Duralion f0 Bob Meuser GYSOB It has around now some eight years Ed Bellingers prototype its still half cured epoxy finish still flying taking trophy now again Despite few have built models arent kitted published built large numbersit has man aged accumulate rather impressive track record West its July 1976 issue however Model Builder magazine presented construction article about Gysob should seeing few full-size plans order No7763 M B Plans Service 621 West 19th St Costa Mesa CA 92627 Price $400 3rd Class postage paid plus 45 1st Class postage plus 6% California resi dents Recently former FAI Power team member Doug Galbreath decided try some big stuff acquired prototype Cox 40 elected use Gysob pur pose applied few FAI-Power standard tricks ran off both Category Category II Class C records Doug uses timer-operated auto-rudder auto-stabilizer set-up typical FAI Power models re-trim model after power cuts Doug claims trimming big over-powered machine like auto surfaces easier trimming Half-A mentioned Doug llj 4--lz tried sell local FAI Power flier virtues silence electric propulsion responded Man dont make lotta noise aint no fun Doug allowed lot truth hear racket feel tug hot 40 really know have couple hands full horsepower Doug incidentally wears Mickey Mouse ear protectors sensible power fliers nowadays Doug claims flying big Gysob has fun total previous modeling experience has put up around 150 flights Gysob burned out about five special Cox glowplugs process leaned out too much has flown flights using same prop fiberglass replica Graupner 50L HT 4 SIDES9 4 SHTHT pI\J~Q16QSPII Ed Bc/lingers848 C/a3s Ctcords Cat land if_________________ bjf Doug Qaibreath_____ 36 Model Aviation I Above Here turning loose Cox 40 Gysob its record flights see text Doug Galbreath has around 150 flights model Right New Cox 40 yet released powered Gysob two Class C free-flight records 85 /5 71 uLtmn2Ax II LEE HINES 71 K7II -1 EEZ7 I7/5 K ZZ ii 10-4 molded Roger Simpson Cox burns 50%-nitro fuel much other junk scarcely space left alcohol Still repeated teardowns engine have indicated still essentially new Dont line up front local hobby emporium buy Cox 40 quite yet Cox writing has yet scheduled release date Boeing Meet July 9 10 modelers least midlin amused pro spect getting healthy portion job-training expenses paid Estab lishment will converge Boeing Aero space Center Kent Wash eighth running annual event sponsored Boeing Management Assoc Prizes top places run around $1000 $250 towards winners education ex penses Anyone 18 under eligible bring Big Brudder 01 Man along too Open classes too already over hill contest has traditionally Free-Flight biased events Control-Line Rocket also catch-all called Special P/30 Event Nats now official unofficial P/30 outdoor rubberpower event will held 1977 Nats According John Oldenkamp originators event sponsored San Diego Orbiteers trophies will awarded through fifth place addi tion will Junior High Time Award Ladies Cup about time read event will included bill-of-fare US Free Flight Champs later year Model Airplane News magazine will celebrate tenth anniversary Dave Linstrums editorship its VTO column means Postal International P/30 Proxy Meet Entries may submitted Nats mailed Peck-Polymers Rules follows No dimension may exceed 30 inches Model must propelled t unaltered 9-in commercial plastic 8 prop presume smaller props would allowed Rubber weight must Maa oer /47 4-h4/e scr exceed 10g max 3 minutes first blush would seem 9in Peck Vintage Aero prop 30-in model probably fairly high aspect ratio would just ticket might well depends unpredictables such weather large model will stay sight longer small example However 9-in props weigh 66 g seems bit much relation 10 g rubber allowed think Ill 2 rnn k 4 7 Sn- plastic 1 2 1 opt 8-in prop weighs 47 grams doesnt go upstairs fast enough can always replace 7incher weighs mere 3 g indicated three-view optimum perform ance model exclusive prop rubber shouldnt weigh much 10 grams order have model will withstand rigors sort bumble-thumbing span must less Continued page 58 ij1 2sq3 iS 22 -43 IT14 eov bottom. 8 sides 10 June1977 37 Lee Hines record-setting Ultimax Improved version 3-view Bill Booth photo FF Duration/Meuser continued page 37 allowed 30 inches 21 inches seems about right guess probably good construction should reasonably simple layout should fairly conventional design should ugly poor taste inconsistency line form permit design based rock-solid principles presented three view Right-thrust used get right turn under power kits market satisfy rules might com petitive Pecks One-Night 28 Sigs Mini Maxer Tiger Cub Thermal Dart name few New NFFS Officers National Free Right Society has acquired three new offi cers After serving editor Free Flight NFFS Digest longer two previous editors am turning over cutting pasting wise-cracking Keith Vamau 4147 Wilson Ave Castro Valley CA 94546 Keith age 32 has elementary school teaching credential currently going college driving bus took fourth 1967 Nats behind Hines Miller Cailliau highceiling Indoor Hand-Launch Glider Hell needing material way club newsletters photos individual contribu tions probably can use some help drafting jobs Bill Booth Jr takes over MemberAero-Foam Paints Pactra Industries Inc has new line Aero-Foam paints specialty form ulated produce lightweight high-gloss fuel-proof finish flying model aircraft fea turing foam wings fuselage parts Aero Foam works equally well plastic balsa metal parts colors plane same color will match perfectly 10 colors 4 oz Brush ingand8matchingcolorsin l3oz Spray cans Pactra Industries Inc 7060 Hollywood Blvd Los Angeles CA 90028 productreviwproductreviwproducrviewproductrviw ship Chairman Doug Galbreath Doug will continue doing printing mailing However Bill recently married hasnt settled down permanent address writing meanwhile better continue address membership problems Doug Keeping dues pay ments address changes sorted out difficult time consuming often thankless job guy talk wish join society complain Digest got lost mail forgot pay dues forget tell him moved Arlene Hannah goes around Bruce Hannah Jr replaces Barbara Par sons manager NFFS Supplies good source nifty free-flight specialty hardware items arent nor mally stocked local hobby empo rium Send stamped self-addressed enve lope price list NFFS Supplies 9525 Achates Circle Sacramento CA 95826 Rumor has Executive Director Hardy Brodersen manager NFFS Plans Publications Larry Jordan seeking replacements Any sug gestions Towline Glider Record Lee Hines decides bear down particular phase free flight things happen bit over decade ago bore down Indoor HL Glider Until recently hasnt very active modeling although designed Sharkie towline glider helped Dennis Bronco get Nordic Glider team few years ago Recently decided bear down A/2 towline gliders result rather impressive list top places Southern California com petition event isnt exactly casual recently captured national record event record set Lees oldest bird Ultimax according Lee flutters high launching speeds 15 grams overweight has excessive dihedral dumb looking nose several other flaws Despite its flaws made 43 maxes out 47 official flights made eight contests during 1976 although Lees newer improved Ultimax II flown often Ultimax II easier handle during circle-towing can