NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195
Edition: Model Aviation - 1980/05
Page Numbers: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 95, 98
NO OCR TEXT -TelU 1 4The best flying authors Gee Bees Senior Sportster considered Oranvilles finest machine ever built excellent flying landing characteristics itwas racerbut won races money better remembered machines Seen angle Senior Sportater makes beautiful picture Unlike later all-out racers does have stubby lc, kes people Slimmer has planformand plenty areaand moments qualify superb flying modal open cockpit door seems invite flier step take stick Senior Sportater first saw light tandem two-place aircraft designed model best-known Gee Bec-built aircraft famous R-1 R-2 R-1/ R-2 Super Sportsters couple friends built R-l plans did R1/R-2 Long Tail Racer known Again found remarkable Cnntest winner seasons flying added already large collection Gee Bee trophies Gee Bee aircraft favorite still first built Senior Sportster Model Y great pictures collected aircraft able design build much accurate model first decided new scale editor expressed interest having construction article -scale Model Y Sportster asked Bob Granville would like write background story Senior Sportster article felt story would interesting Bob received letter November 14 evening showed letter son Robert told him looking forward writing part article However Bob Granville right holding Henrys smaller version Y March 76 MAwith author Rhinebeck Granville assist article passed away Jay Duncan photo 12 Model Aviation scale propeller static displayand note manufacturers emblem bladeone would hard put say model real thing Above Even close up scale dummy Wasp engine hides big Webra gicase may seen right prop hub Like Hollywood set front realistic Wasp doesnt have much anything behind seen below next night got call Beverly Granville Bobs daughter-in-law telling Bob passed away earlier evening aviation world lost last ofthe famous Granville Brothers lost very dear friend Also readers missed Out 00 chance read about Senior Sportster words men built ship 1930 later years Bob Granville written articles various Gee Bee Editors Note Henrys smaller version Senior Sportster published March 1976 ModelAviation remains popular plan MA ever printed far excelled /i scaler beginning its flying life latter already has won firsts Non-Military Scale WRAMS Best Show Southern NJ Clubs Static Competition Grand Prize Winner Bealton VA tops Static andFlightpoints AMA District II RC Championships Radio failurespreventedsecondflights theRhinebeck Classic 4th place Bran dywine MD 2nd place Although wealth material compels usto run subject two issues complete plans given month Wings Finishing Detailing Flight will covered next month picture collection historic variants subject theirfamous pilots included thefinal installment aircraft four brothers built Bob process putting material together book would tell first time real story Gee Bees men built have promised Bobs family would finish project started will get writing book soon gather final facts am seeking will best tell story Senior Sportster best can using Bobs words articles Gee Bee possible Gee Bee Model Y Senior Sportster fabulous machine felt Granvilles best aircraft built stated flew landed beautifully won races won money other racers built though de signed race plane Lets go back few years find out Model Y Sportster came about ZantfordGranville stilloot 20butoldestofthe five New Hampshire-born brothers left home Madison opened garage Chevrolet dealership Arlington MA near Boston Tom joined him around 1920 later took over garage gave Zantford opportunity become mechanic Boston Airport Corp what now Logan Intemational took part