I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1988/05
Page Numbers: 54, 55, 56, 58, 163, 166
I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1988/05
Page Numbers: 54, 55, 56, 58, 163, 166
I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1988/05
Page Numbers: 54, 55, 56, 58, 163, 166
I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1988/05
Page Numbers: 54, 55, 56, 58, 163, 166
I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1988/05
Page Numbers: 54, 55, 56, 58, 163, 166
I HAVE BEEN member League tasks lay ahead seemed truly beyond Silent Flight years still re- skill modeling enthusiast Howmember day received vouch- ever through years help er Level time good friends soaring commun ity have finally able complete Level V tasks can remember first precision land ing attempts quiet evening Yellow Springs Ohiogently bringing Zaic Floater toward landing spot would run out tape eagerly measure distances first landing goals Years later came special tasks re quired Level IV V interesting challenging slope soar ing long cross-country ther mal duration flights However greatest legacy LSF has friendships gained countless contests across Midwest learned what great sport RC Sailplaning really am life member DARTS Dayton Area Thermal Soarers help good friends DARTS club completed Level V tasks exception eight-hour slope flight before moved Carolinas Once settled south joined club Hendersonville NC area called High Country Soaring Society young growing club very active both thermal slope soaring members HCSS have learned what like throw favorite airplane off top mountain fall 1985 finally began get se rious about getting last task Level V completed first attempt Big Bald mountain peak about 5600 feet high situated Tennessee-North Carolina border second Butler Mountain just south Asheville NC Both attempts ended time air falling far short required eight hours due either deterior ating cloud conditions insufficient wind Finally August 24 1986 condi tions right would like share what like plan execute attempt Butler Mountain Planning eight-hour attempt involves some logistics First site has such winds predicted throughout day correct direction because slope sites favor two wind directions Second have enough LSF Level II higher members present properly sign vouchers Third frequency control important because flier must have discreet frequency disposal entire day Fourth has suffi cient daylight available end flight safely bring down airplane Planning attempt began week ear lier contest Brevard NC Randy White member HCSS avid Slope Soarer acted coordinator planning went during week weather check late Friday pre 54 Model Aviation John Vennerhoim dispiays victory sign Paragon did job Picture snapped Brett Elliott moments after landing 8 hr 2 mm Models yellow blue coloring excellent varying visibility conditions ranged bright sun deep blue sky dark clouds overcast areas Spoilers disconnected landing hairy top level League Silent Flight achievements program recorded author daylong slope soaring flight youre used flights measured minutes youll want see what means John Vennerhoim dicted northerly winds cold front due Sunday night Butler Mountain favors northerly wind very common mountains summer months predicted conditions excellent Royes Salmon coming Oak Ridge TN also going attempt eight-hour flight Jack Koontz Hender sonville Randy lives Skyland NC going attempt four-hour flights group top ler Mountain 915 am Sunday Butler Mountain site 700-foothigh mountain directly south Asheville NC itself about 2200 feet above sea level mountain has beautiful grassy dome surrounded sides dense trees bushes clear day can see Asheville spread out low peaks Smoky Mountain National Park rise clear sharp western horizon Asheville weather department come up 10-knot forecast quick check winds indicated veloci ties excess 25 knots high winds some concern us because kind aircraft planned fly Royes brought airplane own design fairly heavily ballasted batteries essentially floater Jack flying Aquila Randy fly ing Standard Class airplane own de sign good penetration ability flying Paragon borrowed Ran dy added pound lead ballast fuselage bay directly ahead wing spar Royes serious reservations about fly ing Sailplane ballast car ried decided stand down see wind would abate within next hour half time window calculated would remain him launch morning allow adequate flight time before dusk set gave Paragon test hop found added ballast just able sustain position ahead