circle tighter spinning permits higher launching speeds flutter using 6-lb un latching force setting has better still-air time due its light weight accu rately shaped leading edge better stall recovery due lighter tail components greater wing-tip wash-out has less dihedral December 18 day record flying conditions incredible Because smooth light thermals low drift rate 8-mm flight drifted about 200 yds Early flights light lift hung around required three minutes out gaining altitude Lift increased during day produced several 10- 20mm flights Seelig timer set 7 mm Lee can get out Finally thermal activity simply quit 3 pm Lees last flight 315 came down 228 Lees record 3208 seconds consisted 12 consecutive flights increasing maxes last 5 plus final flight 228 Full-size plans Ultimax II may obtained sending $3 Lee Hines 767 Scott Place Apt 2 Costa Mesa CA 92627 RubberKit ScaleSource Gene Dubois Continued page 86 Remocall Anyone frequency model lost weeds woods Need range check Forget turn off trans mitter little 1 /z longl gadget provides solutions familiar everyday prob lems Plug unused channel walk field turn receiver transmitter off will let know someone frequency Plug airplane weighs less 1 oz down weeds etc will set up clearly audi ble signal can hear several hundred feet away Handy checking range warn turned x-mitter Price $2495 Model Rec tifier Corp 2500 Woodbridge Ave Edison NJ 08817 58 Model Aviation Flyline Models producing famed Earl Stahl designsthis 28-in Rearwing Speedster Nicely detailed Peanut Scale PT-iS built Gene Duboms Models kit Peanut booming FF Duration/Mouser Continued page S8 Models far one-man basement opera tion carries nice line models Top line 28-in Gere Sport FE single-channel RC rubber electric gas power Mainstay line however line Peanut Scale models far includes Gere Sport P-47D P-19 Army Air Force trainer Grumman Hellcat Other models hardware items such balsa stripper works Gere Sport kit examined seemed good quality Printed sheetwood C-grain correct hardness stripwood uniform nicely cut Hardware includes plastic prop thrust button vac-formed scale wheel halves four em plastic windshield material wire parts Tissue top quality Nose opening bit small liking could easily enlarged Plans appear adequate accurate Price Peanuts $375 plus 75 handling 5% tax Massachusetts residents hobby shop doesnt stock order direct G D Models PO Box C Acushnet MA 02743 Send stamped self-addressed envelope price list Bob Meuser 4200 Gregory St Oak land CA 94619 RC Sport/Van Putte continued page 19 Astro Flight RC System AnalyzerRapid Charger excellent product am pleased recommend subject products Id also like mention motor mounts produced C B Associates Bob Seigel koff sent two 60-size mounts examination excellent backs engine mounting areas machined beautifully thrust line perpendicular back mount honest zero-zero engine setup easy obtain pressure sand-cast mounts guaranteed replaced ever break tough looking doubt have re place very letter Richard Neveln Berkeley California suggested way handle problem trophy hunters competing classes lower should sug gestion have score determine class belong group would have maximum number points per flight eg 1000 points Novice 1500 Advanced 2000 Expert un limited Masters Everyone would have same maneuver list contest ants would maneuvers could certainly would tend eliminate trophy hunter problem continue haunted what happened few years ago contest run just way seems leading Class now called Novice competition GloBee Stinger cordless self-contained AA starter delivers over 100 starts full charge freeing modelers burd en hauling around heavy separate battery its dangling wires Two 2 VDC recharge able lead acid cells included power 9000 rpm motor 5000 rpm under load enough flywheel action start cranky engines Its resilient drive cup adapts vari ous engines 010 051 cid black high-impact case fuel-proof fluted firm grip Integral flywheel shroud protects motor shaft bearings casual side thrust damage Anti-roll flange also serves finger stop Coaxial type recharge jack pre vents improper terminal connections Match ing 45 VDC charger also available Parts replaceable easily accessible unit sepa rates two halves few screws removed Measures 1 1Ax 1% weighs about 28 oz Introductory package price $3995 both starter charger together batter ies included Fusite Division 6000 Fernview Ave Cincinnati OH 45212 produotreviewpreductrviewproductrviewproductreview last flight too good went top class bottom next us always discovering new different ways use cyanoacrylate ad hesives like Hot Stuff Zap Jet Fast Bond etc Since am no exception Id like share couple Just recently building new sport airplane preparing triangularly shaped rudder balsa grain chosen parallel hinge line ex posed grain angle back rudder couldnt seem get fuzz sanded smooth laid down trail Hot Stuff along edge took couple licks sandpaper elimi nate fuzz last two years have pre paring balsa skins foam wings using cyanoacrylate adhesives prepare dividual sheets cutting will overlap about half inch completed skin rolld foam core edges butt-glued together sanded eliminate gaps turn sheets good side down hold together masking tape turn sheets over apply lipe cyanoacrylate joint tape peeled away will see good side should down taping because adhesive will come off tape stick balsa cyanoacry late hits Thats no problem because youre going put contact cement anyway reminds technique use foam cores wing skins may like try wing core skins ready give coat either polyurethane varnish shellac Both completely compatible poly styrene foam will hurt way reason coating core wing skin keep contact cement penetrating Since con tact cement surface can make skin stick core whatever penetrates wont good polyurethane var nish shellac core skin keeps contact cement up surface will job sticking things together like its supposed An added benefit coatings form vapor barrier between polystyrene foam harmful finish es may use paint wing va por barriers will keep paints eating up foam happen penetrate balsa skin received letter Jerry Adkins Ypsilanti Michigan idea pat tern competition think has lot merit Jerrys slightly edited proposal follows Have ever thought about what takes competitive todays pattern competition First off have expert flier Next must possess retract-equipped 60-powered bomb cause pattern judges wont recognize anything less good fliers lose con tests because flying ratty looking sport ship instead Phoenix racing boys did cant good sport fliers would like give pattern try dont have rich uncle own stock gold Still fliers arent content see times can go under lim bo people Quickie Pattern two classes competition Sportsman Advanced Sportsman class open anyone has placed AMAsanctioned pattern contest AMA Novice pattern will flown minus outside loop Advanced class open still competing AMA Novice pat tern complete Novice pattern will flown Aircraft limitations Quickie 500type craft similar Spickler 500 15-500 Sweet Stick Falcon 56 etc Max 40-size engine no retracts trike gear okay above proposed rules generalizations rules needed keep simple Lets bring piece pattern com petition back average boys What happened days could fly pattern 3-channel ship void needs filled void ex ists somewhere between advanced 86 Model Aviation
Edition: Model Aviation - 1977/06
