Radio Control Scale Bob Dolly Wischer THE SCRATCH-BUILDERS Definitions what meant term true scratch-builder have considerable variation Most commonly build published drawings made other person designer small group prefers build own designs satisfy cre ative urge quest truly different airplane model An smaller number design build ultimate examples Scale model airplanes near perfection achieve national acclaim Only small portion worlds airplanes have modeled some obscure types among attractive Lack infor mation three-views photos general docu mentation can quickly sidetrack modelers de sire construct lesser-known aircraft Desire key element modeler really wants something entirely different will al ways find way pursue research selected prototype would rather dig out buried information build models tells us joint effort between researcher builder may worthwhile have heard argument no true scratch-builder because person didnt make own engine radio balsa paint covering material theme carried extreme claim scratch-builders would mining bauxite ore aluminum primitive handmade tools growing own balsa trees However sometimes hear modelers cutting balsa spruce lum beryard planks can expect mountain scrap sawdust general accepted definition scratchbuilder builds models structure raw materials including visible portions its exterior builder isnt expected manufacture own engine transistors models wheels usually thought exception basic concept now numerous modelers producing necessary item example see photo Robert Cooper flew Curtiss JN-4 Jenny Beaton VA June Scale contest hosted Howard County RC Club Model Solartex-covered weighs 8 lb uses 05 75 four-stroke power Its highly-detailed dummy OX-S engine R example scratch builders art rocker arms OS dont completely fit inside cowling can seen peeking through just above OX-S Typical scratch-builders high-quality models Jack Swifts Waco 10L 4-scale four-stroke Magnum 90 powers 6-ft 1 2-lb craft wing rib-stitching real simulatedl Doug Braddock scratch-built Sparmann P-i R Westburg drawings Landing gear has functional shock struts Power 05 90 two-stroke Cowl aluminum remainder Hobbypoxy over Coverite 42 Model Aviation Dee Harwell produced 612 cu copy Kinner B-5 radial engine using 05 16 heads valves Bore 1092 stroke 1312 Weight 1s8 lb Merritt Zimmerman demonstrates ex tremely slow idle speed scratch-built scale 3/2-horsepower Cirrus engine dis places 41/2 cu can transition full bore less 2 seconds uses wet sump lubrication oil pump Sopwith Camel last months column En gines also becoming part building skills elite group wish everything possible themselves engines have seen glorified dummies scale models full-size powerplants produce output comparable commercial units small group modelers go limit abilities create remarkable Scale aircraft unknown readers list includes Pat Massey TX Bob Nelitz Ontario Canada Steve Sauger MI Dick Speidel NY Merritt Zimmerman OH Earl Thompson CA Jim Funduk NC name just few fellows design own models invest necessary time effort research handiwork surfaces exposi tions rallies sometimes contests have common philosophy get much hobby needs extra effort input side Rarely designs published may have infinite patience producing masterpiece model come impatient begin new undertaking construction lines never drawn others may copy exceptions course Bob Nelitz has always made complete construc tion drawings available Most scratch-designers working drawings con sist very few pencil lines large sheet Continued page 129 RED WE YRREE 75E0 S ObneI 504 cedeo CA 93422 4564717 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH FUEL FInING SIZE ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 1125 10. 250 00 SH616 2 FT PKG $135 5H-661 25 FT ROLL 51325 LARGE lG93 10. 215 00 5H-2901 FT PKGS 85 5146462 FT PKG51 15 514291 25 Fl ROLL 11295 MEDIUM 062 10156 00 514-2881 FT PKG$ 80 514-6452 FT PKG$110 514-28925 FT ROLL51155 Pay Fancy Colors * Heat-Proof melt resting directly hottest part running model engine Wont Harden Fuel Resistant cuts Tears~NOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 March 1987 43 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS$495 B/S TRIBUTED BY _____________________u WE ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 1/16233 3/32 240 1/8 243 3/16249 1/4 256 1/32337 1/20337 1/163374931 3/32 3445937 1/8 3547145 3/163625255 1/4 3739561 6/16365 3/8 38812471 1/2 3110155 3/4 3165 1/164507649 3/324709456 1/8 48010668 3/1649312275 1/4 411013464 3/8 4165225 1/2 4225261 MATCHED SHEETS 42 3/324100 /04108 3/164120 1/44131 BALSA STICKS 3645 1/16 1/409 1/16 3/810 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/210 1/8 1/808 1/8 1/411 1/8 3/612 18 1/210 3/163/1611 3/16 3/817 3/16 1/222 1/4 1/416 1/4 3/810 1/4 1/221 1/4 3/434 14 140 5/1 05/1621 3/853/827 38 1/232 3/8 3442 3/0 152 12 1/236 12 3446 1/2 156 5/8 5/040 3/4 3467 BALSA HOT LINE Call 15061 745-6394 10 am 6pm Cnntral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa LIGHT 4-6 LB BALSA TRIANGLES36 WOOD36 4 4 25132340 38 30 301/20349 35116340 34 34 45332354 551/6367 63/16376 8BALSAPLANIS361/4380 24 853/83115 6 01/23139 003/43220 301420013300 2411/232751/16470 2611/243603/32491 3422225184100 44233253/164117 244351/44138 2833405304207 37346881/24282 46 55TAPERED SHEETS36 1/42 65TRAILING EDGE36 53143 851/4132 023/02 485/1611/439 3/83 903/81 1246 1/2312012270 BASSWOOD48 3/163/1626 3/181/430 3/163/838 3/161/246 3/163454 1/41/442 143/849 143/480 3/83/660 3/81/270 3/83/400 121/290 1234100 BUNDLE DEALS 201/6336685 201/164361020 203/32 40 15332436955 151/8336715 101/8436875 153/16336900 10-316436810 101/4338830 101/4436090 103/8336854 53/8 436625 512336540 51/2434055 103/32448645 51/8448485 5316440585 51/4440025 PINE STICKS 36 48 10181317 18141623 18 3/82027 3163101724 316302332 316 / 23040 1/4142637 14363042 14123447 30303752 SPRUCE STICKS 36 48 1/0 1015 8 141024 1/0 302029 3/163162534 1/4 143145 14 383850 30 304563 3/8 125570 1/2 126080 12346088 SPRUCE TRIANGLES 38 3/8 1 2o 1/2 34 6 01 77 HARD MAPLE 1/4 38 3/83/0 3/8 1/2 3/8 3/4 123/4 BIRCH DOWELS 10 3/16 14 518 38 IS 40 45 54 58 60 36 00 11 14 25 32 3PLYBIRCH48 15412525 13212425 1/1612435 1012450 5PLYBIRCH45 33212570 1812585 31612585 1412600 LONE STAR EPOXYINSTANT CL UEGROG VEDLG MOUNTS 9,L5r0451 TSck298 5 rre5981 TO/c29812 InchS 15cr/c5982oaThck5541LITE PLY483/034/10/40 30 rrrr5982oa 15,5541/001503834/532/40 18123001234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO accept Via Master Cad personal checks COO 41/O/o ra,c Tea US carrer/Cy 0010 M/rrmcrrr Order 51000 6Am03 RC Scale/Wiscers Continued page 43 shelf paper establish outlines feature locations builder draws upon experience assemble structure using know ledge gained previous models kits published drawings Scratch-designing can funor can series frustrations subject airplane can appear ideal respect may have simple lines leads believe will easy build may prove illusion Are lines simple because three-view drawings lack necessary detail Its best have good stock supplemental photos hand before making final decision proceed can expect building time stretched because hours spent decision-making actual balsacutting Scratch-building published drawings cir cumvents letdowns having work out details construction Probably 90% scratch-builders follow route serves purpose providing different airplanes tired seeing same popular types always present local flying field simply because profusion kits sizes hand Looking real challenge Scale modeling Try building designing scratch enjoy rewards satisfaction creativity Exhaust systems past has helpful routing exhaust Out Scale models engine compartment through muffler use sili cone rubber tubing flexible connector certainly lot easier use hard aluminum tubing bent shape Aluminum tube always needed annealed repeatedly order make succesion bends circuitous route present-day revolution favor four-stroke engine finding silicone rubber tubing inadequate resistance higher exhaust temperature encountered well-ventilated cooling air outside cowl Silicone tube four-stroke engine exhaust system melts away allows exhaust scatter oil residue over engine compartment inefficient two-stroke engines pass un burned fuel through exhaust effectively cools silicone tube prevent melt-down happens due cooling through evaporation same fuel passing through four-stroke en gine completely consumed firing stroke main reason fourstrokes economical fuel usage Exhaust temperature unquestionably higher four-stroke engines us have come physical contact hot exhaust pipe can attest difference An accidental touch two-stroke exhaust pipe unpleasant experience same four-stroke leads welt blister Silicone tube can sometimes used fourstroke exhaust system seal crack between two metal pipes fit quite closely main conductor exhaust gases Having length steel spring inside silicone tube no help either some exhaust heat can dis sipated through muffler attached engine silicone tube muffler outlet may survive should checked bench before instal lation valuable Scale model Another point may lead problems tight-fitting Scale cowl situation metal pipe four-stroke engine rests directly against wooden structure wood will char APPLIED DESIGN CORPORATION 738 Penn SI El 8n~44n CA 90245 SANDER awUSTABLE TENSION HAND BELT SANDER FIRMLY HOLDS PAPER FOR EASIER SANDING Padded lIsts curves Handy Hnld Eany Un MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFins Garnel AND EFFORT $135SANDING BELTSAnulli Water Prnel TEE c BAR ALUMINUM EXTRUSION SANDING BLOCK ler nun RUFF-STUFF SeN-adhenive nand paper e True Surace WesIWurOal 11 Inch $253 .. Heady Un 22 inch $371 RUFF 6 STUFF SELF ADHESIVE SHEET SANOMPER MANE YOUR OWN SPECIAL SANDING SHAPES Na meuny glue er drying tIme MedlumFIneSuperFhie 893 MINIosAw $7 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw hen rugged die-cant frame cemlertahle chip-preel pteutlc innest handle Receding anne ad guslahIn B hlede Riven gnnd wnrh acceun Cuts wued pleutic metal HARDENED MUSIC WIREextra hlndes-3/$1RR Add 20% postage Send 25 catalog March 1987 129 1 44 I/NiaB1DaUk5w fl2FWiLwQdiwM IJI I1UAUTCVflIII IVVMIUEE~I IWe want take advantage JR Radios Kalt Helicopters Webra Engines RIC Cars Iand accessories prices special can offer direcy through new FREE publicaon HobbyIst issue will packed full FREE offers andI discounts wont believe few specials waing you.I FREE postage handling pre-pald orders FREE Circus Epoxy glue set Aircraft Combo FREE scale pilot figure wIth aircraft kit So youre hobbyist whos ready save moneyPpr~ say YES fill name address 2 l ad back us start receiving EE issues Hobbyist~ uzPI call toll free 18007820022 I want super values RIO equipment Name_______________________________________________ Address__________________________________________________I I_________________________ 3132 So Highland DrCity State Zip___________________________________________ -a Las Vegas Nevada 89109 Customer Service Call 1-702-732-0022 Far Orders call Toll Free 1-800-762-0022 J advertisement iood thai 1st issue month point contact depending upon length pipe measured engine long pipe some cooling before reaching wood may problem Provide clear ance around hot pipe especially near en gines exhaust port aware possibility fire Scale models too valuable lose through kind accident Spilled fuel may also ignite burning alcohol isnt visible daylight isnt possible see flame until wood structure ignites FAI rules Some