Competition Newsletter

COM PETI TWIN *8 NE WSLETTERWF ACADEMY OF MODEL AERONAUTICS 815 FIFTEENTH STREET NW WASHINGTON DC 20005 New World Record Powered NC Endurance 20 Hr 50 Sec Maynard Hills world record-holding i-iC Enaurance m-i moaei Fignt maae SeptemDer i near larooKyIlle MD Launch 459 pm EDT ended 20 hr 50 sec later 100 pm EDT Lights wing tips taildriven modified bicycle alternator enginewere used spot Orient craft during night Craft spans 8 ft 7 6 ft 2 long weighs 7 lb 3 oz empty 11 lb fuel translates fuel capacity about gal powered OS FS 60 4-cycle engine modified magneto spark igni tion swinging 16-in prop RC equipment Kraft transmitter receiver Ace Bantam Midget servos rudder elevator throttle model equipped wing-leveling electrostatic autopilot developed Maynard several years ago Maynard past president AMA has previous years held FAI world records 10 different RC categories Contest Forms Available Attention CDsI various contest forms used AMA Nats available Contest Directors use own local contests Some forms card stock some have tear-off portions some printed both sides others multiple-copy selfduplicating types can make running scoring event easier efficient AMA HQ can supply forms quan tity AMA Chartered Clubs cost duplication $6 100 forms mix match Send SASE Supply Service sec tion AMA HQ detailed list description form ordering formation UK Hosts Inter national NC Soaring Contest British Association Radio Control Soarers announces World Intergllde 82 World Thermal Soaring Contest held August 7-8 1982 ancient English medi eval town Warwick contest open competent RC Saliplaner entry restricted 100 Pref erence will given overseas entrants contest will flown FAI rules British Thermal Soaring Rules will used contest has organized mark tenth anniversary British Association Radio Control Soarers organizer Coventry District Model Aeroplane Club Further information copy rules can obtained writing meets Public Relations Officer AF Wisher 21 Williams Terrace Daventry Northants NN1 1 5ER England Warwick located about 20 miles southeast Birmingham about 80 miles northwest London 8205 CL Team Manager Selected recently-completed vote members 1982 US CL Team have selected Don Jehilk Hawthorne NV manager team Don managed 80 team World Champs held Poland very active FAI Team Race 60s early 70s continued page 96 Giant Scale Engine Displacement Clan tication summary rules changes printed December 1981 issue page 97 contained item referring maximum allowable engine displacement Giant Scale order make meaning new rule clear to avoid misunderstandings fore new rule book available pre sent following note Single-engine Giant Scale models limited engine displacement 37 cu Multi-engine Giants limited total engine displacement 44 cu ** * * ** ** * NEWS FLASH 1982 World Championships RC Scale PrecisionJune 13-19 1982 & StandoffReno NV USA CL Precision ScaleAugust 24-31 1982 Kiev Russia FF IndoorSeptember 22-26 1982 Romania FF PowerlWakefielddate set 1983 Towline GliderAustria decisions December FAI meet ing Paris February 1982 89 starts pilots scramble back favorite spots tar flying race 1981 PIONSHIP IIMPRARACE Photos author NMPRAs annual Champion ship Race top Formula race year Only fliers have proven themselves top competitors cur rent competition yearplus organizations officersare invited compete year event held Las Vegas * ** * ** *** ***** * *** * ** ** ** ** * year towards end October National Miniature Pylon Racing Associa tion holds its annual Championships Race race site either Florida Texas California type rotation keeps expense travel kind of competitors order qualify race must both AMA NMPRA member seven districts must quali fy race finishing top 20% district top 10 AMA Nationalsor year allowed top five Canadian Nationals past Championship Race winner NMPRA officer automatically qualified pilots competing race worked long hard qualify represent nations cream crop years race held Las Vegas NV October 31 November 1 Las Vegas worlds exciting cities lot fliers made years race vaca tion As enter Strip Las Vegas first things notice big circus clown clown front Circus Circus Hotel-Casino think largest best places stay Las Vegas Circus Circus people helped sponsor years race Circus Circus Hotel NMPRA Headquarters wife Nancy went years