Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of
Edition: Model Aviation - 1984/03
Page Numbers: 70, 71, 72, 73, 74, 76, 167
Gotha 145 Peanut Scale Text Begins Page 72 ALL TIPS LAMINATED1/16 xI/8 LE 8 SPARS I/32x 1/16 STRUT LOA TI ON LOt LOWi BUT7 SLAA SEE BALANCE POINT F-3 F-3A -V _______ __F-4F-4AF- I~j 4\\ ~ II'I \I I ii* II Ill1 II LI\\J II FUSELAGE MAIN FRAME F-I WORK ///6SQ F-2 * INCIDENCE 1/4 SHEET BALSA NOSE BWCK ALL UL HEADS OF 1/16 SHEET BALSA IK I-I 1-j 2 EX STACKS-BALSA BLKI-D 0 INC1DENCE1/8 SHT FILL 020 WIRE COVER WITH I/32BALSA SAND TO X SECTION 7/8DIAWI-L-- _-F-3 _________ 2F3A _ / I/I6x 1/8 BALSA TE Typ CENTER SECTION 8 BUTT RIBS I/I6 SHEET WING RIGGING WIRES INTERPLANE STRUT ___ ATIONS ____AL L RIBS 1/32 SI-IT UNLESS NOTED E72RALRUDDER OUTLINE LAMINATED 1/32 x 1/16 LE INNER STRUC F-6F-F-8 SA YELLOW BAND STAB 1 INCIDENCE -1 AILERON SLAVE STRUT MAKE 2 1/16 1/32BALSA BLACK CROSSBAMBOO WHITE OUTLINE 2 EACH TRUEFROM 1mm LENGTHCOFFEE STIRRING STICKS STRUTS CA BA NEINTERPLANE F16jF7/ ALL STRINaERS OF I/32 SHEET CUT TO FUSELAGE CONTOUR STRUTS GGTHH_/45 PEANUT SCALE DESIGNED BY- STEVE CRC WE DRAWN BY STEVE CR0 WE INKED BY-DICK GLEASON PLATE I1983 AGE NG MOUNT Peanit ScaLe like bipes youll love handy Peanut Scale size Its ghost ship though structure sufficiently complete finished model has very pleasing realistic appearance THIS BIPLANE quite unique little aircraftperfect Peanut Scale what call square airplane because model has 13 span 12 length makes longitudinally stable ship Though details full-size bird somewhat obscure few facts complete title bipe Gothaer Wag gonfabrik AG GO 145 Designed Al bert Kalkert trainer created test flown 1934 So successful GO 145 GFW firm joined AGO Focke WuIf BFW largescale production Some 10000 eventu ally built manufacturing licenses being ac quired Spain Turkey During WW lithe aircraft flew Maybug Communications Staffel 65 Roumania German pilots learned fly airplane before Great War Although planes manufactured known exist day three-view drawing model scaled taken photostat published Flying Scale Models Aero nautical Press Ltd 1956 Watford Herts England Color markings data Aircraft gray Balkenkreuz fuselage upper lower wing panels Hakenkreuz fin rudder Yellow band aft fuselage yellow spinner Construction model built lightest contest-grade balsa fuselage built conventional manner using /16 sq frame bulkheads stringers Start out laminating wing tips rudder out line stab 1/32 x 6 balsa drying lay down fuselage sides A6 sq building frame over other both sides will same dry remove sides plan add cross members bulkheads stringers Add landing gear frame binding thread Glue bottom stringers Plank nose /32 balsa Carve front cowl small balsa block made gear fairings sandwiching wire between 2 x strips balsa sanding streamlined shape using small emery board Wheels turned balsa Dremel Moto Tool aluminum tubing photo left shows contrast between gray green colors Rigging between landing gear made monofilament fishing line Its interesting subject angle Gotha 145 makes eye-catching design type Scale modeling category little detail goes long way adding realism model Dont skimp un adding proper markings turned balsa wheels worked out nicety can seen right-hand photo Maybug insignia fuselage left sidepainted tissued applied rubber cement Steve Crowe design what called square airplanethe wingspan fuselage lengths being nearly equal proportions excellent model flying full-size shin colored arav over author took some liberties spraying top surfaces green Floquil RR paint Landing gear po. dtive thpoirn llent taeeui coaraclerlsllcs ne taiis small piece OT bamboo right-hand result g l pictured upside down show bottom stringer exhaust details Cockpit area has 1/32 balsa sheet wrapped over glued formers Rounded gussets top wing center section help prevent covering wrinkles corners Finished t-ucture seems almost too pretty coverand certainly gives impression being larger Peanut used center bearings 2 balsa planking extends nose block aft cockpit isnt difficult bend balsa over formers piece use care planking dry make up pattern cockpit open ings lay over planking carefully cut out Carve headrest exhaust manifolds balsa scrap Tail group tail