DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation
Edition: Model Aviation - 1979/12
Page Numbers: 42, 43, 44, 45, 123, 124, 125, 126
DURING first two decades following termination World War II appeared several English American reviews Luft waffe history conveyed either implica tion statement Heinkel 51 first fighter available pilots revived German Air Force strict explicit torical sense erroneous assertion some 700 Heinkel 51 machines built mostly Arado Erla Fieseler utilized before after March 11935 date formal Luftwaffe recognition classic biplanes first Luftwaffe fighters fact such identification must involve some definition inception Luftwaffe itself Arcido/68F An intriguing account earlydays then-secret LuftwarTe priorto WW II little-known Ar 68 principal first-line last biplane fighterjust prior Bf 109 era S Connie L McClure 42 Model Aviation 5001 935 tt certainly force being before early 1935 returns period 1925 1929 Lipezk secret German training test base western Russia might concluded first fighters Luftwaffe should identified several Fokker D-VIIs some fifty Fokker I-XIIIs among others may interest note Fokker D-VII best fighters World War still employed fighter trainer late 1929 some delivered Lipezk after much later D-XIIIs However operations Lipezk 19251933 few less extensive concealed locations within Ger Asfollowers McClure drawings aware Connie cleverly incorporates modeling info what appearsto purelya scale drawing builds model shot demonstrates modeling first-rate drafting model lstheAr68-E drawing forthe Ar 68F Inverted vs upright engine conspicuous difference preliminary preparations foundations Luftwaffe Study some words situations scenes close cooperation Russians tend expose personnel secret organizers covert aeronautical operations yet really thinking conceptual terms later came configure Luftwaffe Whatever actual individual attitudes remains Lipezk other covert operations autumn 1933 provided existing Germany some 550 fully-trained military pilots suitable spectrum aircraft prototypes having respective contemporary qualities performances nucleus insemination physical conception Luftwaffe January 30 1933 Lipezk still operation being no less German air base Soviet soilNational Socialist Germany ma terialized view opposing extreme political polarities rather amazing base Russia terminated until autumn 1933 time bases operations being activated over much Reich being Reichskomrnissariat RLM Air Ministry Reich under Hermann Goering Goring declared April 27 1933 date seems logical selection actual inception Reichsluftwaffe independent air force first named some two years later Accepting still-secret Luftwaffe fact initiated late April 1933 though officially disclosed world until March 1935 question first Luftwaffe fighter can considered understood experimental prototype test Lipezk else does constitute accepted machine term first fighter means design actually put some production limited utilized some formation organized unit including training units Within quite rea sonable stipulations available evidence indi cates first fighter inventory still covert Luftwaffe theAradoAr65 machine tested Lipezk thus known Russians first production version Ar 65E supplied operations Berlin-Staaken late 1933 covert days before Luftwaffe proclamation mili tary markings some training formations organized within so-called Advertising Detachment Within cover organization fighter squadron Berlin- Staaken later Doberitz became Jagdgesch wader JG 132 Richthofen near Konigs berg East Prussia third near Nuremberg initial fighter organizations received first Arado Ar 65s little later first Heinkel Sis Prior reference period before Luftwaffe military markings 19331935 motivates recollections Balkenkreuz Greek Cross employed until March 1935 Hakenkreuz Swastika placed vertical tail surface German aircraft after early 1933 after Machtubernahme coming power Some description Arado Ar 65 first inventory fighter Jagd- Fighter chase pursuit Jager- hunter