race together arrived late Thursday ing planned doing little testing Friday day before race what lot us have wait until last minute get ready arrival field Friday morning found alone As biggest race year lot fliers work right up until last minute trying get everything working just right fact some competitors started arriving almost week ahead time spent week test flying running engines looking perfect combinations Friday evening registration com petitors required register have planes safety checked planes scale-judged best looking airplanes take off first race day pilots advantage have best looking airplane best airplane years race belonged Dennis OBrien outdone himself time beautiful Pole Cat Dennis Boca Raton FL works custom auto builder think might have somehting almost perfect job did Pole Cat After registration us went back hotel rooms put planes charger made last-minute checks make sure ready race start 900 am Saturday weather had been little windy continued page 92 90 Model Aviation rirnis iruntuduul WUFI d UL LFCIC UdIIRICWUC U OUt RI Ron Gilman xn dOU fast time 1115 Rusty Van Baren 2ndJerry Boyt ust February 1982 91 lJtflA UVC CL LC VUI y anal t UCII U thU ULJQC LIWI IS IIUUUUU win Note fine effort caller left Dennis uUrIens role Lat juage best Viane uuite accom plishment seeing 100 entries isnt empty honorit means get take off first heat youre hIUU ar must ot workers years p Ilace worked long wellmade tnis years event great success Bill doesnt think its possible thank enough continued cooi week front gone through Welt lucky front passed next two days almost perfect Contest Director year Joe Zdankiewicz flag man Bruce Richmond workers helped out years race experienced veterans did fantastic job Competition Racing Saturday fast furious Everyone surprised see Ron Gilman consistent fliers aroundget zero first race engine just quit no apparent reason Well plenty other people thick going top honors end racing Saturday five guys perfect 16 points Tom Christo pher Kent Nogy Jerry Small Jerry Boyce Rusty Van Baren point down Jeff Bertkin Greg Doe lot flameouts lot people gotten big fat zero first round seemed lot fliers still chance catch up Sunday Saturday evening annual ban quet Frontier Hotel-Casino give out awards top finishers national points year top 10 get NMPRA shirt first place finisher gets trophy year quite honor takes lot hard work amass points everyone else country years winner Gary Hover 6023 points Gary Los Osos CA building facilities manager county San Luis Obispo Yours truly received plaque apprecia tion being president NMPRA last three yearsan honor shared wife Nancy sure made job easier helping out whenever could Sunday racing started 700 am sharp wanted get least eight rounds 300 pm weather perfect almost no wind little cool morning about 800 afternoon After round five still Jerry Boyce Rusty Van Baren Kent Nogy tied first place perfect 20 points Round six saw fantastic race between NMPRA CHAMPIONSHIP RACE RESULTS OCTOBER 31 NOVEMBER 1 1981 LAS VEGAS NV Final Standing Fastest Time ContestantPointsModelEngine 1Jerry Boyce321143ToniST X40 2Rusty Van Baren321169ToniST X40 3Kent Nogy301146DeNightK & B 4Keith Davidson291169Pole CatST X40 5Ron Gilman28i115fsttimeTDeNightST X40 6Greg Doe281171Pole CatSTX4O 7Andrew Mclndoe271241ToniST X40 8Mike Atzie261156ToniST X40 9Jerry Small251258PelletsST X40 10Dennis OBrien251190Pole CatST X40 11Tom Castellano241171Pole CAtST X40 12Chuck Greenwood241252Pole CatST X40 13Tom Christopher231157Pole CatST X40 14Dub jett231233PelletsST X40 15Ron Schorr231239Br BagST X40 16Gary Heithold231248Pole CatST X40 17Bob Wallace231254DeNightST X40 18Doug Ruble211197ToniST X40 19Norm Johnson211204DeNightST X40 20Eric Ristrim211209ToniST X40 21Russ Kline 22Tom Strom 23Gary Hover 24Dave Shadel 25Tony Lopez 26Scott Johnson 27George Parks 28Pete Reed 29jeff Bertken 30Tony Huber 31Leon Elbert 32Lew Hipkins 33Barrie Berlin 34Joe Cohen 35Mack Moffet 36Guy Johnson 37 Don Rice 38 Walt Chikmoroff 39 Mike Sperry 40 Gail Jacobson 41 Terry Ferentinos 42 Jim Booker 43 JP Hanaway 44 Gary McPike 45 Paul Stenburg 46 Bob Smith 47 Mike Helsel 48 Gene Sidwell 49 Lloyd Burnham 50 Doug Rankin 51 George Soderburg 52 Dave Latsha 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Dave Layman Simon Reese Bob