The Mystique of the Flying Wing

NO OCR TEXT NO OCR TEXT ance 12 taper 12-in root 6-in tip worked out produced 72-in span first thought sweep back leading trailing edges However severe sweepbacks such delta model tends fly nose-up slide turns So chose straight leading edge forward tapering trailing edge airfoil decided semi-sym metrical section wide speed range 1% reflex French data steep leading edge entry work turbulator After few tries able draw acceptable root tip tem plates transferred plywood cutting foam wing Since cut seve ral hundred cores Silent Squire Slope Squire no problem new airfoil though taper severe method partially sheeting foam initiated Silent Squire Slope Squire applied new wing lieu split trailing edge system used Nor throp control yaw decided use solid vertical fin no rudder Some sort box required hold radio components short fuselage drawn built appeared no obvious advantage splitting control surfaces mounted trailing edge wing separate inboard elevators outboard ailerons linkage could have problem felt would control instead used elevons function elevators ailerons problem rig elevons could both travel up down gether and/or counter actuate Though some sliding servo systems using grooved rails designed work V-tails found kind unit could bind Saracens spans 48 120 appear picture Sailpianes Slope Thermal Soaring began Simitar series Saracen April 1976 RCM Tracer 40 looks like regular Pattern ship staband flies great front 50-in wing isa K&B 40 MACS muffler Watch out 60 Tracer Pattern Top Gun 4-lb 40-powered 36-in-span package dynamite expert fliers K&B 65 up front veteran pilots suffer weak knees easily could have called Viper taken Battle Star Galactica TV series few years ago Bill Evans mixer has used sizes Simitars 020 2100 Both ser vos slide ply tray 1/o-ln dowels run ning through front rear formers Outer Nyrod slides over dowel ce mented ply tray Right servo aileron left elevator designed sliding tray system using Nyrod tubing A-in dowel eliminate possibility binding final product became Saracen moment truth hand stood holding Saracen position first launch moderate wind pushing up slope signaled good lift Saracen eased space During first 25 feet traveled felt succeeded flew went out control fell brush below What wrong Maybe wouldnt fly Truth matter Sara cen performed like tail-heavy ship set center gravity CG forward normal 30% far enough So added nose weight until ship balanced 1 behind leading edge computes 10% root chord about 14% average chord After CG adjustment check air frame operation radio control surfaces Saracen again pushed off slope What differ ence What pleasure excellent roll control good pitch stability few easy turns Saracen above hill flying like other good Slope Soaring machine just looking different Successive flights involved observing flight characteristics making movies studying afterwards reached several conclusions First flying wing model use practical Control response fast Turns tight could keep front about 30 feet out hill space no 50 feet left right better other ship slope real plus fact Saracen would stall Gradually feeding up-elevator holding full up would result gen tle bobble nose up down fol lowed nosing down about three Du-Bro Mixer also works well control elevons Top receiver next ele vator servo Aileron servo arms attached elevons Installed Simitar 540 author Centron June 1979 RC Sportsman 6O-ln-span Slope Soarer first designs anhedral Looks like bird prey flight Tnuonu ot mu tirum puwuruu nturu u~uuruu mu Aviauon ana leading plans seller several years picture graced ma ouvur Tanya Herbert poses Bugs Ear tiniest Simitars March 1982 ModelAirplane News Specs O2Oengine 11 oz 24-in span Quick loops turns rolls feet leveling off after another 50 feet level flight would another bobble etc explanation flight charac teristics follows Since leading edge wing first part lift ing surface enter flow air will first part surface stall As angle attack wing increased airspeed reduced point reached leading edge wing stalls falls action automat ically reduces angle attack wing thereby preventing full wing stalling principle has test ed times power models takeoff pulling up-elevator stretch ap proach will result normal stall roll-off wing Three weeks after first flight Saracen Saracen II completed second Saracen slightly thicker air foil longer streamlined fuse lage other components remained same Flight tests Saracen II showed achieved intended results improved soaring lighter air better appearance final Saracen featured April 1976 issue RC Modeler Two weeks later Lil Saracen air scaled-down 48-in version Saracen II Lil Saracens have seen darting up down coastal bluffs Pacific CG ship moved forward A-in leading edge five weeks Super Saracen rolled out shop 120-in-span monster taught aspect ratio ef fects roll control somewhat scaled-up Saracen aspect ratio increased 51 101 first launch Super Saracen right out bookstraight out flat no effective roll yaw control elevons working like dive flaps would induce roll just slowed down ship After installing rudder increasing area elevons outboard tips found could manage Continued Page 152 Left This Simitar 09 first multi-engine versions built Dave MacRoberts Flight performance paved way 049 19 60 Simitar Twins Right huge tip plates Alien proved too effective Elevons werent able pro duce satisfactory roll control needs work Evans says Hes wondering answer could add outboard rudders 80 Model Aviation neimiiar ueuce upuaiuuiina olmilarAY uppuaruu ininuugust 1 Oi IWAIV Improve ments include removable low wing trike gear Paulette Evans poses Yosemite Park Simltar 2100 MAN Giant Steps book largest 90s up has 1 00-in span weighs 20 lb Its gentle easiest-to-fly Simitars Shown model Randy Bloomwho pushed Evans designing 2100 version Bi L66gec Scaajo Coupon Worth 5OO OFF Any order $3000 PLAN N PATTERN SETS See ads listings Send $100 refundable brochure over 30 Plan N Pattern Sets WE Technical Services PO Box 76884-A Atlanta Georgia 30328 tion develop effective means reduc ing noise unacceptably limiting performance Such rule would put us much further ahead almostinevitable noise-abatement regulations applied competition flying Give some consideration let know thoughts Richard L Perry 7578 Vogels Way Springfield VA 22153 FLYING NEAR Al RPORTS BE CAREFUL BY LEE TAYLOR MM POJNOER & PRO PH0TOGRAP-ER SUPER two-hour long video cumu lative product TEN YEARS active shooting Festuring 165 LB GRUMMAN GOOSE 16 B-17 16 SPRUCE GOOSE MASTERS CHAMPION SHIPS AMA NATIONALS & MORE Recorded VHS Hi-Grade Video Tape $3495 IcvLIF RESIOENTS S SEND SASE FOR SEND REOI OR MONEY ORDEN E 152 Model Aviation Flying Wings/Evans Continued page 80 turn ship got nose down increase speed After watching movies Super Saracen flight decided slug gishness roll increases aspect ratio increases proven later lOO-in-span powered version 51 aspect ratio excellent roll control may conclude experience aspect ratios below 71 will give satisfactory roll control recommend between 51 61 Due excellent performance Saracen Lil Saracen slope next move develop powered fly ing wing First came Simitar AA version based Lil Saracen Simi tar XV based Saracen put air Flight performance both powered hellions terrific speed either enough make slope flying Saracen seem slow motion comparison can remember test flight of Simitars left bit weak kneed anxiety ending after engine quit things slowed deadstick glide approach touchdown Suc cessive flights proved much less unnerving soon great delight zip around sky full power no throttle control either grab some altitude before engine quit get 5 10 minutes soaring before landing RCM published Simitar construction article Model Aviation published Simitar XV both December 1976 issues Bill Winter editor Model Aviation reported Simitar XV leading plan seller several years 24-in-span TD 020-powered version called Bugs Ear came next 105 oz Cannon Mini system mite rolled like drill Its flying traits very good found would fit easily dashboard Chevy Engine power opposite direction led 23 35 finally Simitar 540first powered K&B 40 K&B 65 75 latter being performance plus Simitar 540 wing Saracens cut 50 Four channels used two slid ing tray control surfaces throttle fourth steerable nose wheel Performance 540 outrageous Vertical climbs can go out sight Con trol response smooth quick easi ly does loops rolls excellent inverted flight Since 540 requires fly its like computer fast obedient idiot Simitar 540 published October 1978 issue RCM would well discuss gear place ment experienced 540 Due lack horizontal stab placing gear impede rotation takeoff make ship stick touchdown took work answer place main gear 1 behind CG set nose wheel height leading edge wing 34 higher trail ing edge ship resting flat surface Also important main gear wheels bent forward rearward about 3 4 oz finger pressure aft tip fin would make nose wheel leave ground gear setup used good results Simitar Sport Simitar Deuce August 1981 Model Airplane News Simitar 61P October 1982 Model Aviation about twin engines first 09 twin followed 19 twin 049 twin 60 twin Simitar XIV published April 1980 issue Model Aviation As might expect great conster nation about danger one-engineout condition twin flying wing sure engine quit would spin dead engine wrong first 09 twin flew just great engineloops rolls etc no problem Having shown twin flying wing practical what next about X-wing first Astron X-wing powered 15 proved Star Wars guys something idea Astron taken Lil Saracen wing published Model p Matched Performance System TOP PERFORMANCE K&B ENGINES 16 AirpIsne 4 Murive K&B FUELS K5B GLOW PLUGS 7 Blendv4 cUvices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Mioo-Eallvvvs FILLER K&B SUPER POXY RESIN K&R SUPER POXY THINNER K&B SUPER POXY PRIMER K&R SUPER POXY PAINT K&B MIXING CUPS PROTECT YOUR RIONT TO FLYt Great footage BEST GIANT SCALE SEAPLANES SPORT FLYING UNUSUAL AIRCRAFT HELICOPTERS & MASTERS SCALE CHAMPIONS ProTechTor THERMO MOLDEDS ROWS ete L