DURATION Bob Meuser BUBBA CLEM Whatever means Maybe Nakashima put cartoons good names used up Flapped Cream Peas Punch Toothpicks.. What ever three-view shows another design prolific pencil Jim Clem might prettiest airplane Jim has ever designed must certainly simplest doubtful pretty pylons rudders make models fly better unless reinforced bit spruce along edges rectangular rudder might wear itself pleasing profile anyhow Full-size plans available $4 postpaid NFFS Plans Publications c/n Fred Terzian 4858 Moorpark Ave San Jose CA 95129 Terzian has weeded out some older plans has added some new ones addition Bubba Clem including Andres Lepps World Champ A2 Roger Gregorys Band wagon Mulvihill Humble Duster Wakefield Jack BrownsBrand X Wakefield Bob Whites Mini-Twin Fin P-30 others Send SASE Fred complete list plans other NFFS publications including . NFFS International Planboole Its out Weve mentioned before now real printed K 13U138A cLEni2 bj Jim Clem 234 sq NFFS Plans Ser v ie sq S1xsrs I 82 C 78Y 0Z6810IZ Inches IIii 5ht e 7I 2 lb sq,-j sq 5II Tiplet bound Included drawings photos tech data 109 models flown 1979 Free Flight World Championships Taft CA last October rather flown writing week ahead WC Also included addresses contributors case want pester details price $15 plus $2 book rate postage anywhere Americas Order NFFS address above Nats Unofficial Events Terry Rimert reports progress respect unofficial freeflight events held conjunction 1980 Nats venerable Illinois MAC will again sponsor rubber-power speed event National Free Flight Society offering prize dollar per mile-per-hour winner provided winning speed over 50 mph anyone interested enough rubberpower speedto send him stamped self-addressed enveloped Terry will send plans rubber speed models other goodies Official theme unofficial event Beat Matsuno St Louis McDonnell-Douglas Free Flight Club will sponsor Dick Korda Open Rubber event flight unlimited max using AMA-rule Mulvihill models club promises will no wind morning event hopes have perpetual trophy Terry will handle personally indoor outdoor helicopter ornithopter autogiro events hopes have separate Junior Senior Open Awards no entrance fee March 1980 51 NFFS International 1979 Planbook h loaded plans information 109 ships flown last World Champs Taft Splendid ids esrapemen runs ior 3U secunus croi dl rigrit addition modelers library converts engine timer ooIu ai K-Mart stores well other outlets Juniors Minneapolis Model Aero Club willwhims quirks design smalldoped lettered appropriately run Cargo eventexpenditure time before committing newdummy enginesthathadbeensquashedtweeked Nats unofficial FF events have deserved adesign hardware Ken Simpson pointed outand whittled submission nozzle better break have given themselves inthat article similar vein Paul Gilliamends old glue tubes past have suffered lack ofhad appeared May 1954 issue Model supports theory given coordination appears unofficialAirplane News Paul stated beenproblem smidgin encouragement model Unofficial Events Coordinator Terry Rimmertdoing model-of-model trick since 1946 Andbuilders will somehow manage carry well way fixing club hasin 1954 Jose Tellez other members ofsolution ridiculous extreme have unofficial event up its collective sleeve bestthe San Valeers Model Club built miniaturesball doing Witness quarter-scale RC contact Terry 367 Orange Avenue Baldwinof Sandy Hogan Fubar Civy Boy Zekes FL 32234Zipper others flight character-Design/Construction Tips super-craftsman isticsofthesetiny7- to9-inchmodelsduplicatedcan manage get perfect wrinkle-free coverModels Models Re- Visite& Decem-the characteristics prototypes rather welLingjob just about model some model column described smalL simplifiedBut San Valeer lads did flair fundesign features likely result models models could used check Out theas much science models color-smooth covering others hands 52 Model Aviation Left I nree strucTural mesnoas maun pues right showing affects covering Note will stick tissue unsightly manner flat cross pieces Miaaie cunirig ewdY ach longerons problem eliminated tissue largely unsupported Bottom C ngular pieces also eliminate problem added advantage supporting tissue station mill-run modeler limited skill time both tell whether model framework will inher ently tend produce wrinkle-free covering have learn think like piece covering tissueor whatever material use As scan outlines structure supposed stick nearby members might possibly stick have ask yourself Hey am going stick thing maybe yes maybe no proposition youll invariably end up so-so covering job Heavy stiff structures lot easier cover smoothly flimsy ones heavy stiff structures luxury can seldom afford free flight So either learn tolerate few crows-foot wrinkles corners forexample learn minimize problem proper design tissue must ask itself member bows bit tug ifthis bit balsa crushes teeny bit will tend make wrinkle typical example problem stick stick ctangular frame fuselage stringers such used scale old-timer rubber-power models stringer holds tissue away cross members almost everywhere near longerons tissue must decide whether going stick cross member So ends up sticking part cross member bloopy covering job results three solutions Fill region between stringer cross member longeron triangle balsa tissue must stick 2 cut away part cross member tissue cant stick add corner reinforcements necessary 3 learn love bloopy covering jobs Whether bowing structural member leading edge say under tension ofthe tissue will result wrinkles depends deflection member width tissue involved smaller deflections better wider tissue better ratio counts typical place crows-foot wrinkles occur joint between trailing edge rib As approaches joint width tissue involved approaches zero slightest crushing trailing edge results crows feet solution notch trailing edge put triangular braces joints spread out load reduce crushing tip square-ended wing crowsfoot wrinkle problem particularly severe since trailing leading edges tip rib can bow solutions triangular gussets braces diagonally across corner heavily reinforced tip ribs perhaps selection another model has rounded tip sides fuselage come together rear usually have aproblern width tissue involved vanishingly small slightest bowing longerons results wrinkles Usually stab covers such wrinkles top seldom see ones bottom solving problem might fuss worth top bottom longerons come together wrinkles sides will painfully obvious solution Add cross members uprights filling region between longerons sheet balsa tail end solutions require extra care involve extra work Whether effort worth personal choice also usually involve additional wooa would seem say have