THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard
Edition: Model Aviation - 1992/06
Page Numbers: 56, 57, 143, 144, 146, 148, 150, 152
THE JOUSTER Harley Michaelis Most Sailpianers know Harley designer Aces Easy Eagle two-meter trainer also series contest-winning Thermal ships published magazine construction articles recent design Jouster will appear Model Aviation fall Harleys latest news Enclosed new picture 122-in Jouster fellows might like see date Ive scratch-built 11 have three hand years competition other eight still airworthy hands friends also enjoy competition Last year friend Ross Paxton Cheney Washington flew F-4s military quickly moved Competitor Expert class NWSS ship flew season championship 1990 also received Most Improved Flier award NWSS won Thermal Wizard award times other Right Bob Sowder LSF Level V president Memphis Area SS beautiful Falcon 800 Above Two Bernard Henwood designs using same Stiletto fuselage Stiletto fore ground 145-in-span Open class Thermal Soarer Cracker rear 78-inspan aerobatic Slope ship 56 Model Aviation Soaring Byron Blakeslee 3134 N Winnebago Dr Sedalia Co 80135 1-larley MIchaeliss 1e-incn-span Jouster can e scratcfl-DuIIt Tor about 1UO plus cost foam wing cores adhesives Harley says its winner Close-up /16 steel wing joiner used Bernard Henwoods Cracker Antirotation peg also prevents joiner moving off center model assembled Just thought sate stop building soaring season. RC Soaring Rofeience Catalog cs Send $700 check mo first class mailing NSP 16 Kirby Lane Williston Vermont 05495 Northeast Sailplane Products carries comprehensive line RC Soaring kits accessories market today NSP catalog compilation 01 information RC soaring kits related products well how-to intormatimn articles some 01 prominant ligures RC Soaring industry interested RC Soaring NSP catalog reterence must havel reader-written publication about R/C soaring dedicated sharing technical educational information theory practical application $19 Bulk/Third Class $26 First Class Outside USA Please write R/C Soaring Digest PO Box 2108 Wylie TX 75098-2108 flier Expert-class flier using Jouster 90 since Im best pilot around credit has given airframe Jouster much-refined Keetah June 89 RCM plans #1045 $1150 will can still offer $12 package go make Jouster includes fiberglass canopy spring steel blades used support lock tip sections highly detailed construction text illustrative detail sheets materials list sources materials foam cores Jouster designed scratchbuilding Only around $100 materials used counting adhesives foam cores wing find takes about same time build hear takes kits costing $300-plus wanting information first have four-page Jouster information set price SASE business-size plus two loose stamps includes information setting up simple four-channel programmable radios Im 26 S Roosevelt Walla Walla WA 99362 telephone 509 529-2562 can believe Harley says provides detail sheets means detailed Hes modeling long time thorough innovative glider designers know Stiletto Bernard Henwood Followers Soaring scene Britain know Bernie top fliers BARCS British Association RC Soarersthe counterpart NSS League competition recently named Soaring column coeditor Alan Cooper Radio Modeler magazine following long run George Stringwell seems successful British competitors prefer fly own designs Bernie being no exception designed developed Stiletto series gliders accommodate variable Soaring conditions Britain Stilettos range wingspan 100 145 inches characterized very clean slim fiberglass fuselage newest design Cracker full-house aerobatic Slope ship employing standard Stiletto fuselage Bernie helped pioneer use aluminum tubes spars fully sheeted balsa built-up wings As see photo three tubes extend about third distance semispan two tubes run two-thirds distance central tube runs way tip time-consuming way build wing result strong light Launching hand towing done BARCS competition can put heck load wings kind wind wings have strong Anyway news want pass along Jerry Slates will soon producing Stiletto fuselages sale country Jerrys company Viking