NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l
Edition: Model Aviation - 1979/10
Page Numbers: 53, 54, 55, 56, 57, 58, 121, 123
NO OCR TEXT AMAY BELGIUM contest would pit 62 best sailplane fliers 21 countries contest would place Austrians now famous Dassel spotlight challenged design-influenced look-alikes other European countries also contest would see models other end design spectrum polyhedral breeds open framework wings built up fuse lages would dare challenge sleekness fiberglass Kevlar epoxy second F3B World Championships F3B being Held Amay Belgium second championship meet early July saw 62 fliers 21 countries compete extraordi nary contest marked impact new design philosophies Conceding advantage speed United States banked strong scores dis tance duration well-flown models didnt quite offsetthe per formance new breed machines U Text photos Dan Pruss INDIVIDUAL PLACINGS P1 Name Wackerle 2 Decker 3 Spavins 4 Roos 5 Schiborr 6 Sitar W 7 Worral 8 Baumgartner 9 Miller 10 Gerneke 19 Work 23 Koplan Country Austria Germany S Africa S Africa Germany Austria Great Britain Switzerland USA S Africa USA USA Total 14679 14677 14424 14314 14153 14009 13783 13692 13677 13522 12923 12801 TEAM PLACINGS Country South Africa Austria Germany USA Switzerland Great Britain Holland France Denmark Belgium Total 42260 42096 41698 39401 38828 38777 38137 36688 36492 35924 FAI category RC sailplanes contest would see gathering some old faces met two years ago first world championships South Africa Most countries attended South African meet would have repeat representation Amay United States sent team Steve Work Terry Koplan defending World Champion Skip Miller Ten days before contest began team arrived Belgium idea solid session practice USA team wasn t group line thinking South Africa showed up hours later first day practice team almost repeat South Africa Frikkie Roos finished se cond Skip two years ago back Roy Spavins First runner-up two years ago Nord Gerneke year made Jack Abbot contest director meet would team manager Right off start frequency conflict Skip Terry share fre quencies Roy Frikkie should noted Belgium country size state Maryland enjoys use over 54 Model Aviation Terry Koplan 30U0-mm Viking soarer Eugenio Pagliano Italy Short nose swept surfaces interesting Roy Spavins South Africa Yellow Bird finished third three SA models conventional construction Skip Miller Aquila Grande finished ninth place Its span 3080 mma big Roif Decker finished second bird glass over foam wing stab 2870-mm span Average spans 2737and average pect ratio 1336 1 70repeat 70frequencies practice sessions went well Belgium air agreed team thermals pastry shops hard believe followed nose Miller During week practice Aus tralians showed up did part Canadian team Practice started 830 am went until dark some evenings dark comes late Belgium July about 1030 pm About mid-week Austrian team showed up first fleet Dassels birds have terrorized F3B circuits Europe past two years speed times tens usually enough win going away average weekend fourround contests However contest scheduled elght rounds current definition round being speed dura tion distance duration speed scores could reflect 25% total score October1979 55 ne usrran uaaaeuwung mmflea ueen scourge European competitions world competition under -u ruies seem faced challenge refined designsand appears upgrading designs domestic competitions could cards regardless Steve checks outs 5080-mm SB-10 powered electric flown demo Inspired Austri techniques Deckers wing required 1700 man-hours mold alone Made top bottom halves joinedthen machinedtwo sep arate panels Definite advantage Pruss reports Pagliano Italy sleek back-up shipsAgo 79 flew original Allure interesting design featureservo hatch spoiler Paglianos unusual Allure US team wasnt psyched out low speeds conceded fact would about three seconds slower goat offset margin strong scores distance duration As practice sessions wore team looked sharper sharper Launches relaunches practiced either iron man Dave Thomburg hand-towing 12-volt winch doing launching moment arrived Sunday June 24 off Braniff flight 608 Bill Latham American GI Germany became sixth man team Enough thanks cant extended gent helped provide transportation around errand run ning us thereby making stay comfortable Bill spent time base B flagging speed distance runs teams spent practice also helped gauge turns guys developed groove anticipated turns Times 12s 13s six-minute duration achieved will hand catches being made hot dogging part practice re launches also avoid hidden rockslarge hidden