choice between model looks good light enough fly welL Most solutions involve beefing up joints structures weakest anyhow So beefing up joints can use smaller wood sizes lighter grades wood general structure long run win weight/strength battle paying attention joints other fringe benefits sometimes Notching trailing edge adding gussets rib-to-trailing-edge joints helps prevent trailing edge turning up down time can drastically affect trim performance Cheapie Engine Timer June 1979 issue mentioned wind-up motor used various toys manufactured Tomy notably MiniBath TubbiesWe told motor used actuate auto-surfaces Outdoor HLG suggested might serve base frame inexpensive engine timer gener ously offered $5 first guy came up Five bucks what management pays contributions migrate column anyhow Well $5 goes Bill Gieseking Bill picked up number wind-up toys local toy emporium including some made Tomy also Aviva Enterprizes likeness sometimes- aviator friend Snoopy turned out motors substan tially same except Snoopy motor internal escapement much like Tatone timers made run much slowly motor runs about 25 sec before power sags off appreciably winding knob shaft extends out opposite side motor knob itself turns around revolution 4 sec notched disk type mechanism like used Tatone timer wont work motor run 10 15 sec scroll-type release such used Seelig timer will Continued page 115 March 1980 53 Tissue sticks part bra urn uui dli UT IL rruper uesign ana construction 0 tramework answer improved covering techniques Soft trailing edges lead crowfoot wrinkles Notch trailing edge ribs add small triangular gussets butt against rib trailing edge FF Duration/Meuser continued page 53 Seelig scroll would rather expensive duplicate essence simply screw thread rather use little wire flipper used both Seelig Tatone Bill used idea got awhile back Hardy Brodersen Attach string fuel cut-off flood-off mechanism choice Tie loop end place loop over timer scroll timer unwinds loop simply screws itself off end scroll Bill made scroll simply wrapping spiral soft wire around music-wire mandrel slipping over piece aluminum tubing somehow attached timer shaft can manufacture own aluminum tubing almost D OD gluing appropriate sizes oftelescop ing aluminum tubing together cyanoacrylate epoxy glue gives clue Well after hearing Bill ol Meuser goes hippety-hoppmg off local toy emporium course isnt wind-up walking Snoopy toy within miles alas hanging hook bubbly-packaged elegance series Tomy items called Flip Floppers come various forms including might have inspired embryo airplane airplanes little mammalian reproductive habits inside wee beastie motor like described ol Gieseking intemal escapement alL Bill conjectured basic motor has lots extra holes case variety applications made some Hong Kong manufacturer peddles various toy manufacturers incorporation pro ducts perhaps products under variety trade names come out different back doors same factory Whatever appears motors might come toy creeps crawls hops flipflops slithers rolls Point Point B best keep eyes open Bonuses Boni Included Flip-Flops very soft tension spring might find use product review product review product review Mustang 0 $3995 Jemco 1305 Foothill Dr Vista CA 92083 last easy build Mustang forfun scale Jemco claims model will fly slow Piper Cub further claim model will land like trainer cha racteristics Mustang should very popular like all-balsa models meets test Excellent building instructions illustrations make attractive package model features JEM LOC fuselage construction rapid accurate building Now just imagine good model would look combat WW II colors little detailing Looks like fun product review product review product review CHOICE READING FOR AVIATION ENTHUSIASTS Introducing choice selection excellent Aeronautical books published Great Britain hardbound attractive dust jackets prices POSTPAID CURTISS AIRCRAFT 1907- 1947 Peter Bowers Pioneer work Hamk Falcon families Biplanes P-36 P-40 604 pp 567 illust 00 McDONNELL DOUGLAS AIRCRAFT SINCE 1920 Rene Francillon History areat firms Phantom Banshee Cloudster Dc-i DC-3 696 pp 545 lIlus $4000 BRITISH AVIATION THE GREAT WAR AND ARMISTICE 1915 Harald Penrose War Years Sopwith Pup Camel Bristol Fighter Handley Page 0/100 Bomber 622 pp 510 Illustrations$1B00 BRITISH AVIATION THE ADVENTURING YEARS 1920 Harald Penrow RAP struggles become effective growth Civil Aviation 734 633 Illustrations$2400 THE BRITISH FIGHTER SINCE 1912 Peter Lewis Aviation history earliest beginnings including unfinished proiects 404 pp 304 Is. $1500 GERMAN AIRCRAFT OP THE 2nd WORLD WAR Smith & Kay Fixed rotating-wing aircraft 1939-45 Luftwaffe period 760 pp 545 Photon 127 Drawings $2900 HANDLEY PAGE AIRCRAFT SINCE 1907 C Bernes Asthoriative history through 2nd WW Hampden Halifax Dart-Herald bombers 666 pp 450 Photos 86 Drawings $2800 DE HAVILLAND AIRCRAFT SINCE 1909 Jackson Revised Edition Complete Reference work Primitive 1909 Biplane OH iet 1962 490 pp 470 Photos 97 Drawings $2500 ARMSTRONG WH ITWORTH AIRCRAFT SINCE 1913 Oliver Tapper Siskin Fighter Whitley Bomber AWn civil Transport fully recorded 398 pp 385 Photos 48 Drawings $2000 FAIREY AIRCRAFT SINCE 1915 H Taylor Foc Bomber FCI Transport Long-Range Mono plane Fairey Delta Two Detailed 472 pp 418 Photos 50 Drawings $2000 GLOSTER AIRCRAFT SINCE 1917 Derek James Construction Development Operational Hissory Prototypes through Meteor 456 pp 478 Photos 94 Drawings $2000 BRISTOL AIRCRAFT SINCE 1910 C Barnes Revised edition provides features construction operational use 100 Bristol types plus unbuilt proiects 416 pp 319 Photos 51 Drawings.$2000 MILES AIRCRAFT SINCE 1925 Don Brown design prolected built described illus tratad since Asro 504K 430 pp 402 Photos 78 Drawings$ 2000 POLISH AIRCRAFT 1B93 1939 Jerzy Cynk History Structural description type prior WW 11 Most complete 782 pp 543 Photos 43 Drawings$2200 THE BRITISH BOMBER SINCE 1914 Peter Lewis Sixty Years 560 Types recorded 420 pp. 311 Photos 103 Drawings $1500 Order Today Prompt Shipment ouarterman Publications Inc BOOKSELLERS 5 South Union Street Lawrence MA 01843 BCO BO BOBCO parts factory parts replaCement parts manufactured BOBCO Call Write Complete Information Entire Line DEALER PROGRAMS ENCOURAGED CA residents add 6% sales tax add $150 postage & handling send check mo1cy order BLADES JET RANGER$1295 ALLOUETE$1295 COMMANDER$895 HELIBOY$895 HELIBABY$495 REVOLUTION 1$495 ROTOR SHAFTS HELIBABY$495 COMMANDER$995 REVOLUTION 1$495 FAN SHROUDS 40 60 size$795 Have AMERICAN KAVAN Helicoptors parts DISCOUNT PRICES 10% Discount 5 Sets Bobco 2504 C -1 S Santa Fe Avenue Vista CA 92083 Tel 714 727-4130 March 1980 115
Edition: Model Aviation - 1980/03
