U Soaring LI Dan Pruss ELMIRA NY sixth year Harris Hill Lift/Drag club hosted annual two-day contest Sept 10 & 11 atop historical mound full-scale gliding began nearly two generations ago Harris Hill faces northwest sixth year winds direc tion what thermal event started ended slope conditions Only year slightly different Early Saturday morning winds opposite direction briefing time weak cold front came through part program winds shifted contest director Dave Lear labeled slope event spot landing led nearly 100 fliers edge hill pointed valley below said Boys try fill up Rules simple point per second earned thermal contest Seven minutes task landing zone strip 25 feet 10 bonus 50 points earned plane came rest no portion fuselage out boundaries HHL/D gents have made several attempts over years encour age scale-like approaches landings years efforts direc tion However felt slightly less perfect placement model worth something between zero 50 because strong winds grass did enter model came rest during last second two Bob Baugher past editor Sailplane has taking contest circuit seriously past summer several wins second LSF regional tournament Pennsylvania end Saturday Bob flown modified Maestro top spot followed Gene Shelkey Sailaire Third Don Thermal Sniffler Clark much flown well proven Kurwi Saturday night banquetas pasttrophies presented days winners highlight cere mony presenting RC Soarings prestigious awardthe Steuben Eagle Walt Good honored year treasure until next year pity people dont get see sports manship award just trophy Crafted artists Steuben Glass kind piece doesnt have dollar value will presented six times will retired Schweizer Aircraft Company will put permanent display Its HHL/Ds contributions sport RC Soaring fine gesture Back hill Sunday conditions no different Saturday second straight day no winch solenoids energized tasks same HO gauge runway few fliers uttering words phrases found Frank Zaics Yearbooks Dick Beltz almost giant killer day two-meter ship original design slew Goliaths Unlimited Standard classes proved just might place twometer ships Dick placed third Wizard 72-in ship 560 sq Jr-Sr Bob Curry took top honors Aquila followed Ed Keck Fourth Fifth determined flyoff between Dwight Holley Gene Shel key Both fliers time second both groove what Continued page S6 January1978 25 Atop Harris Hill overlooking Chemung Valley New York State flight line tfl Annual Harris Hill LID contest included entrants far Colorado Florida heavy input East coast popular soaring meet attracted nearly 100 contestants Dick Beltz two-meter Wizard origi nal design fought bigger ships tooth nail 72-in wing 560 squares 32 os Somebody noticed Steuben EagleSoarings prestigious awardwas given Walt Good say morel Grand Champion Harris Hill Elmira meet Gene Shelkey piloted Craft-aire 7 lbs. rudder elevator spoilers RC Soaring/Pruss continued page 25 looked like perfect landings Holley Maestro Holley LSF regional winner Pennsylvania won Shelkeys Sailaire just eked out landing bound aries However Genes fifth place coupled second Saturday enough dub him Grand Champion week end Harris Hill boys stage contest filled full-scale sailplane action surprise two events excel lent banquet scenery breath taking Now can get gods fury side Fort Wayne md October 1 2 auu eugner ano Ills IvIeesIro ursi-plece wiiirier Oil diUUUY dl Sheeted wing Grand Esprit airfoil weight 70 oz. tne ship utilized elevator rudder spoiler flaperon controls LOFT League Flight Thermals held annual Cash Bash inter esting twist Ray Hayes company announced 30-minute cumulative contest No max flight time get three flights landings point per three inch rate Continued page 80 56 Model Aviation Scott Miller Class winner AMA Nats flew SD-i 00 Craft-Aire rudder elevator 100-in ship 1 lb ballast four eight rounds Pat Potega Class C winner AMA Nets Pierce Paragon gained him 15565 points Used two lbs ballast 12-ft ship afternoon winds came up Thermal sensor help ed find morning lift avoid sink during after noon slope conditions Rudder elevator Class B overall winner AMA Nats Skip Miller 5750 points modified Aquila same plane flew World Championship South Africa See Dec MA details RC Pylon/Lane continued page 23 brush maybe tack-rag remove traces sanding dust Now Secret #2 Thin small flat areas such slab tail edges trailing edges aileron cut-outs etc should covered first thin strips wrap around onto major part surface about ra step well worth time trouble otherwise main panel covering must wrapped around onto small areas much likely cause wrinkles come unstuck Also note now can complete surface hingings desire because hinge line already covered \L LING EDGE AILERON CUTOUT Now apply main panels Smooth out piece tack lightly along edges hold place Unless surface compound curve can keep pulling retacking until covering drum tight seal around outside open framework start center sheeted areas trapped air will pushed out ahead iron escape through pin holes Make sure ma terial firmly bonded wood will minimize later wrinkling out sun common complaint against plastic films air bubble does form prick center small pin reheat area Heat stretch around tips etc far enough bond previously ap plied edge strips razor off excess seal down cut edge compound curves present keep heating gently stretching until surface completed open framework final step run iron over surface complete shrinking Very little needed covering pulled taut enough earlier stages use smaller pieces material makes job easier DeLuca always uses small bits handle fillets difficult compound curves problem exists areas made plywood glassed such wing joint reinforcements epoxy resin-coated engine areas Monokote doesnt stick well surfaces An extremely light mist coat spray contact cement along edges will solve prob lem can also thin out bottled variety watery consistency lac quer thinner brush very light coat Keep smooth same trick also per mits covering aluminum struts landing gears rather trying paint Trim possible Super Monokote dry should used trim rather Monokote Trim Sheets sticky thin ner easier handle As mentioned before sheeted areas cut separate panels color rather using basic color large pieces overlaid trim necessary can done prob lem applying wide ter widths trim trapped air Work center outward push out air Prick bubbles pin pierce area covered pin just like sheeted surfaces done run iron over pierced Monokote before applying trim layer have found pulling out pin can leave raised edge around hole Now