Radio Control OLD- TIMER Dee B8 Mathews Ugly Pretty months Old-Timer designed George Austermann 1935 First flown Logan Field Baltimore Baby Cyclone all-white uncolored ship damaged upon landing George Kramer Brothers large hobby distributor time returned King Burd car flew no repaired final-painted classic scallops seen old ads Kramer Bros. through subsidiary Burd Models sold kit $300 Though advertised rather extensively total about 75 kits sold Though very few gaspowered kits market 1936 obviously fewer engines bands modelers As matter fact ads suggested building King Burd powering rubber until builder could afford engine Danny Sheelds has long-standing love affair King Burd provided us much information Danny built kit 1936 13-year-old since father made $2000 week never could afford engine needless say Danny Baltimore SAM members feel King Burd best flying five-footers around number King Burds have built flying regularly Maryland area first trainers RC neophytes Several years ago Danny Gene Crimm produced limited run kits consider ing doing again Included possibilities 1-sized enlarged version suitable 40 power U_ 3 A- ____ di SPAN 59 CHORD 9 936 BURD MODELSKRAMER BROS 0369 __________________SECTION-CLARK V FULL SIZE INCHES Fl As can seen photos King Burd has exceptionally simple structure obvi ously easy build Note natural hinge lines empennage wing tip construction Somehow dont think original methodlooks awfully familiar Anyhow King Burd strikes us splendid design enjoy flying building Old-Timers Contact Danny Sheelds 3 Cinnamon Circle Randallstown MD 21133 information kit plans Always enclose SASE writing mention saw Model via don No surprises young man holding lovely General Skyfarer FF Rubber Scale model other Dr Paul MacCready Although photo April 1944 issue Air Trails model actually built flown 1941 part Pauls successful bid winning National Junior Sweepstake Championship Dr MacCreadys Gossamer Condor Gossa mer Albatross Solar Challenger have thoroughly documented various publications Old-Timeratthe82 Nats John Pond has ad vised willing organize run SAM events Lincoln Old-Timer CLand FF events will held Nats CL FF sites O-T RC events will flown lovely Big Bear Lake facility Omaha official Unofficial events schedule check bulletin board AMA Nats HO 42 Model Aviation Gene srlms llng uurd bullS couple ot years ago ualtlmores vanny neelU5 kitted some about three years ago Original design first Gas models never big seller back 30s Doc has history column Sheelds photo April 1944 Air Trails photo young Paul Gossamer Condor MacCready General Skyfarer Rubber Scale model modelers have detected concepts obviously derived model airplanes construction aerodynamics Examples obvious exterior wire bracing commonly used Indoor models large-diameter slow-moving props commonly seen Rubber Power duration models heat-shrink Mylar coverings perhaps interesting unconventional feature use stab tilt control lateral movement features much model aircraft full-scale practices should feel justifiable pride Mac Creadys accomplishments did get aircraft development through hobby utilized some its basic principles construction flying Gas oil February column detailed some development testing doing electronic ignition systems Bill Carpenter CHS Electronics Included two photos some early findings have now using units several applications highly impressed Features particularly appreci ate absolutely noth ing need cut bolted onto engine black bO\ totally selfcontained coil condenser chip etc idiot-proof method setting up unit CHS unit available smaller size better suited engines 15 29 range well original unit will run chainsaw engines Some sample performance numbers K&B 40 Stock No 8011il x 6 Top Flite Super Maple8500 rpm five minutes per ounce regular gas Klotz oil results really shocked us 8500 rpm 16 x 6 Top Flite two-and-one-half minutes per ounce OS Max 90 smaller unit will give about one-and-onehalf hours sparks 250 mAh battery pack larger 500 mAh setup will spark Continued page 129 Iat NORTHERN CALIFORNIAS LARGESTU ISCOUNT HOBBY SHOPI I well FUEL New high film strength lubricant U increased power engine lifeI Highest quality ingredients I II II II II II II II II II IHOURS Monday thru Wednesday V-JU-O iU lflurSday b 1-riday YZJU-6-OU L m Saturday 930-600Sunday 1200-500J m ugust 1 982 43 uoc-s neen playing around transistorized ignition systems again Heres K&B 61 prototype system tells us about month Swings 12-6 Top Flite atg500 