Nickle Ed Allen Mel Reed Matt Smith Bob Novak Kim Tucker Wayne Yeager Tom Dooly Bill Hager Larry Weddle Bill Williamson Bob Reuther 92 Model Aviation fect score Caller Rusty Van Baren per fect score toobut Jerry faster plane -r NMPRA National Point Champion 81 Contest Manager years Chain pionship Raceone best ones yet 000 ouau L Gnu UGIECY u utun Key UITICIGIS U II1 IGC L iu R Bruce Rich mond race starter Joe Zdankiewicz Contest Director both did great job left Jerry Rusty Van Baren tied first several others right heels Jerry Rusty same team call other same RC frequency cant fly against other end eight rounds still tied first 32 points Since Jerry faster time Rusty 1143 made Jerry Boyce 1981 Champion Kenty Nogy came third 30 points Keith Davidson fourth 29 28 points tie existed between Greg Doe Ron Gilman fifth Ron won flyoff Greg cut pylon 25 points Jerry Small Dennis OBrien tied ninth Jerry award ed ninth because Dennis didnt want fly off 24 points Chuck Greenwood Tom Castellano Tom won flyoff Chuck cut out finishing 11th place rest ties determined fliers fastest time Fast time race 1115 Ron Gilman Jerry Boyce Rusty Van Baren Ron Gilman Circus Circus team sure together years race best have attended Contest Manager Gary Hover people Circus Circus did fantastic job everything first class looking forward coming back Las Vegas Best crash award went Bill Williamson lot fun Next years Championship race will Texas Maybe will see Thoughts FiD Rules Changes Emanuel Radoff Erv Rodemsky good intentions made new proposals Fl D model believe trying attain wrong way Mostly wonder such proposal submitted author out ever testing such model Let discuss pros cons reasoning methods 1 Stop destruction fragile models having smaller stornger Limit wingspan 50cm instead 60cm proposed Sixty cm enough smaller 65 make meaning fully smaller model Keeping gram minimum weight will result stronger model b limit total length Permit designer some latitude c smaller 50cm span does need area rule wide can make 50cm wing designer wishes fly tandem let its possibility explored d An area rule nightmare ways model can built larger presented templates An increase humidity can enlarge area built maximum Most microfilm models true geometric figures requiring measurements can easi ly result damage 2 Mass destruction heretofore unexplored idea namely no touch rule hereby offered solu tion model destruction penalty will applied model touches ceil ing ascent b heavier smaller model can better withstand launch torque c smaller heavier model will better withstand ballooning due drift d will better withstand shipping handling 3 Rubber weight limiting rubber weight inappropriate rule has told California fliers have tried gm rubber said resulted very poor flight times obtaining good rubber problem Erv presents Because wide discrepancies available rubber brand batch inclusion gm rubber weight rule unnecessarily re stricts modelers latitude use different qualities advantage 4 Limit flight times Ervs rubber weight limit surely meant smaller heav ier model will decrease flight time per mitting flying skill allowing choice rubber weight 5 Decrease model box size 50cm span 10cm smaller Ervs 60 permits box 20 inches square despite models length smaller heavier model plug-in booms can used weight penalty 6 The use gears mechanical gadgets Agreed should disallowed 7 Model processing a As mentioned area rule night mare b Span weight rules easily pro cessed 8 Extra fine premium balsa will less factoragreed So let state counterproposal mind simpler will better accom plish what want imposing sti fling design rules Lakehurst FiD Stick 1 Limit span 50cm monoplane 2 The minimum weight rubber motor shall gram 3 No-Touch Rules penalty minute shall deducted flight time time models parts touch ceiling ceiling girders ascent phase a A determination what parts flying site structure constitutes ceiling ceiling girders shall made Contest Director fliers before contest b Steering model ascent will permitted time possible better center ing c Creating air disturbance bal loon keep model touching will cause flight terminated can jeopardize another model d If its descent model drifts side may balloon-steered safety penalty conclusion believe no-touch rule answer destruction problem has eluded us 20 