Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595
Edition: Model Aviation - 1989/09
Page Numbers: 14, 16, 18, 20, 22, 138
Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595
Edition: Model Aviation - 1989/09
Page Numbers: 14, 16, 18, 20, 22, 138
Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595
Edition: Model Aviation - 1989/09
Page Numbers: 14, 16, 18, 20, 22, 138
Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595
Edition: Model Aviation - 1989/09
Page Numbers: 14, 16, 18, 20, 22, 138
Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595
Edition: Model Aviation - 1989/09
Page Numbers: 14, 16, 18, 20, 22, 138
Pride comes before stall Lifting off before reaching flying speed 1note elevator position home-built Glasair pancaked long grass alongside runway Fortunately no received injuryexcept pilots pride situation calied trying fly back side power curve can get away plane has enough powerand engine doesnt quit Best try Model propellers vs human beings Crash An eyewitness account Use electric fuel pumps gasoline Storing fuel Plastic jugs metal cans best FINGERS prop time seldom completed monthly Safety column out including least incident some described personal experience feeding fingers through rotating propeller hadnt received reports such happenings some time until last week called Mike Winter CD upcoming Scale contest Bealeton VA After asking would static judges contest Mike related personal finger/prop accident strange ly propeller lost Mike has Midwest Sweet & Low Stik powered Zenoab G-38 swinging 18 x 8 Zinger prop Although model taildragger Mike said its configuration such almost impossible hit ground prop engine equipped recoil starter means minimize er-in-the-prop cidents Mike choked engine first attempt did start turning prop backwards wind starter second tempt engine fired despite fact prop smacked third finger left hand engine burst life pain Mike suffering thought sure prop removed finger However examination revealed digits present left hand though fast developing red welt Since engine still singing its song no bloody finger taken care Mike elected go ahead fly About five minutes flight two models flight time developed very strange engine noise Mike wasnt immediately sure whether model other audibly trouble until realized plane no longer thrust immedi Continued page 16 14 Model Aviation John Preston Saiety812ornes First orthampton St NW Washington DC 20015 column provided address items concern regarding safety aspects model aviation activities Content column however opinion author does necessarily represent official position Academy Model Aeronautics tCT MEAN TO KEEP l4ARPiN-OHTHlSBUT 5ESLJ U FINES AWAY F1*-t THE PRtP i~a [v32]Uin u iu uJ jjU I] 11 eI WWi i . WE ARE SHOOTING DOWN HIGH DALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only SALSA SHEETS 36 45 30 1 182 33 3322 40 18 2 43 3162 45 14 2 56 1 323 37 1203 37 1 183 3748 31 3323 4458 37 18 3 5471 45 316 3 6382 55 14 3 738881 5163 85110 38 3 84124 71 12 3110155 34 3165191 1184 587848 3324 708458 18 4 8010686 3184 9312275 14 411013484 38 4165225138 12 4225281 MATCHED SHEETS42 3324150 184108 3164120 144131 IALSA STICKS 36 41 1161409 1 183810 1161214 3321410 3323812 3321218 181808 1814 116 18381218 18121624 3163161118 316381720 316122230 14141624 14381926 14122130 14343444 1414055 5165182128 38382737 38123246 38344255 36I5270 12123653 12344662 1215878 58564865 34346790 BALSA HOT LINE Cell 806 7456394 10 em -6pm Central Time cflsl SALSA TRIANGLES 36 4425 38 3830 2235 34 3445 55 IALSA PLANKS 36 85 250 3200 