Lars trick Assume large trim area open framework structure BASE COLOR TRIM COLOR IHI WING NEL Note color separation line goes across three open rib bays procedure cover entire wing base color shrink tight cut off remove Monokote trim color area Now position trim color allowing some overlap base color Tack around edges carefully seal overlap Finish usual Hinging Monokote makes good hinges control surfaces beveled side sketches show tophinged aileron Good thin slab tails also SHIM NO1// NO2 1 Lay aileron back onto wing separating very thin cardboard thick paper shim Hold masking tape Iron strip Monokote shown #1 2 Move surface normal position tape end maintain slight gap iron -in strip over top #2 strip will bond onto exposed bot tom piece could omit top strip just iron entire top covering strip easier Final Notes Around firewall tank compartment etc best paint over edges Monokote epoxy insure wont peel up oil gets Also remember sticky trim sheet Monokote adhesive fuel-proof should sealed along edges epoxy polyurethane varnish Art Schroe der says flat finish can obtained wet sanding #400 paper followed hand buffing 00 steel wool Looks good lots elbow grease needed bubbles develop later after airplane has completed prick pin iron down Also iron out wrinkles develop opinion much wrinkling caused pulling ma terial drum-tight initially before ironing down open frames getting bonded properly sheeted surfaces air bubbles So thats Some procedures will slow down somewhat will also give better looking fuel-proof airplane Dave Lane 4477 1 36th Hawthorne CA 90250 RC Soaring/Pruss continued page 56 maximum 100 points kicker Once off tow flier flew alone no helper spot lift see earlier launches doing Timers assistants stand well away flier could give times contestant. Fort Wayne group contends better fliers tend help other better fliers new guy block usually has go alone lesser experienced good idea LOFTs part low ceilings 80 Model Aviation Checking out carburetor Cox 15-powered Royal Cobra Dale Yaney Rather high-aspect QM model another Bob Roots designs planes launching overcasts times very low wouldnt know recognizable bubble came through skies tried clear Jeff Mrlik famous Astro-Jeff famous Warren Tiahrt SD-lO0 got highest times day won respective classes Jeff just over 28-minute mark three flights 1933 out possible 2100 point score Tiahrt scored 1576 Second placers nearly 250 points behind both classes day big sailplanes flew better Though clubs arent favor cash prizes contest awards its worth mentioning LOFTs approach annual Cash Bash Twenty percent entry fees goes winner ten percent awarded second third fourth place remaining 50 percent goes club contestants bigger take Conversely attendance low prize money club hasnt stuck out its financial neck table full trophies hardware system has worked four years now Jeff Mrlik won Unlimited class Saturday took two firsts Sun day went back Detroit $62 ahead San Fernando Valley Silent Flyers Blame Rawdon California comes report different kind contest task club put past summer object contest cross measure ment gate highest possible altitude time within allotted time period Three four planes launched simul taneously fly gate pilot declares cross two angle meas urers using sighting devices measure angles normally would time con suming calculation pocket calculator HP-21 used prob lem takes about 15 seconds Altitude measurement parallax method found calculating h THE GATE Bsines*n0 sine0 H 9090 e0 B angle measuring apparatus rather simple device picture will appear column next month Scoring based 1000 points highest altitude flier group others score percentage winner next month about Seattle Washington North West Soaring Societys area contest manager Green Lake Soaring Society Bar bara Barker reports triathalon annual number fliers griping about poor percentages attained flying tri athalon mention enough flying time contests Dave Banks gave what-for amassed 90 minutes two seconds flying time nine rounds flying also reported group Victoria Canada also very much part NWSS recent contests has given troops across border fits also competing against other see will first outside USA LSF level V Barbara also goes say contestant asked put birthdate year entry forms claims snap conclusions indicate Virgos dont fly Capricorns leave early after tiring themselves shagging lines Can see major contest some years now. ome Tenth World Soaring Tournament ras will fly first heat. second. Capricorns will time Scorpiosbut once. now awards hest score Aquariusin two-meter classin Senior Categoryin low biorhythm category. hy manufacturers will doing handstands Dan Pruss Route 2 Box 490 Plainfleld IL 60544 Openers continued page 4 forms modeling steers away mere popular appeal Great RC jobs like Nelitzs Chipmunk Saugers Fairchild may always lead way expect see occasional Speed job Indoor model Rubber job other sup posedly low-appeal types Although ing popular top priority hope like us want re spect Aerodynamics design articles bane staffs existence People forever charging editors neglect doing about black art aerodynamics alas venture some author editor get picked apart formulae hit printed page Now determined virtual Willie Messerschmitt will talk about science flightas applies models Thats rubas applies models modeler writes about design engineers sometimes swoon hys terically vice versa So rubbing rabbits foot manning bar ricades weve decided let Brad Powers have say About Size see pg 8 Brad went work Consolidated San Diego 1939 Since very few bona fide aeronautical engineers found days engineering de partments aircraft companies consist ed largely architects civil engineers electrical engineers geologists pursuing in-plant educational facili ties provided universities able augment education ex tensive programs aeronautical engi neering After three years detail design wing tail structures moved Preliminary Design Group next 10 years played important role development variety projects including B24 B32 B36 B46 bombers supersonic Hust ler Flying boat designs developed dur ing time included R-3y Skate Sea Dart two high-per formance jet-powered seaplanes Pogo delta could fly straight up 14000 ft/min developed result availability 20000 lb thrust turbo-prop engines Other inter esting aircraft included F-102 delta82 Model Aviation Dwight Holley says Call Gene Shelkey determine choice landing zones Gene won call Dwight fiyoff Dave Burt looks diagram below
Edition: Model Aviation - 1978/01