Page Numbers: 51, 52, 53, 115
DURATION Bob Meuser BUBBA CLEM Whatever means Maybe Nakashima put cartoons good names used up Flapped Cream Peas Punch Toothpicks.. What ever three-view shows another design prolific pencil Jim Clem might prettiest airplane Jim has ever designed must certainly simplest doubtful pretty pylons rudders make models fly better unless reinforced bit spruce along edges rectangular rudder might wear itself pleasing profile anyhow Full-size plans available $4 postpaid NFFS Plans Publications c/n Fred Terzian 4858 Moorpark Ave San Jose CA 95129 Terzian has weeded out some older plans has added some new ones addition Bubba Clem including Andres Lepps World Champ A2 Roger Gregorys Band wagon Mulvihill Humble Duster Wakefield Jack BrownsBrand X Wakefield Bob Whites Mini-Twin Fin P-30 others Send SASE Fred complete list plans other NFFS publications including . NFFS International Planboole Its out Weve mentioned before now real printed K 13U138A cLEni2 bj Jim Clem 234 sq NFFS Plans Ser v ie sq S1xsrs I 82 C 78Y 0Z6810IZ Inches IIii 5ht e 7I 2 lb sq,-j sq 5II Tiplet bound Included drawings photos tech data 109 models flown 1979 Free Flight World Championships Taft CA last October rather flown writing week ahead WC Also included addresses contributors case want pester details price $15 plus $2 book rate postage anywhere Americas Order NFFS address above Nats Unofficial Events Terry Rimert reports progress respect unofficial freeflight events held conjunction 1980 Nats venerable Illinois MAC will again sponsor rubber-power speed event National Free Flight Society offering prize dollar per mile-per-hour winner provided winning speed over 50 mph anyone interested enough rubberpower speedto send him stamped self-addressed enveloped Terry will send plans rubber speed models other goodies Official theme unofficial event Beat Matsuno St Louis McDonnell-Douglas Free Flight Club will sponsor Dick Korda Open Rubber event flight unlimited max using AMA-rule Mulvihill models club promises will no wind morning event hopes have perpetual trophy Terry will handle personally indoor outdoor helicopter ornithopter autogiro events hopes have separate Junior Senior Open Awards no entrance fee March 1980 51 NFFS International 1979 Planbook h loaded plans information 109 ships flown last World Champs Taft Splendid ids esrapemen runs ior 3U secunus croi dl rigrit addition modelers library converts engine timer ooIu ai K-Mart stores well other outlets Juniors Minneapolis Model Aero Club willwhims quirks design smalldoped lettered appropriately run Cargo eventexpenditure time before committing newdummy enginesthathadbeensquashedtweeked Nats unofficial FF events have deserved adesign hardware Ken Simpson pointed outand whittled submission nozzle better break have given themselves inthat article similar vein Paul Gilliamends old glue tubes past have suffered lack ofhad appeared May 1954 issue Model supports theory given coordination appears unofficialAirplane News Paul stated beenproblem smidgin encouragement model Unofficial Events Coordinator Terry Rimmertdoing model-of-model trick since 1946 Andbuilders will somehow manage carry well way fixing club hasin 1954 Jose Tellez other members ofsolution ridiculous extreme have unofficial event up its collective sleeve bestthe San Valeers Model Club built miniaturesball doing Witness quarter-scale RC contact Terry 367 Orange Avenue Baldwinof Sandy Hogan Fubar Civy Boy Zekes FL 32234Zipper others flight character-Design/Construction Tips super-craftsman isticsofthesetiny7- to9-inchmodelsduplicatedcan manage get perfect wrinkle-free coverModels Models Re- Visite& Decem-the characteristics prototypes rather welLingjob just about model some model column described smalL simplifiedBut San Valeer lads did flair fundesign features likely result models models could used check Out theas much science models color-smooth covering others hands 52 Model Aviation Left I nree strucTural mesnoas maun pues right showing affects covering Note will stick tissue unsightly manner flat cross pieces Miaaie cunirig ewdY ach longerons problem eliminated tissue largely unsupported Bottom C ngular pieces also eliminate problem added advantage supporting tissue station mill-run modeler limited skill time both tell whether model framework will inher ently tend produce wrinkle-free covering have learn think like piece covering tissueor whatever material use As scan outlines structure supposed stick nearby members might possibly stick have ask yourself Hey am going stick thing maybe yes maybe no proposition youll invariably end up so-so covering job Heavy stiff structures lot easier cover smoothly flimsy ones heavy stiff structures luxury can seldom afford free flight So either learn tolerate few crows-foot wrinkles corners forexample learn minimize problem proper design tissue must ask itself member bows bit tug ifthis bit balsa crushes teeny bit will tend make wrinkle typical example problem stick stick ctangular frame fuselage stringers such used scale old-timer rubber-power models stringer holds tissue away cross members almost everywhere near longerons tissue must decide whether going stick cross member So ends up sticking part cross member bloopy covering job results three solutions Fill region between stringer cross member longeron triangle balsa tissue must stick 2 cut away part cross member tissue cant stick add corner reinforcements necessary 3 learn love bloopy covering jobs Whether bowing structural member leading edge say under tension ofthe tissue will result wrinkles depends deflection member width tissue involved smaller deflections better wider tissue better ratio counts typical place crows-foot wrinkles occur joint between trailing edge rib As approaches joint width tissue involved approaches zero slightest crushing trailing edge results crows feet solution notch trailing edge put triangular braces joints spread out load reduce crushing tip square-ended wing crowsfoot wrinkle problem particularly severe since trailing leading edges tip rib can bow solutions triangular gussets braces diagonally across corner heavily reinforced tip ribs perhaps selection another model has rounded tip sides fuselage come together rear usually have aproblern width tissue involved vanishingly small slightest bowing longerons results wrinkles Usually stab covers such wrinkles top seldom see ones bottom solving problem might fuss worth top bottom longerons come together wrinkles sides will painfully obvious solution Add cross members uprights filling region between longerons sheet balsa tail end solutions require extra care involve extra work Whether effort worth personal choice also usually involve additional wooa would