FRAMEGREAT GIFTY CC N FOAM FILLED 9512x5 4 * Transmitter ection Case RICE $35 Inclnde Shppcg & Hacdlna x e US CA ce add 6% Send check eEe BERGERON ENTERPRISES ROBERTACA 92632X ntnntee4e2s4tnNOfltfle4t~ 45 thick frost finish perforated nylon best glue grab Minimal ction No binding clicking mold flash exquisite tention detail ends countersunk pin ends bind knuckle smooth operation e fitting pin inimize play vibration flutter Klett hinges worlds highest ality used consistently top fliers Easily installed G Hinge Slotting Kit No 95 RK9-15 Klett Giant Pinned Hinge 15 $369 NEW KLETT PIN-POINT HINGES Simplest possible installation drill two holes apply SUPER JET epoxy Broad gusset web provides visual alignment unlike other barbed hinges stiffly braces hinges against flight loads e fitting pin minimize flutter vibration een barbs give solid anchor glue Silk smooth operation itionally Klett hinges worlds highest quality Used top fliers Recommended leading designers lo 93 RK6-7 Klett Pin-Point Hinge 7 $135 No94 RK6-1 5 Klett Pin-Point Hinge 15 $250 CARL GOLDBERG MODELS INC 4735 West Chicago Avenue e Chicago Illinois 60651A1084 Aviation April 1979 issue 40-sized Astron based Simitar 540 wing took shape published RCM November 1979 Astrons much normal wing area roved very easy handle pecia1 trait Astron 40 ould make fly-by down length runway low speed nose up t 40-degree angle jam throttle md go straight up just wouldnt stall rhere also double X-wing two stron 40s joined tips Flight per ormance both 40s running reat However due fact ngines set 40 apart 80-in pan felt would spin towards dead engine did During construction Astron luestion changing control setup ame up What would happen lower ring rigged ailerons top ring elevators way md out sure try did ound control system wowed ell difference control sponse bit slower levons down-stick nor ial required inverted flight subject inverted flight would good mention flying ing model requires bit down-ele tor elevator keep iverted due fact about up-elevator trim required ormal flight transmitter trim center elevon should set up neutral Again provide airfoil reflex required flight craft inverted normal down-stick required essence re-reflex elevon interested large ships largest Simitar named 2100 has 100-in span weighs 22 lb can powered 90 glow Quadra Simitar 2100 construction article special edition Giant Steps published Model Airplane News easi est-to-fly Simitars 144 sq ft wing makes almost float Continued page 156 r ( _____________AT___ __________ C NO tIPNT CTAI-f T ER THAT WAY March 1985 153 /4 SCALE GIANT SIZE PINNED HINGES Flying Wings/Evans Continued page 153 now twin 60 version 2100 Further experiments have included development Skywalker stretched-fuselage version 540 Skywalker built three sizes 1AA 40 60 variation Skywalker rear-swept-wing version discarded due some tendency fly bit nose-up slide just percepti bly turns As might expected returned original Simitar wing planform no problems AA 40 K&B 60-powered Skywalk ers However severe flutter problems encountered Webra 60 tuned pipe installed additional power pushed pressures over limit servo rods servo torque Several Webra-powered ships destroyed though Simitar 540 powered K&B 75 pumper pushed over 150 mph first experience severe flutter finally corrected using A2-in piano wire pushrod 35 inch-ounce servos measures worked overpowering control sur faces eliminate flutter real answer balance control surfaces 60-size ships both Simitar Skywalker Continued efforts test different fly ing wing designs have included some anhedral Desperado Top Gun emerged Powered K&B 65 MAC muffler absolute animals have outrageous performance roll rate Top Gun must seen believed Since Top Gun smacks Battle Star Viper seemed right have counterpart Cylon result Mien Depending ones point view Alien either worked too well didnt work say latter short huge tip verticals provided stability could overcome alleron control elevons Two test hops resulted straight-out flight no hint roll response launch Alien flew straight out would turn choice cut power use elevator function elevon set down first landing done much surprise little finesse landing second flight planned thus better will require bit effort work out over-stability problem encoun tered Alien written work twin K&B 35 ducted fan Top Gun prog ress waiting three new K&B 7Ss set tail giant Top Gun Current thinking three 75s will give 18 pounds thrust 21 pounder During recent conversation Bill Winter talked developing lightweight Simitar 15 engine slow easy flying may have built-up wing should interest ing will called Simitar Slow Mo tion Editor Bill Winters East Coast version shown Fun column few months ago Droduct review product review product review current wave large 12 four-cycle en gines big two-cycle glow engines has cre ated demand fora durable heavy-dutytesting stand Tatone Products new Giant Test Stand cast aluminum strength good heat dissipation has wide base two slidingadjustable engine support bases designed accommodate size engines up 12 cu displacement engine support bases will become soft engine fuel soaking wooden test stands often Heavy-duty lug pressure pads steel engine restrainihg pins mounting screws included avail able local hobby shop Giant Test Stand can ordered direct Tatone Prod ucts Add $2 postage handling California residents add 6% sales tax limit saga must continue search Acknowledgements First thanks readers have written phoned let know about experi ences especially Simitar interest participation make effort worthwhile provide encouragement name Bill Braatz Indiana comes mind learned fly Control Line together Bill turned onto flying wings offering challenge build fly Wayne Sakamato Master-class flier Pattern cut teeth Sara cen first power plane Simitar XV Wayne still takes time out year attend win 540 Northrop flying Wing contest Randy Bloom San Clemente CA began RC efforts Simitar continued whole line through Top Gun Randy pushed design 2100 built first Dave Herbert Capistrano CA has blessed X-Wing Madness won Astron 40 MultiWing Nationals 1979 Frank Johnson will build fly thing went far build Dou ble X-Wing Seeing air sight behold John Ludwig No 1 Skywalker pilot Bishop CA Skywalkers seem everlasting Gus Morfis turned countless sketches completed ships super drawings make construction articles reality support Skynauts Saddleback Valley has great President Andy Borgana still suffering infec tious sting Simitar Andys words Simitar airplane its sickness Finally especially thanks Bill Winter Don Dewey Carl Wheeley Art Schroeder Dick Kidd believed enough print construction articles ventured well beyond expected reader acceptance wife Joan children lived Specifications Wing Area 1500 sq Span 7-2 Weight 20-25 lbs Engine 20-37 RIC Mfg 706 Easton NE. North Canton OH 44721 216-499-5323 A monthly publication covering International RC Soaring Scene $1 6/yr US Canada & Mexico $24/yr elsewhere via airmail Post Office Box 269 Peterborough NH 03458 156 Model Aviation Giant Teat Stand @ $2495 Tatone Products Corp 1209 Geneva Ave San Francisco CA 94112 tel 415/334-7189 New 1/5 Scale Sea Fury Beautiful Stable Flyer Capable AIIArobatlc through new project daily single complaint Truly owe above others too numerous mention acknowledge friendship support help encouragement encounter Mystique Flying Wing Bibliography SaracenRCM April 1976 72-in glider SimitarRCM December 1976 48-in AA Simitar XVMA December 1976 54-in 15 Simitar 540RCM October 1978 50-in 40 Simitar Twin XIVMA April 1980 60-in Twin 19 AstronMA April 1979 32-in X-Wing 15 -19 CentronRCS June 1979 60-in Glider Astron 40RCM November 1979 40-in X-Wing 40 Simitar 61-PMA October 1982 60-in Pattern retracts 60 Simitar DeuceMAN August 1981 54-in 21 Bugs EarMAN March 1982 24-in 020 Simitar 2100MANGiant Steps 1982 100-in 22 lb 90/Quadra Silent SquireRCM February 1975 60-in Slope Thermal Slope SquireRCS January 1977 60-in Slope Low Wing Hot RockMA November 1977 50-in 40 Sport Low Wing Hole CardRCS September 1976 48-in 09 Sport High Wing WinterhawkMA May 1978 100-in Thermal Glider DasherMA October 1978 40-in 25 -35 Sport Low Wing SevilleMA May 1977 80-in Thermal Low Wing Dirt StripperMA November 1980 48-in 19 -40 Sport High Wing CrosswindMA August 1981 72-in 15 Sport Low Wing MaximumRCM September 1982 72-in Thermal Low Wing Practical Slope Flying RCM August 1976 Easy PackerRCM April 1979 Flight Assurance TechniquesRCM August 1978 Properties Foam . anuary February March 1978 Foam CutterMA January 1979 Firewall FinesseMA June 1981 Lightweight FoamMA December 1984 Beautiful & Ugly/Berliner Continued page 86 insist jets really airplanes rather prod ucts impersonal computers True enough hide interesting parts inside blame flying machine behavior its designers well aware risks volved declaring jets among beautiful airplanes shall charge ahead deHavilland Comet air liner magnificent twin-engined racer first true jet airliner enter service suffered insuffi cient engineering merely paved way Boeing 707 make history its simplicity line curves dont look like drawn machines make great shapes air its profitable replacements have engines hanging wings bolted tails Comets engines modestly tucked inside its wings BAc/Arospatiale Concorde worlds successful supersonic FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY March 1985 157 AMERICAN 4JUNIOR 74 Glider sassy little gilder back atruffin Its stuff Per forms delightful stunts balsa 74 features famous A-i Steam Formed Cambered Wing SLEEKURVE Round Edged Fuselage Precise authentic printed detail originals fuselage rudder printed both sides think youll love icau Junior Classic 743-la-l Fun-Pak495PUN 74GiidersingleFus-Pak Au luiiderKit395 404AlmnsfReadyTsFiyKft 595 BoxS48 Oregon CIty 0R97045 See ymr Hstuy Dealer TODAY II ml stock IlIry usy order ills yus ml seder diesl Psnlsge s,d Hmdlig Cheges EISO tsr Ore tOrI usdl PsO pls 1095 15 mob OddIllosal Astounding realism ainabk plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. Darn Good Airmen. complete

