Model These?

Considered successful radical home-builts John Dykes JD-2 double delta four-place 180-hp Lycoming Spanning 22 feet cruises 170 can stretch out 190 hpnot bad performance single delta already well tried modelers home-built crowd keeps DYKE DEL TA U 0123456 C Fihaq coming up odd proven aircraft appeal modelers wish try something different Don Berliner THE SIGN side pretty air plane 2 block letters says Experi mental exactly what does mean because airplane brain child some mad genius basement full bubbling test tubes simply end result some bureaucrats redtape machine airplanewhether absolute ly standard type home-built can seen greater numbers some factory-built planes truly original design encompasses bunch radical ideasmust decorated Experimental order meet rules Federal bureaucracy Gov ernment its either fully tested certi fled production craft its Experimental its latter has sign warning anyone might enter Just experimental depends builder involved amateurairplane-building hobby nature goals Some airplanes built home because factory-built airplane would too expensive Others built because builder just likes build things airplane much teresting project another bookcase Still others built home because no factory airplane meets builders very 18 Model Aviation ese special needs few built because head designer/builder simply bursting unusual ideas can tried out genuinely Experimen tal flying machine give devil its due Federal Aviation Agency places fewer restrictions design construction use home-built airplanes does com parable agency other countrys gov ernment As long airplane built accepted standards using aircraft-quality materials used educational recreational purposes Feds wont get way true creativity fact dont have anything say about design home-built airplane some pilot willing risk neck flying airplane probably shouldnt leave ground thats business cause its neck course before hes allowed carry passengers take trip airplane must tested least 50 hours show flyable rea sonably safe fly weird-looking thing just takes eager pilot solid airframe Because scarcity foolhardy pilots airplane builders willing risk four five years work long shot chance success havent bad designs 20 years Experimental Aircraft Asso ciation have fair number radical designs created men women FAA percentage air planes having major new ideas has never very great now home-builts flying just 1% would amount lot unusual aircraft currently 4500 amateur-built aircraft licensed US double num ber active airliners turn page VA RIVIGGEN czccIzzzD LU 7Th 0123456 SCALE 1/4 J II February 1976 19 Burt Rutans Variviggen variation delta theme exemplified Swedish SAAB Viggen Mach-2 fighter canard-delta combo stable model real plane cannot spinor stahl Model Two major factors have combined keep supply radical home-builts down great time required design build test prove novel aircraft very special skills demanded such project thousands men wom en capable building airplane well-drawn set plans relatively few have engineering training and/or natural talent needed create something unique will leave ground return same condition balanced out against draw backs splendid opportunity experi ment minimum cost mini mum fuss No wind tunnels no computers no thick hooks government foundation specifications met Just take idea convert wood metal fiberglass take off Probably person has built airplane has given least idle thought creating something truly different An air plane shaped unlike anything fore thus should fly better faster economically pro duced greatest minds aviation history few hundred ideas have gotten far a drawing board before reality took over Scores have gotten shop doens have rolled out shop well way fame failure have actually flown sometimes much better comparable airplanes know few herein presented edification amuse ment collection no means tended complete Rather sampling creativity amateur air plane designers perhaps look future small manned aircraft Dyke Delta Delta-wings good Mach-2 air planes like Concorde SST N4ach-02 aircraft like hang gliders arent supposed particu lar value between extremes clear-cut challenge plus undeniably teresting appearance triangular air plane has spurred designer Mach-2 airplanes Actually double-delta diamond shape John Dykes JD-2 successful radical-design home builts just about native Amer ican four-place airplane available form construction drawings Rather being one-only wild idea gener ally seen family airplane combining good performance such practical con cepts folding wings looks guaran teed draw crowd airport stop Contrary reputation highspeed deltas have earned high landing take-off speeds steep attitudes Dyke flies pretty much like conventional airplane 20 Model Aviation Already sensation world Iightplanes Rutans Varieze reduces tip vortice drag its use Whitcomb Winglets tips will carry two people luggage 1000 miles modified Volkswagen engine developing 62 hp covers 70 miles per fuel gallon VA RIEZE 0123456 SCALE 1/4 Ed CFlha may easiest airplane build loaded