seem say have choice between model looks good light enough fly welL Most solutions involve beefing up joints structures weakest anyhow So beefing up joints can use smaller wood sizes lighter grades wood general structure long run win weight/strength battle paying attention joints other fringe benefits sometimes Notching trailing edge adding gussets rib-to-trailing-edge joints helps prevent trailing edge turning up down time can drastically affect trim performance Cheapie Engine Timer June 1979 issue mentioned wind-up motor used various toys manufactured Tomy notably MiniBath TubbiesWe told motor used actuate auto-surfaces Outdoor HLG suggested might serve base frame inexpensive engine timer gener ously offered $5 first guy came up Five bucks what management pays contributions migrate column anyhow Well $5 goes Bill Gieseking Bill picked up number wind-up toys local toy emporium including some made Tomy also Aviva Enterprizes likeness sometimes- aviator friend Snoopy turned out motors substan tially same except Snoopy motor internal escapement much like Tatone timers made run much slowly motor runs about 25 sec before power sags off appreciably winding knob shaft extends out opposite side motor knob itself turns around revolution 4 sec notched disk type mechanism like used Tatone timer wont work motor run 10 15 sec scroll-type release such used Seelig timer will Continued page 115 March 1980 53 Tissue sticks part bra urn uui dli UT IL rruper uesign ana construction 0 tramework answer improved covering techniques Soft trailing edges lead crowfoot wrinkles Notch trailing edge ribs add small triangular gussets butt against rib trailing edge FF Duration/Meuser continued page 53 Seelig scroll would rather expensive duplicate essence simply screw thread rather use little wire flipper used both Seelig Tatone Bill used idea got awhile back Hardy Brodersen Attach string fuel cut-off flood-off mechanism choice Tie loop end place loop over timer scroll timer unwinds loop simply screws itself off end scroll Bill made scroll simply wrapping spiral soft wire around music-wire mandrel slipping over piece aluminum tubing somehow attached timer shaft can manufacture own aluminum tubing almost D OD gluing appropriate sizes oftelescop ing aluminum tubing together cyanoacrylate epoxy glue gives clue Well after hearing Bill ol Meuser goes hippety-hoppmg off local toy emporium course isnt wind-up walking Snoopy toy within miles alas hanging hook bubbly-packaged elegance series Tomy items called Flip Floppers come various forms including might have inspired embryo airplane airplanes little mammalian reproductive habits inside wee beastie motor like described ol Gieseking intemal escapement alL Bill conjectured basic motor has lots extra holes case variety applications made some Hong Kong manufacturer peddles various toy manufacturers incorporation pro ducts perhaps products under variety trade names come out different back doors same factory Whatever appears motors might come toy creeps crawls hops flipflops slithers rolls Point Point B best keep eyes open Bonuses Boni Included Flip-Flops very soft tension spring might find use product review product review product review Mustang 0 $3995 Jemco 1305 Foothill Dr Vista CA 92083 last easy build Mustang forfun scale Jemco claims model will fly slow Piper Cub further claim model will land like trainer cha racteristics Mustang should very popular like all-balsa models meets test Excellent building instructions illustrations make attractive package model features JEM LOC fuselage construction rapid accurate building Now just imagine good model would look combat WW II colors little detailing Looks like fun product review product review product review CHOICE READING FOR AVIATION ENTHUSIASTS Introducing choice selection excellent Aeronautical books published Great Britain hardbound attractive dust jackets prices POSTPAID CURTISS AIRCRAFT 1907- 1947 Peter Bowers Pioneer work Hamk Falcon families Biplanes P-36 P-40 604 pp 567 illust 00 McDONNELL DOUGLAS AIRCRAFT SINCE 1920 Rene Francillon History areat firms Phantom Banshee Cloudster Dc-i DC-3 696 pp 545 lIlus $4000 BRITISH AVIATION THE GREAT WAR AND ARMISTICE 1915 Harald Penrose War Years Sopwith Pup Camel Bristol Fighter Handley Page 0/100 Bomber 622 pp 510 Illustrations$1B00 BRITISH AVIATION THE ADVENTURING YEARS 1920 Harald Penrow RAP struggles become effective growth Civil Aviation 734 633 Illustrations$2400 THE BRITISH FIGHTER SINCE 1912 Peter Lewis Aviation history earliest beginnings including unfinished proiects 404 pp 304 Is. $1500 GERMAN AIRCRAFT OP THE 2nd WORLD WAR Smith & Kay Fixed rotating-wing aircraft 1939-45 Luftwaffe period 760 pp 545 Photon 127 Drawings $2900 HANDLEY PAGE AIRCRAFT SINCE 1907 C Bernes Asthoriative history through 2nd WW Hampden Halifax Dart-Herald bombers 666 pp 450 Photos 86 Drawings $2800 DE HAVILLAND AIRCRAFT SINCE 1909 Jackson Revised Edition Complete Reference work Primitive 1909 Biplane OH iet 1962 490 pp 470 Photos 97 Drawings $2500 ARMSTRONG WH ITWORTH AIRCRAFT SINCE 1913 Oliver Tapper Siskin Fighter Whitley Bomber AWn civil Transport fully recorded 398 pp 385 Photos 48 Drawings $2000 FAIREY AIRCRAFT SINCE 1915 H Taylor Foc Bomber FCI Transport Long-Range Mono plane Fairey Delta Two Detailed 472 pp 418 Photos 50 Drawings $2000 GLOSTER AIRCRAFT SINCE 1917 Derek James Construction Development Operational Hissory Prototypes through Meteor 456 pp 478 Photos 94 Drawings $2000 BRISTOL AIRCRAFT SINCE 1910 C Barnes Revised edition provides features construction operational use 100 Bristol types plus unbuilt proiects 416 pp 319 Photos 51 Drawings.$2000 MILES AIRCRAFT SINCE 1925 Don Brown design prolected built described illus tratad since Asro 504K 430 pp 402 Photos 78 Drawings$ 2000 POLISH AIRCRAFT 1B93 1939 Jerzy Cynk History Structural description type prior WW 11 Most complete 782 pp 543 Photos 43 Drawings$2200 THE BRITISH BOMBER SINCE 1914 Peter Lewis Sixty Years 560 Types recorded 420 pp. 311 Photos 103 Drawings $1500 Order Today Prompt Shipment ouarterman Publications Inc BOOKSELLERS 5 South Union Street Lawrence MA 01843 BCO BO BOBCO parts factory parts replaCement parts manufactured BOBCO Call Write Complete Information Entire Line DEALER PROGRAMS ENCOURAGED CA residents add 6% sales tax add $150 postage & handling send check mo1cy order BLADES JET RANGER$1295 ALLOUETE$1295 COMMANDER$895 HELIBOY$895 HELIBABY$495 REVOLUTION 1$495 ROTOR SHAFTS HELIBABY$495 COMMANDER$995 REVOLUTION 1$495 FAN SHROUDS 40 60 size$795 Have AMERICAN KAVAN Helicoptors parts DISCOUNT PRICES 10% Discount 5 Sets Bobco 2504 C -1 S Santa Fe Avenue Vista CA 92083 Tel 714 727-4130 March 1980 115
Edition: Model Aviation - 1980/03