Models USA known its high-quality extensive line fiberglass Sailplane fuselages Kevlar-reinforced Stiletto fuselage will sell about $80 card Jerry see next section will get Viking Models catalog full information Jerry Judy Slates have moved As first part March Jerry Judy have relocated operations both R/C Soaring Digest Viking Models USA California Texas new address PO Box 2108 Wylie TX 75098-2108 Sorry dont have new phone number time Mid-South Soaring Championships Bob Sowder president Memphis Area SS invites Sailplaners Memphis two-day Mid-South champs June 27-28 contest jointly hosted MASS North Alabama Silent Flyers Classes will Novice Sportsman Expert restriction glider size information call Mike Kelly Memphis 901 756-9410 Ron Swinehart Huntsville 205 883-7831 Tailless Tale Dr Ferdinando Gale new book devoted entirely flying wings has 257 spiral-bound 812 x 11-in pages published US flying wing specialists Bill Bunny Kuhlman under B2 Streamlines banner admit being very knowledgeable about flying wings paged through Tailless Tale thought monumental effort. covers everything. Wing fans will love Bill Bunny wrote following letter describing book Dr Ing Gal6 retired aerodynamics engineer resides Italy still active consultant major aircraft firms first love RC Sailpianes has previously authored book entitled Aerodynamic Design RC Sailplanes work dual-language publication very well Continued page 143 Inner panel Bernard Henwoods 145-inch-span Stiletto wing ready top skinning Note aluminum triple-tube spar system lightness strength June1992 57 Dont scrap favorite AM KRAFT Heathkit Hobbyshack Royal Tower Hobbies World Engines other TRANSMITTERS SERVOS Upgrade latest AM technology proven design mini-size dual conversion ultra narrow band reliability R/C REPAIRS KMI largest complete independent R/C repair center USA repair brands Send SAE complete price repair product information RCD-KMI 6 Meter EXCLUSIVE KM1 Kraft Midwest Inc 115 E Main Northville MI 48167 313/348-0085 313/348-4175 2-wheel gear 1 ycles 1 7995 includes amplifier Ranger three-view ordered comes specifications brief history airplane available rolled mailing tube modest additional cost Id think about sending two bucks Ranger tidy little catalog its bound get motivated again Coming up column over next few months will photos news RCHTAs LA Model Hobby Show Weak Signals Toledo Expo Top Gun Scale Invitational Tournament 92 AMA National Model Airplane Championships Chicopee Massachusetts hope see Fine events meantime til next month build straight fly safely Ill talk again oaring/Blakeslee Continued page 57 received modeling community nearly 1000 copies sold US Dr Gale has accumulating information aerodynamics design construction tailless model aircraft years publication Tailless Tale marks fruition over year writing editing drawing Tailless Tale directed modelers whether interested RC Free Right Control Line flying serves both general guide modelers intrigued history potential tailless aircraft source technical information designing own models Tailless Tale may purchased direefly publisher B2 Streamlines PO Box 976 OlalIa WA 98359-0976 Cost $33 postage handling included until June 30 1992 orders postmarked July 1 later cost will $38 prices also apply orders sent Canada Mexico Orders shipped elsewhere will sent surface mail unless additional $10 included air mail postage Washington residents add 75% sales tax Veneer Wing SkinsPart Two Asher Carmichael Last months column featured Part Ashers article use furniture-type wood veneers wing skins second final installment want thank Asher very much sharing June 1992 143 1991 KMI MINI ULTRA AM RECEIVER $ 9995 8 Ch 50 53 72 75 Mhz KMI RETRACTS WILHAMS ACCESSORIES 4 PILOTS STANDARD TSMAN 0 RACING TARY WHEELS AGE TH CONTOUR BALLOON E 4 ENGINES PRATT & WHITNEY HT HONE PARTS TI & WHITNEY HONE WRIGHT E /ICKERS DAU BELIUM SEND LSASE FOR FREE ILLUSTRATED ORDER FORM DEPT MA ii PAWNEE ST SAN MARCOS CALIFORNIA 92069 Imported exotic woods typically cut Europe metric tolerances tend slighfly thinner domestic veneers wider range species suit purposes Obechi seems