U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL
Edition: Model Aviation - 1976/09
Page Numbers: 4, 5, 6, 7, 8, 79
U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL
Edition: Model Aviation - 1976/09
Page Numbers: 4, 5, 6, 7, 8, 79
U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL
Edition: Model Aviation - 1976/09
Page Numbers: 4, 5, 6, 7, 8, 79
U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL
Edition: Model Aviation - 1976/09
Page Numbers: 4, 5, 6, 7, 8, 79
U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL
Edition: Model Aviation - 1976/09
Page Numbers: 4, 5, 6, 7, 8, 79
U free F1jt OVER THE three-day Memorial Day Tom Scully cuts loose huge Satellite fo weekend Taft CAself-proclaimed Free test flight darkness approaches Rules ht Capital Worldhosted lowed either 15-sec engine runs VTO/ROG sixth running US Free Flight 12-sec hand-launch Most took latter Championships Second Nats Free Flight big Taft meet held over Memorial Day weekenddrew 301 contestants 71 5 entries statistics alone rank meet greatest regularly held free-flight meet world second US Nats An AAAA sanction first ever allfree-flight meet 35 events 175 trophies plus six championship awards 301 con testants 715 entries However participa tion events equal less previous years Participation Juniors has decreased markedly events showing marked increase Old-Timer events temperature peaked low mid-eighties some 10 degrees lower normal sky usually clear occasional slight overcast Thermals descriptions made appearances time another seemed small diameter rather severe Drift ranged zero up two three miles model DTed time Dust devils promenaded Tent City hour hour just demonstrate superiority over new-fangled plastic tent stakes As usual delight Firing up 02-powered Brooklyn Dodger Glen Schneider Scale-down Old Timers creasing popularity Durable easy fly 4 Model Aviation Only corpulent prop gives away rubber-powered bird Ray Berens 48-in General Skyfarer flies 18 strands Sig rubber Text Photos Bob Meuser chat piotmhips collecting loose bits modeling gear wing timed mm 30 sec Taft situated northwest corner rather flat valley low-lying hills north peter out right edge field immediate west lie small steep hills followed mountains Coast Range mountain range south some 15 miles distant practical purposes valley extends infinity toward east drift Left Ron Wittman first break 1 1/2-mm barrier hand-launched glider took second placefor second time Right have notions about what modern rubberband toy airplane should look like guess again IrY Akers Wake typical sort flown World Champs competition Below Sal Taibi holds OS Max 25-powered Alert designed Michael LaTorre Entered B-Pylon Old-Timer class model went out sight straight overhead after plc snapped usually toward south west occa sionally toward east almost never toward north camping launch ing area dead flat clear sur rounding terrain criss-crossed ditches pipelines sagebrush roads trails start nowhere go nowhere railroads like despite such hazards navigation modelers cope quite handily foot motorcycle oc casionally bicycle Above Bob Deshields watches other models evidence thermal activity ready light DT fuse Southern Cal HL competition tough hazard ponds tanks con taining mucky goop sort another Fortunately mucky-goopers have leaned environmentalists suffi ciently induce cover tanks screens order inhibit demise such endangered species Califor ma Condor FAI-Power Model Ken Oliver tested system plopping super-sleek model onto screens few anxious mo US FF Championships ments managed fish off long pole bit twine Two prototypes new Cox Schneurle-ported 40s appeared meet schnoz Vic Cun nynghams own-design Sirrocco 1100 won Night Flying event other installed engine room Doug Galbreaths Bellinger-designed Gysob won Class C Gas event set new AMA national record half-dozen Superb models Gas Scale event 45-in electric-powered Gotha Taube LE4 Bill Stroman Flew beautifully power events held under 1975 AMA rules permitted either 15-sec engine runs VTO/ROG launches 12-sec engine runs hand launches Given option modelers opt latter After first three flights flights hand launched engine runs decrease progressively under 1976 rulesand national record purposesall flights hand launched shorter engine runs Galbreath took first three flights VTO long engine runs decided try record got record after 14Y2 5-mm max flights counting three put up VTO launches Including VTO launched flights score would also have record under old rules Dougs Cox 40 turned its 10-in Graup ner prop 19500 rpm Thats four times fast table saw turns its 8-in blade slightly sharper Graupner blade Cox puts out four times power too think Ill stick Pennyplanes Some came fly just watch few didnt plan way thats way things worked out Ed Lidgard pronounced li-jard lid-guard designer rubber-powered Hi-Ho early 40s among others made trip Bob Wilder Irving TX fellow manufacturers super-neat indoor outdoor rub ber winders torquemeters towline winches Wilder examining appreciative yet critical eye latest winding machinery used Bob White Bob Piserchio Carl Goldbergperhaps greatest free-fighter everwas watch too Carl has moved CA