OLD TIMERS Clarence Haught CHANGE pace Just few years ago contest entries old-time rubber-power classes minimal best Often trophies official scores Happily today situation improving more modelers discover joys rubber models possible reasons including increased difficulty finding original ignition engines flying condition high cost ignition engines new used conversions withstanding noise factors balky engines dead batteries vibration failures just plain oil mess over everything points hits home perhaps youre ready rubber power Old-time rubber flown two categories cabin stick Cabin self-explanatory stick doesnt refer motor stick-fuselage typified toy store ROG fliers Stick oldtimer refers built-up fuselage having cabin structure possessing minimum cross section area determined squaring fuselage length dividing product 200 Thus 36-inch fuselage 36 X 36 divided 200 would have minimum cross section 648 sq plenty good model designs available suit fancy Several published old model magazines Zaic yearbooks JohnPond PO Box3215 SanJose CA95156 has list old time rubber-towline plans available 75 cents addition published plans several kits market Midwest Gollywock Jabberwock Comet Sparky 4-Ks Korda Wakefield P&Ws short kit Korda name few good strip rubber becoming available after few lean years old timers quite dependent high energy rubber good performance Wakefield Coupe dHiver P-30 limited maximum motor weight 40 grams Wakefield 10 grams other two classes old-timer can use what needed long does become selfdefeating terms uncontrollable torque excessive model weight freedom use little rubber eliminates need packing maximum winds thus prolongs rubber life well reducing model damage bursting motors FAI Model Supply PO Box 3957 Torrance CA 90510 provides good product under FAI brand well stocking the~ new Pirelli strip rubber modelers getting good results Out Sig Sterling rubber long life good performance good rubber lubricant must Some old cooked formulas excellent have found mixing equal parts glycerine surgical jelly thinned slightly water hard beat cleans up easily water Trimming rubber model quite easy may build up power gradually until model performing satisfactorily However must kept mind rubber motors begin weaken after repeated use mislead making adjustments corrections will com patible new stronger motor Its best make up several motors change after two three flights allowing used motors rest week two before using again Motor size largely matter trial error six eight strands3 to4 loops 3/16 inch good starting place motor length should about 1 times distance prop hook rear peg Short motors tend have too much initial power burst Long ones produce lower power longer runs cruising climb Long motors can bunch up end run affect center gravity tensioner braiding strands will prevent Flight trim adjustments should separated climb glide Rubber models seem climb best right power trim should accomplished thrust adjustments Downthrust stall under power assuming correct CG placement side-thrust controlling turn Glide trim can corrected incidence changes rudder tab models flown right under power against left rudder tab provides left turn glide helps hold up right wing during climb old-time rubber designs did employ folding props using free wheelers instead Free wheeling props add drag sight prop ticking over model glides landing heartwarming experience Folding props efficient glide malfunction can really upset glide trim rate youre stuck whatever original design called No substitutions allowed Either way say prop carvingbuilds character can find ample information subject 1935-36 1737 1938 Zaic yearbooks Give old time rubber try Its great change pace Continued page 116 Beautifully built Lanzo Stick Ray Factor uses IL ssranos oi z rubber time perio4 fuselage model minimum cross sectionalewprpar n uirement length squared over 100 stick maximum lengthfuselage high placed stab potent looking prop marked designers squared over 200 dig Jerry Bockius picidealistic approach Photo Jerry Bockius 54 Model Aviation meet 16-year-old John Seymourtook second against Open fliers flew excep tionally good flying 02 So Long Original So Long contemporary Buzzard also out Chicago area H Murphy photo ahiIl Clodhopper CIA meet held WPAFB Dayton OH High lights deceive streamlined fuselage contaur enhanced full planking Remarkable its day Clodhopper Wakefield champion im mediate prewar period Pic H Murphy EAA members receive SPORT VIA TION magazine EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229 Hales Corners Wisconsin 53130 EXPERIMENTAL A SSOCIATION issue Homebuilders Corner ers Editor Line Headquarters involvement 80 osh 79 Energy Ultralights osh Awards 79 Chapters Action tplane Builder on Accent nes Oshkosh a Over Oshkosh Jim Theis Nighthawk Pegasus. Grand Champion Thoroughbred Glanville Skymaster osh 79 Custombuilts rve Grand Champion Humbug osh 79 500 Bowers Baker-Faick Competition etitor Flying L-B-F 500 Members Are Building ng Flea ndar Events Washington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp CLEVELAND GIANTS ds Largest Gas Plans Assortment 86 C-D GIANTS OVER S MOST EVERY IMAGIN TO 10 NOW AVAILABLE ABLE TYPE PLANE AND 140 Others n Ga 5,IN MANY SCALES9t. 6#/ooo C6 Cob, 526 69L,dkeg NT-211 $24 .. 