Page Numbers: 25, 56, 80, 82
U Soaring LI Dan Pruss ELMIRA NY sixth year Harris Hill Lift/Drag club hosted annual two-day contest Sept 10 & 11 atop historical mound full-scale gliding began nearly two generations ago Harris Hill faces northwest sixth year winds direc tion what thermal event started ended slope conditions Only year slightly different Early Saturday morning winds opposite direction briefing time weak cold front came through part program winds shifted contest director Dave Lear labeled slope event spot landing led nearly 100 fliers edge hill pointed valley below said Boys try fill up Rules simple point per second earned thermal contest Seven minutes task landing zone strip 25 feet 10 bonus 50 points earned plane came rest no portion fuselage out boundaries HHL/D gents have made several attempts over years encour age scale-like approaches landings years efforts direc tion However felt slightly less perfect placement model worth something between zero 50 because strong winds grass did enter model came rest during last second two Bob Baugher past editor Sailplane has taking contest circuit seriously past summer several wins second LSF regional tournament Pennsylvania end Saturday Bob flown modified Maestro top spot followed Gene Shelkey Sailaire Third Don Thermal Sniffler Clark much flown well proven Kurwi Saturday night banquetas pasttrophies presented days winners highlight cere mony presenting RC Soarings prestigious awardthe Steuben Eagle Walt Good honored year treasure until next year pity people dont get see sports manship award just trophy Crafted artists Steuben Glass kind piece doesnt have dollar value will presented six times will retired Schweizer Aircraft Company will put permanent display Its HHL/Ds contributions sport RC Soaring fine gesture Back hill Sunday conditions no different Saturday second straight day no winch solenoids energized tasks same HO gauge runway few fliers uttering words phrases found Frank Zaics Yearbooks Dick Beltz almost giant killer day two-meter ship original design slew Goliaths Unlimited Standard classes proved just might place twometer ships Dick placed third Wizard 72-in ship 560 sq Jr-Sr Bob Curry took top honors Aquila followed Ed Keck Fourth Fifth determined flyoff between Dwight Holley Gene Shel key Both fliers time second both groove what Continued page S6 January1978 25 Atop Harris Hill overlooking Chemung Valley New York State flight line tfl Annual Harris Hill LID contest included entrants far Colorado Florida heavy input East coast popular soaring meet attracted nearly 100 contestants Dick Beltz two-meter Wizard origi nal design fought bigger ships tooth nail 72-in wing 560 squares 32 os Somebody noticed Steuben EagleSoarings prestigious awardwas given Walt Good say morel Grand Champion Harris Hill Elmira meet Gene Shelkey piloted Craft-aire 7 lbs. rudder elevator spoilers RC Soaring/Pruss continued page 25 looked like perfect landings Holley Maestro Holley LSF regional winner Pennsylvania won Shelkeys Sailaire just eked out landing bound aries However Genes fifth place coupled second Saturday enough dub him Grand Champion week end Harris Hill boys stage contest filled full-scale sailplane action surprise two events excel lent banquet scenery breath taking Now can get gods fury side Fort Wayne md October 1 2 auu eugner ano Ills IvIeesIro ursi-plece wiiirier Oil diUUUY dl Sheeted wing Grand Esprit airfoil weight 70 oz. tne ship utilized elevator rudder spoiler flaperon controls LOFT League Flight Thermals held annual Cash Bash inter esting twist Ray Hayes company announced 30-minute cumulative contest No max flight time get three flights landings point per three inch rate Continued page 80 56 Model Aviation Scott Miller Class winner AMA Nats flew SD-i 00 Craft-Aire rudder elevator 100-in ship 1 lb ballast four eight rounds Pat Potega Class C winner AMA Nets Pierce Paragon gained him 15565 points Used two lbs ballast 12-ft ship afternoon winds came up Thermal sensor help ed find morning lift avoid sink during after noon slope conditions Rudder elevator Class B overall winner AMA Nats Skip Miller 5750 points modified Aquila same plane flew World Championship South Africa See Dec MA details RC Pylon/Lane continued page 23 brush maybe tack-rag remove traces sanding dust Now Secret #2 Thin small flat areas such slab tail edges trailing edges aileron cut-outs etc should covered first thin strips wrap around onto major part surface about ra step well worth time trouble otherwise main panel covering must wrapped around onto small areas much likely cause wrinkles come unstuck Also note now can complete surface hingings desire because hinge line already covered \L LING EDGE AILERON CUTOUT Now apply main panels Smooth out piece tack lightly along edges hold place Unless surface compound curve can keep pulling retacking until covering drum tight seal around outside open framework start center sheeted areas trapped air will pushed out ahead iron escape through pin holes Make sure ma terial firmly bonded wood will minimize later wrinkling out sun common complaint against plastic films air bubble does form prick center small pin reheat area Heat stretch around tips etc far enough bond previously ap plied edge strips razor off excess seal down cut edge compound curves present keep heating gently stretching until surface completed open framework final step run iron over surface complete shrinking Very little needed covering pulled taut enough earlier stages use smaller pieces material makes job easier DeLuca always uses small bits handle fillets difficult compound curves problem exists areas made plywood glassed such wing joint reinforcements epoxy resin-coated engine areas Monokote doesnt stick well surfaces An extremely light mist coat spray contact cement along edges will solve prob lem can also thin out bottled variety watery consistency lac quer thinner brush very light coat Keep smooth same trick also per mits covering aluminum struts landing gears rather trying paint Trim possible Super Monokote dry should used trim rather Monokote Trim Sheets sticky thin ner easier handle As mentioned before sheeted areas cut separate panels color rather using basic color large pieces overlaid trim necessary can done prob lem applying wide ter widths trim trapped air Work center outward push out air Prick bubbles pin pierce area covered pin just like sheeted surfaces done run iron over pierced Monokote before applying trim layer have found pulling out pin can leave raised edge