pay flying time got private license Soon after quit big company started own aircraft repair business setting up portable repair shop built over chassis large truck could go site downed plane make necessary repairs business flourished eventually five brothers working together remember Bob telling ofjoining brothers 1928 being thrilled prospect making 50 cents hour Zantford offered him short time after Grannie known designed air plane would build built twoplace biplane about three months Grannie test flew May 2 1929 terrible stormy night shortly after midnight storm seemed let up little decided right Bob told disappearing murkey sky thought wouldnt see him again weather bad However Grannie somehow brought new biplane back jubilation among brothers craft success Grannie decided would go production-building airplanes needed place build money backing Grannie wrote letters various places trying interest someone venture Around first week ofjuly 1929 four Tait brothers Springfield MA took set up shop what previously dance hall edge Springfield Airport built number biplanes things best business 1929 1930 Grannie Bob Hall first engineer decided design build aircraft around Cirrus engine compete some prize money offered Cirrus company Cirrus Derby 5541-mile race started Detroit motor capitol world went far west Los Angeles back Detroit Grannie Hall designed ship built given designation Model X Sportster lowwing single-cockpit sport plane proved very beautiful flying craft Its big problem landing no shock absorbing gear depended new air wheel absorb thejolts landing took good pilot get iton ground bouncing like ajackrabbit little black-and-white sportster flown May 1980 13 simple cowl forming device first layer ply taped place glue dries I,orripleteo iuw nuwsng L brackets used attach firewall Cowl removed trom rorm ano aster may-up ano rough shaping Note filler applied smooth out irregularities ____NeTVM~T 5 FLYING WIRES TO SUIT SCALE DOWEL EXHAUST S1CKS 9 SERVO TRAYON CROSS RAILS RING COWL LAMINATED UP FROM 3/32 PLTVVOOD BASE WITH I/S BALSA BUILD UP WEBRA 91 SPEED ENGINE ON EDSON MOUNT DUMMY SCALE CYLINDERS VACU FORMED FRONT HALVES GLUED TO 1/16 PLYWOOD BACKS 1/4 TUBING OR DOWEL POSTS SUPPORT CYLINDER RING TO WALL WHICH THEN GLUE TO BACK OF RING FROM 1/8 PLYWOOD NOTCH OUT TO CLEAR ENGINE GARB TWO 1/2 BALSA SHEETS SHAPED TO FORM FRONT COOLING BAFFLE I/16WIRE LOOPS SUPPORT COWL RING TO FIREWALL ON FOUR WOOD BLOCKS IN RING 1/4 PLYWOOD FIREWALL 3/I HG 1/2 BALSA FORMER NO 1 1/4 HARDWOOD BLOCKS THRU 4 RIBS 10 SUPPORT L G WIRES AND CLIPS 3/16 WIRE FOR BOTH LANDING GEAR STRUTSAL BIND AND SOLDER AT JOINFC 14 Model Aviation Lu 6 1/8 X 4 BALSA SHEET PLANKS ARE FORMS EACH SIDE OF BODY RUNNING ENTIRE FUSELAGE LENGTH 1/8 BALSA SHEET ALL FUSELAGE FORMERS EXCEPT NO3 3/32 PLYWOOD FUSELAGE FORM DOUBLER FROM FIREWALL TO FORM 5 AND DOWN TO BEAR ON WING CENTER PLANKING 1/16 PLYWOOD WINSHIELD FRAME TAL WIRE TACH THRU C 1/4 PLY WOO D FIN LEADING EDGE II [2 4 2 SHEET BALSA L G FAIRING SIDES 1/32 PLYWOOD CENTER PANELS 1/2 BALSA SHEET LAMINATIONS FOR PANTS MAIN BODY May 1980 LLSA DECKING USING iR SHEET 1/8 X 1/4 BALSA ALL STRINGERS / I I I I I I I I I I U r- LU C 2 0 0 uJ 2 2 0 I I I I I I I I I I I I 15 Lowell Bayles derby placed second netted young company nice piece change Several wealthy sportsman pilots wanted little 25-foot-span sportsters total eight built Some Cirrus some Menasco some Warner radial engines Various versions known Model B C D E Sportsters very aerobatic extremely fast power various racing events day nothing class could stay built racing planes soon proved unbeatable class Bill Sloan owned two Model E Sportsters tells racing like taking candy baby trying find something would make money com