interesting rules-change pro posals have come Switzerland England Swiss asking complexity bonus setup changed provide 5% bonus wingwarping control 5% braced multi-strutted biplanes 10% biplanes undercambered alifoil 15% three wings engine bonus would changed 10% two engines including ducted fans Landing gear bonus would 5% conventional twowheel gear 5% retracts monowbeel tricycle 10% retractable conventional two-wheel gear 10% bonus would awarded model airplane prototype flown previous 1911 realm radio equipment Swiss asking gyro devices prohibited also wish see attempt flight eliminated Oslo World Championship attempts called meaning contestant wished postpone flight until end round caused serious delays lengthened contest time An official flight would model airborne 60 seconds Judges could permit repeat flights model fails start reasons outside control com petitor organizer such radio interference sudden changes weather Swiss also asking change definition overshoot maneuver pres ent rule states performed three-meter altitude difficult measure would changed below three meters Mick Reeves England has also come up interesting proposals asks rule takeoff must possible wind rigidly enforced means organizers would have provide flying field runway direction asks made permissible move model after taxiing provide space realistic takeoff Minimum dimensions 30 meters runway width 100 meters runway length available both directions Mick also asks dropped items tanks bombs etc static judged also wants see high low scores five judges deleted Silencers should hidden view inside aircraft Presently permissible add muffler between static judging flight present rule requirement contestant provide prototypes cruising speed should changed maximum speed since cruising speed military aircraft unknown Mick prefers have model static judged four meters measured models center rather present measurement nearest part model thinks color K-factor static judging too high should reduced six three static realism score would introduced craftsmanship score would deleted present Scale Detail static score would creased K-factor 10 stipulation simple aircraft would receive fewer points complex models Mick also wishes see engine size limits abolished completely Static judging would done after first flight order Continued page 135 March 19871 31 CA MASK CA glue works wonders building models right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumeal soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPMl though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies Yes Im sick CA fumes Send CA mask Enclosed $1247 shipping NAME ADDRESS_______________________ CITY STATE___________ ZIP___________ Li VISA Li MASTER Exp Date________ ANNUAL RADIO CONTROL EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO APRIL 10 11 & 12 1987 presented Weak Signals RIO Club Toledo Ohio Exposition intormation avallaoie D contacting Wayne Yeager co-director ticket address shown below ADVANCED TICKETS may ordered sending self-addressed-stamped busi ness size 4 x 9 envelope Tickets 38235 Castle Romulus Michigan 48174 phone 313 941-6661 Canadian orders must contain International Postal Cou pon US Stamps orders above 5 tickets must contain extra postage Include check money order US funds made payable Weak Signals R/C Club along 25 cents per order handling charge must state expo days tickets used prices $400 per day adults $100 per day children 12 under Deadline ticket orders March 31 1987 Ticket sales final non 4,nAhI orders program will returned near mid-March Tickets also available door COMPETITION CLASS NON-MILITARY SPORT SCALE PLANE AMA Rules MILITARY SPORT SCALE PLANE AMA Rules PRECISION SCALE PLANE AMA Rules PATTERN PLANE SPORT MONO-PLANE non-scale models SPORT 81-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models COMPETITION BOAT MILITARY SCALE BOAT HELICOPTER PLEASURE POWER BOAT R/C CAR WORKING VESSEL-UNARMED NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made uSA AERO-PACER $8900 Sport-trainer Span 64 Weight 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 543/4 Weight 5-6 lbs Wing load 15 oz Engine 45-65 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Dealer inquiry invited AERODROME MODELS LTD 2623 5 Miller Rd Saginaw Ml 48603 517 781-3000 RC Scale/Wiscers Continued page 131 condense time requirements World Cham pionship 4/2 days proposals coming other nations well will come vote during FAIs ClAM plenary session April 1987 would appear will questions settled meeting possibly some recent ones certainly indi cates lively interest FAI matters have heard rumors some top Scale modelers US seriously considering entry FAt competition especially since weight limit about lobe raised seven kilograms 153 lb rules-proposals may actu ally reach rule book always interest see trends thinking modelers elsewhere modeling world Hobbypoxy colors Petit Paint Co makers Hobbypoxy have come up new formulations cover mixing colors European aircraft such Fairchild A- 10 Thunderbolt operating Europe camouflage scheme mottled green gray lizard pattern national insignia changed low-visibility black outline place red white blue formerly used formulas follow FS 34102 Light Greenfour parts H65 Bright Red three parts H49 Cub Yellow three parts H81 Black two parts H33 Stinson Green part H70 Gray part H 10 White FS 34092 Dark Greenfour parts H33 Stinson Green four parts H81 Black three parts H47 Bright Yellow two parts H70 Gray FS 36081 Dark Graysix parts H81 Black five parts H70 Gray part H47 Bright Yellow part H66 Dark Red mixtures should used HOS Flat Hardener Bob Dolly Wischer S-22J Lapham Peak Rd Delafleld WI 53018 RC Soaring/Blakeslee Continued page 45 cross-country enthusiasts will want sou venir booklet last years Great Race has three-views specifications 15 entries also has photos top placers including winning Pacific Soaring Association Team Larry Jolly Ken Findlay Sue Beatty Greg Ford flew LJMP Comet Larry Jim Jolly designed specifically cross-country racing Send $3 check money order Jim Mclntire 23546W Fern St Plainfield IL 60544 BOX 429SKYLAND N uoi IIII SS0 sar complete line * SCALE DOCUMENTATION * FEATURINGALH INGSPHOTOS REPLA-TECH 1g87 INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG S250 VIDA OREGON g7486 PAW DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tulahoma Tenn 37388 March 1 987 1 35 QUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Dealer inquiriescatalog SOC invited BLUE RIDGE MODELS. FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm sqs41RES 5279& Up F505lOfl ToOls 21OOM5dflM Rd Metals C4lVPIfL ~LS CG 00 catsIo SpilflgflbldOtdO 45505 5513-322-8562 DH6O GIPSY MOTH$10900
Edition: Model Aviation - 1987/03
Page Numbers: 42, 43, 129, 131, 135
Radio Control Scale Bob Dolly Wischer THE SCRATCH-BUILDERS Definitions what meant term true scratch-builder have considerable variation Most commonly build published drawings made other person designer small group prefers build own designs satisfy cre ative urge quest truly different airplane model An smaller number design build ultimate examples Scale model airplanes near perfection achieve national acclaim Only small portion worlds airplanes have modeled some obscure types among attractive Lack infor mation three-views photos general docu mentation can quickly sidetrack modelers de sire construct lesser-known aircraft Desire key element modeler really wants something entirely different will al ways find way pursue research selected prototype would rather dig out buried information build models tells us joint effort between researcher builder may worthwhile have heard argument no true scratch-builder because person didnt make own engine radio balsa paint covering material theme carried extreme claim scratch-builders would mining bauxite ore aluminum primitive handmade tools growing own balsa trees However sometimes hear modelers cutting balsa spruce lum beryard planks can expect mountain scrap sawdust general accepted definition scratchbuilder builds models structure raw materials including visible portions its exterior builder isnt expected manufacture own engine transistors models wheels usually thought exception basic concept now numerous modelers producing necessary item example see photo Robert Cooper flew Curtiss JN-4 Jenny Beaton VA June Scale contest hosted Howard County RC Club Model Solartex-covered weighs 8 lb uses 05 75 four-stroke power Its highly-detailed dummy OX-S engine R example scratch builders art rocker arms OS dont completely fit inside cowling can seen peeking through just above OX-S Typical scratch-builders high-quality models Jack Swifts Waco 10L 4-scale four-stroke Magnum 90 powers 6-ft 1 2-lb craft wing rib-stitching real simulatedl Doug Braddock scratch-built Sparmann P-i R Westburg drawings Landing gear has functional shock struts Power 05 90 two-stroke Cowl aluminum remainder Hobbypoxy over Coverite 42 Model Aviation Dee Harwell produced 612 cu copy Kinner B-5 radial engine using 05 16 heads valves Bore 1092 stroke 1312 Weight 1s8 lb Merritt Zimmerman demonstrates ex tremely slow idle speed scratch-built scale 3/2-horsepower Cirrus engine dis places 41/2 cu can transition full bore less 2 seconds uses wet sump lubrication oil pump Sopwith Camel last months column En gines also becoming part building skills elite group wish everything possible themselves engines have seen glorified dummies scale models full-size powerplants produce output comparable commercial units small group modelers go limit abilities create remarkable Scale aircraft unknown readers list includes Pat Massey TX Bob Nelitz Ontario Canada Steve Sauger MI Dick Speidel NY Merritt Zimmerman OH Earl Thompson CA Jim Funduk NC name just few fellows design own models invest necessary time effort research handiwork surfaces exposi tions rallies sometimes contests have common philosophy get much hobby needs extra effort input side Rarely designs published may have infinite patience producing masterpiece model come impatient begin new undertaking construction lines never drawn others may copy exceptions course Bob Nelitz has always made complete construc tion drawings available Most scratch-designers working drawings con sist very few pencil lines large sheet Continued page 129 RED WE YRREE 75E0 S ObneI 504 cedeo CA 93422 4564717 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH FUEL FInING SIZE ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 1125 10. 250 00 SH616 2 FT PKG $135 5H-661 25 FT ROLL 51325 LARGE lG93 10. 