Page Numbers: 36, 37, 58, 86
Duralion f0 Bob Meuser GYSOB It has around now some eight years Ed Bellingers prototype its still half cured epoxy finish still flying taking trophy now again Despite few have built models arent kitted published built large numbersit has man aged accumulate rather impressive track record West its July 1976 issue however Model Builder magazine presented construction article about Gysob should seeing few full-size plans order No7763 M B Plans Service 621 West 19th St Costa Mesa CA 92627 Price $400 3rd Class postage paid plus 45 1st Class postage plus 6% California resi dents Recently former FAI Power team member Doug Galbreath decided try some big stuff acquired prototype Cox 40 elected use Gysob pur pose applied few FAI-Power standard tricks ran off both Category Category II Class C records Doug uses timer-operated auto-rudder auto-stabilizer set-up typical FAI Power models re-trim model after power cuts Doug claims trimming big over-powered machine like auto surfaces easier trimming Half-A mentioned Doug llj 4--lz tried sell local FAI Power flier virtues silence electric propulsion responded Man dont make lotta noise aint no fun Doug allowed lot truth hear racket feel tug hot 40 really know have couple hands full horsepower Doug incidentally wears Mickey Mouse ear protectors sensible power fliers nowadays Doug claims flying big Gysob has fun total previous modeling experience has put up around 150 flights Gysob burned out about five special Cox glowplugs process leaned out too much has flown flights using same prop fiberglass replica Graupner 50L HT 4 SIDES9 4 SHTHT pI\J~Q16QSPII Ed Bc/lingers848 C/a3s Ctcords Cat land if_________________ bjf Doug Qaibreath_____ 36 Model Aviation I Above Here turning loose Cox 40 Gysob its record flights see text Doug Galbreath has around 150 flights model Right New Cox 40 yet released powered Gysob two Class C free-flight records 85 /5 71 uLtmn2Ax II LEE HINES 71 K7II -1 EEZ7 I7/5 K ZZ ii 10-4 molded Roger Simpson Cox burns 50%-nitro fuel much other junk scarcely space left alcohol Still repeated teardowns engine have indicated still essentially new Dont line up front local hobby emporium buy Cox 40 quite yet Cox writing has yet scheduled release date Boeing Meet July 9 10 modelers least midlin amused pro spect getting healthy portion job-training expenses paid Estab lishment will converge Boeing Aero space Center Kent Wash eighth running annual event sponsored Boeing Management Assoc Prizes top places run around $1000 $250 towards winners education ex penses Anyone 18 under eligible bring Big Brudder 01 Man along too Open classes too already over hill contest has traditionally Free-Flight biased events Control-Line Rocket also catch-all called Special P/30 Event Nats now official unofficial P/30 outdoor rubberpower event will held 1977 Nats According John Oldenkamp originators event sponsored San Diego Orbiteers trophies will awarded through fifth place addi tion will Junior High Time Award Ladies Cup about time read event will included bill-of-fare US Free Flight Champs later year Model Airplane News magazine will celebrate tenth anniversary Dave Linstrums editorship its VTO column means Postal International P/30 Proxy Meet Entries may submitted Nats mailed Peck-Polymers Rules follows No dimension may exceed 30 inches Model must propelled t unaltered 9-in commercial plastic 8 prop presume smaller props would allowed Rubber weight must Maa oer /47 4-h4/e scr exceed 10g max 3 minutes first blush would seem 9in Peck Vintage Aero prop 30-in model probably fairly high aspect ratio would just ticket might well depends unpredictables such weather large model will stay sight longer small example However 9-in props weigh 66 g seems bit much relation 10 g rubber allowed think Ill 2 rnn k 4 7 Sn- plastic 1 2 1 opt 8-in prop weighs 47 grams doesnt go upstairs fast enough can always replace 7incher weighs mere 3 g indicated three-view optimum perform ance model exclusive prop rubber shouldnt weigh much 10 grams order have model will withstand rigors sort bumble-thumbing span must less Continued page 58 ij1 2sq3 iS 22 -43 IT14 eov bottom. 8 sides 10 June1977 37 Lee Hines record-setting Ultimax Improved version 3-view Bill Booth photo FF Duration/Meuser continued page 37 allowed 30 inches 21 inches seems about right guess probably good construction should reasonably simple layout should fairly conventional design should ugly poor taste inconsistency line form permit design based rock-solid principles presented three view Right-thrust used get right turn under power kits market satisfy rules might com petitive Pecks One-Night 28 Sigs Mini Maxer Tiger Cub Thermal Dart name few New NFFS Officers National Free Right Society has acquired three new offi cers After serving editor Free Flight NFFS Digest longer two previous editors am turning over cutting pasting wise-cracking Keith Vamau 4147 Wilson Ave Castro Valley CA 94546 Keith age 32 has elementary school teaching credential currently going college driving bus took fourth 1967 Nats behind Hines Miller Cailliau highceiling Indoor Hand-Launch Glider Hell needing material way club newsletters photos individual contribu tions probably can use some help drafting jobs Bill Booth Jr takes over MemberAero-Foam Paints Pactra Industries Inc has new line Aero-Foam paints specialty form ulated produce lightweight high-gloss fuel-proof finish flying model aircraft fea turing foam wings fuselage parts Aero Foam works equally well plastic balsa metal parts colors plane same color will match perfectly 10 colors 4 oz Brush ingand8matchingcolorsin l3oz Spray cans Pactra Industries Inc 7060 Hollywood Blvd Los Angeles CA 90028 productreviwproductreviwproducrviewproductrviw ship Chairman Doug Galbreath Doug will continue doing printing mailing However Bill recently married hasnt settled down permanent address writing meanwhile better continue address membership problems Doug Keeping dues pay ments address changes sorted out difficult time consuming often thankless job guy talk wish join society complain Digest got lost mail forgot pay dues forget tell him moved Arlene Hannah goes around Bruce Hannah Jr replaces Barbara Par sons manager NFFS Supplies good source nifty free-flight specialty hardware items arent nor mally stocked local hobby empo rium Send stamped self-addressed enve lope price list NFFS Supplies 9525 Achates Circle Sacramento CA 95826 Rumor has Executive Director Hardy Brodersen manager NFFS Plans Publications Larry Jordan seeking replacements Any sug gestions Towline Glider Record Lee Hines decides bear down particular phase free flight things happen bit over decade ago bore down Indoor HL Glider Until recently hasnt very active modeling although designed Sharkie towline glider helped Dennis Bronco get Nordic Glider team few years ago Recently decided bear down A/2 towline gliders result rather impressive list top places Southern California com petition event isnt exactly casual recently captured national record event record set Lees oldest bird Ultimax according Lee flutters high launching speeds 15 grams overweight has excessive dihedral dumb looking nose several other flaws Despite its flaws made 43 maxes out 47 official flights made eight contests during 1976 although Lees newer improved Ultimax II flown often Ultimax II easier handle during