Luftwaffe important predecessor Arado Ar 68 E/F should preceded brief historical recount concerning very important builder Arado Flugzeugwerke GmbH Preliminary related interest examine possible explanation assertion Heinkel 51 first Luftwaffe fighter appears December 1979 43 seldom-seen profile Germanys tirst-Iine tighter just prior sne appearance opein ot tue log Some 500 interesting biplanes built Most people attach notoriety tne Heinkel 51 biplaneit seems propaganda stressed Heinkel because prettier Both pictures actual aircraft show Ar 68-E See charts refer plan Ar 68-F Rq Sne norur M4RD SAeSA + -K m 28S R1882 CROfltVtr flP CA4 fNW4flr* AASA APMAEIII\77JII o s atno jX woos2 --1 cncNs-osn*o-rs ncss BSARERS 4 4 SAR05 CRC, 110wv frALC PAOPELn-R S____ 4-MESS- O PLYWOOD APPAOXhoAnCfl St S 77 Sorr BALSA00 MOSVC WLRE 0//RNOpoonc OCAhECT/enS UtitmO 2rcoSrrneaoor a-r Ann rotr 60/JR PAWELSECMY Sr/JOEfl/ZERO/n- tiPIEMEnrES ST/JO CACAOS tj 00 sorso an-woos __ti fl/deS rySouoo CENrE PAnELS /OisR~A- COWx NC SEPARA OSS /nAAqO SAL/A 4SPAAAT/oe VLEWtCOvaCwnsCL-______--9A /5/ C REtOONEC AA AAOCLLVVT PRA Cr/CC K -- n - ___ r~ : COttdL/tO/E//N/LE AJSE4SLY -SE/JENCE-aor COwOALLO SEt r/O/9-E/oC/CE-rq ooT SECrOn CELL, WorE A/V COwL/n Fmonsoot STAT/ON C -flosS nor nrc PLATE 0/REEL 0 S/CO flLorE 239STAT/On C 7 MAC/I/A/C OR FLOE CR0/f 7R 5/ACOw/LOG SAoASAF/ ALC/5/JMROOSsy004/-ror/_____________STEOROF/LE ,r 38 DR/Oh 0/0/S s/AVEAL/OC AdOrE e LorE//c/no TO JA erroneous conclusion years after fact partially due graphic structure German propaganda 51 impressive looking airplane partially due vigor Heinkel public relations However latter part possible explanation no way intended impugn fundamental signifi cance Ernst Heinkel either entire evolution aviation essential contribu tions rather amaxing creation unprecedented expansion Luftwaffe deed candor ardent National Socialist would compelled admit Ernst Heinkel perhaps others working foundations facilitated inception Luftwaffe years before January 30 1933 Meanwhile parallel interest realixe Heinkel 51 44 Model Aviation ID 3D 3D r t-4 \Pnhn4nr A0~C CiSA SPA CrEJAC Leer flAWS JWOWA AtONT WAnS CAAOJtTE 00J fl4JJVC whqE AXtJSWSfl PC/SE SOCCEr SAuCt I iIi\TA/fiLES AS 5500W/I~pul 6 ______________________r __________________________ __-H______-I__ IL___ Ii_fl__ _ A/OS Zn WC0II A/S AOOP 405 AII W/PA 4SYWOO0 11______ I/ i 66 -A_ //7-6 11 6 6 /H wISP flAWS OPPOS/PA______III Atari nine nor USC/AL P5bps EflS/PII -611___ 2SOAP SAL/A S/SPA i7 50611 5/06 SCASi SIOSeLwAE.. rear v/ECU ens ASLAP0n 5/r4 o WACS / CA CA LAPT S 01-n A/Sir 1 w/PSS 0036 AICAC/C CU/AZ API4 2S4C 1-8 AC//tTASzC 5/04 / SPA/A spoon SPAS 0VCrtflS spoon spen 311 0005 t-PNtS 6 --I 2 2t / atao Faoporrpc Sf 61116 JIASECYJPAD- 0-S WAS p/COOP CEASSAS 8/0/AWE r409AA 110 PAO0C#CP0Sq11/S ZASP CLE/tAn &OLA/LE 5/GArLE WPROOOPflOe WAS 40400 AS 00 6/s SSO11/SSS1e0Ay$00r/p4 e 050 Sr tona, tfcCuAt we, C/PC /1-re 41- COOnt 4 AleC C/OS GiOfhlrCy WE/S/C Sr*C/ePC/COE SUOCESPAS sarIS//AS SrAUorC/RE COoq4 151cC esat machines built Arado Heinkel industrial complex engaged massive efforts devoted several other aircraft projects mostly Heinkel/Gunther design Siegfried Walter Gunther twin brothers highest design development responsibility Heinkel organization Arado Flugzeugwerke GmbH Gesell schafi mit bescbrnkter Haftunglimited liability company evolved Warnemude plant World War firm Flugzeugbau Friedrich shafen GmbH some fame early heavy bomber construction Warnemude town Baltic coast just north Rostock Mecklenburg location considerable importance history German aviation particularly naval aviation Obtained Hugo Stinnes 1921 Continued page 123 December 1979 45 11 26 6 _ 666 116 6C 66 6 6 01 2 2 CC 6 I$ 662 CC 626 6666 CCC 6C $0 6 throttle response around idle Future columns will describe fuel meters on-off pressure systems use exhaust slide want wait fuel meter like shown photo available Harry Higley 433 Arquilla Dr Glenwood IL 60425 Richard L Perry 5016 Angelita Ave Day ton OH 45424 CL Aerobatics/Paul