years significant proposal way go cordially recommend its consideration terested Fl D competitors Coincidentally John Triolo Bill Tyler independently suggested no-touch rule Bud Tenny ex perimented such rule Texas nothing evolved now idea time has come above presented comment write-in results favorable AMA can present FAI some time future proposal given FAI 1982 rules could officially adopted time 1984 Indoor World Championships Interested modelers vited send comments AMA HQ Attention Micheline Madison February 1982 93 Dave Kent Jerry Jerry coming out top lurung t - cal Ft hollering something pilot Greg cut pylon making easy opponent Ron Gilman win 7 caller Rusty Van Baren pilot Ron Gilman have looks intense concentration Ron won flyoff opponent cut pylon NC Sailplane Records San Fernando Valley Silent Flyers club has recently mounted all-out attack AMA National Records RC Sail planesand has great success study list national records published January 1982 issue reveals six members club currently hold 28 National Rec ords level performance no accident club got its act together stand point both models sanctioned Record Trials Some special equipment assembled too Stopwatches maps like easy enough get use Dura tion Distance categoriesbut about Altitude verification Competition Newsletter privileged able publish two brief articles written SFVSF members describing equip ment techniques used measuring altitude Sailplanes record attem pts Altitude Calculations SFVSF tor SFVSF Theodolite Record Trials Michael Bame Referring diagram Base Line c measured distance between two theodo lites Angles B azimuth angles measured theodolites Angles D E elevation angles measured theodolites altitude aircraft above ground h Since three angles triangle add up 1800 angle C equals 180 gles C B base c known Law Sines states ca sinCsinA b sin B Therefore n sin C bsin B sin C LD C Z T4EObOLTE San Fernando Valley Silent Flyers theodolite easily assembled commonly available parts used RC Sailplane altitude measurements clubs 1981 record-setting program has thus far resulted 28 national records thirdgeneration device developed over two-year period device designed built SFVSF members Ed Slobod Jerry Krainock Blame Rawdon Ed Slobod designed manufactures famous Pierce Arrow Paragon sailpianes Jerry Krainock has twice held world crosscountry distance record currently holds eight open declared national distance records including much-publicized 66-mile flight Blame Rawdon known modeling circles now kitted Mirage sailplane design Blame did design work Solar Challenger helped design build famous English Channelcrossing man-powered Gossamer Albatross SFVSF theodolite can put together anyone just few hours consists following sturdy camera tripod sturdy 1/8-in aluminum base plate sturdy 1/8-in aluminum tilting mechanism Miscellaneous screws nuts washers 360-degree protractor approximately elevation angles D E triangle leg lengths b known altitude h can calculated h h tanE tanD ab Rewriting expressions get 8-in diameter azimuth scale wire azimuth pointer 1 80-degree protractor also 8-in diameter elevation scale wire elevation pointer low-power 4x rifle scope built-in Dave Peltzcrosshairs AMA 968 cardboard tube eye end scope easier viewing Several Teflon washers use pivot points photo nearly self-explanatory critical areas 1 elevation pivot point must ex actly center elevation scale elevation erros will result 2 pointers stiff wires end ground point both tached aluminum arm turns baseplate Thus scope rotated and/or tilted both pointers move appropriate ly Angles can directly read 1/2 degree approximated nearly 1/10 degree 3 Make pivots such no looseness slop Teflon washers used tween sliding parts entire mechanism should loose enough moving plane may easily tracked same time must tight enough scope stays exact position placed having held hand using device use small bubble level placed base plate en sure base plate horizontal Also make azimuth readings easier sight through scope along base line other theodolite rotate base plate tripod zero degree azi muth reading set other theodolite view scope h tan E h b tan D Note two values h Ideal ly two would same al impossible occur because small errors tracking plane reading angles two values h averaged continued page 96 94 Model Aviation