14z80 1123275 1124360 22225 23325 24435 33495 34888 TAPERED SHEETS36 142 65 143 85 382 68 383 58 123120 LONE STAREPOXV 504Ll--855 5oio556 15o598 30 0596 LIGHT 46 LB WOOD36 132353 120353 116353 332 363 18377 316389 143104 363122 123158 34 13335 116483 3324100 164115 3164133 144158 384236 124322 TRAILING EDGE 36 141 32 5161 14 39 38112 46 12270 INSTANT OL Ut 104 Thck298 1 o TS,298 204 TSck550 24 1hi550 must try 4-6 lb balsa SASS WOOD41 31631626 3161430 3163838 3161246 3163460 141442 143849 143485 383660 381270 383490 121290 1234 105 SUNDLE DEALS 20-116336699 201164361035 20-332 336865 153324 36955 1518336735 1018436695 15316336820 10316436835 1014336655 1514436930 1038336670 538436655 512336540 5124361080 10332448885 518448500 5316448600 514446645 * NEW * Hundreds new sizes accessories finishing materials Send #10 SASE lafest catalog SPRUCE STICKS 36 41 1817 25 18 18 14 18 38 316316 14 14 14 38 14 12 38 x 38 38 12 12 12 12 226 2232 2836 3450 4055 4565 4969 6077 6688 7587 HARD MAPLE 1 4 38 3838 38 834 1 2 34 IIRCH DOWELS 18 316 14 516 34 IS. 40 45 50 56 66 36 09 11 14 25 32 PLYDIRCH 48 1164x12835 1/32x12475 1116x12475 1/8x12495 PLY3IRCN48 3132s12700 118x12775 3/16x12625 1/4x12625 3/8x12725 81 112x12900 LUTE PLY48GROOVEDLG MOUNTS IZIeehes 383418140 383453240 123431645 SPRUCE TRIANGLES 36 383647 121264 3434 118x6175 118x12350 114x6275 114x12550 LONE STAR MODELS ConS 46 HandlIng Charge pay UPS Add $300 COD $400 extra PP APO FPO 1623 57th St Lubbock TX 79412 States Weaccept Vies Mastercard personal checks cOD 6I % tax Texas US currencyonly Minimum Wood Order $1000 SE ately closed throttle killed engine came dead-stick landing approaching model source strange in-flight noise immediately clear 18-in Zinger prop missing about six inches tip blade Whether both blades struck finger remains unknown However moral storyand reason Mike suggested put columnis should always stop engine ex amine prop damage should strike object engine running Mikes case both blades damaged con tact finger eventually failed during subsequent flight However risk injury others blade decided depart model still ground parked among others pit area too obvious jewel story Another accident oc curred during engine-starting operation re sulted very painful experience Lee Dargue Deltona FL modeler Lee editor Frequency Flag newsletter Sanford Aero Modelers sent copy sue written following descrip tion accident Five weeks after hernia operation de cided meet Randy Hanson help him overcome hurdle proper takeoffs touchand-gos emergency dead-stick landing pro cedures Since still under doctors care told lift anything over five pounds just took Randys airplane Randy performed preflight check process range checking radio sys tem 80-100 ft out reached limit range told him pace off dis Continued page 18 CONTROL YOUR MODELS RELIABLY WITH CRYSTALS FROM JAN ALL FREQUENCIES TRANSMIT & RECEIVE QUICK DELIVERY REASONABLE PRICES FOR FREE CATALOG CALL OR WRITE JAN CRYSTALS PO BOX 06017 FORT MYERS FL 33906 813 9362397 iri 65 3 TOLL-FREE 1-800-237-3063 IN FLORIDA 1-800226-XTAL FAX ORDERS 1813-9363750 2 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% serious modeler want performance CA BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-%40 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited 16 Model Aviation DESIGN RC pleased introduce THE WEASEL Customizable monoplane SPECIFICATIONS Engine size 40-50 2 cycle Radio4-5 channel Wing615 sq Wei ht45 5 lbs Over two years design development have gone EL YOU mind The4 detailed easy understand instructions make