around hole Now Lars trick Assume large trim area open framework structure BASE COLOR TRIM COLOR IHI WING NEL Note color separation line goes across three open rib bays procedure cover entire wing base color shrink tight cut off remove Monokote trim color area Now position trim color allowing some overlap base color Tack around edges carefully seal overlap Finish usual Hinging Monokote makes good hinges control surfaces beveled side sketches show tophinged aileron Good thin slab tails also SHIM NO1// NO2 1 Lay aileron back onto wing separating very thin cardboard thick paper shim Hold masking tape Iron strip Monokote shown #1 2 Move surface normal position tape end maintain slight gap iron -in strip over top #2 strip will bond onto exposed bot tom piece could omit top strip just iron entire top covering strip easier Final Notes Around firewall tank compartment etc best paint over edges Monokote epoxy insure wont peel up oil gets Also remember sticky trim sheet Monokote adhesive fuel-proof should sealed along edges epoxy polyurethane varnish Art Schroe der says flat finish can obtained wet sanding #400 paper followed hand buffing 00 steel wool Looks good lots elbow grease needed bubbles develop later after airplane has completed prick pin iron down Also iron out wrinkles develop opinion much wrinkling caused pulling ma terial drum-tight initially before ironing down open frames getting bonded properly sheeted surfaces air bubbles So thats Some procedures will slow down somewhat will also give better looking fuel-proof airplane Dave Lane 4477 1 36th Hawthorne CA 90250 RC Soaring/Pruss continued page 56 maximum 100 points kicker Once off tow flier flew alone no helper spot lift see earlier launches doing Timers assistants stand well away flier could give times contestant. Fort Wayne group contends better fliers tend help other better fliers new guy block usually has go alone lesser experienced good idea LOFTs part low ceilings 80 Model Aviation Checking out carburetor Cox 15-powered Royal Cobra Dale Yaney Rather high-aspect QM model another Bob Roots designs planes launching overcasts times very low wouldnt know recognizable bubble came through skies tried clear Jeff Mrlik famous Astro-Jeff famous Warren Tiahrt SD-lO0 got highest times day won respective classes Jeff just over 28-minute mark three flights 1933 out possible 2100 point score Tiahrt scored 1576 Second placers nearly 250 points behind both classes day big sailplanes flew better Though clubs arent favor cash prizes contest awards its worth mentioning LOFTs approach annual Cash Bash Twenty percent entry fees goes winner ten percent awarded second third fourth place remaining 50 percent goes club contestants bigger take Conversely attendance low prize money club hasnt stuck out its financial neck table full trophies hardware system has worked four years now Jeff Mrlik won Unlimited class Saturday took two firsts Sun day went back Detroit $62 ahead San Fernando Valley Silent Flyers Blame Rawdon California comes report different kind contest task club put past summer object contest cross measure ment gate highest possible altitude time within allotted time period Three four planes launched simul taneously fly gate pilot declares cross two angle meas urers using sighting devices measure angles normally would time con suming calculation pocket calculator HP-21 used prob lem takes about 15 seconds Altitude measurement parallax method found calculating h THE GATE Bsines*n0 sine0 H 9090 e0 B angle measuring apparatus rather simple device picture will appear column next month Scoring based 1000 points highest altitude flier group others score percentage winner next month about Seattle Washington North West Soaring Societys area contest manager Green Lake Soaring Society Bar bara Barker reports triathalon annual number fliers griping about poor percentages attained flying tri athalon mention enough flying time contests Dave Banks gave what-for amassed 90 minutes two seconds flying time nine rounds flying also reported group Victoria Canada also very much part NWSS recent contests has given troops across border fits also competing against other see will first outside USA LSF level V Barbara also goes say contestant asked put birthdate year entry forms claims snap conclusions indicate Virgos dont fly Capricorns leave early after tiring themselves shagging lines Can see major contest some years now. ome Tenth World Soaring Tournament ras will fly first heat. second. Capricorns will time Scorpiosbut once. now awards hest score Aquariusin two-meter classin Senior Categoryin low biorhythm category. hy manufacturers will doing handstands Dan Pruss Route 2 Box 490 Plainfleld IL 60544 Openers continued page 4 forms modeling steers away mere popular appeal Great RC jobs like Nelitzs Chipmunk Saugers Fairchild may always lead way expect see occasional Speed job Indoor model Rubber job other sup posedly low-appeal types Although ing popular top priority hope like us want re spect Aerodynamics design articles bane staffs existence People forever charging editors neglect doing about black art aerodynamics alas venture some author editor get picked apart formulae hit printed page Now determined virtual Willie Messerschmitt will talk about science flightas applies models Thats rubas applies models modeler writes about design engineers sometimes swoon hys terically vice versa So rubbing rabbits foot manning bar ricades weve decided let Brad Powers have say About Size see pg 8 Brad went work Consolidated San Diego 1939 Since very few bona fide aeronautical engineers found days engineering de partments aircraft companies consist ed largely architects civil engineers electrical engineers geologists pursuing in-plant educational facili ties provided universities able augment education ex tensive programs aeronautical engi neering After three years detail design wing tail structures moved Preliminary Design Group next 10 years played important role development variety projects including B24 B32 B36 B46 bombers supersonic Hust ler Flying boat designs developed dur ing time included R-3y Skate Sea Dart two high-per formance jet-powered seaplanes Pogo delta could fly straight up 14000 ft/min developed result availability 20000 lb thrust turbo-prop engines Other inter esting aircraft included F-102 delta82 Model Aviation Dwight Holley says Call Gene Shelkey determine choice landing zones Gene won call Dwight fiyoff Dave Burt looks diagram below
Edition: Model Aviation - 1978/01