NO OCR TEXT NO OCR TEXT ance 12 taper 12-in root 6-in tip worked out produced 72-in span first thought sweep back leading trailing edges However severe sweepbacks such delta model tends fly nose-up slide turns So chose straight leading edge forward tapering trailing edge airfoil decided semi-sym metrical section wide speed range 1% reflex French data steep leading edge entry work turbulator After few tries able draw acceptable root tip tem plates transferred plywood cutting foam wing Since cut seve ral hundred cores Silent Squire Slope Squire no problem new airfoil though taper severe method partially sheeting foam initiated Silent Squire Slope Squire applied new wing lieu split trailing edge system used Nor throp control yaw decided use solid vertical fin no rudder Some sort box required hold radio components short fuselage drawn built appeared no obvious advantage splitting control surfaces mounted trailing edge wing separate inboard elevators outboard ailerons linkage could have problem felt would control instead used elevons function elevators ailerons problem rig elevons could both travel up down gether and/or counter actuate Though some sliding servo systems using grooved rails designed work V-tails found kind unit could bind Saracens spans 48 120 appear picture Sailpianes Slope Thermal Soaring began Simitar series Saracen April 1976 RCM Tracer 40 looks like regular Pattern ship staband flies great front 50-in wing isa K&B 40 MACS muffler Watch out 60 Tracer Pattern Top Gun 4-lb 40-powered 36-in-span package dynamite expert fliers K&B 65 up front veteran pilots suffer weak knees easily could have called Viper taken Battle Star Galactica TV series few years ago Bill Evans mixer has used sizes Simitars 020 2100 Both ser vos slide ply tray 1/o-ln dowels run ning through front rear formers Outer Nyrod slides over dowel ce mented ply tray Right servo aileron left elevator designed sliding tray system using Nyrod tubing A-in dowel eliminate possibility binding final product became Saracen moment truth hand stood holding Saracen position first launch moderate wind pushing up slope signaled good lift Saracen eased space During first 25 feet traveled felt succeeded flew went out control fell brush below What wrong Maybe wouldnt fly Truth matter Sara cen performed like tail-heavy ship set center gravity CG forward normal 30% far enough So added nose weight until ship balanced 1 behind leading edge computes 10% root chord about 14% average chord After CG adjustment check air frame operation radio control surfaces Saracen again pushed off slope What differ ence What pleasure excellent roll control good pitch stability few easy turns Saracen above hill flying like other good Slope Soaring machine just looking different Successive flights involved observing flight characteristics making movies studying afterwards reached several conclusions First flying wing model use practical Control response fast Turns tight could keep front about 30 feet out hill space no 50 feet left right better other ship slope real plus fact Saracen would stall Gradually feeding up-elevator holding full up would result gen tle bobble nose up down fol lowed nosing down about three Du-Bro Mixer also works well control elevons Top receiver next ele vator servo Aileron servo arms attached elevons Installed Simitar 540 author Centron June 1979 RC Sportsman 6O-ln-span Slope Soarer first designs anhedral Looks like bird prey flight Tnuonu ot mu tirum puwuruu nturu u~uuruu mu Aviauon ana leading plans seller several years picture graced ma ouvur Tanya Herbert poses Bugs Ear tiniest Simitars March 1982 ModelAirplane News Specs O2Oengine 11 oz 24-in span Quick loops turns rolls feet leveling off after another 50 feet level flight would another bobble etc explanation flight charac teristics follows Since leading edge wing first part lift ing surface enter flow air will first part surface stall As angle attack wing increased airspeed reduced point reached leading edge wing stalls falls action automat ically reduces angle attack wing thereby preventing full wing stalling principle has test ed times power models takeoff pulling up-elevator stretch ap proach will result normal stall roll-off wing Three weeks after first flight Saracen Saracen II completed second Saracen slightly thicker air foil longer streamlined fuse lage other components remained same Flight tests Saracen II showed achieved intended results improved soaring lighter air better appearance final Saracen featured April 1976 issue RC Modeler Two weeks later Lil Saracen air scaled-down 48-in version Saracen II Lil Saracens have seen darting up down coastal bluffs Pacific CG ship moved forward A-in leading edge five weeks Super Saracen rolled out shop 120-in-span monster taught aspect ratio ef fects roll control somewhat scaled-up Saracen aspect ratio increased 51 101 first launch Super Saracen right out bookstraight out flat no effective roll yaw control elevons working like dive flaps would induce roll just slowed down ship After installing rudder increasing area elevons outboard tips found could manage Continued Page 152 Left This Simitar 09 first multi-engine versions built Dave MacRoberts Flight performance paved way 049 19 60 Simitar Twins Right huge tip plates Alien proved too effective Elevons werent able pro duce satisfactory roll control needs work Evans says Hes wondering answer could add outboard rudders 80 Model Aviation neimiiar ueuce upuaiuuiina olmilarAY uppuaruu ininuugust 1 Oi IWAIV Improve ments include removable low wing trike gear Paulette Evans poses Yosemite Park Simltar 2100 MAN Giant Steps book largest 90s up has 1 00-in span weighs 20 lb Its gentle easiest-to-fly Simitars Shown model Randy Bloomwho pushed Evans designing 2100 version Bi L66gec Scaajo Coupon Worth 5OO OFF Any order $3000 PLAN N PATTERN SETS See ads listings Send $100 refundable brochure over 30 Plan N Pattern Sets WE Technical Services PO Box 76884-A Atlanta Georgia 30328 tion develop effective means reduc ing noise unacceptably limiting performance Such rule would put us much further ahead almostinevitable noise-abatement regulations applied competition flying Give some consideration let know thoughts Richard L Perry 7578 Vogels Way Springfield VA 22153 FLYING NEAR Al RPORTS BE CAREFUL BY LEE TAYLOR MM POJNOER & PRO PH0TOGRAP-ER SUPER two-hour long video cumu lative product TEN YEARS active shooting Festuring 165 LB GRUMMAN GOOSE 16 B-17 16 SPRUCE GOOSE MASTERS CHAMPION SHIPS AMA NATIONALS & MORE Recorded VHS Hi-Grade Video Tape $3495 IcvLIF RESIOENTS S SEND SASE FOR SEND REOI OR MONEY ORDEN E 152 Model Aviation Flying Wings/Evans Continued page 80 turn ship got nose down increase speed After watching movies Super Saracen flight decided slug gishness roll increases aspect ratio increases proven later lOO-in-span powered version 51 aspect ratio excellent roll control may conclude experience aspect ratios below 71 will give satisfactory roll control recommend between 51 61 Due excellent performance Saracen Lil Saracen slope next move develop powered fly ing wing First came Simitar AA version based Lil Saracen Simi tar XV based Saracen put air Flight performance both powered hellions terrific speed either enough make slope flying Saracen seem slow motion comparison can remember test flight of Simitars left bit weak kneed anxiety ending after engine quit things slowed deadstick glide approach touchdown Suc cessive flights proved much less unnerving soon great delight zip around sky full power no throttle control either grab some altitude before engine quit get 5 10 minutes soaring before landing RCM published Simitar construction article Model Aviation published Simitar XV both December 1976 issues Bill Winter editor Model Aviation reported Simitar XV leading plan seller several years 24-in-span TD 020-powered version called Bugs Ear came next 105 oz Cannon Mini system mite rolled like drill Its flying traits very good found would fit easily dashboard Chevy Engine power opposite direction led 23 35 finally Simitar 540first powered K&B 40 K&B 65 75 latter being performance plus Simitar 540 wing Saracens cut 50 Four channels used two slid ing tray control surfaces throttle fourth steerable nose wheel Performance 540 outrageous Vertical climbs can go out sight Con trol response smooth quick easi ly does loops rolls excellent inverted flight Since 540 requires fly its like computer fast obedient idiot Simitar 540 published October 1978 issue RCM would well discuss gear place ment experienced 540 Due lack horizontal stab placing gear impede rotation takeoff make ship stick touchdown took work answer place main gear 1 behind CG set nose wheel height leading edge wing 34 higher trail ing edge ship resting flat surface Also important main gear wheels bent forward rearward about 3 4 oz finger pressure aft tip fin would make nose wheel leave ground gear setup used good results Simitar Sport Simitar Deuce August 1981 Model Airplane News Simitar 61P October 1982 Model Aviation about twin engines first 09 twin followed 19 twin 049 twin 60 twin Simitar XIV published April 1980 issue Model Aviation As might expect great conster nation about danger one-engineout condition twin flying wing sure engine quit would spin dead engine wrong first 09 twin flew just great engineloops rolls etc no problem Having shown twin flying wing practical what next about X-wing first Astron X-wing powered 15 proved Star Wars guys something idea Astron taken Lil Saracen wing published Model p Matched Performance System TOP PERFORMANCE K&B ENGINES 16 AirpIsne 4 Murive K&B FUELS K5B GLOW PLUGS 7 Blendv4 cUvices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Mioo-Eallvvvs FILLER K&B SUPER POXY RESIN K&R SUPER POXY THINNER K&B SUPER POXY PRIMER K&R SUPER POXY PAINT K&B MIXING CUPS PROTECT YOUR RIONT TO FLYt Great footage BEST GIANT SCALE SEAPLANES SPORT FLYING UNUSUAL AIRCRAFT HELICOPTERS & MASTERS SCALE CHAMPIONS ProTechTor THERMO MOLDEDS ROWS ete L FRAMEGREAT GIFTY CC N