pany Grannie thought two-seat version Sportster might answer Senior Sportster Model Y bom NRl 1049 built 1930 delightful ship fly powered 350-hp Pratt & Whitney Wasp Jr fantastic aerobatic capabilities extremely fast Maude Tait daughter airport owners flew craft lot won races set new womens closed-course speed record 1876 mph winning Aerol Trophy Race Cleveland 1931 Bob Hall flew Senior Sportster fourth place Thompson Trophy Race year race won Gee Bee Model Z Sportster first aircraft designed specifically racing Grannie Bob Hall Model Y Senior Sportster won races both womens events piloted Maude Tait also mens events piloted Russell Boardman two would fly race site remove front windshield cover front cockpit special metal cover 1932 Russell Boardman AREA135 SQ FT WEiGHT P&W WASP JR 500 LBS PAW WASP2fl LBS MAXR RACES 1ST AEROL TROPHY RACE MAUDE TAIT 4TH THOMPSON TROPHY RACE BOB HALL 1932 1ST OMAHA AIR RACE FEATURE FREE FOR ALL -RUS BORONIAN 1ST OMAHA WONIANS FEATURE-MAIJDE TAIT 1ST CHAS HOLMAN AEROBATICS TROPHY -RUS BOROMAN 1ST NIACRA FALLS INTERNATIONAL AIR RACE -RUS BOROMAN 1ST NIAGRA FALLS INTERNATIONAL AIR RACE -MAUDE TAIT 1933 1ST DETROIT AIR RACE FREE FOR ALL -BOB HALL 2ND AEROL TROPI-f RACE-MARTY BOVMAN 5TH THOMPSON TROPHY RACE ZANTFORD GRANVILLE SENIOR SPORTSTER MODEL Y fly OiU fin AIrcraft 16 Model Aviation Finished landing gear fairingsnote alignment pegs inside opened fairing Robust nice looking too difficult make Built-up landing gear fairings 6-in Du-Bro wheeis une rairing nas roughly shaped other lay-up state before carving Steps making cylindersee text details Dummy engine adds little drag does hinder models flying engine cooling 1/4 SHEET BALSA T E HARDWOOD HINGE BLXK I/4XV2 BALSATE 1/4 X /2 BALSA LE1/4 SQ HARDWOOD HINGE BLOCKS WITH WIRE PINS IMBEDDED SPRUCE BRACESIN ELEVATOR SPAR TAIL SKID WIRE INTO HARDWOOD BLOCK ON I/B PLY PLATFORM ELEVATORS INTO UNIT SOLDERED BELLCRANK I/4X /2 SPRUCE SPARS I/8PLWXD DIHEDRAL BRACES 4 AT FRONT AND REAR SPARS THRU 4 PLY RIBS ___________ I/4ALUMINUM JLTORQ TUBE TO SERA BELLCRANKS 4 BALSA T E STOCKI/8X BALSA SPAR WEBS FRONT AND BACK 1/4 TRIANGLE STOCK GAP FILL 3/32 BALSA AlL BASE WITH RIBS TOP AND BOTrOM 11/8 BALSA SPAR I/4X HARDWOOD LE I/4x I/s HARDWOOD HINGE ON 1/4 ALUMINUM PIN BURIED BEHIND LE I/2X 1/2 AILERON SPARAT WING TE ______3/8 BALSA WING TIPS I/4X 1/2 SPRUCE SPAR RAILS3/32BALSA RIBS UP TO THROUGH R[BS 2 FRONT 2 REARLGEAR SECTION WHERE 4 RIBSAREV8PLYWOOD 1/2 X 1/2 BALSA LEADING EDGE May 1980 17 Maude Tait swept mens womens events won Omaha Air Races Boardman strapped himself Y again won Speed Holman Trophy won National Aerobatic Championship also made fast record-breaking flight after midnight Chicago Newark bring east newsreels Democratic national convention time record 3 hrs 38 mm Senior Sportster truly remarkable aircraft just plain fun fly race other competitors watch its tail end flown over country served support aircraft racers 1931 32 33 Unbeatable its class could hold its own against bigger powerful Thompson Trophy racers flown Thompson twice finished money both times being piloted fourth place Bob Hall 1931 fifth place Zantford Granville 1933 After R-I R-2 racers suffered misfor tunes 1933 Bendix race Indianapolis Zantford Granville Los Angeles Y waiting racers arrive flew Indianapolis met contingent irate FRONT COCKPIT COVER 1-32 PLY V E PROP BLADE 1-2 BALSA HUB I-H2 OOWEL OUMMY ENGINEFhEWALL__ FRON T- EOSOIV MOUNT WEBRA PEED 91 COWL RIIVO UILT OF LAYERS 0F3-32pLy AND I8 BALSA FORMED UND II 1-2/N 0/A FORM 332 PLY IB BALSA LO FAIRING FRONT VIEW IT k-5 FIRE WALL / VA F-lB1 7 O EWALL 1-4 PLY F-I P2BALSA F 2T F2 TRIUMPH GAS GAGE GAS AP 1 COCKPIT COVER F-i r -4_ -2F-SH _JF4 Ill I_________1 I 1 12 TOIG OZTAIVKIcIB8PLY