standard American kit manufacturers 70000 fl1Wf P l. 100 PAGE CATALOG SCALE OOCUMENYAEIOU 3204 MadisA AK. OresboA NE 27403 3292925239 Obechi Large Sheets Please call 404 642-0645 send SASE 417 Creekpark Ct Roswell GA 30076 probably lightest commercially imported veneer avallable widths up 20 inches open grained however requires sealing effective surface treatment eliminate open pores Some builders have reported success leaving grain open simply applying lacquer directly veneer protect its opinion leaves wing starved horse look definitely turbulates wing randomly may may affect flying characteristics really cant say havent flown wing finished way probably couldnt tell difference anyway Im no Joe Wurts Brian Agnew Anigre 34-36 lb/ft3 another import Slightly heavier obechi its advantage close grained polishes beautifully lacquer also available wide widths some spectacular cross-fire patterns fancy grains can little harder work effect dramatic work veneer supplier caters small-quantity orders can sometimes specify grain patterns widths require Straight ZENOAH & QUADRA ENGINES\ ERCOUPE TOMAHAWK & J-3 KITTEN KITS CECONITE ER PROPS WHEELS CARBON FIBER ARROW SHAFTS SIG CB B & B PRODUCTS DU-BRO FUEL TANKS QUARTER SCALE SPECIALISTS C.AIflt1 nfl Fflfl C2ATAI ter-sliced grain curl rays will yield nice ribbon-stripe pattern easy work remalns relatively flat storage Cross-fire patterns will have tendency bubble around curls grain similar plastic bubble pack may require extra care pressure skinning process application veneers similar balsa skins builders using epoxy adhesive rather transfer tape 3M 77 spray few comments order applying epoxy raw balsa skins sufficient scrape epoxy off surface Enough epoxy soaks balsa form adequate bond foam core dope-sealed veneer surface however possible remove too much epoxy results dry bond Its best use serrated squeegee made 1/64 ply edge squeegee should filed triangular file Is-in intervals depth 1/64 1/32 will leave light lines epoxy surface close-grained veneer surfaces have sealed also helps thicken epoxy microballoons andlor Cabosil consistency sour cream wont absolutely cure migration problem especially bag wings will help Use epoxy choice E-Z Lam Continued page 146 GXAFTED CANOPIES QtAUTY oRr SERVICE 3950-A Valley Blvd WALNUT CA9 1789 714 5941349 594-1471 CALL OR WRITE FOR FREE BROCHURE 144 Model Aviation information us know learned lothope too GEnIE PlANE & AEEEMAATAEAEN ACREAGE Satisfaction Guaranteed SH-710 Pkg 24 5 EA~ HINE4L THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges o place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 7de e4t Sqe4 /oa 6a MFG CO INC.401-7 So Fronf St.Monfezuma IA 50171 623-5154 THREADS Use sleeves material CA will bond Six sizes $2 #4 #6 #9 #101/4 x 20 Perfect hatches cowls canopies engines servos landing gears wings anything mounts machine screw metal screw thread Uses depend imagination Color sleeve denotes size Can used thread lockers RO Soaring/Blakeslee Continued page 144 Safe-T-Poxy II West Systems work well Foam core selection science itself 1 prefer 15 lbIft3 Dow gray board white expanded-bead polystyrene fine blue foam PL3U I1VV Ohio 11376 Ridgeway Road Kensington OH 44427 have used several techniques improve adhesion foam scrim-coat thinned light spaclding such DAP Fast-n-Final squeegeed sanded off helps does scored foam surface Score surface using sharp X-Acto knife making cuts depth 1/16 1/8 spaced /8 1/2 apart spanwise Also cut across core chordwise diagonal diamond pattern surface has appearance waffle scores dont have perfect can use straightedge prefer can either vacuum-hag press skins Pressing seems hide defects core better dont have screw press its hard come up enough weight place top cover board rests top sandwich could place whole sandwichskins cores saddles vacuum bag approximate press havent tried place skins core bag position lower saddles between bag flat work surface upper saddles top bag just enough weight keep things straight Pull vacuum make sure everything straight allow sandwich cure typically pull about four six inches mercury one-pound