circle-towing can circle tighter spinning permits higher launching speeds flutter using 6-lb un latching force setting has better still-air time due its light weight accu rately shaped leading edge better stall recovery due lighter tail components greater wing-tip wash-out has less dihedral December 18 day record flying conditions incredible Because smooth light thermals low drift rate 8-mm flight drifted about 200 yds Early flights light lift hung around required three minutes out gaining altitude Lift increased during day produced several 10- 20mm flights Seelig timer set 7 mm Lee can get out Finally thermal activity simply quit 3 pm Lees last flight 315 came down 228 Lees record 3208 seconds consisted 12 consecutive flights increasing maxes last 5 plus final flight 228 Full-size plans Ultimax II may obtained sending $3 Lee Hines 767 Scott Place Apt 2 Costa Mesa CA 92627 RubberKit ScaleSource Gene Dubois Continued page 86 Remocall Anyone frequency model lost weeds woods Need range check Forget turn off trans mitter little 1 /z longl gadget provides solutions familiar everyday prob lems Plug unused channel walk field turn receiver transmitter off will let know someone frequency Plug airplane weighs less 1 oz down weeds etc will set up clearly audi ble signal can hear several hundred feet away Handy checking range warn turned x-mitter Price $2495 Model Rec tifier Corp 2500 Woodbridge Ave Edison NJ 08817 58 Model Aviation Flyline Models producing famed Earl Stahl designsthis 28-in Rearwing Speedster Nicely detailed Peanut Scale PT-iS built Gene Duboms Models kit Peanut booming FF Duration/Mouser Continued page S8 Models far one-man basement opera tion carries nice line models Top line 28-in Gere Sport FE single-channel RC rubber electric gas power Mainstay line however line Peanut Scale models far includes Gere Sport P-47D P-19 Army Air Force trainer Grumman Hellcat Other models hardware items such balsa stripper works Gere Sport kit examined seemed good quality Printed sheetwood C-grain correct hardness stripwood uniform nicely cut Hardware includes plastic prop thrust button vac-formed scale wheel halves four em plastic windshield material wire parts Tissue top quality Nose opening bit small liking could easily enlarged Plans appear adequate accurate Price Peanuts $375 plus 75 handling 5% tax Massachusetts residents hobby shop doesnt stock order direct G D Models PO Box C Acushnet MA 02743 Send stamped self-addressed envelope price list Bob Meuser 4200 Gregory St Oak land CA 94619 RC Sport/Van Putte continued page 19 Astro Flight RC System AnalyzerRapid Charger excellent product am pleased recommend subject products Id also like mention motor mounts produced C B Associates Bob Seigel koff sent two 60-size mounts examination excellent backs engine mounting areas machined beautifully thrust line perpendicular back mount honest zero-zero engine setup easy obtain pressure sand-cast mounts guaranteed replaced ever break tough looking doubt have re place very letter Richard Neveln Berkeley California suggested way handle problem trophy hunters competing classes lower should sug gestion have score determine class belong group would have maximum number points per flight eg 1000 points Novice 1500 Advanced 2000 Expert un limited Masters Everyone would have same maneuver list contest ants would maneuvers could certainly would tend eliminate trophy hunter problem continue haunted what happened few years ago contest run just way seems leading Class now called Novice competition GloBee Stinger cordless self-contained AA starter delivers over 100 starts full charge freeing modelers burd en hauling around heavy separate battery its dangling wires Two 2 VDC recharge able lead acid cells included power 9000 rpm motor 5000 rpm under load enough flywheel action start cranky engines Its resilient drive cup adapts vari ous engines 010 051 cid black high-impact case fuel-proof fluted firm grip Integral flywheel shroud protects motor shaft bearings casual side thrust damage Anti-roll flange also serves finger stop Coaxial type recharge jack pre vents improper terminal connections Match ing 45 VDC charger also available Parts replaceable easily accessible unit sepa rates two halves few screws removed Measures 1 1Ax 1% weighs about 28 oz Introductory package price $3995 both starter charger together batter ies included Fusite Division 6000 Fernview Ave Cincinnati OH 45212 produotreviewpreductrviewproductrviewproductreview last flight too good went top class bottom next us always discovering new different ways use cyanoacrylate ad hesives like Hot Stuff Zap Jet Fast Bond etc Since am no exception Id like share couple Just recently building new sport airplane preparing triangularly shaped rudder balsa grain chosen parallel hinge line ex posed grain angle back rudder couldnt seem get fuzz sanded smooth laid down trail Hot Stuff along edge took couple licks sandpaper elimi nate fuzz last two years have pre paring balsa skins foam wings using cyanoacrylate adhesives prepare dividual sheets cutting will overlap about half inch completed skin rolld foam core edges butt-glued together sanded eliminate gaps turn sheets good side down hold together masking tape turn sheets over apply lipe cyanoacrylate joint tape peeled away will see good side should down taping because adhesive will come off tape stick balsa cyanoacry late hits Thats no problem because youre going put contact cement anyway reminds technique use foam cores wing skins may like try wing core skins ready give coat either polyurethane varnish shellac Both completely compatible poly styrene foam will hurt way reason coating core wing skin keep contact cement penetrating Since con tact cement surface can make skin stick core whatever penetrates wont good polyurethane var nish shellac core skin keeps contact cement up surface will job sticking things together like its supposed An added benefit coatings form vapor barrier between polystyrene foam harmful finish es may use paint wing va por barriers will keep paints eating up foam happen penetrate balsa skin received letter Jerry Adkins Ypsilanti Michigan idea pat tern competition think has lot merit Jerrys slightly edited proposal follows Have ever thought about what takes competitive todays pattern competition First off have expert flier Next must possess retract-equipped 60-powered bomb cause pattern judges wont recognize anything less good fliers lose con tests because flying ratty looking sport ship instead Phoenix racing boys did cant good sport fliers would like give pattern try dont have rich uncle own stock gold Still fliers arent content see times can go under lim bo people Quickie Pattern two classes competition Sportsman Advanced Sportsman class open anyone has placed AMAsanctioned pattern contest AMA Novice pattern will flown minus outside loop Advanced class open still competing AMA Novice pat tern complete Novice pattern will flown Aircraft limitations Quickie 500type craft similar Spickler 500 15-500 Sweet Stick Falcon 56 etc Max 40-size engine no retracts trike gear okay above proposed rules generalizations rules needed keep simple Lets bring piece pattern com petition back average boys What happened days could fly pattern 3-channel ship void needs filled void ex ists somewhere between advanced 86 Model Aviation
Edition: Model Aviation - 1977/06
