DESIGNED TO MEET Bostonian Cabin West 14 grain Bostonian rules Plan arian canard-configured rubber-pow ered model Although design may seem strange first glance good reasons its unconventional features original Planarian suc cessful contest career consistently turning times about minute under 24-ft ceiling Other modelers have access sites clearance have reported times high 80 seconds Planarians Despite its unusual appearance Planarian relatively easy build trim sure raise eyebrows local flying site Boston Cabin rules place rather strict constraints design model Planarian designed maximize performance under rules also created show design restrictions necessarily mean Bostonians must high-wing conventional Cub-like airplanes canard pusher layout has several advantages design fuselage allows rubber motor run full length fuselage allows motor little longer motor conventional model fuselage tapers point Boston Cabin rules restrict fuselage length rubber weight length pusher model has slight advantage because motor size Both canard wing lifting surfaces decreases effective wing loading model allows fly slowly theory least should improve duration although can also argued induced drag foreplane counteracts benefit its added lift dont know quantitatively effects really dominant Planarian can say certain Planarian does well flown against conventional modelsso something working right aerodynamically properly trimmed canard very stable pitch has good pitch damping significant advantage air flying site turbulent flying outdoors Planarian has noticeable edge over conventional models air gets bumpy major advantage pusher lay out has nothing dowith flight perform ance Tractor models balsa props forever breaking prop blades landing flying walls lights Plan arians pusher propeller well protected main landing gear/fins landing propeller aft model does lead fragile prop collides walls lights design cabin area inspired Bumelli lifting fuselage airplanes 1930s 1940s Boston Cabin rules require model have cabin measuring 1 x 2 x 3 As long cabin area contributing drag model might well work living add some lift too fuselage sort mutant pod boom has less wetted area conventionally shaped fuselage theory least Planarian fuselage should have lower drag conventional fuselage windshield area required rules forms front airfoiled cabin therefore adds no extra drag model Competition fughts Boston Cabin 1~EBarnabyWainfanQ September 1987 55 always launched ground ROG problem frequently encoun tered conventional tail-dragging models model torques over takeoff touches wing tip ground ground-loops tends limit num ber turns motor can wound before model cant takeoff anymore wide stance tricycle landing gear Planarian prevent ground looping simi lar takeoff problems main wheels mounted underwing vertical fins makes fins double duty stabilizers landing gear eliminates need separate landing gear legs Planarian has built single vertical fm top fuselage wire gear legs attached wings twin fins modi fied model took off flew well no noticeable performance change result modifications Construction Planarian diffi cult model build assembly se quence important building fuselage first step build bottom fuselage flat plans rest fuselage built up basic crutch fuselage sticks 1/16 square balsa uprights form side cabin first pieces added crutch good idea use triangle make sure pieces truly ver Continued page 141 Left The fuselage built almost entirely 1/16 sq balsa bottom fuselage should built flat plans cabin boom should built up crutch formed bottom unpin fuselage plans until whole structure complete Right model temporarily assembled sake photo covering should done before final assembly Left Certainly unique airplane anybodys definition Planarlan will quickly prove Its legitimacy hits air flown indoors off smooth surface wheel required nose gear Right cabin hindrance Bostonian models con tributes overall lift model canard configuration handles turbulence high-power motor runs better 56 Model Aviation Left The plan view model shows much cabin area required Boston Cabin rules Planarian design attemptto get area provide useful lift Above far aft main gear three-point stance Planarlan make impossible model rotate takeoff compensate model must sit nose-up gear order make required ROG contains six drawings time around em look suitable quarter-scale larger treatment last drawing book MiniMax ultralight shows powered Rotax engine dedicated Scale nut could build model use Supertigre 2500 power Supertigre minimum cosmetic additions could easily pass scale engine Bills latest book available $495 plus $150 P&H PO Box Escondido CA 92025 hell autograph no extra charge Finally Fred Wallman promised set scale landing gear parts eternal quarterscale Ryan B-5 thats filling local workshop past three years has made great progress Hes developed some sporty-looking drawings looks like gearll fit perfectly interim hes also come up neat method making swirls Ryan cowling quarter-scale swirls have diameter make aluminum printers plate sheets using drill press -in dowel mandrel some 150-grit sand paper glued its base actual cowling sections will cut swirled aluminum aid pre-fitted cardboard templates John de Vries 4610 MoffatLn Colorado Springs CO 80915 RCHelicopters Continued page 53 obo Kalt someone starts importing again Kobe really surprised just realistic Kobe-made Hughes looks air Im going add Du-Bro -scale pilot figure soon have time paint up addition will look realistic side beneflt flying gasoline-powered Helicopters because low oil content fuel virtually nothing clean up after flying session Just wipe off concrete grime charge batteries fill tank go fly again Hughes 300 stays track has needed no maintenance far could attributed part Dave Robertsons skill assembling model credit must also given Kobes robust design Like said before hope someone out finds way overcome yen/dollar problem decides import Kobe line Flying Hughes 300 such neat experi ence wish could share BCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Pylon