WEASEL quick build fun fly Advanced Sport Pattern flyers will appreciate excellent flying characteristics ability customize airframe suit eye need WEASEL can pour power tear up sky pull back cruise afternoon away Terms us Currency Only accept MasterCard visa coo $300 PP $450 $350 handling Ohio Residents add 6% sales tax Designed Engineered RC Designs 75 Price Dr Wilmington Ohio 45177 382-2158 Business Hours 4 pm 8 pm Weekdays/12 6 pm Saturdays /Sundays chance Expires September 1 1989 VH5-4 HOUR FORMAT 59NEWt tape youve waiting finally II youre new hobby just want learn secret of wood plane construction forYOUl PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRcRAFT CONSTRUCTION APPROX 4 HOURS ON o Radio Installation e Straight wing building e lnstaliing hinges 0 Shear webbing Applying FG cloth 0 Servo installation Setting ups naw radio Built-up tail surfaces e Slab tail surfaces Aileron installatIon 0 Fuel tank installation New engine setup 0 Fuselage construction OBUILDING STRAIGHT 0 Installing puabrods e Covaring film Eliminating warps Aligning Balancing Final checkout ePLUS MUcH MORE! CREDIT CARD CUSTOMERS Use toll free number place order Have MasterCard VISA ready call OR mall $2495 S & H PLANE VIDEO MasterCo PO Box 23128 Des Moines IA 50322 lows residents add 4% sales tax r OAT 18003838251 tance would have reference future range checks As baby-stepping back yelled out going go ahead start engine took normal Johnny Bench squat held plane about 45 angle myself attached glow plug clip engaged trusty Sullivan Hi-Torque electric starter metal spinner happened no time evasive maneuver spinner prop nut prop backplate flew off high rpm high torque starter caused propeller really revving up literally flew off crankshaft blade tip hit ground front ricocheted up struck member family jewels After ing what some people might construe varia tion Indian Rain Dance finally able take deep breath lean over side Randys pickup bed regained compo sure checked damage horror saw blood oozing left testicle running down leg brandnew glass-filled plastic prop its sharp edges made clean slice impact its tremendous thrust left just bruise As time passed finally able walk again al though stride now resembled Igors gait blood finally stopped Randy asked wanted go doctor Being dedicated ler listed priorities told him would later came fly So fly did able make through rest day although strange-looking grin face night got undressed eyes resembled Barney Google left side swollen twice its size solid black blue finally saw family physi cian told take several hot baths day wear supporter However time Continued page 20 18 Model Aviation DGA DesIgns @0 D0A 00 DCA Deslgns 0 0 0 vi Iiif 0 0 QUARTER SCALE PLANS Quarter Master Spor Quadra 35. 73 Span E-Zbufld. $2i UGreat Flyer.*5wIKIAAVIIb.PPO 0 DAVIS DIK 908 Span. Quadra 38 power aimilarPPD SSiJ Ii 1933 KINNER SPORTSTER IS Modal K.117Span.Q35 power peo 4-CYCLE PROJECTS tPPD E 1/5 901 a4 Apfl no 5Ie1A ________0 DAVIS 0-1K00 aO3 Span.4 45 4cycieoraimilar. .PPO IJf Two Inoh 01e slAt 50010 1933 KINNER SPORTSTER50 MOdel K.75 Span. 81-75.4cy POD Si 5 o roduowi tron 9010 plOflo. oh 01000 SlAt 0 0 ________0 0MOr O0A PIn0 OuwIna PHOTO DOCUMENTATION PACKS available e Plans ALL PLANS ROLLEDSHIPPED UPS 00nplt w/IntrAuOAIOn Sookietif Send sl00 Catalog Nw York abA ROOAO odd qu .i. tu. 5nd enoo 0000.. Allow 3w.k OhOkAOOIr 0 . $9695 Introductory offer. $8695 took bath pain got worse member seemed enlarge After two days extra pain called surgeon operated hernia moved postop check up couple days der get