rpm runs 31/2 mm ounce regular gas Klotz oil look like timing marks spinner backplate Ignition electronics black box next fuel tank Ni-Cd battery pack just behind Sensor detects spinner-mounted impulse magnet engine mounting lug Its wonderful Leisure electronics exquisite Playboy kitsuitable Iortheir05 electric system add-on prop drive Wood parts superior Note plans show rare Cabin Playboy configuration too MAXIMIZE YOUR FLYING TIME WITH ELECTRIC EAGLES FLIGHT TIMER ~ecf Tic Flight Timer $2495 postage Add 6% sales tax Calif res 25 Weeping Wood Irvine CA 92714 worlds first LCD Countdown Timer alarm mounts transmitter INCLUDES Easy set 72 hour maximum timer 30 second alarm easy-mount slide-in tray extra battery extended use highly visible display bright sunlight also has travel alarm clock calendar H0bbV Horn 4 WE ARE PLEASED TO ANNOUNCE acqcisition Hal Osborne Plans Service Included over 190 eaceptionally high quality Scale plans drawings Cowplele list 50 PP see below COMING SOON enpect have Partial Kit Snow White Antique Gas Model 193t1 available near future pro duced Gene Wallock P W Model Service Price Availability date known liwe Watch ad information OLD TIMER KITS Partial Full Kits P 0 1 Seni Kilo- --Cot Porta Kilo --Olochine Cal 1939 Comet Zipper 54 Spon plon inetpricel $3309 1939 Trenton Terror 72 Iplon md price $2t09 93f Berkeley B occaovcr 04 plan net price $2559 Other P & N Seroi Kits oVaitolle 12100 net lricv 1939 Comet Clipper MK $19 25 1932 tialtaire Sportster $3109 t939 Scientific Mereary $2899 1935 Miss America $3159 1940 Playboy Jr 51799 t94t Playboy Sr 2225 1938 Pomerhoaoe $2500 1949 Ranger $1890 1940 Comet Sailplane $5950 1949 So Long $1750 1939 Kordo Wakefield $1975 MIDWAY MoDEL CO Fall Partial Kiln 1941 Air Traits Sportoter 50 Poll Kit $3590 1938 Pomerboase 55 Span Poll Kit $3596 1936 Flying Quaker 84 Semi Kit pSo md $2 ISO t937 Quaker Ploob 67 Semi Kit plan P01 $1750 1937 Long Cabin 79 Semi Kit tplan loot $2000 1940 Ccoaet Sailplane 36 020 engines $1495 1935 Miso America 30 020 enginvo 51295 OIlier Mfg Old Timcr KilO--Full Kilo 1941 Playboy Senior Tyro pan $4995 1938 Bay Ridge Mike ITyro 48 Spool 0471 $2995 1939 Korda Ilakefield t4Ks 44 Itubber $1650 NEW Playboy Sr 67 geared Electric 95s Spociat introductory Price IReg 54495- $3006 LEISUIOE 05 Geared Sys 19190011 Spnnialano*$7500 ASTIIO 075 XL Sys m/reducert Beg $110 Sp0 $0000 ASTIIO AC DC Charger $6995 ISpeciol O0OOO0$4755 LEISURE IIIGITAL Charger 5111 00Speciol $75 00 SHIPPING & HANDLING Op $800 add 5150 $901 52000 add 5230 50O1 59500 add 5300 $9501 57000 add 5350 acer 57000 add 54 00 CA Addressees add 65 laO Send MO VisaMCI8 Kop Check allow up 30 days CK clearance COD Eaact Charges plus $150 Hdl ICash Only 50 Page CATALOGUE Plans list $200 [A copy mill sent tree--when requested aith order HOBBY HORN hobby specialtiesa PO Box 30011 Seal Beach Ca 90740 17191 8940323 lEast narnings recorderactivates S rings 1/8 SPORT SCALE PLANS 72 WING SPAN DESIGNED FOR SINGLE 40-45 SCHNEURLE ENGINE PRICE $1950 VOGEL AVIATIONBOX 54 RESEDA CA 91335 I4DDEL DIV seventh Ed Holder ninth Larry Pettyjohn Speaking F3 B US team-selection finals planned Joliet IL Airport Labor Day weekend same site 1981 LSF Tournament held See Good Lift Dan Pruss RR 2 Box 49D PlainfiekL IL 60544 RC Old-Timers/Mathews Continued page 43 longer receiver batteries will listen No interference Pro-line Kraft Royal World Cannon units Speak did have aileron glitches long leads Airtronics cured separating two battery packs bit extremely impressed units have painstakingly developed perfected Bill Carpenter now entering full production details units available setup services forth send $100 large SASE CHS Electronics PO Box 1732 Riverton WY 82501 Dont send itto Some discoveries Docs workshop Per haps everyone knew have found roughening edges clear butyrate sheet windows sandpaper greatly improves flow adhesion thick cyanoacrylate glue just edges will concealed lightly sanded *220 paper adhesive seems flow along edge sticks much better still prefer Wilhold H/C 56 white glue filling gaps butt edges however Another helpful discovery use Sig Stripe Rite tape mask paint edges Unlike con ventional masking tape vinyl electrical tape Stripe Rite has fairly low tack prevents often sickening departure underlying paint removed seems seal edges well better other tapes little bleed-through dope epoxy polyurethane Stripe Rite available 9A-in I-in widths case didnt know does com pound around small radius