moun tain flying airplane directly wind sure wind velocity would decrease somewhat airplane moved up away mountaintop elected fly aircraft full bal last hope wind would crease during day using rud der elevator Paragon leaving spoilers disconnected conserve battery power Later day would wish hadnt done Futaba transmitter its normal terior power supply also waist pack eight alkaline D-cells soldered connections using flexible lead DIN plug originally trainer plug side transmitter added slide switch transmitter al lowed switch external power May 1988 55 youre doing anything eight hours just cant position Theres standing kneeling sitting chair reclining lounger stretching out grass Vennerhoim shown about four hours flight Switchable external transmitter battery supply should have enough power several eight-hour flights Elliott photo Two weeks later September 71986 faithful Paragon put another 8-hr flight earn Level V Royes Salmon second right Shown L-R Jackie McBride Randy White Salmon John Vennerhoim Smiling faces belie everyones fatigue Jack Koontz plc planned start flying transmitter pow er external meter should show drop red could switch inter nal power know would least two hours flying time remaining flight pack consisted four alkaline C-cells soldered connections two servos line probably enough power several eight-hour flights just wanted make very sure batteries would concern going enough other things wor ry about during long day launched 1027 am official flight About 250 feet down north side Butler Mountain row large trees set up fierce horizontal vortex ro tor has penetrate get out main lift way succeed launch airplane dive along contour hill through rotor letting penetrate buffeting keeping nose down airplane went through some violent rolls before finally passed through rotor Once entered smooth laminar air out front moun tain airplane shot up like el evator airplane successful pene trating wind coming up face mountain no way will able penetrate area maximum velocity occurs directly over top mountain dont have excess pen etration ability important never let airplane fall behind front mountains crest does happen diving steeply toward ground will cause fall further back ees eat airplanes low cloud deck over mountain visibility up clouds good although actual bottom overcast indefinite estimated bottoms clouds about 600 700 feet above top mountain spent first hour flight keeping airplane generally pointed straight out mountain allowing get too high some indication periodic low scud airplane showed signs beginning disappear now very concerned about having get com pletely swallowed clouds beginning second hour could feel increase air temperature bottom cloud deck began rise noticeably Shortly before noon Randy Jack launched aircraft begin four-hour attempts helpful hav ing other aircraft air three us could move out various areas sky have better feeling changing visibility wind patterns Royes decided forego attempt cause high winds League Silent Flight League Silent Flight founded 1969 primary purpose providing col lective identification active Radio Control Soaring enthusiasts worldwide recognizing documented individual proficiency through de fined Soaring Accomplishments Program Mem bership can earned bought no membership dues attain membership declared aspirant must complete Level requirements five-minute thermal flight 15-minute slope second five-minute thermal flight five spot landings within three meters 984 ft target point Advanced levels progressively difficult culminating Level V criteria two-hour thermal flight eight-hour slope flight 10-kilometer 621-mile goal return flight considerable success Soaring competi tions LSF currently has about 6000 members 52 achieved Level V status written Interested persons may become aspirants membership submitting signed statement LSF Executive Board PO Box 647 Mundelein IL 60060 similar following name support philoso phies concepts criteria set forth laws League Silent Flight give no tice herewith intention attain Level LSF Soaring Accomplishments Program doing earn full recognition privilege membership Include mailing address AMA other FAI affiliate membership number least $100 cover handling return post age After noon bottom cloud deck quite high essentially un limited range out over valley could reach heights stabilizers aircraft became indistinct due ex treme distance gray overcast During third hour cloud cover gan break revealing fair amount clear blue sky could see small cumulus clouds begin