Racing/HagerPlanarlan/Wainfan Continued page 54Continued page 56 15 Pt Jeff Faleo 15 Pt Lee Pohar 14 Pt Ori Steinmetz 12 Pt Dino Goegan 12 Pt Dick Shields 12 Pt Dan Kane Sr 11 Pt Bob Loehner 9 Pt Bob Bentley 8 pt Tom Barrett 8 Pt Ron Jacobs 8 pt Bruce Balko 6 Pt J&ry Aarsted6 Pt Scott Justice 5 Pt Bob Lyttle 5 Pt Dave Smith 2 Pt Fastest time 13969 went Dan Kane Jr Thanks participants thanks Orv Steinmetz interesting entertaining report See next month Bill Hager 706 Glen Haven Dr Conroe IX 77385 tical canted either fore aft laterally next step add upper longerons form side cabin should first attached trailing edge bent position sure bottom fuselage securely pinned down building board before adding top longerons will lift up warp bent place Once upper longerons have attached cabin top cross members side diagonals canard bearers installed putting canard bearers sure details other Zimbabwe Model Products kits call write Full color deluxe catalog-SI 00 C--ZIMPRO MARKETING Manufactuers Repesentatnve & npo e s o P ne can Poductsp PO BOX 3076 OAK RIDGE TENNESSEE 37830 Tel 615482-6188 September 1987 141 AIR WOLF EPOXY FIBERGLASS FUSELAGE S TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 Z n 526 ALL BALSA ARF KIT features pre-assembled wood ply fuselage fully sheeted wings stab & rudder epoxy cowl Lexan canopy hardware CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies HUBBY __ outdated old ard older basic RC systems can easily update adding dual rates mixing extra channels frequency changes etc need basic electrical ability simple tools Written R/C tech 10 yrs exp 142 page journal includes sources diagrams charts detailed modifications written simple under standable text Send $1995 check money order aouny RADIO 3001-A Kavanaugh Rd Wilson Ne 27893 Phone 919 291-8548 Hobby Radio also offers professional R/C repairs moda Complete systems service battery pack servos vibration testing new frequency change etc manu facturer repairs guaranteed performed minimal turnaround send sase price list complete services include nose up incidence angle shown side view pians incidence essential trim model windshield frames cut /16 sheet added point along /32 nose sheeting complete cabin structure tail boom built up crutch much same manner cabin structure triangular formers stalled first longeron forms top boom added complete fuselage structure wing canard construction straightforward builder should note two tip ribs surface doubled made 6 sheet instead of/i2 keep sagging inward covering shrunken canard dihedral important stability model make sure get right little too much dihedral canard will hurt too little canard dihedral can lead spiral instability fins built flat plan Re member two oomponents model should covered before final assembly covering lightweight tissue should shrunken rubbing alcohol water doped coat thinned clear dope Assembly straightforward sure fins firmly attached wings Remember also landing gear legs must take landing loads After model assembled add main wheels nose gear nose gear made either Y32 round bamboo music wire very important nose gear long enough model sits nose up ground tricycle gear far aft main wheels Planarian keep rotating takeoff must have positive angle attack sitting gear order liftoff nose gear original model did have wheel plane no trouble taking off smooth gymnasium floor Planarian going flown outdoors off paved surface may want add nose wheel Trimming flying CG model should near trailing edge cabin motor Planarian loop h-in rubber maximum per formance motor should about 1 times length fuselage model flies best left torque choose build right-handed propeller can wound normally fly model right small tab left fin used set turn radius trimming Planarian start winding about 600 turns work up Maximum oontest winds about 2000 turns Remember Planarian pusher must wound back wards very embarrassing release model have taxi madly away reverse trimming flights should made ROG Planarian has unusual flight characteristic Since canard does stall classic sense unless CG extremely far aft model just little tail-heavy will take off normally settle slow mushing descent power decreases easily cured moving CG forward slightly properly trimmed Planarman will circle smoothly about minute typical high school gym Acknowledgement Planarman plans work Carlo Godel did beautiful job very short notice has heartfelt thanks effort FF Champs/Oldenkamp Continued page 60 generous very welcome chilly fingers pounding hearts some pilots offer up nervous test flights no wants first launch model official flight morning skies still leaden its too early able pick out good air bikes fire up some have teeth Im con vinced week-old bites st begin ferrying support gear models out flight line Promptly 700 am real roar begins Gas ship screams incredible heights dethermalizes less instantly Some unfamiliar conditions Taft seek help reg ulars wise ones content wait until aznbient flow rises bit dont have wait long thoughby 800 things full growl time cards begin fill maxes easy maxes understand maxes nevertheless Con centration beginning turn myriad mylar streamer poles digital thermometers hear thud see dust cloud first crash weekend Things underway sure now Are having fun yet better believe Up down line model boxes open reveal many-splendored things drew us first place mind boggles variety design ap proaches gadgetry trends noon lifetime Zaic books have passed three dimensional form Its enough give sensory overload Time break begin sharing learning earnest Time handshaking old friends new acquaintances curious movers 142 Model Aviation SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOdI CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPTERS FOR BENT OR KNOB TYPE NEEDLES FOR19-I08 ENGINES PRICE $1200 S&D MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECK OR MO DES PLAINES IL60016
Edition: Model Aviation - 1987/09
Page Numbers: 55, 56, 141, 142
