FREE FLIGHT INDOOR INDOOR NATS SITE Abram Van Dover Category Manager free flight 1994 Nats shared information us plan fly Indoor Nats Lubbock heres overview site Lubbock Municipal Coliseum available floor space 105 x 210 feet oval shape As stand middle floor look up scoreboard directly overhead scoreboard cube shaped about 10 feet high 12 feet square will covered polyfilm make modelproof possible scoreboard too large remove building dismantling north side scoreboard cluster speakers removable will also covered polyfilm help models bounce off top Coliseum shape inverted bowl configuration lot time can lost high drift will kept about zero will have control air conditioning lighting As bonus chairs tables will available no cost Coliseum management does want us climbing catwalk up walls Maintenance personnel will hand retrieve hung-up models catwalk areas close Long poles and/or balloons should get models stuck along walls Check pros cons make choice hope see Lubbock 1994 Randolphs Rampage Following up record flights Cat II Cat III hangars Norton AFB March 1994 column Bob gained access hangar Santa Ana USMHAS flights two weeks apart Bob logged 5348 5506 world record sanctions force Obviously next target has Cat Editors note After Bud wrote column received word Bob has also broken Cat record aflight 3640 January 9 1994 flights made VP props despite conventional wisdom VP props useful low-ceiling sites GibbsModels Bob Gibbs placed fourth Team Selection Finals using English-style unbraced models some details wood sizes used additional comments Wing spars65# wood 095 x 034 tapered 032 x 034 Stab spars50# wood 075 x 031 tapered 025 x 031 Tailboom rolled fishing rod section tapered 225 diameter 125 diameter 155 inches long Motor stick rolled 25 diameter form 16 inches long stick construction conventional wing posts part stick 02-inch wing sockets glued wing leading edge trailing edge center rib Wing posts also hold tungsten bracesone 00 15 inches diameter wire two 001-diameter wires Motor sticks can lighter because never use over 30 inch-ounces torque Part Bobs reason working unbraced models storage Tray #4 substitutes props boom/finTray #5 holds three wings stacked above combinations tray #3one stab Foam-core board construction transportation factor Bob gives much credit articles Bernard Hunt interest subsequent success models Bobs comments box lid four shelves version made foam board 200 inches thick Foam board available art supply stores paint stores latter usually cheaper can find store carries stock box outside dimensions 265 inches long x 125 inches x 8 inches including lid carried three complete models plus four props spare motor stick boom/fin Akron box could have about 4 inches wider 25 inches higher still fit overhead luggage space planes took MD-80 727 L-l0l 1 Different airlines have different luggage compartment sizes L-l01 1 problem overhead compartments no good business class last row has lot unused space between seat supports center four seats Compared handling big box freight areas snap totally safe since handling box Inflated Dome Sites Rick Doig has CD two contests held 200 x 400-foot inflated domes 85-foot peak ceiling domes normally used indoor golf driving ranges typically have wide variation temperature Due thin fabric construction low evening temperatures influence early morning temperature sun shines translucent fabric high rate heating can happen establishing air circulation patterns May1994 113 two identical shelves Bob Gibbs box unbraced Fl D models holds stab motor stick boom/fin Tray #3 holds two motor sticks two boom/fin assemblies shelves place #4 inverted allowing three complete models plus spare parts fit small box completed box tied twine ready transport Gibbs photos SALES AND SERVICE FOR EVERYTHING 8/C EM 8114FF MIDWEST INC 118 EAST MAIN NORThVIILE IL CIDGAi 48187 313 34B DOSS FAX 313 348 4175 RF M*TE _____________#923/72 -72Mhz #923/75 75Mhz #923/53 3Mbz RELERSEM*TE Servo reversing module fits between Rx Servo Adjusts/sets neutral reverses servo direction Supplied wires add servo leads $1995 taiEflJJ*F SAE foi &flV# atalog ACE* AIRTRONICS* ARISTO CRAFT CIRRUS EK FUTABA HEATHKIT HITEC* HOBBY SHACK JR* KLINE* KO PROPO* KRAFT* NOVAK PRO LINE RCD* ROYAL TOWER HOBBIES WORLD ENGINES ETC. * FACTORY TRAiNED AND AUTHORIZED* RCMA #21 may desirable net effect sites seem suitable contests necessarily high profile events such FiD team selection World Championship events 35 cm Gym Stick Update Tom Vallee continues develop concept followup very successful MiniStick formula Like