STRUT MOUNT jUl _____COMPRESSION S TRUTS _____BAT TERt-RECEI VER OS SPLICE a--__ BOoB 4PLY 1-16 1-HIRE COWL MOUNT 3-I6PLY BRACKET 4 LO-1332PLY LO- 1-2 BALSA BIND AND SOLDER LG-3 1-2 BALSA LG-3 3-B BALSA LG-4IBFIL 1-2 BALSA g rj OU-BRO WHEELS National Aeronautics officials investi- saw fit condemn three-year-old fabric gating accident took life Russell aircraft Zantford finally made arrange Boardman officials grounded Y ments able fly ship home 18 Model Aviation Open cockpit door reveals burled aluminum instrument panel Quarter-scale instrument faces now market Senior Sportster caught during its low passes Clayton R/C club field An unusual rear view shot affords interesting ornpr-iburi U U1 IOwUUWU S! frame dihedral plane probably would allow some pleasant hands-off flying FULL-SIZE PLANS AVAILABLE. SEE PAGE 128 LG-2 F-5TF-GT F-TTF-ST FUSELAGE F-4SFORMERS 1-8 BALSAF-5SF-6 SF-7S IF-6 RAME 16 PLY F-F III -IF-IF-1-4 BALSA I'II , EETINGAA--F BX/deionr--e. ISTAB PLATFORM COLOR SEPARATION:ARROwS-SHOW 1-8 FUSE 9ff3ES--.-1-4 PLY HORN BASE II -- SPRUCE BRACES 32 PLY FUSE UBLER TOIBXI-4STRIIVGERS-IB PLY 5Kb BASE NYLON BOLTI PRUCE BLOCK MOUNT BLOCK 3/32 WIRE 5Kb 316 LO WIRE REAR LEG SlOE VIEW FRONT LEG FRONT VIEW LG-I 7 Springfield February 1934 Zantford Granville killed landing crash en route deliver single-seat sportsters Things went bad Granville Aircraft Company thing sold sheriffs block Bandleader Harry Richmond New York acquired Senior Sportster completely recovered installed new engine Shortly after its overhaul complete craft took off North Island Airport La Guardia Field soon thereafter its propeller came loose Vibration tore engine its mounts known pilot though wearing parachute rode aircraft down safely flat spun Flushing Meadow little damage aircraft Before could removed destroyed vandals very sad way such great aircraft end second Model Y Sportster built special order Cord Automobile Co used test bed Cord-produced 215-hp Lycoming R680 engine Granvilles Continued page 95 May 1980 19 IO MODEL Y OESIGNEO B ORAWN BY HENRY HAFFKE SPAN 90 IN SCALE-31N-IFT ROWER 91 WEIGHT 14 LBS PLATE OF 2 2 3 4 5 6 78 9 Gee Bee pilot Bob Hall Henry 114-scale SeniorSportster recent 50th anniversary Gee Bee Company Springfield MA Photo George Beifus Gee Bee/Haffke continued page 19 never paid another example financial dif ficulties plagued small company 1933 second Y NR7l8Y re-engined 450-hp Wright Whirlwind modified Art Knapp Bob Hall 1933 Chicago International Air Races After placing second womens Free-For-All race 1894 mph Florence Klingensmith entered big race Frank Phillips Trophy Race mens Free-For-All erroneous stories have told aircraft shedding fabric breaking up air given eye-witness account what actually happened traveling excess 200 mph led race seventh lap time around banked around near pylon fabric could seen bulging out between ribs Rounding pylon lap fabric seen pop open between first second inboard ribs loud noise suspected could have fiightened terribly noise fainted etc apparently froze controls out control plane simply flew off course shallow descent side knoll quite some distance course killing pilot Bob Hall has told during race other Model Y clipped pylon shearing over three feet left wing tip no trouble continuing making uneventful landing Senior Sportsters truly remarkable aircraft hoped have seen last know least two men contemplating building Model Y Senior Sport ster hopefully will again see great aircraft take sky along Model Z has recreated flown Bill Turner California Construction drawings basically first Model Y Senior SportsterNRl 1049 flown Maude Tait winning 1931 Aerol Trophy Race However plans can used model other Model Y NR7 1 8Y Two versions NR7 1 8Y could built