DESIGNED TO MEET Bostonian Cabin West 14 grain Bostonian rules Plan arian canard-configured rubber-pow ered model Although design may seem strange first glance good reasons its unconventional features original Planarian suc cessful contest career consistently turning times about minute under 24-ft ceiling Other modelers have access sites clearance have reported times high 80 seconds Planarians Despite its unusual appearance Planarian relatively easy build trim sure raise eyebrows local flying site Boston Cabin rules place rather strict constraints design model Planarian designed maximize performance under rules also created show design restrictions necessarily mean Bostonians must high-wing conventional Cub-like airplanes canard pusher layout has several advantages design fuselage allows rubber motor run full length fuselage allows motor little longer motor conventional model fuselage tapers point Boston Cabin rules restrict fuselage length rubber weight length pusher model has slight advantage because motor size Both canard wing lifting surfaces decreases effective wing loading model allows fly slowly theory least should improve duration although can also argued induced drag foreplane counteracts benefit its added lift dont know quantitatively effects really dominant Planarian can say certain Planarian does well flown against conventional modelsso something working right aerodynamically properly trimmed canard very stable pitch has good pitch damping significant advantage air flying site turbulent flying outdoors Planarian has noticeable edge over conventional models air gets bumpy major advantage pusher lay out has nothing dowith flight perform ance Tractor models balsa props forever breaking prop blades landing flying walls lights Plan arians pusher propeller well protected main landing gear/fins landing propeller aft model does lead fragile prop collides walls lights design cabin area inspired Bumelli lifting fuselage airplanes 1930s 1940s Boston Cabin rules require model have cabin measuring 1 x 2 x 3 As long cabin area contributing drag model might well work living add some lift too fuselage sort mutant pod boom has less wetted area conventionally shaped fuselage theory least Planarian fuselage should have lower drag conventional fuselage windshield area required rules forms front airfoiled cabin therefore adds no extra drag model Competition fughts Boston Cabin 1~EBarnabyWainfanQ September 1987 55 always launched ground ROG problem frequently encoun tered conventional tail-dragging models model torques over takeoff touches wing tip ground ground-loops tends limit num ber turns motor can wound before model cant takeoff anymore wide stance tricycle landing gear Planarian prevent ground looping simi lar takeoff problems main wheels mounted underwing vertical fins makes fins double duty stabilizers landing gear eliminates need separate landing gear legs Planarian has built single vertical fm top fuselage wire gear legs attached wings twin fins modi fied model took off flew well no noticeable performance change result modifications Construction Planarian diffi cult model build assembly se quence important building fuselage first step build bottom fuselage flat plans rest fuselage built up basic crutch fuselage sticks 1/16 square balsa uprights form side cabin first pieces added crutch good idea use triangle make sure pieces truly ver Continued page 141 Left The fuselage built almost entirely 1/16 sq balsa bottom fuselage should built flat plans cabin boom should built up crutch formed bottom unpin fuselage plans until whole structure complete Right model temporarily assembled sake photo covering should done before final assembly Left Certainly unique airplane anybodys definition Planarlan will quickly prove Its legitimacy hits air flown indoors off smooth surface wheel required nose gear Right cabin hindrance Bostonian models con tributes overall lift model canard configuration handles turbulence high-power motor runs better 56 Model Aviation Left The plan view model shows much cabin area required Boston Cabin rules Planarian design attemptto get area provide useful lift Above far aft main gear three-point stance Planarlan make impossible model rotate takeoff compensate model must sit nose-up gear order make required ROG contains six drawings time around em look suitable quarter-scale larger treatment last drawing book MiniMax ultralight shows powered Rotax engine dedicated Scale nut could build model use Supertigre 2500 power Supertigre minimum cosmetic additions could easily pass scale engine Bills latest book available $495 plus $150 P&H PO Box Escondido CA 92025 hell autograph no extra charge Finally Fred Wallman promised set scale landing gear parts eternal quarterscale Ryan B-5 thats filling local workshop past three years has made great progress Hes developed some sporty-looking drawings looks like gearll fit perfectly interim hes also come up neat method making swirls Ryan cowling quarter-scale swirls have diameter make aluminum printers plate sheets using drill press -in dowel mandrel some 150-grit sand paper glued its base actual cowling sections will cut swirled aluminum aid pre-fitted cardboard templates John de Vries 4610 MoffatLn Colorado Springs CO 80915 RCHelicopters Continued page 53 obo Kalt someone starts importing again Kobe really surprised just realistic Kobe-made Hughes looks air Im going add Du-Bro -scale pilot figure soon have time paint up addition will look realistic side beneflt flying gasoline-powered Helicopters because low oil content fuel virtually nothing clean up after flying session Just wipe off concrete grime charge batteries fill tank go fly again Hughes 300 stays track has needed no maintenance far could attributed part Dave Robertsons skill assembling model credit must also given Kobes robust design Like said before hope someone out finds way overcome yen/dollar problem decides import Kobe line Flying Hughes 300 such neat experi ence wish could share BCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Pylon Racing/HagerPlanarlan/Wainfan Continued page 54Continued page 56 15 Pt Jeff