strangely-shaped parts construction welded steel tubing covered fiberglass just like alot airplanes ordinary shapes Powered standard 180-hp Lycoming engine will cruise 170 mph top out 190 mph land about 70 mph Cruis ing range 75% power 700 miles service ceiling 14000 feet Dyke Delta has wingspan 22 feet length 19 feet height 6 feet wing area 180 sq ft Empty weight 1000 lbs gross weight 1750 lbs will carry 41 gallons fuel An informa tion packet $3 full plans $125 J Dyke 2840 Old Yellow Springs Road Fairborn Ohio 45234 VariViggen Another variation delta theme Burt Rutans two-seat VariViggen based sensational-performing Swedish SAAB Viggen Mach-2 fighter Like big fast Rutans home-built canard-delta thats about end similarity turbojet Viggen designed maximum performance VariViggen shines brightest low end speed range Its handling character istics slow 50 mph truly remark able Rutans demonstrations maneu verability low speed air shows sure winner VariViggen looks like designed high speed testbed some true improvements breed stall/spin accidents still major cause lightplane fatalities Rutan has created airplane will stall will mush climb 50 mph control stick way back same speed will make steeply-banked turns buffeting wont stall wont spin Construction conventional requiring use standard workshop tools few doubly-curved parts fiberglass produced Rutan Z277 MINI IMP 456 SCALE 1/4 1 F4Cfhe February 1976 21 Pusher propdriven Flexidyne shaft its buried 64-hp Limbach modification Volks wagen engineand ultra-ultra streamlining give Molt Taylors Mini-Imp estimated cruising speed 150 mph Would interesting see performs RC pattern airplane Model builders prototype flying several years now has 150-hp Lycoming engine giving top speed 165 mph cruising speed 150 mph rate climb sea level close 1000 ft/min landing distance mere 400 ft VariViggen has wingspan 19 feet canard span of8 feet length 19 11 height 6 2 wing area 119 sq ft canard area 183 sq ft Emp ty weight 950 lbs gross weight 1700 lbs 25-page technical report $9 report complete plans $51 Rutan Aircraft Factory PO Box 656 Mojave Calif 93501 VariEze newest flying machine emerge Rutan Factory also promising small aircraft appear years lives up its designers claims VariEze could quickly become very important factor world light airplanes So far indications will just about what has claimed VariEze true canard thin swept wing rear its horizontal tail up front rudders mounted Whitcomb Winglets out wing tips thus reducing induced drag tip vortices actually creating less drag conventional tail surfaces per formance good Rutan says some small part explanation will unusually low weight390 lbs empty airplane will carry two people baggage fuel 1000 miles flying Construction far conventional airframe being molded composite glass rigid foam core wing span VariEze 19 10 length 14 3 Normal gross weight 890 lbs giving payload 500 lbs far above empty weight As performance Burt Rutan says little canard has already demonstrated 135 mph cruising speed 30% power gallon gas 70 miles flown says will achieve 48 miles per gallon 185 mph 75% power powered 62-hp modified Volkswagen engine Rate climb according pre liminary estimates 2000 ft/min just pilot board 1200 ft/min passenger full load fuel baggage accuracy figures should soon made clear Rutan plans attack record book going Class Cia take-off weight under 500 kg/ 1102 lbs marks straight-line distance closed-circuit distance speed 1000 2000 km An information packet available $5 same source Van Viggen Mini-Imp another prolific de signers small aircraftMolt Taylor comes another high-performance very streamlined little VW-powered machine Mini-Imp father newcomer veteran comes developing novel airplanes being responsible flying car produced limited quantity Aerocar con tinued page 72 22 Model Aviation Off go wild blue yonderl Emmett Tallys Birdman weighs 100 pounds covered aircraft Mylar Stalls lands 18 mph takes off 75 feet rolls stop 15 engine two-cycle developing 15 hp Looks like model real plane Pictures Stouffers Photo Service B/RDMA N TL- / 7 0123456 SCALE 1/4 EcJ e F0R FUN FLYING FLOATER IS HARD TO BEAT can now report flying experience FLOATER Since am sport flyer rather contest entrant cant tell great contest successes However fun flying FLOATER hard beat has outclimbed out flown just about everythingat local field have lost trackof number of approximately half hour flights have have two 2 hour flights evening first impression first test flight what delightful handling characteristics has flown some violent thermal conditions yet docile enough am using toteach eight year old son fly FLOATER flyer Bellevue Wash Wing Load$45O 7 3 ozlsqft Flat Bot NACA 6409 RC Soaring/Pruss continued page 16 perfect score scale fidelity flying proven 1975 LSF Tournament Ken Wagner not-so-museum-like Libelle took top honors Dont misled Kens efforts resulted beautiful plane just wasnt Gier Hall Pearson Thacker school detailing guy said asked wasnt difficult task making wheel chair trained flea act putting play Man Came Dinner No putting