surfaces built flat /6 sq made elevators separate So could moved trimming ever found flight tests elevator adjustment wasn t necessary recom mend build piece save bit weight Build rudder same manner Wings making ribs like stack blanks cut shape same time easy also can make few extras case should goof After ribs cut lay down A6 X /s spars Add ribs making sure 90 deg spars Put leading trailing edges wing tips center section etc Glue laminated tips cut down last tip rib until fits wing tip bow dry remove panels sand smooth prior covering Continued page 74 wing struts cabane interplane made small coffee stirring sticks cut down size sanded streamlined section almost light balsa much stronger comes not-so-easy landings during testflying stage Assemble cabane struts per plan Using side elevation plan make small template will fit between bottom upper wing fuse lage cowl Temporarily tack-glue tem plate cowl wing can now fit cabane struts fuselage template made accurately wing will have proper incidence Before covering model tack-glue everything together make certain cabane interplane struts fit properly between wing panels Fitting easier accomplish stage assembly later everything fits ready cover model Covering finishing model covered superlite white Japanese tissue First go over structure again fine sandpaper make certain smooth use yor favorite covering technique Mine apply three coats Sig nitrate dope structure use thinner attach tissue After covering components tissue shrunk alcohol seems better water shrink ing covering too tightly gave whole model coat Sig low-shrink dope Finally German markings applied before model assembled Assembly Again tack-glue template used previously cowl Lay upper wing template cabane struts everything lines up glue upper wing cabane Tape landing gear axles workbench should have smooth flat surface Raise fuselage level position thrust line parallel bench surface Make two templates can slide between table top underside lower wing panels Tack-glue tem plates bench proceed line up lower wings Fit interplane struts apply glue everything line Check front view dihedral equal both upper lower wings Glue stabilizer rudder model made removable nose plug allow easy thrust-line adjustment better access rubber motor pro peller shaft runs through Peck-Polymers nylon thrust button 5-in Peck plastic prop supplies thrust Flying Start test flights 12-in loop /8-in rubber Find some tall soft grass fly over help keep damage minimum Balance model until descends smoothly satisfied glide install prop proceed power phase Start out about 100 turns gradually increasing power flight Continued page 167 COWL 8 COCKPIT COVERED WITH 1/32 SHEET BACK TO STA F-5 HARDWOOD THRUST 7 - II I____________________________________________________________[v32][b160910644300]] I 46 SO NI ~II gII -4-Iii z-BULKH D\ F-2kjI 7I020 PIANO Free Flight DURA TION Bob Meuser IN THE LEAD ITEM Januaiy 1984 column titled Strange configuration presented joined-wing concept al though didnt call invented Dr Julian Wolkovitch Shortly after publication issue before copy arrived received phone call Dr Wolkovitch later copy letter addressed Editor taking task aspects presentation Dr Wolkovitchs letter fol lows December 4 1983 Gentlemen Has life ever changed magazine article Bob Meusers account patented joined-wing configuration Model Aviation January 1984 spelled name incorrectly moved residence California Ohio inducted Air Force Worse yet almost technical statement article misleading wrong Because NASA US Navy several Universities aircraft manufac turers conducting extensive research joined wing promises aero dynamically structurally superior conventional wings must correct serious errors Mr Meusers article wind tunnel tests agricultural airplane design done NASA Air Force showed excellent aero dynamic characteristics NASA test re port Ref 1 predicts no problems full scale design Burt Rutan hasnt built full-scale because couldnt agree patent royalties because technical objections Bob Meusers drawing inaccurate airplane has unswept outer wings thick fin containing pilot shown photos published Aviation Week Ref 2 Joined wings have shown lighter stiffer conventional wing tail systems Ref 3 provided spars