second opinion Thank God did surgeon said blood vessels still open pumping blood internally hence large size grown Ice what needed control bleeding said mother nature should absorb blood about two three weeks good news felt no permanent damage hernia operation such success would have no limitations far lifting etc have related above incident point out potential hazard starting model aircraft en gines Randys prop wasnt first fly off witnessed least three others past week guess could consider myself lucky could have put eye out impaled heart no telling loose whirling prop might fly What have buzz saw no guard over blade protect us come complacent Always have lot respect unprotected swinging blade previous issues Safety column has dis cussed keep props flying completely off crankshaft during starting tuning oper ations best knowledge no engine manufacturers currently supplying selflocking prop nuts cotter pins other means preventing complete disengagement prop about engine manufacturers wants first Eyewitness account Two weeks ago drove Marylands Eastern Shore attend full-scale Continued page 22 REAL SCALE MODELING FOR GIANT SCALE BUFFS * 07 CcrJNAJecny$37 65l4MococderB26 $49 84 Pokke 07 Pro$3 01 DII MoeqoOo lb $42 70 Boylco Ooe-Beo 532rj 108DB MooqoBocob $55 60 Hoocold P140 80cc $3i~ Slooo PTl7Koydel $56 60Sopecocorice 568 $24 k Widooc 961 869 89 Sopoocoloce S6B 835e 71 bog DC-S 1C471 535 63 Cccl Hoock 9-68 $42 95 Doog DC-S C471 $55 94 Cccl Hooch P68 $54 6 HoochTeooco 13 $32 74 DoolilIe n-B 11 $48 64 Slooll Sky-Cc $10 95 Mococooope Spool 536 72 Co52U1 /4 LBS $46 0251/4 LOS $36 14 628ocood Roce Ike 54568B iI4 7oTccnc,W-WRoc$3Set 50 63 Coo Gokk Fl C $42 107 Be 94Cc Cohk FliC $541 69 Lodbe goNO 211 $28 66 DeHoc Coooel bc L odhe go 145211 5398~ 63 HoocMrMclIigon $33 96W NW INoc bc oocM1MoIIigo1 04 108 Fo ch PT 19 0 $59 63 Boecg P-26A Fl 836 60 Woco Tope W og $36 84 Boeing P-26A Fl 84W 90 Woco Tope W ng 84W 69 Woco C-0 Coki, $36 75 d Lyooode $32 64 Beech Cu-B Slog $30 100 Weo64Lyoode $49 96 Beech C17-B Slog $49 57 Pod T 10 4 AT $36 55 Lock 11 Oleolco $30 76 Food Toool 4-AT $48 83 lock 11 EIeclo $40 114 Pod Tojocolr 4-AT $65 ooc T/W 587 $18 96 Bellonce Ajococi $40 Slonoon T/W 087 $26 93 Loeoicg C2Aoopk $69 S,cooo TW01783SB Grccrc J2-P Ocok$39 59 $,sloI Plc 92-8 $20 78 Goon ST-F Dock $56 118 IoNIc1 Plc F2OB$4 -134 Lock Al Eopoeoo848 , Peoco$4 -62 Lock Air Eopoeoo$34 ~56 Cc, WocIck P40$2483 Lock Al Eceoc,836 55 Heolk Bob Boll024077 WWco 121 Re4L$48 cc600051 Coloojo P4053563 C Seohooock F7C-l845 * 00 VOOI Cocoi P6006994 C Seoboonk P7C-l857 70 Lock LoolcIng 9-30 138 108 $ikoo S 38 Aoopk $49 epSeoBee Ac $24 60 Boocg 100 Spocl $36 74 8epOco-Bee Are 839 90 Boecg 100 Spocl $49 70 Flee J-3 Cob$39 72 Nolkcop Goccono $48 106 Ponec 5-3 Cok839 96 14olkroO ISoccoono $75 98 Lock Hodon loch $38 9001ieA Looc 3/14 $56.. rooc 969 HolIcol $20 60 SliccA Looc 3/M $42 77 Boeoo 8-170 FocI 025 120 SliccA Looc 3/14 502. 103 Boo 0170 Pool $55 78 CocolCorPBY5A $42 60 Weoll Wkjrlocjcd 833 104 CoooCoo9BY-5A $56. 68 N Acoec Nocioc 839 65 MCklco Cllppeo $6560 BBocooeo V-Toil $39 97 MCloico Clipper $75 77 Locooke Sedoc 825 62 Coorlol NC-4$59 72 NA 8-35 Bocoker $49 94 Coon, NC4$69 1401 Sd4 Thc DeolerFrice,okec 10 chooge cocce 00100 oecoceo occecee clot 01000 rI*N Ooeol400 SOc Up 6-122 Fool Alocoy rod 0 Add 10% Ic oIl ordec Ic chipping & icc. dc 10 USACoo&MeeEIeockeleill5%125%iIkYobrl iJ Picloriol cololog 8200 icclode Pcice LIl Pice 161 ceclloc 010cc 010018k9 ci, loceigo odd $I00 CLEVELAND MODEL & SU PPLY Co 0009 cO cewoeerocxome~ocl0lIolO8 floor