balsa USA88 Bergeron Enterprises157 Dave Brown Products152 Byron Originals156 173 Carolina-Taffinder152 Johnnie Casburn MfgS Chevron10 Circus Hobbies155 178 Cleveland Model & Supply Co176 Eric Clutton176 Colonial National Bank154 Consumers Guide RC Aircraft Products172 Cove rite15 Curtis Model Aircraft153 DA Enterprises161 D&D Engineering162 DG Products173 DGA Designs130 Davey Systems Corp51 Jim Denaro Model Products172 Larry Dodge Aero Inc176 Dougs Hobby Shop174-175 Du-Bro Products Inc7 EMCOThe Electric Model Co160 FAI Model Supply162 FHS Supply Inc4 Fiberglass Master8 Flight Control Hobbies57 Flyline Models165 Fourmost Products142 FoxMfg170 Fox Models28 Woody Frantz156 Fun Line Models153 Futaba Corp America27 Gas Model Products150 Gator RC Products155 Carl Goldberg Models13 163 Golden Gate Hobbies47 Gorham Model Products12 Great Planes Model Mfg Co83 Historic Aviation39 Hobby Barn132-133 Hobby Capitol Distributors148 Hobby Horn55 Hobby Lobby International137 Holleys Silent Flight176 Howard B Huebl153 Ikon Northwest Co152 Indy RC Sales Inc146-1 47 Jeffla Corp143 Jet Age Model Aircraft Co145 Jomar164 K&BMfgCo157 K&S Engineering28 Kin Craft152 Knights Air165 Kraft Systems Inc29 Kustom Kraftsmanship170 L&L Model Products151 Leisure Electronics168 Lindsey Micro Products178 Lone Star Models49 MACS Products165 MARC Show53 Master Kit156 McDaniel RC Service144 Jim Messers Qual Model Prod171 Micro Mark138-1 39 Micro Model Engineering157 Model Airplane News6 Mod-Ler168 Model Magic Products144 Model Products Corp148 Model Rectifier CorpCovers 2 & 3 Sid Morgan Plans171 Mutchlers Hobbies158-1 59 National Soaring Society148 Nor-Ray Products Inc64 Northeast Screen Graphics140 Ocean State Aeromodel Eng150 PKProducts134 Pacer Technology9177 Peck-Polymers150 Penn Valley Hobby Center151 Peripheral Systems Inc149 Pica Products17 Polks Model Craft Hobby136-1 37 RC Kits Mfg26 RJL Industries64 Radio South141 Repla-Tech International176 Robbe Modelisport93 Jim Roberts Flying Model Aircraft134 Norm Rosenstock164 Roush Mfg144165 S&W Hobby Supply162 SR Batteries12 Sailplanes World178 Satellite City1 Scratch-A-Plane65 Shamrock Competition Imports131 Sheldons Hobby Shop26 166-167 SigMfgCo1118 Simplex Miniature Engines162 Specialty Hardware Co160 St Croix Park Falls Ltd10 Standale Aircraft130161 T&D Fiberglass Specialties134 TGMfg161 Tatone Products Co8 Tide Distributors171 Tidewater Eng & Mach Co64 Toledo RC Exposition135 Top Flite Models Inc157 Tower Hobbies169 US Eagle153 VK Model Aircraft178 Videotech176 WE Technical Services16 Williams Brothers151 Wilshire Model Center4 Windsor Propeller Co8 World EnginesCover 4 Zenith Aviation Publications19 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX loosening knot Fly kites mild breeze see ventrals under equal pressure Shorten bridle line A-in time its ventral flapping breeze Mild vibration ventral normal usually no adjustments required Place key clips through bridle loop Key clips can found variety stores belt straps key rings provides quick hookup help solving tan gled line problems suggest different colored line tied between two bridle clips Wrap tie colored line around bridle loop just above key clip Allow extra two inches line distance between chute supports wrap tie other bridle loop find bridle tangled mess simply follow colored line through mess proper route untangle During test flights ParaCraft may find chute flies misaligned twisted slightly