RADIO CONTROL SLOPE SOARING THE NEW SOARTECH #10 has best issues yet Packed full useful information must have familiar SoarTech publications works contributing authors compiled SoarTechs Herk Stokely Herks intent provide up-to-date technical information betterment RC soaring now ten issues resource library modeler can find extremely useful designing building flying RC gliders sailplanes SoarTech #10s collection articles super buy $16 US Martin Bamerts construction molding article alone worth price issue articles however superb articles Jim Stephens Steve Pituch offer readers chance get source codes order perform model design analysis home computer Herk says also contain valuable modules relate input display data well output results program writer often challenged input display output calculations produce answers great buy wanting expand RC soaring horizons want copy SoarTech #10 send $16 SoarTech 1504 N Horseshoe Circle Virginia Beach VA 23451 countries outside US cost $20 surface $23 air mail hope enjoy reading Another outstanding book Airfoil Design Data Dr Richard Eppler highly technical book explains logic design philosophy behind development Dr Eppler s computer program design analysis low-speed airfoils also explains latest state development program design low-speed airfoils Dr Eppler Dan Somers two individuals primarily responsible Dr Eppler being behind development long-used Eppler series airfoils Dan Somers brains behind source code book represents 30 years airfoil design work Dr Eppler focus book program methodology solve potential flow problem given airfoils examines designs airfoils properties potential flow distributions book contains descriptions solution potential flow analysis design problems can lead calculation boundary layers total lift drag moment coefficients worth pointing out Dr Eppler s airfoil design development code primarily responsible developing new age airfoils has allowed such individuals Quabeck Girsberger Selig produce airfoils might have otherwise enjoyed safe say Dr Eppler has pioneered area aeronautical engineering book documents pioneering works Dr Epplers book also presents number new airfoils has developed computer program Although airfoils appear designed mostly full-scale aircraft extremely valuable resource available Springer-Verlag New York Inc PO Box 19386 Newark NJ 07 195-9386 Tel 800-SPRINGER 777-4643 book $79 plus shipping handling way Dr Eppler will guest speaker 1994 World Soaring Jamboree has agreed present latest findings wing-induced drag will form presentation will feature special experiments Dr Eppler will provide second speech Battelle Auditorium about history aviation has observed unique vantage point presentations should interesting sailplaners big small Scale opportunity meet great minds aeronautical engineering havent heard about World Soaring Jamboree May 1994 97 Englishman Peter Tribe launches nicely done Hawk PSS May 1993 Long Mynd Jaskolka made John Watkins model Peter enjoyed slope soaring Eagle Butte August Photograph V Pedrielli Erlangen Germany 1993 Airtow Vintage Glider meeting Grunau Baby photograph V Pedrielli THE SOARING EVENT OF 1994 EVENTS INCLUDE 4 ~0 V co e 4 444 coo V Professor Dr Richard Eppler Special Guest Speaker! Presents Reductions Induced Drag & Iistory Aviation UIUC Professor Dr Michael Selig Airfoil Presentation F3B World Champion Joe Wurts evening Presentation! JAMBOREE Sponsored SLEGERS INTERNATIONAL RIC SOARING DIGEST 1so1s qp THE RICHLAND CHAMBER OF COMMERCE May 28 June 6 RICHLAND WASHINGTON USA Registration Information 0 & Brought modelers World Over Soaring Clubs Northwest WSJ PO Box 4267 W Richiand WA 99352 Figure 1 Eppler E-66 airfoil event will want miss Scheduled May 28-June 5 1994 WSJ will have festival atmosphere 18 soaring events events include Open Thermal Duration Two-Meter Standard Class