form out over valley front us moved toward mountain would build fill out become dark gray underneath As cloud came could spend three four minutes getting literally sucked up big dark evil looking center airplanes became very difficult see cause extreme height would have dive out under cloud quick ly move over clear blue sky could get back down sensible height Turbulence possibility flutter due high speeds definite hazard con ditions like flying clear air found maximum altitude us could get particular wing loading Typically airplanes would settle comfortable height about 1500 feet above mountalntop about same distance out front seemed static point slope soar ing conditions existed good portion afternoon As day wore experienced pre dictable physiological situation Continued page 58 56 Model Aviation Jackie McBride another achieve 1SF Level V September 7 Butler Mountain near Asheville NC An eight-hour flight can gruelling experience Koontz photograph Jack Koontz September 7 after suc cessful four-hour Level IV Sagitta flight August 24 try heavy winds turbu lence 30 mm away wing Aquila folded Vennerhoim plc NEW BULK Hardware Packs NEW Low-price glow-driver Power Panel NEW Catamaran Race Boat NEW RC Electric Hovercraft NEW Mini Sailwinch servo NEW High performance nicads NEW High performance Speed Controls Name Street Address City very careful amount liquids consumed night before during morning Mother Nature seems little cantankerous best first several trips over convenient bush windward side mountain does wind tend blow air planes about itll blow hardest need least trying keep ones eyes airplane ones shoes dry will discover Level V task isnt LSF voucher Recommenda tion y away flat rocks off excursions As day wore approached passed first milepost flight 35 hours longest ever flown expecting same kind perceptual dete rioration encountered during earlier tempts Very slowly began realize taking active part flying airplane would find myself acting like interested observer men tally jerk myself back idea control airplane just sit watch fly around problem will creep up mind wanders fatigue potentially serious situation about friends must keep aware four hours flight sky nearly clear still some little clouds forming high up bottoms way beyond reach no recognizable thermal areas connected clouds although did detect some bubbles warm air sweeping up mountain would use came spent time out clear laminar-flow wind Randy landed successfully after fourhour flight big round ap plause congratulations him Jack however successful about 35 hours flight Aquila encountered some severe turbulence altitude maneuvering ensued wing folded did retrieve airplane wing rod bent full 450 gle both sides fuselage due tremendous G-loads turbulence maneuvering point fly ing extreme altitudes distances Sev eral other fliers come mountain flying Slope ships close mak ing high-speed passes doing aerobatics stayed well clear wind shifted bit west north spend last couple hours flight facing almost directly sun visual acuity deterior ating losing peripheral vision staring sky long remember remarking Royes after about six hours needed stand up fly airplane other portion sky thermal contest probably would have found very difficult comfortably could concentrate airplane small portion sky deterioration flying ability going affect landing time would have careful spent day either sitting chair lounger just lying grass transmitter propped knees tip antenna held station ary point sky would use tenna tip reference fly airplane pattern around great help keeping airplane wandering over sky None us has problem signal strength antenna orien tation As think about flight now complete realize have made eight-hour flight have experienced some thing unique have opportunity watch sky continuously entire day no interruption day watched sky go overcast dark -gray through various stages cloud until clear brilliant blue saw changing cloud formations watched grow nothing become fullsized cumulus dissipate watched changing sunlight color sky flew many hawks saw continuous visual experience 1030 morning until 630 eve ning interesting pects entire flight pilots have watched clouds form watched sky have actually seen evolve through entire day endlessly miss single thing will call complete physical mental guish think fascinating experi ence wind became worrisome factor dur ing sixth hour flight began subside unable keep heavily loaded Paragon about 400 feet air long time Finally seven-hour mark came just matter counting