COM PETI TWIN *8 NE WSLETTERWF ACADEMY OF MODEL AERONAUTICS 815 FIFTEENTH STREET NW WASHINGTON DC 20005 New World Record Powered NC Endurance 20 Hr 50 Sec Maynard Hills world record-holding i-iC Enaurance m-i moaei Fignt maae SeptemDer i near larooKyIlle MD Launch 459 pm EDT ended 20 hr 50 sec later 100 pm EDT Lights wing tips taildriven modified bicycle alternator enginewere used spot Orient craft during night Craft spans 8 ft 7 6 ft 2 long weighs 7 lb 3 oz empty 11 lb fuel translates fuel capacity about gal powered OS FS 60 4-cycle engine modified magneto spark igni tion swinging 16-in prop RC equipment Kraft transmitter receiver Ace Bantam Midget servos rudder elevator throttle model equipped wing-leveling electrostatic autopilot developed Maynard several years ago Maynard past president AMA has previous years held FAI world records 10 different RC categories Contest Forms Available Attention CDsI various contest forms used AMA Nats available Contest Directors use own local contests Some forms card stock some have tear-off portions some printed both sides others multiple-copy selfduplicating types can make running scoring event easier efficient AMA HQ can supply forms quan tity AMA Chartered Clubs cost duplication $6 100 forms mix match Send SASE Supply Service sec tion AMA HQ detailed list description form ordering formation UK Hosts Inter national NC Soaring Contest British Association Radio Control Soarers announces World Intergllde 82 World Thermal Soaring Contest held August 7-8 1982 ancient English medi eval town Warwick contest open competent RC Saliplaner entry restricted 100 Pref erence will given overseas entrants contest will flown FAI rules British Thermal Soaring Rules will used contest has organized mark tenth anniversary British Association Radio Control Soarers organizer Coventry District Model Aeroplane Club Further information copy rules can obtained writing meets Public Relations Officer AF Wisher 21 Williams Terrace Daventry Northants NN1 1 5ER England Warwick located about 20 miles southeast Birmingham about 80 miles northwest London 8205 CL Team Manager Selected recently-completed vote members 1982 US CL Team have selected Don Jehilk Hawthorne NV manager team Don managed 80 team World Champs held Poland very active FAI Team Race 60s early 70s continued page 96 Giant Scale Engine Displacement Clan tication summary rules changes printed December 1981 issue page 97 contained item referring maximum allowable engine displacement Giant Scale order make meaning new rule clear to avoid misunderstandings fore new rule book available pre sent following note Single-engine Giant Scale models limited engine displacement 37 cu Multi-engine Giants limited total engine displacement 44 cu ** * * ** ** * NEWS FLASH 1982 World Championships RC Scale PrecisionJune 13-19 1982 & StandoffReno NV USA CL Precision ScaleAugust 24-31 1982 Kiev Russia FF IndoorSeptember 22-26 1982 Romania FF PowerlWakefielddate set 1983 Towline GliderAustria decisions December FAI meet ing Paris February 1982 89 starts pilots scramble back favorite spots tar flying race 1981 PIONSHIP IIMPRARACE Photos author NMPRAs annual Champion ship Race top Formula race year Only fliers have proven themselves top competitors cur rent competition yearplus organizations officersare invited compete year event held Las Vegas * ** * ** *** ***** * *** * ** ** ** ** * year towards end October National Miniature Pylon Racing Associa tion holds its annual Championships Race race site either Florida Texas California type rotation keeps expense travel kind of competitors order qualify race must both AMA NMPRA member seven districts must quali fy race finishing top 20% district top 10 AMA Nationalsor year allowed top five Canadian Nationals past Championship Race winner NMPRA officer automatically qualified pilots competing race worked long hard qualify represent nations cream crop years race held Las Vegas NV October 31 November 1 Las Vegas worlds exciting cities lot fliers made years race vaca tion As enter Strip Las Vegas first things notice big circus clown clown front Circus Circus Hotel-Casino think largest best places stay Las Vegas Circus Circus people helped sponsor years race Circus Circus Hotel NMPRA Headquarters wife Nancy went years race