This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. " I IiW-8 ~1--025 IW-9 UE 6io6*8Al-6A KR ALL PARTS UNLE5 O114ISE s wziwi 8@oi5 4@ o2s r S 1 64 4OI54o5 . 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159
Edition: Model Aviation - 1989/07
Page Numbers: 66, 67, 68, 69, 70, 71, 157, 158, 159
This preserved Henri Mignet 280 full-size Pou du Ciel Rubber model conceived littie tandem-winger survived German occupation France WW ii liaison plane flying French Resistance no small feat considering odds time Its survival can probably attributed its small size portability healthy dose pure luck Photo Bill Warner HENRI MIGNET 1893-1965 tandem-winged ultralights hold special bittersweet place annals amateur aviation After years building crash ing tireless radio technician inven tor finally came up design worked HM-14 Pou Du Ciel first successful version long line airplanes affectionately dubbed Flying Fleas enthusiastic French press coverage fed desire European middle class al ready stirred idea flight expensive easy-to-build everymans air plane dream flying become reachable reality Pou du Ciel overnight sensation Hundreds built first nine months after plans came available 11 unlucky homebuilders including Henris close friend Robert Robineau dream became nightmare Sadly Flea flaw Perky cute innocent look ing though appeared ultralight turned out have vicious fatal dive tendency early hang gliding movement suffered uncanny reprise Pous misfortune Rogallo Wing observer described picturesque accuracy full luff dives news fatalities caused de sign overwhelmed Mignet grief slotted tandem-wing arrangement coupled insufficient throws control sur faces suggested possible cul prits Pou grounded immediately England British Air League soon afterward Air Ministry France spite anguish Henri worked day night full cooperation Air Ministry uncover problem Pou first full-sized aircraft tested wind tunnel Chalais-Meudon Within three months design problems HM28O Pou du Cid winner Category Ill 1987 Intergnats unique Pis tachio Scale tandem-winged Free Flight model inspired original HM-280 now residence Musee de lAir Paris certain attract everyones attention its fine detailing good flight characteristics U Mark Allison 66 Model Aviation solved tarnish Pous reputation permanent Though no further fatalities occurred after changes implemented press public turned backs Henri Mignet family sadly packed up left France After two years America shortlived successful aircraft manufacturing venture Chicago Mignet family re turned France 1939 During pe riod France under German occu pation HM-280 earned its place avi ation history example plane flown across Channel England 1941 daring pilot M Fretag re ceived medal narrow escape An other HM-280 used liaison plane French Resistance No doubt small size portability camouflage airplane contributed its pilots survi val Now preserved Musee de lAir Paris HM-280 full-size counter part Pistachio Scale version described first came across three-view drawing HM-280 construction article British Pou HM-14 Model Builder April 1981 streamlined nose graceful elliptical wing shapes HM-280 immediate appeal over pugnacious awkward HM-14 Compared photos three-view HM-280 appears very accurate small exception cowl area made correction front view lower part cowling curve ap pears plan three-view can see easily photo wont echo French newspapers dubbing Scale model everymans air plane Beginners should study plan perhaps take advantage some technical information choice construc tion hintsbut save project until theyve honed skills easier models parasol configuration very attractive fragile difficult execute align Ive included enough detail seasoned scratch-builders can create ac curate unusual WW II Jumbo Scale Coconut Scale version com pound gear setup similar devised Bennett Wetherell see Flying Models October November 1988 would over come disadvantage short fuselage July 1989 67 Left Bare bones shot enlarged rudder experiment actual scale rudder however turned out best solution photo Alan Parker Right covered model correct scale rudder tail numbers shown best guess See plan correct size letters numbers flag insignia discovered later photo magazine article Photo Mark Allison greatly enlarged photograph partially completed cowl area can seen keel goes through former F2A way front former Fl narrow wedge added keel between Fl F2A conform cowl shape seen side view plan Photo Alan Parker partially completed airframe shown prior assembly real pistachio shown upper right near cowl cylinders presents dramatic size contrast Photo Alan Parker egg-crate construction cabin roof balsa shown 015 thick fuzziness extreme close-up unavoidableIts already sanded Photo Alan Parker 015 RIBS ED STRUCTWE OPTIONAL SCALE RI9 SHOVJN /i~ 51-CT LIGHT II 55o6Ib L / RP 021 II I II STRIP OF 04 0OON RSIQE OF tTI4 EXrAC LE WIIIGTELE STABTE II =-i-- ==- w-ISI 015W-2S2 SPLICE - IPLICE- 025W-3 015W-4 015W-5 IxW-6 05 --ii-OISX W-7 //7Lf.. 