MiniStick Gym Stick has restrictive rules encourage less experienced fliers participate specifications Tom developed Monoplane 35 cm 1377 inches maximum span 125 cm 492 inches maximum chord stick length 24 cm 944 inches max 48 cm 1889 inches max overall length minimum weight 075 g 00264 oz Stabilizer area must no greater 50 percent wing area Microfilm braced surfaces hollow tubes other standard indoor techniques allowed variable props variable energy release such torque burner other exotic techaiques Right scoring standard AMAbest five official flights Flying Opportunities session series listed below carried over listing previous column CDs events beginning June 1994 send schedules ASAP Refer previous columns listings site contact persons CaliforniaBurbank Blacksheep Exhibition Squadron VMF-2 14 has monthly sessions second Fridays flying Cat site Luther Burbank Middle School 7-10 pm Tony Naccarato 2121 N Hollywood Way Burbank CA 91507 Tel 818 842-5062 CaliforniaLos Angeles area Monthly sessions Naval & Marine Corps Armory next Dodger Stadium Paul Avery 6360 Germania Ct Agoura Hills CA 91301 Tel 818 707-0282 CaliforniaMain County 20 miles north San Francisco Year-round minicontests 8 am 2 pm fourth Sunday month site standard basketball court 28 feet clear Contact Tom Brennan 21326 Via Colombard Sonoma CA 95476 Tel 707 938-2893 CaliforniaSan Diego Fun-fly Scale sessions 2nd Friday month monthly sessions 4th Friday Colina Del Sol Community Center Cat 5316 Orange Ave San Diego Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Tel 619 272-5656 CanadaOttawa Indoor contests Mondays 7-10 pm Woodroffe High School May 2 9 16 30 1994 Woodroffe High School located Georgina Drive left side near end street gym located left side school near rear accessible through side door Contact Dan OGrady 50 Largo Crescent Nepean Ontario Canada K2G3C7 ConnecticutGlastonbury Sunday session May 1 1994 Contact George Armstead 89 Harvest Lane Glastonbury CT 06037 Tel 203 633-7836 details FloridaMonthly meets sponsored Miami Indoor Airplane Modelers Association Delta Airlines Maintenance Hangar Tampa florida May 14-15 1994 Other meets Terry Rimert meet Palm Bay May 28-29 florida State Championships Palm Bay July 2-3 1994 Contact Dr John Martin 2180 Tigertail Ave Miami FL 33133 Tel 305 858-6363 IdahoMoscow Andy Tagliafico has secured Kibbie Dome July 1-4 1994 Contact Andy Tagliafico 650-B Taybin Rd NW Salem OR 97304 Tel 503 371-0492 KentuckyLouisville Flying sessions Tuesday Sawyer Park site 11 am-1 pm Also Saturday month subject military schedules Kentucky Air National Guard suite 10 am-2 pm Contact Mason Plank 3207 Oriole Dr Louisville KY 40213 Tel 502 634-8191 OhioCleveland area Weekly sessions year-round Cat sites site Willoughby Andrews School has 20-foot flat ceiling 60 x 80-foot floor area other site Meridian Euclid Hospital Euclid has 195foot ceiling 45 x 70-foot floor area Contact Vein Hacker 25599 Breckenridge Dr Euclid OH 44117-1807 Tel 216 486-4990 What Have Learned few may have heard remark 1993 USIC totally disgraced two very good models severely handicapped average model learned again essential good mental physical condition contest enables learn mistakes avoid future USIC happened after start extended period heavy work overtime So violated basic concepts good contest practice Contest Preparation Checklist Model TransportationAnchor models securely carrying box Whether drive hand-carry ship model boxes luggage airplane adequate anchoring model piece essential 1230 am finished packlng models Super Shuttle picked up five one-half hours later though Pennyplane motor stick Intermediate Stick prop drifted through box during trip found three minor points damage models view muddled head may have found real problem was shaky 114 Model Aviation L SIZE X 100 X 100 SHOWS ANTENNAS RFOUTPUT FITS ALL DIAMETER ANTENNAS WORKS WITH AM FM OR PCM SIMPLE SNAP-ON MOUNTING fatigue afraid keep working morning forgot finish securing parts Model PreflightAt contest assemble model place rundown stand wings fuselage level Stand about ten feet away examine models alignment sure wing washin/washout use appears correct Check stab tilt get close up check items Spar Strength IntegrityManually flex flying surfaces gently sure no cracked stressed joints spars will bend flex under flight loads Pay particular attention dihedral joints wingtip flexes enough tip twist wastes lot power during power burst Wing Alignment Under StressHold model arms length look straight model front model level sweep up down lightly load wings parts wing should track no