215 00 5H-2901 FT PKGS 85 5146462 FT PKG51 15 514291 25 Fl ROLL 11295 MEDIUM 062 10156 00 514-2881 FT PKG$ 80 514-6452 FT PKG$110 514-28925 FT ROLL51155 Pay Fancy Colors * Heat-Proof melt resting directly hottest part running model engine Wont Harden Fuel Resistant cuts Tears~NOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 March 1987 43 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS$495 B/S TRIBUTED BY _____________________u WE ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 1/16233 3/32 240 1/8 243 3/16249 1/4 256 1/32337 1/20337 1/163374931 3/32 3445937 1/8 3547145 3/163625255 1/4 3739561 6/16365 3/8 38812471 1/2 3110155 3/4 3165 1/164507649 3/324709456 1/8 48010668 3/1649312275 1/4 411013464 3/8 4165225 1/2 4225261 MATCHED SHEETS 42 3/324100 /04108 3/164120 1/44131 BALSA STICKS 3645 1/16 1/409 1/16 3/810 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/210 1/8 1/808 1/8 1/411 1/8 3/612 18 1/210 3/163/1611 3/16 3/817 3/16 1/222 1/4 1/416 1/4 3/810 1/4 1/221 1/4 3/434 14 140 5/1 05/1621 3/853/827 38 1/232 3/8 3442 3/0 152 12 1/236 12 3446 1/2 156 5/8 5/040 3/4 3467 BALSA HOT LINE Call 15061 745-6394 10 am 6pm Cnntral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa LIGHT 4-6 LB BALSA TRIANGLES36 WOOD36 4 4 25132340 38 30 301/20349 35116340 34 34 45332354 551/6367 63/16376 8BALSAPLANIS361/4380 24 853/83115 6 01/23139 003/43220 301420013300 2411/232751/16470 2611/243603/32491 3422225184100 44233253/164117 244351/44138 2833405304207 37346881/24282 46 55TAPERED SHEETS36 1/42 65TRAILING EDGE36 53143 851/4132 023/02 485/1611/439 3/83 903/81 1246 1/2312012270 BASSWOOD48 3/163/1626 3/181/430 3/163/838 3/161/246 3/163454 1/41/442 143/849 143/480 3/83/660 3/81/270 3/83/400 121/290 1234100 BUNDLE DEALS 201/6336685 201/164361020 203/32 40 15332436955 151/8336715 101/8436875 153/16336900 10-316436810 101/4338830 101/4436090 103/8336854 53/8 436625 512336540 51/2434055 103/32448645 51/8448485 5316440585 51/4440025 PINE STICKS 36 48 10181317 18141623 18 3/82027 3163101724 316302332 316 / 23040 1/4142637 14363042 14123447 30303752 SPRUCE STICKS 36 48 1/0 1015 8 141024 1/0 302029 3/163162534 1/4 143145 14 383850 30 304563 3/8 125570 1/2 126080 12346088 SPRUCE TRIANGLES 38 3/8 1 2o 1/2 34 6 01 77 HARD MAPLE 1/4 38 3/83/0 3/8 1/2 3/8 3/4 123/4 BIRCH DOWELS 10 3/16 14 518 38 IS 40 45 54 58 60 36 00 11 14 25 32 3PLYBIRCH48 15412525 13212425 1/1612435 1012450 5PLYBIRCH45 33212570 1812585 31612585 1412600 LONE STAR EPOXYINSTANT CL UEGROG VEDLG MOUNTS 9,L5r0451 TSck298 5 rre5981 TO/c29812 InchS 15cr/c5982oaThck5541LITE PLY483/034/10/40 30 rrrr5982oa 15,5541/001503834/532/40 18123001234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO accept Via Master Cad personal checks COO 41/O/o ra,c Tea US carrer/Cy 0010 M/rrmcrrr Order 51000 6Am03 RC Scale/Wiscers Continued page 43 shelf paper establish outlines feature locations builder draws upon experience assemble structure using know ledge gained previous models kits published drawings Scratch-designing can funor can series frustrations subject airplane can appear ideal respect may have simple lines leads believe will easy build may prove illusion Are lines simple because three-view drawings lack necessary detail Its best have good stock supplemental photos hand before making final decision proceed can expect building time stretched because hours spent decision-making actual balsacutting Scratch-building published drawings cir cumvents letdowns having work out details construction Probably 90% scratch-builders follow route serves purpose providing different airplanes tired seeing same popular types always present local flying field simply because profusion kits sizes hand Looking real challenge Scale modeling Try building designing scratch enjoy rewards satisfaction creativity Exhaust systems past has helpful routing exhaust Out Scale models engine compartment through muffler use sili cone rubber tubing flexible connector certainly lot easier use hard aluminum tubing bent shape Aluminum tube always needed annealed repeatedly order make succesion bends circuitous route present-day revolution favor four-stroke engine finding silicone rubber tubing inadequate resistance higher exhaust temperature encountered well-ventilated cooling air outside cowl Silicone tube four-stroke engine exhaust system melts away allows exhaust scatter oil residue over engine compartment inefficient two-stroke engines pass un burned fuel through exhaust effectively cools silicone tube prevent melt-down happens due cooling through evaporation same fuel passing through four-stroke en gine completely consumed firing stroke main reason fourstrokes economical fuel usage Exhaust temperature unquestionably higher four-stroke engines us have come physical contact hot exhaust pipe can attest difference An accidental touch two-stroke exhaust pipe unpleasant experience same four-stroke leads welt blister Silicone tube can sometimes used fourstroke exhaust system seal crack between two metal pipes fit quite closely main conductor exhaust gases Having length steel spring inside silicone tube no help either some exhaust heat can dis sipated through muffler attached engine silicone tube muffler outlet may survive should checked bench before instal lation valuable Scale model Another point may lead problems tight-fitting Scale cowl situation metal pipe four-stroke engine rests directly against wooden structure wood will char APPLIED DESIGN CORPORATION 738 Penn SI El 8n~44n CA 90245 SANDER awUSTABLE TENSION HAND BELT SANDER FIRMLY HOLDS PAPER FOR EASIER SANDING Padded lIsts curves Handy Hnld Eany Un MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFins Garnel AND EFFORT $135SANDING BELTSAnulli Water Prnel TEE c BAR ALUMINUM EXTRUSION SANDING BLOCK ler nun RUFF-STUFF SeN-adhenive nand paper e True Surace WesIWurOal 11 Inch $253 .. Heady Un 22 inch $371 RUFF 6 STUFF SELF ADHESIVE SHEET SANOMPER MANE YOUR OWN SPECIAL SANDING SHAPES Na meuny glue er drying tIme MedlumFIneSuperFhie 893 MINIosAw $7 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw hen rugged die-cant frame cemlertahle chip-preel pteutlc innest handle Receding anne ad guslahIn B hlede Riven gnnd wnrh acceun Cuts wued pleutic metal HARDENED MUSIC WIREextra hlndes-3/$1RR Add 20% postage Send 25 catalog March 1987 129 1 44 I/NiaB1DaUk5w fl2FWiLwQdiwM IJI I1UAUTCVflIII IVVMIUEE~I IWe want take advantage JR Radios Kalt Helicopters Webra Engines RIC Cars Iand accessories prices special can offer direcy through new FREE publicaon HobbyIst issue will packed full FREE offers andI discounts wont believe few specials waing you.I FREE postage handling pre-pald orders FREE Circus Epoxy glue set Aircraft Combo FREE scale pilot figure wIth aircraft kit So youre hobbyist whos ready save moneyPpr~ say YES fill name address 2 l ad back us start receiving EE issues Hobbyist~ uzPI call toll free 18007820022 I want super values RIO equipment Name_______________________________________________ Address__________________________________________________I I_________________________ 3132 So Highland DrCity State Zip___________________________________________ -a Las Vegas Nevada 89109 Customer Service Call 1-702-732-0022 Far Orders call Toll Free 1-800-762-0022 J advertisement iood thai 1st issue month point contact depending upon length pipe measured engine long pipe some cooling before reaching wood may problem Provide clear ance around hot pipe especially near en gines exhaust port aware possibility fire Scale models too valuable lose through kind accident Spilled fuel may also ignite burning alcohol isnt visible daylight isnt possible see flame until wood structure ignites FAI rules Some interesting rules-change pro posals have come Switzerland England Swiss asking complexity bonus setup changed provide 5% bonus wingwarping control 5% braced multi-strutted biplanes 10% biplanes undercambered alifoil 15% three wings engine bonus would changed 10% two engines including ducted fans Landing gear bonus would 5% conventional twowheel gear 5% retracts monowbeel tricycle 10% retractable conventional two-wheel gear 10% bonus would awarded model airplane prototype flown previous 1911 realm radio equipment Swiss asking gyro devices prohibited also wish see attempt flight eliminated Oslo World Championship attempts called meaning contestant wished postpone flight until end round caused serious delays lengthened contest time An official flight would model airborne 60 seconds Judges could permit repeat flights model fails start reasons outside control com petitor organizer such radio interference sudden changes weather Swiss also asking change definition overshoot maneuver pres ent rule states performed three-meter altitude difficult measure would changed below three meters Mick Reeves England has also come up interesting proposals asks rule takeoff must possible wind rigidly enforced means organizers would have provide flying field runway direction asks made permissible move model after taxiing provide space realistic takeoff Minimum dimensions 30 meters runway width 100 meters runway length available both directions Mick also asks dropped items tanks bombs etc static judged also wants see high low scores five judges deleted Silencers should hidden view inside aircraft Presently permissible add muffler between static judging flight present rule requirement contestant provide prototypes cruising speed should changed maximum speed since cruising speed military aircraft unknown Mick prefers have model static judged four meters measured models center rather present measurement nearest part model thinks color K-factor static judging too high should reduced six three static realism score would introduced craftsmanship score would deleted present Scale Detail static score would creased K-factor 10 stipulation simple aircraft would receive fewer points complex models Mick also wishes see engine size limits abolished completely Static judging would done after first flight order Continued page 135 March 19871 31 CA MASK CA glue works wonders building models right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumeal soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPMl though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies Yes Im sick CA fumes Send CA mask Enclosed $1247 shipping NAME ADDRESS_______________________ CITY STATE___________ ZIP___________ Li VISA Li MASTER Exp Date________ ANNUAL RADIO CONTROL EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO APRIL 10 11 & 12 1987 presented Weak Signals RIO Club Toledo Ohio Exposition intormation avallaoie D contacting Wayne Yeager co-director ticket address shown below ADVANCED TICKETS may ordered sending self-addressed-stamped busi ness size 4 x 9 envelope Tickets 38235 Castle Romulus Michigan 48174 phone 313 941-6661 Canadian orders must contain International Postal Cou pon US Stamps orders above 5 tickets must contain extra postage Include check money order US funds made payable Weak Signals R/C Club along 25 cents per order handling charge must state expo days tickets used prices $400 per day adults $100 per day children 12 under Deadline ticket orders March 31 1987 Ticket sales final non 4,nAhI orders program will returned near mid-March Tickets also available door COMPETITION CLASS NON-MILITARY SPORT SCALE PLANE AMA Rules MILITARY SPORT SCALE PLANE AMA Rules PRECISION SCALE PLANE AMA Rules PATTERN PLANE SPORT MONO-PLANE non-scale models SPORT 81-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models COMPETITION BOAT MILITARY SCALE BOAT HELICOPTER PLEASURE POWER BOAT R/C CAR WORKING VESSEL-UNARMED NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made uSA AERO-PACER $8900 Sport-trainer Span 64 Weight 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 543/4 Weight 5-6 lbs Wing load 15 oz Engine 45-65 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Dealer inquiry invited AERODROME MODELS LTD 2623 5 Miller Rd Saginaw Ml 48603 517 781-3000 RC Scale/Wiscers Continued page 131 condense time requirements World Cham pionship 4/2 days proposals coming other nations well will come vote during FAIs ClAM plenary session April 1987 would appear will questions settled meeting possibly some recent ones certainly indi cates lively interest FAI matters have heard rumors some top Scale modelers US seriously considering entry FAt competition especially since weight limit