Radio Control: Giant Scale

Radio Control GIANT SCALE Bob Beckman SOPWITH TRIPLANE couple months ago told about Woody Clapp Sopwith Triplane thrill sitting cockpit handling controls Woody rued up engine So haullng back ridiculously long stick wickerwork loop top sa voring wind face after too years hot stuffy cabins hard re sist impulse give coal head wild blue yonder Since cockpit obviously wasnt taking pictures However Ken Miller Ida Grove gave some color negatives taken Color prints seldom repro duce well black white pictures magazine always ask black white prints process making B&W prints color negatives thats what did Kens negs resisted impulse take off Tripe couldnt resist impulse show pictures think Sopwith would make out standing Giant Scale subject Ive already put high llst things sometime Wouldnt Nick Zirolls DR-is Sopwith Tripe mock dogfight make great air show act prototype 50cc Quadra engine Production model will have die-cast instead sand-cast cylinder fits standard Quadra engine mount has 50% displacement present 50 Model Aviation errlTic uiant icaIe Sopwitfl riplane Note two-dimensional photo/pilot cockpit looks just like Bob Beckman Hey Bob full-scale replica Triplanesee col umn info Bob told us about Woody Clapps place back October 1982 issue thats planeand Bobwere photographed Bob sits cockpit tries act just like knows what hes doing Hostetler P-6E introduced 1981 Toledo show flies great looks Note wing airfoil scale sectionbut makes model fly well will significant internal differences flew 50cc Quadra Crankshaft/conrad assemblies standard left new model right show some Note double-counterbalance ball bearings vs roller bearings foiged conred vs stamped New Quadra just got back very pleas ant interesting trip Quadra factory Canada Ill telling about trip near future now thought would interested current status new 50cc 3 cu engine Weve waiting some overly-optimistic estimates would available have lot people won dering really exists Well yet production its getting close day first die-cast cylinder out mold delivered engineering depart ment understanding last part needed start production Now dont get excited doesnt mean theyre ready start cranking Out engines Engineering will have assemble test engines made final parts make sure everything works should stage probability high will come together right After wouldnt have gone considerable expense making die werent pretty sure stood So does leave us waiting new Quadra goes well new cylinder casting would guess will start limited production about three months Im writing midSeptember means about first year will take another two three months build up real quantity production Keep mind own estimate official statement Quadra Theyre going start putting out engines until sure engines ready problems show up new cylinder casting bets off thing certain ready Quadra wont shy about letting us know magazines Giant Scale writers will getting word passing Bob Holman Plans Bob Holmans name unknown RC modelers especially interested Scale models some time Bob has making available quality RC Scale model plans overseas sources Most items scaled two inches foot smaller has started enlarging some Giant Scale sizes Bob sent two examples what can provide Both originally Brian Taylor designsthe P-Si FW-1 90 two plans represent two different approaches enlarge ment P5 us drafted enlargement new pen-and-ink drawing made following original increasing measurements some factor results quarter-scale Continued page 130 exhaust mount $ 26500 BOOSTER FUEL MIX 3oz Oil 3oz NITROETHANE gasoline gallon o Put aBEE tank Tigers cant fI 525 p1495 Pr r 2 Servos safer coupled Think Fail Safe cember 1982 51 Wendell Hostetlers Art Chester Jeep showed up Toledo 1982 Prototype small 425%-scale 7/1 6-sizel model spans 84 Onepiece fiberglass cowl extends nose way back leading edge wing info column KAWASAKI 315 TA-SI MX Complete adjustable c~Get install dont take off Ken Willard RCM SERVO GARD SERVO GARO monitors airborne flight battery pack voltage well radio signal received transmitter raceiver malfunction detected part system SERVO GARD reduces throttle automatisally ample time before battery failure safely land modal SPECIFICATIONS Size Unit installed KPS-14 servo case easy installation Just plug throttle servo output Weight Approx 1 oz Sensitivity Accurate within 02 Volts Servo Pulse Unit shipped positive pulse systems negative pulse available upon request SERVO GARD comes complete pre-wired pigtails servo connectors choice installed specify connector type order SEE YOUR DEALER OR ORDER DIRECT DEALER INQUIRIES IN VI TED Price $3795 Postpaid Specify connector type positive negative pulse ordering ENDORSED BY THE SPIRIT OF AMERICA SHOW TEAM LIMA OHIO R F Enterprises 106 