Faleo 15 Pt Lee Pohar 14 Pt Ori Steinmetz 12 Pt Dino Goegan 12 Pt Dick Shields 12 Pt Dan Kane Sr 11 Pt Bob Loehner 9 Pt Bob Bentley 8 pt Tom Barrett 8 Pt Ron Jacobs 8 pt Bruce Balko 6 Pt J&ry Aarsted6 Pt Scott Justice 5 Pt Bob Lyttle 5 Pt Dave Smith 2 Pt Fastest time 13969 went Dan Kane Jr Thanks participants thanks Orv Steinmetz interesting entertaining report See next month Bill Hager 706 Glen Haven Dr Conroe IX 77385 tical canted either fore aft laterally next step add upper longerons form side cabin should first attached trailing edge bent position sure bottom fuselage securely pinned down building board before adding top longerons will lift up warp bent place Once upper longerons have attached cabin top cross members side diagonals canard bearers installed putting canard bearers sure details other Zimbabwe Model Products kits call write Full color deluxe catalog-SI 00 C--ZIMPRO MARKETING Manufactuers Repesentatnve & npo e s o P ne can Poductsp PO BOX 3076 OAK RIDGE TENNESSEE 37830 Tel 615482-6188 September 1987 141 AIR WOLF EPOXY FIBERGLASS FUSELAGE S TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 Z n 526 ALL BALSA ARF KIT features pre-assembled wood ply fuselage fully sheeted wings stab & rudder epoxy cowl Lexan canopy hardware CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies HUBBY __ outdated old ard older basic RC systems can easily update adding dual rates mixing extra channels frequency changes etc need basic electrical ability simple tools Written R/C tech 10 yrs exp 142 page journal includes sources diagrams charts detailed modifications written simple under standable text Send $1995 check money order aouny RADIO 3001-A Kavanaugh Rd Wilson Ne 27893 Phone 919 291-8548 Hobby Radio also offers professional R/C repairs moda Complete systems service battery pack servos vibration testing new frequency change etc manu facturer repairs guaranteed performed minimal turnaround send sase price list complete services include nose up incidence angle shown side view pians incidence essential trim model windshield frames cut /16 sheet added point along /32 nose sheeting complete cabin structure tail boom built up crutch much same manner cabin structure triangular formers stalled first longeron forms top boom added complete fuselage structure wing canard construction straightforward builder should note two tip ribs surface doubled made 6 sheet instead of/i2 keep sagging inward covering shrunken canard dihedral important stability model make sure get right little too much dihedral canard will hurt too little canard dihedral can lead spiral instability fins built flat plan Re member two oomponents model should covered before final assembly covering lightweight tissue should shrunken rubbing alcohol water doped coat thinned clear dope Assembly straightforward sure fins firmly attached wings Remember also landing gear legs must take landing loads After model assembled add main wheels nose gear nose gear made either Y32 round bamboo music wire very important nose gear long enough model sits nose up ground tricycle gear far aft main wheels Planarian keep rotating takeoff must have positive angle attack sitting gear order liftoff nose gear original model did have wheel plane no trouble taking off smooth gymnasium floor Planarian going flown outdoors off paved surface may want add nose wheel Trimming flying CG model should near trailing edge cabin motor Planarian loop h-in rubber maximum per formance motor should about 1 times length fuselage model flies best left torque choose build right-handed propeller can wound normally fly model right small tab left fin used set turn radius trimming Planarian start winding about 600 turns work up Maximum oontest winds about 2000 turns Remember Planarian pusher must wound back wards very embarrassing release model have taxi madly away reverse trimming flights should made ROG Planarian has unusual flight characteristic Since canard does stall classic sense unless CG extremely far aft model just little tail-heavy will take off normally settle slow mushing descent power decreases easily cured moving CG forward slightly properly trimmed Planarman will circle smoothly about minute typical high school gym Acknowledgement Planarman plans work Carlo Godel did beautiful job very short notice has heartfelt thanks effort FF Champs/Oldenkamp Continued page 60 generous very welcome chilly fingers pounding hearts some pilots offer up nervous test flights no wants first launch model official flight morning skies still leaden its too early able pick out good air bikes fire up some have teeth Im con vinced week-old bites st begin ferrying support gear models out flight line Promptly 700 am real roar begins Gas ship screams incredible heights dethermalizes less instantly Some unfamiliar conditions Taft seek help reg ulars wise ones content wait until aznbient flow rises bit dont have wait long thoughby 800 things full growl time cards begin fill maxes easy maxes understand maxes nevertheless Con centration beginning turn myriad mylar streamer poles digital thermometers hear thud see dust cloud first crash weekend Things underway sure now Are having fun yet better believe Up down line model boxes open reveal many-splendored things drew us first place mind boggles variety design ap proaches gadgetry trends noon lifetime Zaic books have passed three dimensional form Its enough give sensory overload Time break begin sharing learning earnest Time handshaking old friends new acquaintances curious movers 142 Model Aviation SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOdI CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPTERS FOR BENT OR KNOB TYPE NEEDLES FOR19-I08 ENGINES PRICE $1200 S&D MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECK OR MO DES PLAINES IL60016
Edition: Model Aviation - 1987/09
Page Numbers: 55, 56, 141, 142