dIEO--Ioct Old coccccllscocUOI 103071 DETROIT AVE CLEVELAND OHIO 44102 ooococoeeWHeoIolO Ohoce loT 157141ST lQo DSTl12161 96I2000,coc-ccooecoo 20 Model Aviation antique airplane fly-in After several weeks rain very cool temperatures weather event turned out nearly perfect lo cation fly-in grass airfield known Horns Point about Choptank River empties Chesapeake Bay ac tive RC Scale annual Horns Point fly-in must brings out some best vintage home-built aircraft Mid-Atlantic coast year no different Some notable aircraft three de Havilland Tiger Moths arrived formation de Havilland Chipmunk RAF markings greenhouse canopy Brunner Winkle Bird Navy N3N-3 Republic Sea Bee % full-size Nieuport 11 lots PT-17s -19s Cubs Cessna 140s etc Horns Point has two major grass runways ar ranged X active runway roughly east/west north/south runway used parking aircraft fairly strong breeze out southwest appeared cause some arrivals have ground looping ten dency Spectator control consisted merely keeping pedestrians off active runway aircraft arriving departing run way crossover point usually large crowd gathered either take videos/photographs departures arrivals just waiting cross south leg north leg inactive runway process viewing static air craft Despite stiff breeze departing aircraft did become airborne until reached passed runway crossover point However talking old modeling buddy Lobserved home-built Glasair think lift off sig nificantly before reaching runway crossover point pitched up very unusual angle tack proceeded wallow full stall before sinking back earth striking ground about 100 ft off north side active run way uncomfortably close spectators standing incident points out reason separate people airplanes both full-scale models just never know error judgement equipment failure going result air borne craft fast becoming earthbound case wondering pilot home-built exited aircraft unaided ap peared unhurt cant say same either aircraft no doubt ego Electric fuel pumps call last week Bill Cann old friend NVRC club member now flies lot big birds powered gasoline-fueled engines wanted know would OK use electric automotive fuel pump fuel defuel models particu lar pump Bill wanted use AC Delco unit said heard electric pumps use gasoline prohibited either AMA IMAA responded Bills inquiry stating aware AMA IMAA prohibition use electric pumps gasoline fuel discussed safety automotive electric fuel pumps concluded since seem safe enough intended application pumping gas carswhy shouldnt safe pump gas used model airplane engines told Bill would mention next Safety column see what comments get read ers Any comments Meanwhile went through file marked Fuel Hazards found number letters readers reporting fires explosions involv ing cans containing alcohol-based fuel tITYFUELI GAL 4 GAL 24 GAL 80 GAL 128 Gal 54 GAL 1TOTAL $ ordered MIXTUREDRUMAMT RED MAX PREMIUM FUELII Easy beginners powerful expfl AvaIlable synthetic castor bland RED MAXO$999$7A9$719$689$599$150 .......RED MAX5$1152$864$841$772$891$212 RED MAX 10 $1288 $985 $939 $862 $772 $266 _______ RED MAX 12 $1312 $1029 $1002 *919 $823 $301 _______ RED MAX 15 $1488 $1094 $1065 $977 $875 $336 RED MAX RACING FUEL Trophy winner foe plans boats ft cam two boat Wends castor ok up 40% nltro RED MAX2O$1735$1a32$1299$1190$1088$464 REDMAX2S $1988 $1474 $1435 $1317 $1179 $541 RED MAX4O $2536 $1905 $1654 $1701 $1524 $774 RED MAX 50 $2822 $2192 $2133 $1988 $1753 $929 RED MAX 80 $3305 $2479 $2413 $2214 $1983 $1084 REDMAXeS $3497 $2612 $2552 $2343 $2096 $1162 RED MAX 4-CYCLE FUEL Eliminates