change alignment Bracing wires loose enough waver during test will allow wing deform absorb extra power Motor Stick BoomGrasp thrust bearing rear hook stress motor stick sure thrust bearing firmly anchored boom plugs onto stick sure properly engaged stab tilt correct Lightly stress boom watch dimpling rolled boom longeron deflection built-up boom Gently twist boom watch seam see properly glued built-up boom sure cross-pieces buckie deform Prop Pitch TrackingRecord blade pitch two three stations along blade soon prop finished Repairs ceiling bumps warps other mishaps can spoil props alignment Prop trackingwhere blades perpendicular axis rotationis also important efficient operation prop should checked after collision repair unusual stress Check prop blades proper attachment Although may notice loosened joint between spar blade all-wood props very easy miss loose rib built-up props CG Location After Motor ChangeThis important model center gravity location other halfway between hooks change motor weight will change models trim little lot depending three factors much motor weight changed distance between CG center motor length wing chord 1/8-inch shift CG MiniStick model five percent shifta serious change same shift FiD about one-fourth serious still enough take edge off really refined trim Flight Pattern ObservationWatch model after launch checking factors Alignment surface alignment during climb No part wing can distort increasing power required climb amount stab tilt used should remain adequate hold climb pattern Climb Angle climb angle should consistent previous flights using same launch torque diameter climb pattern should have changed previous flights Altitude peak altitude should consistent previous flights using same turns launch torque RPMSerious fliers routinely check cruise rpm compute average rpm after flight Both sensitive indicators models trim general condition havent missed since logging five percent increase cruise rpm 64 Nats failing investigate until next day flight question placed fifth two minutes out first place Ive often wondered good flight would have checked trim before flight Plastic Bags Canadian Bill Henderson plastics expert acknowledges effect some kinds plastic bags used storing rubber noting plastic bags bad has good news prefer use plastic can safely test bags before use PVC-based bags bad guys due plasticizers needed keep PVC flexible Polyethylene polypropylene bags OK can identified simple test Fill bag water submerge PVC bags heavier water poly bags lighter bag floats up bottom safe rubber storage information taken SAM 86 Speaks newsletter indicated Bill first published information MAAC equivalent Model Aviation Pitch Oscillations During Cruise May 1993 column Bob Randolph asked about models fly smoothly steadily until power drops certain level after model stalls periodically Barrie Taylor Indoor Chairman MAAC Canadian AMA offers following suggestions 1 CG may too far forward characterized very good climb during power burst good-looking glide stalling problem appears between two during shallow climbing cruise model starts stall recovers after starts glide phase Move CG back 21 similar problem Peanut Waterman Gosling originally high-pitch wooden prop CG OK plane flew well during power burst As power dropped started oscillate adding nose weight didnt help What believe happening power flight speed dropped heavily loaded wing would stall problem first solved using lower-pitch plastic prop rebalancing switched lower-pitch wood prop flies very well Flame Red Deep Red Sky Blue Deep Blue Midnight Blue Bright Yellow Cub Yellow Dark Yellow Orange Black White Silver Perfect Paint high quality part fuel proof paint combines convenience superb results Perfect Paint will cover dopes epoxies metals fiberglass plastic smooth hard mar resis tant finish will crack chip P~UcheveronEhobbyIproductsU PO Box 2480 Sandusky Ohio 44870 Phone & Fax 419-797-2208 May1994 115 U COLORS SAMS MODELS England NEW Scale Free Flight Kits CLASSIC -w HAWKER HART 24-/4$2195 also available Lockheed FII7A21long$1495 Spitfire Mk 22 241/2$1995 add $7 airma/ SAMS Chapel Sandon Buntingford Herts SG9 OQJ England GASPARIN C02 Motors now SAMS Note US Checks & Stamps valid UK VISA & Mastercard accepted $-bIIIs SPECIALIST IN CUSTOM COX TEE DEE & REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY COMPETITION ACCESSORIES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF TUBING THREE BRANDS OF GLOW PLUGS HARD-TO-FIND HARDWARE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STITT SPARK PLUGS SILK 8 