Page Numbers: 25, 56, 80, 82
U Soaring LI Dan Pruss ELMIRA NY sixth year Harris Hill Lift/Drag club hosted annual two-day contest Sept 10 & 11 atop historical mound full-scale gliding began nearly two generations ago Harris Hill faces northwest sixth year winds direc tion what thermal event started ended slope conditions Only year slightly different Early Saturday morning winds opposite direction briefing time weak cold front came through part program winds shifted contest director Dave Lear labeled slope event spot landing led nearly 100 fliers edge hill pointed valley below said Boys try fill up Rules simple point per second earned thermal contest Seven minutes task landing zone strip 25 feet 10 bonus 50 points earned plane came rest no portion fuselage out boundaries HHL/D gents have made several attempts over years encour age scale-like approaches landings years efforts direc tion However felt slightly less perfect placement model worth something between zero 50 because strong winds grass did enter model came rest during last second two Bob Baugher past editor Sailplane has taking contest circuit seriously past summer several wins second LSF regional tournament Pennsylvania end Saturday Bob flown modified Maestro top spot followed Gene Shelkey Sailaire Third Don Thermal Sniffler Clark much flown well proven Kurwi Saturday night banquetas pasttrophies presented days winners highlight cere mony presenting RC Soarings prestigious awardthe Steuben Eagle Walt Good honored year treasure until next year pity people dont get see sports manship award just trophy Crafted artists Steuben Glass kind piece doesnt have dollar value will presented six times will retired Schweizer Aircraft Company will put permanent display Its HHL/Ds contributions sport RC Soaring fine gesture Back hill Sunday conditions no different Saturday second straight day no winch solenoids energized tasks same HO gauge runway few fliers uttering words phrases found Frank Zaics Yearbooks Dick Beltz almost giant killer day two-meter ship original design slew Goliaths Unlimited Standard classes proved just might place twometer ships Dick placed third Wizard 72-in ship 560 sq Jr-Sr Bob Curry took top honors Aquila followed Ed Keck Fourth Fifth determined flyoff between Dwight Holley Gene Shel key Both fliers time second both groove what Continued page S6 January1978 25 Atop Harris Hill overlooking Chemung Valley New York State flight line tfl Annual Harris Hill LID contest included entrants far Colorado Florida heavy input East coast popular soaring meet attracted nearly 100 contestants Dick Beltz two-meter Wizard origi nal design fought bigger ships tooth nail 72-in wing 560 squares 32 os Somebody noticed Steuben EagleSoarings prestigious awardwas given Walt Good say morel Grand Champion Harris Hill Elmira meet Gene Shelkey piloted Craft-aire 7 lbs. rudder elevator spoilers RC Soaring/Pruss continued page 25 looked like perfect landings Holley Maestro Holley LSF regional winner Pennsylvania won Shelkeys Sailaire just eked out landing bound aries However Genes fifth place coupled second Saturday enough dub him Grand Champion week end Harris Hill boys stage contest filled full-scale sailplane action surprise two events excel lent banquet scenery breath taking Now can get gods fury side Fort Wayne md October 1 2 auu eugner ano Ills IvIeesIro ursi-plece wiiirier Oil diUUUY dl Sheeted wing Grand Esprit airfoil weight 70 oz. tne ship utilized elevator rudder spoiler flaperon controls LOFT League Flight Thermals held annual Cash Bash inter esting twist Ray Hayes company announced 30-minute cumulative contest No max flight time get three flights landings point per three inch rate Continued page 80 56 Model Aviation Scott Miller Class winner AMA Nats flew SD-i 00 Craft-Aire rudder elevator 100-in ship 1 lb ballast four eight rounds Pat Potega Class C winner AMA Nets Pierce Paragon gained him 15565 points Used two lbs ballast 12-ft ship afternoon winds came up Thermal sensor help ed find morning lift avoid sink during after noon slope conditions Rudder elevator Class B overall winner AMA Nats Skip Miller 5750 points modified Aquila same plane flew World Championship South Africa See Dec MA details RC Pylon/Lane continued page 23 brush maybe tack-rag remove traces sanding dust Now Secret #2 Thin small flat areas such slab tail edges trailing edges aileron cut-outs etc should covered first thin strips wrap around onto major part surface about ra step well worth time trouble otherwise main panel covering must wrapped around onto small areas much likely cause wrinkles come unstuck Also note now can complete surface hingings desire because hinge line already covered \L LING EDGE AILERON CUTOUT Now apply main panels Smooth out piece tack lightly along edges hold place Unless surface compound curve can keep pulling retacking until covering drum tight seal around outside open framework start center sheeted areas trapped air will pushed out ahead iron escape through pin holes Make sure ma terial firmly bonded wood will minimize later wrinkling out sun common complaint against plastic films air bubble does form prick center small pin reheat area Heat stretch around tips etc far enough bond previously ap plied edge strips razor off excess seal down cut edge compound curves present keep heating gently stretching until surface completed open framework final step run iron over surface complete shrinking Very little needed covering pulled taut enough earlier stages use smaller pieces material makes job easier DeLuca always uses small bits handle fillets difficult compound curves problem exists areas made plywood glassed such wing joint reinforcements epoxy resin-coated engine areas Monokote doesnt stick well surfaces An extremely light mist coat spray contact cement along edges will solve prob lem can also thin out bottled variety watery consistency lac quer thinner brush very light coat Keep smooth same trick also per mits covering aluminum struts landing gears rather trying paint Trim possible Super Monokote dry should used trim rather Monokote Trim Sheets sticky thin ner easier handle As mentioned before sheeted areas cut separate panels color rather using basic color large pieces overlaid trim necessary can done prob lem applying wide ter widths trim trapped air Work center outward push out air Prick bubbles pin pierce area covered pin just like sheeted surfaces done run iron over pierced Monokote before applying trim layer have found pulling out pin can