too well use electrical tape curves remove very slowly new Playboy kit Roland Boucher pro nounced Boo-shay recently sent us sample Leisure Electronics down-scaled Playboy Senior kit As can see photo parts sawn excellent balsa ply strip wood well graded overall superb quality shaped piece pre-cut no die crushing hardware package com plete plans well done rarely seen Cabin Playboy also shown plans Although designed around Leisures LT 50 electric motor Astro prop drive model would also joy build delight fly three channels glow diesel engine 1 5 cc range competition model would something else SAM-legal 19 in3 fire-breather like Duke Foxs new BB 19 Playboy Sr kit should available local friendly hobby shop now write Leisure 11 Deerspring Irvine CA 92714 information Tell Model Aviation sent ya Something really large Old-Timers Back tn 1976 first started pounding drum polyester sheathing covering Continued page 132 August1982 129 Stainless Steel HARDWARE CONTIOLINI Thu PROFILE COMBATRAT WIDE ft NARROW WEDGE 15 -- 6 oz Capaciries UNIFLOW & TINDD Custom Dliii lush Ingredients detailed brochure50C stamps/check CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405 Remember Aerotrend source fine modeling hardware also offer complete line wood fiber glass field caddies other acces sorIes Send SASE free catalog todayDEALERS INVITED AEROTREND PRODUCTS 44W Prospect St New Haven CT065151 L1M3jJZSW LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 AIIISCRIW PREStNTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO V x INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Teaconi Ct. Santa Roaa CA 95401 medium much confusion developed over what available fabric stores Some dressliner materials worked very well others totally unsatisfactory greatly pleased see Sig begin market KoVerall its always-reliable chemical make-up no secret such materials have used covering full-sized aircraft years Such materials Stitts Razorback Ceconite much common covering fabric aircraft old linen materials attraction mostly weather resistance stability strength heat- shrinkage drum-tightness Jerry Nelson has now introduced lightweight polyester called Ceconite RC use model field heavier weight easily filled obviously stronger version Sigs Koverall sheathings have completed rather extensive application finish testprogram Ceconite RC can recommend reservation found could applied clear dope conventional silk technique applied heat over dried aliphatic resin Coverite Balsarite Filling could quickly done two three coats nitrate clear butyrate tended peel Other filling techniques such K&B primer Hobbypoxy filler also successful unable find paint didnt adhere well Equally interesting water-soluble filler Nelson introducing called Ceconite Filler dark grey liquid can applied much like latex wall paint self-leveling can brushed sprayed rolled spread sponge surface dries hard finish relatively short time easy sand important nearly odorless have en countered some slight orange-peeling filler deglossed sanding used under Pactra Poly-U spray paint Try some ofthis filler Ceconite RC large models really something else Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Giant Scale/Beckman Continued page 45 probability represents high risk Infinitely serious consequences zero probability 100% probability no serious consequences both work out zero risk real world always somewhere between extremes Now consequences model striking someone extremely serious injury aspect part total Granted size speed weight etc can bear extent potential injury type model quickly get point seriousness high further increments meaningless means true measure risk going probability aspect leave model ground dont fire up engine can reduce probability very nearly zeroif its big enough model someone might get hernia trying lift never hear anyone suggest solutionfor models interested building flying Lets face hobby operateand/or watch operation ofminiature aircraft whatever size way operate determines probability factor break things down little further can say risk hinges two probabilities probability aircraft crashing does probability people property will involved Lets take lookat second prob ability go out ourselves middle desert flying can reduce almost zero have already accepted risk ourselves bad idea initial flight state-of-the-art projects like Bob Campbells B-29 fact such project know has handled exactly way dont necesssarily mean literal desert just some facility