together arrived late Thursday ing planned doing little testing Friday day before race what lot us have wait until last minute get ready arrival field Friday morning found alone As biggest race year lot fliers work right up until last minute trying get everything working just right fact some competitors started arriving almost week ahead time spent week test flying running engines looking perfect combinations Friday evening registration com petitors required register have planes safety checked planes scale-judged best looking airplanes take off first race day pilots advantage have best looking airplane best airplane years race belonged Dennis OBrien outdone himself time beautiful Pole Cat Dennis Boca Raton FL works custom auto builder think might have somehting almost perfect job did Pole Cat After registration us went back hotel rooms put planes charger made last-minute checks make sure ready race start 900 am Saturday weather had been little windy continued page 92 90 Model Aviation rirnis iruntuduul WUFI d UL LFCIC UdIIRICWUC U OUt RI Ron Gilman xn dOU fast time 1115 Rusty Van Baren 2ndJerry Boyt ust February 1982 91 lJtflA UVC CL LC VUI y anal t UCII U thU ULJQC LIWI IS IIUUUUU win Note fine effort caller left Dennis uUrIens role Lat juage best Viane uuite accom plishment seeing 100 entries isnt empty honorit means get take off first heat youre hIUU ar must ot workers years p Ilace worked long wellmade tnis years event great success Bill doesnt think its possible thank enough continued cooi week front gone through Welt lucky front passed next two days almost perfect Contest Director year Joe Zdankiewicz flag man Bruce Richmond workers helped out years race experienced veterans did fantastic job Competition Racing Saturday fast furious Everyone surprised see Ron Gilman consistent fliers aroundget zero first race engine just quit no apparent reason Well plenty other people thick going top honors end racing Saturday five guys perfect 16 points Tom Christo pher Kent Nogy Jerry Small Jerry Boyce Rusty Van Baren point down Jeff Bertkin Greg Doe lot flameouts lot people gotten big fat zero first round seemed lot fliers still chance catch up Sunday Saturday evening annual ban quet Frontier Hotel-Casino give out awards top finishers national points year top 10 get NMPRA shirt first place finisher gets trophy year quite honor takes lot hard work amass points everyone else country years winner Gary Hover 6023 points Gary Los Osos CA building facilities manager county San Luis Obispo Yours truly received plaque apprecia tion being president NMPRA last three yearsan honor shared wife Nancy sure made job easier helping out whenever could Sunday racing started 700 am sharp wanted get least eight rounds 300 pm weather perfect almost no wind little cool morning about 800 afternoon After round five still Jerry Boyce Rusty Van Baren Kent Nogy tied first place perfect 20 points Round six saw fantastic race between NMPRA CHAMPIONSHIP RACE RESULTS OCTOBER 31 NOVEMBER 1 1981 LAS VEGAS NV Final Standing Fastest Time ContestantPointsModelEngine 1Jerry Boyce321143ToniST X40 2Rusty Van Baren321169ToniST X40 3Kent Nogy301146DeNightK & B 4Keith Davidson291169Pole CatST X40 5Ron Gilman28i115fsttimeTDeNightST X40 6Greg Doe281171Pole CatSTX4O 7Andrew Mclndoe271241ToniST X40 8Mike Atzie261156ToniST X40 9Jerry Small251258PelletsST X40 10Dennis OBrien251190Pole CatST X40 11Tom Castellano241171Pole CAtST X40 12Chuck Greenwood241252Pole CatST X40 13Tom Christopher231157Pole CatST X40 14Dub jett231233PelletsST X40 15Ron Schorr231239Br BagST X40 16Gary Heithold231248Pole CatST X40 17Bob Wallace231254DeNightST X40 18Doug Ruble211197ToniST X40 19Norm Johnson211204DeNightST X40 20Eric Ristrim211209ToniST X40 21Russ Kline 22Tom Strom 23Gary Hover 24Dave Shadel 25Tony Lopez 26Scott Johnson 27George Parks 28Pete Reed 29jeff Bertken 30Tony Huber 31Leon Elbert 32Lew Hipkins 33Barrie Berlin 34Joe Cohen 35Mack Moffet 36Guy Johnson 37 Don Rice 38 Walt Chikmoroff 39 Mike Sperry 40 Gail Jacobson 41 Terry Ferentinos 42 Jim Booker 43 JP Hanaway 44 Gary McPike 45 Paul Stenburg 46 Bob Smith 47 Mike Helsel 48 Gene Sidwell 49 Lloyd Burnham 50 Doug Rankin 51 George Soderburg 52 Dave Latsha 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Dave Layman Simon Reese Bob Nickle Ed