tiny ball bear ings wheels should realized soaring other aspects modeling certain individuals gather much pleasure building seeing perform craftsmen produce might enjoy shortcoming efforts much detail evaluated takes scru tinizing eyes competent judges breed found sailplane gathering As result largest contests can provide elite group sailplane builders turn tends further refine art reduce number entries capable turning Out model less years time Last July suggestion made NSS Board Directors meeting encour age simple formula scale competi tion suggestion eventwithout long drawn out rules wranglefor scale whereby club holding sailplane contest could also have event scale PEANUT SCALE I __ PLANS ACCESSORIES IComplete catalog 50f OX 2498-AM LA MESA cAIJF 9204t dealer direct Postpaid Send Stamp Literature ii/scfl Box 135 North ridge Cal 91324 Chet Tuthill Tullahoma Tenn came up set proposed rules surely worth trying suggestions I Number Models contestant will allowed entry RC Sport Scale addition entry may make other sailplane competition during same contest same plane may entered event however flight per round will allowed score round being applied both events contestant enters plane scale another plane regular competition will fly both planes task However points achieved scale sailplane will apply scale event points other plane will apply toward regu lar competition score 2 Special Contest Consideration con test size ie number contestants and/or size sponsoring organization make advisable aircraft entered Sport Scale category may required fly dur ing rounds regular competition contestant has also entered model regular competition shall allowed two flights per round model discretion Contest Director contestant entered Sport Scale category may required fly rounds event Sport Scale en trants will given opportunity fly during same rounds pre-contest announcements shall stipulate Sport Scale flown along regular com petition rounds 3 Proof Scale prove model re sembles particular prototype some proof scale material required a Proof Scale responsibility contestant b To eligible Accuracy Outline points published three-view drawing line tone color selection photos aircraft modeled sufficient show outlines aircraft side view front view plan view required three-view available some photos airplane very useful judges should provided possible c To eligible Finish Color Markings points some proof color scheme used required can photo some other pictorial presentation magazine cover painting IPMS color diagram plastic kit coloring guide etc detailed written description reli able source Profile similar publica tion ideal proof both outline color scheme d If no proof scale material accom panies model Craftmanship Flight points may awarded 4 Static Judging a Static judging shall done dis tance 20 feet model rec ommended 40 diameter circle laid out roped off model placed center judging judges free circle model rope guide 20 viewing distance b Details deemed visible flight considered scoring model 5 Static Scoring 100 point maximum may earned follows Accuracy Outline General ImpressionMax 40 pts CraftsmanshipMax 30 pts Finish Color & MarkingsMax 30 pts 6 Bonus Points 10 points bonus shall awarded contestant model entered own design As proof con testant should include construction drawings scale presentation Presently scale sailplanes market would fit Tuthills proposal Soarcrafts Windspiels lines scale kits surely can considered Most models glass types go together straight forward manner advanced course creative chronography isnt re quired other imported kits also meet Tuthills proposal As club contest hold Stand Off Scale contest Building scale model could worthwhile winter project Shortlines LSF cross-country work open top vehicle isnt availablea technique found successful Plan flight usually drifting downwind thermal goal head back upwind return mind have car ready go downwind direction Predetermine will drive act witnesses As flight develops after launch fly plane favoring side car will sitting Get carthe window should rolled down can maneuver transmitter antennawhile plane still comfort able distance begin follow goal goal get Out car steer plane proper return courseagain relative will sitting proceed before. . next contest provide 15meter circle inside 30-meter circle Award points see fit circles provide stant reference working LSF Levels II Ray Hayes LOFT tried recent contesthad good results w heav ier spars1/s X 3/s new Soarcraft Magnum 12 spars much heavier tbos prototype models Overall wing quite bit beefier should withstand midwest type launches w towhook called Fly Hook Glider Guiders Phoenix Arizona Hook fully adjustable heavy steel rod lightweight aring clubs send have club secretary club name addresson postcard include number members club Mail Dan Pruss Box 490 Plainfield IL 60544 70 Model Aviation Span 110 Length 48 Area 6sq ft FISwl6 OZ Wing II OZ Semco manufactoes me, 280 accessoes fo modeling Sand 25 cents today fo catalog descehing pet L ENGINEERING INC 14 WATER ST WALTHAM MASSACHUSETTS 52155