space enough allow plenty leeway uncertainties untested airplane Let give some examples witnessed know during past year May 1981 Don Godfrey test flew B-25 inactive airport near Scranton test flights successful no time significant risk small number people present wish June 1981 present Dick Hersheys Grumman Goose flown Clearlake California case lot spectators passersby adjacent road lake shore effective barrier Except two boats pilot photographers enough space between operation people property Unfortunately case first probability raised its ugly head Dicks magnificent Goose now Gone Gosling Four days later Phil Karafilis made what turned out flight Douglas A26 Merwin Ranch during Sacramento Giant Scale Fly-in original plan make first flight evening after days flying over participants left participants selves objected wanted see BIG BEAUTIFUL BOATS boats designed air-cooled Industrial Version QUADRA $13950 comes complete gas tank pull-rope starter engine cowl Other gasoline engines can used J-5 PICKLE FORK HYDRO UNLIMITED 6 foot 5 inch long 3 foot beam mahogany plywood kit spectacular sight water Get giant R/C Boating Fun wood kit16950 Above kit c/w J-5 DRIVE-TRAIN23950 J-5 DRIVE-TRAIN includes clutch fit Industrial QUADRA flexible coupling steel propeller shaft bronze bearings shaft casing strut brazed place rudder dia rudder bar 2 bronze bearings control arm mounting plate necessary bolts nuts collars drive-dog $9950 J-5 THUNDERMARINE 50 snarling speeding fiberglass hull capable running in-foot waves Deep V design 20 beam Fiberglass hull deck kit ply motor mount silver deck moulding$13950 Above k c w 5 DR VE TRAIN$20950 Shipping Charges *J -5 ENTERPRISES Included US & Canada W P0 Box 82 Belmont Ontar 0 NOL 180 phone 1 519-644-0375 J-5 HYDRO UNLIMITED 7-foot long 3-foot beam mahogany plywood boat kit Tunnel-Hull thrill run wafer thrill watch wood kit$14950 Above kit c/w J-5 DRIVE-TRAIN $21950 132 Model Aviation
Edition: Model Aviation - 1982/08
Page Numbers: 42, 43, 129, 132
Radio Control OLD- TIMER Dee B8 Mathews Ugly Pretty months Old-Timer designed George Austermann 1935 First flown Logan Field Baltimore Baby Cyclone all-white uncolored ship damaged upon landing George Kramer Brothers large hobby distributor time returned King Burd car flew no repaired final-painted classic scallops seen old ads Kramer Bros. through subsidiary Burd Models sold kit $300 Though advertised rather extensively total about 75 kits sold Though very few gaspowered kits market 1936 obviously fewer engines bands modelers As matter fact ads suggested building King Burd powering rubber until builder could afford engine Danny Sheelds has long-standing love affair King Burd provided us much information Danny built kit 1936 13-year-old since father made $2000 week never could afford engine needless say Danny Baltimore SAM members feel King Burd best flying five-footers around number King Burds have built flying regularly Maryland area first trainers RC neophytes Several years ago Danny Gene Crimm produced limited run kits consider ing doing again Included possibilities 1-sized enlarged version suitable 40 power U_ 3 A- ____ di SPAN 59 CHORD 9 936 BURD MODELSKRAMER BROS 0369 __________________SECTION-CLARK V FULL SIZE INCHES Fl As can seen photos King Burd has exceptionally simple structure obvi ously easy build Note natural hinge lines empennage wing tip construction Somehow dont think original methodlooks awfully familiar Anyhow King Burd strikes us splendid design enjoy flying building Old-Timers Contact Danny Sheelds 3 Cinnamon Circle Randallstown MD 21133 information kit plans Always enclose SASE writing mention saw Model via don No surprises young man holding lovely General Skyfarer FF Rubber Scale model other Dr Paul MacCready Although photo April 1944 issue Air Trails model actually built flown 1941 part Pauls successful bid winning National Junior Sweepstake Championship Dr MacCreadys Gossamer Condor Gossa mer Albatross Solar Challenger have thoroughly documented various publications Old-Timeratthe82 Nats John Pond has ad vised willing organize run SAM events Lincoln Old-Timer CLand FF events will held Nats CL FF sites O-T RC events will flown lovely Big Bear Lake facility Omaha official Unofficial events schedule check bulletin board AMA Nats HO 42 Model Aviation Gene srlms llng uurd bullS couple ot years ago ualtlmores vanny neelU5 kitted some about three years ago Original design first Gas models never big seller back 30s