Page Numbers: 36, 37, 58, 86
Duralion f0 Bob Meuser GYSOB It has around now some eight years Ed Bellingers prototype its still half cured epoxy finish still flying taking trophy now again Despite few have built models arent kitted published built large numbersit has man aged accumulate rather impressive track record West its July 1976 issue however Model Builder magazine presented construction article about Gysob should seeing few full-size plans order No7763 M B Plans Service 621 West 19th St Costa Mesa CA 92627 Price $400 3rd Class postage paid plus 45 1st Class postage plus 6% California resi dents Recently former FAI Power team member Doug Galbreath decided try some big stuff acquired prototype Cox 40 elected use Gysob pur pose applied few FAI-Power standard tricks ran off both Category Category II Class C records Doug uses timer-operated auto-rudder auto-stabilizer set-up typical FAI Power models re-trim model after power cuts Doug claims trimming big over-powered machine like auto surfaces easier trimming Half-A mentioned Doug llj 4--lz tried sell local FAI Power flier virtues silence electric propulsion responded Man dont make lotta noise aint no fun Doug allowed lot truth hear racket feel tug hot 40 really know have couple hands full horsepower Doug incidentally wears Mickey Mouse ear protectors sensible power fliers nowadays Doug claims flying big Gysob has fun total previous modeling experience has put up around 150 flights Gysob burned out about five special Cox glowplugs process leaned out too much has flown flights using same prop fiberglass replica Graupner 50L HT 4 SIDES9 4 SHTHT pI\J~Q16QSPII Ed Bc/lingers848 C/a3s Ctcords Cat land if_________________ bjf Doug Qaibreath_____ 36 Model Aviation I Above Here turning loose Cox 40 Gysob its record flights see text Doug Galbreath has around 150 flights model Right New Cox 40 yet released powered Gysob two Class C free-flight records 85 /5 71 uLtmn2Ax II LEE HINES 71 K7II -1 EEZ7 I7/5 K ZZ ii 10-4 molded Roger Simpson Cox burns 50%-nitro fuel much other junk scarcely space left alcohol Still repeated teardowns engine have indicated still essentially new Dont line up front local hobby emporium buy Cox 40 quite yet Cox writing has yet scheduled release date Boeing Meet July 9 10 modelers least midlin amused pro spect getting healthy portion job-training expenses paid Estab lishment will converge Boeing Aero space Center Kent Wash eighth running annual event sponsored Boeing Management Assoc Prizes top places run around $1000 $250 towards winners education ex penses Anyone 18 under eligible bring Big Brudder 01 Man along too Open classes too already over hill contest has traditionally Free-Flight biased events Control-Line Rocket also catch-all called Special P/30 Event Nats now official unofficial P/30 outdoor rubberpower event will held 1977 Nats According John Oldenkamp originators event sponsored San Diego Orbiteers trophies will awarded through fifth place addi tion will Junior High Time Award Ladies Cup about time read event will included bill-of-fare US Free Flight Champs later year Model Airplane News magazine will celebrate tenth anniversary Dave Linstrums editorship its VTO column means Postal International P/30 Proxy Meet Entries may submitted Nats mailed Peck-Polymers Rules follows No dimension may exceed 30 inches Model must propelled t unaltered 9-in commercial plastic 8 prop presume smaller props would allowed Rubber weight must Maa oer /47 4-h4/e scr exceed 10g max 3 minutes first blush would seem 9in Peck Vintage Aero prop 30-in model probably fairly high aspect ratio would just ticket might well depends unpredictables such weather large model will stay sight longer small example However 9-in props weigh 66 g seems bit much relation 10 g rubber allowed think Ill 2 rnn k 4 7 Sn- plastic 1 2 1 opt 8-in prop weighs 47 grams doesnt go upstairs fast enough can always replace 7incher weighs mere 3 g indicated three-view optimum perform ance model exclusive prop rubber shouldnt weigh much 10 grams order have model will withstand rigors sort bumble-thumbing span must less Continued page 58 ij1 2sq3 iS 22 -43 IT14 eov bottom. 8 sides 10 June1977 37 Lee Hines record-setting Ultimax Improved version 3-view Bill Booth photo FF Duration/Meuser continued page 37 allowed 30 inches 21 inches seems about right guess probably good construction should reasonably simple layout should fairly conventional design should ugly poor taste inconsistency line form permit design based rock-solid principles presented three view Right-thrust used get right turn under power kits market satisfy rules might com petitive Pecks One-Night 28 Sigs Mini Maxer Tiger Cub Thermal Dart name few New NFFS Officers National Free Right Society has acquired three new offi cers After serving editor Free Flight NFFS Digest longer two previous editors am turning over cutting pasting wise-cracking Keith Vamau 4147 Wilson Ave Castro Valley CA 94546 Keith age 32 has elementary school teaching credential currently going college driving bus took fourth 1967 Nats behind Hines Miller Cailliau highceiling Indoor Hand-Launch Glider Hell needing material way club newsletters photos individual contribu tions probably can use some help drafting jobs Bill Booth Jr takes over MemberAero-Foam Paints Pactra Industries Inc has new line Aero-Foam paints specialty form ulated produce lightweight high-gloss fuel-proof finish flying model aircraft fea turing foam wings fuselage parts Aero Foam works equally well plastic balsa metal parts colors plane same color will match perfectly 10 colors 4 oz Brush ingand8matchingcolorsin l3oz Spray cans Pactra Industries Inc 7060 Hollywood Blvd Los Angeles CA 90028 productreviwproductreviwproducrviewproductrviw ship Chairman Doug Galbreath Doug will continue doing printing mailing However Bill recently married hasnt settled down permanent address writing meanwhile better continue address membership problems Doug Keeping dues pay ments address changes sorted out difficult time consuming often thankless job guy talk wish join society complain Digest got lost mail forgot pay dues forget tell him moved Arlene Hannah goes around Bruce Hannah Jr replaces Barbara Par sons manager NFFS Supplies good source nifty free-flight specialty hardware items arent nor mally stocked local hobby empo rium Send stamped self-addressed enve lope price list NFFS Supplies 9525 Achates Circle Sacramento CA 95826 Rumor has Executive Director Hardy Brodersen manager NFFS Plans Publications Larry Jordan seeking replacements Any sug gestions Towline Glider Record Lee Hines decides bear down particular phase free flight things happen bit over decade ago bore down Indoor HL Glider Until recently hasnt very active modeling although designed Sharkie towline glider helped Dennis Bronco get Nordic Glider team few years ago Recently decided bear down A/2 towline gliders result rather impressive list top places Southern California com petition event isnt exactly casual recently captured national record event record set Lees oldest bird Ultimax according Lee flutters high launching speeds 15 grams overweight has excessive dihedral dumb looking nose several other flaws Despite its flaws made 43 maxes out 47 official flights made eight contests during 1976 although Lees newer improved Ultimax II flown often Ultimax II easier