continued page 38 outlet plastic handle Richard Byron has cables tested local college said broke around 100 pounds pull very good still some Control Specialties In-flite adjustable handles available although Bob Hunt now working Flying Models high density foam handle has wide spacing very good cable George Aldrich handle designed George after used years good light weight handle cable very strong Georges handles several colors plastic part handle Fox makes steel handle large wooden grip handle has two line spacing positions wooden grip real handful can sanded carved conform hand Bob Baron designed handle has magazines two occasions MAN August 1970 ModelAviation April 1977 adjustable handle basis marketed Gene Martine Custom Master Products Jacksonville Fla handle favorite USA team member Gene Schaffer well several other Eastern fliers Sullivan Products also has plastic handle nine adjustments may fit -- hand want build own handle certain pull-test well before using electrical equipment get everything plain old 1 volt battery two alligator clips using Du-Bro Kwik Gb go-plug connector No DU-KG-147 using awet cell Wet cells usually 2 volts need recharging will blow out weak plug whats sense having weak plug anyway Getting very popular now Fusite GloBee Fireplug Charger costs about $3995 retail has ammeter built rechargeable will show plug flooded bumt out seems last long time between charges number fliers build unit flight box has ammeter can test plug usually have two 1-volt cells wet cell built types units Tatone makes nifty hand-on con nector eliminates wires called Pocket Booster Prather makes starting battery com bination called has NiCad battery plug tester battery tester together about $2995 other units available should check local hobby store catalogs Another item getting fuel gallon can fuel tank will see guys using old fashioned fuel bulb various types plastic fuel bottles squeeze bulbs ete Some use manual feed fuel pumps attached cans few use electric fuel pumps Just remember some synthetic fuels will attack parts plastic fuel pumps reduce putty Lastly number fliers use tachometer set rpms engines ground trusting ears partners tojudge engine speed Bob Baron swears Heathkit tach just Gene Martine likes Royal Pro-Tach uses Under dlffering weather humidlty condltions FUN SCALE SE RI EScf , ANG 40 new super quiet K&B 40 R/C muffler requirao no exhaust plugs fittings adsgstcrn Muffler uneolsined fit exhaust stack end cover exposed holes Just bolt on.thatn iti Will reduce noise 10 12 dacbeln little no tom pmn u Noiw cancelled interposing noufld wanes Radl cal tree flow enpennion dumber angled blow enbeust emey front lusalegs us amy attach sHag pronision pressure fitting Also snellinle lot ENYA 20 35 40 48 06 MAX 30 35 40 SUPER TIORE 021 35 46 Add 8100 extra eaa engines apacify type MountIng strep ncraw included Dealers Distributors InvitedOnly catalogNo3061395 calNo 35455 Shunt Beam 115600 catr4o 30453 Long Beam 2.S0O Add $1 25 postage handling CA residentsadd 6% tax ga a cast Aluminum K & 5 40 RIC Engine Mounts 01 006 8pp00 JuSt th aug n thu mount thu probably good idea use tachometer suggest obtain copies available catalogs includlng used Radlo Control take time go through carefully information stunt orPAMPA con tact Wynn Paul 1640 Maywick Drivn Lexing ton KY 40504 Arado 68-F/McClure continued page 45 plant first devoted construction furniture small boats although Stinnes intended again build aircraft time acquisition Thereafter 1924 very competent aircraft designer kg Walter Rethel resigned Fokker Netherlands joined Stinnes Wamemtlde Apparently name Arado officially adopted until 1925 Rethel designated Chief Engineer point great interest note same Walter Rethel years later Chief Engineer Bayerische Flugzeugwerke AG later being Messerschmitt AG great responsibility creation historic Bf 109 produced fighter time relation Arado initial location Warne mude may recalled first Heinkel plant also located 1929 Arado design bureau under Rethel produced