Doc has history column Sheelds photo April 1944 Air Trails photo young Paul Gossamer Condor MacCready General Skyfarer Rubber Scale model modelers have detected concepts obviously derived model airplanes construction aerodynamics Examples obvious exterior wire bracing commonly used Indoor models large-diameter slow-moving props commonly seen Rubber Power duration models heat-shrink Mylar coverings perhaps interesting unconventional feature use stab tilt control lateral movement features much model aircraft full-scale practices should feel justifiable pride Mac Creadys accomplishments did get aircraft development through hobby utilized some its basic principles construction flying Gas oil February column detailed some development testing doing electronic ignition systems Bill Carpenter CHS Electronics Included two photos some early findings have now using units several applications highly impressed Features particularly appreci ate absolutely noth ing need cut bolted onto engine black bO\ totally selfcontained coil condenser chip etc idiot-proof method setting up unit CHS unit available smaller size better suited engines 15 29 range well original unit will run chainsaw engines Some sample performance numbers K&B 40 Stock No 8011il x 6 Top Flite Super Maple8500 rpm five minutes per ounce regular gas Klotz oil results really shocked us 8500 rpm 16 x 6 Top Flite two-and-one-half minutes per ounce OS Max 90 smaller unit will give about one-and-onehalf hours sparks 250 mAh battery pack larger 500 mAh setup will spark Continued page 129 Iat NORTHERN CALIFORNIAS LARGESTU ISCOUNT HOBBY SHOPI I well FUEL New high film strength lubricant U increased power engine lifeI Highest quality ingredients I II II II II II II II II II IHOURS Monday thru Wednesday V-JU-O iU lflurSday b 1-riday YZJU-6-OU L m Saturday 930-600Sunday 1200-500J m ugust 1 982 43 uoc-s neen playing around transistorized ignition systems again Heres K&B 61 prototype system tells us about month Swings 12-6 Top Flite atg500 rpm runs 31/2 mm ounce regular gas Klotz oil look like timing marks spinner backplate Ignition electronics black box next fuel tank Ni-Cd battery pack just behind Sensor detects spinner-mounted impulse magnet engine mounting lug Its wonderful Leisure electronics exquisite Playboy kitsuitable Iortheir05 electric system add-on prop drive Wood parts superior Note plans show rare Cabin Playboy configuration too MAXIMIZE YOUR FLYING TIME WITH ELECTRIC EAGLES FLIGHT TIMER ~ecf Tic Flight Timer $2495 postage Add 6% sales tax Calif res 25 Weeping Wood Irvine CA 92714 worlds first LCD Countdown Timer alarm mounts transmitter INCLUDES Easy set 72 hour maximum timer 30 second alarm easy-mount slide-in tray extra battery extended use highly visible display bright sunlight also has travel alarm clock calendar H0bbV Horn 4 WE ARE PLEASED TO ANNOUNCE acqcisition Hal Osborne Plans Service Included over 190 eaceptionally high quality Scale plans drawings Cowplele list 50 PP see below COMING SOON enpect have Partial Kit Snow White Antique Gas Model 193t1 available near future pro duced Gene Wallock P W Model Service Price Availability date known liwe Watch ad information OLD TIMER KITS Partial Full Kits P 0 1 Seni Kilo- --Cot Porta Kilo --Olochine Cal 1939 Comet Zipper 54 Spon plon inetpricel $3309 1939 Trenton Terror 72 Iplon md price $2t09 93f Berkeley B occaovcr 04 plan net price $2559 Other P & N Seroi Kits oVaitolle 12100 net lricv 1939 Comet Clipper MK $19 25 1932 tialtaire Sportster $3109 t939 Scientific Mereary $2899 1935 Miss America $3159 1940 Playboy Jr 51799 t94t Playboy Sr 2225 1938 Pomerhoaoe $2500 1949 Ranger $1890 1940 Comet Sailplane $5950 1949 So Long $1750 1939 Kordo Wakefield $1975 MIDWAY MoDEL CO Fall Partial Kiln 1941 Air Traits Sportoter 50 Poll Kit $3590 1938 Pomerboase 55 Span Poll Kit $3596 1936 Flying Quaker 84 Semi Kit pSo md $2 ISO t937 Quaker Ploob 67 Semi Kit plan P01 $1750 1937 Long Cabin 79 Semi Kit tplan loot $2000 1940 Ccoaet Sailplane 36 020 engines $1495 1935 Miso America 30 020 enginvo 51295 OIlier Mfg Old Timcr KilO--Full Kilo 1941 Playboy Senior Tyro pan $4995 1938 Bay Ridge Mike ITyro 48 Spool 0471 $2995 1939 Korda Ilakefield t4Ks 44 Itubber $1650 NEW Playboy Sr 67 geared Electric 95s Spociat introductory Price IReg 54495- $3006 LEISUIOE 05 Geared Sys 19190011 Spnnialano*$7500 ASTIIO 075 XL Sys m/reducert Beg $110 Sp0 $0000 ASTIIO AC DC Charger $6995 ISpeciol O0OOO0$4755 LEISURE IIIGITAL Charger 5111 00Speciol $75 