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BALSA 11W W4EELS ARE TURNED FOAM o Li I3ALEA FIiTINGS GM4EOO A$LE / ALL STRUTS WARD BALSA REt NFORCEOID WITl-l CA1l3GN SORON FIBER\SALGA CA GLUE 1A3LE TEFLON lEROM SAER 4 DIAOJV5ILVERWASHER CUT n IIY R PAERN VIIT 1987 INTERGNATh WINNER CAT t94O VARIANT OF fIt1 28O I4IGNETS POUdvCIEL PI5rAcHIO SCALE MOQL MARI ALLISON GRAPI-IICS July 1989 69 larger versions Current Pistachio Scale rules 6-in fuse lage 8-in span favor configuration like HM-280s its short fuselage long wide-chord wing Lower wing loading lower prop speed aided large span allows bigger prop lower flight speed its resulting lower drag add up longer flights Miami Indoor Airplane Model Association rules al low single-covered surfaces penal ty thus saving weight adding camber enough scale detail French military Flea bring tears joy eyes hard-boiled Scale judge end article list favor ite suppliers material youll need build little beauty Construction fuselage HM-280 usual slab-sided box wings poking out Since cross section narrows toward bottom begin construct ing upper lower decks use tape stead pins makes longeron curves accurate Build uprights joining two decks Add bottom former F2A angled forward side view keel hot soaked preformed over side view Shape fin gers until stays correct curve tape down until dry After gluing keel F2A bottom tail post stall keel braces nose plate top form ers arches over sections F5 F6 Remove crosspieces illustrated dashed lines plans between sec tions Fl through F6 clear rubber mo tor Add diagonal braces fuselage sides Add /32 stringers front top bottom cabin roof can carved light foam built up 015-in balsa sheet no difference weight used very lightweight balsa 55 65 lb per cu ft parts except struts Try test break few strips light balsa Youre looking stringy light balsa punky brittle stuff yours does test out brittle use thinner pieces slightly heavier balsa instead As build twist push subassem blies carefully checking strength reinforce boron filament very nar row 010 014-in strips pulled off edge 003-in carbon fiber sheet necessary Use extreme caution work ing boron filament Wear safety glasses Keep careful inventory length length resulting piec es wont have lost pieces hiding carpet break boron filament between two pieces low-tack clear tape Scotch Magic Plus #811 #16 X-Acto blade rubber mat fold tape over tiny broken ends put bag wastebasket successful modelers dont use bo ron dont feel compelled Thin narrow strips carbon fiber tiny carbon fiber hairs pulled tow work very well too less difficult handle bo ron dont slide fingers along edges carbon fiber sheet youll get splintery paper cut youll never forget use thinned cellulose-type glue tack boron carbon fiber position apply thinned Flex Zap allowing wick under boron carbon fiber make glue applicator mount thin insect pin onto end balsa strip using cyanoac rylate CyA glue bending pin tip 450 roughening sandpaper holds drop thin glue spread out along its length wipe tool off between application Wing technique making out lines shown detail plans would add must thoroughly wax edge template use hot wax runs top edge burning candle thick buildup cooled wax template reheat carefully butane lighter larger versions HM-280 would suggest laminating outlines least wing tips joining leading trailing edges long scarf/splice joints diamond cross-sectioned outline designed reduce drag singlesurfaced wings slices shown tip necessary prevent outline buckling should buckle anyway use laminations wing tips parasol-winged plane needs dihe dral high-wing cabin plane pen dulum effect applies dirigibles airplanes youre skeptical experiment 00 dihedral parasol Free Flight stick model beautiful Flea larger models double-curved wings ori ent spars vertically better resist land ing handling loads two major stresses affecting health models day cabane struts landing gear struts full-size aircraft round tubes model risked losing scale points der gain few extra flight seconds shaping round turned balsa struts streamlined cross sections HM-280 ac complished second-highest flight time its category 418 seconds mere 18 seconds maybe good decision its high static score combined number two flight rank model nar rowly won first place Category III propeller important mov ing part model deserves special tention shown plans fuses ideas stolen such diverse sources model