Considered successful radical home-builts John Dykes JD-2 double delta four-place 180-hp Lycoming Spanning 22 feet cruises 170 can stretch out 190 hpnot bad performance single delta already well tried modelers home-built crowd keeps DYKE DEL TA U 0123456 C Fihaq coming up odd proven aircraft appeal modelers wish try something different Don Berliner THE SIGN side pretty air plane 2 block letters says Experi mental exactly what does mean because airplane brain child some mad genius basement full bubbling test tubes simply end result some bureaucrats redtape machine airplanewhether absolute ly standard type home-built can seen greater numbers some factory-built planes truly original design encompasses bunch radical ideasmust decorated Experimental order meet rules Federal bureaucracy Gov ernment its either fully tested certi fled production craft its Experimental its latter has sign warning anyone might enter Just experimental depends builder involved amateurairplane-building hobby nature goals Some airplanes built home because factory-built airplane would too expensive Others built because builder just likes build things airplane much teresting project another bookcase Still others built home because no factory airplane meets builders very 18 Model Aviation ese special needs few built because head designer/builder simply bursting unusual ideas can tried out genuinely Experimen tal flying machine give devil its due Federal Aviation Agency places fewer restrictions design construction use home-built airplanes does com parable agency other countrys gov ernment As long airplane built accepted standards using aircraft-quality materials used educational recreational purposes Feds wont get way true creativity fact dont have anything say about design home-built airplane some pilot willing risk neck flying airplane probably shouldnt leave ground thats business cause its neck course before hes allowed carry passengers take trip airplane must tested least 50 hours show flyable rea sonably safe fly weird-looking thing just takes eager pilot solid airframe Because scarcity foolhardy pilots airplane builders willing risk four five years work long shot chance success havent bad designs 20 years Experimental Aircraft Asso ciation have fair number radical designs created men women FAA percentage air planes having major new ideas has never very great now home-builts flying just 1% would amount lot unusual aircraft currently 4500 amateur-built aircraft licensed US double num ber active airliners turn page VA RIVIGGEN czccIzzzD LU 7Th 0123456 SCALE 1/4 J II February 1976 19 Burt Rutans Variviggen variation delta theme exemplified Swedish SAAB Viggen Mach-2 fighter canard-delta combo stable model real plane cannot spinor stahl Model Two major factors have combined keep supply radical home-builts down great time required design build test prove novel aircraft very special skills demanded such project thousands men wom en capable building airplane well-drawn set plans relatively few have engineering training and/or natural talent needed create something unique will leave ground return same condition balanced out against draw backs splendid opportunity experi ment minimum cost mini mum fuss No wind tunnels no computers no thick hooks government foundation specifications met Just take idea convert wood metal fiberglass take off Probably person has built airplane has given least idle thought creating something truly different An air plane shaped unlike anything fore thus should fly better faster economically pro duced greatest minds aviation history few hundred ideas have gotten far a drawing board before reality took over Scores have gotten shop doens have rolled out shop well way fame failure have actually flown sometimes much better comparable airplanes know few herein presented edification amuse ment collection no means tended complete Rather sampling creativity amateur air plane designers perhaps look future small manned aircraft Dyke Delta Delta-wings good Mach-2 air planes like Concorde SST N4ach-02 aircraft like hang gliders arent supposed particu lar value between extremes clear-cut challenge plus undeniably teresting appearance triangular air plane has spurred designer Mach-2 airplanes Actually double-delta diamond shape John Dykes JD-2 successful radical-design home builts just about native Amer ican four-place airplane available form construction drawings Rather being one-only wild idea gener ally seen family airplane combining good performance such practical con cepts folding wings looks guaran teed draw crowd airport stop Contrary reputation highspeed deltas have earned high landing take-off speeds steep attitudes Dyke flies pretty much like conventional airplane 20 Model Aviation Already sensation world Iightplanes Rutans Varieze reduces tip vortice drag its use Whitcomb Winglets tips will carry two people luggage 1000 miles modified Volkswagen engine developing 62 hp covers 70 miles per fuel gallon VA RIEZE 0123456 SCALE 1/4 Ed CFlha may easiest airplane build loaded strangely-shaped