00 SHIPPING & HANDLING Op $800 add 5150 $901 52000 add 5230 50O1 59500 add 5300 $9501 57000 add 5350 acer 57000 add 54 00 CA Addressees add 65 laO Send MO VisaMCI8 Kop Check allow up 30 days CK clearance COD Eaact Charges plus $150 Hdl ICash Only 50 Page CATALOGUE Plans list $200 [A copy mill sent tree--when requested aith order HOBBY HORN hobby specialtiesa PO Box 30011 Seal Beach Ca 90740 17191 8940323 lEast narnings recorderactivates S rings 1/8 SPORT SCALE PLANS 72 WING SPAN DESIGNED FOR SINGLE 40-45 SCHNEURLE ENGINE PRICE $1950 VOGEL AVIATIONBOX 54 RESEDA CA 91335 I4DDEL DIV seventh Ed Holder ninth Larry Pettyjohn Speaking F3 B US team-selection finals planned Joliet IL Airport Labor Day weekend same site 1981 LSF Tournament held See Good Lift Dan Pruss RR 2 Box 49D PlainfiekL IL 60544 RC Old-Timers/Mathews Continued page 43 longer receiver batteries will listen No interference Pro-line Kraft Royal World Cannon units Speak did have aileron glitches long leads Airtronics cured separating two battery packs bit extremely impressed units have painstakingly developed perfected Bill Carpenter now entering full production details units available setup services forth send $100 large SASE CHS Electronics PO Box 1732 Riverton WY 82501 Dont send itto Some discoveries Docs workshop Per haps everyone knew have found roughening edges clear butyrate sheet windows sandpaper greatly improves flow adhesion thick cyanoacrylate glue just edges will concealed lightly sanded *220 paper adhesive seems flow along edge sticks much better still prefer Wilhold H/C 56 white glue filling gaps butt edges however Another helpful discovery use Sig Stripe Rite tape mask paint edges Unlike con ventional masking tape vinyl electrical tape Stripe Rite has fairly low tack prevents often sickening departure underlying paint removed seems seal edges well better other tapes little bleed-through dope epoxy polyurethane Stripe Rite available 9A-in I-in widths case didnt know does com pound around small radius too well use electrical tape curves remove very slowly new Playboy kit Roland Boucher pro nounced Boo-shay recently sent us sample Leisure Electronics down-scaled Playboy Senior kit As can see photo parts sawn excellent balsa ply strip wood well graded overall superb quality shaped piece pre-cut no die crushing hardware package com plete plans well done rarely seen Cabin Playboy also shown plans Although designed around Leisures LT 50 electric motor Astro prop drive model would also joy build delight fly three channels glow diesel engine 1 5 cc range competition model would something else SAM-legal 19 in3 fire-breather like Duke Foxs new BB 19 Playboy Sr kit should available local friendly hobby shop now write Leisure 11 Deerspring Irvine CA 92714 information Tell Model Aviation sent ya Something really large Old-Timers Back tn 1976 first started pounding drum polyester sheathing covering Continued page 132 August1982 129 Stainless Steel HARDWARE CONTIOLINI Thu PROFILE COMBATRAT WIDE ft NARROW WEDGE 15 -- 6 oz Capaciries UNIFLOW & TINDD Custom Dliii lush Ingredients detailed brochure50C stamps/check CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405 Remember Aerotrend source fine modeling hardware also offer complete line wood fiber glass field caddies other acces sorIes Send SASE free catalog todayDEALERS INVITED AEROTREND PRODUCTS 44W Prospect St New Haven CT065151 L1M3jJZSW LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 AIIISCRIW PREStNTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO V x INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Teaconi Ct. Santa Roaa CA 95401 medium much confusion developed over what available fabric stores Some dressliner materials worked very well others totally unsatisfactory greatly pleased see Sig begin market KoVerall its always-reliable chemical make-up no secret such materials have used covering full-sized aircraft years Such materials Stitts Razorback Ceconite much common covering fabric aircraft old linen materials attraction mostly weather resistance stability strength heat- shrinkage drum-tightness Jerry Nelson has now introduced lightweight polyester called Ceconite RC use model field heavier weight easily filled obviously stronger version Sigs Koverall sheathings have completed rather extensive application finish testprogram Ceconite RC can recommend reservation found could applied clear dope conventional silk technique applied heat over dried aliphatic resin Coverite