DESIGNED TO MEET Bostonian Cabin West 14 grain Bostonian rules Plan arian canard-configured rubber-pow ered model Although design may seem strange first glance good reasons its unconventional features original Planarian suc cessful contest career consistently turning times about minute under 24-ft ceiling Other modelers have access sites clearance have reported times high 80 seconds Planarians Despite its unusual appearance Planarian relatively easy build trim sure raise eyebrows local flying site Boston Cabin rules place rather strict constraints design model Planarian designed maximize performance under rules also created show design restrictions necessarily mean Bostonians must high-wing conventional Cub-like airplanes canard pusher layout has several advantages design fuselage allows rubber motor run full length fuselage allows motor little longer motor conventional model fuselage tapers point Boston Cabin rules restrict fuselage length rubber weight length pusher model has slight advantage because motor size Both canard wing lifting surfaces decreases effective wing loading model allows fly slowly theory least should improve duration although can also argued induced drag foreplane counteracts benefit its added lift dont know quantitatively effects really dominant Planarian can say certain Planarian does well flown against conventional modelsso something working right aerodynamically properly trimmed canard very stable pitch has good pitch damping significant advantage air flying site turbulent flying outdoors Planarian has noticeable edge over conventional models air gets bumpy major advantage pusher lay out has nothing dowith flight perform ance Tractor models balsa props forever breaking prop blades landing flying walls lights Plan arians pusher propeller well protected main landing gear/fins landing propeller aft model does lead fragile prop collides walls lights design cabin area inspired Bumelli lifting fuselage airplanes 1930s 1940s Boston Cabin rules require model have cabin measuring 1 x 2 x 3 As long cabin area contributing drag model might well work living add some lift too fuselage sort mutant pod boom has less wetted area conventionally shaped fuselage theory least Planarian fuselage should have lower drag conventional fuselage windshield area required rules forms front airfoiled cabin therefore adds no extra drag model Competition fughts Boston Cabin 1~EBarnabyWainfanQ September 1987 55 always launched ground ROG problem frequently encoun tered conventional tail-dragging models model torques over takeoff touches wing tip ground ground-loops tends limit num ber turns motor can wound before model cant takeoff anymore wide stance tricycle landing gear Planarian prevent ground looping simi lar takeoff problems main wheels mounted underwing vertical fins makes fins double duty stabilizers landing gear eliminates need separate landing gear legs Planarian has built single vertical fm top fuselage wire gear legs attached wings twin fins modi fied model took off flew well no noticeable performance change result modifications Construction Planarian diffi cult model build assembly se quence important building fuselage first step build bottom fuselage flat plans rest fuselage built up basic crutch fuselage sticks 1/16 square balsa uprights form side cabin first pieces added crutch good idea use triangle make sure pieces truly ver Continued page 141 Left The fuselage built almost entirely 1/16 sq balsa bottom fuselage should built flat plans cabin boom should built up crutch formed bottom unpin fuselage plans until whole structure complete Right model temporarily assembled sake photo covering should done before final assembly Left Certainly unique airplane anybodys definition Planarlan will quickly prove Its legitimacy hits air flown indoors off smooth surface wheel required nose gear Right cabin hindrance Bostonian models con tributes overall lift model canard configuration handles turbulence high-power motor runs better 56 Model Aviation Left The plan view model shows much cabin area required Boston Cabin rules Planarian design attemptto get area provide useful lift Above far aft main gear three-point stance Planarlan make impossible model rotate takeoff compensate model must sit nose-up gear order make required ROG contains six drawings time around em look suitable quarter-scale larger treatment last drawing book MiniMax ultralight shows powered Rotax engine dedicated Scale nut could build model use Supertigre 2500 power Supertigre minimum cosmetic additions could easily pass scale engine Bills latest book available $495 plus $150 P&H PO Box Escondido CA 92025 hell autograph no extra charge Finally Fred Wallman promised set scale landing gear parts eternal quarterscale Ryan B-5 thats filling local workshop past three years has made great progress Hes developed some sporty-looking drawings looks like gearll fit perfectly interim hes also come up neat method making swirls Ryan cowling quarter-scale swirls have diameter make aluminum printers plate sheets using drill press -in dowel mandrel some 150-grit sand paper glued its base actual cowling sections will cut swirled aluminum aid pre-fitted cardboard templates John de Vries 4610 MoffatLn Colorado Springs CO 80915 RCHelicopters Continued page 53 obo Kalt someone starts importing again Kobe really surprised just realistic Kobe-made Hughes looks air Im going add Du-Bro -scale pilot figure soon have time paint up addition will look realistic side beneflt flying gasoline-powered Helicopters because low oil content fuel virtually nothing clean up after flying session Just wipe off concrete grime charge batteries fill tank go fly again Hughes 300 stays track has needed no maintenance far could attributed part Dave Robertsons skill assembling model credit must also given Kobes robust design Like said before hope someone out finds way overcome yen/dollar problem decides import Kobe line Flying Hughes 300 such neat experi ence wish could share BCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Pylon Racing/HagerPlanarlan/Wainfan Continued page 54Continued page 56 15 Pt Jeff Faleo 15 Pt Lee Pohar 14 Pt Ori Steinmetz 12 Pt Dino Goegan 12 Pt Dick Shields 12 Pt Dan Kane