intent having some fun maintaining active role business Carl Sal Taibi talked good old days Carl no means living past Carl wanted take crack hand-launch gliders again trying get fix really significant differences between better models early 40s present winners wasnt easy nail Clarence Mather tough beat rubber event launches Nesmith Cougar Peanut Such 1 3-inchers have flown B mm Blowing bubbles Bill Hunter Satellite de signer demonstrating thermal detector market ed byTarco Called Super Bubble Factory down feature seemed signi ficantly different could find notable exception Sal Taibi leans toward Old-Timers addition current AMA-Power events doesnt confine activities replicas own old designs showed handsome replica Michael La Torres Alert powered OS Max 25 entered B-Pylon put up big thermal lost out-of-sight straight overhead Hal Cover some long flights too old-timer Sky scraper53 mm base hills some 15 miles south earlier flight 23 mm managed recover aircraft No wonder parachute DTs never really became popular Midway through morning Wakefield competition Les DeWitt rolled up ho hum ready fly Wake discovered event being flown rounds 10 mm left Round took team effort get him registered processed time course no time test flight Despite bad start won event lack supply good rub ber over past few years has forced some modelers drop out rubber-power events things now looking up Accord ing several top rubber men rubber now being supplied FAI Model Supply pretty fair stuff regards both its energy output its wearing qualities As flier put equal average Pirelli good best Pirelli new FAI Model Supply material confused supplied some time ago younger Xenakises seem have cornered market A/l event Greg Xenakis older kid won event 1974 setting national record still stands Bill Xenakis won 1975 repeated performance year flying venerable Tadpole Although circle-tow hardware light enough A/ 1 available apparently no used Circle tow used extensively A/2 event apparent didnt really know what doing hadnt practiced under types weather conditions better off Some circle-towed right ground turbulent strong breezes A/2 two made flyoffs 1975 World Champs team member Bob Isaacson Craig Cusick first flyoff Bob went up circled twice zoomed off boomer Cusick started up model fall off line about 10 ft up towed up again immediately released what first looked like marginal air turned out good maxed Bob suggested that would accomplished continuing would lost damaged models suggested next flyoff delayed until evening Cusick agreed next flyoff turned out last neither conCarl Goldberg checks out Fred Emmerts Comet Clipper designed Carl thirties Cometpowered job first B-Cabin Old Timer testant making 5-mm max Cusick trailed Isaacson 31 seconds big news A/2 event however Tom Round Man Hutchinson captured third spot 18 sec out flyoffs Tom display recently kitted Ultimate Dragmaster looks good big event course Indoor Hand-Launch Glider event think Im leading great big brag absolutely correct 1974 events first running top four positions taken Lee Hines Bob Meuser Ron Wittman Bob DeShields win ning two-flight total 587 sec Thats pretty fast company Old Man Meuser hadnt particularly distinguished him self previously sort HL Glider competition Hines Wittman have tossed both low- high-ceiling Models carrying electric chemical lights wove strange patterns night sky Jon James blasts through dust raised propwash Diogenese Thomas mans Coleman lantern Struggling max turns Coupe dHiver rubber model Bruce Hannah Jr After 3 dsys tough competition Grand Champion September 1976 7 US FF Championships records back forth Wittman cur rently holds high-ceiling record De Shields has consistently done well outdoor competition Southern Cal competition tough gets Last year Hines again won score 605 sec followed Wittman DeShields Meuser During practice session unusually large number excellent models evidence did poorly practice half notion skip event wanted enter Pennyplane event going simultaneously another build ing decided take whack Inasmuch air seemed good during practice session could get worse since other things elected get agony over take nine allowed flights quickly possible pull-out launch terrible lost third fourth available 22 ft sinking speed seemed slow somehow managed get three flights over 30 seconds leading left half-time practice break others just beginning get feel things scarcely ex pected place came surprise later discovered score 620 sec beaten Ron Wittman placed second followed newcomer Bob Boyer Phedon Tsiknopoulous exceptionally slow-flying machine order Lee Hines rare days did everything right nothing went right Junior age group Steve Wittman upheld family honor winning third time followed youngest Geraghtys Jimmy Eric Dyer later receive Junior Sweepstakes award Pennyplane event learned dont win low-ceiling indoor events model tuned high-ceiling flying merely backing off number turns put motor finished third place full mm behind last years 8 Model Aviation Doug Gaibreath gives Bellingerdesigned Gysob mighty heave String 14 maxes gained him new record Powered prototype Cox 40 winner Clarence Mather Second place went old-timer Earl