64 teed C17E SMg $36 91 Li,dbege N0-211 $36 W 96 Beech C17-B Soo$49 61 AEG OIV LI Bo, $24 82 Lock II Elec,$32 10$ P0 ci P019 T$49 t4 SEc,, T/W SE-7 $24 68 Joolce oJU88 to, $24 126 Sjoon T/W $87 $22 66 PIo,oo B ood W29 $20 59 EciDol Plc P2E$20 90 Woco Tope W 08 $22 78 Orcolol Plc P2-B$29 76 Bycd Po4 Tcinc $26. 64 Reococj SpoedI $24 114 Bycd P04 TcIol $48 74 TL Peco Spec $29 78 Ococc J2P Sock $48 62 Skycookel XP5P-1 $20 80 Siec0,oSoE DIV $22 6$ Roo,ko Norricoce $24 117 Golko DiV 80, $39 74 Rep SeoBee An $26 10$ SikocS2tAcopIc $39 80 Gcoo OBE Ace,g $32 80 MorOn 74 T4M-1 $36 * 106 Pipec J2 Cob $49 7$ 9-Pogo 0400 Eocc $28 98 Lock Hodoon B,, $26 18804on 4 62Gro, P6P HelIcal $28 71 L 77000ng t17GPoI$29 640 7 103 Boo 0170 P01 $49 688 68 WeelI WhiInniod $24 72 C 68 Beecho Bo,oeoo $26 OR 2 YRS 8 00 ADO 68 Ryoc Nov10,$26 PICT MANT MORE TO COME15, P BY CE OR MO 1208 PINE PLANS MASOLO MODELS PLANS THEY START AT 49c * LISTS AS E 09 25 Add 18% 10611 Ode Eon 5hppng o,d cc perhaps rudder spring Al glider flopper mechanism might serve basis timer-starter trigger like big-time FAI power fliers use since escapement projects beyond edge case wouldnt ditTicult invent own Other applications Wakefield auto-stab-rudder delayed prop release Wake Coupe P-30 props retractextend mechanism scale model landing gear zoom-launch aileron other control A2 towline gliders currently out fashion due comebaclc innumerable etceteras choice Bob Meuser 4200 Gregory SL Oaklan4 CA 94619 FF Old Timers/Haught continued page 54 Plug plug Theres good news have having difficulty obtaining good spark plugs Replica Engines 14600 Ram stad Drive San Jose CA 95127 offering Japanese NGK brand ME8 plug $500 plus postage ME8 32-thread plug thread reach Champion V-3 makes usable smaller engines requiring shorter plug will functionjust fine replacement Champion V-2 example have well made performs OK electrodes heavy duty like Remco older racing plugs Spark plugs normally have long life often damaged crackups simply lose seal due age little maintenance form good cleaning household ammonia will improve service life Clarence Haught Rt 5 Box 16 CoeurdAlen ID 83814 FF Sport/Scale/Warner continued page 55 aluminum tubes make repair easier storage simpler addition movable control surfaces though bit time-consuming building will make life ever much easier get flying stage double line 1/16 sheet light along aileron rudder elevator separation lines ribs cut fit either side will prove easier install might think can added cutting out part ribs crosses after structure built Use 1/32 scrap keep little space between parts clearance Take em out later hinges use thin beer-can aluminum atleast wide Thin weak wire narrow aluminum strips easily knocked out adjustment will trouble help Shopping balsa can help keep strength belongs getting too heavy Pick out sturdy medium balsa main front-toback fuselage members longerons take load wound motor Leading trailing edges too should too weak Medium weight will Spars wing should medium-hard balsa stringy type does snap cleanly broken model have selected has no spar flush top ribs try couple 1/16 sq strips up keep wing warping upward tissue shrunk Some feel give lift through turbulation effect too Light balsa can used fuselage struts uprights save weight except area wing attachment front end strength important tail medium main spar horizontal stabilizer vertical tail medium balsa rest lightest balsa can lay hands should Making two parts Vt thick better sanding airfoil section can done getting too heavy good idea especially stab less 20% wing area Some designers automatically enlarge area tail pieces over-scale about 10-15% 116 Model Aviation FREE BROCHURE PACK $150 AL DUES $2500 EAA CUSTOM TUNED ENGINES COMPETITION CCESSORIES Special GV 014 X 60 solid lines $295 ppd custom needle valves racing wheels quick fills fuel shut-o Ifs rs detailed brochure send 25 cents Kustom Kraftsmanship Box 2699 Laguna Hills calIf 92653 Ph f714 830-5162
Edition: Model Aviation - 1980/03