side direction flight Check alignment model flying upwind Correct align ment lengthening rear ventral line side leads shortening rear ventral lines side follows about time usually takes less choice between two adjustments depends does create looseness other ventrals Note alignment problem closed-up cell has very little effect flight should no cause alarm Once adjustments made can secure knots pliable glue such R/C-56 chute becomes soiled oily should washed protect fabric damage Use warm water mild liquid soap Woolite bathtub use washing machine Keep lines tangling tying chute clips together run line up towel rack Agitate chute hands lift dunk chute holding tralling edge wet chute very heavy must handled carefully prevent seam damage Never lift wet chute shroud lines After final rinse lift chute trailing edge let water drain off hang line just damp may fly chute final drying shaping pack damp chute sealed bag includes chute flown damp humid air expect fuel stains disappear will always oily appearance stains after washing fabric should sticky heavy Building fuselage overall appear ance fuselage unique building isnt unusual Begin cutting out parts mustrated bending wire pieces Glue stab strips together Complete tail surfaces temporarily hinge elevator rudder Assemble bulkheads F-2 b c Attach x pine longerons triangle stock fuselage sides Attach landing gear firewall clamps wire Install blind nuts engine mount Place fuselage unit upside down over top view drawing Glue bulkheads place working front rear Turn fuselage over Attach top A-in balsa plank shape sand apply glue hatch area glue front rear areas Cut slot rudder top plank Glue stab April1985 179 FULL SIZE PLANS No 470 No 471 No 472 Stroker$ 650 RC Mid-wing sportster uses 40/45 four-stroke engine spans 50% Megas Aetos$ 575 CL Profile Stunt trainer spans 54 uses 35/40 engine Paracraft$ 550 RC Craft has flexible parafoil wing uses 3 RC channels 60 engine Ne 193BUstle CL Stunt model Mconnald winner 1 97619801982 FAI World Champs$ 315 Ne 239Use Birds AC Ken Willards formation plane 4-channel 1 0-power$ 375 Ne 282Crashsafar CL Crashproof trainer two sizes1 530 35-40-power $125 No 209See Bee Br Bpoetater AC i/-scaln Haffke 91 pnwer Prototype span 30 ft Two-and-a-half nbeets$1175 No302MInI F-iS AC Sarpolos O49doctedfansportflierfnr2-channel Balsa wings tail foss stractore$ 275 No 3101930 P1611 Biplane AC Sport Scale 35-40 4-channel Wingspan 56 scale Two sheels$ 825 No 314Drake AC Ken Willards flying hoot 3-choonel 15-power Fly land remonahle gear$ 375 No 326Taylor CeIc AC 050 Srolls Schoolyard-Scale far 049s 2-3 channel Spans 50 $ 350 Ne 332Zephyr AC Small 2-channel glider hand-launch tow thermal slope soaring$ 200 Ne 343Wasp VI FF Mike Stoys Nato-winning Outdoor HLO$100 No 358Pleas FF Indoor Easy B Aohher-power contest-winner hy W Van Gorder$100 No 385Saimanter AC Willards 40-size flying hoot 4-channel Strap-an gear landylanel Two sheets$1100 Ne 303Calate 82 AC Fly sleek Nato-winning Sailplane AMA Mod Std Unlimited classes$ 750 Ne 388Laser 200 AC Sport Scale replica champinoohip Aerohatic flier Uses 40 power 4-5 channel Two sheets$1075 Ne 398Sm Bee fl-i AC Haffkes latest /4-scale spans 75 weighs 15 lh flies 90 larger Four sheets no doc$2225 Ne 309Zephw 1100 AC AMA Class B Sailplane 3-channel AC gear$ 875 No 403CehFleetptese AC Sport Scale 0491 0-size ongines 4-channel AC J-3 fboots ma classic$ 650 Na 412MesquIte AC Sport