isnt much worse wear after having flown several thousand miles California Florida back proxy flown victory Mike Arak 1987 lntergnats model weighs 300625 grams very close lowest weight allowed Category Ill three grams Flights 39 41 seconds made 035 x 10-in loop rubber about 1300 turns Photos Mark Allison 70 Model Aviation HENRI MIGNET Illustration Mark Allison Illustration Mark Allison Mother Nature bird wing shapes Eugene Larrabee prop designer Gossamer series man-powered aircraft NASA jet speed eight-blade prop fan Barnaby Wain fan CP VanDam Great Speckled George Perryman See Flying Models De cember 1988 page 74 thoughts hind propeller blade shape Otherwise just try itor own favorite shape past usually made up balsa form molding prop blades Recently Ive using old jar method good re sults use 22 angle off vertical rather usual 15 degrees Theres nothing magic about it just gives washed-out blade tip prefer use jar diameter approximately onehalf prop diameter gives slightly camber probably adds stiffness efficiency Im still experimenting two-layer laminations provide perma nence twist camber blades added strength important model small usually lands its nose spinner turned out hardwood same reason Youll also need weight up front Reproduced courtesy Aeromodeller Plans Service 4/ x\ NM 210 U j kcz7 turning wheels spinners etc glue block foam balsa hardwood Im using top 1- 3A-in-dia sanding wheel bit water-soluble glue such Tite bond Elmers allows sanding wheel soaked cleaned off after turn ing operation use files various grades sandpaper shaping parts usually setting motor tool slowest speed dont have variable-speed tool check local sewing machine repair shop used foot-operated speed control ler wire can plug drill one-speed tool Remember safety goggles dust mask Turning parts near nozzle vacuum takes care dust problem working indoors Covering finishing side view shows typical shapes sizes twocolor camouflage pattern reference used came article Henri Mignet Vol No 1 Fall 1976 issue Air Trails magazine wings just use similar sizes shapes sand spin ach colors double-surface wings used undersides also two-tone camContinued page 157 IA J b4 IC H M 210- MENGUIN ENGINE 1 NH] / AEAOMODELLER MUSEE CE LAIftPARIS TYPICAL WING SECTION NM 230 FTI1IIII July 1989 71 TOP SOT TOI4 II very smooth-running tail rotor unusually high degree control accuracy tail rotor drive system based 2mmdiameter steel drive shaft design has proved highly reliable Now shaft sup ported special brass tube tube needs lubricated initially over its entire length af ter installation drive system operates freely vibration requires no maintenance Magic Ranger brass tube set slot ted wood strip installed top fuselage boom open trainer version tube sus pended tail boom several supports main difference between open trainerconfiguration Magic fuselage-equipped Magic Ranger found tail boom canopy canopy assembled two halfshells fitted over radio equipment mechanical assembly secured side two knurled knobs complete servo sup port structure same both models tail boom Magic aluminum tube attached mechanical assembly us ing newly designed composite fixture solidly braced additional support tube Flexible landing gear supplied black stan dard although white now available op tion main rotor head control system System 88 virtually un changed Based control movements offset 450 system has proven outstand ingly effective has eliminated completely tendency model balloon dive flying forward fast speed new fea ture injection-molded servo structure As can see Magic sounds good its long blades tail boom should smooth capital S So much new stuff Its summer Get broken bird back together lets go fly BCNU RC Battle/Good Continued page 65 son Fred Marks John Strong C Torrey Williams 1983-1984 George MyersChairman MembersJack Albrecht Dave Brown Bill Hershberger John Lange Fred Marks Jim Oddino C Torrey Williams Al Watson ConsultantsBob Aberle Walt Good Dick Jansson 1985-1988 Fred MarksChairman MembersJack Albrecht Dave Brown Steve Helms Bill Hershberger Dave Hil senhoff George Myers Bob Novak Pete Waters Jim Oddino Warren Plohr George Steiner ConsultantsWalt Good Dick Jansson individual name cluded above listings has volved Frequency Committee since 1963 AMA president since became AMA ex ecutive director 1964 name John Worth John has longtime personal obses sion RC has contributed immeasur ably RC frequency story through executive capacity AMA Sorting through hundreds files preparing article Ive seen hand tying gether reporting RC Committees ef forts Thanks John being long-term contributing phantom member AMA RC Frequency Committee Pou du Ciel/Allison Continued page 71 mouflage lighter