Balsarite Filling could quickly done two three coats nitrate clear butyrate tended peel Other filling techniques such K&B primer Hobbypoxy filler also successful unable find paint didnt adhere well Equally interesting water-soluble filler Nelson introducing called Ceconite Filler dark grey liquid can applied much like latex wall paint self-leveling can brushed sprayed rolled spread sponge surface dries hard finish relatively short time easy sand important nearly odorless have en countered some slight orange-peeling filler deglossed sanding used under Pactra Poly-U spray paint Try some ofthis filler Ceconite RC large models really something else Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Giant Scale/Beckman Continued page 45 probability represents high risk Infinitely serious consequences zero probability 100% probability no serious consequences both work out zero risk real world always somewhere between extremes Now consequences model striking someone extremely serious injury aspect part total Granted size speed weight etc can bear extent potential injury type model quickly get point seriousness high further increments meaningless means true measure risk going probability aspect leave model ground dont fire up engine can reduce probability very nearly zeroif its big enough model someone might get hernia trying lift never hear anyone suggest solutionfor models interested building flying Lets face hobby operateand/or watch operation ofminiature aircraft whatever size way operate determines probability factor break things down little further can say risk hinges two probabilities probability aircraft crashing does probability people property will involved Lets take lookat second prob ability go out ourselves middle desert flying can reduce almost zero have already accepted risk ourselves bad idea initial flight state-of-the-art projects like Bob Campbells B-29 fact such project know has handled exactly way dont necesssarily mean literal desert just some facility space enough allow plenty leeway uncertainties untested airplane Let give some examples witnessed know during past year May 1981 Don Godfrey test flew B-25 inactive airport near Scranton test flights successful no time significant risk small number people present wish June 1981 present Dick Hersheys Grumman Goose flown Clearlake California case lot spectators passersby adjacent road lake shore effective barrier Except two boats pilot photographers enough space between operation people property Unfortunately case first probability raised its ugly head Dicks magnificent Goose now Gone Gosling Four days later Phil Karafilis made what turned out flight Douglas A26 Merwin Ranch during Sacramento Giant Scale Fly-in original plan make first flight evening after days flying over participants left participants selves objected wanted see BIG BEAUTIFUL BOATS boats designed air-cooled Industrial Version QUADRA $13950 comes complete gas tank pull-rope starter engine cowl Other gasoline engines can used J-5 PICKLE FORK HYDRO UNLIMITED 6 foot 5 inch long 3 foot beam mahogany plywood kit spectacular sight water Get giant R/C Boating Fun wood kit16950 Above kit c/w J-5 DRIVE-TRAIN23950 J-5 DRIVE-TRAIN includes clutch fit Industrial QUADRA flexible coupling steel propeller shaft bronze bearings shaft casing strut brazed place rudder dia rudder bar 2 bronze bearings control arm mounting plate necessary bolts nuts collars drive-dog $9950 J-5 THUNDERMARINE 50 snarling speeding fiberglass hull capable running in-foot waves Deep V design 20 beam Fiberglass hull deck kit ply motor mount silver deck moulding$13950 Above k c w 5 DR VE TRAIN$20950 Shipping Charges *J -5 ENTERPRISES Included US & Canada W P0 Box 82 Belmont Ontar 0 NOL 180 phone 1 519-644-0375 J-5 HYDRO UNLIMITED 7-foot long 3-foot beam mahogany plywood boat kit Tunnel-Hull thrill run wafer thrill watch wood kit$14950 Above kit c/w J-5 DRIVE-TRAIN $21950 132 Model Aviation
Edition: Model Aviation - 1982/08
Page Numbers: 42, 43, 129, 132