handle during circle-towing can circle tighter spinning permits higher launching speeds flutter using 6-lb un latching force setting has better still-air time due its light weight accu rately shaped leading edge better stall recovery due lighter tail components greater wing-tip wash-out has less dihedral December 18 day record flying conditions incredible Because smooth light thermals low drift rate 8-mm flight drifted about 200 yds Early flights light lift hung around required three minutes out gaining altitude Lift increased during day produced several 10- 20mm flights Seelig timer set 7 mm Lee can get out Finally thermal activity simply quit 3 pm Lees last flight 315 came down 228 Lees record 3208 seconds consisted 12 consecutive flights increasing maxes last 5 plus final flight 228 Full-size plans Ultimax II may obtained sending $3 Lee Hines 767 Scott Place Apt 2 Costa Mesa CA 92627 RubberKit ScaleSource Gene Dubois Continued page 86 Remocall Anyone frequency model lost weeds woods Need range check Forget turn off trans mitter little 1 /z longl gadget provides solutions familiar everyday prob lems Plug unused channel walk field turn receiver transmitter off will let know someone frequency Plug airplane weighs less 1 oz down weeds etc will set up clearly audi ble signal can hear several hundred feet away Handy checking range warn turned x-mitter Price $2495 Model Rec tifier Corp 2500 Woodbridge Ave Edison NJ 08817 58 Model Aviation Flyline Models producing famed Earl Stahl designsthis 28-in Rearwing Speedster Nicely detailed Peanut Scale PT-iS built Gene Duboms Models kit Peanut booming FF Duration/Mouser Continued page S8 Models far one-man basement opera tion carries nice line models Top line 28-in Gere Sport FE single-channel RC rubber electric gas power Mainstay line however line Peanut Scale models far includes Gere Sport P-47D P-19 Army Air Force trainer Grumman Hellcat Other models hardware items such balsa stripper works Gere Sport kit examined seemed good quality Printed sheetwood C-grain correct hardness stripwood uniform nicely cut Hardware includes plastic prop thrust button vac-formed scale wheel halves four em plastic windshield material wire parts Tissue top quality Nose opening bit small liking could easily enlarged Plans appear adequate accurate Price Peanuts $375 plus 75 handling 5% tax Massachusetts residents hobby shop doesnt stock order direct G D Models PO Box C Acushnet MA 02743 Send stamped self-addressed envelope price list Bob Meuser 4200 Gregory St Oak land CA 94619 RC Sport/Van Putte continued page 19 Astro Flight RC System AnalyzerRapid Charger excellent product am pleased recommend subject products Id also like mention motor mounts produced C B Associates Bob Seigel koff sent two 60-size mounts examination excellent backs engine mounting areas machined beautifully thrust line perpendicular back mount honest zero-zero engine setup easy obtain pressure sand-cast mounts guaranteed replaced ever break tough looking doubt have re place very letter Richard Neveln Berkeley California suggested way handle problem trophy hunters competing classes lower should sug gestion have score determine class belong group would have maximum number points per flight eg 1000 points Novice 1500 Advanced 2000 Expert un limited Masters Everyone would have same maneuver list contest ants would maneuvers could certainly would tend eliminate trophy hunter problem continue haunted what happened few years ago contest run just way seems leading Class now called Novice competition GloBee Stinger cordless self-contained AA starter delivers over 100 starts full charge freeing modelers burd en hauling around heavy separate battery its dangling wires Two 2 VDC recharge able lead acid cells included power 9000 rpm motor 5000 rpm under load enough flywheel action start cranky engines Its resilient drive cup adapts vari ous engines 010 051 cid black high-impact case fuel-proof fluted firm grip Integral flywheel shroud protects motor shaft bearings casual side thrust damage Anti-roll flange also serves finger stop Coaxial type recharge jack pre vents improper terminal connections Match ing 45 VDC charger also available Parts replaceable easily accessible unit sepa rates two halves few screws removed Measures 1 1Ax 1% weighs about 28 oz Introductory package price $3995 both starter charger together batter ies included Fusite Division 6000 Fernview Ave Cincinnati OH 45212 produotreviewpreductrviewproductrviewproductreview last flight too good went top class bottom next us always discovering new different ways use cyanoacrylate ad hesives like Hot Stuff Zap Jet Fast Bond etc Since am no exception Id like share couple Just recently building new sport airplane preparing triangularly shaped rudder balsa grain chosen parallel hinge line ex posed grain angle back rudder couldnt seem get fuzz sanded smooth laid down trail Hot Stuff along edge took couple licks sandpaper elimi nate fuzz last two years have pre paring balsa skins foam wings using cyanoacrylate adhesives prepare dividual sheets cutting will overlap about half inch completed skin rolld foam core edges butt-glued together sanded eliminate gaps turn sheets good side down hold together masking tape turn sheets over apply lipe cyanoacrylate joint tape peeled away will see good side should down taping because adhesive will come off tape stick balsa cyanoacry late hits Thats no problem because youre going put contact cement anyway reminds technique use foam cores wing skins may like try wing core skins ready give coat either polyurethane varnish shellac Both completely compatible poly styrene foam will hurt way reason coating core wing skin keep contact cement penetrating Since con tact cement surface can make skin stick core whatever penetrates wont good polyurethane var nish shellac core skin keeps contact cement up surface will job sticking things together like its supposed An added benefit coatings form vapor barrier between polystyrene foam harmful finish es may use paint wing va por barriers will keep paints eating up foam happen penetrate balsa skin received letter Jerry Adkins Ypsilanti Michigan idea pat tern competition think has lot merit Jerrys slightly edited proposal follows Have ever thought about what takes competitive todays pattern competition First off have expert flier Next must possess retract-equipped 60-powered bomb cause pattern judges wont recognize anything less good fliers lose con tests because flying ratty looking sport ship instead Phoenix racing boys did cant good sport fliers would like give pattern try dont have rich uncle own stock gold Still fliers arent content see times can go under lim bo people Quickie Pattern two classes competition Sportsman Advanced Sportsman class open anyone has placed AMAsanctioned pattern contest AMA Novice pattern will flown minus outside loop Advanced class open still competing AMA Novice pat tern complete Novice pattern will flown Aircraft limitations Quickie 500type craft similar Spickler 500 15-500 Sweet Stick Falcon 56 etc Max 40-size engine no retracts trike gear okay above proposed rules generalizations rules needed keep simple Lets bring piece pattern com petition back average boys What happened days could fly pattern 3-channel ship void needs filled void ex ists somewhere between advanced 86 Model Aviation