Allen Mel Reed Matt Smith Bob Novak Kim Tucker Wayne Yeager Tom Dooly Bill Hager Larry Weddle Bill Williamson Bob Reuther 92 Model Aviation fect score Caller Rusty Van Baren per fect score toobut Jerry faster plane -r NMPRA National Point Champion 81 Contest Manager years Chain pionship Raceone best ones yet 000 ouau L Gnu UGIECY u utun Key UITICIGIS U II1 IGC L iu R Bruce Rich mond race starter Joe Zdankiewicz Contest Director both did great job left Jerry Rusty Van Baren tied first several others right heels Jerry Rusty same team call other same RC frequency cant fly against other end eight rounds still tied first 32 points Since Jerry faster time Rusty 1143 made Jerry Boyce 1981 Champion Kenty Nogy came third 30 points Keith Davidson fourth 29 28 points tie existed between Greg Doe Ron Gilman fifth Ron won flyoff Greg cut pylon 25 points Jerry Small Dennis OBrien tied ninth Jerry award ed ninth because Dennis didnt want fly off 24 points Chuck Greenwood Tom Castellano Tom won flyoff Chuck cut out finishing 11th place rest ties determined fliers fastest time Fast time race 1115 Ron Gilman Jerry Boyce Rusty Van Baren Ron Gilman Circus Circus team sure together years race best have attended Contest Manager Gary Hover people Circus Circus did fantastic job everything first class looking forward coming back Las Vegas Best crash award went Bill Williamson lot fun Next years Championship race will Texas Maybe will see Thoughts FiD Rules Changes Emanuel Radoff Erv Rodemsky good intentions made new proposals Fl D model believe trying attain wrong way Mostly wonder such proposal submitted author out ever testing such model Let discuss pros cons reasoning methods 1 Stop destruction fragile models having smaller stornger Limit wingspan 50cm instead 60cm proposed Sixty cm enough smaller 65 make meaning fully smaller model Keeping gram minimum weight will result stronger model b limit total length Permit designer some latitude c smaller 50cm span does need area rule wide can make 50cm wing designer wishes fly tandem let its possibility explored d An area rule nightmare ways model can built larger presented templates An increase humidity can enlarge area built maximum Most microfilm models true geometric figures requiring measurements can easi ly result damage 2 Mass destruction heretofore unexplored idea namely no touch rule hereby offered solu tion model destruction penalty will applied model touches ceil ing ascent b heavier smaller model can better withstand launch torque c smaller heavier model will better withstand ballooning due drift d will better withstand shipping handling 3 Rubber weight limiting rubber weight inappropriate rule has told California fliers have tried gm rubber said resulted very poor flight times obtaining good rubber problem Erv presents Because wide discrepancies available rubber brand batch inclusion gm rubber weight rule unnecessarily re stricts modelers latitude use different qualities advantage 4 Limit flight times Ervs rubber weight limit surely meant smaller heav ier model will decrease flight time per mitting flying skill allowing choice rubber weight 5 Decrease model box size 50cm span 10cm smaller Ervs 60 permits box 20 inches square despite models length smaller heavier model plug-in booms can used weight penalty 6 The use gears mechanical gadgets Agreed should disallowed 7 Model processing a As mentioned area rule night mare b Span weight rules easily pro cessed 8 Extra fine premium balsa will less factoragreed So let state counterproposal mind simpler will better accom plish what want imposing sti fling design rules Lakehurst FiD Stick 1 Limit span 50cm monoplane 2 The minimum weight rubber motor shall gram 3 No-Touch Rules penalty minute shall deducted flight time time models parts touch ceiling ceiling girders ascent phase a A determination what parts flying site structure constitutes ceiling ceiling girders shall made Contest Director fliers before contest b Steering model ascent will permitted time possible better center ing c Creating air disturbance bal loon keep model touching will cause flight terminated can jeopardize another model d If its descent model drifts side may balloon-steered safety penalty conclusion believe no-touch rule answer destruction problem has eluded us 20 years significant