Page Numbers: 54, 116
OLD TIMERS Clarence Haught CHANGE pace Just few years ago contest entries old-time rubber-power classes minimal best Often trophies official scores Happily today situation improving more modelers discover joys rubber models possible reasons including increased difficulty finding original ignition engines flying condition high cost ignition engines new used conversions withstanding noise factors balky engines dead batteries vibration failures just plain oil mess over everything points hits home perhaps youre ready rubber power Old-time rubber flown two categories cabin stick Cabin self-explanatory stick doesnt refer motor stick-fuselage typified toy store ROG fliers Stick oldtimer refers built-up fuselage having cabin structure possessing minimum cross section area determined squaring fuselage length dividing product 200 Thus 36-inch fuselage 36 X 36 divided 200 would have minimum cross section 648 sq plenty good model designs available suit fancy Several published old model magazines Zaic yearbooks JohnPond PO Box3215 SanJose CA95156 has list old time rubber-towline plans available 75 cents addition published plans several kits market Midwest Gollywock Jabberwock Comet Sparky 4-Ks Korda Wakefield P&Ws short kit Korda name few good strip rubber becoming available after few lean years old timers quite dependent high energy rubber good performance Wakefield Coupe dHiver P-30 limited maximum motor weight 40 grams Wakefield 10 grams other two classes old-timer can use what needed long does become selfdefeating terms uncontrollable torque excessive model weight freedom use little rubber eliminates need packing maximum winds thus prolongs rubber life well reducing model damage bursting motors FAI Model Supply PO Box 3957 Torrance CA 90510 provides good product under FAI brand well stocking the~ new Pirelli strip rubber modelers getting good results Out Sig Sterling rubber long life good performance good rubber lubricant must Some old cooked formulas excellent have found mixing equal parts glycerine surgical jelly thinned slightly water hard beat cleans up easily water Trimming rubber model quite easy may build up power gradually until model performing satisfactorily However must kept mind rubber motors begin weaken after repeated use mislead making adjustments corrections will com patible new stronger motor Its best make up several motors change after two three flights allowing used motors rest week two before using again Motor size largely matter trial error six eight strands3 to4 loops 3/16 inch good starting place motor length should about 1 times distance prop hook rear peg Short motors tend have too much initial power burst Long ones produce lower power longer runs cruising climb Long motors can bunch up end run affect center gravity tensioner braiding strands will prevent Flight trim adjustments should separated climb glide Rubber models seem climb best right power trim should accomplished thrust adjustments Downthrust stall under power assuming correct CG placement side-thrust controlling turn Glide trim can corrected incidence changes rudder tab models flown right under power against left rudder tab provides left turn glide helps hold up right wing during climb old-time rubber designs did employ folding props using free wheelers instead Free wheeling props add drag sight prop ticking over model glides landing heartwarming experience Folding props efficient glide malfunction can really upset glide trim rate youre stuck whatever original design called No substitutions allowed Either way say prop carvingbuilds character can find ample information subject 1935-36 1737 1938 Zaic yearbooks Give old time rubber try Its great change pace Continued page 116 Beautifully built Lanzo Stick Ray Factor uses IL ssranos oi z rubber time perio4 fuselage model minimum cross sectionalewprpar n uirement length squared over 100 stick maximum lengthfuselage high placed stab potent looking prop marked designers squared over 200 dig Jerry Bockius picidealistic approach Photo Jerry Bockius 54 Model Aviation meet 16-year-old John Seymourtook second against Open fliers flew excep tionally good flying 02 So Long Original So Long contemporary Buzzard also out Chicago area H Murphy photo ahiIl Clodhopper CIA meet held WPAFB Dayton OH High lights deceive streamlined fuselage contaur enhanced full planking Remarkable its day Clodhopper Wakefield champion im mediate prewar period Pic H Murphy EAA members receive SPORT VIA TION magazine EXPERIMENTAL AIRCRAFT ASSOCIATION INC PO Box 229 Hales Corners Wisconsin 53130 EXPERIMENTAL A SSOCIATION issue Homebuilders Corner ers Editor Line Headquarters involvement 80 osh 79 Energy Ultralights osh Awards 79 Chapters Action tplane Builder on Accent nes Oshkosh a Over Oshkosh Jim Theis Nighthawk Pegasus. Grand Champion Thoroughbred Glanville Skymaster osh 79 Custombuilts rve Grand Champion Humbug osh 79 500 Bowers Baker-Faick Competition etitor Flying L-B-F 500 Members Are Building ng Flea ndar Events Washington Report SpecialSPORT AIRCRAFT YOU CAN BUILD$495 pp CLEVELAND GIANTS ds Largest Gas Plans Assortment 86 C-D GIANTS OVER S MOST EVERY IMAGIN TO 10 NOW AVAILABLE ABLE TYPE PLANE AND 140 Others n Ga 5,IN MANY SCALES9t. 6#/ooo C6 Cob, 526 69L,dkeg NT-211 $24 .. 