white foam 10 inches 15-lb gray board 15 inches blue foam reinforcements seem required trailing edge along spar building something requires strength use layer 15- 20-oz fiberglass about 10 15 wide trailing edge between skins core tape skins together like book trailing edge simply run 3-in strip glass down seam line extends equally both sides tape hinge adds trailing edge stiffness required almost airfoil hint taping skins together place skins inside-face-down bench tape down tips root ends skin leaving correct space between two trailing edges correct space two thicknesses veneer Make gauge two pieces scrap veneer Once skins taped down its simple matter run continuous length masking tape down seam careful removing tape after skins bonded especially use bagging process will stick tenaciously may pull grain skins careful sticks too much soak Continued page 148 Matcfled Performance system TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 heads4 Cheices Matched Finish System BEST APPEARANCE K&B FIAERGLASS CLOTH K&R K&B SUPER POXY RESIN K&B K&B SUPER POSY PRIMER K&R iIPFR POSY PAINT 146 Model Aviation ALL IHb IN LLLV price $169 package 8 216-223-1950 9OFtT1JRIDAIP6RAF7 PLOTS -Framing - Views D-TECII SYSTEMS 22 Box 19114 Catdog 1400 cane fl 62916 6169852363 LATHESOMILLINU MAMII4~iUIQLIES SEND $100 FOR COMPLETE ~' LOG CONTAINING MACHINERY 62-3538 LS SUPPLIES AND AT2LOG $1 0 Hurricane AFTERM UFFLER Attach factory muffler Drops sound 6 10 DBI 13 soft silicon baffles 41/2x2x71r Fits 25 40 N E PO Box 15182 $2995 plus $295 Pestage Handling Baton Rouge LA 7O85 UPS DAILY UPS DAILY 4338 Austin Blvd Island Park NY 11558 516/431-4127 FAX 516/889-2682 FEATURING LITEWEIGHT EMT CONDUIT TURING & QUICK LOCK SLIP ON FIlTINGS NO TOOLS REQUIRED / BREAKDOWN MODEL FITS IN CARS o-$40 3/4 & 545 1 SolO & lOxlO FLA 8x10 & lOolO PEAKED 435 3/4 & $45 1 10x20 FLAT 564 3/4 & $73 1j lOx2O PEAKED 454 3/4 & $62 1 8s10 $95$130 $135 F] 13/411 18x10$8000$1101 $115 P31P3EP41FCF3F4 KyrK~ 3/46003/46003/4600 3/44003/46003/4 6o3/4 700 1800 18001900 1-81 90011O00 P4L 00 1 900 P4D 3/4600 1400 rr 10 1 1O00 K3UI PAU 3/46SO 3/4600 1800 RC Soaring/Blakeslee Continued page 146 tape mineral spirits naphtha Let stand five minutes should pull off easily bag veneer balsa matter make sure trim skins close final size wing possible 1I6-in overhang around perimeter okay anything may allow veneer bend crack away core area Pressing doesnt suffer problem obvious reasons have found helps add balsa sub-leading edge some cases balsa root rib take pressures bagging dee 4krXkOO Learn fly planes private field Five 6 day course $350 Open year round Send SASE complete info Southwest RC Flying 2818 Carolina NE Albuquerque NM 87110505-832-6394 FOL Ifc 3/4600 1-SW BUNGlE BALL 408 POP UP CANOPIES $34900 lOx 10 SETS UP IN LESS THAN 30 SECONDS NO TOOLS REQUIRED OTHER SIZES BxB 10x15 10x20 manufacture stock several other systems have full line ol accessories vendor mind Call lax mail us place order receive FREE catalog veneer especially using higher density foams remainder wing construction straightforward Add leading edges tips root rib cut oui flying surfaces cap required Make provision servos pushrods needed youre ready finish wing ft quite possible cover veneered wing film havent tried Ive talked somc have used method arent crazy about requires greater care achieve acceptable job grain has tendency show through Also thinness veneer requires lower temperature film avoid foam meltdown limited choice films isnt problem because like natural look wood close-grained woods could paint veneer after sealing grain adds weight much open-grained wood because would have add weight form grain fillers level surface natural finish open-grained KIT CONTAINS FOAM WING CORES ALL PRE-CUT BALSA Wooo Lynx BALSA SHEETING HARDWARE ROLLED FULL-SIZE PLANS Span 50 Root Cord 925 Tip Cord 625 Area 388 Sq Weight 32 oz approx Loading 118 ozisq ft Fuselage 3275 $5295 Plus Tax & Shipping Slope Acrobatic/Combat Gliders CHEETAH MODELSDEALER INQUIRY IN VI TED 14725 Bessemer St B 818 781-4544 Van Nuys CA 91411 SCRATCHBUILD 14 SCALE PLANS SPB sheets