N Main St Arlington OH 45814 419 365-5360 l/4 AXLE with support wheel Pant LIGHT STIIONCTIRES 4 5 6 7 86Tire Wt 9 oz WILL SPP0RTl2Olbseaeh NYLONMETAL BEARING 4 1995 5am 2395 6 2495 7 2995 SERVO DOUBLER C B ASSOCIATES INC 21658 CLOUD WAY h ARD CA 94545 FOB Hayward BIG BEAUTIFUL BOATS boats designed air-cooled Industrial Version QUADRA $13950 comes complete gas tank pull-rope starter engine cowl Other gasoline engines can used J-5 PICKLE FORK HYDRO UNLIMITED 6 foot 5 inch long 3 foot beam mahogany plywood kit spectacular sight water Get giant R/G Boating Fun wood kit16950 Above kit c/w J-5 DRIVE-TRAIN23950 J-5 DRIVE-TRAIN includes clutch fit Industrial QUADRA flexible coupling steel propeller shaft bronze bearings shaft casing strut brazed place rudder dia rudder bar 2 bronze bearings control arm mounting plate necessary bolts nuts collars drive-dog $9950 J-5 THUNDERMARINE 50 snarling speeding fiberglass hull capable running in-foot waves Deep V design 20 beam Fiberglass hull deck kit ply motor mount silver deck moulding$13950 Abovek cw 5DRVETRAIN $20950 Shipping Charges*a J S ENTERPRISES Included US & Canada P0 BOx 82 mont ontar 0 NOt 180 phone 1 519-644-0375 ylonRacing/Hager 0 Continued page 49 starting line glow plugs KB-iS survived four rounds flight plus numerous ground rpm checks Due fuel-feed problems could determine ifs specially-built FAI ship would superior standard Formula design Most importantly leamed heat timing demands accurate watches trained timers prevent errors elapsed-time method scoring thank Dave Latsha West Shore Flying Society fliers participated born-again FAI Pylon Race As contest season winds down again will still large group Formula fliers will begetting ready NMPRA Champion ship race usually biggest competitive race year Only qualify will attend order qualify flier must either finish top 20% NMPRA district finish top 10 AMA Nats work officer NMPRA years Championship race held Seguin TX October30 31with yours truly CD hope see Bill Hager 706 Glen Haven Dr Conroe TX 77302 RC Giant Scale/Beckman Continued page 51 drawing dont have original compare looks structural design identical just enlarged fact follow ing statement appears plan Unless otherwise stated wood medium soft balsa plans enlarged Brian Taylors 1-5/8 inches foot scale sizes balsa called out may changed benefit builder sizes determined enlarging factor result some odd balsa sizes mentioned really moot point however since model size should built medium soft balsa Any experienced Giant Scale build er would know substitute spruce plywood could recommend plans beginner useful out lines both B D versions shown some ideas structure would really have re-engineered true Giant Scale plans Just example wing spar dihedral brace shown plans -in balsa FW-190 plans apparently photoenlargement original drawings title block says scale l4 inches foot Measurement wheel drawings compared wheel sizes listed indicates increase approximately 2-3/16 inches foot size drawings would make good 90-powered model would want beef things up point enlargements small er-scale structures regardless quality original size can seldom used direct ly Giant Scale aircraft can quite useful however builder experienced enough recognize implement neces sary changes case real value Bob Holmans offerings will scale out lines size required Giant Scale builder information write Bob Holman Plans PO Box 741 San Bernardino CA 92402 Hostetler P-6E Jeep Wendell Hostetler first names surface con nection plans Giant Scale aircraft first two designs enlargements Skybolt Liberty Sport kitted Sig used smaller versions starting point structures engi neered larger airframes engines volved offerings date have good Stand-Off Scale models intend ed primarily day-to-day sport flying have very good exactly P-6E needs no introduction air plane modeler outlines Wendells version should satisfy hut real Scale nit-picker Airfoils far scale proven performers smaller-size models other Quarter-Scale efforts Upper wing span 84 total wing area 1798 sq estimated weight 24 26 lb wing loading area 32 oz per sq ft 24 cu Kioritz shown draw ings should provide good performance Construction typical smaller RC mod els hardwoods spruce bass etc husky grades plywood real stress points still lot balsa called out ribs formers could replaced less expensive foam-core board hollowcore door skins nice feature earlier designs Wendell included simple rugged removable tail unit can make big difference packing things small car large car Another nice feature Wendells designs cowls wheel pants other fiberContinued page 132 130 Model Aviation J-5 HYDRO UNLIMITED 7-foot long 3-foot beam mahogany plywood boat kit Tunnel-Hull thrill run water thrill watch wood kit$14950 Above kit c/w J-5 DRIVE-TRAIN $21950 SIZES AVAILABLE 48-2027-8 1/424-11 24-10 22-6 20-12 20-10 20-8 20-6 18-10 18-8 18-6 17-1216-6 Send S2OO Irefundable first purchasel catalogue price list See local dealer order direct pay postage handling shipments INDUSTRIES TELEPHONE416 ONT CANADA LOG IWO 936-2131 glass parts always available Tom Tom Keeling case can get cowl wheel pants belly tank T&D Fiber glass 30926 Block Garden City MI 48135 Art Chesters Jeep may well-known P-6E its another de signs just cries out modeled Span again 84 its single shoulder wing area 1350 sq weight kept lower end 19- 24-lb range indicated wing loading will slightly higher P-6E 35 oz per sq ft still quite acceptable Giant Scale aircraft Basic construction techniques sire same same Kioritz engine shown plans difference Jeep does have removable tail section Both plans show easily-implemented engine shock mount system personally am advocate solid engine mounting looks like simple way get bit vibra don isolation valuable side benefit getting see plans number inter esting tricks materials learn about engine mount mentioned above addition Wendell shows landing gear fillet indicates made Martin Senour Microlite have never heard before assume similar Epoxolite Im going look possi ble use strut landing gear fillets Sparrowhawk As Hostetlers plans date can heartily recommend two available Wendell Hostetler 1041 Heatherwood Lane Orrville OH 44667 Bob Beckman 8248 Holly Grove Ct Manasser VA 22110 Celebration/Woodbridge Continued page 53 become acquainted individuals share gut-level thrill uplift comes through building plane having fly right Nothing beats feeling freedom achieve ment self-satisfaction believed people felt way could create awareness schools communities flight means transportation defense warfare represents very spirit humanity mind approached Paul Mac Cready public figure known achieve ments realms human solar-powered flight first skeptical about church wanting step forward celebrate values flight Once convinced however gave generously time resources public Celebration Flight As turned Out name visibility instrumental gathering persons variety interests support local modeling clubs public schools model manufacturers distribu tors local hobby shops well good media coverage Celebration Flight success Festivities began 1000 am Sunday School public school children under direction teacher Priscilla Lett launched series hot-air balloons 6-12 ft diameter made studying history flight An art exhibition ofsculptural graphic designs Russ Miller various flight themes provided another gathering point Meanwhile Montrose Hobby Shop nated Hand-Launched Glider schoolage child attendance air traffic outside swarm miniature craft Indoors churchs special celebration service included prayers hymns readings flight themes written occasion manufacturers modelers winning designs hobby shop owners introduced Jim Scarborough brought greetings behalf AMA noted unique fitting occasion fellow modelers meet share non-modelers larger community pointed out goals ofreliability safety good citizenship AMA promotes sermon morning entitled Living Right Altitude drew upon Bryan Allens experience signaling abort attempt cross English Channel during historic crossing Gossamer Albatross June 12 1979 As raised craft 15 feet altitude could hooked drawn down found flying higher altitude much easier efficient suggested experience might parable could leam lives So passages Bible tell us have created live higher efficient level normally live prophet Isaiah wrote could rise up wings like eagles Jesus himself said have promised lifted up would turn provide lift us lift reliable constant manifested creative go beyond former limits find planes becoming extension own inner desires free forces life would pull us down Realizing need living higher altitude helps us avoid global abort due nuclear war famine Like Bryan Allen us can stand rise bit higher exceed past limits through modeling express ala OFf 161 84S APPIAN NAPOIEON OHIO 4384S KITS 1/4 SCALE SEMI KIT 3900 1/4 SCALE COMPLETE KIT. 19900 1/3 SCALE SEMI KIT 6900 1/3 SCALE COMPLETE KIT. 22900 PLEASE ADD $750 FOR SHIPiING 1/4 JCALE SPAN 80 WEIGHT 20# ENGINE QUADRA 5/3 sCALE IPAN 106- WEIGHT 2R# ENGINE QUADRA SEMI KITS CONTAIN SAWED AND SANDED PORMERS WALL WING RIBS TIES RUDDER AND STAB OUTLINRS SIZE aAre COMPLETE KITS CONTAIN THE ABOVE PARTS ALL PINE AND BALSA STRIP WOOD WARE SEND *1 00 FOR OUR COMPLETE CATALOG PHONE t419 599-2121 132 Model Aviation Grasshopper Wingspan 56 Channels 2 3 Wing Area 690 sq Engine19-35 complete 1/6 scaleR/C model kit designed assemble look fly like famous WeedhopperTM Model-C Ultralight aircraft Available choice four colors carlberg companies product 170 WEST PENN AVEROSEVILLE IL 61473PHONE 309/426-2771