located near upper leading edge lower trailing edge As explained US Patent #4365773 gives depth resist loads acting perpendicular structural truss formed wings N 19 i ICondnsgt paper / / / / / -7 3 r M K~2 Typical hjir5c 1Jicjromt wing 3 34 Microjim 11 63 31s9ruct AWN Ir~85------Several joined-wing models have flown proper airfoil design washout front wing washin rear wing show good stability control tached photo illustrates quarter-scale model ultralight Longhorn will fly full-scale form 1984 Bob Meuser would like visit Palos Ver des CA Dayton OH would glad demonstrate him joined-wing model has exceptional flying qualities cludiong aileron-only turns flat glide safe stall/spin characteristics No joinedwing model kits plans yet available readers experiment simple sheet balsa models following principles explained references cited should able design own joined-wing air planes Sincerely s Dr Julian Wolkovitch References Ref 1 White E R Low-Speed Wind Tun nel Test Joined-Wing Agricultural Aircraft Model NASA Langley Research Center Report published 1984 Ref 2 Joined Wing Aircraft Planned Agricultural Applications' Aviation Week February 15 1982 p 144-145 76 Model Aviation Patrick Deshaye holds three four Indoor Ornithopter records Open category wild-looking model Bill Northrop maintains anything two wings better guess Bibitte proves hes right Deshaye Olympia WA also forming thopter enthusiast group Look information column Photo Joe Dvorak l3lt3lttEr Pcatrick PsIuze Mationat Records Indoor Optn Ornitkopter Cat II RADIO EQUIPMENT EXCHANGE Box 561 Park Forest Illinois 60466 List used radio equip ment sale No fee listing Escrow available Send SASE details 21 Old Time K HL Gliders 11 Contest Rubber Send 50C for4 Satellite Kits 82/83 catalog3 Nastalgia Power Pacifiers & LOTS OI GOCI StUFF FAIModel Supply II P0 Box 3957 ance CA 90510 GET ORGANIZED s set 01 4 sturdy FrIes 5os over 4 years ot yorcr Favorite Scit magazines 4 MAG FILES $495 Send Sd 95 pbs $1 00 postage ttandltng DGI4 INDUSTRIES P0 80X388-t DOVER NH 03820 COMPLETELY FINISHED R/C AIRCRAFT Completely Finished R/C Aircraft s & Types Radio Engine Only CG Sky Tiger--63 trainer $22500 Sig Clip Wing J-3 Cub-54 Span $25000 SEND FOR COMPLETE LIST HOBBY CAPITOL R/C 46 N Oak St. Ventura California 93001 node requires pilot active model once possible use half-dozen A1 models whole season now need assistance computer calculate what well need upcoming year Thereve few unfortunate de velopments over decadebut awful lot good things make up Charlie JahflSonr 3716 graham St San fliego CA 92109 Gotha 1 45/Crowe Continued rjace 74 intil have model trim Ising winder go broke prototype flies left circles about 10-ft dia transition power lide smooth havent flown indoors let outside gets flights about 35 O seconds painted model Flo luil railroad paint weighed 15 rams motor built another tne would leave plain white tissue olor reduce weight ummary Someone said got two /ings its gotta good am rgue statement Keep model ght will have good flier j Duration/Meuser ontinued page 77 pin using felt marker So what does appreciation steals AMA National Record right under very nose Fine guy Anyhow writing holds Cat egory II IV national records flight times 235 353 345 Walt Erbach holds remaining Cat III record astonishing 423 Walts model conventionalby ornithopter standardsbut very light rather long Patricks model 28 grams weighs almost four times much Walts rather unusual design being sort biplane history multi-wing ornithopter models goes back least early 1870s Frenchman Jobert built arti ficial dragonfly employed two wings tandem forward wing rocked counter clockwise rear wing rocked clock wise two wings driven single rubber motor through crankshaftand-connecting-rod arrangement cranks being phased about 1800 apart 1939 Dr Erich von HoIst Germany built similar rocking-wing models test theories insect flight mid-Fifties John White England built model wing ar rangement used Deshaye achieved flight 115 sec June 1978 issue Mode/Aviation showed photo threeview biplane ornithopter Danyl Stevens set Junior outdoor Category II records mechanism some what different Deshayes no fixed-wing area Deshaye de veloped design collaboration Reg Parham England