detonatIon ft kickback 4-cycle engines smoother Idle ft power 104 CYCLE $1363 $1022 $996 $913 $818 $296 154 CYCLE $1588 $1188 $1136 $1042 $933 $375 RED MAX HELICOPTER FUELI Extremely smooth running extra dafoamer drk color speclel heavy oil hellcptrs 10 Helicopter$1391 $1043 $1016 $932 $835$309 iSHelicopter$1583 $1187 $1155 $1080 $950 RED MAX PERFORMANCE FUEL High flash point heavy oil use wIth toned pipes ducted ten ft other heavy dty app 5 Performance$1200$900$876$804$710$331 10 Performance$1391$1043$1016$922$835j $309 _______ iSPerformance $1583 $1187 $1188 $1080 $950 ___ RED MAX PATTERN FUEL Proven beat fuel pattern engines using pumps tuned pipes SPettern $1198 $ 895 $ 870 $ 795 $696 1 $225 _______ 10 Pattern $1375 $1036 $1009 $ 915 $825 __ .........lSPattern$1538$1175 $11AS $1050 $940 _______ Power easy starting power smooth take offs power intricate maneuvers Red Max makes engine come alive power performance never expected can have power Its phone call away Power today next week next year Red Maxs secret gredients keep engine last ing longer running power fully other 100% money back guaran tee com pletely sat isfied reason Red Max has power better idle better wear char acteristics 22 Model Aviation Order Form CALL OR USE THIS HANDY ORDER FORM TO SPEED YOUR ORDER FILL IN OTY ON THE LEFT THE TOTAL ON THE RIGHT Freight free pta gale No hend ling cherge Freight collect drums Deduct 3% prepay Mix ply Total ply dster mines price SC orders add 5% ales tax Dealer club prices avail Accept credit cards checks COD ICOD add $2 per cerlonl Personal checks may held until cleared RED MAX FUEL Continued page 138 RED MAX ECONOMY FUEL SpecIal blend budget conedous uses InexpensIve oH pkg. amazingly popuier _____SEcorromy$1036$777$766$694$822 lOEconomy$1116$837$814$747$688 15 Economy$1188$888$843$774$693 RED MAX DIESEL FUEL Superior diesel beck lIst populer demand customers Bell Bearings $1767 $1326 $1290 $1194 $1050 DiaelpsBemiip*1867 $1426 $1390 $1254 *1150 SUPER TIGER 3000 FUEL beat smoker fluid 2 end 4 cycie engines Smoker Fluid$1288 $988 $928 $862 $772$266 CUSTOM BLENDED FUEL AND INGREDiENTS Available type engine use Cell price Mm gsiion boatscars-helbooptsn-spead-pattern-scale-% sceie-kevan-ignltlon-st3000 $188 ____ $187 ____ $213 ________ Grand Total other fuel PLEASE PRINT CITY ISTATE/ZIP CARD TYPE AND ' PRECISION MODEL PRODUCTS /ZIIflJ Made USA j7BARSTOCK ALUMINUM SPINNERS RetailAppros PriceWeight $1395058 oz 1495095oz 159510002 1695160oz 1895150oz 1895190oz 2095170or 2295220oz 2495200oz 2695260oz 2895250oz 3695340oz 4995470or 5995520oz 6995570or 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available tn Stzes Add $3 00 Per Sptnner PROP NUT ADAPTORS V Size . 1/4-28 28/7mm .6x1Omm 7x1Omm 5/1624.. 8x1Omm 8x12Smm 3/824 Approx Weight 061 061 or 063 or 082 076 076 02 076 075 sz 117 oz 115 02 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 / *ALL PARTS PRE-CUT & PREPAINTED O4/ BUILD & FLY IN TWO HOURS PAPER AIRPLANES 433 NIHOA STREET KAHULUI HI 96732 USA CATALOG $750 Contains 1000s paper airplanes postage stamp size 6 foot wing span Gliders rubber powered Diecut youcut Largest known source paper airplanes world Cost catalog deducted 1st order over $2500 ASTOUNDINGt CataLog AIR aL4plane aboue $1050 ptua $250 pohaga Letters Editor Continued page 12 sick 60 40 did fine job Keep up Homer Show young kids Beno Echerd South Padre Island TX Safety/Preston Continued page 22 associated gasoline-filled fuel cans let ter did catch eye dated September 1986 came Ernest Razzano li censed A&E mechanic 50 years