leave raised edge around hole Now Lars trick Assume large trim area open framework structure BASE COLOR TRIM COLOR IHI WING NEL Note color separation line goes across three open rib bays procedure cover entire wing base color shrink tight cut off remove Monokote trim color area Now position trim color allowing some overlap base color Tack around edges carefully seal overlap Finish usual Hinging Monokote makes good hinges control surfaces beveled side sketches show tophinged aileron Good thin slab tails also SHIM NO1// NO2 1 Lay aileron back onto wing separating very thin cardboard thick paper shim Hold masking tape Iron strip Monokote shown #1 2 Move surface normal position tape end maintain slight gap iron -in strip over top #2 strip will bond onto exposed bot tom piece could omit top strip just iron entire top covering strip easier Final Notes Around firewall tank compartment etc best paint over edges Monokote epoxy insure wont peel up oil gets Also remember sticky trim sheet Monokote adhesive fuel-proof should sealed along edges epoxy polyurethane varnish Art Schroe der says flat finish can obtained wet sanding #400 paper followed hand buffing 00 steel wool Looks good lots elbow grease needed bubbles develop later after airplane has completed prick pin iron down Also iron out wrinkles develop opinion much wrinkling caused pulling ma terial drum-tight initially before ironing down open frames getting bonded properly sheeted surfaces air bubbles So thats Some procedures will slow down somewhat will also give better looking fuel-proof airplane Dave Lane 4477 1 36th Hawthorne CA 90250 RC Soaring/Pruss continued page 56 maximum 100 points kicker Once off tow flier flew alone no helper spot lift see earlier launches doing Timers assistants stand well away flier could give times contestant. Fort Wayne group contends better fliers tend help other better fliers new guy block usually has go alone lesser experienced good idea LOFTs part low ceilings 80 Model Aviation Checking out carburetor Cox 15-powered Royal Cobra Dale Yaney Rather high-aspect QM model another Bob Roots designs planes launching overcasts times very low wouldnt know recognizable bubble came through skies tried clear Jeff Mrlik famous Astro-Jeff famous Warren Tiahrt SD-lO0 got highest times day won respective classes Jeff just over 28-minute mark three flights 1933 out possible 2100 point score Tiahrt scored 1576 Second placers nearly 250 points behind both classes day big sailplanes flew better Though clubs arent favor cash prizes contest awards its worth mentioning LOFTs approach annual Cash Bash Twenty percent entry fees goes winner ten percent awarded second third fourth place remaining 50 percent goes club contestants bigger take Conversely attendance low prize money club hasnt stuck out its financial neck table full trophies hardware system has worked four years now Jeff Mrlik won Unlimited class Saturday took two firsts Sun day went back Detroit $62 ahead San Fernando Valley Silent Flyers Blame Rawdon California comes report different kind contest task club put past summer object contest cross measure ment gate highest possible altitude time within allotted time period Three four planes launched simul taneously fly gate pilot declares cross two angle meas urers using sighting devices measure angles normally would time con suming calculation pocket calculator HP-21 used prob lem takes about 15 seconds Altitude measurement parallax method found calculating h THE GATE Bsines*n0 sine0 H 9090 e0 B angle measuring apparatus rather simple device picture will appear column next month Scoring based 1000 points highest altitude flier group others score percentage winner next month about Seattle Washington North West Soaring Societys area contest manager Green Lake Soaring Society Bar bara Barker reports triathalon annual number fliers griping about poor percentages attained flying tri athalon mention enough flying time contests Dave Banks gave what-for amassed 90 minutes two seconds flying time nine rounds flying also reported group Victoria Canada also very much part NWSS recent contests has given troops across border fits also competing against other see will first outside USA LSF level V Barbara also goes say contestant asked put birthdate year entry forms claims snap conclusions indicate Virgos dont fly Capricorns leave early after tiring themselves shagging lines Can see major contest some years now. ome Tenth World Soaring Tournament ras will fly first heat. second. Capricorns will time Scorpiosbut once. now awards hest score Aquariusin two-meter classin Senior Categoryin low biorhythm category. hy manufacturers will doing handstands Dan Pruss Route 2 Box 490 Plainfleld IL 60544 Openers continued page 4 forms modeling steers away mere popular appeal Great RC jobs like Nelitzs Chipmunk Saugers Fairchild may always lead way expect see occasional Speed job Indoor model Rubber job other sup posedly low-appeal types Although ing popular top priority hope like us want re spect Aerodynamics design articles bane staffs existence People forever charging editors neglect doing about black art aerodynamics alas venture some author editor get picked apart formulae hit printed page Now determined virtual Willie Messerschmitt will talk about science flightas applies models Thats rubas applies models modeler writes about design engineers sometimes swoon hys terically vice versa So rubbing rabbits foot manning bar ricades weve decided let Brad Powers have say About Size see pg 8 Brad went work Consolidated San Diego 1939 Since very few bona fide aeronautical engineers found days engineering de partments aircraft companies consist ed largely architects civil engineers electrical engineers geologists pursuing in-plant educational facili ties provided universities able augment education ex tensive programs aeronautical engi neering After three years detail design wing tail structures moved Preliminary Design Group next 10 years played important role development variety projects including B24 B32 B36 B46 bombers supersonic Hust ler Flying boat designs developed dur ing time included R-3y Skate Sea Dart two high-per formance jet-powered seaplanes Pogo delta could fly straight up 14000 ft/min developed result availability 20000 lb thrust turbo-prop engines Other inter esting aircraft included F-102 delta82 Model Aviation Dwight Holley says Call Gene Shelkey determine choice landing zones Gene won call Dwight fiyoff Dave Burt looks diagram below