Page Numbers: 51, 52, 53, 115
DURATION Bob Meuser BUBBA CLEM Whatever means Maybe Nakashima put cartoons good names used up Flapped Cream Peas Punch Toothpicks.. What ever three-view shows another design prolific pencil Jim Clem might prettiest airplane Jim has ever designed must certainly simplest doubtful pretty pylons rudders make models fly better unless reinforced bit spruce along edges rectangular rudder might wear itself pleasing profile anyhow Full-size plans available $4 postpaid NFFS Plans Publications c/n Fred Terzian 4858 Moorpark Ave San Jose CA 95129 Terzian has weeded out some older plans has added some new ones addition Bubba Clem including Andres Lepps World Champ A2 Roger Gregorys Band wagon Mulvihill Humble Duster Wakefield Jack BrownsBrand X Wakefield Bob Whites Mini-Twin Fin P-30 others Send SASE Fred complete list plans other NFFS publications including . NFFS International Planboole Its out Weve mentioned before now real printed K 13U138A cLEni2 bj Jim Clem 234 sq NFFS Plans Ser v ie sq S1xsrs I 82 C 78Y 0Z6810IZ Inches IIii 5ht e 7I 2 lb sq,-j sq 5II Tiplet bound Included drawings photos tech data 109 models flown 1979 Free Flight World Championships Taft CA last October rather flown writing week ahead WC Also included addresses contributors case want pester details price $15 plus $2 book rate postage anywhere Americas Order NFFS address above Nats Unofficial Events Terry Rimert reports progress respect unofficial freeflight events held conjunction 1980 Nats venerable Illinois MAC will again sponsor rubber-power speed event National Free Flight Society offering prize dollar per mile-per-hour winner provided winning speed over 50 mph anyone interested enough rubberpower speedto send him stamped self-addressed enveloped Terry will send plans rubber speed models other goodies Official theme unofficial event Beat Matsuno St Louis McDonnell-Douglas Free Flight Club will sponsor Dick Korda Open Rubber event flight unlimited max using AMA-rule Mulvihill models club promises will no wind morning event hopes have perpetual trophy Terry will handle personally indoor outdoor helicopter ornithopter autogiro events hopes have separate Junior Senior Open Awards no entrance fee March 1980 51 NFFS International 1979 Planbook h loaded plans information 109 ships flown last World Champs Taft Splendid ids esrapemen runs ior 3U secunus croi dl rigrit addition modelers library converts engine timer ooIu ai K-Mart stores well other outlets Juniors Minneapolis Model Aero Club willwhims quirks design smalldoped lettered appropriately run Cargo eventexpenditure time before committing newdummy enginesthathadbeensquashedtweeked Nats unofficial FF events have deserved adesign hardware Ken Simpson pointed outand whittled submission nozzle better break have given themselves inthat article similar vein Paul Gilliamends old glue tubes past have suffered lack ofhad appeared May 1954 issue Model supports theory given coordination appears unofficialAirplane News Paul stated beenproblem smidgin encouragement model Unofficial Events Coordinator Terry Rimmertdoing model-of-model trick since 1946 Andbuilders will somehow manage carry well way fixing club hasin 1954 Jose Tellez other members ofsolution ridiculous extreme have unofficial event up its collective sleeve bestthe San Valeers Model Club built miniaturesball doing Witness quarter-scale RC contact Terry 367 Orange Avenue Baldwinof Sandy Hogan Fubar Civy Boy Zekes FL 32234Zipper others flight character-Design/Construction Tips super-craftsman isticsofthesetiny7- to9-inchmodelsduplicatedcan manage get perfect wrinkle-free coverModels Models Re- Visite& Decem-the characteristics prototypes rather welLingjob just about model some model column described smalL simplifiedBut San Valeer lads did flair fundesign features likely result models models could used check Out theas much science models color-smooth covering others hands 52 Model Aviation Left I nree strucTural mesnoas maun pues right showing affects covering Note will stick tissue unsightly manner flat cross pieces Miaaie cunirig ewdY ach longerons problem eliminated tissue largely unsupported Bottom C ngular pieces also eliminate problem added advantage supporting tissue station mill-run modeler limited skill time both tell whether model framework will inher ently tend produce wrinkle-free covering have learn think like piece covering tissueor whatever material use As scan outlines structure supposed stick nearby members might possibly stick have ask yourself Hey am going stick thing maybe yes maybe no proposition youll invariably end up so-so covering job Heavy stiff structures lot easier cover smoothly flimsy ones heavy stiff structures luxury can seldom afford free flight So either learn tolerate few crows-foot wrinkles corners forexample learn minimize problem proper design tissue must ask itself member bows bit tug ifthis bit balsa crushes teeny bit will tend make wrinkle typical example problem stick stick ctangular frame fuselage stringers such used scale old-timer rubber-power models stringer holds tissue away cross members almost everywhere near longerons tissue must decide whether going stick cross member So ends up sticking part cross member bloopy covering job results three solutions Fill region between stringer cross member longeron triangle balsa tissue must stick 2 cut away part cross member tissue cant stick add corner reinforcements necessary 3 learn love bloopy covering jobs Whether bowing structural member leading edge say under tension ofthe tissue will result wrinkles depends deflection member width tissue involved smaller deflections better wider tissue better ratio counts typical place crows-foot wrinkles occur joint between trailing edge rib As approaches joint width tissue involved approaches zero slightest crushing trailing edge results crows feet solution notch trailing edge put triangular braces joints spread out load reduce crushing tip square-ended wing crowsfoot wrinkle problem particularly severe since trailing leading edges tip rib can bow solutions triangular gussets braces diagonally across corner heavily reinforced tip ribs perhaps selection another model has rounded tip sides fuselage come together rear usually have aproblern width tissue involved vanishingly small slightest bowing longerons results wrinkles Usually stab covers such wrinkles top seldom see ones bottom solving problem might fuss worth top bottom longerons come together wrinkles sides will painfully obvious solution Add cross members uprights filling region between longerons sheet balsa tail end solutions require extra care involve extra work Whether effort worth personal choice also usually involve