long 60 minutes Royes still doing calculations percent attempts keep alert great help flight seven seven half hours very very long time During period however wind increased able fly airplane once again ex tremely high altitude would lose sight stabilizer realize too tired judge rate airplane climbing can remember asking Royes should come down said Stay up said Royes maybe its getting too high said Stay up time would ask thought should come down hed just say Stay up tired absolutely could make judgment whether should come down high plane really course Royes correct have alti tude dont throw away wind can die warning time day foot altitude can become precious Soon friends began counting down time remaining end flight 10 minutes go thought Wow Continued page 163 58 Model Aviation over 150 NEW ITEMS YOU have never seen before ZMA StateZip Hog INTERNATIONAL INC 5 YellowMills Air- 301 956-2868 Hambleton Jacketplane3308Riva MD 21140 Models See next month RC Helicopters/Jolly Continued page 53 got fly new XX models very pleased finished product 05 32 XX really performa talking big-ship performance believe could better called Shuttle no excuses some wont end up tinkering its cer tainly necessary to enjoy way little cutie flies Check out both local dealer new Shuttles canopy aqua green XX version ia white metal gear struts Hirobo has also redone decal sheet can tractively trim new machine ease checking out new Shuttle UMP factory accidentally stumbled some bigger news Shuttle glarce picture noticed semiscale model Boe ing Vertols Chinook painted Kawasakis color schemeon low approach tail low wheels about ready roll John Gorham saw checking out photo handed data sheet form telefaxed letter Hi robo fax made plain Hirobo engineers have again have produced small tandem Helicopter 39-in-dia rotors new ship features flybarless three-bladed rotor heads weighs 7 lb powered 0S 32 Before laugh 7-lb weight remem ber tail rotor eats up significant amount powerand tandem power used provide lift Also relative disc loading lower because extra rotor what could see photo model highly prefabricated new Hirobo Chinook has since shown Nuremberg big hit GMP will showing Toledo dont know about Ive waited model like long time youre inter ested contact GMP dealer details BCNU Larry LSF Level V/Vennerholm Continued page 58 max guess can handle almost anticlimactic counted down minute minute rac ing through last 60 seconds Finally announced eight hours Everybody cheered probably because could final ly go home time bring airplane down very carefully because though stayed up eight hours landing within 200 meters launch point wasnt whole flight would wasted stood up lounger sitting past two half hours unsteady Royes hold shoulder literally keep falling over walked backwards sittingwith Royes leading just though beginner first thennal contest didnt feel comfort able taking eyes airplane looking down ground changing focus walked backwards turned re flexes very very slow Paragon didnt have spoilers awfully high fatigue difficult bring down building up too much speed started spiral down immediately suc ceeded getting right smack sun Turning around saw grass trees angle began disorient little bit So just planted feet stared airplane curved toward around top mountain remembered plane didnt have spoilers rather heavily loaded ballast coming pretty high ve locity Since final approach downhill Paragon encountered strong ground ef fect began accelerate situa tion airplane would zoom right past go off front mountain again too tired face another approach knew put airplane down first try pushed down elevator blasted grass After winning tough contests after practice making land ings Levels II last task Level V resulted upside-down land ing guess someone trying remind something However airplane finally down feet after eight Continued page 166 Erebull R/C Idle-Bar Glow Plugs Long Short Also .Only $189 Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 ce 7948 Wayne NJ Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER FOXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER PIJXY PAINT K&B MIXING CUPS ne eckfor Immedlafe Shipmeeet liNOAM G-62 37 Cu In $25495 New Qeedre 40 CDI 13-beering opring eterterl$14995 Reg Qoedre 40 $12299 Brieghelle flywheel 96 Reg Qoedre 40 Power Aeeewbly Only pointe $6495 QUADRA orZENOAH REPAIR$1000 Ipine pertel Jin Meecer ERCOIJPEPLANS $2396 FULL-KIT $23995 Jiw Meese TOMAHAWKPLANS $2365 FULL-KIT $23996 Jim Meete J-3 KITTENPLANS $2995 FULL-KIT $19996 WE