Edition: Model Aviation - 1978/01
Page Numbers: 25, 56, 80, 82
U Soaring LI Dan Pruss ELMIRA NY sixth year Harris Hill Lift/Drag club hosted annual two-day contest Sept 10 & 11 atop historical mound full-scale gliding began nearly two generations ago Harris Hill faces northwest sixth year winds direc tion what thermal event started ended slope conditions Only year slightly different Early Saturday morning winds opposite direction briefing time weak cold front came through part program winds shifted contest director Dave Lear labeled slope event spot landing led nearly 100 fliers edge hill pointed valley below said Boys try fill up Rules simple point per second earned thermal contest Seven minutes task landing zone strip 25 feet 10 bonus 50 points earned plane came rest no portion fuselage out boundaries HHL/D gents have made several attempts over years encour age scale-like approaches landings years efforts direc tion However felt slightly less perfect placement model worth something between zero 50 because strong winds grass did enter model came rest during last second two Bob Baugher past editor Sailplane has taking contest circuit seriously past summer several wins second LSF regional tournament Pennsylvania end Saturday Bob flown modified Maestro top spot followed Gene Shelkey Sailaire Third Don Thermal Sniffler Clark much flown well proven Kurwi Saturday night banquetas pasttrophies presented days winners highlight cere mony presenting RC Soarings prestigious awardthe Steuben Eagle Walt Good honored year treasure until next year pity people dont get see sports manship award just trophy Crafted artists Steuben Glass kind piece doesnt have dollar value will presented six times will retired Schweizer Aircraft Company will put permanent display Its HHL/Ds contributions sport RC Soaring fine gesture Back hill Sunday conditions no different Saturday second straight day no winch solenoids energized tasks same HO gauge runway few fliers uttering words phrases found Frank Zaics Yearbooks Dick Beltz almost giant killer day two-meter ship original design slew Goliaths Unlimited Standard classes proved just might place twometer ships Dick placed third Wizard 72-in ship 560 sq Jr-Sr Bob Curry took top honors Aquila followed Ed Keck Fourth Fifth determined flyoff between Dwight Holley Gene Shel key Both fliers time second both groove what Continued page S6 January1978 25 Atop Harris Hill overlooking Chemung Valley New York State flight line tfl Annual Harris Hill LID contest included entrants far Colorado Florida heavy input East coast popular soaring meet attracted nearly 100 contestants Dick Beltz two-meter Wizard origi nal design fought bigger ships tooth nail 72-in wing 560 squares 32 os Somebody noticed Steuben EagleSoarings prestigious awardwas given Walt Good say morel Grand Champion Harris Hill Elmira meet Gene Shelkey piloted Craft-aire 7 lbs. rudder elevator spoilers RC Soaring/Pruss continued page 25 looked like perfect landings Holley Maestro Holley LSF regional winner Pennsylvania won Shelkeys Sailaire just eked out landing bound aries However Genes fifth place coupled second Saturday enough dub him Grand Champion week end Harris Hill boys stage contest filled full-scale sailplane action surprise two events excel lent banquet scenery breath taking Now can get gods fury side Fort Wayne md October 1 2 auu eugner ano Ills IvIeesIro ursi-plece wiiirier Oil diUUUY dl Sheeted wing Grand Esprit airfoil weight 70 oz. tne ship utilized elevator rudder spoiler flaperon controls LOFT League Flight Thermals held annual Cash Bash inter esting twist Ray Hayes company announced 30-minute cumulative contest No max flight time get three flights landings point per three inch rate Continued page 80 56 Model Aviation Scott Miller Class winner AMA Nats flew SD-i 00 Craft-Aire rudder elevator 100-in ship 1 lb ballast four eight rounds Pat Potega Class C winner AMA Nets Pierce Paragon gained him 15565 points Used two lbs ballast 12-ft ship afternoon winds came up Thermal sensor help ed find morning lift avoid sink during after noon slope conditions Rudder elevator Class B overall winner AMA Nats Skip Miller 5750 points modified Aquila same plane flew World Championship South Africa See Dec MA details RC Pylon/Lane continued page 23 brush maybe tack-rag remove traces sanding dust Now Secret #2 Thin small flat areas such slab tail edges trailing edges aileron cut-outs etc should covered first thin strips wrap around onto major part surface about ra step well worth time trouble otherwise main panel covering must wrapped around onto small areas much likely cause wrinkles come unstuck Also note now can complete surface hingings desire because hinge line already covered \L LING EDGE AILERON CUTOUT Now apply main panels Smooth out piece tack lightly along edges hold place Unless surface compound curve can keep pulling retacking until covering drum tight seal around outside open framework start center sheeted areas trapped air will pushed out ahead iron escape through pin holes Make sure ma terial firmly bonded wood will minimize later wrinkling out sun common complaint against plastic films air bubble does form prick center small pin reheat area Heat stretch around tips etc far enough bond previously ap plied edge strips razor off excess seal down cut edge compound curves present keep heating gently stretching until surface completed open framework final step run iron over surface complete shrinking Very little needed covering pulled taut enough earlier stages use smaller pieces material makes job easier DeLuca always uses small bits handle fillets difficult compound curves problem exists areas made plywood glassed such wing joint reinforcements epoxy resin-coated engine areas Monokote doesnt stick well surfaces An extremely light mist coat spray contact cement along edges will solve prob lem can also thin out bottled variety watery consistency lac quer thinner brush very light coat Keep smooth same trick also per mits covering aluminum struts landing gears rather trying paint Trim possible Super Monokote dry should used trim rather Monokote Trim Sheets sticky thin ner easier handle As mentioned before sheeted areas cut separate panels color rather using basic color large pieces overlaid trim necessary can done prob lem applying wide ter widths trim trapped air Work center outward push out air Prick bubbles pin pierce area covered pin just like sheeted surfaces done run iron over pierced Monokote before applying trim layer have found pulling