parts construction welded steel tubing covered fiberglass just like alot airplanes ordinary shapes Powered standard 180-hp Lycoming engine will cruise 170 mph top out 190 mph land about 70 mph Cruis ing range 75% power 700 miles service ceiling 14000 feet Dyke Delta has wingspan 22 feet length 19 feet height 6 feet wing area 180 sq ft Empty weight 1000 lbs gross weight 1750 lbs will carry 41 gallons fuel An informa tion packet $3 full plans $125 J Dyke 2840 Old Yellow Springs Road Fairborn Ohio 45234 VariViggen Another variation delta theme Burt Rutans two-seat VariViggen based sensational-performing Swedish SAAB Viggen Mach-2 fighter Like big fast Rutans home-built canard-delta thats about end similarity turbojet Viggen designed maximum performance VariViggen shines brightest low end speed range Its handling character istics slow 50 mph truly remark able Rutans demonstrations maneu verability low speed air shows sure winner VariViggen looks like designed high speed testbed some true improvements breed stall/spin accidents still major cause lightplane fatalities Rutan has created airplane will stall will mush climb 50 mph control stick way back same speed will make steeply-banked turns buffeting wont stall wont spin Construction conventional requiring use standard workshop tools few doubly-curved parts fiberglass produced Rutan Z277 MINI IMP 456 SCALE 1/4 1 F4Cfhe February 1976 21 Pusher propdriven Flexidyne shaft its buried 64-hp Limbach modification Volks wagen engineand ultra-ultra streamlining give Molt Taylors Mini-Imp estimated cruising speed 150 mph Would interesting see performs RC pattern airplane Model builders prototype flying several years now has 150-hp Lycoming engine giving top speed 165 mph cruising speed 150 mph rate climb sea level close 1000 ft/min landing distance mere 400 ft VariViggen has wingspan 19 feet canard span of8 feet length 19 11 height 6 2 wing area 119 sq ft canard area 183 sq ft Emp ty weight 950 lbs gross weight 1700 lbs 25-page technical report $9 report complete plans $51 Rutan Aircraft Factory PO Box 656 Mojave Calif 93501 VariEze newest flying machine emerge Rutan Factory also promising small aircraft appear years lives up its designers claims VariEze could quickly become very important factor world light airplanes So far indications will just about what has claimed VariEze true canard thin swept wing rear its horizontal tail up front rudders mounted Whitcomb Winglets out wing tips thus reducing induced drag tip vortices actually creating less drag conventional tail surfaces per formance good Rutan says some small part explanation will unusually low weight390 lbs empty airplane will carry two people baggage fuel 1000 miles flying Construction far conventional airframe being molded composite glass rigid foam core wing span VariEze 19 10 length 14 3 Normal gross weight 890 lbs giving payload 500 lbs far above empty weight As performance Burt Rutan says little canard has already demonstrated 135 mph cruising speed 30% power gallon gas 70 miles flown says will achieve 48 miles per gallon 185 mph 75% power powered 62-hp modified Volkswagen engine Rate climb according pre liminary estimates 2000 ft/min just pilot board 1200 ft/min passenger full load fuel baggage accuracy figures should soon made clear Rutan plans attack record book going Class Cia take-off weight under 500 kg/ 1102 lbs marks straight-line distance closed-circuit distance speed 1000 2000 km An information packet available $5 same source Van Viggen Mini-Imp another prolific de signers small aircraftMolt Taylor comes another high-performance very streamlined little VW-powered machine Mini-Imp father newcomer veteran comes developing novel airplanes being responsible flying car produced limited quantity Aerocar con tinued page 72 22 Model Aviation Off go wild blue yonderl Emmett Tallys Birdman weighs 100 pounds covered aircraft Mylar Stalls lands 18 mph takes off 75 feet rolls stop 15 engine two-cycle developing 15 hp Looks like model real plane Pictures Stouffers Photo Service B/RDMA N TL- / 7 0123456 SCALE 1/4 EcJ e F0R FUN FLYING FLOATER IS HARD TO BEAT can now report flying experience FLOATER Since am sport flyer rather contest entrant cant tell great contest successes However fun flying FLOATER hard beat has outclimbed out flown just about everythingat local field have lost trackof number of approximately half hour flights have have two 2 hour flights evening first impression first test flight what delightful handling characteristics has flown some violent thermal conditions yet docile enough am using toteach eight year old son fly FLOATER flyer Bellevue Wash Wing Load$45O 7 3 ozlsqft Flat Bot NACA 6409 RC Soaring/Pruss continued page 16 perfect score scale fidelity flying proven 1975 LSF Tournament Ken Wagner not-so-museum-like Libelle took top honors Dont misled Kens efforts resulted beautiful plane just wasnt Gier Hall Pearson Thacker school detailing guy said asked wasnt difficult task making wheel chair trained flea act putting play Man Came Dinner No putting tiny ball