about lobe raised seven kilograms 153 lb rules-proposals may actu ally reach rule book always interest see trends thinking modelers elsewhere modeling world Hobbypoxy colors Petit Paint Co makers Hobbypoxy have come up new formulations cover mixing colors European aircraft such Fairchild A- 10 Thunderbolt operating Europe camouflage scheme mottled green gray lizard pattern national insignia changed low-visibility black outline place red white blue formerly used formulas follow FS 34102 Light Greenfour parts H65 Bright Red three parts H49 Cub Yellow three parts H81 Black two parts H33 Stinson Green part H70 Gray part H 10 White FS 34092 Dark Greenfour parts H33 Stinson Green four parts H81 Black three parts H47 Bright Yellow two parts H70 Gray FS 36081 Dark Graysix parts H81 Black five parts H70 Gray part H47 Bright Yellow part H66 Dark Red mixtures should used HOS Flat Hardener Bob Dolly Wischer S-22J Lapham Peak Rd Delafleld WI 53018 RC Soaring/Blakeslee Continued page 45 cross-country enthusiasts will want sou venir booklet last years Great Race has three-views specifications 15 entries also has photos top placers including winning Pacific Soaring Association Team Larry Jolly Ken Findlay Sue Beatty Greg Ford flew LJMP Comet Larry Jim Jolly designed specifically cross-country racing Send $3 check money order Jim Mclntire 23546W Fern St Plainfield IL 60544 BOX 429SKYLAND N uoi IIII SS0 sar complete line * SCALE DOCUMENTATION * FEATURINGALH INGSPHOTOS REPLA-TECH 1g87 INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG S250 VIDA OREGON g7486 PAW DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tulahoma Tenn 37388 March 1 987 1 35 QUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Dealer inquiriescatalog SOC invited BLUE RIDGE MODELS. FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm sqs41RES 5279& Up F505lOfl ToOls 21OOM5dflM Rd Metals C4lVPIfL ~LS CG 00 catsIo SpilflgflbldOtdO 45505 5513-322-8562 DH6O GIPSY MOTH$10900
Edition: Model Aviation - 1987/03
Page Numbers: 42, 43, 129, 131, 135
Radio Control Scale Bob Dolly Wischer THE SCRATCH-BUILDERS Definitions what meant term true scratch-builder have considerable variation Most commonly build published drawings made other person designer small group prefers build own designs satisfy cre ative urge quest truly different airplane model An smaller number design build ultimate examples Scale model airplanes near perfection achieve national acclaim Only small portion worlds airplanes have modeled some obscure types among attractive Lack infor mation three-views photos general docu mentation can quickly sidetrack modelers de sire construct lesser-known aircraft Desire key element modeler really wants something entirely different will al ways find way pursue research selected prototype would rather dig out buried information build models tells us joint effort between researcher builder may worthwhile have heard argument no true scratch-builder because person didnt make own engine radio balsa paint covering material theme carried extreme claim scratch-builders would mining bauxite ore aluminum primitive handmade tools growing own balsa trees However sometimes hear modelers cutting balsa spruce lum beryard planks can expect mountain scrap sawdust general accepted definition scratchbuilder builds models structure raw materials including visible portions its exterior builder isnt expected manufacture own engine transistors models wheels usually thought exception basic concept now numerous modelers producing necessary item example see photo Robert Cooper flew Curtiss JN-4 Jenny Beaton VA June Scale contest hosted Howard County RC Club Model Solartex-covered weighs 8 lb uses 05 75 four-stroke power Its highly-detailed dummy OX-S engine R example scratch builders art rocker arms OS dont completely fit inside cowling can seen peeking through just above OX-S Typical scratch-builders high-quality models Jack Swifts Waco 10L 4-scale four-stroke Magnum 90 powers 6-ft 1 2-lb craft wing rib-stitching real simulatedl Doug Braddock scratch-built Sparmann P-i R Westburg drawings Landing gear has functional shock struts Power 05 90 two-stroke Cowl aluminum remainder Hobbypoxy over Coverite 42 Model Aviation Dee Harwell produced 612 cu copy Kinner B-5 radial engine using 05 16 heads valves Bore 1092 stroke 1312 Weight 1s8 lb Merritt Zimmerman demonstrates ex tremely slow idle speed scratch-built scale 3/2-horsepower Cirrus engine dis places 41/2 cu can transition full bore less 2 seconds uses wet sump lubrication oil pump Sopwith Camel last months column En gines also becoming part building skills elite group wish everything possible themselves engines have seen glorified dummies scale models full-size powerplants produce output comparable commercial units small group modelers go limit abilities create remarkable Scale aircraft unknown readers list includes Pat Massey TX Bob Nelitz Ontario Canada Steve Sauger MI Dick Speidel NY Merritt Zimmerman OH Earl Thompson CA Jim Funduk NC name just few fellows design own models invest necessary time effort research handiwork surfaces exposi tions rallies sometimes contests have common philosophy get much hobby needs extra effort input side Rarely designs published may have infinite patience producing masterpiece model come impatient begin new undertaking construction lines never drawn others may copy exceptions course Bob Nelitz has always made complete construc tion drawings available Most scratch-designers working drawings con sist very few pencil lines large sheet Continued page 129 RED WE YRREE 75E0 S ObneI 504 cedeo CA 93422 4564717 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH FUEL FInING SIZE ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 1125 10. 250 00 SH616 2 FT PKG $135 5H-661 25 FT ROLL 51325 LARGE lG93 10. 215 00 5H-2901 FT PKGS 85 5146462 FT PKG51 15 514291 25 Fl ROLL 11295 MEDIUM 062 10156 00 514-2881 FT PKG$ 80 514-6452 FT PKG$110 514-28925 FT ROLL51155 Pay Fancy Colors * Heat-Proof melt resting directly hottest part running model engine Wont Harden Fuel Resistant cuts Tears~NOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 March 1987 43 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS$495 B/S TRIBUTED BY _____________________u WE ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 1/16233 3/32 240 1/8 243 3/16249 1/4 256 1/32337 1/20337 1/163374931 3/32 3445937 1/8 3547145 3/163625255 1/4 3739561 6/16365 3/8 38812471 1/2 3110155 3/4 3165 1/164507649 3/324709456 1/8 48010668 3/1649312275 1/4 411013464 3/8 4165225 1/2 4225261 MATCHED SHEETS 42 3/324100 /04108 3/164120 1/44131 BALSA STICKS 3645 1/16 1/409 1/16 3/810 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/210 1/8 1/808 1/8 1/411 1/8 3/612 18 1/210 3/163/1611 3/16 3/817 3/16 1/222 1/4 1/416 1/4 3/810 1/4 1/221 1/4 3/434 14 140 5/1 05/1621 3/853/827 38 1/232 3/8 3442 3/0 152 12 1/236 12 3446 1/2 156 5/8 5/040 3/4 3467 BALSA HOT LINE Call 15061 745-6394 10 am 6pm Cnntral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa LIGHT 4-6 LB BALSA TRIANGLES36 WOOD36 4 4 25132340 38 30 301/20349 35116340 34 34 45332354 551/6367 63/16376 8BALSAPLANIS361/4380 24 853/83115 6 01/23139 003/43220 301420013300 2411/232751/16470 2611/243603/32491 3422225184100 44233253/164117 244351/44138 2833405304207 37346881/24282 46 55TAPERED SHEETS36 1/42 65TRAILING EDGE36 53143 851/4132 023/02 485/1611/439 3/83 903/81 1246 1/2312012270 BASSWOOD48 3/163/1626 3/181/430 3/163/838 3/161/246 3/163454 1/41/442 143/849 143/480 3/83/660 3/81/270 3/83/400 121/290 1234100 BUNDLE DEALS 201/6336685 201/164361020 203/32 40 15332436955 151/8336715 101/8436875 153/16336900 10-316436810 101/4338830 101/4436090 103/8336854 53/8 436625 512336540 51/2434055 103/32448645 51/8448485 5316440585 51/4440025 PINE STICKS 36 48 10181317 18141623 18 3/82027 3163101724 316302332 316 / 23040 1/4142637 14363042 14123447 30303752 SPRUCE STICKS 36 48 1/0 1015 8 141024 1/0 302029 3/163162534 1/4 143145 14 383850 30 304563 3/8 125570 1/2 126080 12346088 SPRUCE TRIANGLES 38 3/8 1 2o 1/2 34 6 01 77 HARD MAPLE 1/4 38 3/83/0 3/8 1/2 3/8 3/4 123/4 BIRCH DOWELS 10 3/16 14 518 38 IS 40 45 54 58 60 36 00 11 14 25 32 3PLYBIRCH48 15412525 13212425 1/1612435 1012450 5PLYBIRCH45 33212570 1812585 31612585 1412600 LONE STAR EPOXYINSTANT CL UEGROG VEDLG MOUNTS 9,L5r0451 TSck298 5 rre5981 TO/c29812 InchS 15cr/c5982oaThck5541LITE PLY483/034/10/40 30 rrrr5982oa 15,5541/001503834/532/40 18123001234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO accept Via Master Cad personal checks COO 41/O/o ra,c Tea US carrer/Cy 0010 M/rrmcrrr Order 51000 6Am03 RC Scale/Wiscers Continued page 43 shelf paper establish outlines feature locations builder draws upon experience assemble structure using know ledge gained previous models kits published drawings Scratch-designing can funor can series frustrations subject airplane can appear ideal respect may have simple lines leads believe will easy build may prove illusion Are lines simple because three-view drawings lack necessary detail Its best have good stock supplemental photos hand before making final decision proceed can expect building time stretched because hours spent decision-making actual balsacutting Scratch-building published drawings cir cumvents letdowns having work out details construction Probably 90% scratch-builders follow route serves purpose providing different airplanes tired seeing same popular types always present local flying field simply because profusion kits sizes hand Looking real challenge Scale modeling Try building designing scratch enjoy rewards satisfaction creativity Exhaust systems past has helpful routing exhaust Out Scale models engine compartment through muffler use sili cone rubber tubing flexible connector certainly lot easier use hard aluminum tubing bent shape Aluminum tube always needed annealed repeatedly order make succesion bends circuitous route present-day revolution favor four-stroke engine finding silicone rubber tubing inadequate resistance higher exhaust temperature encountered well-ventilated cooling air outside cowl Silicone tube four-stroke engine exhaust system melts away allows exhaust scatter oil residue over engine compartment inefficient two-stroke engines pass un burned fuel through exhaust effectively cools silicone tube prevent melt-down happens due cooling through evaporation same fuel passing through four-stroke en gine completely consumed firing stroke main reason fourstrokes economical fuel usage Exhaust temperature unquestionably higher four-stroke engines us have come physical contact hot exhaust pipe can attest difference An accidental touch two-stroke exhaust pipe unpleasant experience same four-stroke leads welt blister Silicone tube can sometimes used fourstroke exhaust system seal crack between two metal pipes fit quite closely main conductor exhaust gases Having length steel spring inside silicone tube no help either some exhaust heat can dis sipated through muffler attached engine silicone tube muffler outlet may survive should checked bench before instal lation valuable Scale model Another point may lead problems tight-fitting Scale cowl situation metal pipe four-stroke engine rests directly against wooden structure wood will char APPLIED DESIGN CORPORATION 738 Penn SI El 8n~44n CA 90245 SANDER awUSTABLE TENSION HAND BELT SANDER FIRMLY HOLDS PAPER FOR EASIER SANDING Padded lIsts curves Handy Hnld Eany Un MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFins Garnel AND EFFORT $135SANDING BELTSAnulli Water Prnel TEE c BAR ALUMINUM EXTRUSION SANDING BLOCK ler nun RUFF-STUFF SeN-adhenive nand paper e True Surace WesIWurOal 11 Inch $253 .. Heady Un 22 inch $371 RUFF 6 STUFF SELF ADHESIVE SHEET SANOMPER MANE YOUR OWN SPECIAL SANDING SHAPES Na meuny glue er drying tIme MedlumFIneSuperFhie 893 MINIosAw $7 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw hen rugged die-cant frame cemlertahle chip-preel pteutlc innest handle Receding anne ad guslahIn B hlede Riven gnnd wnrh acceun Cuts wued pleutic metal HARDENED MUSIC WIREextra hlndes-3/$1RR Add 20% postage Send 25 catalog March 1987 129 1 44 I/NiaB1DaUk5w fl2FWiLwQdiwM IJI I1UAUTCVflIII IVVMIUEE~I IWe want take advantage JR Radios Kalt Helicopters Webra Engines RIC Cars Iand accessories prices special can offer direcy through new FREE publicaon HobbyIst issue will packed full FREE offers andI discounts wont believe few specials waing you.I FREE postage handling pre-pald orders FREE Circus Epoxy glue set Aircraft Combo FREE scale pilot figure wIth aircraft kit So youre hobbyist whos ready save moneyPpr~ say YES fill name address 2 l ad back us start receiving EE issues Hobbyist~ uzPI call toll free 18007820022 I want super values RIO equipment Name_______________________________________________ Address__________________________________________________I I_________________________ 3132 So Highland DrCity State Zip___________________________________________ -a Las Vegas Nevada 89109 Customer Service Call 1-702-732-0022 Far Orders call Toll Free 1-800-762-0022 J advertisement iood thai 1st issue month point contact depending upon length pipe measured engine long pipe some cooling before reaching wood may problem Provide clear ance around hot pipe especially near en gines exhaust port aware possibility fire Scale models too valuable lose through kind accident Spilled fuel may also ignite burning alcohol isnt visible daylight isnt possible see flame until wood structure ignites FAI rules Some interesting rules-change pro posals have come Switzerland England Swiss asking complexity bonus setup changed provide 5% bonus wingwarping control 5% braced multi-strutted biplanes 10% biplanes undercambered alifoil 15% three wings engine bonus would changed 10% two engines including ducted fans Landing gear bonus would 5% conventional twowheel gear 5% retracts monowbeel tricycle 10% retractable conventional two-wheel gear 10% bonus would awarded model airplane prototype flown previous 1911 realm radio equipment Swiss asking gyro devices prohibited also wish see attempt flight eliminated Oslo World Championship attempts called meaning contestant wished postpone flight until end round caused serious delays lengthened contest time An official flight would model airborne 60 seconds Judges could permit repeat flights model fails start reasons outside control com petitor organizer such radio interference sudden changes weather Swiss also asking change definition overshoot maneuver pres ent rule states performed three-meter altitude difficult measure would changed below three meters Mick Reeves England has also come up interesting proposals asks rule takeoff must possible wind rigidly enforced means organizers would have provide flying field runway direction asks made permissible move model after taxiing provide space realistic takeoff Minimum dimensions 30 meters runway width 100 meters runway length available both directions Mick also asks dropped items tanks bombs etc static judged also wants see high low scores five judges deleted Silencers should hidden view inside aircraft Presently permissible add muffler between static judging flight present rule requirement contestant provide prototypes cruising speed should changed maximum speed since cruising speed military aircraft unknown Mick prefers have model static judged four meters measured models center rather present measurement nearest part model thinks color K-factor static judging too high should reduced six three static realism score would introduced craftsmanship score would deleted present Scale Detail static score would creased K-factor 10 stipulation simple aircraft would receive fewer points complex models Mick also wishes see engine size limits abolished completely Static judging would done after first flight order Continued page 135 March 19871 31 CA MASK CA glue works wonders building models right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumeal soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPMl though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies Yes Im sick CA fumes Send CA mask Enclosed $1247 shipping NAME ADDRESS_______________________ CITY STATE___________ ZIP___________ Li VISA Li MASTER Exp Date________ ANNUAL RADIO CONTROL EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO APRIL 10 11 & 12 1987 presented Weak Signals RIO Club Toledo Ohio Exposition intormation avallaoie D contacting Wayne Yeager co-director ticket address shown below ADVANCED TICKETS may ordered sending self-addressed-stamped busi ness size 4 x 9 envelope Tickets 38235 Castle Romulus Michigan 48174 phone 313 941-6661 Canadian orders must contain International Postal Cou pon US Stamps orders above 5 tickets must contain extra postage Include check money order US funds made payable Weak Signals R/C Club along 25 cents per order handling charge must state expo days tickets used prices $400 per day adults $100 per day children 12 under Deadline ticket orders March 31 1987 Ticket sales final non 4,nAhI orders program will returned near mid-March Tickets also available door COMPETITION CLASS NON-MILITARY SPORT SCALE PLANE AMA Rules MILITARY SPORT SCALE PLANE AMA Rules PRECISION SCALE PLANE AMA Rules PATTERN PLANE SPORT MONO-PLANE non-scale models SPORT 81-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models COMPETITION BOAT MILITARY SCALE BOAT HELICOPTER PLEASURE POWER BOAT R/C CAR WORKING VESSEL-UNARMED NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made uSA AERO-PACER $8900 Sport-trainer Span 64 Weight 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 543/4 Weight 5-6 lbs Wing load 15 oz Engine 45-65 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Dealer inquiry invited AERODROME MODELS LTD 2623 5 Miller Rd Saginaw Ml 48603 517 781-3000 RC Scale/Wiscers Continued page 131 condense time requirements World Cham pionship 4/2 days proposals coming other nations well will come vote during FAIs ClAM plenary session April 1987 would appear will questions settled meeting possibly some recent ones certainly indi cates lively interest FAI matters have heard rumors some top Scale modelers US seriously considering entry FAt competition especially since weight limit about lobe raised seven kilograms 153 lb rules-proposals may actu ally reach rule book always interest see trends thinking modelers elsewhere modeling world Hobbypoxy colors Petit Paint Co makers Hobbypoxy have come up new formulations cover mixing colors European aircraft such Fairchild A- 10 Thunderbolt operating Europe camouflage scheme mottled green gray lizard pattern national insignia changed low-visibility black outline place red white blue formerly used formulas follow FS 34102 Light Greenfour parts H65 Bright Red three parts H49 Cub Yellow three parts H81 Black two parts H33 Stinson Green part H70 Gray part H 10 White FS 34092 Dark Greenfour parts H33 Stinson Green four parts H81 Black three parts H47 Bright Yellow two parts H70 Gray FS 36081 Dark Graysix parts H81 Black five parts H70 Gray part H47 Bright Yellow part H66 Dark Red mixtures should used HOS Flat Hardener Bob Dolly Wischer S-22J Lapham Peak Rd Delafleld WI 53018 RC Soaring/Blakeslee Continued page 45 cross-country enthusiasts will want sou venir booklet last years Great Race has three-views specifications 15 entries also has photos top placers including winning Pacific Soaring Association Team Larry Jolly Ken Findlay Sue Beatty Greg Ford flew LJMP Comet Larry Jim Jolly designed specifically cross-country racing Send $3 check money order Jim Mclntire 23546W Fern St Plainfield IL 60544 BOX 429SKYLAND N uoi IIII SS0 sar complete line * SCALE DOCUMENTATION * FEATURINGALH INGSPHOTOS REPLA-TECH 1g87 INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG S250 VIDA OREGON g7486 PAW DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tulahoma Tenn 37388 March 1 987 1 35 QUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Dealer inquiriescatalog SOC invited BLUE RIDGE MODELS. FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm sqs41RES 5279& Up F505lOfl ToOls 21OOM5dflM Rd Metals C4lVPIfL ~LS CG 00 catsIo SpilflgflbldOtdO 45505 5513-322-8562 DH6O GIPSY MOTH$10900
Edition: Model Aviation - 1987/03
Page Numbers: 42, 43, 129, 131, 135
Radio Control Scale Bob Dolly Wischer THE SCRATCH-BUILDERS Definitions what meant term true scratch-builder have considerable variation Most commonly build published drawings made other person designer small group prefers build own designs satisfy cre ative urge quest truly different airplane model An smaller number design build ultimate examples Scale model airplanes near perfection achieve national acclaim Only small portion worlds airplanes have modeled some obscure types among attractive Lack infor mation three-views photos general docu mentation can quickly sidetrack modelers de sire construct lesser-known aircraft Desire key element modeler really wants something entirely different will al ways find way pursue research selected prototype would rather dig out buried information build models tells us joint effort between researcher builder may worthwhile have heard argument no true scratch-builder because person didnt make own engine radio balsa paint covering material theme carried extreme claim scratch-builders would mining bauxite ore aluminum primitive handmade tools growing own balsa trees However sometimes hear modelers cutting balsa spruce lum beryard planks can expect mountain scrap sawdust general accepted definition scratchbuilder builds models structure raw materials including visible portions its exterior builder isnt expected manufacture own engine transistors models wheels usually thought exception basic concept now numerous modelers producing necessary item example see photo Robert Cooper flew Curtiss JN-4 Jenny Beaton VA June Scale contest hosted Howard County RC Club Model Solartex-covered weighs 8 lb uses 05 75 four-stroke power Its highly-detailed dummy OX-S engine R example scratch builders art rocker arms OS dont completely fit inside cowling can seen peeking through just above OX-S Typical scratch-builders high-quality models Jack Swifts Waco 10L 4-scale four-stroke Magnum 90 powers 6-ft 1 2-lb craft wing rib-stitching real simulatedl Doug Braddock scratch-built Sparmann P-i R Westburg drawings Landing gear has functional shock struts Power 05 90 two-stroke Cowl aluminum remainder Hobbypoxy over Coverite 42 Model Aviation Dee Harwell produced 612 cu copy Kinner B-5 radial engine using 05 16 heads valves Bore 1092 stroke 1312 Weight 1s8 lb Merritt Zimmerman demonstrates ex tremely slow idle speed scratch-built scale 3/2-horsepower Cirrus engine dis places 41/2 cu can transition full bore less 2 seconds uses wet sump lubrication oil pump Sopwith Camel last months column En gines also becoming part building skills elite group wish everything possible themselves engines have seen glorified dummies scale models full-size powerplants produce output comparable commercial units small group modelers go limit abilities create remarkable Scale aircraft unknown readers list includes Pat Massey TX Bob Nelitz Ontario Canada Steve Sauger MI Dick Speidel NY Merritt Zimmerman OH Earl Thompson CA Jim Funduk NC name just few fellows design own models invest necessary time effort research handiwork surfaces exposi tions rallies sometimes contests have common philosophy get much hobby needs extra effort input side Rarely designs published may have infinite patience producing masterpiece model come impatient begin new undertaking construction lines never drawn others may copy exceptions course Bob Nelitz has always made complete construc tion drawings available Most scratch-designers working drawings con sist very few pencil lines large sheet Continued page 129 RED WE YRREE 75E0 S ObneI 504 cedeo CA 93422 4564717 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH FUEL FInING SIZE ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 1125 10. 