Plane twin oses 10 engines 4-channel AC$ 825 No414ClectuIc Spadcy AC electric-powerod fun flier 05 motor 3-channel AC scaled up 1939 ruhher-power favorite$ 850 No 420Beck 600 Fl Competition Class B 1 9-21 power Hao nariahle-incidence tail VIT$ 600 Ne 422Sceeter AC Two-Meter Sailplane has woo Nuts event 19821983 plus other contests$ 550 No 423deed Cealur AC Old-Timer lakes 60-power 3-channel AC Two-piece wing option easy transport Two sheets$1 275 Ne 424Seed Tea FF Emhryo Endurance rebber-power flootplane has opt neal wheels stick-oral -tissue delight$ 200 Ne 426Cklsa Efipper AC Faholoos 74-in-span Sport Scale flying hoot four 10-size engines 4-channel Three sheets no dec$2000 No 427Profiles PP Travelair Mystery Ship Miss Las Asgeles profile ull-halsa ruhher models sport flying 1 7-in-span$ 200 No 429Deer E-Z CL Old-Timor St ant biplane has profile fonelage ones 25 engine$ 400 No430Irooslde AC Zippy little sportoter 10-iS power 3-channel AC$ 400 Ne 431Lockheed F-SB AC Fun-scale twio-1 5-flier 4-channels Two sheets$1 300 Ne 432Pheesls CL Updated Thunderbird-style Slunter 35-40 engines$ 575 Ne 433Watts Up AC Electric-powered gIlder 2-3 channels 035 motor spaoo 52 in$ 450 No 438Tkle N AC Aerohatic hiplane 40 engines 4-channels Great sport flying$ 650 No 437KIegflstiei- CL Profile Carder plane spass 401/s uses 35 engine$ 600 No 438Coabar FF Embryo Endurance rubber-power fun ship has big-model characteristics $ 200 No 439Desperado AC flying wing onique negative dihedral flies 4 channels 1 9-40 power Foam wing$ 450 Ne 440diviSor AC Old-Timer-like new design has huge wing slow easy flights 35 power 3 channels Two sheets$1 725 No 441NB WIt FF Hot small lightweight competition ship 15 power hy designer Harry Murphy$ 475 Ne 442Lazy Deck AC Big canard sport flier /uA-09 power 2 channels Uses foam hoard parts$ 850 Ne 443Tasks Porter CL Scale 25 power Simple lines easy building Two sheets . $ 875 No 444FIrehelt AC posher canard sportipattem uses 40 pusher engine 4-channel Has swopt-forward foam wings$ 650 No 445Nosaslth Cougar CL Scale model popular homebuilt won Nuts Uses 21 engine spans 41 in$ 925 No 448Le Crate AC Electric-powered sport ffier 05 motors 3-channels Two versions parasol cabin$ 550 No 447t5A MIss AmerIca AC Old-Timer IsA Tesaco model 049 glow 2-channels $ 650 Ne 449Settee CL SportiStont plane 40-size 4-st robe engine hoilds fast easy$ 600 No 451LB BIpIsee Sealer AC Andesigo sleek 1937FF biplane 3-4 channels 29-40 power Two sheets-$1175 Ne 452See Bee Z AC Ouarter-scale spans 71 uses 90 power Four sheets -$1600 Ne 483Smesthle Preln CL Profile rendition Bob Palmero super-Slanter early Fifties 35 power$ 550 No 484Sweet P-3D FF Neat stick-and-tissoe Outdoor Aubber P-30-class model ma contest-winner$ 200 No 455Mleter Meligas CL Big Scale model famous air racer spano 56 uses 60 power Two obeets$1 375 No 486NI-Tech 2001 AC Oocted-fan futuristic-looking canard 25-size engines Baiti-op construction Three sheets$1175 No 457Spectre AC Electric-power 05-size motor ones 3 different wings sport soaring aerobatics$ 700 No 488DiesBees CL Profile Carder 15-power events Two sheets$ 575 No469Sky PursuIt FF Robber-power old-timer designed Jon Ott 1932$ 300 No 4804-40 AC Shoulder-wing sport flier 4-cycle 40-size engine 4 chaneets$ 650 No 481Trfoter Barastesmer CL Famous vof lapped St aster fhe late Forties Uses 35 engine$ 650 No 482Peale PC FF Jombo Aubber Scale WW Itallan observation plane$ 