several machines among noteworthy SDi SD2 SD-3 fighter biplanes SSD1 float fighter fighter designs prototypes led creation Arado Ar 64 immediate predecessor first Luftwaffe December1979 123 Quiet Power Taone Makes Easy EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229-G Hales Corners Wisconsin 53130 issue EXPERIMENTAL AIRCRAFT ASSOCIATION Homebuilders Corner ers Editor Line Headquarters Oshkosh Countdown Hospitality Air Hostel List tplane Builder Ground Up Craftsmans Corner Jim Stoias Cassutt e Ansleys Dyke Delta rnational Air Races Show on Accent y Ecstasy Chapters Action Promoting EAA Today Show What Members Building Graphite Tubing Oshkosh 78 EAA Volunteers ndar Events cale Mustang ington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp fighter Arado Ar 65 Available prototype 1930 Arado Ar 64 single-seat biplane orthodox configuration construction Though some conflicting statements concerning dimen sions seems certain wing span same Ar 65 stated disagree ing publication 112 meters about 36 9 However disagreeing publication gives Ar 64 span 100 meters available pictures seems too small Power provided Bristol Jupiter ninecylinder air-cooled radial engine built Sie mensHaiske rated about 450 hp Reported maximum speed 149 mph service ceiling some 6000 meters 19680 feet being recognized prototype less adequate contemporary per formance useful exercise working up design production Arado Ar 65 Designated Arado Ar 65% first prototype Ar 65 completed 1931 Powered BMW Bayerische Motorenwerke/Mun chen upright V12 engine BMW VI 73 continuous rating 500 hp 750 hp minute prototype demonstrated greatly im proved performance relation Ar 64 apparently plane and/or some immediately following prototypes under went test Lipezk number design changes led Ar 65d put test program 1932 during period Arado organization experienced great change redirection partially initiated death Hugo Stinnes founder Thereafter 1932 Ing Walter Blume replaced Walter Rethel Chief Engineer whereupon latter eventually departed Bayerische Flugzeugwerke Messerschmitt place history Within afewmonths onMarch4 1933 Arado acquired GmbH designation al ready indicated due major financial injections new government came under control RLM First inventory fighter Luftwaffe Arado Ar 65E having recorded specifica tions shown chart Constructional materials techniques em ployed both Ar64 Ar 65 involved rather fascinating combination welded steel tubing wood plywood light metal sheet work fabric covering aircraft construction nature readily authenticated model aircraft construction era transition aircraft construction always interest ing era science technology Most produced model Arado 65 Ar 6SF being essentially same specifica tions 65E except some equipment changes empty weight increase under 90 lbs Production Arado Ar 65 continued until early 1936 terminated total some 170 machines Employment fightertrainer continued years after first-line service Indeed vital essential role Arado Ar 65 fighter-trainer Whereas Arado Ar 65 biplane first Luftwaffe production fighter much interesting Arado Ar 68 last production biplane fighter built Luftwaffe Designed under new Arado Chief Engineer Wal ter Blume very successful Ar 68 two parallel projects initiated about same time other being unsuccessful Arado Ar 67 less 100 meter wing span 9677 meters about 31 9 smaller Ar 67 biplane powered Rolls-Royce Kestrel VI engine 525/600 hp Only prototype built never armed proposed two 79-mm MG 17 guns As Ar 68 first much greater potential Ar 67 soon discontinued its favor Engine availability selection ur gent consideration stage Luftwaffe development much less throughout its entire history outset thereafter AradoAr68 airplanefor two engines after built entirely different third radial engine Arado Ar 68H direct competition replacement Heinkel 51 first prototype Ar 68% fact last fully operational Ar 68s Ar 68F 1939/1940 powered essentially same engine Heinkel respectively BMW VId BMW VI 7 3Z Ratings latter engine 750 hp