experi ence Ernies letter responded article previ ous Safety column concerning hazard hav ing fuel cans batteries close proximity sent photos flight box using did use automotive fuel pump dis pense gasoline However Ernie has battery powering fuel pump located separate flight box also houses electric starter phone jack battery box used make electrical connection would welcome letters opinions pro con use electric pumps dispens ing gasoline models particular besides Ernie Razzano using automotive fuel pumps purpose would care tell us about setup Before leaving subject fuel fires/explo sions Jim Baxter Spokane WA sent news paper clipping headline Arson Sus pected Hobby Shop Fire Jim highlighted segment clipping stated 30 50 gallons methanol-based model airplane fuel stored building did ex plode letter Jim commented Since store totally gutted suspect fuel en hanced intensity fire Im sure did reason mentioning newspaper ac count question whether fuel stored metal cans safer plastic jugs guess fuel hobby shop plastic jugs melted allowed fuel burn cans metal its guess may well have exploded Any comments safety metal versus plastic fuel storage containers will welcome responding advertisers mention read about ModelAvlatlon Prime Cut/Sarpolus Continued page 31 glass cowl must trimmed necessary clear engine cylinder Mount cowl using four nylon bolts fit holes tapped fuse lage sides Tap holes A-in plywood aluminum landing gear held place A-in nylon bolts tail surface foam cores also sheeted %2 balsa Cut sheeting apart along hinge lines trim back allow added balsa edging Join horizontal stabilizer halves reinforcing fiberglass cloth epoxy Glue stabilizer fuselage elevators controlled its own servo pushrod Glue vertical fin place rudder linkage via pushrod cables tail wheel steering linked rudder small springs Balsa blocks must shaped installed behind fu selage top pieces side fin recess surfaces accept A-in plywood pieces nylon horns mounted control surfaces ailerons elevators rudder horns retained self-tapping sheet metal screws Epoxy plywood mounts control surfaces recommend using larger 4-40 threaded rods devises linkages Fiberglass tube pushrods used elevator linkages use iAin plywood servo mounts fuse lage Using separate servos elevators its own pushrod allows pushrods perfectly straight Since pushrods cross over within fuselage elevator servos mounted % higher other keep two pushrods rubbing together made up aileron extension cables Y harness two aileron servos mounted wing 1200 mAh battery pack used wrapped foam rubber positioned re cess cut foam fuselage top block bat tery pack can located behind wing posi tion necessary balance Landing gear tail wheel assembly can opy sheet aluminum landing gear can cut %2 aluminum stock available use Morrissey Bravo landing gear Sig Manufac turing Co secured T&D Fiberglass wheel pants inserting two screws through alumi num gear plywood block epoxied inside wheel pants Alternatively Sig B&B Special ties stock mounts wheel collar type leaf-spring tail wheel assembly heavy-duty model CB Associates 16oz fuel tank used space available 138 Model Aviation Paper Flying Scale Model Airplane $700 Part No IT-iSO-B fl175-B fl200B T1-225-B T1-226-B 11-250-B 11-25 1-B 11-275-B 11276-B 11300-B 11301-B 11-325-B 11-350-B 11375-8 TT-400-B Sire .. 1112 .. 13/4 .. 21/4 .. 21/4 FAt .. 21/2 2-1/2FAI . 2314 2314 FAt FAI .. 31/4 3112 . 3-314 . 4 Part No 11140-A TI 147A TT6 10-A TT-7 10-A TI- 516-A IT- 518-A TT-8 10-A 11-825-A IT- 375-A IT- 125-A Retail Price $495 495 495 495 495 495 495 495 595 595