Hoffman John Magnus has Junior Senior Indoor records credit took fourth Mather also won Easy-B again Hoffman close behind Mark Val anus Houstonhe Grand -National Champion 1974 Natsin fourth slot Outdoor Hand-Launch Glider com petition chucking glider low thermal essential foolish less the rules allow order accomplish ways detecting thermals sure-fire way getting launch model next model already thermal Normally result everybody tries get down wind body else event everybody other event too puts some suburbs Maricopa Thats little joke see Maricopa lying just south Taft doesnt have urb let alone suburbs year HLG fliers penned up small region upwind other events re quired fly small specified area over Bill Blanchard record holder event walked away top spot does regu larly whats makes look easy others somehow manage acquire appearance desert rats before leave comfy motels Bill after day running around over damned desert still manages look just come assign ment model some detergent ad Scale events included both indoor outdoor Peanut Scale Outdoor RubberPower Scale Gas Scale Brick Brick ner took Gas event large Taylorcraft complete full interior detail including scale copy Model Builder magazine seat Bill Stroman flew electric-power Taube featured continued page 79 Jetex-powered rocket model launched neatly Steve Mounsey Holds National Jr record Vet-Tube II designed Richard Wood Releasing Matherdesigned Pennyplane 5-mm flight John Magnus holds indoor records Both Pennyplane Easy-B flown FF Champs/Meuser continued page 8 June issue Model Builder flew beautifully Mather Warner tried level best lose Peanut Scale mcdels thermals Warner put up least flight around five mm Other names such Cover Moss Mulligan promi nent winners lists three scale events also wonder leg being pulled see M Mulligan top list Indoor Peanut Next theyll trying tell Mister Mulligan flying peanut-scale model Bill Warner Night Flying event routine contests arranged Southerncali forniacs might seem bit strange used conventional after-sun down pursuits frequently make seem easy chemical light semi-haywire arrangement batteries wires lamp bulb taped rubber-banded onto fuselage con ventional Gas model usually large B C-class model gasoline lanternor per haps snazzier cordless electrics raises local environment slightly above threshold visibility flier rest conventional competition free flight chaser timer best can said chances contracting sunstroke extremely small Xenakis kids hooked chem light hand-launch glider worked out reasonably well should pardon expressiona radio controlled Old-Timer model out try ing its thing under worst cir cumstances Maybe could hold entire Nats night quiet meet change No blaring radios few motorcyclists demon strated cleverness making noise kicking up dust nobody got Hot Stuff eyes severe lacerations prop nobody sank gurgling quick sand ponds surrounding local kittylitter works scarcely anybody reported loved being eaten rattlesnake Actually sort dull such extra curricular aspects cant win em all. RO KWIK- FILL FUEL PUMP 4c- EI Du NEW CONCEPT IN FUEL PUMPS ONE MOVING PART NOTHING TO BREAK OR WEAR OUT ONLY $1A95 IL No191 iIiUrn LIGHT COMPACT AND RUGGED PUMP IS ONLY 2 WIDE AND 2-7/8 IN DIAMETER HAND OPERATED AND REVERSIBLE PUMPS IN AND OUT HIGH VOLUME FLOW ATTRACTIVE BLACK PUMP COMES ASSEMBLED AND MOUNTS ON GALLON CANS QUICK EASY INSTALLA TION PUMP COMES COMPLETE WITH STEEL MOUNTING BRACKETS HARDWARE AND FUEL TUBING DU-BRO PRODUCTS INCORPORATED 480 Banner Road Wauconda Illinois 60084 TANK FILTER Combination weight filter Designed fit clunk tanks Made sintered bronze give ultimate filtering No 16198c Tercel/Trostle continued page 31 little work small penalty weight models can made look good full-scale stunters tank shown large enough give engine run well over 8 mm may desire make tank rter keep engine run within 8-mm limit have measure fuel flying competition uniflow tank shown plans has given very satisfac tory performance flap/elevator movement ori ginal model first set up one-toone ratio During flight testing large flaps appeared create excessive drag during maneuvers flap/elevator movement changed two-tothree ratio shown plans works better flaps smaller deflec tions appear increase lift sufficiently square corners building up ex cessive drag original Tercel con structed adjustable elevator horn using Du-Bro Swiv-Link has worked satisfactorily after flights have found adjustable flap/eleva tor ratio elevator trim capability allows adjustments fine tuning can im prove flying characteristics stunt model balance point should further aft position shown plans model very sensitive balance point Ifyou arewantingto useyourmodel trainer learn stunt pattern funda mentals forward CG location recommended leadout positions shown plans satisfactory wind conditions would want fly though might want use some method adjust leadout positions have used Cox handle recom mend line spacing handle 1 less experi enced fliers line spacing 11/4 1 recommended Cox TD en gine 6-3 Cox gray prop running September 1976 79 kill FUEL TUBING Quality tubing Fuels High heat FEET specifically com pounded Gb resistant noncollapsible No 162 9cL