takeoff 500 hp continuous Though initially unavailable intended engine Ar68 new Junkers Jumo 210 inverted V-12 engine being same engine intended Messerschmitt Bf 109 first designed employed early machines First tested early summer 1934 initial prototype Arado Ar 68a Ar 68 Vi after introduction Versuchs numbers identifr prototype aircraft 1935 BMW engine greatly exceeded expectations designers about same maxi mum speed Heinkel 51 Ar 68 displayed excellent handling properties moreover proved fighter very robust structure something apparently Heinkel 51 particularly known Although first prototype tested pow ered BMW engine new Junkers Jumo 210A engines became available second third prototypes first flown spring summer 1935 third machine Ar 68c first Ar 68 124 Model Aviation EAA members receive SPORT VIA TION magazine FREE BROCHURE PACK $150 AL DUES $2500 EAA equipped two synchronized 79-mm MG 17 guns fourth Ar 68 again powered BMW engine first actually identified Versuchs number being Ar 68V4 Following fifth machine powered Jumo 21ODa engine two-speed supercharger takeoff rating 680 hp being Ar 68V5 became production prototype Arado Ar 68E-1 Appearing definitive execution intended design concepts Arado Ar 68E1 conformance specifica tions shown chart Early 1936 no decision concerning produc tion Arado Ar 68 yet made Ernst Udet himself time Luftwaffe Inspector Fighter Pilots put test speak mock combat Jumo powered Ar 68 against top Luftwaffe fighter pilot flying Heinkel 51 easy victory over Heinkel precipitated immediate pro duction order Arado Ar 68E-1 However production tooling almost complete occurred drastic redirection priori ties application Junkers Jumo 210 engines certainly relation oncom ing Messerschmitt Bf 109 production per haps also relation other Luftwaffe projects resulted another redesign Ar 68 again incorporate BMW Vi 7 3ZuprightV 12 engine 51 engine Thus Arado Ar 68F-1 created fact Ar 68 model see front-line service after September 1 1939 Production Ar 68F did noi might have expected end Ar 68E means As events rapidly unfolded poor showing Heinkel 51 Spain motivated yet another change priorities Junkers Jumo 210 engines being massive produc tion Messerschmitt Bf 109 monoplanes still distant Thus fall 1936 Jumo 210 engines again made available Arado Ar 68E machines after became principal production examples last first-line biplane fighter deployed Luftwaffe Consequently occurred aboutmid 1937 tomid 1938 whenthenew eraof Bf 109 opened Arado Ar 68E principal first-line fighter Jagdgruppen Fighter Wings Luftwaffe Although some conflicting numbers records seem indicate approximately 500 Arado Ar 68 machines built Arado Ar 68 mixed-materials phi losophy execution aircraft construction reached high state perfection Basic internal fuselage truss welded steel tubing rectangular section accommodating connec tions cabane struts integral engine mount structure lower wing roots gun mounts very robust landing gear Geometrical fuselage sec tion essentially oval maintained stringers aft cockpit below light metal rear deck light metal forward engine cowling also light metal Wings wood plywood construction upper wing plywood fabric covering lower wing panels plywood covering Light metal tail surfaces structure fabric covered aft fuselage below rear deck Propeller usually utilized two-blade fixed-pitch wooden Heine Final development Arado Ar68 Ar 68H prototype completed spring 1937 machine redesign incorporate BMW 1 32Da nine-cylinder radial air-cooled engine 850 hp takeoff featured enclosed cockpit four 79-mm MG 17 guns two upper wing Top speed 250 mph service ceiling about 30000 feet Few biplane fighters beyond Fiat CR42 first flown early 1939 immediately recalled Max/speed 274 mph 20000 feet Recalling reactivation Arado Ar 68E production motivated inade quacy Heinkel 51 Spain involved re-reallocation some Junkers Jumo 210 engines Ar 68 machines would have otherwise gone Messerschmitt Bf 109 production interest note two Arado Ar 68E fighters actually reached