Radio Control: Soaring

Radio Control SOARING Dan Pruss SHOW TIME Just between end flying season beginning build ing seasonfor Midwesterners anywaya group Chicagoland RC clubs sponsors its annual Expo Originally formed idea coordi nating common interestradio con trolled modelsover dozen clubs orga nized what now called Greater Chicago Radio Control Association Among its contributions sport com munity organization has provided outstanding service other large city hobby shop club should copy Using blow-up map city surrounding suburban area loca tions flying fields boat ponds race car tracks shown maps posted hobby shops also dis tributed clubs What does both modeler hobby shop dealer obvious can fly sail race question answered almost before its asked har mony various clubs comes together hobby dealer has built-in promotion going Thats way Chicagoland group started out about dozen years ago its working fine ever since Since ginning Expo has shown potential modelers Mecca After timing right So circle next Octoberexact dates announced Postal contests have going JM Glasscraft displayed Two-Meter Song Bird Slope Soarer Expo Glass fuse foam wings years good way generate friendly rivalry between groups cant afford time money meet com mon turf However Kale Harden Palm Harbor FL has come up four-club contest clubs four countries Last September Australia England South Africa USA competed Duration-only contest using FAI times landing tape Fliers top five scores club country became team its Scouts Honor scores posted four-round contest saw Sigmund Volker South Africa top scorer 1803 points out possible 1840 360 being perfect round Top team however team event went USAmore specifically Pinel las Soaring Association Florida Some familiar names included top dogs Dan Kramer John Gunsaullas Tom Con elly Walt Good Bob Wargo Final scores USA 8548 Australia 7454 50 Model Aviation thing look Sport Tote Sailplane sitting Tote serves either bench stand carrier dismantled bird Over dozen RC clubs band together host Chicago Expo October Its modelers manufacturers extravaganza Dan Waybrant Grand winner Scale Sailplari dl ui EApo great 1Ascale Jantar Note pilot figure Back April 1983 issue Dan ran series photos showing Helmut Wehren Switzerland made fast cheap molds Sailplane wings Heres detail plus updated method beefing-up leading edge area Dan has considerable explanation column sequence shows L RI aluminum mold-face gently shaped conform roughly desired airfoil shape roughly-shaped airfoil just before aluminum glued foam mold-bedfoam mold-bed skin glued place First step cut desired wing profile piece foam use foam bed tool form hold shaped aluminum face Note beefed-up area molds leading edgethis done flat warp-free surface after mold-halves separated South Africa 7353 England got blown out scheduled day rained out rain-out date new twist will added next contest scheduled first week March 1984 Speed task will added Duration FAI Speed make up roundbut Speed task will have 20-sec cap 20 sec less will 1000 points However will no bal last changes between tasks between rounds course means weight model will same both Dura tion Speed during given round Inci dentally no ballast change between tasks round form rules proposal Paris ClAM last December proposal looked upon favor countries referred back sub committee further study least other countty indicated will compete 1984 youre interested contact Kale Harden 3184 Brunswick Circle Palm Harbor FL 33563 LSF Level V complaint about LSF ever come way has think Level V requirement eight-hour Slope flight too long course complaints have come havent met challenge past 31 Level Vs cer tainly didnt come Larry Jolly now makes number 32 Larrys official eight-hour Slope came third attempt say official eighthour because first eight hours air old flying buddy John Brown attempting eight hours also ran battery/transmitter problem Larry plane flying handsoff less put own transmitter down helped John get things working again short order know Sailplanes As soon take eyes off youre flying goes off aint lookin hap pened Larry eight-hour 0815 matter fact attempt went naught because bird ended up 200 meters launch point next attempt ended after about six Continued page 145 Notch Lock Fuselage Construction S Formed Plastic Parts Hard Make Parts Pre-Cut Parts 0 Three Views Color Notes Formed Piano Wire Landing Gear 0 Foam Core Wings Extra Large Balsa Trailing Edges Eaay Plans Complete Instructions Aileron Flap Installation Retract Plans Available Separately Applicable April 1984 51 Dan Kramers Pineflas FL Soaring Associa tion hes president winner postal contest plane isa Scooter MA FullAllan -auui.u iwvug Size Plan No 422 scaled-up wingspan wing stretched 3 meters AustralIan 100 Postal contests great way cornteem