additional wooa would seem say have choice between model looks good light enough fly welL Most solutions involve beefing up joints structures weakest anyhow So beefing up joints can use smaller wood sizes lighter grades wood general structure long run win weight/strength battle paying attention joints other fringe benefits sometimes Notching trailing edge adding gussets rib-to-trailing-edge joints helps prevent trailing edge turning up down time can drastically affect trim performance Cheapie Engine Timer June 1979 issue mentioned wind-up motor used various toys manufactured Tomy notably MiniBath TubbiesWe told motor used actuate auto-surfaces Outdoor HLG suggested might serve base frame inexpensive engine timer gener ously offered $5 first guy came up Five bucks what management pays contributions migrate column anyhow Well $5 goes Bill Gieseking Bill picked up number wind-up toys local toy emporium including some made Tomy also Aviva Enterprizes likeness sometimes- aviator friend Snoopy turned out motors substan tially same except Snoopy motor internal escapement much like Tatone timers made run much slowly motor runs about 25 sec before power sags off appreciably winding knob shaft extends out opposite side motor knob itself turns around revolution 4 sec notched disk type mechanism like used Tatone timer wont work motor run 10 15 sec scroll-type release such used Seelig timer will Continued page 115 March 1980 53 Tissue sticks part bra urn uui dli UT IL rruper uesign ana construction 0 tramework answer improved covering techniques Soft trailing edges lead crowfoot wrinkles Notch trailing edge ribs add small triangular gussets butt against rib trailing edge FF Duration/Meuser continued page 53 Seelig scroll would rather expensive duplicate essence simply screw thread rather use little wire flipper used both Seelig Tatone Bill used idea got awhile back Hardy Brodersen Attach string fuel cut-off flood-off mechanism choice Tie loop end place loop over timer scroll timer unwinds loop simply screws itself off end scroll Bill made scroll simply wrapping spiral soft wire around music-wire mandrel slipping over piece aluminum tubing somehow attached timer shaft can manufacture own aluminum tubing almost D OD gluing appropriate sizes oftelescop ing aluminum tubing together cyanoacrylate epoxy glue gives clue Well after hearing Bill ol Meuser goes hippety-hoppmg off local toy emporium course isnt wind-up walking Snoopy toy within miles alas hanging hook bubbly-packaged elegance series Tomy items called Flip Floppers come various forms including might have inspired embryo airplane airplanes little mammalian reproductive habits inside wee beastie motor like described ol Gieseking intemal escapement alL Bill conjectured basic motor has lots extra holes case variety applications made some Hong Kong manufacturer peddles various toy manufacturers incorporation pro ducts perhaps products under variety trade names come out different back doors same factory Whatever appears motors might come toy creeps crawls hops flipflops slithers rolls Point Point B best keep eyes open Bonuses Boni Included Flip-Flops very soft tension spring might find use product review product review product review Mustang 0 $3995 Jemco 1305 Foothill Dr Vista CA 92083 last easy build Mustang forfun scale Jemco claims model will fly slow Piper Cub further claim model will land like trainer cha racteristics Mustang should very popular like all-balsa models meets test Excellent building instructions illustrations make attractive package model features JEM LOC fuselage construction rapid accurate building Now just imagine good model would look combat WW II colors little detailing Looks like fun product review product review product review CHOICE READING FOR AVIATION ENTHUSIASTS Introducing choice selection excellent Aeronautical books published Great Britain hardbound attractive dust jackets prices POSTPAID CURTISS AIRCRAFT 1907- 1947 Peter Bowers Pioneer work Hamk Falcon families Biplanes P-36 P-40 604 pp 567 illust 00 McDONNELL DOUGLAS AIRCRAFT SINCE 1920 Rene Francillon History areat firms Phantom Banshee Cloudster Dc-i DC-3 696 pp 545 lIlus $4000 BRITISH AVIATION THE GREAT WAR AND ARMISTICE 1915 Harald Penrose War Years Sopwith Pup Camel Bristol Fighter Handley Page 0/100 Bomber 622 pp 510 Illustrations$1B00 BRITISH AVIATION THE ADVENTURING YEARS 1920 Harald Penrow RAP struggles become effective growth Civil Aviation 734 633 Illustrations$2400 THE BRITISH FIGHTER SINCE 1912 Peter Lewis Aviation history earliest beginnings including unfinished proiects 404 pp 304 Is. $1500 GERMAN AIRCRAFT OP THE 2nd WORLD WAR Smith & Kay Fixed rotating-wing aircraft 1939-45 Luftwaffe period 760 pp 545 Photon 127 Drawings $2900 HANDLEY PAGE AIRCRAFT SINCE 1907 C Bernes Asthoriative history through 2nd WW Hampden Halifax Dart-Herald bombers 666 pp 450 Photos 86 Drawings $2800 DE HAVILLAND AIRCRAFT SINCE 1909 Jackson Revised Edition Complete Reference work Primitive 1909 Biplane OH iet 1962 490 pp 470 Photos 97 Drawings $2500 ARMSTRONG WH ITWORTH AIRCRAFT SINCE 1913 Oliver Tapper Siskin Fighter Whitley Bomber AWn civil Transport fully recorded 398 pp 385 Photos 48 Drawings $2000 FAIREY AIRCRAFT SINCE 1915 H Taylor Foc Bomber FCI Transport Long-Range Mono plane Fairey Delta Two Detailed 472 pp 418 Photos 50 Drawings $2000 GLOSTER AIRCRAFT SINCE 1917 Derek James Construction Development Operational Hissory Prototypes through Meteor 456 pp 478 Photos 94 Drawings $2000 BRISTOL AIRCRAFT SINCE 1910 C Barnes Revised edition provides features construction operational use 100 Bristol types plus unbuilt proiects 416 pp 319 Photos 51 Drawings.$2000 MILES AIRCRAFT SINCE 1925 Don Brown design prolected built described illus tratad since Asro 504K 430 pp 402 Photos 78 Drawings$ 2000 POLISH AIRCRAFT 1B93 1939 Jerzy Cynk History Structural description type prior WW 11 Most complete 782 pp 543 Photos 43 Drawings$2200 THE BRITISH BOMBER SINCE 1914 Peter Lewis Sixty Years 560 Types recorded 420 pp. 311 Photos 103 Drawings $1500 Order Today Prompt Shipment ouarterman Publications Inc BOOKSELLERS 5 South Union Street Lawrence MA 01843 BCO BO BOBCO parts factory parts replaCement parts manufactured BOBCO Call Write Complete Information Entire Line DEALER PROGRAMS ENCOURAGED CA residents add 6% sales tax add $150 postage & handling send check mo1cy order BLADES JET RANGER$1295 ALLOUETE$1295 COMMANDER$895 HELIBOY$895 HELIBABY$495 REVOLUTION 1$495 ROTOR SHAFTS HELIBABY$495 COMMANDER$995 REVOLUTION 1$495 FAN SHROUDS 40 60 size$795 Have AMERICAN KAVAN Helicoptors parts DISCOUNT PRICES 10% Discount 5 Sets Bobco 2504 C -1 S Santa Fe Avenue Vista CA 92083 Tel 714 727-4130 March 1980 115