looked quite differ ent 1933 engine change factory version NR7 8Y smooth cowl landing gear fairings open 1933 modification rocker housings cowl also landing gear fully faired version also alonggentle sloping windshield Basic structure same versions Engine installation main difference Color NR718Y cream red NRl 1049 white red Exact colors picked out color charts Bob Granville Randolph Tuscon Cream Sunset Red NR7 1 8Y Juneau White Sunset Red NRl 1049 Fuselage basic sides prepared X 4 X 48 balsa will necessary add short piece front splice shown plans make fuselage sides long enough wing saddle location additional section added below main side sheet one-piece 3/32 ply forward fuselage doubler added front F-S location After basic sides have laminated slide F-3 position locate one-piece firewall sides Epoxy parts line up thing weighting structure upside down flat level surface Reinforce firewall triangle stock inside fuselage sides structure com pletely cured remaining fuselage formers Continued page 98 NORTHERN CALIFORNIAS LARGESTU DISCOUNT HOBBY SHOPI Iwell FUELyou II New high film strength lubricant increased power engine life Highest quality ingredientsI IJ Detergent action cut varnish II II II II II II II II II II IHOURS Monday thru Wednesday 930-630 Thursday & Friday 930-800I Saturday 930-600Sunday 1200-500 I. m May 1980 95 MIDWEST PHODU1S COMPANYSend SOC 400 S Indiana Street Hobart Indiana 46342complete catalog Telephone 942-1134 CUT / 4 OFEP SLIT ALONG THE FULL LENGTH OF THE MATING SURFACES Still Using bid Fashioned HingesS A - will gain control efficiency eliminating gap between moveable stationary control surfaces EASY TO INSTALL IA/STALL bINGE USE STRAIGHT PAl TO MAKE SMALL HOLE EVERY IA/CR OR SO ORP CYAAIOACRYLATE GLIE Al HOLES CAPILLARY ACOON aILL CARRY GLUE ALONG ENTRE JO/NT PRIcE 3 ff l95N FOR 400 rIGAIAL SECVR/TY AS A/EEOEO FOR FINISHING ____________________________________ SENT SMALL P/Al EVERY FEW / HES CUT OFF FLUSH FLL AGO SAAO will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 450 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATER IALS COMES IN 3 FT LENGTHS SMALL 1/5 OR LARGE 1/A added main stringers along sides Leave off rear top stringers until tail surfaces installed Omit bottom rear stringers until wing fitted fuselage later top forward section lower forward section sheeted 3/32 can planked using 3/32 strips Add s ply plates mounting com pression struts s ply skid base spruce block cut support tail skid added engine installation now completed used Webra 91 Edson adjustable mount Edson thrust wedges give rightthrust offset After wings tail surfaces have built installed fuselage finished adding rear stringers top bottom sections Wing Fillet After wing has installed / 16 ply base glued wing saddle extend ing 3 inches out fuselage sides wing assembled fuselage base will fit properly dihedral angle forward section fillet built up 2 balsa blocks cut fit curve fuselage airfoil Fill behind wing bulkhead #6 2 soft balsa block form aft end fillet Cut fillet bulkheads 4 s balsa install fillet planked s X 4 strips little final carving sanding completes fillet Engine Cowl form necessary build cowl easily made around 1112 form could find nothing size cut two ply discs spaced give 4-wide form mounted stand easy work layer 3/32 ply wrapped tightly around form second layer added over first joints staggered Use masking tape hold ply place glue dries Layers ofs balsa Send Free info ou f ne p oducts FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 GET ORGANIZED s set 014 05045 tries heMs over 4 years yost favorie 8 II magazines 4 MAG FILES $495 Send $495 pies 5100 tar postage handierg 0GM INOUSThIES PO Box 388-K DOVER NH 03820 added 4 ply After layer added couple