Edition: Model Aviation - 1977/06
Page Numbers: 36, 37, 58, 86
Duralion f0 Bob Meuser GYSOB It has around now some eight years Ed Bellingers prototype its still half cured epoxy finish still flying taking trophy now again Despite few have built models arent kitted published built large numbersit has man aged accumulate rather impressive track record West its July 1976 issue however Model Builder magazine presented construction article about Gysob should seeing few full-size plans order No7763 M B Plans Service 621 West 19th St Costa Mesa CA 92627 Price $400 3rd Class postage paid plus 45 1st Class postage plus 6% California resi dents Recently former FAI Power team member Doug Galbreath decided try some big stuff acquired prototype Cox 40 elected use Gysob pur pose applied few FAI-Power standard tricks ran off both Category Category II Class C records Doug uses timer-operated auto-rudder auto-stabilizer set-up typical FAI Power models re-trim model after power cuts Doug claims trimming big over-powered machine like auto surfaces easier trimming Half-A mentioned Doug llj 4--lz tried sell local FAI Power flier virtues silence electric propulsion responded Man dont make lotta noise aint no fun Doug allowed lot truth hear racket feel tug hot 40 really know have couple hands full horsepower Doug incidentally wears Mickey Mouse ear protectors sensible power fliers nowadays Doug claims flying big Gysob has fun total previous modeling experience has put up around 150 flights Gysob burned out about five special Cox glowplugs process leaned out too much has flown flights using same prop fiberglass replica Graupner 50L HT 4 SIDES9 4 SHTHT pI\J~Q16QSPII Ed Bc/lingers848 C/a3s Ctcords Cat land if_________________ bjf Doug Qaibreath_____ 36 Model Aviation I Above Here turning loose Cox 40 Gysob its record flights see text Doug Galbreath has around 150 flights model Right New Cox 40 yet released powered Gysob two Class C free-flight records 85 /5 71 uLtmn2Ax II LEE HINES 71 K7II -1 EEZ7 I7/5 K ZZ ii 10-4 molded Roger Simpson Cox burns 50%-nitro fuel much other junk scarcely space left alcohol Still repeated teardowns engine have indicated still essentially new Dont line up front local hobby emporium buy Cox 40 quite yet Cox writing has yet scheduled release date Boeing Meet July 9 10 modelers least midlin amused pro spect getting healthy portion job-training expenses paid Estab lishment will converge Boeing Aero space Center Kent Wash eighth running annual event sponsored Boeing Management Assoc Prizes top places run around $1000 $250 towards winners education ex penses Anyone 18 under eligible bring Big Brudder 01 Man along too Open classes too already over hill contest has traditionally Free-Flight biased events Control-Line Rocket also catch-all called Special P/30 Event Nats now official unofficial P/30 outdoor rubberpower event will held 1977 Nats According John Oldenkamp originators event sponsored San Diego Orbiteers trophies will awarded through fifth place addi tion will Junior High Time Award Ladies Cup about time read event will included bill-of-fare US Free Flight Champs later year Model Airplane News magazine will celebrate tenth anniversary Dave Linstrums editorship its VTO column means Postal International P/30 Proxy Meet Entries may submitted Nats mailed Peck-Polymers Rules follows No dimension may exceed 30 inches Model must propelled t unaltered 9-in commercial plastic 8 prop presume smaller props would allowed Rubber weight must Maa oer /47 4-h4/e scr exceed 10g max 3 minutes first blush would seem 9in Peck Vintage Aero prop 30-in model probably fairly high aspect ratio would just ticket might well depends unpredictables such weather large model will stay sight longer small example However 9-in props weigh 66 g seems bit much relation 10 g rubber allowed think Ill 2 rnn k 4 7 Sn- plastic 1 2 1 opt 8-in prop weighs 47 grams doesnt go upstairs fast enough can always replace 7incher weighs mere 3 g indicated three-view optimum perform ance model exclusive prop rubber shouldnt weigh much 10 grams order have model will withstand rigors sort bumble-thumbing span must less Continued page 58 ij1 2sq3 iS 22 -43 IT14 eov bottom. 8 sides 10 June1977 37 Lee Hines record-setting Ultimax Improved version 3-view Bill Booth photo FF Duration/Meuser continued page 37 allowed 30 inches 21 inches seems about right guess probably good construction should reasonably simple layout should fairly conventional design should ugly poor taste inconsistency line form permit design based rock-solid principles presented three view Right-thrust used get right turn under power kits market satisfy rules might com petitive Pecks One-Night 28 Sigs Mini Maxer Tiger Cub Thermal Dart name few New NFFS Officers National Free Right Society has acquired three new offi cers After serving editor Free Flight NFFS Digest longer two previous editors am turning over cutting pasting wise-cracking Keith Vamau 4147 Wilson Ave Castro Valley CA 94546 Keith age 32 has elementary school teaching credential currently going college driving bus took fourth 1967 Nats behind Hines Miller Cailliau highceiling Indoor Hand-Launch Glider Hell needing material way club newsletters photos individual contribu tions probably can use some help drafting jobs Bill Booth Jr takes over MemberAero-Foam Paints Pactra Industries Inc has new line Aero-Foam paints specialty form ulated produce lightweight high-gloss fuel-proof finish flying model aircraft fea turing foam wings fuselage parts Aero Foam works equally well plastic balsa metal parts colors plane same color will match perfectly 10 colors 4 oz Brush ingand8matchingcolorsin l3oz Spray cans Pactra Industries Inc 7060 Hollywood Blvd Los Angeles CA 90028 productreviwproductreviwproducrviewproductrviw ship Chairman Doug Galbreath Doug will continue doing printing mailing However Bill recently married hasnt settled down permanent address writing meanwhile better continue address membership problems Doug Keeping dues pay ments address changes sorted out difficult time consuming often thankless job guy talk wish join society complain Digest got lost mail forgot pay dues forget tell him moved Arlene Hannah goes around Bruce Hannah Jr replaces Barbara Par sons manager NFFS Supplies good source nifty free-flight specialty hardware items arent nor mally stocked local hobby empo rium Send stamped self-addressed enve lope price list NFFS Supplies 9525 Achates Circle Sacramento CA 95826 Rumor has Executive Director Hardy Brodersen manager NFFS Plans Publications Larry Jordan seeking replacements Any sug gestions Towline Glider Record Lee Hines decides bear down particular phase free flight things happen bit over decade ago bore down Indoor HL Glider Until recently hasnt very active modeling although designed Sharkie towline glider helped Dennis Bronco get Nordic Glider team few years ago Recently decided bear down A/2 towline gliders result rather impressive list top places Southern California com petition event isnt exactly casual recently captured national record event record set Lees oldest bird Ultimax according Lee flutters high launching speeds 15 grams overweight has excessive dihedral dumb looking nose several other flaws Despite its flaws made 43 maxes out 47 official flights made eight contests during 1976 although Lees newer improved Ultimax II flown often