pge CESSNA AGWAGON 1235 4 us$3400 CESSNA U206TU206 lO75 5 us$3700 CESSNA 152 AEROBAT 993 3 us$3100 PIPER PAWNEE[v32]T108 4 usS3400 TRANSA VIA AIRTRUK 1178 5 usS3700 EDO FLOATS[v32]T58 2 us$2200 EDO AMPHIB FLOATS 61 3 us$2800 Add P&P us5D3O0 Surface usS2S00 Airmail FREE Dooumeutatiou ovith plaus Photographs asailabte PHONE 03 2128192 VISA & MASTERCARD Welcome r SEND f3F3 DO FOR COMPLETE LISOINO OF ALL PLANI tODES PRODUCTS SERAICES FREE WITH ALL ORDERS NEW ZEALAND AERO PRODUCTS 34 WARD PARROR STIRLING POINT ELUFE NEW ZEALAND obechi have settled using 06- O75-oz fiberglass cloth applied thinned epoxy will yield wing thats just light film-covered balsa wing resultant maintenance application problems leaves surface leveled matte finish weave pattern cloth exposednot unlike fabric iron-on cant say whether affects aerodynamics Im sure does airfoils chosen certain applications such Speed Thermal Duration sections seems have no effect considering speed envelope required require slick surface probably better stick close-grained wood finish off lacquer process applying cloth easier applying film Finish sand wing 120- 180-grit paper Vacuum and/or dust off surface tack rag Support wing off worktable scraps foam blocks Lay cloth over wing trim within two inches perimeter Miz up 1/2 3/4 oz 30-minute finish-type epoxy Bob Smith Dave Brown brand Add equal amount 90% isopropyl ethanol alcohol use ethanol because its easier find sold hardware stores use shellac thinner general purpose solvent also seems allow epoxy dry harder faster mixture will consistency Continued page 150 Jp & MODEL BUILDING 7SERVICE PADtO CONIIOf PRODUCTS carry full line Byron Originals Bob Parkerson Tom Cook Bob Violet products COD Orders Accepted 718 983-9735 126 WATCHOGUE ROAO EN SLAM 0314 148 Model Aviation Show ThatSoars Above Rest. RENO HOBBY SHOW 92 Make Plans Now Ballys Resort Hotel Casino day Sunday August 22-23 992 Planes Trains Cars Boats o Demonstrationso Swap Shop Admission Adults $4 Family Pass $12 Children 9 under free799t Sponsored Reno Rado Control Club AMA 0696 boom ann snow nformaton call Val YoJng 702 359-0814 RC Soaring/Blakeslee Continued page 148 water Use 1- 2-in-wide brush apply epoxy over cloth Work fairly quickly try overlap previously brushed areas too much Pull cloth edges required smooth large puckers wrinkles have found best work end other covering full chord width wing much would painting board get tip pull cloth conform curves may help pin clothespins spring clamp-type paper clips around tip leading edge overhang improve drape cloth Clean up brush allow epoxy cure about six hours Trim off overhang using piece 180- 220-grit paper Just light brush paper will cut feather excess cloth Repeat process other side wing well exposed areas leading edge flaps ailerons trailing edge wing components covered scuff sand using 220-grit paper will leave white residue weave cloth easily removed rubbing surfaces rag soaked white shellac could use varnish shellac dries faster lighter Just dip firm cotton rag shellac varnish rub briskly surface Keep rag loaded shellac use fairly long strokes keep moving components ready final assembly dry lacquer finish close-grained wood about light finish will find requires compressor spray equipment go evenly definitely premium finish sure use lacquer sanding sealer first coats Apply * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse $275 Cat No202 Air CleanerFine $275 Replacement Inserts Cat No 104 Pk/2 Inserts Coarse $239 Cat No 204 PkI2 Inserts Fine $239 FITS MOST ENGINES 25 UP SEE YOUR LOCAL HOBBYDEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc P0 Box 3786 Center M cli gan 48015 Add $2 50 far sh pp ng M ch gan rex dents add 4% 59 es tax outdoors low-humidity sunny day use light coats first prevent solvents leaching core Two light coats should Level sealer using 180- 220-grit paper dust off residue Top surface off choice rubbed effect gloss lacquer two good coats should can go over surface 0000 steel wool wet sand 600-grit paper furniture-grade finish Though havent tried gelled polyurethane regular varnish rubbed wood cloth