out pin can leave raised edge around hole Now Lars trick Assume large trim area open framework structure BASE COLOR TRIM COLOR IHI WING NEL Note color separation line goes across three open rib bays procedure cover entire wing base color shrink tight cut off remove Monokote trim color area Now position trim color allowing some overlap base color Tack around edges carefully seal overlap Finish usual Hinging Monokote makes good hinges control surfaces beveled side sketches show tophinged aileron Good thin slab tails also SHIM NO1// NO2 1 Lay aileron back onto wing separating very thin cardboard thick paper shim Hold masking tape Iron strip Monokote shown #1 2 Move surface normal position tape end maintain slight gap iron -in strip over top #2 strip will bond onto exposed bot tom piece could omit top strip just iron entire top covering strip easier Final Notes Around firewall tank compartment etc best paint over edges Monokote epoxy insure wont peel up oil gets Also remember sticky trim sheet Monokote adhesive fuel-proof should sealed along edges epoxy polyurethane varnish Art Schroe der says flat finish can obtained wet sanding #400 paper followed hand buffing 00 steel wool Looks good lots elbow grease needed bubbles develop later after airplane has completed prick pin iron down Also iron out wrinkles develop opinion much wrinkling caused pulling ma terial drum-tight initially before ironing down open frames getting bonded properly sheeted surfaces air bubbles So thats Some procedures will slow down somewhat will also give better looking fuel-proof airplane Dave Lane 4477 1 36th Hawthorne CA 90250 RC Soaring/Pruss continued page 56 maximum 100 points kicker Once off tow flier flew alone no helper spot lift see earlier launches doing Timers assistants stand well away flier could give times contestant. Fort Wayne group contends better fliers tend help other better fliers new guy block usually has go alone lesser experienced good idea LOFTs part low ceilings 80 Model Aviation Checking out carburetor Cox 15-powered Royal Cobra Dale Yaney Rather high-aspect QM model another Bob Roots designs planes launching overcasts times very low wouldnt know recognizable bubble came through skies tried clear Jeff Mrlik famous Astro-Jeff famous Warren Tiahrt SD-lO0 got highest times day won respective classes Jeff just over 28-minute mark three flights 1933 out possible 2100 point score Tiahrt scored 1576 Second placers nearly 250 points behind both classes day big sailplanes flew better Though clubs arent favor cash prizes contest awards its worth mentioning LOFTs approach annual Cash Bash Twenty percent entry fees goes winner ten percent awarded second third fourth place remaining 50 percent goes club contestants bigger take Conversely attendance low prize money club hasnt stuck out its financial neck table full trophies hardware system has worked four years now Jeff Mrlik won Unlimited class Saturday took two firsts Sun day went back Detroit $62 ahead San Fernando Valley Silent Flyers Blame Rawdon California comes report different kind contest task club put past summer object contest cross measure ment gate highest possible altitude time within allotted time period Three four planes launched simul taneously fly gate pilot declares cross two angle meas urers using sighting devices measure angles normally would time con suming calculation pocket calculator HP-21 used prob lem takes about 15 seconds Altitude measurement parallax method found calculating h THE GATE Bsines*n0 sine0 H 9090 e0 B angle measuring apparatus rather simple device picture will appear column next month Scoring based 1000 points highest altitude flier group others score percentage winner next month about Seattle Washington North West Soaring Societys area contest manager Green Lake Soaring Society Bar bara Barker reports triathalon annual number fliers griping about poor percentages attained flying tri athalon mention enough flying time contests Dave Banks gave what-for amassed 90 minutes two seconds flying time nine rounds flying also reported group Victoria Canada also very much part NWSS recent contests has given troops across border fits also competing against other see will first outside USA LSF level V Barbara also goes say contestant asked put birthdate year entry forms claims snap conclusions indicate Virgos dont fly Capricorns leave early after tiring themselves shagging lines Can see major contest some years now. ome Tenth World Soaring Tournament ras will fly first heat. second. Capricorns will time Scorpiosbut once. now awards hest score Aquariusin two-meter classin Senior Categoryin low biorhythm category. hy manufacturers will doing handstands Dan Pruss Route 2 Box 490 Plainfleld IL 60544 Openers continued page 4 forms modeling steers away mere popular appeal Great RC jobs like Nelitzs Chipmunk Saugers Fairchild may always lead way expect see occasional Speed job Indoor model Rubber job other sup posedly low-appeal types Although ing popular top priority hope like us want re spect Aerodynamics design articles bane staffs existence People forever charging editors neglect doing about black art aerodynamics alas venture some author editor get picked apart formulae hit printed page Now determined virtual Willie Messerschmitt will talk about science flightas applies models Thats rubas applies models modeler writes about design engineers sometimes swoon hys terically vice versa So rubbing rabbits foot manning bar ricades weve decided let Brad Powers have say About Size see pg 8 Brad went work Consolidated San Diego 1939 Since very few bona fide aeronautical engineers found days engineering de partments aircraft companies consist ed largely architects civil engineers electrical engineers geologists pursuing in-plant educational facili ties provided universities able augment education ex tensive programs aeronautical engi neering After three years detail design wing tail structures moved Preliminary Design Group next 10 years played important role development variety projects including B24 B32 B36 B46 bombers supersonic Hust ler Flying boat designs developed dur ing time included R-3y Skate Sea Dart two high-per formance jet-powered seaplanes Pogo delta could fly straight up 14000 ft/min developed result availability 20000 lb thrust turbo-prop engines Other inter esting aircraft included F-102 delta82 Model Aviation Dwight Holley says Call Gene Shelkey determine choice landing zones Gene won call Dwight fiyoff Dave Burt looks diagram below