ROSINHOODS$ KIT559S9leeve$3000 WE ROSINHOOD 99 KIT$13996 leone 860001 ZENOAN G-23 95ZENOAH G-39 95 FLOATS 401/4 ecelecoree $2199 complete hit $4796 10 WWl WHEELS $2596P/K SprIng Sterter $2495 PLANS SUPER STEARMAN 114 IGodfreyl $3996 1/3 TAYLORCRAFT 01/3 CUB NeIlto $3995 VOLKSPLANE 1/3 Ihlnhen Cherliel $2395 Servo H402 420 $1295 World 615 $or l9e otodele $4495 Prop eli eloee ER TOP FLITE DYNATHRUST 28% OFF US Onedre FUELTANKS1600 $695320 $795 FIBERGLASS ARROW SHAFTS5/16x32100969091195 2$ $00 Sevino Add 9259 poetoge Seek Cheok 00 o JIM MESSERS QUALITY MODEL PRODUCTS inVafley View Dr Box 43 AIIegany NY 14706 May1988 163 rnunuu ujrmance System TOr ERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices PRACTICAL SIZED GIANT SCALE MODELS NICK ZIROLI FihergI~ "vlings Canopies AvailableJets too Plans sent Post-Paid within uSA Send 5O Full Catalog Alt BalsaPlans RK-20 RK-740 Ducted Fans Phantom 35 span $1000 Viggan32 span $1000 ____________________________________________F-15 30 span $1000 Order FromPlan canopy $1500 Nick Ziroli 29 Edgar Dr516-234-5038 LSF Level V/Vennerholm Continued page 163 hours two minutes remained get voucher signed let Brett Elliott complete photographic ef forts As postscript story am very pleased report two weeks later same site Royes Salmon Jackie McBride also Oak Ridge TN flew eight-hour tasks Level V Jack Koontz successfully flew Level IV fourhour task owe big debt gratitude people have helped achieve Level V am pleased share experien ces perhaps encourage some out continue until have Level V also seems once someone com pletes difficult task others become en couraged try real spirit modeling still look forward eight-hour flight perhaps some experiences may help pre pare day climb moun tain somewhere throw favorite bird clean off another world Good Luck Lift SAFE FLYING IS NO ACCIDENT CL Scale/Boss Continued page 60 both above examples opinion John modeler should downgraded both categories must admit have judged CL Sport Scale events havent really looked static judging categories quite same manner detailed above have less judged independent basis after reviewing Guenthers thoughts subject must conclude much merit approach appears good part problem area judging Craftsmanship due part diverse ways individuals have approach ing subject also lack anything Scale rules structure defines craftsman ship provides guidelines judge might follow According NASA article current rule-making cycle will likely see some activ ity issue Therefore might want think about area judging time comes prepared let AMA dis tricts Scale Contest Board member know feel subject am sure John Guen ther well myself would also interested hearing Send comments John Guenther RR #3 Box 261 Borden IN 47106 address head column Fuel tank filler tube placement can consid erable problem Scale modeler trying preserve models overall scale appearance Quite often modeler goes great lengths de tail finish model leaves fuel tank filler tubes sticking out somewhere engine cowling somewhat like item caliered several months ago plain piano wire used tail wheel strut after appli cation great detail main landing gear item prompted note Kevin Fruewirth Omaha NE asking eas ier way hiding fuel tank filler tubes rather completely enclosing engine cowling done recently made PT19 order get access fuel filler tubes Kevin remove portion cowling Thats hardly convenient way fill fuel tank indicated Kevin rather easy solution hiding filler tubes PT-19 make planes scale-detail oil filler access door operable install fuel tank filler tubes behind See accompanying sketch should also noted aircraft the 1920s Thirties similar ac cess doors panels engine servicing Some other ideas hiding filler tubes might follows P-51 P-40 might work fuel tank filler tubes exhaust pip ing planes like Corsair P-47 B-25 have radial engines area behind en gine cowl flaps makes good place conceal tank filler tubes Both ideas included above sketch am sure no matter what model building close examination prototypes engine cowl area will reveal some sort access panel can made removable used concealing tank filler tubes problem might encounter would need some extra work routing tank fuel lines point access panel door etc can made operable Hiding 166 Model Aviation DC-31A 1140 Span$4200 F4u CORSAIR2W 193 Span$3000 AOM5ZERO2S 191Span$3000 CURTISP402A 194Span$3000 AT-B TEXAN24 1101 Span$3000 FBFBEARCAT2A186Span$3000 FOKKERDR127163 Tripe$2700 N Smithtown NY 11787 USA SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773