collaboration de veloped through correspondence arose out International Ornithopter Postal Contest arranged David Erbach Unlike earlier multi-wing thopters phasing wing flapping nat 1800 two cranks lie plane common shaft Rather cranks phased 1200 apart wings gallop rather trot Deshayc says works better Deshayes model rugged heavy despite its performance quite remark able could cut weight half appears feasible would seem flights four- five-minute range would cinch Two new modeling organizations formed first called Ornithopter Modelers Society has formed Patrick Deshaye further interest exchange information relating rubberpowered ornithopter models no membership fee will one- two-page newsletter published perhaps six-month intervals Since Deshaye foot ing bill out own pocket seri ous ornithopter enthusiastsnot newsletter collectorsshould join Write Deshaye 6401 Wildflower SE Olympia WA 98501 second organization called Fun Flyers being put together Joe Wag ner intention promote noncompetitive model building flying kinds sport-type aircraft particularly can flown school athletic CLE1LAND GIANTS -~T1LGIANT SCALE BUFFS Worlds Largest Gas Plans Assortment INTERNATIONALLY FAMOUS C-D QUALITY MASTER MODELS PLANS 72 taoornbe Sedan $23 07 Pt 939 73 N Miteir Roeth 94 7'6t Hosnord Pete Base $35 65 MMataadt 528942 70 Bayte GeeBee $32r 78 Sopreith Pap 4i nrarlne S6B $24 DR Mosquito 8b$3s nrarine S6B 532 10858 MosqaBarrrb$48 Harnk PdE 936 6t Cortiss Rabirr 055$td rek PdE Pt $24 98 St, PTt7Kapdet$48 eed Vega $24 99 NBtk Widoca P6t$65 Patel LN94 $28 7t DacgSC3 Oran$20 tIes GE t F $39 95 Snag $03 Tran$40 coope Sport $36 96 Baa-Ic Teaaco t3$32 prBctldog $39i tOBCat020t/4 L&S$56 cca C3 Spt $35 79 A, SptPars A2$3a ouglas 0-38 Gb $24 60 Dooglas M2 Mail$24 32 Doustos 5-38 01 $491 68 Bristol Boltdog Ptr535 94 Page Curt Racer $45 59 BraccrrBaceMstA$54 7t Martin EtO $Orrrb $29 07 Grcrrr Bearot P99 $54 78 Torrrers WW Rev $35P 73 Tracel Air 6000 $24 64 Cot Gaslrk Pt tC2 $39 07 Mart M8-t Bare $44 94Cu Gahk Ft tC2 $04 91 Liadbergs NO2t 539 66 Det4an Carrret Boo $24 61 AEG DIV Lr Ban $24 62 Ha MrMulligan $33 tOO Paitch PTt9 Tr $59 94 Hoca Mr Mulligan $45 00 Waco TapnrWirrg $391 65 Bac ng F-26A Ptr $36 75 W6sId Lysender $32 84 Baerrrg P26A FIr $48 tOO Westld Lysander $49 69 Waca Cd Cabin $36 57 Ford Trirntr 4-AT$28 64 Beeclr C17B Stag $38 70 Ford Triart dAT$45 j96 Beecb Ct7B Stag $49 t 14 Pard PriorI dAT 559 55 Lock Electra $24 94 BerIJayce OFJ2 $56 82 Lack t t Electra $32 93 Loening C-2Arepb $69 63 Stinsan T/W 59781658 GroreJ2P Duck$39 81 Stinson 0/9597$3478 GrcreJ2P Duck$56 123 Stinson TW 587$3259 Gotba 010 Bore$22 Fr 928 $20 117 Garbo GtV Bare $39 Pr P28 832 dO Doog 0-AdA abs $32 Fr P2-B$45100 Sibo S38 Arepb$49 inunPif74 TL Peso0 Spec$4360 Eon 150 Sport$36 65 SkyrocketOF5F1$2090 Ba. 105 Sport$49 56 CotWnrhk P40$2490 StinALore Wirrg$56 adSighing P39$3980 Martin 74 T4M 1839 56 RepSen8ee An92475 HPge 0400 Bareb$55 o8Areph$30100 9pg0 0400 Ban$49 J3Cob 65 MChina Clipper udsor Bnrb$3897 MChino Clipper$60 FOFHellcat$2971 Loccson C2 Airlin$24 Bl7GFnrt$296690133 8U Jingre8391 8170 Fart54960 EronWinkle Bird$45 Wbrlreid$2454 Cort Sacilt SF934$20 ocion Lirdberg LSirius nraVOnI$3955 CnckrOind Ftr8orr$32 NO K SAVAILABLEIPrices sobject tochange tber Scales Sians Ftare6 Span Conrylete Pattern Frare 25c Add 10 roollordetslorsbipprng&ins etc OSACon &Meo EIereherradd IS l20sifbyairl Protorral catalog $1 50 Price list sectron alone 55c *l1v Foreign odd $1 001* OCLEYELAND MODEL&SUPPLY Co tB387B 0trrt AsClenelend Ole 44102 March 1984 167 THERE IS DIFFERENCE UT.$450UT.$560 UT.$760 GAL 5GAL 5 GAL 0 $RSM 91880$URUM 00 DRUM $50000 Drums available directly trom tactory Duke Fox flying model airplanes 30s alcohol fuel mixed himoelt early 405 discovered miracle ot nitromethane total world production less quart day has worn Out motors life tests fuel producers ever owned Result knows little about what takes make motor run well last long time Use Fox fuel . costs little motor will last great deal longer Hal LiOB 15011 6d61656 Fox MFG Co $305 TOWSON AVEFOOT SMITH ARK 72901 teshaye turned out Some 18 months o wrote asking information Out ornithopters sent him plans lappergasted along everything knew out thopters wrote head of