Ultimax II easier handle during circle-towing can circle tighter spinning permits higher launching speeds flutter using 6-lb un latching force setting has better still-air time due its light weight accu rately shaped leading edge better stall recovery due lighter tail components greater wing-tip wash-out has less dihedral December 18 day record flying conditions incredible Because smooth light thermals low drift rate 8-mm flight drifted about 200 yds Early flights light lift hung around required three minutes out gaining altitude Lift increased during day produced several 10- 20mm flights Seelig timer set 7 mm Lee can get out Finally thermal activity simply quit 3 pm Lees last flight 315 came down 228 Lees record 3208 seconds consisted 12 consecutive flights increasing maxes last 5 plus final flight 228 Full-size plans Ultimax II may obtained sending $3 Lee Hines 767 Scott Place Apt 2 Costa Mesa CA 92627 RubberKit ScaleSource Gene Dubois Continued page 86 Remocall Anyone frequency model lost weeds woods Need range check Forget turn off trans mitter little 1 /z longl gadget provides solutions familiar everyday prob lems Plug unused channel walk field turn receiver transmitter off will let know someone frequency Plug airplane weighs less 1 oz down weeds etc will set up clearly audi ble signal can hear several hundred feet away Handy checking range warn turned x-mitter Price $2495 Model Rec tifier Corp 2500 Woodbridge Ave Edison NJ 08817 58 Model Aviation Flyline Models producing famed Earl Stahl designsthis 28-in Rearwing Speedster Nicely detailed Peanut Scale PT-iS built Gene Duboms Models kit Peanut booming FF Duration/Mouser Continued page S8 Models far one-man basement opera tion carries nice line models Top line 28-in Gere Sport FE single-channel RC rubber electric gas power Mainstay line however line Peanut Scale models far includes Gere Sport P-47D P-19 Army Air Force trainer Grumman Hellcat Other models hardware items such balsa stripper works Gere Sport kit examined seemed good quality Printed sheetwood C-grain correct hardness stripwood uniform nicely cut Hardware includes plastic prop thrust button vac-formed scale wheel halves four em plastic windshield material wire parts Tissue top quality Nose opening bit small liking could easily enlarged Plans appear adequate accurate Price Peanuts $375 plus 75 handling 5% tax Massachusetts residents hobby shop doesnt stock order direct G D Models PO Box C Acushnet MA 02743 Send stamped self-addressed envelope price list Bob Meuser 4200 Gregory St Oak land CA 94619 RC Sport/Van Putte continued page 19 Astro Flight RC System AnalyzerRapid Charger excellent product am pleased recommend subject products Id also like mention motor mounts produced C B Associates Bob Seigel koff sent two 60-size mounts examination excellent backs engine mounting areas machined beautifully thrust line perpendicular back mount honest zero-zero engine setup easy obtain pressure sand-cast mounts guaranteed replaced ever break tough looking doubt have re place very letter Richard Neveln Berkeley California suggested way handle problem trophy hunters competing classes lower should sug gestion have score determine class belong group would have maximum number points per flight eg 1000 points Novice 1500 Advanced 2000 Expert un limited Masters Everyone would have same maneuver list contest ants would maneuvers could certainly would tend eliminate trophy hunter problem continue haunted what happened few years ago contest run just way seems leading Class now called Novice competition GloBee Stinger cordless self-contained AA starter delivers over 100 starts full charge freeing modelers burd en hauling around heavy separate battery its dangling wires Two 2 VDC recharge able lead acid cells included power 9000 rpm motor 5000 rpm under load enough flywheel action start cranky engines Its resilient drive cup adapts vari ous engines 010 051 cid black high-impact case fuel-proof fluted firm grip Integral flywheel shroud protects motor shaft bearings casual side thrust damage Anti-roll flange also serves finger stop Coaxial type recharge jack pre vents improper terminal connections Match ing 45 VDC charger also available Parts replaceable easily accessible unit sepa rates two halves few screws removed Measures 1 1Ax 1% weighs about 28 oz Introductory package price $3995 both starter charger together batter ies included Fusite Division 6000 Fernview Ave Cincinnati OH 45212 produotreviewpreductrviewproductrviewproductreview last flight too good went top class bottom next us always discovering new different ways use cyanoacrylate ad hesives like Hot Stuff Zap Jet Fast Bond etc Since am no exception Id like share couple Just recently building new sport airplane preparing triangularly shaped rudder balsa grain chosen parallel hinge line ex posed grain angle back rudder couldnt seem get fuzz sanded smooth laid down trail Hot Stuff along edge took couple licks sandpaper elimi nate fuzz last two years have pre paring balsa skins foam wings using cyanoacrylate adhesives prepare dividual sheets cutting will overlap about half inch completed skin rolld foam core edges butt-glued together sanded eliminate gaps turn sheets good side down hold together masking tape turn sheets over apply lipe cyanoacrylate joint tape peeled away will see good side should down taping because adhesive will come off tape stick balsa cyanoacry late hits Thats no problem because youre going put contact cement anyway reminds technique use foam cores wing skins may like try wing core skins ready give coat either polyurethane varnish shellac Both completely compatible poly styrene foam will hurt way reason coating core wing skin keep contact cement penetrating Since con tact cement surface can make skin stick core whatever penetrates wont good polyurethane var nish shellac core skin keeps contact cement up surface will job sticking things together like its supposed An added benefit coatings form vapor barrier between polystyrene foam harmful finish es may use paint wing va por barriers will keep paints eating up foam happen penetrate balsa skin received letter Jerry Adkins Ypsilanti Michigan idea pat tern competition think has lot merit Jerrys slightly edited proposal follows Have ever thought about what takes competitive todays pattern competition First off have expert flier Next must possess retract-equipped 60-powered bomb cause pattern judges wont recognize anything less good fliers lose con tests because flying ratty looking sport ship instead Phoenix racing boys did cant good sport fliers would like give pattern try dont have rich uncle own stock gold Still fliers arent content see times can go under lim bo people Quickie Pattern two classes competition Sportsman Advanced Sportsman class open anyone has placed AMAsanctioned pattern contest AMA Novice pattern will flown minus outside loop Advanced class open still competing AMA Novice pat tern complete Novice pattern will flown Aircraft limitations Quickie 500type craft similar Spickler 500 15-500 Sweet Stick Falcon 56 etc Max 40-size engine no retracts trike gear okay above proposed rules generalizations rules needed keep simple Lets bring piece pattern com petition back average boys What happened days could fly pattern 3-channel ship void needs filled void ex ists somewhere between advanced 86 Model Aviation