250 00 SH616 2 FT PKG $135 5H-661 25 FT ROLL 51325 LARGE lG93 10. 215 00 5H-2901 FT PKGS 85 5146462 FT PKG51 15 514291 25 Fl ROLL 11295 MEDIUM 062 10156 00 514-2881 FT PKG$ 80 514-6452 FT PKG$110 514-28925 FT ROLL51155 Pay Fancy Colors * Heat-Proof melt resting directly hottest part running model engine Wont Harden Fuel Resistant cuts Tears~NOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 March 1987 43 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS$495 B/S TRIBUTED BY _____________________u WE ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 1/16233 3/32 240 1/8 243 3/16249 1/4 256 1/32337 1/20337 1/163374931 3/32 3445937 1/8 3547145 3/163625255 1/4 3739561 6/16365 3/8 38812471 1/2 3110155 3/4 3165 1/164507649 3/324709456 1/8 48010668 3/1649312275 1/4 411013464 3/8 4165225 1/2 4225261 MATCHED SHEETS 42 3/324100 /04108 3/164120 1/44131 BALSA STICKS 3645 1/16 1/409 1/16 3/810 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/210 1/8 1/808 1/8 1/411 1/8 3/612 18 1/210 3/163/1611 3/16 3/817 3/16 1/222 1/4 1/416 1/4 3/810 1/4 1/221 1/4 3/434 14 140 5/1 05/1621 3/853/827 38 1/232 3/8 3442 3/0 152 12 1/236 12 3446 1/2 156 5/8 5/040 3/4 3467 BALSA HOT LINE Call 15061 745-6394 10 am 6pm Cnntral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa LIGHT 4-6 LB BALSA TRIANGLES36 WOOD36 4 4 25132340 38 30 301/20349 35116340 34 34 45332354 551/6367 63/16376 8BALSAPLANIS361/4380 24 853/83115 6 01/23139 003/43220 301420013300 2411/232751/16470 2611/243603/32491 3422225184100 44233253/164117 244351/44138 2833405304207 37346881/24282 46 55TAPERED SHEETS36 1/42 65TRAILING EDGE36 53143 851/4132 023/02 485/1611/439 3/83 903/81 1246 1/2312012270 BASSWOOD48 3/163/1626 3/181/430 3/163/838 3/161/246 3/163454 1/41/442 143/849 143/480 3/83/660 3/81/270 3/83/400 121/290 1234100 BUNDLE DEALS 201/6336685 201/164361020 203/32 40 15332436955 151/8336715 101/8436875 153/16336900 10-316436810 101/4338830 101/4436090 103/8336854 53/8 436625 512336540 51/2434055 103/32448645 51/8448485 5316440585 51/4440025 PINE STICKS 36 48 10181317 18141623 18 3/82027 3163101724 316302332 316 / 23040 1/4142637 14363042 14123447 30303752 SPRUCE STICKS 36 48 1/0 1015 8 141024 1/0 302029 3/163162534 1/4 143145 14 383850 30 304563 3/8 125570 1/2 126080 12346088 SPRUCE TRIANGLES 38 3/8 1 2o 1/2 34 6 01 77 HARD MAPLE 1/4 38 3/83/0 3/8 1/2 3/8 3/4 123/4 BIRCH DOWELS 10 3/16 14 518 38 IS 40 45 54 58 60 36 00 11 14 25 32 3PLYBIRCH48 15412525 13212425 1/1612435 1012450 5PLYBIRCH45 33212570 1812585 31612585 1412600 LONE STAR EPOXYINSTANT CL UEGROG VEDLG MOUNTS 9,L5r0451 TSck298 5 rre5981 TO/c29812 InchS 15cr/c5982oaThck5541LITE PLY483/034/10/40 30 rrrr5982oa 15,5541/001503834/532/40 18123001234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO accept Via Master Cad personal checks COO 41/O/o ra,c Tea US carrer/Cy 0010 M/rrmcrrr Order 51000 6Am03 RC Scale/Wiscers Continued page 43 shelf paper establish outlines feature locations builder draws upon experience assemble structure using know ledge gained previous models kits published drawings Scratch-designing can funor can series frustrations subject airplane can appear ideal respect may have simple lines leads believe will easy build may prove illusion Are lines simple because three-view drawings lack necessary detail Its best have good stock supplemental photos hand before making final decision proceed can expect building time stretched because hours spent decision-making actual balsacutting Scratch-building published drawings cir cumvents letdowns having work out details construction Probably 90% scratch-builders follow route serves purpose providing different airplanes tired seeing same popular types always present local flying field simply because profusion kits sizes hand Looking real challenge Scale modeling Try building designing scratch enjoy rewards satisfaction creativity Exhaust systems past has helpful routing exhaust Out Scale models engine compartment through muffler use sili cone rubber tubing flexible connector certainly lot easier use hard aluminum tubing bent shape Aluminum tube always needed annealed repeatedly order make succesion bends circuitous route present-day revolution favor four-stroke engine finding silicone rubber tubing inadequate resistance higher exhaust temperature encountered well-ventilated cooling air outside cowl Silicone tube four-stroke engine exhaust system melts away allows exhaust scatter oil residue over engine compartment inefficient two-stroke engines pass un burned fuel through exhaust effectively cools silicone tube prevent melt-down happens due cooling through evaporation same fuel passing through four-stroke en gine completely consumed firing stroke main reason fourstrokes economical fuel usage Exhaust temperature unquestionably higher four-stroke engines us have come physical contact hot exhaust pipe can attest difference An accidental touch two-stroke exhaust pipe unpleasant experience same four-stroke leads welt blister Silicone tube can sometimes used fourstroke exhaust system seal crack between two metal pipes fit quite closely main conductor exhaust gases Having length steel spring inside silicone tube no help either some exhaust heat can dis sipated through muffler attached engine silicone tube muffler outlet may survive should checked bench before instal lation valuable Scale model Another point may lead problems tight-fitting Scale cowl situation metal pipe four-stroke engine rests directly against wooden structure wood will char APPLIED DESIGN CORPORATION 738 Penn SI El 8n~44n CA 90245 SANDER awUSTABLE TENSION HAND BELT SANDER FIRMLY HOLDS PAPER FOR EASIER SANDING Padded lIsts curves Handy Hnld Eany Un MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFins Garnel AND EFFORT $135SANDING BELTSAnulli Water Prnel TEE c BAR ALUMINUM EXTRUSION SANDING BLOCK ler nun RUFF-STUFF SeN-adhenive nand paper e True Surace WesIWurOal 11 Inch $253 .. Heady Un 22 inch $371 RUFF 6 STUFF SELF ADHESIVE SHEET SANOMPER MANE YOUR OWN SPECIAL SANDING SHAPES Na meuny glue er drying tIme MedlumFIneSuperFhie 893 MINIosAw $7 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw hen rugged die-cant frame cemlertahle chip-preel pteutlc innest handle Receding anne ad guslahIn B hlede Riven gnnd wnrh acceun Cuts wued pleutic metal HARDENED MUSIC WIREextra hlndes-3/$1RR Add 20% postage Send 25 catalog March 1987 129 1 44 I/NiaB1DaUk5w fl2FWiLwQdiwM IJI I1UAUTCVflIII IVVMIUEE~I IWe want take advantage JR Radios Kalt Helicopters Webra Engines RIC Cars Iand accessories prices special can offer direcy through new FREE publicaon HobbyIst issue will packed full FREE offers andI discounts wont believe few specials waing you.I FREE postage handling pre-pald orders FREE Circus Epoxy glue set Aircraft Combo FREE scale pilot figure wIth aircraft kit So youre hobbyist whos ready save moneyPpr~ say YES fill name address 2 l ad back us start receiving EE issues Hobbyist~ uzPI call toll free 18007820022 I want super values RIO equipment Name_______________________________________________ Address__________________________________________________I I_________________________ 3132 So Highland DrCity State Zip___________________________________________ -a Las Vegas Nevada 89109 Customer Service Call 1-702-732-0022 Far Orders call Toll Free 1-800-762-0022 J advertisement iood thai 1st issue month point contact depending upon length pipe measured engine long pipe some cooling before reaching wood may problem Provide clear ance around hot pipe especially near en gines exhaust port aware possibility fire Scale models too valuable lose through kind accident Spilled fuel may also ignite burning alcohol isnt visible daylight isnt possible see flame until wood structure ignites FAI rules Some interesting rules-change pro posals have come Switzerland England Swiss asking complexity bonus setup changed provide 5% bonus wingwarping control 5% braced multi-strutted biplanes 10% biplanes undercambered alifoil 15% three wings engine bonus would changed 10% two engines including ducted fans Landing gear bonus would 5% conventional twowheel gear 5% retracts monowbeel tricycle 10% retractable conventional two-wheel gear 10% bonus would awarded model airplane prototype flown previous 1911 realm radio equipment Swiss asking gyro devices prohibited also wish see attempt flight eliminated Oslo World Championship attempts called meaning contestant wished postpone flight until end round caused serious delays lengthened contest time An official flight would model airborne 60 seconds Judges could permit repeat flights model fails start reasons outside control com petitor organizer such radio interference sudden changes weather Swiss also asking change definition overshoot maneuver pres ent rule states performed three-meter altitude difficult measure would changed below three meters Mick Reeves England has also come up interesting proposals asks rule takeoff must possible wind rigidly enforced means organizers would have provide flying field runway direction asks made permissible move model after taxiing provide space realistic takeoff Minimum dimensions 30 meters runway width 100 meters runway length available both directions Mick also asks dropped items tanks bombs etc static judged also wants see high low scores five judges deleted Silencers should hidden view inside aircraft Presently permissible add muffler between static judging flight present rule requirement contestant provide prototypes cruising speed should changed maximum speed since cruising speed military aircraft unknown Mick prefers have model static judged four meters measured models center rather present measurement nearest part model thinks color K-factor static judging too high should reduced six three static realism score would introduced craftsmanship score would deleted present Scale Detail static score would creased K-factor 10 stipulation simple aircraft would receive fewer points complex models Mick also wishes see engine size limits abolished completely Static judging would done after first flight order Continued page 135 March 19871 31 CA MASK CA glue works wonders building models right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumeal soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPMl though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies Yes Im sick CA fumes Send CA mask Enclosed $1247 shipping NAME ADDRESS_______________________ CITY STATE___________ ZIP___________ Li VISA Li MASTER Exp Date________ ANNUAL RADIO CONTROL EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO APRIL 10 11 & 12 1987 presented Weak Signals RIO Club Toledo Ohio Exposition intormation avallaoie D contacting Wayne Yeager co-director ticket address shown below ADVANCED TICKETS may ordered sending self-addressed-stamped busi ness size 4 x 9 envelope Tickets 38235 Castle Romulus Michigan 48174 phone 313 941-6661 Canadian orders must contain International Postal Cou pon US Stamps orders above 5 tickets must contain extra postage Include check money order US funds made payable Weak Signals R/C Club along 25 cents per order handling charge must state expo days tickets used prices $400 per day adults $100 per day children 12 under Deadline ticket orders March 31 1987 Ticket sales final non 4,nAhI orders program will returned near mid-March Tickets also available door COMPETITION CLASS NON-MILITARY SPORT SCALE PLANE AMA Rules MILITARY SPORT SCALE PLANE AMA Rules PRECISION SCALE PLANE AMA Rules PATTERN PLANE SPORT MONO-PLANE non-scale models SPORT 81-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models COMPETITION BOAT MILITARY SCALE BOAT HELICOPTER PLEASURE POWER BOAT R/C CAR WORKING VESSEL-UNARMED NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made uSA AERO-PACER $8900 Sport-trainer Span 64 Weight 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 543/4 Weight 5-6 lbs Wing load 15 oz Engine 45-65 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Dealer inquiry invited AERODROME MODELS LTD 2623 5 Miller Rd Saginaw Ml 48603 517 781-3000 RC Scale/Wiscers Continued page 131 condense time requirements World Cham pionship 4/2 days proposals coming other nations well will come vote during FAIs ClAM plenary session April 1987 would appear will questions settled meeting possibly some recent ones certainly indi cates lively interest FAI matters have heard rumors some top Scale modelers US seriously considering entry FAt competition especially since weight limit about lobe raised seven kilograms 153 lb rules-proposals may actu ally reach rule book always interest see trends thinking modelers elsewhere modeling world Hobbypoxy colors Petit Paint Co makers Hobbypoxy have come up new formulations cover mixing colors European aircraft such Fairchild A- 10 Thunderbolt operating Europe camouflage scheme mottled green gray lizard pattern national insignia changed low-visibility black outline place red white blue formerly used formulas follow FS 34102 Light Greenfour parts H65 Bright Red three parts H49 Cub Yellow three parts H81 Black two parts H33 Stinson Green part H70 Gray part H 10 White FS 34092 Dark Greenfour parts H33 Stinson Green four parts H81 Black three parts H47 Bright Yellow two parts H70 Gray FS 36081 Dark Graysix parts H81 Black five parts H70 Gray part H47 Bright Yellow part H66 Dark Red mixtures should used HOS Flat Hardener Bob Dolly Wischer S-22J Lapham Peak Rd Delafleld WI 53018 RC Soaring/Blakeslee Continued page 45 cross-country enthusiasts will want sou venir booklet last years Great Race has three-views specifications 15 entries also has photos top placers including winning Pacific Soaring Association Team Larry Jolly Ken Findlay Sue Beatty Greg Ford flew LJMP Comet Larry Jim Jolly designed specifically cross-country racing Send $3 check money order Jim Mclntire 23546W Fern St Plainfield IL 60544 BOX 429SKYLAND N uoi IIII SS0 sar complete line * SCALE DOCUMENTATION * FEATURINGALH INGSPHOTOS REPLA-TECH 1g87 INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG S250 VIDA OREGON g7486 PAW DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tulahoma Tenn 37388 March 1 987 1 35 QUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Dealer inquiriescatalog SOC invited BLUE RIDGE MODELS. FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm sqs41RES 5279& Up F505lOfl ToOls 21OOM5dflM Rd Metals C4lVPIfL ~LS CG 00 catsIo SpilflgflbldOtdO 45505 5513-322-8562 DH6O GIPSY MOTH$10900
Edition: Model Aviation - 1987/03
Page Numbers: 42, 43, 129, 131, 135
Radio Control Scale Bob Dolly Wischer THE SCRATCH-BUILDERS Definitions what meant term true scratch-builder have considerable variation Most commonly build published drawings made other person designer small group prefers build own designs satisfy cre ative urge quest truly different airplane model An smaller number design build ultimate examples Scale model airplanes near perfection achieve national acclaim Only small portion worlds airplanes have modeled some obscure types among attractive Lack infor mation three-views photos general docu mentation can quickly sidetrack modelers de sire construct lesser-known aircraft Desire key element modeler really wants something entirely different will al ways find way pursue research selected prototype would rather dig out buried information build models tells us joint effort between researcher builder may worthwhile have heard argument no true scratch-builder because person didnt make own engine radio balsa paint covering material theme carried extreme claim scratch-builders would mining bauxite ore aluminum primitive handmade tools growing own balsa trees However sometimes hear modelers cutting balsa spruce lum beryard planks can expect mountain scrap sawdust general accepted definition scratchbuilder builds models structure raw materials including visible portions its exterior builder isnt expected manufacture own engine transistors models wheels usually thought exception basic concept now numerous modelers producing necessary item example see photo Robert Cooper flew Curtiss JN-4 Jenny Beaton VA June Scale contest hosted Howard County RC Club Model Solartex-covered weighs 8 lb uses 05 75 four-stroke power Its highly-detailed dummy OX-S engine R example scratch builders art rocker arms OS dont completely fit inside cowling can seen peeking through just above OX-S Typical scratch-builders high-quality models Jack Swifts Waco 10L 4-scale four-stroke Magnum 90 powers 6-ft 1 2-lb craft wing rib-stitching real simulatedl Doug Braddock scratch-built Sparmann P-i R Westburg drawings Landing gear has functional shock struts Power 05 90 two-stroke Cowl aluminum remainder Hobbypoxy over Coverite 42 Model Aviation Dee Harwell produced 612 cu copy Kinner B-5 radial engine using 05 16 heads valves Bore 1092 stroke 1312 Weight 1s8 lb Merritt Zimmerman demonstrates ex tremely slow idle speed scratch-built scale 3/2-horsepower Cirrus engine dis places 41/2 cu can transition full bore less 2 seconds uses wet sump lubrication oil pump Sopwith Camel last months column En gines also becoming part building skills elite group wish everything possible themselves engines have seen glorified dummies scale models full-size powerplants produce output comparable commercial units small group modelers go limit abilities create remarkable Scale aircraft unknown readers list includes Pat Massey TX Bob Nelitz Ontario Canada Steve Sauger MI Dick Speidel NY Merritt Zimmerman OH Earl Thompson CA Jim Funduk NC name just few fellows design own models invest necessary time effort research handiwork surfaces exposi tions rallies sometimes contests have common philosophy get much hobby needs extra effort input side Rarely designs published may have infinite patience producing masterpiece model come impatient begin new undertaking construction lines never drawn others may copy exceptions course Bob Nelitz has always made complete construc tion drawings available Most scratch-designers working drawings con sist very few pencil lines large sheet Continued page 129 RED WE YRREE 75E0 S ObneI 504 cedeo CA 93422 4564717 Bought Colored Fuel Line YOU DEFINITELY PAID TOO MUCH FUEL FInING SIZE ON ENGINE DETERMINES REQUIRED TUBING DIAMETER EXTRA LARGE 1125 10. 250 00 SH616 2 FT PKG $135 5H-661 25 FT ROLL 51325 LARGE lG93 10. 215 00 5H-2901 FT PKGS 85 5146462 FT PKG51 15 514291 25 Fl ROLL 11295 MEDIUM 062 10156 00 514-2881 FT PKG$ 80 514-6452 FT PKG$110 514-28925 FT ROLL51155 Pay Fancy Colors * Heat-Proof melt resting directly hottest part running model engine Wont Harden Fuel Resistant cuts Tears~NOT FOR GASOLINE Sig first introduce silicone fuel line tubing model aviation market way back 1964 premium tubing still comes its original natural white color Some competitors would have believe ad ding blue red yellow dye tubing charging higher price makes product better dont believe Sigs original silicone fuel tubing has important characteristics need quality fuel line None Better Any Price OR COLOR See dealer first available order direct call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO INCMontezuma IA 50171 March 1987 43 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS$495 B/S TRIBUTED BY _____________________u WE ARE SHOOTING DOWN HIGH BALSA PRICES WITH SUPER QUALITY Satisfaction Guaranteed Direct Only BALSA SHEETS 36 1/16233 3/32 240 1/8 243 3/16249 1/4 256 1/32337 1/20337 1/163374931 3/32 3445937 1/8 3547145 3/163625255 1/4 3739561 6/16365 3/8 38812471 1/2 3110155 3/4 3165 1/164507649 3/324709456 1/8 48010668 3/1649312275 1/4 411013464 3/8 4165225 1/2 4225261 MATCHED SHEETS 42 3/324100 /04108 3/164120 1/44131 BALSA STICKS 3645 1/16 1/409 1/16 3/810 1/16 1/214 3/32 1/410 3/32 3/812 3/32 1/210 1/8 1/808 1/8 1/411 1/8 3/612 18 1/210 3/163/1611 3/16 3/817 3/16 1/222 1/4 1/416 1/4 3/810 1/4 1/221 1/4 3/434 14 140 5/1 05/1621 3/853/827 38 1/232 3/8 3442 3/0 152 12 1/236 12 3446 1/2 156 5/8 5/040 3/4 3467 BALSA HOT LINE Call 15061 745-6394 10 am 6pm Cnntral Time LONE STAR MODELS 1623 57th St Lubbock TX 79412 CUSTOM CUT CONTEST BALSA Sheets Piece ed Close Tolerances AAA Grade Dried ped 100% a serious modeler want performance must try 4-6 lb balsa LIGHT 4-6 LB BALSA TRIANGLES36 WOOD36 4 4 25132340 38 30 301/20349 35116340 34 34 45332354 551/6367 63/16376 8BALSAPLANIS361/4380 24 853/83115 6 01/23139 003/43220 301420013300 2411/232751/16470 2611/243603/32491 3422225184100 44233253/164117 244351/44138 2833405304207 37346881/24282 46 55TAPERED SHEETS36 1/42 65TRAILING EDGE36 53143 851/4132 023/02 485/1611/439 3/83 903/81 1246 1/2312012270 BASSWOOD48 3/163/1626 3/181/430 3/163/838 3/161/246 3/163454 1/41/442 143/849 143/480 3/83/660 3/81/270 3/83/400 121/290 1234100 BUNDLE DEALS 201/6336685 201/164361020 203/32 40 15332436955 151/8336715 101/8436875 153/16336900 10-316436810 101/4338830 101/4436090 103/8336854 53/8 436625 512336540 51/2434055 103/32448645 51/8448485 5316440585 51/4440025 PINE STICKS 36 48 10181317 18141623 18 3/82027 3163101724 316302332 316 / 23040 1/4142637 14363042 14123447 30303752 SPRUCE STICKS 36 48 1/0 1015 8 141024 1/0 302029 3/163162534 1/4 143145 14 383850 30 304563 3/8 125570 1/2 126080 12346088 SPRUCE TRIANGLES 38 3/8 1 2o 1/2 34 6 01 77 HARD MAPLE 1/4 38 3/83/0 3/8 1/2 3/8 3/4 123/4 BIRCH DOWELS 10 3/16 14 518 38 IS 40 45 54 58 60 36 00 11 14 25 32 3PLYBIRCH48 15412525 13212425 1/1612435 1012450 5PLYBIRCH45 33212570 1812585 31612585 1412600 LONE STAR EPOXYINSTANT CL UEGROG VEDLG MOUNTS 9,L5r0451 TSck298 5 rre5981 TO/c29812 InchS 15cr/c5982oaThck5541LITE PLY483/034/10/40 30 rrrr5982oa 15,5541/001503834/532/40 18123001234/3/16/45 Handling Charge$300 pay UPS Add $200 COD $300 extra PP APO FPO accept Via Master Cad personal checks COO 41/O/o ra,c Tea US carrer/Cy 0010 M/rrmcrrr Order 51000 6Am03 RC Scale/Wiscers Continued page 43 shelf paper establish outlines feature locations builder draws upon experience assemble structure using know ledge gained