rocksin grass yet cut 56 Model Aviation Above USA team members Steve Work Skip Miller inspect Hollands slick wing Looking Joris Ten Halt Below Close-up speed brake used Hollands wing Note small aileron Madam Paulette Halleux Contest Director re ceives Dassel wing autographed partici pants Peter Blomhart Sporting Director looking great trophy Paulette egmum may urn amam coumry ou ISIS aug Trequencles un ooaraover Iu rrequency clips Nigls Hassing Denmark Hawk Dassel influenced design2200mm wing span Note hatch/air brake similar air brake popped open Sitars ship almost lost plane managed clock down-wind leg 131 striking testimony crafts efficiency hotel contestants quarters models hassle about using winches modern school boys made avail- brakes got cleaned up after able event about 15 minutes attempt jury Terry Skin Steve processed rewrite rule book Eight countries would three pictures show operation secondamy pulley quick releaseused double-pulley hand tow South Africans used winches exclusively Austrians handtowed ex clusively Germans used winches exclusively US used both launching methods Friday June 29 practice continued between drizzles felt conditioned ourselves kind Belgium weather find out later few meteorological surprises Over weekend teams showed up practiced until early afternoon Sunday Skip Terry ran speeds 12s Steve us Last-minute checks double checks planes equipment made Rules gone over over again team members quizzed other inn American team L R Miller Work Koplan foreground left Model Aviations re Monday am checked out porter DanPrussand DaveThomburgthehuman launching machinewhothriveson hand-towing October 1979 57 Hans Schlapper Switzerland standing computer printer used Tor speed practice Wint out gave time Base Base B time turn time back total timel able use winches brakes no unreeling line during launch just rules stated last December Blame Miller finalist team selection program showed up spectate assist report meet Tuesday July 3 Its day before main event Formal practice sessions held allotted time frame scheduled team Paul Colanero Herb Marsh two fellow sailplaners Americans based Germany arrive scene complete tents American flags Blaine Rawdon name mentioned column times also shows up Blame helped crew Gos samer Albatross during its historic channel crossing stopped week tour through Europe now have people sometimes show up club meeting Opening day ceremonies conclude 430 pm flags 21 nations raised Wednesday July 4 Fog USA team first field ready Terry sched uled fly first fog continues electric-powered plane sent up check ceiling gets lost about 150 feet de stroyed Finally 1130 fog lifts contest Koplan launches thick air run letter-perfect stopwatch reads 142 Skip has identical time Steve runs 132 Meanwhile Austrian team clocks 103 110 115 win task USA scores 78% Austrians 2832 second task duration Terry gets 0523 100-point landing Ralph Learmont Australia Frikkie Roos South Africa score perfect 0600/ 100 Skip has 05 581100 Steve 0446 95 USA ends task 92% perfect Austrians have two out three near per fect duration flights Meanwhile South Africa 13 flight points away perfect 3000 point task round ends Austria first place USA sixth day ends 630 pm idea flying five tasks second day Thursday July 5 After 10 days practice clear mornings second day contest starts off again fog Twenty-two fliers get 12 laps distance air would best support argument making man-on-man event France Austria score 3000 points each fliersget 12lap runs Skip gets 11 laps Steve seven Terry five USA scores 64% perfect next round duration three American fliers max Skip gets 0559/80 Steve 0602/70 Terry 0559/30 As team 92% perfect South Africa 99% perfect Round two has Aus tria first place 130 points over South Africa USA eighth Round three starts another duration task Bazeimans Holland has per fect 0600/ 100 flight USA gets track winning task 99% perfect Terry Skip score 0558/100 Steve 0602/95 Speed follows its Wackerle Werner Sitar Austria 102 Herbert Sitar has 112 team wins task Work Miller Koplan turn 128 140 145 74% perfect score end round three individual stand ings show Werner Sitar Anton Wackerle RoIf Decker two three spots closest American Miller 11th team sixth behind Austria South Africa Holland Great Britain Germany Round four starts 7 pm distance Late hours practice would pay off three USA team members get 12 laps evening air Its also chance catch up Austrians fall short total 31 laps team task ends 945 pm sleep well night Friday July 6 Again fog duration does go its Steve 0557/100 Skip 0558/ 100 Terry 0528/90 95% perfect Werner