Edition: Model Aviation - 1980/03
Page Numbers: 51, 52, 53, 115
DURATION Bob Meuser BUBBA CLEM Whatever means Maybe Nakashima put cartoons good names used up Flapped Cream Peas Punch Toothpicks.. What ever three-view shows another design prolific pencil Jim Clem might prettiest airplane Jim has ever designed must certainly simplest doubtful pretty pylons rudders make models fly better unless reinforced bit spruce along edges rectangular rudder might wear itself pleasing profile anyhow Full-size plans available $4 postpaid NFFS Plans Publications c/n Fred Terzian 4858 Moorpark Ave San Jose CA 95129 Terzian has weeded out some older plans has added some new ones addition Bubba Clem including Andres Lepps World Champ A2 Roger Gregorys Band wagon Mulvihill Humble Duster Wakefield Jack BrownsBrand X Wakefield Bob Whites Mini-Twin Fin P-30 others Send SASE Fred complete list plans other NFFS publications including . NFFS International Planboole Its out Weve mentioned before now real printed K 13U138A cLEni2 bj Jim Clem 234 sq NFFS Plans Ser v ie sq S1xsrs I 82 C 78Y 0Z6810IZ Inches IIii 5ht e 7I 2 lb sq,-j sq 5II Tiplet bound Included drawings photos tech data 109 models flown 1979 Free Flight World Championships Taft CA last October rather flown writing week ahead WC Also included addresses contributors case want pester details price $15 plus $2 book rate postage anywhere Americas Order NFFS address above Nats Unofficial Events Terry Rimert reports progress respect unofficial freeflight events held conjunction 1980 Nats venerable Illinois MAC will again sponsor rubber-power speed event National Free Flight Society offering prize dollar per mile-per-hour winner provided winning speed over 50 mph anyone interested enough rubberpower speedto send him stamped self-addressed enveloped Terry will send plans rubber speed models other goodies Official theme unofficial event Beat Matsuno St Louis McDonnell-Douglas Free Flight Club will sponsor Dick Korda Open Rubber event flight unlimited max using AMA-rule Mulvihill models club promises will no wind morning event hopes have perpetual trophy Terry will handle personally indoor outdoor helicopter ornithopter autogiro events hopes have separate Junior Senior Open Awards no entrance fee March 1980 51 NFFS International 1979 Planbook h loaded plans information 109 ships flown last World Champs Taft Splendid ids esrapemen runs ior 3U secunus croi dl rigrit addition modelers library converts engine timer ooIu ai K-Mart stores well other outlets Juniors Minneapolis Model Aero Club willwhims quirks design smalldoped lettered appropriately run Cargo eventexpenditure time before committing newdummy enginesthathadbeensquashedtweeked Nats unofficial FF events have deserved adesign hardware Ken Simpson pointed outand whittled submission nozzle better break have given themselves inthat article similar vein Paul Gilliamends old glue tubes past have suffered lack ofhad appeared May 1954 issue Model supports theory given coordination appears unofficialAirplane News Paul stated beenproblem smidgin encouragement model Unofficial Events Coordinator Terry Rimmertdoing model-of-model trick since 1946 Andbuilders will somehow manage carry well way fixing club hasin 1954 Jose Tellez other members ofsolution ridiculous extreme have unofficial event up its collective sleeve bestthe San Valeers Model Club built miniaturesball doing Witness quarter-scale RC contact Terry 367 Orange Avenue Baldwinof Sandy Hogan Fubar Civy Boy Zekes FL 32234Zipper others flight character-Design/Construction Tips super-craftsman isticsofthesetiny7- to9-inchmodelsduplicatedcan manage get perfect wrinkle-free coverModels Models Re- Visite& Decem-the characteristics prototypes rather welLingjob just about model some model column described smalL simplifiedBut San Valeer lads did flair fundesign features likely result models models could used check Out theas much science models color-smooth covering others hands 52 Model Aviation Left I nree strucTural mesnoas maun pues right showing affects covering Note will stick tissue unsightly manner flat cross pieces Miaaie cunirig ewdY ach longerons problem eliminated tissue largely unsupported Bottom C ngular pieces also eliminate problem added advantage supporting tissue station mill-run modeler limited skill time both tell whether model framework will inher ently tend produce wrinkle-free covering have learn think like piece covering tissueor whatever material use As scan outlines structure supposed stick nearby members might possibly stick have ask yourself Hey am going stick thing maybe yes maybe no proposition youll invariably end up so-so covering job Heavy stiff structures lot easier cover smoothly flimsy ones heavy stiff structures luxury can seldom afford free flight So either learn tolerate few crows-foot wrinkles corners forexample learn minimize problem proper design tissue must ask itself member bows bit tug ifthis bit balsa crushes teeny bit will tend make wrinkle typical example problem stick stick ctangular frame fuselage stringers such used scale old-timer rubber-power models stringer holds tissue away cross members almost everywhere near longerons tissue must decide whether going stick cross member So ends up sticking part cross member bloopy covering job results three solutions Fill region between stringer cross member longeron triangle balsa tissue must stick 2 cut away part cross member tissue cant stick add corner reinforcements necessary 3 learn love bloopy covering jobs Whether bowing structural member leading edge say under tension ofthe tissue will result wrinkles depends deflection member width tissue involved smaller deflections better wider tissue better ratio counts typical place crows-foot wrinkles occur joint between trailing edge rib As approaches joint width tissue involved approaches zero slightest crushing trailing edge results crows feet solution notch trailing edge put triangular braces joints spread out load reduce crushing tip square-ended wing crowsfoot wrinkle problem particularly severe since trailing leading edges tip rib can bow solutions triangular gussets braces diagonally across corner heavily reinforced tip ribs perhaps selection another model has rounded tip sides fuselage come together rear usually have aproblern width tissue involved vanishingly small slightest bowing longerons results wrinkles Usually stab covers such wrinkles top seldom see ones bottom solving problem might fuss worth top bottom longerons come together wrinkles sides will painfully obvious solution Add cross members uprights filling region between longerons sheet balsa tail end solutions require extra care involve extra work Whether effort worth personal choice also usually