placed 2nd great first Pinellas inter- pete nationalor worldlevel national Postal Contest column having travel further local field AIC 5 CATALOG $100 Send dollar bill torbUi poatage handling name ad ress catalog ofrr RIO sailplanes sport planes sport scale accessories STOP PRETENDING! fly high wing RIO trainer around Pea Patch Sunday morning pretend flying model real airplane dont have Stop Pretending Step up model real WW 2 Military Aircraft MARKS MODEL SPORT SCALE AIRPLANES arent flimsy stick fabric imported toys wing ribs showing airplanes tough like prototypes Best arent tricky fly After little practice can add flaps retracts local R/O guru Buy dealer see much fun fly air craft looks flies like real thing Messerschmitt .ME1O9G-2-$6995 Mitsubishi ZeroA6M3-$5495 Focke-WuIf19009$6995 FairchildPT-19-$6995 Grumman HellcatF-6-F$8995 Republic ThunderboltP-470-$9995 North American..AT-6- $6995 SCALE RIC SPORT SCALE BALSA COVERED FOAM WING CORES KITS FEATURES filled tank tried start up engine wouldnt run changed glow plug tried again engine still wouldnt run did notice fuel sort foamy just filled up fresh fuel wasnt too concerned Now nothing worked yelled help Inspection everything looked OK except fuel asked about what kind fuel using stated club fuel order fuel appeared contain waterand possibly some other chemicals Something right Fuel doesnt get bad sitting around several years fuel few months old Some thing terribly wrong right colorbut re semblance glow fuel Bill questioned about fuel stored After few moments thought brain back working again eyes lit up explained stored fuel also stored 10 gallons another liquid pink color similar container glow fuel other substance used purpose winterizing plumbing mobile homes RV equipment can now report has nine gallons winterizing fluid stored can also report doubt whatsoever glow engines will run antifreeze can also report antifreeze compatible glow fuel pumps because totally screwed up new Du-Bro fuel pump Nice try Bill couldve told couldnt work wouldve asked Great story reminds time flying field similar incident oc curred seems club fuel based product review product review product review Rams new accessory capable discharging really big 48-volt battery packsfrom 600mA up 4OOOmAl has same efficiency Rams famous Simple Cycler smaller battery packs BBC emits audible warning pack being cycled has deep-discharged level recom mended battery manufacturers can hook pack up charger re charge Use BBC will allow easily determine percentage charge re maining battery pack well get early indication cell failure Ram prod ucts made USA available local hobby shop Send manufac turer SASE complete information other Ram product product review product review product review Klotz KL-l00 oil bright red called fuel strawberry soda pop day club member couldnt get engine started discovered trying run engine strawberry Kool Aid seems wife mixed up same kind container kept fuel old milk jug took field him thinking fuel rushed home make sure wife didnt feed some fuel kids learned valuable lesson day Speaking valuable lessons own have access battery cycler sure give dormant radio system several discharge/charge cycles winter pre clude having sick batteries next spring Sev eral us learned hard way about peculiarities nickel-cadmium batteries first became available use RC learned cells left unattended shelf winter months often went bad spring ruining winter-built airplanes us favor dont let happen Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Soaring/Pruss Continued raqe 51 hours because rudder servo couldnt meet challenge Two months later after everything back place Larry took another shot An early no-wind condition gave him late start 915 sun set 455 day last 20 minutes would add other factor challenge chal lenge because sun went downso did wind 750 mark wind nearly calm extra altitude Larry gained paid off because plane coming down what looked like third ill-fated try winds picked up 508 challenge met 518 Larry Jolly became 32nd LSF Level V Congratulations Aluminum wing molds Back April 1983 column series photos showed make aluminum-faced wing mold big advantage pointed out quickbut accurateway build set true wings have molds source available copy same evening could make least one-half mold-set wing whereas epoxy molds took weeks man-hours Photos month show leading edge mold beefed up some added tips Helmut Wehren Switzerlandthe originator system 1 Use pure aluminum sheet 03mm thickness found perfect 2 After sheet initially slightly creased over sharp table edge fold sheet over gently press crease rest aluminum together Use rigid straightedge A-CHANNEL RADIO Servo Reversing Plug-Is Module Charging Jack Open Gimbals Dust-Proof Metal Case W13 Servos Deal Rate 72 mHz Only $7500 i 0 RIO