FOAM FILLED 9512x5 4 * Transmitter ection Case RICE $35 Inclnde Shppcg & Hacdlna x e US CA ce add 6% Send check eEe BERGERON ENTERPRISES ROBERTACA 92632X ntnntee4e2s4tnNOfltfle4t~ 45 thick frost finish perforated nylon best glue grab Minimal ction No binding clicking mold flash exquisite tention detail ends countersunk pin ends bind knuckle smooth operation e fitting pin inimize play vibration flutter Klett hinges worlds highest ality used consistently top fliers Easily installed G Hinge Slotting Kit No 95 RK9-15 Klett Giant Pinned Hinge 15 $369 NEW KLETT PIN-POINT HINGES Simplest possible installation drill two holes apply SUPER JET epoxy Broad gusset web provides visual alignment unlike other barbed hinges stiffly braces hinges against flight loads e fitting pin minimize flutter vibration een barbs give solid anchor glue Silk smooth operation itionally Klett hinges worlds highest quality Used top fliers Recommended leading designers lo 93 RK6-7 Klett Pin-Point Hinge 7 $135 No94 RK6-1 5 Klett Pin-Point Hinge 15 $250 CARL GOLDBERG MODELS INC 4735 West Chicago Avenue e Chicago Illinois 60651A1084 Aviation April 1979 issue 40-sized Astron based Simitar 540 wing took shape published RCM November 1979 Astrons much normal wing area roved very easy handle pecia1 trait Astron 40 ould make fly-by down length runway low speed nose up t 40-degree angle jam throttle md go straight up just wouldnt stall rhere also double X-wing two stron 40s joined tips Flight per ormance both 40s running reat However due fact ngines set 40 apart 80-in pan felt would spin towards dead engine did During construction Astron luestion changing control setup ame up What would happen lower ring rigged ailerons top ring elevators way md out sure try did ound control system wowed ell difference control sponse bit slower levons down-stick nor ial required inverted flight subject inverted flight would good mention flying ing model requires bit down-ele tor elevator keep iverted due fact about up-elevator trim required ormal flight transmitter trim center elevon should set up neutral Again provide airfoil reflex required flight craft inverted normal down-stick required essence re-reflex elevon interested large ships largest Simitar named 2100 has 100-in span weighs 22 lb can powered 90 glow Quadra Simitar 2100 construction article special edition Giant Steps published Model Airplane News easi est-to-fly Simitars 144 sq ft wing makes almost float Continued page 156 r ( _____________AT___ __________ C NO tIPNT CTAI-f T ER THAT WAY March 1985 153 /4 SCALE GIANT SIZE PINNED HINGES Flying Wings/Evans Continued page 153 now twin 60 version 2100 Further experiments have included development Skywalker stretched-fuselage version 540 Skywalker built three sizes 1AA 40 60 variation Skywalker rear-swept-wing version discarded due some tendency fly bit nose-up slide just percepti bly turns As might expected returned original Simitar wing planform no problems AA 40 K&B 60-powered Skywalk ers However severe flutter problems encountered Webra 60 tuned pipe installed additional power pushed pressures over limit servo rods servo torque Several Webra-powered ships destroyed though Simitar 540 powered K&B 75 pumper pushed over 150 mph first experience severe flutter finally corrected using A2-in piano wire pushrod 35 inch-ounce servos measures worked overpowering control sur faces eliminate flutter real answer balance control surfaces 60-size ships both Simitar Skywalker Continued efforts test different fly ing wing designs have included some anhedral Desperado Top Gun emerged Powered K&B 65 MAC muffler absolute animals have outrageous performance roll rate Top Gun must seen believed Since Top Gun smacks Battle Star Viper seemed right have counterpart Cylon result Mien Depending ones point view Alien either worked too well didnt work say latter short huge tip verticals provided stability could overcome alleron control elevons Two test hops resulted straight-out flight no hint roll response launch Alien flew straight out would turn choice cut power use elevator function elevon set down first landing done much surprise little finesse landing second flight planned thus better will require bit effort work out over-stability problem encoun tered Alien written work twin K&B 35 ducted fan Top Gun prog ress waiting three new K&B 7Ss set tail giant Top Gun Current thinking three 75s will give 18 pounds thrust 21 pounder During recent conversation Bill Winter talked developing lightweight Simitar 15 engine slow easy flying may have built-up wing should interest ing will called Simitar Slow Mo tion Editor Bill Winters East Coast version shown Fun column few months ago Droduct review product review product review current wave large 12 four-cycle en gines big two-cycle glow engines has cre ated demand fora durable heavy-dutytesting stand Tatone Products new Giant Test Stand cast aluminum strength good heat dissipation has wide base two slidingadjustable engine support bases designed accommodate size engines up 12 cu displacement engine support bases will become soft engine fuel soaking wooden test stands often Heavy-duty lug pressure pads steel engine restrainihg pins mounting screws included avail able local hobby shop Giant Test Stand can ordered direct Tatone Prod ucts Add $2 postage handling California residents add 6% sales tax limit saga must continue search Acknowledgements First thanks readers have written phoned let know about experi ences especially Simitar interest participation make effort worthwhile provide encouragement name Bill Braatz Indiana comes mind learned fly Control Line together Bill turned onto flying wings offering challenge build fly Wayne Sakamato Master-class flier Pattern cut teeth Sara cen first power plane Simitar XV Wayne still takes time out year attend win 540 Northrop flying Wing contest Randy Bloom San Clemente CA began RC efforts Simitar continued whole line through Top Gun Randy pushed design 2100 built first Dave Herbert Capistrano CA has blessed X-Wing Madness won Astron 40 MultiWing Nationals 1979 Frank Johnson will build fly thing went far build Dou ble X-Wing Seeing air sight behold John Ludwig No 1 Skywalker pilot Bishop CA Skywalkers seem everlasting Gus Morfis turned countless sketches completed ships super drawings make construction articles reality support Skynauts Saddleback Valley has great President Andy Borgana still suffering infec tious sting Simitar Andys words Simitar airplane its sickness Finally especially thanks Bill Winter Don Dewey Carl Wheeley Art Schroeder Dick Kidd believed enough print construction articles ventured well beyond expected reader acceptance wife Joan children lived Specifications Wing Area 1500 sq Span 7-2 Weight 20-25 lbs Engine 20-37 RIC Mfg 706 Easton NE. North Canton OH 44721 216-499-5323 A monthly publication covering International RC Soaring Scene $1 6/yr US Canada & Mexico $24/yr elsewhere via airmail Post Office Box 269 Peterborough NH 03458 156 Model Aviation Giant Teat Stand @ $2495 Tatone Products Corp 1209 Geneva Ave San Francisco CA 94112 tel 415/334-7189 New 1/5 Scale Sea Fury Beautiful Stable Flyer Capable AIIArobatlc through new project daily single complaint Truly owe above others too numerous mention acknowledge friendship support help encouragement encounter Mystique Flying Wing Bibliography SaracenRCM April 1976 72-in glider SimitarRCM December 1976 48-in AA Simitar XVMA December 1976 54-in 15 Simitar 540RCM October 1978 50-in 40 Simitar Twin XIVMA April 1980 60-in Twin 19 AstronMA April 1979 32-in X-Wing 15 -19 CentronRCS June 1979 60-in Glider Astron 40RCM November 1979 40-in X-Wing 40 Simitar 61-PMA October 1982 60-in Pattern retracts 60 Simitar DeuceMAN August 1981 54-in 21 Bugs EarMAN March 1982 24-in 020 Simitar 2100MANGiant Steps 1982 100-in 22 lb 90/Quadra Silent SquireRCM February 1975 60-in Slope Thermal Slope SquireRCS January 1977 60-in Slope Low Wing Hot RockMA November 1977 50-in 40 Sport Low Wing Hole CardRCS September 1976 48-in 09 Sport High Wing WinterhawkMA May 1978 100-in Thermal Glider DasherMA October 1978 40-in 25 -35 Sport Low Wing SevilleMA May 1977 80-in Thermal Low Wing Dirt StripperMA November 1980 48-in 19 -40 Sport High Wing CrosswindMA August 1981 72-in 15 Sport Low Wing MaximumRCM September 1982 72-in Thermal Low Wing Practical Slope Flying RCM August 1976 Easy PackerRCM April 1979 Flight Assurance TechniquesRCM August 1978 Properties Foam . anuary February March 1978 Foam CutterMA January 1979 Firewall FinesseMA June 1981 Lightweight FoamMA December 1984 Beautiful & Ugly/Berliner Continued page 86 insist jets really airplanes rather prod ucts impersonal computers True enough hide interesting parts inside blame flying machine behavior its designers well aware risks volved declaring jets among beautiful airplanes shall charge ahead deHavilland Comet air liner magnificent twin-engined racer first true jet airliner enter service suffered insuffi cient engineering merely paved way Boeing 707 make history its simplicity line curves dont look like drawn machines make great shapes air its profitable replacements have engines hanging wings bolted tails Comets engines modestly tucked inside its wings BAc/Arospatiale Concorde worlds successful supersonic FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY March 1985 157 AMERICAN 4JUNIOR 74 Glider sassy little gilder back atruffin Its stuff Per forms delightful stunts balsa 74 features famous A-i Steam Formed Cambered Wing SLEEKURVE Round Edged Fuselage Precise authentic printed detail originals fuselage rudder printed both sides think youll love icau Junior Classic 743-la-l Fun-Pak495PUN 74GiidersingleFus-Pak Au luiiderKit395 404AlmnsfReadyTsFiyKft 595 BoxS48 Oregon CIty 0R97045 See ymr Hstuy Dealer TODAY II ml stock IlIry usy order ills yus ml seder diesl Psnlsge s,d Hmdlig Cheges EISO tsr Ore tOrI usdl PsO pls 1095 15 mob OddIllosal Astounding realism ainabk plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. Darn Good Airmen. complete