Spain As events ultimately transpired suffi cient number Messerschmitt fighters assure Condor Legion air superiority supplied Bayerische Flugzeugwerke des pite simultaneous production Ar 68E Arado course possible expansion production Jumo 210 engines Beyond Bf 109E machines sent Spain near end conflict powered later Daimler-Benz DB 601A inverted V-i 2 engines 1050 hp September 11939 amongthe hundreds Messerschmitt fighters first-line operational service yet remained 28 Arado Ar 68E-1 biplanes same status operating south-western region Reich after Ar 68F-l machines deployed night fighters year 1940 Thereafter biplane fighters Arados Heinkels some others relegated training schools some surviving until 1945 No recount Luftwaffe biplane fighters however brief complete some mention excellent Avia B-S 34 biplane fighters German origin acquired annexation Czechoslovakia appear last biplane fighters deployed Luftwaffe under combat conditions First applied training schools desperate days late war compelled deployment some Avia BS 34 machines defense Balkan petroleum region SAFE FLYING IS NO ACCIDENT FF Duration/Meuser continued page 47 thermal-detection devices techniques team organization management cheat getting caught oh gosh could write book will Model Models An article May issue SportAviation byTakashi Araki tells small simply built all-balsa gliders can used predict stability characteristics proposed full-size aircraft Strangely enough simple flat wing sections work well accurately formed airfoils profile fuselage works well three-dimensional relative weight wing loading model make little difference purposes Apparently spin characteris tics can rather accurately predicted too high-power flight characteristics can simu December 1979 125 IF R EALIS N/iSCALE ACCESSORIES WILLIAMS BROTHERS RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS MACHINE GUN KITS FREE-FLIGHT TIC DISPLAY MODELS SEND 5O FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 BROWN CO-2 ENGINES ENGINES ARE IN STOCK NEW CHARGER AND 5 SIZES OF TANKS BROWN ENGINES COMPLETE CATALOG $100 HARD TO FIND ACCESSORIES KITE AND PLANS FOR RUBBER POWERED MODELS PHONE 17141 4698675 Peck-Pelymeis W BOX 2498-AM LA MESA CALIF 92041 CUSTOM TUNED ENGINES COMPETITION ACCESSORIES Cox 049L051 Specialists brochure send 1 5c stamp Kustom Krattsmanship Brochure Box 2699 Laguna Hills CA 92653 714 830-5162 Diesel Conversion Kits e Power Quiet Smooth Economical Send 30 & Stamped Addressed Envelope Dealer Inquiry InvIted Davis Diesel Development Inc Box 141 Mllford CT 06460 Winning Ideas FOURMOST FUEL FITTING SETS Large Fuel Fitting Set cSize % IDPRICE S150 1 Tee 1 Elbow 1 Union 1 Plug Both Made Fuel Proof Polyethylene Small Fuel Fitting Set Size A6 10PRICE S125 1 Tee 2 Elbows 1 Pen Bladder Tee FUEL MANIFOLD This Manifold Provides Convenient Method Tank Filling Draining Priming %2 10PRICE 95 1 Scale 1931 Gee Bee Super Sportster IGeneral Arrange ment Drawing Catalog 25cBy W T Bill Given ERNISTIC MODELS PO BOX 6974 ALBUQ NM 87197 lated mild chuck article claims control characteristics can simulated too cutting away control surface taping back deflected position author cites cases unusual characteristics cures predicted small chuck-glider tests later confirmed expensive wind-tunnel tests RC model programs course models must accurately constructed attention must paid accuracy incidence angles CG positions model must launched proper flight attitude speed wonder dont use technique design aid free-flight competition sport models has done course isnt done very often reason bunch copy cats Basic area ratios moment arms dihedral angles CG positions have pretty well standardized before trying something really newa T-tail negative dihe dral stab canard winglets whateverwouldnt pay spend hour two doing bit cutand-try chuck glider first Certainly FF Scale modelers should able profit technique except perhaps few blessed nack being able make fool thing fly Hello Bill Warner course technique shouldnt work Reynolds Number thatbut