colors seen black-and-white photo such light grays blues Using artists airbrush opaque watercolors also called designers colors taped condenser paper over paper wing stab outlines cam ouflage patterns drawn method colors preshrinks covering operation fuselage bit trickier pattern used centered cowl cabin sections sides bottom sides left rightsort Scale model Ror schach inkblot shape painted three sets Id have extras mistakes repairs fuselage covered separate pieces sides lower sides upper cowl area lower cowl cabin roof Trial fit cabanes landing gear cabin side panels fuselage removing before covering fuselage pieces painted separately glued completed fuselage windshield added using RC-56 glue along edge cabin roof prepainted wind shield posts Glue rear edges windshield rear cabin posts before glu ing side panels posts did glue front bottom edge windshield top fuselage used Pactra enamel engine cylinders top cooling fins painted unit gloss black mix silver little cop per little dark gray dry brush lightly across cooling fins high lights edges fins giving cylin ders oily slightly rusted look takes exhausts get same treatment headbolts pushrods silver highlighting contrast Spark plugs rocker covers white Plug wires prop blades tires flat black dark gray MIAMA Pistachio Scale rules include three weight categories Category Iunder two grams Iltwo three grams III over three grams strategy try build lowest weight allowed par ticular category taking advantage close correlation between wing loading duration dont like ghost ships dont like empty calories either concen trate scale detail ie weight toward front end intention dazzling judges eye great en gine spinner gas cap etc barely notices paint job gets more transparent toward tail its lightweight rubdown registration numbers THE LEADER IN COMPETITION NEW THP DESIGN DIAPRICE 15 16 NEW PRO SERIES 3 II 1 NEW HIGH TECH AIRFOIL SECTION 10 TO 200/o INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534 634 72833/,456 8334568 94566Io77 104566/7 106W8W 106EW 114677/o7/ol8 115W 116EW 1167 124W 125W 1256 1356 1456 1556 164/N 16678 RC PYLON RACING SERIES 500 DIA PITCHPRICE 75N 5N SERIES 400C 866T7/o7 977/,73/ W WIDE BLADE 0EW EXTRA WIDE N NARROW July 1989 157 PROPELLERS TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 677/o8 677/6 67 678 THERMAL CHARGER what looking electric sailplane good looks easy build fun fly great performance Thermal Charger Wing Span Wing Area Motor Included 60 Inches 545 Sq Inches Leisure 05 Electric % PRECISION PRODUCTS INC 714 592-51 510 E Arrow Highway San Dimas CA 91773 love Scale model competition because motivates people best work love seeing incredible masterpieces MIAMAs Pistachio annual Intergnats ideal proxy postal event easy lowpressure entry international competi tion dont have last two years Mike Araks excellent videos contest have available whisk right flight line Doc Martin Pistachio Scales principal promoter puts out wonderful hilarious homespun hairy gem newsletter called Hangar Pilot Its Indoor Free Flight delight Scale sport plans ir reverent anecdotes best-detailed contest results including model weights scale rank model name builders name Ten dollars per year cheap price pay ticket international microscale competition Flying Balance model front spar lead spinner isnt sufficient balance apply tissue glue front prop blades before resorting weight inside cowl rigging installed after plane flight trimmed weighs close three grams empty Pistachio version will use approximately 033- 038-inthick rubber use motors 2 /2 three times hook-to-peg length glide Pistachios just about nonex istent Ive seen falling leaves better compensate use much rubber canbut much stops prop youve built some downthrust used incidence angles shown wings good trimmed flights within reach Use short motor low number turns trim Concentrate achieving long powered glide Adjustments made raising lowering front wings trail ing edge thrust direction proto type flies left under torque large prop 1 right thrust 00 rudder gradually opens up its flight circle motor winds down have trouble trimming using less pitch prop surprisingly effective way ing things out Enjoy flyingand winningwith own home-built museum piece Suppliers Ray Harlan 15 Happy Hollow Rd Wayland MA 01778Boron rubber strippers balsa strippers scales Jim Jones 36631 Ledgestone Mt Clem ens MI 48043Boron contest balsa favorite lube torque meters carbon steel blades strippers etc Indoor Model Supply Box 531 Salem OR 97304Contest balsa rubber strip glues plans coverings kits music wire thin sizes etc Oldtimer Model Supply PO Box 7334 Van Nuys CA 91409Bamboo balsa rub ber coverings plans music wire washers etc