NO OCR TEXT NO OCR TEXT ance 12 taper 12-in root 6-in tip worked out produced 72-in span first thought sweep back leading trailing edges However severe sweepbacks such delta model tends fly nose-up slide turns So chose straight leading edge forward tapering trailing edge airfoil decided semi-sym metrical section wide speed range 1% reflex French data steep leading edge entry work turbulator After few tries able draw acceptable root tip tem plates transferred plywood cutting foam wing Since cut seve ral hundred cores Silent Squire Slope Squire no problem new airfoil though taper severe method partially sheeting foam initiated Silent Squire Slope Squire applied new wing lieu split trailing edge system used Nor throp control yaw decided use solid vertical fin no rudder Some sort box required hold radio components short fuselage drawn built appeared no obvious advantage splitting control surfaces mounted trailing edge wing separate inboard elevators outboard ailerons linkage could have problem felt would control instead used elevons function elevators ailerons problem rig elevons could both travel up down gether and/or counter actuate Though some sliding servo systems using grooved rails designed work V-tails found kind unit could bind Saracens spans 48 120 appear picture Sailpianes Slope Thermal Soaring began Simitar series Saracen April 1976 RCM Tracer 40 looks like regular Pattern ship staband flies great front 50-in wing isa K&B 40 MACS muffler Watch out 60 Tracer Pattern Top Gun 4-lb 40-powered 36-in-span package dynamite expert fliers K&B 65 up front veteran pilots suffer weak knees easily could have called Viper taken Battle Star Galactica TV series few years ago Bill Evans mixer has used sizes Simitars 020 2100 Both ser vos slide ply tray 1/o-ln dowels run ning through front rear formers Outer Nyrod slides over dowel ce mented ply tray Right servo aileron left elevator designed sliding tray system using Nyrod tubing A-in dowel eliminate possibility binding final product became Saracen moment truth hand stood holding Saracen position first launch moderate wind pushing up slope signaled good lift Saracen eased space During first 25 feet traveled felt succeeded flew went out control fell brush below What wrong Maybe wouldnt fly Truth matter Sara cen performed like tail-heavy ship set center gravity CG forward normal 30% far enough So added nose weight until ship balanced 1 behind leading edge computes 10% root chord about 14% average chord After CG adjustment check air frame operation radio control surfaces Saracen again pushed off slope What differ ence What pleasure excellent roll control good pitch stability few easy turns Saracen above hill flying like other good Slope Soaring machine just looking different Successive flights involved observing flight characteristics making movies studying afterwards reached several conclusions First flying wing model use practical Control response fast Turns tight could keep front about 30 feet out hill space no 50 feet left right better other ship slope real plus fact Saracen would stall Gradually feeding up-elevator holding full up would result gen tle bobble nose up down fol lowed nosing down about three Du-Bro Mixer also works well control elevons Top receiver next ele vator servo Aileron servo arms attached elevons Installed Simitar 540 author Centron June 1979 RC Sportsman 6O-ln-span Slope Soarer first designs anhedral Looks like bird prey flight Tnuonu ot mu tirum puwuruu nturu u~uuruu mu Aviauon ana leading plans seller several years picture graced ma ouvur Tanya Herbert poses Bugs Ear tiniest Simitars March 1982 ModelAirplane News Specs O2Oengine 11 oz 24-in span Quick loops turns rolls feet leveling off after another 50 feet level flight would another bobble etc explanation flight charac teristics follows Since leading edge wing first part lift ing surface enter flow air will first part surface stall As angle attack wing increased airspeed reduced point reached leading edge wing stalls falls action automat ically reduces angle attack wing thereby preventing full wing stalling principle has test ed times power models takeoff pulling up-elevator stretch ap proach will result normal stall roll-off wing Three weeks after first flight Saracen Saracen II completed second Saracen slightly thicker air foil longer streamlined fuse lage other components remained same Flight tests Saracen II showed achieved intended results improved soaring lighter air better appearance final Saracen featured April 1976 issue RC Modeler Two weeks later Lil Saracen air scaled-down 48-in version Saracen II Lil Saracens have seen darting up down coastal bluffs Pacific CG ship moved forward A-in leading edge five weeks Super Saracen rolled out shop 120-in-span monster taught aspect ratio ef fects roll control somewhat scaled-up Saracen aspect ratio increased 51 101 first launch Super Saracen right out bookstraight out flat no effective roll yaw control elevons working like dive flaps would induce roll just slowed down ship After installing rudder increasing area elevons outboard tips found could manage Continued Page 152 Left This Simitar 09 first multi-engine versions built Dave MacRoberts Flight performance paved way 049 19 60 Simitar Twins Right huge tip plates Alien proved too effective Elevons werent able pro duce satisfactory roll control needs work Evans says Hes wondering answer could add outboard rudders 80 Model Aviation neimiiar ueuce upuaiuuiina olmilarAY uppuaruu ininuugust 1 Oi IWAIV Improve ments include removable low wing trike gear Paulette Evans poses Yosemite Park Simltar 2100 MAN Giant Steps book largest 90s up has 1 00-in span weighs 20 lb Its gentle easiest-to-fly Simitars Shown model Randy Bloomwho pushed Evans designing 2100 version Bi L66gec Scaajo Coupon Worth 5OO OFF Any order $3000 PLAN N PATTERN SETS See ads listings Send $100 refundable brochure over 30 Plan N Pattern Sets WE Technical Services PO Box 76884-A Atlanta Georgia 30328 tion develop effective means reduc ing noise unacceptably limiting performance Such rule would put us much further ahead almostinevitable noise-abatement regulations applied competition flying Give some consideration let know thoughts Richard L Perry 7578 Vogels Way Springfield VA 22153 FLYING NEAR Al RPORTS BE CAREFUL BY LEE TAYLOR MM POJNOER & PRO PH0TOGRAP-ER SUPER two-hour long video cumu lative product TEN YEARS active shooting Festuring 165 LB GRUMMAN GOOSE 16 B-17 16 SPRUCE GOOSE MASTERS CHAMPION SHIPS AMA NATIONALS & MORE Recorded VHS Hi-Grade Video Tape $3495 IcvLIF RESIOENTS S SEND SASE FOR SEND REOI OR MONEY ORDEN E 152 Model Aviation Flying Wings/Evans Continued page 80 turn ship got nose down increase speed After watching movies Super Saracen flight decided slug gishness roll increases aspect ratio increases proven later lOO-in-span powered version 51 aspect ratio excellent roll control may conclude experience aspect ratios below 71 will give satisfactory roll control recommend between 51 61 Due excellent performance Saracen Lil Saracen slope next move develop powered fly ing wing First came Simitar AA version based Lil Saracen Simi tar XV based Saracen put air Flight performance both powered hellions terrific speed either enough make slope flying Saracen seem slow motion comparison can remember test flight of Simitars left bit weak kneed anxiety ending after engine quit things slowed deadstick glide approach touchdown Suc cessive flights proved much less unnerving soon great delight zip around sky full power no throttle control either grab some altitude before engine quit get 5 10 minutes soaring before landing RCM published Simitar construction article Model Aviation published Simitar XV both December 1976 issues Bill Winter editor Model Aviation reported Simitar XV leading plan seller several years 24-in-span TD 020-powered version called Bugs Ear came next 105 oz Cannon Mini system mite rolled like drill Its flying traits very good found would fit easily dashboard Chevy Engine power opposite direction led 23 35 finally Simitar 540first powered K&B 40 K&B 65 75 latter being performance plus Simitar 540 wing Saracens cut 50 Four channels used two slid ing tray control surfaces throttle fourth steerable nose wheel Performance 540 outrageous Vertical climbs can go out sight Con trol response smooth quick easi ly does loops rolls excellent inverted flight Since 540 requires fly its like computer fast obedient idiot Simitar 540 published October 1978 issue RCM would well discuss gear place ment experienced 540 Due lack horizontal stab placing gear impede rotation takeoff make ship stick touchdown took work answer place main gear 1 behind CG set nose wheel height leading edge wing 34 higher trail ing edge ship resting flat surface Also important main gear wheels bent forward rearward about 3 4 oz finger pressure aft tip fin would make nose wheel leave ground gear setup used good results Simitar Sport Simitar Deuce August 1981 Model Airplane News Simitar 61P October 1982 Model Aviation about twin engines first 09 twin followed 19 twin 049 twin 60 twin Simitar XIV published April 1980 issue Model Aviation As might expect great conster nation about danger one-engineout condition twin flying wing sure engine quit would spin dead engine wrong first 09 twin flew just great engineloops rolls etc no problem Having shown twin flying wing practical what next about X-wing first Astron X-wing powered 15 proved Star Wars guys something idea Astron taken Lil Saracen wing published Model p Matched Performance System TOP PERFORMANCE K&B ENGINES 16 AirpIsne 4 Murive K&B FUELS K5B GLOW PLUGS 7 Blendv4 cUvices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Mioo-Eallvvvs FILLER K&B SUPER POXY RESIN K&R SUPER POXY THINNER K&B SUPER POXY PRIMER K&R SUPER POXY PAINT K&B MIXING CUPS PROTECT YOUR RIONT TO FLYt Great footage BEST GIANT SCALE SEAPLANES SPORT FLYING UNUSUAL AIRCRAFT HELICOPTERS & MASTERS SCALE CHAMPIONS ProTechTor THERMO MOLDEDS ROWS ete L FRAMEGREAT GIFTY CC N FOAM FILLED 9512x5 4 * Transmitter ection Case RICE $35 Inclnde Shppcg & Hacdlna x e US CA ce add 6% Send check eEe BERGERON ENTERPRISES ROBERTACA 92632X ntnntee4e2s4tnNOfltfle4t~ 45 thick frost finish perforated nylon best glue grab Minimal ction No binding clicking mold flash exquisite tention detail ends countersunk pin ends bind knuckle smooth operation e fitting pin inimize play vibration flutter Klett hinges worlds highest ality used consistently top fliers Easily installed G Hinge Slotting Kit No 95 RK9-15 Klett Giant Pinned Hinge 15 $369 NEW KLETT PIN-POINT HINGES Simplest possible installation drill two holes apply SUPER JET epoxy Broad gusset web provides visual alignment unlike other barbed hinges stiffly braces hinges against flight loads e fitting pin minimize flutter vibration een barbs give solid anchor glue Silk smooth operation itionally Klett hinges worlds highest quality Used top fliers Recommended leading designers lo 93 RK6-7 Klett Pin-Point Hinge 7 $135 No94 RK6-1 5 Klett Pin-Point Hinge 15 $250 CARL GOLDBERG MODELS INC 4735 West Chicago Avenue e Chicago Illinois 60651A1084 Aviation April 1979 issue 40-sized Astron based Simitar 540 wing took shape published RCM November 1979 Astrons much normal wing area roved very easy handle pecia1 trait Astron 40 ould make fly-by down length runway low speed nose up t 40-degree angle jam throttle md go straight up just wouldnt stall rhere also double X-wing two stron 40s joined tips Flight per ormance both 40s running reat However due fact ngines set 40 apart 80-in pan felt would spin towards dead engine did During construction Astron luestion changing control setup ame up What would happen lower ring rigged ailerons top ring elevators way md out sure try did ound control system wowed ell difference control sponse bit slower levons down-stick nor ial required inverted flight subject inverted flight would good mention flying ing model requires bit down-ele tor elevator keep iverted due fact about up-elevator trim required ormal flight transmitter trim center elevon should set up neutral Again provide airfoil reflex required flight craft inverted normal down-stick required essence re-reflex elevon interested large ships largest Simitar named 2100 has 100-in span weighs 22 lb can powered 90 glow Quadra Simitar 2100 construction article special edition Giant Steps published Model Airplane News easi est-to-fly Simitars 144 sq ft wing makes almost float Continued page 156 r ( _____________AT___ __________ C NO tIPNT CTAI-f T ER THAT WAY March 1985 153 /4 SCALE GIANT SIZE PINNED HINGES Flying Wings/Evans Continued page 153 now twin 60 version 2100 Further experiments have included development Skywalker stretched-fuselage version 540 Skywalker built three sizes 1AA 40 60 variation Skywalker rear-swept-wing version discarded due some tendency fly bit nose-up slide just percepti bly turns As might expected returned original Simitar wing planform no problems AA 40 K&B 60-powered Skywalk ers However severe flutter problems encountered Webra 60 tuned pipe installed additional power pushed pressures over limit servo rods servo torque Several Webra-powered ships destroyed though Simitar 540 powered K&B 75 pumper pushed over 150 mph first experience severe flutter finally corrected using A2-in piano wire pushrod 35 inch-ounce servos measures worked overpowering control sur faces eliminate flutter real answer balance control surfaces 60-size ships both Simitar Skywalker Continued efforts test different fly ing wing designs have included some anhedral Desperado Top Gun emerged Powered K&B 65 MAC muffler absolute animals have outrageous performance roll rate Top Gun must seen believed Since Top Gun smacks Battle Star Viper seemed right have counterpart Cylon result Mien Depending ones point view Alien either worked too well didnt work say latter short huge tip verticals provided stability could overcome alleron control elevons Two test hops resulted straight-out flight no hint roll response launch Alien flew straight out would turn choice cut power use elevator function elevon set down first landing done much surprise little finesse landing second flight planned thus better will require bit effort work out over-stability problem encoun tered Alien written work twin K&B 35 ducted fan Top Gun prog ress waiting three new K&B 7Ss set tail giant Top Gun Current thinking three 75s will give 18 pounds thrust 21 pounder During recent conversation Bill Winter talked developing lightweight Simitar 15 engine slow easy flying may have built-up wing should interest ing will called Simitar Slow Mo tion Editor Bill Winters East Coast version shown Fun column few months ago Droduct review product review product review current wave large 12 four-cycle en gines big two-cycle glow engines has cre ated demand fora durable heavy-dutytesting stand Tatone Products new Giant Test Stand cast aluminum strength good heat dissipation has wide base two slidingadjustable engine support bases designed accommodate size engines up 12 cu displacement engine support bases will become soft engine fuel soaking wooden test stands often Heavy-duty lug pressure pads steel engine restrainihg pins mounting screws included avail able local hobby shop Giant Test Stand can ordered direct Tatone Prod ucts Add $2 postage handling California residents add 6% sales tax limit saga must continue search Acknowledgements First thanks readers have written phoned let know about experi ences especially Simitar interest participation make effort worthwhile provide encouragement name Bill Braatz Indiana comes mind learned fly Control Line together Bill turned onto flying wings offering challenge build fly Wayne Sakamato Master-class flier Pattern cut teeth Sara cen first power plane Simitar XV Wayne still takes time out year attend win 540 Northrop flying Wing contest Randy Bloom San Clemente CA began RC efforts Simitar continued whole line through Top Gun Randy pushed design 2100 built first Dave Herbert Capistrano CA has blessed X-Wing Madness won Astron 40 MultiWing Nationals 1979 Frank Johnson will build fly thing went far build Dou ble X-Wing Seeing air sight behold John Ludwig No 1 Skywalker pilot Bishop CA Skywalkers seem everlasting Gus Morfis turned countless sketches completed ships super drawings make construction articles reality support Skynauts Saddleback Valley has great President Andy Borgana still suffering infec tious sting Simitar Andys words Simitar airplane its sickness Finally especially thanks Bill Winter Don Dewey Carl Wheeley Art Schroeder Dick Kidd believed enough print construction articles ventured well beyond expected reader acceptance wife Joan children lived Specifications Wing Area 1500 sq Span 7-2 Weight 20-25 lbs Engine 20-37 RIC Mfg 706 Easton NE. North Canton OH 44721 216-499-5323 A monthly publication covering International RC Soaring Scene $1 6/yr US Canada & Mexico $24/yr elsewhere via airmail Post Office Box 269 Peterborough NH 03458 156 Model Aviation Giant Teat Stand @ $2495 Tatone Products Corp 1209 Geneva Ave San Francisco CA 94112 tel 415/334-7189 New 1/5 Scale Sea Fury Beautiful Stable Flyer Capable AIIArobatlc through new project daily single complaint Truly owe above others too numerous mention acknowledge friendship support help encouragement encounter Mystique Flying Wing Bibliography SaracenRCM April 1976 72-in glider SimitarRCM December 1976 48-in AA Simitar XVMA December 1976 54-in 15 Simitar 540RCM October 1978 50-in 40 Simitar Twin XIVMA April 1980 60-in Twin 19 AstronMA April 1979 32-in X-Wing 15 -19 CentronRCS June 1979 60-in Glider Astron 40RCM November 1979 40-in X-Wing 40 Simitar 61-PMA October 1982 60-in Pattern retracts 60 Simitar DeuceMAN August 1981 54-in 21 Bugs EarMAN March 1982 24-in 020 Simitar 2100MANGiant Steps 1982 100-in 22 lb 90/Quadra Silent SquireRCM February 1975 60-in Slope Thermal Slope SquireRCS January 1977 60-in Slope Low Wing Hot RockMA November 1977 50-in 40 Sport Low Wing Hole CardRCS September 1976 48-in 09 Sport High Wing WinterhawkMA May 1978 100-in Thermal Glider DasherMA October 1978 40-in 25 -35 Sport Low Wing SevilleMA May 1977 80-in Thermal Low Wing Dirt StripperMA November 1980 48-in 19 -40 Sport High Wing CrosswindMA August 1981 72-in 15 Sport Low Wing MaximumRCM September 1982 72-in Thermal Low Wing Practical Slope Flying RCM August 1976 Easy PackerRCM April 1979 Flight Assurance TechniquesRCM August 1978 Properties Foam . anuary February March 1978 Foam CutterMA January 1979 Firewall FinesseMA June 1981 Lightweight FoamMA December 1984 Beautiful & Ugly/Berliner Continued page 86 insist jets really airplanes rather prod ucts impersonal computers True enough hide interesting parts inside blame flying machine behavior its designers well aware risks volved declaring jets among beautiful airplanes shall charge ahead deHavilland Comet air liner magnificent twin-engined racer first true jet airliner enter service suffered insuffi cient engineering merely paved way Boeing 707 make history its simplicity line curves dont look like drawn machines make great shapes air its profitable replacements have engines hanging wings bolted tails Comets engines modestly tucked inside its wings BAc/Arospatiale Concorde worlds successful supersonic FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY March 1985 157 AMERICAN 4JUNIOR 74 Glider sassy little gilder back atruffin Its stuff Per forms delightful stunts balsa 74 features famous A-i Steam Formed Cambered Wing SLEEKURVE Round Edged Fuselage Precise authentic printed detail originals fuselage rudder printed both sides think youll love icau Junior Classic 743-la-l Fun-Pak495PUN 74GiidersingleFus-Pak Au luiiderKit395 404AlmnsfReadyTsFiyKft 595 BoxS48 Oregon CIty 0R97045 See ymr Hstuy Dealer TODAY II ml stock IlIry usy order ills yus ml seder diesl Psnlsge s,d Hmdlig Cheges EISO tsr Ore tOrI usdl PsO pls 1095 15 mob OddIllosal Astounding realism ainabk plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. Darn Good Airmen. complete