64 teed C17E SMg $36 91 Li,dbege N0-211 $36 W 96 Beech C17-B Soo$49 61 AEG OIV LI Bo, $24 82 Lock II Elec,$32 10$ P0 ci P019 T$49 t4 SEc,, T/W SE-7 $24 68 Joolce oJU88 to, $24 126 Sjoon T/W $87 $22 66 PIo,oo B ood W29 $20 59 EciDol Plc P2E$20 90 Woco Tope W 08 $22 78 Orcolol Plc P2-B$29 76 Bycd Po4 Tcinc $26. 64 Reococj SpoedI $24 114 Bycd P04 TcIol $48 74 TL Peco Spec $29 78 Ococc J2P Sock $48 62 Skycookel XP5P-1 $20 80 Siec0,oSoE DIV $22 6$ Roo,ko Norricoce $24 117 Golko DiV 80, $39 74 Rep SeoBee An $26 10$ SikocS2tAcopIc $39 80 Gcoo OBE Ace,g $32 80 MorOn 74 T4M-1 $36 * 106 Pipec J2 Cob $49 7$ 9-Pogo 0400 Eocc $28 98 Lock Hodoon B,, $26 18804on 4 62Gro, P6P HelIcal $28 71 L 77000ng t17GPoI$29 640 7 103 Boo 0170 P01 $49 688 68 WeelI WhiInniod $24 72 C 68 Beecho Bo,oeoo $26 OR 2 YRS 8 00 ADO 68 Ryoc Nov10,$26 PICT MANT MORE TO COME15, P BY CE OR MO 1208 PINE PLANS MASOLO MODELS PLANS THEY START AT 49c * LISTS AS E 09 25 Add 18% 10611 Ode Eon 5hppng o,d cc perhaps rudder spring Al glider flopper mechanism might serve basis timer-starter trigger like big-time FAI power fliers use since escapement projects beyond edge case wouldnt ditTicult invent own Other applications Wakefield auto-stab-rudder delayed prop release Wake Coupe P-30 props retractextend mechanism scale model landing gear zoom-launch aileron other control A2 towline gliders currently out fashion due comebaclc innumerable etceteras choice Bob Meuser 4200 Gregory SL Oaklan4 CA 94619 FF Old Timers/Haught continued page 54 Plug plug Theres good news have having difficulty obtaining good spark plugs Replica Engines 14600 Ram stad Drive San Jose CA 95127 offering Japanese NGK brand ME8 plug $500 plus postage ME8 32-thread plug thread reach Champion V-3 makes usable smaller engines requiring shorter plug will functionjust fine replacement Champion V-2 example have well made performs OK electrodes heavy duty like Remco older racing plugs Spark plugs normally have long life often damaged crackups simply lose seal due age little maintenance form good cleaning household ammonia will improve service life Clarence Haught Rt 5 Box 16 CoeurdAlen ID 83814 FF Sport/Scale/Warner continued page 55 aluminum tubes make repair easier storage simpler addition movable control surfaces though bit time-consuming building will make life ever much easier get flying stage double line 1/16 sheet light along aileron rudder elevator separation lines ribs cut fit either side will prove easier install might think can added cutting out part ribs crosses after structure built Use 1/32 scrap keep little space between parts clearance Take em out later hinges use thin beer-can aluminum atleast wide Thin weak wire narrow aluminum strips easily knocked out adjustment will trouble help Shopping balsa can help keep strength belongs getting too heavy Pick out sturdy medium balsa main front-toback fuselage members longerons take load wound motor Leading trailing edges too should too weak Medium weight will Spars wing should medium-hard balsa stringy type does snap cleanly broken model have selected has no spar flush top ribs try couple 1/16 sq strips up keep wing warping upward tissue shrunk Some feel give lift through turbulation effect too Light balsa can used fuselage struts uprights save weight except area wing attachment front end strength important tail medium main spar horizontal stabilizer vertical tail medium balsa rest lightest balsa can lay hands should Making two parts Vt thick better sanding airfoil section can done getting too heavy good idea especially stab less 20% wing area Some designers automatically enlarge area tail pieces over-scale about 10-15% 116 Model Aviation FREE BROCHURE PACK $150 AL DUES $2500 EAA CUSTOM TUNED ENGINES COMPETITION CCESSORIES Special GV 014 X 60 solid lines $295 ppd custom needle valves racing wheels quick fills fuel shut-o Ifs rs detailed brochure send 25 cents Kustom Kraftsmanship Box 2699 Laguna Hills calIf 92653 Ph f714 830-5162