large rubber bands aroundthe structure will keep pressed together until dry completed cowl structure slid off formthen carved sanded final shape Cowl attached firewall four L-shaped music wire brackets permanently mounted inside cowl fastened firewall sheet-metal screws Exhaust stacks formed aluminum tube mounted inside cowl spruce blocks Wheel Fairings built up lamina tions ply balsa layers have glued together weight clamp heavily allow dry completely before carving shape Also before shaping align two halves fairing dowels front rear fairings Spot-glue halves together carve sand final shape Landing gear legs formed 3/16 music wire Both forward legs identical rear leg must formed right left part Drawings show side view rear leg front will have same upper bends front leg except side will bend right other side will bend left front rear legs mounted wing mount blocks straps screws Bind two legs together copper wire solder preferable use silver solder joint Du-Bro 6Xdia wheels retained axles wheel collar side wheel assure proper centering wheel fairings fastened together over wheel legs held together spot-gluing can screwed together short screws prefer Fin Rudder vertical surfaces built up /4 sq balsa i/ply fin leading edge 4 spruce fin trailing rudder leading edge Rudder trailing edge cut i4 balsa Scale hinges installed shown drawings made 4 ply epoxied trailing edge fin lower aft end fuselage can use favorite commercial hinges place scale hinges shown 4-ply insert built rudder base rudder hom tail surfaces have no airfoil simply rounded way around fin rudder may also built solid 4 sheet balsa simpler structure preferred Weight no problem model will probably come out little nose-heavy case real air craft real aircraft 50 lb anvil mounted under stab bring CG belonged continued RC Aerobatics/Van Putte continued page 26 okay use fuel tumed blue originally red turned out left airplane full fuel tank fall fuel reacted brass tank tubing turning blue Chances less emptied tank last fall little bit fuel can peculiar things fuel tank Filters can clog up fuel line gets soft gummy sediments can develop bottom tank Castor oil based fuels can give real problems since oil tends spoil actually turn rancid storage moral flush out tank check out fittings tubing problems have last years castor oil based fuel left pour some clean container look little white flakes suspended flakes castor oil precipitated out fuel mixture wouldnt use dont like castor oil fuel anyway because brown mess gets over head cooling fins engine lot good commercial products cleaning engines baked-on castor oil just cleaned dozen such engines bought flier getting out hobby quart GMP Motor Keen cleaned last engine nicely first Whatever use dont try commercial oven cleaner attacks aluminum After youve done everything else checkto see engine servos securely bolted down settle back enjoy good feeling confidence equipment can give Clubs have kinds awardsbutlneverheard about Crasher Trophy until reading Bell Air R/C Flyer Belliogham Washington new award announced recent newsletter follows now have Crasher Trophy basic rules follows eceive award must crash presence current holder trophy get rid trophy must present next guy crashes must present him immediately say must have trophy you should happen earn award will allowed fly bringing trophy Boy thats rubbing Ive reading quite few newsletters FCC making refunds Citizen Band oper ators paid up $20 licenses years 1970 1976 get special booklet need apply refund write FCC Fee Refund Program Box 1788 Hyattsville MD 20788 Ron Van Putie 12 Connie Drive Shalimar FL 32579 98 Model Aviation GAPLESS HINGE SLOTTER Simplifies installation Gapless Hinges Makes Slots 4 Szes Baisa 5-S-S -t APRiCE 195