Sr 11 Pt Bob Loehner 9 Pt Bob Bentley 8 pt Tom Barrett 8 Pt Ron Jacobs 8 pt Bruce Balko 6 Pt J&ry Aarsted6 Pt Scott Justice 5 Pt Bob Lyttle 5 Pt Dave Smith 2 Pt Fastest time 13969 went Dan Kane Jr Thanks participants thanks Orv Steinmetz interesting entertaining report See next month Bill Hager 706 Glen Haven Dr Conroe IX 77385 tical canted either fore aft laterally next step add upper longerons form side cabin should first attached trailing edge bent position sure bottom fuselage securely pinned down building board before adding top longerons will lift up warp bent place Once upper longerons have attached cabin top cross members side diagonals canard bearers installed putting canard bearers sure details other Zimbabwe Model Products kits call write Full color deluxe catalog-SI 00 C--ZIMPRO MARKETING Manufactuers Repesentatnve & npo e s o P ne can Poductsp PO BOX 3076 OAK RIDGE TENNESSEE 37830 Tel 615482-6188 September 1987 141 AIR WOLF EPOXY FIBERGLASS FUSELAGE S TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 Z n 526 ALL BALSA ARF KIT features pre-assembled wood ply fuselage fully sheeted wings stab & rudder epoxy cowl Lexan canopy hardware CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies HUBBY __ outdated old ard older basic RC systems can easily update adding dual rates mixing extra channels frequency changes etc need basic electrical ability simple tools Written R/C tech 10 yrs exp 142 page journal includes sources diagrams charts detailed modifications written simple under standable text Send $1995 check money order aouny RADIO 3001-A Kavanaugh Rd Wilson Ne 27893 Phone 919 291-8548 Hobby Radio also offers professional R/C repairs moda Complete systems service battery pack servos vibration testing new frequency change etc manu facturer repairs guaranteed performed minimal turnaround send sase price list complete services include nose up incidence angle shown side view pians incidence essential trim model windshield frames cut /16 sheet added point along /32 nose sheeting complete cabin structure tail boom built up crutch much same manner cabin structure triangular formers stalled first longeron forms top boom added complete fuselage structure wing canard construction straightforward builder should note two tip ribs surface doubled made 6 sheet instead of/i2 keep sagging inward covering shrunken canard dihedral important stability model make sure get right little too much dihedral canard will hurt too little canard dihedral can lead spiral instability fins built flat plan Re member two oomponents model should covered before final assembly covering lightweight tissue should shrunken rubbing alcohol water doped coat thinned clear dope Assembly straightforward sure fins firmly attached wings Remember also landing gear legs must take landing loads After model assembled add main wheels nose gear nose gear made either Y32 round bamboo music wire very important nose gear long enough model sits nose up ground tricycle gear far aft main wheels Planarian keep rotating takeoff must have positive angle attack sitting gear order liftoff nose gear original model did have wheel plane no trouble taking off smooth gymnasium floor Planarian going flown outdoors off paved surface may want add nose wheel Trimming flying CG model should near trailing edge cabin motor Planarian loop h-in rubber maximum per formance motor should about 1 times length fuselage model flies best left torque choose build right-handed propeller can wound normally fly model right small tab left fin used set turn radius trimming Planarian start winding about 600 turns work up Maximum oontest winds about 2000 turns Remember Planarian pusher must wound back wards very embarrassing release model have taxi madly away reverse trimming flights should made ROG Planarian has unusual flight characteristic Since canard does stall classic sense unless CG extremely far aft model just little tail-heavy will take off normally settle slow mushing descent power decreases easily cured moving CG forward slightly properly trimmed Planarman will circle smoothly about minute typical high school gym Acknowledgement Planarman plans work Carlo Godel did beautiful job very short notice has heartfelt thanks effort FF Champs/Oldenkamp Continued page 60 generous very welcome chilly fingers pounding hearts some pilots offer up nervous test flights no wants first launch model official flight morning skies still leaden its too early able pick out good air bikes fire up some have teeth Im con vinced week-old bites st begin ferrying support gear models out flight line Promptly 700 am real roar begins Gas ship screams incredible heights dethermalizes less instantly Some unfamiliar conditions Taft seek help reg ulars wise ones content wait until aznbient flow rises bit dont have wait long thoughby 800 things full growl time cards begin fill maxes easy maxes understand maxes nevertheless Con centration beginning turn myriad mylar streamer poles digital thermometers hear thud see dust cloud first crash weekend Things underway sure now Are having fun yet better believe Up down line model boxes open reveal many-splendored things drew us first place mind boggles variety design ap proaches gadgetry trends noon lifetime Zaic books have passed three dimensional form Its enough give sensory overload Time break begin sharing learning earnest Time handshaking old friends new acquaintances curious movers 142 Model Aviation SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOdI CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPTERS FOR BENT OR KNOB TYPE NEEDLES FOR19-I08 ENGINES PRICE $1200 S&D MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECK OR MO DES PLAINES IL60016
Edition: Model Aviation - 1987/09
Page Numbers: 55, 56, 141, 142