Peck Polymers Box 2498 La Mesa CA 92044Balsa basswood rubber lube music wire winders washers props plans kits best book know flight trimming Making Scale Model Air planes Fly William McCombsa must have opinion Jim Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817Free Flight supplies supplier know carries 003-in carbon fiber sheet Dick Blick Art Materials PO Box 1267 Galesburg IL 61401Rubdown letters watercolors designers colors airbrushes Foam Scale Models Box 662 St Croix Falls WI 54024Foam three colors two weights plans Hannans Runway PO Box Escon dido CA 92025Peanuts Pistachios series books chockful inspiration plans supplies books MIAMA newsletter Hangar Pilot 2180 Ti gertrail Ave Miami FL 33133 TRAINERFOAMAIREMONARCH SPANb$ AOSS SPAN74SPANb WEIGHT 2 lbs 3CH'WEIGHT 5 lbsWEIGHT 2 lb 16A95 POWER 0 cc$1A95 POWER 0POWER 0 cc 3 4 CHANNEL4CHIFOURCHANNELFOUR CHANNEL CALL OR WRITE FOR FREE INFORT 1 NEODESHA KS 66757 ON SAC KITS AND QUADRA PRICES316 325-2821 FREE SHIPPING ON KIT ORDERVISA MASTERCARD ACCEPTED 158 Model Aviation Inspiration plans ticket interna tional proxy competition FF Duration/Linstrum Continued page 73 tation FL 33313 will send full details anniversary bash Wennerstrom torque meter designer homemade easily available materials Outdoor torque meter inspired per formance Wakefield World Champion Bob White Taft CA Wennerstrom said PMAC News Watching Bob White wind rubber comes apparent torque meter inte gral part consistency torque value some number turns noted way up motor wound torque rather turns As result few motors broken yet close maximum energy obtained flight inexpensive torque meter will job Stans design especially well thought out terms practicality function convenience relatively simple make items avail able hobby shops minor addition shown original drawing depicted column small latch prevent scattering winding hooks mo tors break Build meters now im prove performance drawing selfexplanatory materials specified Panda rubber bombs out Once have made torque meter may looking some new rubber try want experiment get some inexpensive tricky rubber can try Panda rubber George Schroedter got China George chief rubber importer Cham pion Models very enthusiastic about Panda gumband until discovered broke easily despite having great energy storage seemed fine Indoor fliers strip up thin sections too popular Outdoor crowd warning George selling stock Panda off reduced prices can get 500 grams thats about 14 oz $12 post paid Widths available 2mm 4mm 6mm Promises Chinese good rub ber have just delays disap pointment galore FOR SOLID SURFACES WE RECOMMEND SILKSPUN COVEPITE IMPROVED TO GIVE SMOOTh GLASS FINISHESI 9 NEVER ANY BUBBLES no iron-on can match ULTRA-LIGHIWEIGHT less 4 az/sq ft 250F LO-TEMP ADHESIVE works sheeted foam TAKES LESS PAINT built-in tIler coat Todays Silkspun Coverite will surprise Its new its powerhouse adhesive its new slick outer surface Todays Silkapun Coverite much much smoother original version recommend solid sheeted surfaces including sheeted foam simply cannot equalled goof-proof bubble-free application Produces glass finish faster less coats other covering Bar Ask dealer let see it. touch ALMOST SEAMLESS seams melt together TEAR & SCUFF RESISTANT iron-on thats 100% rip-stop 06 C@VERITE would rather stick good old Champion Made USA gumband George has purchased bunch regular USA supplier want can get box $1250 either event send check MO Champion Model Products 880 Carmen Court LaVerne CA 91750 Getting good balsa Terry Thorkildsen ace FFer San Valleers California knows just pick best wood highperformance ships recent issue Satellite revealed does procedure sim ple really Let Terry tell live near hobby shop carries wood heavy takes A-scale RC engine lift need find another source fortunate live near Tony & Addies Hobby Lobby Burbank CA Otherwise need try mail order can suggest two good sources Lone Star Models Texas Hobby Woods Clovis CA both have ads Model Aviation have dered both product first-rate order 4-to-6-Ib density Lone Star will get Hobby Woods offers densities specify what want trailing edge stringer stock best have ever seen both carry longer lengths dont want make splice fuselage both stand behind products prices welcome relief also carry spruce vanout other modeling woods Try know will satisfied FUEL ALERT! Low Fuel Level Warning System RIC Planes Helicopters Boat Flashing strobe lamp warns fuel reaches predetermined level 100% solid state design reliability Easy install Simply insert solid state probe through unused port standard fuel tank No timing . No guessing . Help protect investment Fuel Alert $2195 AEROTRON Route 2 Box 279 Gerald MO 63037 July 1989 159