Sitar leads team 0600/ 100 Austrians 99% perfect duration end round four its still Sitar Wackerle Decker However strong scores have moved USA fourth place past Great Britain Germany Round five starts duration USA wins task 99% perfect Skip scores perfect flight task 0600/100 Steve has 05 59/100 Terry 0600/95 However Austrians also max out score 97% perfect follow up 95 Herbert Sitar speed Werner does 104 Wackerle slow 110 Its enough win task USA scores 66% Skip Steve Terry turn 144 141 131 speed runs hurt us round USA drops fifth Germany slips Continued nne 121 58 Model Aviation Herbert Sitar poses Pfeil plane holds present speed record 392 kmIhr Its configuration world famous Wackerle new world champion being con gratulated Skip Miller stood top first Soaring World Championships again note contrasts design a. suj.uaII .uIu LUIUII Imp5 LU uurn pare contrasts design South Africa same boat US won because ships cleaner onesecond advan tage time spelled difference Sighting gate Hans Schlapper Switzerland used during practice Hand towing monofilament line offered height advantage line met measurement requirement fore after flight stretched under load towing know what results will seek help Control-line flying usually takes place populous areas other forms sport therefore has historically frequented spectators Further group modelers flying theyre closer proximity airplane flying very important manufacturers safety recommendations fol lowed use AMA requirements pull-tests strictly adhered should considered minimal safety guidelines En forced flying site rules will make sport safer should take away challenges fun education daredevilry offered aeromodeling Tutor has tutored us we-fly-lab forced us look new ideas objectively has proven further manifestation what Jim Walker started almost 40 years ago adventure some Top Flite Fox products has once again shown important part industry plays sport Hope have much fun growth products did Glider WC/Pruss continued page 58 fourth Miller high man team 11th top three places remain un changed Round six starts out dramatically Kop Ian starts working time finds out has no radio action plane Since its start round can use other plane its across field Skip super-human effort gets plane launch made Terry gets 4 laps Skip gets 10 Steve 9 Only 16 filers get 12 taps three Germany USA 66% perfect 3000 points Later bad switch found gremlin Terrys plane duration Terry makes excellent comeback flier score per fect 0600/100 Skip followed 0557/100 Steve 0440/100 USA 94% perfect South Africa 99% end round still Sitar Wackerle Decker four five six Spavins Gerneke Roos South Africa enough give South Africa lead first time over Austria mere 364 points out 33000 Germany third Hol land fourth USA fifth Saturday July 7 last scheduled day competition Eight rounds 16 flights planned contest after first day fog schedule back normal thanks contest director Madam Paulette Halleux Belgium Aero Club However meant flying until 945 pm second third days get back schedule As round seven began USA found self fifth place slightly ahead Great Brit ain just behind Holland South Africa 364 points lead over Austrla Germany solid third place Austrians have averaged 1058 seconds nine speed runs USA av eraged 138 seconds South Africa aver aged 128 seconds 82% Austrians score pace slightly ahead what USA team figured would take win Round seven begins wind about 8-10 mph Wackerle Werner Sitar clock 104 107 speed Herbert Sitar almost loses plane canopy acts speed brake comes open base B flies downwind leg open still clocks 131 Steve turns 128 Skip 133 Terry 138 wind increases Aus trlans win task USA 20% off Austrians pace wind continues increase guys neatest bit thermal flying meet three max following lift downwind dam near out sight USA wins task Wackerle has perfect 0600/100 Coupled speed run gives him 2000 points round other perfect 2000 score meet far Westgaardronning Norway back second round However USA gets Holland holds fourth place 445 points Austria back first place South Africa 337 points behind Top three individ ual slots held Wackerle Werner Sitar Frikkie Roos Skip Miller seventh Round eight begins duration wind 18 mph Skip plays llght bubble downwind others flight group drop out sky same gutsy technique kept him top duration seven rounds However time lift/drift trade off too great drift side has make back whatever score can get Getting back nearly impossible four minutes bird lands barely field out 100-meter range spot meant no fllght points immediate re launch made utilizing remaining 0145 flight scorc 85-point landing will cost him