COLORS QUALITY DOPE BRUSHES S & 7 LOOP 114 RUBBERBANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLATES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $395 STOCK ORDERS SHIPPED WITHIN 24 HRS CATALOGS...THE DEST IN SCALE Best ScaleS400 ASP Model Aircraft Plau Handbook3500 flight speed slightly faster whole flight new setup Tissue Tubes Joe Krush uses shank drill bits form roll tissue sockets applies Chap-Stick work area hold tissue help separate tube after rolled After rolling layer mandrel covered Joe applies thinned Duco rolls tube twists finished tube until free end sticks down quickly pushes off using thumbnail Thanks SAM Speaks reprinting INAV Tom Green compiling Postal Contests History December 1965 Indoor News Views column Postal ContestsA year one-half ago idea indoor postal meets aired newsletter February 1965 concept caught strongly enough column established report results various postal meets game has become international scope meets taking place between Maxecutors Washington D C Wellington club New Zealand Because special conditions Indoor work relatively diverse types models show up Indoor sessions Indoor postal meets differ outdoor meets several matters practice First no firm requirements set team members group fly top scores group have meaning Second difference ceiling heights customarily allowed fudge factors established guess have worked very satisfactorily HLG simple ratio ceiling heights used multiplier 20-foot site goes against 25-foot site multiplier 20 sec flight 20-foot site equal 25 sec flight 25-foot site practice will work very equitably long ratio ceiling heights 15 less rubber Charlie Sotich came up fact top performances three ceiling heights varied almost exactly square root ratio ceiling heights ceilings above fudge factor 112 10-minute flight 20-foot site equivalent 1112 25-foot site practice seems hold true over entire range sites little has done flying Cat against Cat III check validity fudge factor over extreme differences ceiling heights Now 29 years later postal fudge factors first adopted suggestion Charlie Sotich have proved very effective first MiniStick postal used original rubber fudge factor MiniStick models ceilingscrub well very low ceilings results skewed led development special fudge factor discussed previously urationlMurphy Continued page 112 possible first edition Therefore should send him copies Special Events possess correct regulations Duplication no consequence simple task toss away what already has Lets make work once Walts address 926 Argonne Ave NE Atlanta GA 30309 Lets make him install larger mailboxokay Model FindersPart VII new commercial model finder has popped up low-cost audio category called Tattler product efforts rubber-model enthusiast John Watters John states five hours walking corn rows surrounding AMA Muncie flying site September rain convinced him time put something Coupes Wakefields would talk him Johns product compact unit approximately 2ttAs inches long 5/ inch wide /2 inch high Weight battery flat eight grams 28 oz includes handy miniature on-off slide switch battery saver Battery life 7-12 hours depending type eightgram weight makes Tattler lightest audio systems have evaluated far should useful rubber models John intended manufacturer recommends mounting unit recess top fuselage turning unit just before launch Operation little different similar units have reviewed unit beeps once activated doesnt start beeping again until nine minutes later ensuing beep high-pitched sound second duration 10 second intervals supposedly can heard up 300 feet away John claims nine-minute delay permits time get downwind foot acts battery saver unit has appearance topquality craftsmanship sealed components both sides its circuit board Cost $3250 includes 2 batteries plus $250 shipping Make check payable Triple J Products Inc PO Box 1232 Battle Creek MI 49016 Tel 616 968-7181 now add John Watters name long list cottage- industry folks continue fill needs free fighters technology advances Neat job John next session will review popular Walston Retrieval System relate some classic stories about its use field Until then. See ya downwind 4116 Model Aviation HLV-UI INVLNJURY AVERAGES OVER 9000 PROPSIII IMMEDIATE SHIPMENT VISAJMC ASP Scale Drawing Plain Book3500 RC Model World Plans & Consliuction guideS6OO Vrll Geninn Plain BookS80O PLEASE AD S2OO FOR POSTAGE Call 909 885 3959 credit card ordera f BROWN B-i RACER 114 SCALE 50 SPAN SO 4aT POWER PLANS 526 PP Epoxy glass cowl pants S4500 wing ribs SI 500 Bob Holman Box 741 San Benlo CA 92402