has used finish cant say much about technique might just ticket close-grained woods dont have spray equipment Landon Grindstaff Gene Watson started off using system have since switched brushing scalers paste wood fillers use obechi cant say veneer skins final word have cosmetic disadvantage finished naturally will take great deal abuse balsa wing will ding can forget about effecting invisible repair course can patch cover strips designs cut adhesive trim sheets necessary paint skins matching surrounding area much easier summary am extremely pleased veneer skins continue experiment Continued page 152 150 Model Aviation ULTIMATE BUSH PLANE NEW VHS VIDEO CATALOG $695 &h Texas eaden s please add sales tas US Air Corei * L4aAcft,g 4576 Ca Chennau l-angar 7 Dallas TX 75248 800 336 0602 odes 214 250 1914 info classic 40 tJltimate Bush Plane Explorer Floats DSBOLT MODEL PLANS Radia Central Central Line SASE Per List Frau Ptaazkievic 23 Marion Drive Tamavanda NY 1415a-4321 _@ NOR-RAY PRODUCTS INC 5008 SAND BEACH RD / WICHITA FALLS TX 76310 817-692-4475 HANDS OFF CUT TWO WHY PAY MORE WHEN YOU CAN GET THE BEST FOR LESS? Designed Modeler ModelersCuts Both Sides Same Time Easily Cuts Straight & Tapered Wings Available 30 40 50 60 Still Only $9680 $3OO S&H RequW3 V Power Supply 40 S& Visa-Mastercard Video Available Send $2 information fine products CUSTOM EXHAUST SYSTEMS Designed Fit Inside Tight Cowls Call Us Special Exhaust Needs CUSTOM VACUUM FORMING CanopiesCowisWheelpants RC Soaring/Blakeslee Continued page 150 moment veneer gives qualities am looking composite wing construction Veneer skins light strong have above-average surface hardness require minimum maintenance during lifetime Dont afraid trying can build foam-and-balsa wing veneer next best step upgrading building onding advertisers mention read about ModelAviation No Job Too Big Too Small RC Electronics/Kopski Continued page 59 make five-minute flight five rolO seconds motor run Yes read right Brian also tells typical F3E plane has span 60 70 inches overall weight 82 90 oz typical motor would Astro FAI 60 twenty-seven 900 mAh Sanyo 5CR cells models epoxy resin fiberglass foam Kevlar carbon fiber construction controls consist spoilerons elevator onloff motor Motor current can reach 100 amps Thats hundred amps folks typical everyday sport Electric As reminder team yours relies heavily en external support can help buying team T-shirt patch pin $12 $5 $3 respectively Write US Electric Flight Team 20 Lemon Court Hillsborough CA 94010-62 14 tell em Bob sent ya March coJumn has brought some reader reaction discussion It, column used descriptor mean several economy Electric kits market can complete motor relatively low cost also described Electrics generally fly some use try out Electric some use flight training some fly casual fun finally some modelers upgrade performance planes substituting higher performance motors Well column brought two rather diverse reader inputs within days other first unpleasant reader letter Ive received nine plus years Ive writing modeler very down Electric general particular felt other Electric columnists have misleading readers about well Electrics perform So harsh writing fact cant print what sent Continued page 154 B&P Associates Gives Total Flight Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field 152 Model Aviation NEW FAI TAN RUBBER 114 316 1/8 thick 1 lb box $1475 linciudes 4 nz Slick Lsbei $1375 no lube costs *1 75i 10 lb box- $11000 IUPS Deliveredi Postpaid US via UPS Cai rae add 6% sales taa Made USA Slow cure consistent quaiisy Ask PAl-TAN 89190 catalog lists 100 FF kitsl CROCKET HOOKS NOWMADEBYFAI SEND 41 50FAI Model Supply FOR00 Box 339344 CECARSON CATALOGTORRANCE CO9O50CARSON C 90745 TEL 213 8308939 SAMS MODELS England NEW FREE FLIGHT KITS i-7 ER SEA FURY 216 $i995 also available WESTLAND WIDGEON 24 14gs Rubber/Electric/Co2 ADD $700 Airmaji postage Europes leading Free Flight & vintage spe cialist SAMS 1700 item catalog FREE Send $2 bills postage SAMS Chapel Sandon Herts SG9 OQJ England Note US checks & stamps valid UK Send $ bills use Visa/Mastercard