Novice Thermal day F3J Thermal F3B Thermal F3H Cross Country Scale Power Slope Scale Novice Slope Racing Unlimited Slope Racing 60-inch Slope Racing PSS Slope Racing slope FunFly Record Trials WSJ offers opportunity participate Washington wine-tasting evening social special guest speaker presentation Dr Eppler separate evening banquet raffle well vendor forum organizers want enjoy yourself registration information send request World Soaring Jamboree PO Box 4267 W Richland WA 99352 letter Vincenzo Pedrielli offered provide therefore slope soaring information Scale news coming out Europe specifically Italy Vincenzo business travels great deal result able obtain European RC soaring information would otherwise miss Last summer good fortune play host Peter Tribe English Power Slope Scale PSS enthusiast favorite slope true spirit modelers Peter has 98 Model Aviation D July 93 White Sheet UK Scale Vintage Glider meeting Spalinger 510 Zuerivogel Dave Pullinger V Pedrielli photo Vincenzo Pedrielli hand-paintedBob Bankas Scale resource guide boasts Bird Time V Pedrielli photothe worlds largest commercial collection aircraft documentation LARGEST SELECTION AAA GRADE CONTEST BALSA SFACTION GUARANTEED PED 100% BALSASHEETS 3848 1/32o23344 1/iSo 23344 3/32 o 24053 I/B o24357 3/iSo 25065 114 o26079 3/8 o 230 42 78105 1/2 u 295125 1/32x 333 45 3953 l/20u 333 45 3953 1/16o333 45 39S3 3/32x 339 54 4760 1/8 x 347 65 5775 3/16o355 75 8890 1/4 u370 100 85115 5/16o398135 3/8 o395 130 102150 1/2 x3115 155 135180 3/4 x 3199270 1/32u450 70 5979 1/20o450 70 5979 1/16o450 70 5979 3/32x459 90 7398 1/8 o468 100 83115 3/16o478 120 97135 1/4 o495 136 135155 5/16o4162203 3/8 x4145 214 185247 1/2 x 4209 270 249290 WINGSKINS 3036 1/20x 12479535 1/16n 12479535 3/32u 12579645 MATCHED SHEETS 4248 3/32x4109125 1/8 x4129148 3/16o4144165 1/4 o4155178 SEND $100 FOR COMPLETE CATALOG BALSA STICKS 1/16 50 1/16 xI/4 1/16x3/8 1/16 ol/2 3/3250 3/32 nl/4 3/32x3/8 3/32 xl/2 1/8 SO 1/8ol/4 1/8o3/8 1/8xl/2 3/16 50 3/18xl/4 3/18x3/8 3/16x1/2 3/16o3/4 3/16xl 1/4 50 1/4x3/8 1/4a 1/2 1/4x3/4 1/4xl 5/16 SO 3/8 SO 3/8 xI/2 3/8x3/4 3/8xl 1/2 50 1/2x3/4 1/2xl 5/8 SO 3/4 SO TRAILING EDGE 1/8 xl/2 3/16 o3/4 1/4xl 5/161-1/14 3/8xl1/2 1/2o2 1/4x2 1/4x3 3/8x2 3/8x3 1/2x3 3848 10 10 11 15 09 12 13 17 09 1218 1319 1824 1219 18 26 1826 2231 2642 3752 1926 2329 25 35 3650 4567 2330 30 39 3549 4658 5575 42 55 5270 6589 5575 7598 36 25 30 35 45 49 79 65 05 79 uS 1 35 OUnMUCUEMLO36 201/16x3699 201/16x41835 203/32o 3875 153/32x4999 151/8x3775 101/8x 4775 IS3/16x3940 103/16x4899 101/4x3765 101/4x41285 103/8x3920 53/8x4835 51/2x3605 51/2x41150 BUNDLEDEALS48 18 3/32u4900 51/8x4550 5 3/16x4650 5 1/4x4735 BALSASHEETS LIGHT 4-8LB3648 1/32x378119 1/20u378119 l/16u378119 3/320393144 1/8 x3114175 3/16u3132202 1/4 o3157237 3/8 x3188307 1/2 x3238382 3/4 03375519 1 o 3532719 1/32x4123188 1/20x4123188 1/16o4123188 3/32o4149232 1/8 x4169262 3/16o4197300 1/4 04237332 3/8 o4357563 1/2 o4482688 ALL 46 LB WOOD SUBJECT TO AVAILABIL[1Y rut on.n122448 3/32 x6120225430 3/32 x 12225430750 1/8 x6125245475 1/8 o 12245475835 1/4 x6105215345 1/4 0 12215345650 3/8 x6130249450 3/8 0 12240475850 1/2 x6175295400 1/2 x12295495970 SUPERIORUTE2448 1/8x6150285 1/Ba 12285550 UTE PLY122448 1/BoB75110175 1/8012110180350 1/4 sO95155275 1/4x 12155295550 2mm & 25mm same price 1/ 3 PLY BIRCH 122448 I/64x6 125235439 1/64o12 235439850 1/32x6 95159299 1/32o 12 180299550 I/16x6 95159299 1/16o 12 180299550 1/8 x6 95159299 1/8 x12 180299550 4 PLY BIRCH 122448 3/16x 6109 215 315 3/16x 12215 345 625 HARD MAPLE 18 1/4x1/440 1/4x3/845 1/4o1/250 3/Bx3/B45 3/Bxl/250 3/Bx3/488 3/8xl65 3/8o 1-1/2 1/201/2 1/2o3/4 S/8o3/4 3/4x3/4 GROOVED LG MOUNTS 3/8x3/41/8 3/8o3/45/32 1/203/43/16 SPRUCE BASS 1/16 nl/4 3/32 o 1/4 1/B SO 1/80 1/4 1/8x3/8 1/801/2 1/8x3/4 3/16 50 3/16x3/8 3/16 ul/2 3/16o3/4 1/4 50 1/4x3/8 1/4nl/2 