NO OCR TEXT NO OCR TEXT ance 12 taper 12-in root 6-in tip worked out produced 72-in span first thought sweep back leading trailing edges However severe sweepbacks such delta model tends fly nose-up slide turns So chose straight leading edge forward tapering trailing edge airfoil decided semi-sym metrical section wide speed range 1% reflex French data steep leading edge entry work turbulator After few tries able draw acceptable root tip tem plates transferred plywood cutting foam wing Since cut seve ral hundred cores Silent Squire Slope Squire no problem new airfoil though taper severe method partially sheeting foam initiated Silent Squire Slope Squire applied new wing lieu split trailing edge system used Nor throp control yaw decided use solid vertical fin no rudder Some sort box required hold radio components short fuselage drawn built appeared no obvious advantage splitting control surfaces mounted trailing edge wing separate inboard elevators outboard ailerons linkage could have problem felt would control instead used elevons function elevators ailerons problem rig elevons could both travel up down gether and/or counter actuate Though some sliding servo systems using grooved rails designed work V-tails found kind unit could bind Saracens spans 48 120 appear picture Sailpianes Slope Thermal Soaring began Simitar series Saracen April 1976 RCM Tracer 40 looks like regular Pattern ship staband flies great front 50-in wing isa K&B 40 MACS muffler Watch out 60 Tracer Pattern Top Gun 4-lb 40-powered 36-in-span package dynamite expert fliers K&B 65 up front veteran pilots suffer weak knees easily could have called Viper taken Battle Star Galactica TV series few years ago Bill Evans mixer has used sizes Simitars 020 2100 Both ser vos slide ply tray 1/o-ln dowels run ning through front rear formers Outer Nyrod slides over dowel ce mented ply tray Right servo aileron left elevator designed sliding tray system using Nyrod tubing A-in dowel eliminate possibility binding final product became Saracen moment truth hand stood holding Saracen position first launch moderate wind pushing up slope signaled good lift Saracen eased space During first 25 feet traveled felt succeeded flew went out control fell brush below What wrong Maybe wouldnt fly Truth matter Sara cen performed like tail-heavy ship set center gravity CG forward normal 30% far enough So added nose weight until ship balanced 1 behind leading edge computes 10% root chord about 14% average chord After CG adjustment check air frame operation radio control surfaces Saracen again pushed off slope What differ ence What pleasure excellent roll control good pitch stability few easy turns Saracen above hill flying like other good Slope Soaring machine just looking different Successive flights involved observing flight characteristics making movies studying afterwards reached several conclusions First flying wing model use practical Control response fast Turns tight could keep front about 30 feet out hill space no 50 feet left right better other ship slope real plus fact Saracen would stall Gradually feeding up-elevator holding full up would result gen tle bobble nose up down fol lowed nosing down about three Du-Bro Mixer also works well control elevons Top receiver next ele vator servo Aileron servo arms attached elevons Installed Simitar 540 author Centron June 1979 RC Sportsman 6O-ln-span Slope Soarer first designs anhedral Looks like bird prey flight Tnuonu ot mu tirum puwuruu nturu u~uuruu mu Aviauon ana leading plans seller several years picture graced ma ouvur Tanya Herbert poses Bugs Ear tiniest Simitars March 1982 ModelAirplane News Specs O2Oengine 11 oz 24-in span Quick loops turns rolls feet leveling off after another 50 feet level flight would another bobble etc explanation flight charac teristics follows Since leading edge wing first part lift ing surface enter flow air will first part surface stall As angle attack wing increased airspeed reduced point reached leading edge wing stalls falls action automat ically reduces angle attack wing thereby preventing full wing stalling principle has test ed times power models takeoff pulling up-elevator stretch ap proach will result normal stall roll-off wing Three weeks after first flight Saracen Saracen II completed second Saracen slightly thicker air foil longer streamlined fuse lage other components remained same Flight tests Saracen II showed achieved intended results improved soaring lighter air better appearance final Saracen featured April 1976 issue RC Modeler Two weeks later Lil Saracen air scaled-down 48-in version Saracen II Lil Saracens have seen darting up down coastal bluffs Pacific CG ship moved forward A-in leading edge five weeks Super Saracen rolled out shop 120-in-span monster taught aspect ratio ef fects roll control somewhat scaled-up Saracen aspect ratio increased 51 101 first launch Super Saracen right out bookstraight out flat no effective roll yaw control elevons working like dive flaps would induce roll just slowed down ship After installing rudder increasing area elevons outboard tips found could manage Continued Page 152 Left This Simitar 09 first multi-engine versions built Dave MacRoberts Flight performance paved way 049 19 60 Simitar Twins Right huge tip plates Alien proved too effective Elevons werent able pro duce satisfactory roll control needs work Evans says Hes wondering answer could add outboard rudders 80 Model Aviation neimiiar ueuce upuaiuuiina olmilarAY uppuaruu ininuugust 1 Oi IWAIV Improve ments include removable low wing trike gear Paulette Evans poses Yosemite Park Simltar 2100 MAN Giant Steps book largest 90s up has 1 00-in span weighs 20 lb Its gentle easiest-to-fly Simitars Shown model Randy Bloomwho pushed Evans designing 2100 version Bi L66gec Scaajo Coupon Worth 5OO OFF Any order $3000 PLAN N PATTERN SETS See ads listings Send $100 refundable brochure over 30 Plan N Pattern Sets WE Technical Services PO Box 76884-A Atlanta Georgia 30328 tion develop effective means reduc ing noise unacceptably limiting performance Such rule would put us much further ahead almostinevitable noise-abatement regulations applied competition flying Give some consideration let know thoughts Richard L Perry 7578 Vogels Way Springfield VA 22153 FLYING NEAR Al RPORTS BE CAREFUL BY LEE TAYLOR MM POJNOER & PRO PH0TOGRAP-ER SUPER two-hour long video cumu lative product TEN YEARS active shooting Festuring 165 LB GRUMMAN GOOSE 16 B-17 16 SPRUCE GOOSE MASTERS CHAMPION SHIPS AMA NATIONALS & MORE Recorded VHS Hi-Grade Video Tape $3495 IcvLIF RESIOENTS S SEND SASE FOR SEND REOI OR MONEY ORDEN E 152 Model Aviation Flying Wings/Evans Continued page 80 turn ship got nose down increase speed After watching movies Super Saracen flight decided slug gishness roll increases aspect ratio increases proven later lOO-in-span powered version 51 aspect ratio excellent roll control may conclude experience aspect ratios below 71 will give satisfactory roll control recommend between 51 61 Due excellent performance Saracen Lil Saracen slope next move develop powered fly ing wing First came Simitar AA version based Lil Saracen Simi tar XV based Saracen put air Flight performance both powered hellions terrific speed either enough make slope flying Saracen seem slow motion comparison can remember test flight of Simitars left bit weak kneed anxiety ending after engine quit things slowed deadstick glide approach touchdown Suc cessive flights proved much less unnerving soon great delight zip around sky full power no throttle control either grab some altitude before engine quit get 5 10 minutes soaring before landing RCM published Simitar construction article Model Aviation published Simitar XV both December 1976 issues Bill Winter editor Model Aviation reported Simitar XV leading plan seller several years 24-in-span TD 020-powered version called Bugs Ear came next 105 oz Cannon Mini system mite rolled like drill Its flying traits very good found would fit easily dashboard Chevy Engine power opposite direction led 23 35 finally Simitar 540first powered K&B 40 K&B 65 75 latter being performance plus Simitar 540 wing Saracens cut 50 Four channels used two slid ing tray control surfaces throttle fourth steerable nose wheel Performance 540 outrageous Vertical climbs can go out sight Con trol response smooth quick easi ly does loops rolls excellent inverted flight Since 540 requires fly its like computer fast obedient idiot Simitar 540 published October 1978 issue RCM would well discuss gear place ment experienced 540 Due lack horizontal stab placing gear impede rotation takeoff make ship stick touchdown took work answer place main gear 1 behind CG set nose wheel height leading edge wing 34 higher trail ing edge ship resting flat surface Also important main gear wheels bent forward rearward about 3 4 oz finger pressure aft tip fin would make nose wheel leave ground gear setup used good results Simitar Sport Simitar Deuce August 1981 Model Airplane News Simitar 61P October 1982 Model Aviation about twin engines first 09 twin followed 19 twin 049 twin 60 twin Simitar XIV published April 1980 issue Model Aviation As might expect great conster nation about danger one-engineout condition twin flying wing sure engine quit would spin dead engine wrong first 09 twin flew just great engineloops rolls etc no problem Having shown twin flying wing practical what next about X-wing first Astron X-wing powered 15 proved Star Wars guys something idea Astron taken Lil Saracen wing published Model p Matched Performance System TOP PERFORMANCE K&B ENGINES 16 AirpIsne 4 Murive K&B FUELS K5B GLOW PLUGS 7 Blendv4 cUvices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Mioo-Eallvvvs FILLER K&B SUPER POXY RESIN K&R SUPER POXY THINNER K&B SUPER POXY PRIMER K&R SUPER POXY PAINT K&B MIXING CUPS PROTECT YOUR RIONT TO FLYt Great footage BEST GIANT SCALE SEAPLANES SPORT FLYING UNUSUAL AIRCRAFT HELICOPTERS & MASTERS SCALE CHAMPIONS ProTechTor THERMO MOLDEDS ROWS ete L FRAMEGREAT GIFTY CC N FOAM FILLED 9512x5 4 * Transmitter ection