DESIGNED TO MEET Bostonian Cabin West 14 grain Bostonian rules Plan arian canard-configured rubber-pow ered model Although design may seem strange first glance good reasons its unconventional features original Planarian suc cessful contest career consistently turning times about minute under 24-ft ceiling Other modelers have access sites clearance have reported times high 80 seconds Planarians Despite its unusual appearance Planarian relatively easy build trim sure raise eyebrows local flying site Boston Cabin rules place rather strict constraints design model Planarian designed maximize performance under rules also created show design restrictions necessarily mean Bostonians must high-wing conventional Cub-like airplanes canard pusher layout has several advantages design fuselage allows rubber motor run full length fuselage allows motor little longer motor conventional model fuselage tapers point Boston Cabin rules restrict fuselage length rubber weight length pusher model has slight advantage because motor size Both canard wing lifting surfaces decreases effective wing loading model allows fly slowly theory least should improve duration although can also argued induced drag foreplane counteracts benefit its added lift dont know quantitatively effects really dominant Planarian can say certain Planarian does well flown against conventional modelsso something working right aerodynamically properly trimmed canard very stable pitch has good pitch damping significant advantage air flying site turbulent flying outdoors Planarian has noticeable edge over conventional models air gets bumpy major advantage pusher lay out has nothing dowith flight perform ance Tractor models balsa props forever breaking prop blades landing flying walls lights Plan arians pusher propeller well protected main landing gear/fins landing propeller aft model does lead fragile prop collides walls lights design cabin area inspired Bumelli lifting fuselage airplanes 1930s 1940s Boston Cabin rules require model have cabin measuring 1 x 2 x 3 As long cabin area contributing drag model might well work living add some lift too fuselage sort mutant pod boom has less wetted area conventionally shaped fuselage theory least Planarian fuselage should have lower drag conventional fuselage windshield area required rules forms front airfoiled cabin therefore adds no extra drag model Competition fughts Boston Cabin 1~EBarnabyWainfanQ September 1987 55 always launched ground ROG problem frequently encoun tered conventional tail-dragging models model torques over takeoff touches wing tip ground ground-loops tends limit num ber turns motor can wound before model cant takeoff anymore wide stance tricycle landing gear Planarian prevent ground looping simi lar takeoff problems main wheels mounted underwing vertical fins makes fins double duty stabilizers landing gear eliminates need separate landing gear legs Planarian has built single vertical fm top fuselage wire gear legs attached wings twin fins modi fied model took off flew well no noticeable performance change result modifications Construction Planarian diffi cult model build assembly se quence important building fuselage first step build bottom fuselage flat plans rest fuselage built up basic crutch fuselage sticks 1/16 square balsa uprights form side cabin first pieces added crutch good idea use triangle make sure pieces truly ver Continued page 141 Left The fuselage built almost entirely 1/16 sq balsa bottom fuselage should built flat plans cabin boom should built up crutch formed bottom unpin fuselage plans until whole structure complete Right model temporarily assembled sake photo covering should done before final assembly Left Certainly unique airplane anybodys definition Planarlan will quickly prove Its legitimacy hits air flown indoors off smooth surface wheel required nose gear Right cabin hindrance Bostonian models con tributes overall lift model canard configuration handles turbulence high-power motor runs better 56 Model Aviation Left The plan view model shows much cabin area required Boston Cabin rules Planarian design attemptto get area provide useful lift Above far aft main gear three-point stance Planarlan make impossible model rotate takeoff compensate model must sit nose-up gear order make required ROG contains six drawings time around em look suitable quarter-scale larger treatment last drawing book MiniMax ultralight shows powered Rotax engine dedicated Scale nut could build model use Supertigre 2500 power Supertigre minimum cosmetic additions could easily pass scale engine Bills latest book available $495 plus $150 P&H PO Box Escondido CA 92025 hell autograph no extra charge Finally Fred Wallman promised set scale landing gear parts eternal quarterscale Ryan B-5 thats filling local workshop past three years has made great progress Hes developed some sporty-looking drawings looks like gearll fit perfectly interim hes also come up neat method making swirls Ryan cowling quarter-scale swirls have diameter make aluminum printers plate sheets using drill press -in dowel mandrel some 150-grit sand paper glued its base actual cowling sections will cut swirled aluminum aid pre-fitted cardboard templates John de Vries 4610 MoffatLn Colorado Springs CO 80915 RCHelicopters Continued page 53 obo Kalt someone starts importing again Kobe really surprised just realistic Kobe-made Hughes looks air Im going add Du-Bro -scale pilot figure soon have time paint up addition will look realistic side beneflt flying gasoline-powered Helicopters because low oil content fuel virtually nothing clean up after flying session Just wipe off concrete grime charge batteries fill tank go fly again Hughes 300 stays track has needed no maintenance far could attributed part Dave Robertsons skill assembling model credit must also given Kobes robust design Like said before hope someone out finds way overcome yen/dollar problem decides import Kobe line Flying Hughes 300 such neat experi ence wish could share BCNU Larry Jolly 5501 W Como Santa Ana CA 92703 RC Pylon Racing/HagerPlanarlan/Wainfan Continued page 54Continued page 56 15 Pt Jeff Faleo 15 Pt Lee Pohar 14 Pt Ori Steinmetz 12 Pt Dino Goegan 12 Pt Dick Shields 12 Pt Dan Kane Sr 11 Pt Bob Loehner 9 Pt Bob Bentley 8 pt Tom Barrett 8 Pt Ron Jacobs 8 pt Bruce Balko 6 Pt