1/4u3/4 3/8 50 3/8 nl/2 1/2 50 1/2x3/4 -J CO LU 3 p SPRUCE TRIANGLES 3/8u3/8 1/2o 1/2 3/4o1/4 BIRCH DOWELS 1/8 3/16 1/4 5/16 3/8 36 18 20 17 20 22 30 42 28 33 43 55 34 48 45 70 49 60 66 75 96 88 88 75 82 12 45 45 50 48 25 26 25 26 32 40 55 38 44 57 74 50 55 65 93 69 77 88 97 36 47 64 81 38 14 17 19 25 35 IHIANULO 1/4a 1/4 3/8x3/8 1/2xl/2 3/4x3/4 Ixl I-I/2x 1-1/2 2 x2 AILERONS36 1/4xl 1/4a 1-1/4 1/4a 1-1/2 1/4u2 5/16x1-I/4 5/16x 1-1/2 5/16x2 3/8 1-1/4 3/8 1-1/2 3/8x2 1/2 1-1/2 1/2o2 EPOXY 5 Minute 15 Minute 30 Minute 2 Hour 20 Minute INSTANT GLUE 1/2 oz Thin OF 1 oz Thin OF 2 oz Thin OF BozThinorGF 1/2 ox Extra Thick 1 oz Extra Thick 2 oz Extra Thick 8oz Extra Thick 0QBLEBiEQiE0AM 1/2 ox Thin OF oz Thin orGF 2 ox Thin orOF 2 oz Accelerator 10 oz Ace Refill 3 oz Acc No Freon lOoz ACO REF No Freon 1 oz Dehonder 36 25 30 35 49 00 115 195 48 4868 5575 6287 6895 6287 6489 7299 8898 7097 79110 80115 90125 4-1/2 0290Z 425669 425669 425669 425669 429040 185 300 550 1650 200 330 600 1800 365 665 1200 315 675 315 600 199 Coot g States Handlina Churge-ax dO pen UPS Md 9490 fur 000INFO& HELPORDERS ONLY24HR FAXSEND MA ILLONE STAR MODELS $500 PP APO FPO eccenr Woe MC Disuous personal cirecAs CO e/% tao TeosuSoorreocy or-Jy Ien woodurder Sf000806-745-63941-800-687-5555806-745-6483ORDERS TO RI 9 Box 437 Lubbock TX 79423 agreed keep us up date happenings PSS crowd England absolutely great news since P55 flyers England quite serious about flying have therefore produced some gorgeous PSS models world Due baggage limitations airliner Peter flew US able bring model However extremely good flying model Peter tested air scratch-built Hawker Siddely Hawk PSS model replica British basic advanced military trainer ground-support capability As such capable carrying 5000 pounds externally would include bombs rockets long-range fuel tanks Hawk used Rolls-Royce Turbomeca Adour engine 5300 pounds thrust stabbing tail capable speeds 9 Mach think Hawk great-looking PSS model Let know what think and/or send pictures PSS creation Airfoil month Starting months column will sharing three airfoil sections designed Dr Eppler E-66 E-67 E-68 series airfoils generated large Scale models E-66 airfoil specifically designed produce good Ci has thickness 1101% thereby affording thickness appropriate structural needs Scale model series including E-66 designed fit needs model sporting high-aspect-ratio wing dont have numbers yet fair say E-66 has rather large negative C000 such will need considered designing around section interested E-66 will glad provide coordinates Please remember include SASE close out months column want let know Bob Banka Scale Model Research has new catalog titled Scale Aircraft Documentation Resource Guide Resource Guide features 225 sailplanes Foto-Paaks format RC soaring enthusiasts Bobs sailplane selection boasts multiple choices some specific designs such ASW-17 Scale builders can choose design like best would include white white white red white blue etc Hey didnt know white popular sailplane color suppose Answer next column Scale Model Research can reached 3114 Yukon Avenue Costa Mesa CA 92626 Tel 714 979-8058 Tell Bob read about him MA inverted slope 994 99 CONSTRUCTION THIS KIT IS 65% COMPLETE WITH FIBERGLASS WING SKINS WHEEL PANTS FUSELAGE AND SPARS BALSA TAIL AND ALUMINUM LANDING GEAR CONSTRUCTION AND FLIGHT VIDEO AVAILABLE SPECIFICATIONS ENGINE60-90 2 CYCLE FUSELAGE OAL WING SPAN WING AREA729 SO IN AVERAGE CHORD1041 IN LANDING GEARALUMINUM AIRFOIL SEMI SYMMETRICALRAF-48 WEIGHT11 LBS WING LOADING241 OZiSO IN RADIO5 CHANNEL FLYING THE ELLIPSE HAS EXCELLENT LOW SPEED DIRECTIONAL STABILITY WITH FLAPS OR WITHOUT LANDINGS ARE VERY SLOW WITH FLAPS ITS SLEEK LOOKS MATCH ITS SPEED REAL NICE SPORT PATTERN PLANE FOR INFORMATION COGSWELL ENGINEERING TEL 909-735-8679 2379 WEATHERWOOD RD FAX 9o9278-3563CORONA CA 91719