involve additional wooa would seem say have choice between model looks good light enough fly welL Most solutions involve beefing up joints structures weakest anyhow So beefing up joints can use smaller wood sizes lighter grades wood general structure long run win weight/strength battle paying attention joints other fringe benefits sometimes Notching trailing edge adding gussets rib-to-trailing-edge joints helps prevent trailing edge turning up down time can drastically affect trim performance Cheapie Engine Timer June 1979 issue mentioned wind-up motor used various toys manufactured Tomy notably MiniBath TubbiesWe told motor used actuate auto-surfaces Outdoor HLG suggested might serve base frame inexpensive engine timer gener ously offered $5 first guy came up Five bucks what management pays contributions migrate column anyhow Well $5 goes Bill Gieseking Bill picked up number wind-up toys local toy emporium including some made Tomy also Aviva Enterprizes likeness sometimes- aviator friend Snoopy turned out motors substan tially same except Snoopy motor internal escapement much like Tatone timers made run much slowly motor runs about 25 sec before power sags off appreciably winding knob shaft extends out opposite side motor knob itself turns around revolution 4 sec notched disk type mechanism like used Tatone timer wont work motor run 10 15 sec scroll-type release such used Seelig timer will Continued page 115 March 1980 53 Tissue sticks part bra urn uui dli UT IL rruper uesign ana construction 0 tramework answer improved covering techniques Soft trailing edges lead crowfoot wrinkles Notch trailing edge ribs add small triangular gussets butt against rib trailing edge FF Duration/Meuser continued page 53 Seelig scroll would rather expensive duplicate essence simply screw thread rather use little wire flipper used both Seelig Tatone Bill used idea got awhile back Hardy Brodersen Attach string fuel cut-off flood-off mechanism choice Tie loop end place loop over timer scroll timer unwinds loop simply screws itself off end scroll Bill made scroll simply wrapping spiral soft wire around music-wire mandrel slipping over piece aluminum tubing somehow attached timer shaft can manufacture own aluminum tubing almost D OD gluing appropriate sizes oftelescop ing aluminum tubing together cyanoacrylate epoxy glue gives clue Well after hearing Bill ol Meuser goes hippety-hoppmg off local toy emporium course isnt wind-up walking Snoopy toy within miles alas hanging hook bubbly-packaged elegance series Tomy items called Flip Floppers come various forms including might have inspired embryo airplane airplanes little mammalian reproductive habits inside wee beastie motor like described ol Gieseking intemal escapement alL Bill conjectured basic motor has lots extra holes case variety applications made some Hong Kong manufacturer peddles various toy manufacturers incorporation pro ducts perhaps products under variety trade names come out different back doors same factory Whatever appears motors might come toy creeps crawls hops flipflops slithers rolls Point Point B best keep eyes open Bonuses Boni Included Flip-Flops very soft tension spring might find use product review product review product review Mustang 0 $3995 Jemco 1305 Foothill Dr Vista CA 92083 last easy build Mustang forfun scale Jemco claims model will fly slow Piper Cub further claim model will land like trainer cha racteristics Mustang should very popular like all-balsa models meets test Excellent building instructions illustrations make attractive package model features JEM LOC fuselage construction rapid accurate building Now just imagine good model would look combat WW II colors little detailing Looks like fun product review product review product review CHOICE READING FOR AVIATION ENTHUSIASTS Introducing choice selection excellent Aeronautical books published Great Britain hardbound attractive dust jackets prices POSTPAID CURTISS AIRCRAFT 1907- 1947 Peter Bowers Pioneer work Hamk Falcon families Biplanes P-36 P-40 604 pp 567 illust 00 McDONNELL DOUGLAS AIRCRAFT SINCE 1920 Rene Francillon History areat firms Phantom Banshee Cloudster Dc-i DC-3 696 pp 545 lIlus $4000 BRITISH AVIATION THE GREAT WAR AND ARMISTICE 1915 Harald Penrose War Years Sopwith Pup Camel Bristol Fighter Handley Page 0/100 Bomber 622 pp 510 Illustrations$1B00 BRITISH AVIATION THE ADVENTURING YEARS 1920 Harald Penrow RAP struggles become effective growth Civil Aviation 734 633 Illustrations$2400 THE BRITISH FIGHTER SINCE 1912 Peter Lewis Aviation history earliest beginnings including unfinished proiects 404 pp 304 Is. $1500 GERMAN AIRCRAFT OP THE 2nd WORLD WAR Smith & Kay Fixed rotating-wing aircraft 1939-45 Luftwaffe period 760 pp 545 Photon 127 Drawings $2900 HANDLEY PAGE AIRCRAFT SINCE 1907 C Bernes Asthoriative history through 2nd WW Hampden Halifax Dart-Herald bombers 666 pp 450 Photos 86 Drawings $2800 DE HAVILLAND AIRCRAFT SINCE 1909 Jackson Revised Edition Complete Reference work Primitive 1909 Biplane OH iet 1962 490 pp 470 Photos 97 Drawings $2500 ARMSTRONG WH ITWORTH AIRCRAFT SINCE 1913 Oliver Tapper Siskin Fighter Whitley Bomber AWn civil Transport fully recorded 398 pp 385 Photos 48 Drawings $2000 FAIREY AIRCRAFT SINCE 1915 H Taylor Foc Bomber FCI Transport Long-Range Mono plane Fairey Delta Two Detailed 472 pp 418 Photos 50 Drawings $2000 GLOSTER AIRCRAFT SINCE 1917 Derek James Construction Development Operational Hissory Prototypes through Meteor 456 pp 478 Photos 94 Drawings $2000 BRISTOL AIRCRAFT SINCE 1910 C Barnes Revised edition provides features construction operational use 100 Bristol types plus unbuilt proiects 416 pp 319 Photos 51 Drawings.$2000 MILES AIRCRAFT SINCE 1925 Don Brown design prolected built described illus tratad since Asro 504K 430 pp 402 Photos 78 Drawings$ 2000 POLISH AIRCRAFT 1B93 1939 Jerzy Cynk History Structural description type prior WW 11 Most complete 782 pp 543 Photos 43 Drawings$2200 THE BRITISH BOMBER SINCE 1914 Peter Lewis Sixty Years 560 Types recorded 420 pp. 311 Photos 103 Drawings $1500 Order Today Prompt Shipment ouarterman Publications Inc BOOKSELLERS 5 South Union Street Lawrence MA 01843 BCO BO BOBCO parts factory parts replaCement parts manufactured BOBCO Call Write Complete Information Entire Line DEALER PROGRAMS ENCOURAGED CA residents add 6% sales tax add $150 postage & handling send check mo1cy order BLADES JET RANGER$1295 ALLOUETE$1295 COMMANDER$895 HELIBOY$895 HELIBABY$495 REVOLUTION 1$495 ROTOR SHAFTS HELIBABY$495 COMMANDER$995 REVOLUTION 1$495 FAN SHROUDS 40 60 size$795 Have AMERICAN KAVAN Helicoptors parts DISCOUNT PRICES 10% Discount 5 Sets Bobco 2504 C -1 S Santa Fe Avenue Vista CA 92083 Tel 714 727-4130 March 1980 115