400 No 483Pfatyheknlethes Vt AC /nA Pylon racer uses lots life ply built-op structure strength ligtitsess$ 475 No484Bandascer CL /sA sport flier all-sheet-balsa can use Tee Dee 049$ 325 No 488BIas Mast AC Fuo-fly sportuter 40-size engines spans 52 Lightweight strocture$ 700 No488CmpeBtcr CL Stunler 60 power has 850 si wing area$ 575 No 487Aleo Spout FF Aubber Scale design won 83 Nuts designer SmIl Wingspan 26 in$ 250 No 488Sseothnr CL Stunter 29135 power Oesign based hybrid SmoothieiNobler$ 875 No 489Dee Klchot AC Sport Scale rendering Polish horoehuilt pusher Spans 75 ases 40-size 4-cycle engine Four sheets$2075 Circle numbers plans wish order 193239262299302 343358365383386 414420422423424 431432433435437 442443444445446 453454455456457 462463464465466 471 472 310 398 426 438 447 458 467 314 399 427 439 449 459 468 326 403 429 440 451 460 469 332 412 430 441 452 461 470 Pbs price Isciudes postage US dslvnry orders octalde US please add $250 Air Mail $1 25 surface asail Make chock money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr ReStion VA 22090 PloaSe allow 3 weeks fsr delivery Please print carefully Enclosed $ _____________________________________ NAME STREET CITY STATE ZIP rudder Install triangle stock inside fuselage rudder asd stab intersec tions Cut across top plank remove equipment access hatch Trim ends hatch will fit after covering temporarily hinge place Assemble wire chute support Bind epoxy solder wire joints Tape temporary cardboard floor fuse lage bottom Position radio gear tank engine wheels pushrods tail wheel etc CG test Change radio gear positions until CG within 1A suggested location Make mark 1 behind balance point position front chute support wire mark may notch fuselage use landing gear strapsor keep wire outside bottom use landing gear clamps after covering completed Install swivel tail wheel use skid Steering necessary Install pushrods servos Set controls up extra-wide throw use long servo arms small control horns Secure pushrod several points fuselage guides prevenexrng caused moving large control surfaces Close up fuselage bottom An hard balsa sheet use ood floor under wire supports Install rest radio gear fuel tank Support tank against top sheet foam block Complete covering trimming finishing hardware Attach elevator rudder hatch Secure hinges Install engine mounts engine prefer use muffler downwardpointing exhaust cleaner chute Pro tect engine overheating due nose-high flight angle setting tank up higher normal leaningout engine ground peak power Use large enough engine wont have overworked Install large wheels like Trexler balloon-type come handy hard landing engine quits move landing gear position rearward could allow chute tip model over too easily Run nylon line around tip rudder stab prevent chute lines hanging up during setup takeoff Follow instruction given least j once before taking off own ideas variations feasible start tested design add thrill flying Paracraft add lights fly night takes very little light make chute show up use two 6- 9-volt bulbs mounted Velcro just above line clips end chute lines fine wire routed fuselage attached battery pack switch Good luck ParaCraftbut dont surprised youre barred touch-and-go carrier events write information please provide self-addressed stamped envelope 180 Model Aviation as v6 as05 n cu out C coo E5 00 Zas 0t0 Os o C - CO 0 as, Co 5 0 C Coo C V coo jas i 0 0 gas as0 0on 0as C D Os A