ap parently does recently built model absolutely unstable Perhaps bi-stable would accurate description perfectly stable either normal glide near-vertical dive model wasnt far out should have flown well didnt might have profited technique shouldnt work does OHLG DT forms dethermalizers have 0491051 AIR FLO ENGINE MOUNT REDUCES DRAG VIBRATION FREE PRICE 250 FUEL SHUTOFF Can Used Control Fuel Flow Starting jPositive Airborn Shutoff PRICE 350 C FLASH STARTING SUNEXCELLER POWER S LONGER LIFE SLOWEST DRAIN GLOW PLUGS SWANSON ASSOCIATES gte P0 309 SI WAYNE N W JERSEY 69 ROUTE 29PEOIJANROcE 9W IERS used outdoor hand-launch gliders cluding drag brakes fold-down rudder drop-off nose weight pop-up stab popularized Bill Blanchard See Polly article May issue Bills scheme employed him others decade works just great some fliers prefer mount stabilizer bottom fuselage such designs pop-up stab wont work Orbiteer Gerry Giles comes rescue pop-down stab reported Torbellino sketch shows basic tail-end hardware front end can fuse burner such Polly Gerry reports prototype works very well does appear vulnerable damage feared Addition 1/16-sq spruce leading edge will help drawback compared pop-up lack adjusting screw trim However find once adjust ments warped little need ever change Note Blanchards version pop-up DT employs shims rather adjust ing screw Bob Meuser 4200 Gregory St Oakland CA 94619 FF Indoor/Tenny continued page 48 done yet another fun model idea glven specified set materials can build glider 30 minutes set rules specified contestant would furnished 6-in long piece 1/16X1/8 balsa 2X6X1/32 balsa sheet No other materials except choice adhesive permitted includes nose weight must derived balsa glue idea provides interesting challenge should thought out well advance contest Styrofoam prop blocla Bob Lieber has sug gested expensive balsa blocks no longer need invested prop blocks photo shows styrofoam block used forming balsa blades Coupe dHiver models also can used Easy B Pennyplane props Two precautions necessary first blades must air dried since baking oven would melt deform styrofoam second work sur face should protected rubbing epoxy glue foam Bob uses expanded bead foam material offers following advice about cutting helix Thin plywood some other hard material glued uncut block both top bottom gnide hot wire cutter top guide visible photo cutter wire must parallel end planes block during whole cut cut surface needs no sanding care applying epoxy glue will preserve smooth surface Bud Tenny PO Box 545 Richardson TX 75080 Junior/Hartmangruber continued page 57 once week Boys Club starters use Comet Fly Boy Cloud Buster kits because two kits excellent teaching fundamentals built up wing fuselage construction finer points model adjustments best flights After boys have mastered two models encouraged make own selections building proj ects have several have gone advanced free flight control line engine-powered models needs done ignite spark interest help grow Now must say should club club member volunteer conduct model group anywhere make one-time thing Continuous instruction flying operations necessary keep up develop interest boy Boys Club always influx new members time goes find boy often will show real interest educational value art model building really rest life others time may seem just something Boys Club knows maybe later life will remember enjoyed modeling resume building flying Editors Note numerous flying sessions localities have impressed enthralled kidsof ageswho ask models can befoun4 tofly Letters magazine reflect same needfor information So Wyoufree-flighters will bear us month wed like render much-needed service author outstand ing rubber-model expert familiar market availabiliiy invited MA share us experience building flying hund reds interesting aircraft Although talking scale will find included meaningful coverage non-scale items trainer intermediate categoriesgreat lead-ins tackling real scale stuff SAFE FLYING IS NO ACCIDENT 126 Model Aviation