previous models kits published drawings Scratch-designing can funor can series frustrations subject airplane can appear ideal respect may have simple lines leads believe will easy build may prove illusion Are lines simple because three-view drawings lack necessary detail Its best have good stock supplemental photos hand before making final decision proceed can expect building time stretched because hours spent decision-making actual balsacutting Scratch-building published drawings cir cumvents letdowns having work out details construction Probably 90% scratch-builders follow route serves purpose providing different airplanes tired seeing same popular types always present local flying field simply because profusion kits sizes hand Looking real challenge Scale modeling Try building designing scratch enjoy rewards satisfaction creativity Exhaust systems past has helpful routing exhaust Out Scale models engine compartment through muffler use sili cone rubber tubing flexible connector certainly lot easier use hard aluminum tubing bent shape Aluminum tube always needed annealed repeatedly order make succesion bends circuitous route present-day revolution favor four-stroke engine finding silicone rubber tubing inadequate resistance higher exhaust temperature encountered well-ventilated cooling air outside cowl Silicone tube four-stroke engine exhaust system melts away allows exhaust scatter oil residue over engine compartment inefficient two-stroke engines pass un burned fuel through exhaust effectively cools silicone tube prevent melt-down happens due cooling through evaporation same fuel passing through four-stroke en gine completely consumed firing stroke main reason fourstrokes economical fuel usage Exhaust temperature unquestionably higher four-stroke engines us have come physical contact hot exhaust pipe can attest difference An accidental touch two-stroke exhaust pipe unpleasant experience same four-stroke leads welt blister Silicone tube can sometimes used fourstroke exhaust system seal crack between two metal pipes fit quite closely main conductor exhaust gases Having length steel spring inside silicone tube no help either some exhaust heat can dis sipated through muffler attached engine silicone tube muffler outlet may survive should checked bench before instal lation valuable Scale model Another point may lead problems tight-fitting Scale cowl situation metal pipe four-stroke engine rests directly against wooden structure wood will char APPLIED DESIGN CORPORATION 738 Penn SI El 8n~44n CA 90245 SANDER awUSTABLE TENSION HAND BELT SANDER FIRMLY HOLDS PAPER FOR EASIER SANDING Padded lIsts curves Handy Hnld Eany Un MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFins Garnel AND EFFORT $135SANDING BELTSAnulli Water Prnel TEE c BAR ALUMINUM EXTRUSION SANDING BLOCK ler nun RUFF-STUFF SeN-adhenive nand paper e True Surace WesIWurOal 11 Inch $253 .. Heady Un 22 inch $371 RUFF 6 STUFF SELF ADHESIVE SHEET SANOMPER MANE YOUR OWN SPECIAL SANDING SHAPES Na meuny glue er drying tIme MedlumFIneSuperFhie 893 MINIosAw $7 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE Saw hen rugged die-cant frame cemlertahle chip-preel pteutlc innest handle Receding anne ad guslahIn B hlede Riven gnnd wnrh acceun Cuts wued pleutic metal HARDENED MUSIC WIREextra hlndes-3/$1RR Add 20% postage Send 25 catalog March 1987 129 1 44 I/NiaB1DaUk5w fl2FWiLwQdiwM IJI I1UAUTCVflIII IVVMIUEE~I IWe want take advantage JR Radios Kalt Helicopters Webra Engines RIC Cars Iand accessories prices special can offer direcy through new FREE publicaon HobbyIst issue will packed full FREE offers andI discounts wont believe few specials waing you.I FREE postage handling pre-pald orders FREE Circus Epoxy glue set Aircraft Combo FREE scale pilot figure wIth aircraft kit So youre hobbyist whos ready save moneyPpr~ say YES fill name address 2 l ad back us start receiving EE issues Hobbyist~ uzPI call toll free 18007820022 I want super values RIO equipment Name_______________________________________________ Address__________________________________________________I I_________________________ 3132 So Highland DrCity State Zip___________________________________________ -a Las Vegas Nevada 89109 Customer Service Call 1-702-732-0022 Far Orders call Toll Free 1-800-762-0022 J advertisement iood thai 1st issue month point contact depending upon length pipe measured engine long pipe some cooling before reaching wood may problem Provide clear ance around hot pipe especially near en gines exhaust port aware possibility fire Scale models too valuable lose through kind accident Spilled fuel may also ignite burning alcohol isnt visible daylight isnt possible see flame until wood structure ignites FAI rules Some interesting rules-change pro posals have come Switzerland England Swiss asking complexity bonus setup changed provide 5% bonus wingwarping control 5% braced multi-strutted biplanes 10% biplanes undercambered alifoil 15% three wings engine bonus would changed 10% two engines including ducted fans Landing gear bonus would 5% conventional twowheel gear 5% retracts monowbeel tricycle 10% retractable conventional two-wheel gear 10% bonus would awarded model airplane prototype flown previous 1911 realm radio equipment Swiss asking gyro devices prohibited also wish see attempt flight eliminated Oslo World Championship attempts called meaning contestant wished postpone flight until end round caused serious delays lengthened contest time An official flight would model airborne 60 seconds Judges could permit repeat flights model fails start reasons outside control com petitor organizer such radio interference sudden changes weather Swiss also asking change definition overshoot maneuver pres ent rule states performed three-meter altitude difficult measure would changed below three meters Mick Reeves England has also come up interesting proposals asks rule takeoff must possible wind rigidly enforced means organizers would have provide flying field runway direction asks made permissible move model after taxiing provide space realistic takeoff Minimum dimensions 30 meters runway width 100 meters runway length available both directions Mick also asks dropped items tanks bombs etc static judged also wants see high low scores five judges deleted Silencers should hidden view inside aircraft Presently permissible add muffler between static judging flight present rule requirement contestant provide prototypes cruising speed should changed maximum speed since cruising speed military aircraft unknown Mick prefers have model static judged four meters measured models center rather present measurement nearest part model thinks color K-factor static judging too high should reduced six three static realism score would introduced craftsmanship score would deleted present Scale Detail static score would creased K-factor 10 stipulation simple aircraft would receive fewer points complex models Mick also wishes see engine size limits abolished completely Static judging would done after first flight order Continued page 135 March 19871 31 CA MASK CA glue works wonders building models right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumeal soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPMl though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies Yes Im sick CA fumes Send CA mask Enclosed $1247 shipping NAME ADDRESS_______________________ CITY STATE___________ ZIP___________ Li VISA Li MASTER Exp Date________ ANNUAL RADIO CONTROL EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO APRIL 10 11 & 12 1987 presented Weak Signals RIO Club Toledo Ohio Exposition intormation avallaoie D contacting Wayne Yeager co-director ticket address shown below ADVANCED TICKETS may ordered sending self-addressed-stamped busi ness size 4 x 9 envelope Tickets 38235 Castle Romulus Michigan 48174 phone 313 941-6661 Canadian orders must contain International Postal Cou pon US Stamps orders above 5 tickets must contain extra postage Include check money order US funds made payable Weak Signals R/C Club along 25 cents per order handling charge must state expo days tickets used prices $400 per day adults $100 per day children 12 under Deadline ticket orders March 31 1987 Ticket sales final non 4,nAhI orders program will returned near mid-March Tickets also available door COMPETITION CLASS NON-MILITARY SPORT SCALE PLANE AMA Rules MILITARY SPORT SCALE PLANE AMA Rules PRECISION SCALE PLANE AMA Rules PATTERN PLANE SPORT MONO-PLANE non-scale models SPORT 81-PLANE non-scale models OLD TIMER FREE FLIGHT R/C ASSIST R/C SAILPLANE non-scale models COMPETITION BOAT MILITARY SCALE BOAT HELICOPTER PLEASURE POWER BOAT R/C CAR WORKING VESSEL-UNARMED NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made uSA AERO-PACER $8900 Sport-trainer Span 64 Weight 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 543/4 Weight 5-6 lbs Wing load 15 oz Engine 45-65 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Dealer inquiry invited AERODROME MODELS LTD 2623 5 Miller Rd Saginaw Ml 48603 517 781-3000 RC Scale/Wiscers Continued page 131 condense time requirements World Cham pionship 4/2 days proposals coming other nations well will come vote during FAIs ClAM plenary session April 1987 would appear will questions settled meeting possibly some recent ones certainly indi cates lively interest FAI matters have heard rumors some top Scale modelers US seriously considering entry FAt competition especially since weight limit about lobe raised seven kilograms 153 lb rules-proposals may actu ally reach rule book always interest see trends thinking modelers elsewhere modeling world Hobbypoxy colors Petit Paint Co makers Hobbypoxy have come up new formulations cover mixing colors European aircraft such Fairchild A- 10 Thunderbolt operating Europe camouflage scheme mottled green gray lizard pattern national insignia changed low-visibility black outline place red white blue formerly used formulas follow FS 34102 Light Greenfour parts H65 Bright Red three parts H49 Cub Yellow three parts H81 Black two parts H33 Stinson Green part H70 Gray part H 10 White FS 34092 Dark Greenfour parts H33 Stinson Green four parts H81 Black three parts H47 Bright Yellow two parts H70 Gray FS 36081 Dark Graysix parts H81 Black five parts H70 Gray part H47 Bright Yellow part H66 Dark Red mixtures should used HOS Flat Hardener Bob Dolly Wischer S-22J Lapham Peak Rd Delafleld WI 53018 RC Soaring/Blakeslee Continued page 45 cross-country enthusiasts will want sou venir booklet last years Great Race has three-views specifications 15 entries also has photos top placers including winning Pacific Soaring Association Team Larry Jolly Ken Findlay Sue Beatty Greg Ford flew LJMP Comet Larry Jim Jolly designed specifically cross-country racing Send $3 check money order Jim Mclntire 23546W Fern St Plainfield IL 60544 BOX 429SKYLAND N uoi IIII SS0 sar complete line * SCALE DOCUMENTATION * FEATURINGALH INGSPHOTOS REPLA-TECH 1g87 INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG S250 VIDA OREGON g7486 PAW DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tulahoma Tenn 37388 March 1 987 1 35 QUALITY FREE FLIGHT KITS AND SUPPLIES FOR COMPETITION AND SPORT SINCE 1975 Dealer inquiriescatalog SOC invited BLUE RIDGE MODELS. FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm sqs41RES 5279& Up F505lOfl ToOls 21OOM5dflM Rd Metals C4lVPIfL ~LS CG 00 catsIo SpilflgflbldOtdO 45505 5513-322-8562 DH6O GIPSY MOTH$10900