J&ry Aarsted6 Pt Scott Justice 5 Pt Bob Lyttle 5 Pt Dave Smith 2 Pt Fastest time 13969 went Dan Kane Jr Thanks participants thanks Orv Steinmetz interesting entertaining report See next month Bill Hager 706 Glen Haven Dr Conroe IX 77385 tical canted either fore aft laterally next step add upper longerons form side cabin should first attached trailing edge bent position sure bottom fuselage securely pinned down building board before adding top longerons will lift up warp bent place Once upper longerons have attached cabin top cross members side diagonals canard bearers installed putting canard bearers sure details other Zimbabwe Model Products kits call write Full color deluxe catalog-SI 00 C--ZIMPRO MARKETING Manufactuers Repesentatnve & npo e s o P ne can Poductsp PO BOX 3076 OAK RIDGE TENNESSEE 37830 Tel 615482-6188 September 1987 141 AIR WOLF EPOXY FIBERGLASS FUSELAGE S TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 Z n 526 ALL BALSA ARF KIT features pre-assembled wood ply fuselage fully sheeted wings stab & rudder epoxy cowl Lexan canopy hardware CA MASK CA glue works wonders building models right Unfortunately gives enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adjustable straps comfortably fits face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE BLOOMINGOALE ILLINOIS 60108 P S Send catalog modelers safety supplies HUBBY __ outdated old ard older basic RC systems can easily update adding dual rates mixing extra channels frequency changes etc need basic electrical ability simple tools Written R/C tech 10 yrs exp 142 page journal includes sources diagrams charts detailed modifications written simple under standable text Send $1995 check money order aouny RADIO 3001-A Kavanaugh Rd Wilson Ne 27893 Phone 919 291-8548 Hobby Radio also offers professional R/C repairs moda Complete systems service battery pack servos vibration testing new frequency change etc manu facturer repairs guaranteed performed minimal turnaround send sase price list complete services include nose up incidence angle shown side view pians incidence essential trim model windshield frames cut /16 sheet added point along /32 nose sheeting complete cabin structure tail boom built up crutch much same manner cabin structure triangular formers stalled first longeron forms top boom added complete fuselage structure wing canard construction straightforward builder should note two tip ribs surface doubled made 6 sheet instead of/i2 keep sagging inward covering shrunken canard dihedral important stability model make sure get right little too much dihedral canard will hurt too little canard dihedral can lead spiral instability fins built flat plan Re member two oomponents model should covered before final assembly covering lightweight tissue should shrunken rubbing alcohol water doped coat thinned clear dope Assembly straightforward sure fins firmly attached wings Remember also landing gear legs must take landing loads After model assembled add main wheels nose gear nose gear made either Y32 round bamboo music wire very important nose gear long enough model sits nose up ground tricycle gear far aft main wheels Planarian keep rotating takeoff must have positive angle attack sitting gear order liftoff nose gear original model did have wheel plane no trouble taking off smooth gymnasium floor Planarian going flown outdoors off paved surface may want add nose wheel Trimming flying CG model should near trailing edge cabin motor Planarian loop h-in rubber maximum per formance motor should about 1 times length fuselage model flies best left torque choose build right-handed propeller can wound normally fly model right small tab left fin used set turn radius trimming Planarian start winding about 600 turns work up Maximum oontest winds about 2000 turns Remember Planarian pusher must wound back wards very embarrassing release model have taxi madly away reverse trimming flights should made ROG Planarian has unusual flight characteristic Since canard does stall classic sense unless CG extremely far aft model just little tail-heavy will take off normally settle slow mushing descent power decreases easily cured moving CG forward slightly properly trimmed Planarman will circle smoothly about minute typical high school gym Acknowledgement Planarman plans work Carlo Godel did beautiful job very short notice has heartfelt thanks effort FF Champs/Oldenkamp Continued page 60 generous very welcome chilly fingers pounding hearts some pilots offer up nervous test flights no wants first launch model official flight morning skies still leaden its too early able pick out good air bikes fire up some have teeth Im con vinced week-old bites st begin ferrying support gear models out flight line Promptly 700 am real roar begins Gas ship screams incredible heights dethermalizes less instantly Some unfamiliar conditions Taft seek help reg ulars wise ones content wait until aznbient flow rises bit dont have wait long thoughby 800 things full growl time cards begin fill maxes easy maxes understand maxes nevertheless Con centration beginning turn myriad mylar streamer poles digital thermometers hear thud see dust cloud first crash weekend Things underway sure now Are having fun yet better believe Up down line model boxes open reveal many-splendored things drew us first place mind boggles variety design ap proaches gadgetry trends noon lifetime Zaic books have passed three dimensional form Its enough give sensory overload Time break begin sharing learning earnest Time handshaking old friends new acquaintances curious movers 142 Model Aviation SAFETY NEEDLE REMOTE NEEDLE VALVE ADJUSTER KEEPS YOUR FINGERS SAFE DISTANCE FROM THE PROP ALLOWS PERFECT NEEDLE ADJUSTMENT FOR EVERY FLIGHT PRECISION GEAR TRAIN MAKES IT EASY TO SET ENGINE FOR PEAK POWER LOdI CONTROL ALLOWS DESIRED DRAG ON ADJUSTER KNOB FROM LOOSE TO LOCKED COMPLETE WITH MOUNTING HARDWARE S ADAPTERS FOR BENT OR KNOB TYPE NEEDLES FOR19-I08 ENGINES PRICE $1200 S&D MODEL PRODUCTS POST PAID P0 BOX 4026 601 LEE ST CHECK OR MO DES PLAINES IL60016