features yOe will like nice lvw prive Special plug-is battery holders Also Nicad battery cvnoersioo pecks Priced $2000 parchased above radio good deep ** 2-Channel Digital Proportional Radio wIth 2 Servos wasted tIC teatores really low price. ThIs 10 $10000 note Onto $4000 Foil-Range RIC system Frerluencies changeable 27 mHz FCC approved April 1984 145 LAMP nsnnmco a, mtntoturlxatlen coils son, special mogsiiftcsttonl Hands-Free Magnified Lighting nly $3000 P0011 lied votremely esetal 60 Watt UL Listed leolbIe Arm C Big Battery Cycler @ $2495 plus $1 direct ordersno COD Ram 3736 N Milwaukee Ave Chicago IL 60630 f2V SOL.cnorvz mmmc- - e3S0 110 V SOLDERING IRON $300 HEATGUN NOZZLE 51200 OWIK-KLIP METER -$500 OWIK-KLIPwiISSWITCH -$300 eallt-In GLOW-PLUG TING HARNESS $400 4-WaPMETRIC WRENCH 5149 BATTERY BOX hIA CELLS 315300 Phone us well have Its way POLKS Model Craft HOBBIES Dept 2244 346 Bergen Ave Jersey City N J 07304 Phone 201 3328100 Orders Only Call Toll-FreeCalifornia 8002271617 Ext 126800-7723545 Ext 126 Please Ivolude Proper Postage Handling & Insurance Order Add $350 poe evod Full Payment Order personal check money order certified check COD MAJOR CREDIT CARD CUSTOMERS PLEASE ADD ADDITIONAL $350 SERVICE FEE CREDIT CARD CUSTOMERS Please inclede Accoent Numbers Denier InquIrIes ore netted I and Potriration Date SERVO CT U AT E 0 FOR RELIABILITY such T-bar aluminum square extrusion assure uniform bend spanwise direction 3 Using above step gently shape sheet approximate shape foam core 4 The critical part mold wing leading edge However part wing handled very simple manner a when foam core cut dis regard first 5% airfoil cut through block starting about 5% point b when aluminum folded over placed mold will con form mold leading edge following natural laminar flow 5 After epoxying skin foam beds using core keep shape aluminum exposed leading edge sanded halfway through 6 Open foam beds such manner use leading edge long hinge cracks two molds apart photos include some steps important shows strengthen finish lead ing edge T-bar aluminum butted overhanging aluminum leading edge void between stem T foam core filled epoxy step course done warp-free flat surface system has acclaimed Alps folk Swiss F3B team member Peter Gerber see May 1983 issue MA used build Gamma course molds arent bulletproof solidepoxy version accuracy still bonus theres time avail able yodeling Good Lift Dan Pruss 131 E Pennington Ln Plainfield IL 60544 PROTECT YOUR RIGHT TO FLY Safe Flying No Accident RC ScalelWischers Continued page 53 prises 1704-29th Ave SE Rt 2 Box 125 Austin MN 55912 WW II colors Petit Paint Co makers Hobbypoxy Products has released another its series mixing formulas authentic Scale colors German Luftwaffe Day Fighters operation 1940 1945 period 1940-44 Messerschmitt BflO9-F G models Focke-WuIf FWl9O-A models factory-applied splinter camouflage pattern upper surfaces using 74 Gray Green 75 Gray Violet undersurfaces sides fuselage painted 76 Light Blue BflO9s fuselage mottle pattern done 02 RLM Gray 70 Black Green 74 Gray Green FW 1 90s mottle combination 02 RLM Gray 74 Gray Green Formulas 02 RLM Gray 70 Black Green published July 1983 column page 151 1944-45 factory finishes switched defensive camouflage scheme 82 Dark Green 75 Gray Violet 76 Light Blue undersurfaces fuselage sides BflO9-G -K models FW 190-D models finished scheme Mottle BflO9s still 02/70/74 FWl9O-D mottle changed 82 Dark Green and/or 75 Gray Violet must noted field-applied modifications made suit local conditions Only factorystandard colors presented color formulas Gray Green 746 parts H8t Black 2 parts H70 Gray 1 part H33 Stinson Green 1 part H47 Bright Yellow Gray Violet 752 parts H81 Black 1 part H70 Gray 1 part H65 Bright Red 1 part H1O White Light Blue 76to half pint HlO White add 3 tea spoons H70 Gray 2 teaspoons H26 Light Blue 2 teaspoons H81 Black 2 tea spoons H33 Stinson Green Dark Green 824 parts H81 Black 4 parts H33 Stinson Green 3 parts H65 Bright Red 2 parts H49 Cub Yellow above mixed 11 HOS Flat Hardener authentic matte finish reference used colors Official Monogram Painting Guide German Aircraft Continued page 150 CHUCK WOOD Hank Clapk WOMEN5 LOB CAPTAIN JUST OTROGER TI-IATT YOURE BUG~ LOT OF WE GOT WOMEN TO aACK FROM TRIPYOU AR THE MEJ IN I-lIGN PLACES WORRY ASOUT7 ALMOST VOLI WOI4T BELIEVE T TROUBLE ITS WITH THESE IDIOTIC GOT SHOT DOWN BY ONE F WERE IN TROUBLE! YOU GOT MISSIONS YOU 1w 6LL ' itBACK HEREF 60 OUT ON s745 LI E ON CAPTAINID IM NOT WORRIED ABOUTANY~ MEN N AMY PLACESWE GOT MUCH WORSE CONCERN THAN MENU 146 Model Aviation SOUTHERN PRO RETRACTS Formerly PRO-LINE SOUTHERN R/C SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013 513 738-1576 IF THE RADIO WORKS THE LANDING GEAR WORKS IF THE RADIO DOESNT WORK IT DOESNT MATTER