Case RICE $35 Inclnde Shppcg & Hacdlna x e US CA ce add 6% Send check eEe BERGERON ENTERPRISES ROBERTACA 92632X ntnntee4e2s4tnNOfltfle4t~ 45 thick frost finish perforated nylon best glue grab Minimal ction No binding clicking mold flash exquisite tention detail ends countersunk pin ends bind knuckle smooth operation e fitting pin inimize play vibration flutter Klett hinges worlds highest ality used consistently top fliers Easily installed G Hinge Slotting Kit No 95 RK9-15 Klett Giant Pinned Hinge 15 $369 NEW KLETT PIN-POINT HINGES Simplest possible installation drill two holes apply SUPER JET epoxy Broad gusset web provides visual alignment unlike other barbed hinges stiffly braces hinges against flight loads e fitting pin minimize flutter vibration een barbs give solid anchor glue Silk smooth operation itionally Klett hinges worlds highest quality Used top fliers Recommended leading designers lo 93 RK6-7 Klett Pin-Point Hinge 7 $135 No94 RK6-1 5 Klett Pin-Point Hinge 15 $250 CARL GOLDBERG MODELS INC 4735 West Chicago Avenue e Chicago Illinois 60651A1084 Aviation April 1979 issue 40-sized Astron based Simitar 540 wing took shape published RCM November 1979 Astrons much normal wing area roved very easy handle pecia1 trait Astron 40 ould make fly-by down length runway low speed nose up t 40-degree angle jam throttle md go straight up just wouldnt stall rhere also double X-wing two stron 40s joined tips Flight per ormance both 40s running reat However due fact ngines set 40 apart 80-in pan felt would spin towards dead engine did During construction Astron luestion changing control setup ame up What would happen lower ring rigged ailerons top ring elevators way md out sure try did ound control system wowed ell difference control sponse bit slower levons down-stick nor ial required inverted flight subject inverted flight would good mention flying ing model requires bit down-ele tor elevator keep iverted due fact about up-elevator trim required ormal flight transmitter trim center elevon should set up neutral Again provide airfoil reflex required flight craft inverted normal down-stick required essence re-reflex elevon interested large ships largest Simitar named 2100 has 100-in span weighs 22 lb can powered 90 glow Quadra Simitar 2100 construction article special edition Giant Steps published Model Airplane News easi est-to-fly Simitars 144 sq ft wing makes almost float Continued page 156 r ( _____________AT___ __________ C NO tIPNT CTAI-f T ER THAT WAY March 1985 153 /4 SCALE GIANT SIZE PINNED HINGES Flying Wings/Evans Continued page 153 now twin 60 version 2100 Further experiments have included development Skywalker stretched-fuselage version 540 Skywalker built three sizes 1AA 40 60 variation Skywalker rear-swept-wing version discarded due some tendency fly bit nose-up slide just percepti bly turns As might expected returned original Simitar wing planform no problems AA 40 K&B 60-powered Skywalk ers However severe flutter problems encountered Webra 60 tuned pipe installed additional power pushed pressures over limit servo rods servo torque Several Webra-powered ships destroyed though Simitar 540 powered K&B 75 pumper pushed over 150 mph first experience severe flutter finally corrected using A2-in piano wire pushrod 35 inch-ounce servos measures worked overpowering control sur faces eliminate flutter real answer balance control surfaces 60-size ships both Simitar Skywalker Continued efforts test different fly ing wing designs have included some anhedral Desperado Top Gun emerged Powered K&B 65 MAC muffler absolute animals have outrageous performance roll rate Top Gun must seen believed Since Top Gun smacks Battle Star Viper seemed right have counterpart Cylon result Mien Depending ones point view Alien either worked too well didnt work say latter short huge tip verticals provided stability could overcome alleron control elevons Two test hops resulted straight-out flight no hint roll response launch Alien flew straight out would turn choice cut power use elevator function elevon set down first landing done much surprise little finesse landing second flight planned thus better will require bit effort work out over-stability problem encoun tered Alien written work twin K&B 35 ducted fan Top Gun prog ress waiting three new K&B 7Ss set tail giant Top Gun Current thinking three 75s will give 18 pounds thrust 21 pounder During recent conversation Bill Winter talked developing lightweight Simitar 15 engine slow easy flying may have built-up wing should interest ing will called Simitar Slow Mo tion Editor Bill Winters East Coast version shown Fun column few months ago Droduct review product review product review current wave large 12 four-cycle en gines big two-cycle glow engines has cre ated demand fora durable heavy-dutytesting stand Tatone Products new Giant Test Stand cast aluminum strength good heat dissipation has wide base two slidingadjustable engine support bases designed accommodate size engines up 12 cu displacement engine support bases will become soft engine fuel soaking wooden test stands often Heavy-duty lug pressure pads steel engine restrainihg pins mounting screws included avail able local hobby shop Giant Test Stand can ordered direct Tatone Prod ucts Add $2 postage handling California residents add 6% sales tax limit saga must continue search Acknowledgements First thanks readers have written phoned let know about experi ences especially Simitar interest participation make effort worthwhile provide encouragement name Bill Braatz Indiana comes mind learned fly Control Line together Bill turned onto flying wings offering challenge build fly Wayne Sakamato Master-class flier Pattern cut teeth Sara cen first power plane Simitar XV Wayne still takes time out year attend win 540 Northrop flying Wing contest Randy Bloom San Clemente CA began RC efforts Simitar continued whole line through Top Gun Randy pushed design 2100 built first Dave Herbert Capistrano CA has blessed X-Wing Madness won Astron 40 MultiWing Nationals 1979 Frank Johnson will build fly thing went far build Dou ble X-Wing Seeing air sight behold John Ludwig No 1 Skywalker pilot Bishop CA Skywalkers seem everlasting Gus Morfis turned countless sketches completed ships super drawings make construction articles reality support Skynauts Saddleback Valley has great President Andy Borgana still suffering infec tious sting Simitar Andys words Simitar airplane its sickness Finally especially thanks Bill Winter Don Dewey Carl Wheeley Art Schroeder Dick Kidd believed enough print construction articles ventured well beyond expected reader acceptance wife Joan children lived Specifications Wing Area 1500 sq Span 7-2 Weight 20-25 lbs Engine 20-37 RIC Mfg 706 Easton NE. North Canton OH 44721 216-499-5323 A monthly publication covering International RC Soaring Scene $1 6/yr US Canada & Mexico $24/yr elsewhere via airmail Post Office Box 269 Peterborough NH 03458 156 Model Aviation Giant Teat Stand @ $2495 Tatone Products Corp 1209 Geneva Ave San Francisco CA 94112 tel 415/334-7189 New 1/5 Scale Sea Fury Beautiful Stable Flyer Capable AIIArobatlc through new project daily single complaint Truly owe above others too numerous mention acknowledge friendship support help encouragement encounter Mystique Flying Wing Bibliography SaracenRCM April 1976 72-in glider SimitarRCM December 1976 48-in AA Simitar XVMA December 1976 54-in 15 Simitar 540RCM October 1978 50-in 40 Simitar Twin XIVMA April 1980 60-in Twin 19 AstronMA April 1979 32-in X-Wing 15 -19 CentronRCS June 1979 60-in Glider Astron 40RCM November 1979 40-in X-Wing 40 Simitar 61-PMA October 1982 60-in Pattern retracts 60 Simitar DeuceMAN August 1981 54-in 21 Bugs EarMAN March 1982 24-in 020 Simitar 2100MANGiant Steps 1982 100-in 22 lb 90/Quadra Silent SquireRCM February 1975 60-in Slope Thermal Slope SquireRCS January 1977 60-in Slope Low Wing Hot RockMA November 1977 50-in 40 Sport Low Wing Hole CardRCS September 1976 48-in 09 Sport High Wing WinterhawkMA May 1978 100-in Thermal Glider DasherMA October 1978 40-in 25 -35 Sport Low Wing SevilleMA May 1977 80-in Thermal Low Wing Dirt StripperMA November 1980 48-in 19 -40 Sport High Wing CrosswindMA August 1981 72-in 15 Sport Low Wing MaximumRCM September 1982 72-in Thermal Low Wing Practical Slope Flying RCM August 1976 Easy PackerRCM April 1979 Flight Assurance TechniquesRCM August 1978 Properties Foam . anuary February March 1978 Foam CutterMA January 1979 Firewall FinesseMA June 1981 Lightweight FoamMA December 1984 Beautiful & Ugly/Berliner Continued page 86 insist jets really airplanes rather prod ucts impersonal computers True enough hide interesting parts inside blame flying machine behavior its designers well aware risks volved declaring jets among beautiful airplanes shall charge ahead deHavilland Comet air liner magnificent twin-engined racer first true jet airliner enter service suffered insuffi cient engineering merely paved way Boeing 707 make history its simplicity line curves dont look like drawn machines make great shapes air its profitable replacements have engines hanging wings bolted tails Comets engines modestly tucked inside its wings BAc/Arospatiale Concorde worlds successful supersonic FLYING NEAR AIRPORTS BE CAREFUL PROTECT YOUR RIGHT TO FLY March 1985 157 AMERICAN 4JUNIOR 74 Glider sassy little gilder back atruffin Its stuff Per forms delightful stunts balsa 74 features famous A-i Steam Formed Cambered Wing SLEEKURVE Round Edged Fuselage Precise authentic printed detail originals fuselage rudder printed both sides think youll love icau Junior Classic 743-la-l Fun-Pak495PUN 74GiidersingleFus-Pak Au luiiderKit395 404AlmnsfReadyTsFiyKft 595 BoxS48 Oregon CIty 0R97045 See ymr Hstuy Dealer TODAY II ml stock IlIry usy order ills yus ml seder diesl Psnlsge s,d Hmdlig Cheges EISO tsr Ore tOrI usdl PsO pls 1095 15 mob OddIllosal Astounding realism ainabk plastics.. Very light weight discriminating hobbiest. Either Pilot version kit.. Sportsman Barnstormer.. Darn Good Airmen. complete