bear ings wheels should realized soaring other aspects modeling certain individuals gather much pleasure building seeing perform craftsmen produce might enjoy shortcoming efforts much detail evaluated takes scru tinizing eyes competent judges breed found sailplane gathering As result largest contests can provide elite group sailplane builders turn tends further refine art reduce number entries capable turning Out model less years time Last July suggestion made NSS Board Directors meeting encour age simple formula scale competi tion suggestion eventwithout long drawn out rules wranglefor scale whereby club holding sailplane contest could also have event scale PEANUT SCALE I __ PLANS ACCESSORIES IComplete catalog 50f OX 2498-AM LA MESA cAIJF 9204t dealer direct Postpaid Send Stamp Literature ii/scfl Box 135 North ridge Cal 91324 Chet Tuthill Tullahoma Tenn came up set proposed rules surely worth trying suggestions I Number Models contestant will allowed entry RC Sport Scale addition entry may make other sailplane competition during same contest same plane may entered event however flight per round will allowed score round being applied both events contestant enters plane scale another plane regular competition will fly both planes task However points achieved scale sailplane will apply scale event points other plane will apply toward regu lar competition score 2 Special Contest Consideration con test size ie number contestants and/or size sponsoring organization make advisable aircraft entered Sport Scale category may required fly dur ing rounds regular competition contestant has also entered model regular competition shall allowed two flights per round model discretion Contest Director contestant entered Sport Scale category may required fly rounds event Sport Scale en trants will given opportunity fly during same rounds pre-contest announcements shall stipulate Sport Scale flown along regular com petition rounds 3 Proof Scale prove model re sembles particular prototype some proof scale material required a Proof Scale responsibility contestant b To eligible Accuracy Outline points published three-view drawing line tone color selection photos aircraft modeled sufficient show outlines aircraft side view front view plan view required three-view available some photos airplane very useful judges should provided possible c To eligible Finish Color Markings points some proof color scheme used required can photo some other pictorial presentation magazine cover painting IPMS color diagram plastic kit coloring guide etc detailed written description reli able source Profile similar publica tion ideal proof both outline color scheme d If no proof scale material accom panies model Craftmanship Flight points may awarded 4 Static Judging a Static judging shall done dis tance 20 feet model rec ommended 40 diameter circle laid out roped off model placed center judging judges free circle model rope guide 20 viewing distance b Details deemed visible flight considered scoring model 5 Static Scoring 100 point maximum may earned follows Accuracy Outline General ImpressionMax 40 pts CraftsmanshipMax 30 pts Finish Color & MarkingsMax 30 pts 6 Bonus Points 10 points bonus shall awarded contestant model entered own design As proof con testant should include construction drawings scale presentation Presently scale sailplanes market would fit Tuthills proposal Soarcrafts Windspiels lines scale kits surely can considered Most models glass types go together straight forward manner advanced course creative chronography isnt re quired other imported kits also meet Tuthills proposal As club contest hold Stand Off Scale contest Building scale model could worthwhile winter project Shortlines LSF cross-country work open top vehicle isnt availablea technique found successful Plan flight usually drifting downwind thermal goal head back upwind return mind have car ready go downwind direction Predetermine will drive act witnesses As flight develops after launch fly plane favoring side car will sitting Get carthe window should rolled down can maneuver transmitter antennawhile plane still comfort able distance begin follow goal goal get Out car steer plane proper return courseagain relative will sitting proceed before. . next contest provide 15meter circle inside 30-meter circle Award points see fit circles provide stant reference working LSF Levels II Ray Hayes LOFT tried recent contesthad good results w heav ier spars1/s X 3/s new Soarcraft Magnum 12 spars much heavier tbos prototype models Overall wing quite bit beefier should withstand midwest type launches w towhook called Fly Hook Glider Guiders Phoenix Arizona Hook fully adjustable heavy steel rod lightweight aring clubs send have club secretary club name addresson postcard include number members club Mail Dan Pruss Box 490 Plainfield IL 60544 70 Model Aviation Span 110 Length 48 Area 6sq ft FISwl6 OZ Wing II OZ Semco manufactoes me, 280 accessoes fo modeling Sand 25 cents today fo catalog descehing pet L ENGINEERING INC 14 WATER ST WALTHAM MASSACHUSETTS 52155