proposal way go cordially recommend its consideration terested Fl D competitors Coincidentally John Triolo Bill Tyler independently suggested no-touch rule Bud Tenny ex perimented such rule Texas nothing evolved now idea time has come above presented comment write-in results favorable AMA can present FAI some time future proposal given FAI 1982 rules could officially adopted time 1984 Indoor World Championships Interested modelers vited send comments AMA HQ Attention Micheline Madison February 1982 93 Dave Kent Jerry Jerry coming out top lurung t - cal Ft hollering something pilot Greg cut pylon making easy opponent Ron Gilman win 7 caller Rusty Van Baren pilot Ron Gilman have looks intense concentration Ron won flyoff opponent cut pylon NC Sailplane Records San Fernando Valley Silent Flyers club has recently mounted all-out attack AMA National Records RC Sail planesand has great success study list national records published January 1982 issue reveals six members club currently hold 28 National Rec ords level performance no accident club got its act together stand point both models sanctioned Record Trials Some special equipment assembled too Stopwatches maps like easy enough get use Dura tion Distance categoriesbut about Altitude verification Competition Newsletter privileged able publish two brief articles written SFVSF members describing equip ment techniques used measuring altitude Sailplanes record attem pts Altitude Calculations SFVSF tor SFVSF Theodolite Record Trials Michael Bame Referring diagram Base Line c measured distance between two theodo lites Angles B azimuth angles measured theodolites Angles D E elevation angles measured theodolites altitude aircraft above ground h Since three angles triangle add up 1800 angle C equals 180 gles C B base c known Law Sines states ca sinCsinA b sin B Therefore n sin C bsin B sin C LD C Z T4EObOLTE San Fernando Valley Silent Flyers theodolite easily assembled commonly available parts used RC Sailplane altitude measurements clubs 1981 record-setting program has thus far resulted 28 national records thirdgeneration device developed over two-year period device designed built SFVSF members Ed Slobod Jerry Krainock Blame Rawdon Ed Slobod designed manufactures famous Pierce Arrow Paragon sailpianes Jerry Krainock has twice held world crosscountry distance record currently holds eight open declared national distance records including much-publicized 66-mile flight Blame Rawdon known modeling circles now kitted Mirage sailplane design Blame did design work Solar Challenger helped design build famous English Channelcrossing man-powered Gossamer Albatross SFVSF theodolite can put together anyone just few hours consists following sturdy camera tripod sturdy 1/8-in aluminum base plate sturdy 1/8-in aluminum tilting mechanism Miscellaneous screws nuts washers 360-degree protractor approximately elevation angles D E triangle leg lengths b known altitude h can calculated h h tanE tanD ab Rewriting expressions get 8-in diameter azimuth scale wire azimuth pointer 1 80-degree protractor also 8-in diameter elevation scale wire elevation pointer low-power 4x rifle scope built-in Dave Peltzcrosshairs AMA 968 cardboard tube eye end scope easier viewing Several Teflon washers use pivot points photo nearly self-explanatory critical areas 1 elevation pivot point must ex actly center elevation scale elevation erros will result 2 pointers stiff wires end ground point both tached aluminum arm turns baseplate Thus scope rotated and/or tilted both pointers move appropriate ly Angles can directly read 1/2 degree approximated nearly 1/10 degree 3 Make pivots such no looseness slop Teflon washers used tween sliding parts entire mechanism should loose enough moving plane may easily tracked same time must tight enough scope stays exact position placed having held hand using device use small bubble level placed base plate en sure base plate horizontal Also make azimuth readings easier sight through scope along base line other theodolite rotate base plate tripod zero degree azi muth reading set other theodolite view scope h tan E h b tan D Note two values h Ideal ly two would same al impossible occur because small errors tracking plane reading angles two values h averaged continued page 96 94 Model Aviation