couple places indi vidual standings keeps team placing October1979 121 intact Steve fairs slightly better score-wise Terry maxes gets 100-point landing Germany wins task Decker has per fect score team scores 94% perfect wind doesnt ease up final task Skip flies 84 laps distance Steve man ages 6A end round go broke fourth place USA best So Terry loads up bird 60 ounces ballast five get 12 laps Germany wins task 80% per fect USA Austria just hind 76% Second World Championships over South Africa slipped Austria win team prize Wackerle Austria eked Roif Decker Germany 2000-point round two points14679 14677 USA locked up fourth place Miller Work Koplan ended up 9th 19th 23rd wont Monday morning quarterbacking because what ifs would number least thousand number contests x flights USA didnt go over take fourth place went over win However guys never out-flown man-to-man contest duration dis tance held tomorrow Id bet next months paycheck Koplan Miller Work did win tie four tasks fact out-planed no dig manufacturers kits team flew know what red lines models gamble made al won South Africa did win team strategy similar sleeker models narrowed speed edge aver aged 128 seconds 84% Austrians 108 average USA averaged 137 78% Austrians score Technology won Wackerle antitechnology Nord Gerneke put won balsa polyhedral South Africa against models identical within grams hundredths millimeter other USA did outscore 17 other coun tries least 10 flying Austrian influenced designs boasted about better designs therefore has compliment Miller Work Koplan flying ability Falcon 56/Harrah continued page 65 sufficient glue-to-glue ratio over pound could saved total weight Being practical glue has its place kit needs three prudent modeler educates himself use glues should able save almost d case radios much 5 ounces can saved battery pack 1000 MA 71 ounces less 225 MA 195 ounces As much ounce per servo can saved 4 servos times ounce equals another four ounces variance ounce receivers adds up about 10 ounces total over another d have choice putting model used standard 450-MA battery pack 35 ounces additional flight time instead 225-MA power supply would still close pound obvious least another half pound can saved sanding finishing over-engineered heavy-weight pushrods mean weight must added nose balance CG center gravity sudden difference between four-pound six-pound Falcon becomes apparent beginner difference between fun sport trainer trying fly baby-grand piano doesnt mean need 1000MA batteries 2-oz servos lots epoxy sturdy pushrods scale finishes need right places particular type aeromodeling natural progression heavier model add weight needlessly during building must add heavier engine larger fuel tank fly further compounds problem case Falcon designed weigh under 4 5 lbs would probably safehedging over figure risky Increasing four-lb craft five lbs 25% addition weight air stress strain part airplane increased 25% under normal flying conditions Once turned aerobatic speedster increased forces can become astronomical airplane breaks up air creating safety hazard loss time money hobby ceases fun applies forms aeromodeling just ANNOUNCING Fast Steep climb FLa Slow G de 4 new P30 Class model designed w h novice mind has potential win toughest THE POTENT30 Deluxe kit features include Rolled balsa fusela 0 e wing mount dt completed prop nose plug tail plug & rudder Precut wing ribs spar notches job rated balsa strips Highest quality iissue lobed contest rubber Detailed instructions flying tips help win l CAT ND R2 SegS pp check money Order CHAS WERLE 3620 MORSE AVE NOB SACTO CALIF 95821 October 1979 123 SILKSPUN COVERITE STILL THE MOST ECONOMICAL IRON-ON COVERING $ Red White blue yellow & orange f 58 PER SQ F THE GREATEST FOR SHEETED SUR FACES COVERITE 420 Babylon Rd Horsham Pa 19044 1930 STINSON TRIMOTOR MODEL T R/C KIT Wing Span port Stand Off Scale OWing Ares sq Weight 95 lbs safe way0 Radio ch fly multi ne 1 35 40 2 15 0 Preformed aluminum struts cowls Wood construction 0 Full size plans Sold Direct INTRODUCTORY Information send SASE toPRICE $12995 MOHAVE INDUSTRIES INC 2365 Northern Ave man AZ 86401 602 757-2480 ~ari uolaoerg center greeting peopie man doesnt have anythIng Bob Rich background rNuISIUN URIANLL CALL UIHtLIlUN Heres equipnent ygu need give props tne very best balance--balance directions Carefully crafted top grade materials BUBBLE BALANCER accomodates 3/161/49/32 prop holes Other sizes available special order Dealers insited $1295 Add $150 let HOWARD B HUEBI sun sos Postage handling hi Mini add 4%nles tan No Coas Bos 193 Route 4 Mankato Mtt 56l