Radio Control OLD- TIMER Dee B8 Mathews Ugly Pretty months Old-Timer designed George Austermann 1935 First flown Logan Field Baltimore Baby Cyclone all-white uncolored ship damaged upon landing George Kramer Brothers large hobby distributor time returned King Burd car flew no repaired final-painted classic scallops seen old ads Kramer Bros. through subsidiary Burd Models sold kit $300 Though advertised rather extensively total about 75 kits sold Though very few gaspowered kits market 1936 obviously fewer engines bands modelers As matter fact ads suggested building King Burd powering rubber until builder could afford engine Danny Sheelds has long-standing love affair King Burd provided us much information Danny built kit 1936 13-year-old since father made $2000 week never could afford engine needless say Danny Baltimore SAM members feel King Burd best flying five-footers around number King Burds have built flying regularly Maryland area first trainers RC neophytes Several years ago Danny Gene Crimm produced limited run kits consider ing doing again Included possibilities 1-sized enlarged version suitable 40 power U_ 3 A- ____ di SPAN 59 CHORD 9 936 BURD MODELSKRAMER BROS 0369 __________________SECTION-CLARK V FULL SIZE INCHES Fl As can seen photos King Burd has exceptionally simple structure obvi ously easy build Note natural hinge lines empennage wing tip construction Somehow dont think original methodlooks awfully familiar Anyhow King Burd strikes us splendid design enjoy flying building Old-Timers Contact Danny Sheelds 3 Cinnamon Circle Randallstown MD 21133 information kit plans Always enclose SASE writing mention saw Model via don No surprises young man holding lovely General Skyfarer FF Rubber Scale model other Dr Paul MacCready Although photo April 1944 issue Air Trails model actually built flown 1941 part Pauls successful bid winning National Junior Sweepstake Championship Dr MacCreadys Gossamer Condor Gossa mer Albatross Solar Challenger have thoroughly documented various publications Old-Timeratthe82 Nats John Pond has ad vised willing organize run SAM events Lincoln Old-Timer CLand FF events will held Nats CL FF sites O-T RC events will flown lovely Big Bear Lake facility Omaha official Unofficial events schedule check bulletin board AMA Nats HO 42 Model Aviation Gene srlms llng uurd bullS couple ot years ago ualtlmores vanny neelU5 kitted some about three years ago Original design first Gas models never big seller back 30s Doc has history column Sheelds photo April 1944 Air Trails photo young Paul Gossamer Condor MacCready General Skyfarer Rubber Scale model modelers have detected concepts obviously derived model airplanes construction aerodynamics Examples obvious exterior wire bracing commonly used Indoor models large-diameter slow-moving props commonly seen Rubber Power duration models heat-shrink Mylar coverings perhaps interesting unconventional feature use stab tilt control lateral movement features much model aircraft full-scale practices should feel justifiable pride Mac Creadys accomplishments did get aircraft development through hobby utilized some its basic principles construction flying Gas oil February column detailed some development testing doing electronic ignition systems Bill Carpenter CHS Electronics Included two photos some early findings have now using units several applications highly impressed Features particularly appreci ate absolutely noth ing need cut bolted onto engine black bO\ totally selfcontained coil condenser chip etc idiot-proof method setting up unit CHS unit available smaller size better suited engines 15 29 range well original unit will run chainsaw engines Some sample performance numbers K&B 40 Stock No 8011il x 6 Top Flite Super Maple8500 rpm five minutes per ounce regular gas Klotz oil results really shocked us 8500 rpm 16 x 6 Top Flite two-and-one-half minutes per ounce OS Max 90 smaller unit will give about one-and-onehalf hours sparks 250 mAh battery pack larger 500 mAh setup will spark Continued page 129 Iat NORTHERN CALIFORNIAS LARGESTU ISCOUNT HOBBY SHOPI I well FUEL New high film strength lubricant U increased power engine lifeI Highest quality ingredients I II II II II II II II II II IHOURS Monday thru Wednesday V-JU-O iU lflurSday b 1-riday YZJU-6-OU L m Saturday 930-600Sunday 1200-500J m ugust 1 982 43 uoc-s neen playing around transistorized ignition systems again Heres K&B 61 prototype system tells us about month Swings 12-6 Top Flite atg500 rpm runs 31/2 mm ounce regular gas Klotz oil look like timing marks spinner backplate Ignition electronics black box next fuel tank Ni-Cd battery pack just behind Sensor detects spinner-mounted impulse magnet engine mounting lug Its wonderful Leisure electronics exquisite Playboy kitsuitable Iortheir05 electric system add-on prop drive Wood parts superior Note plans show rare Cabin Playboy configuration too MAXIMIZE YOUR FLYING TIME WITH ELECTRIC EAGLES FLIGHT TIMER ~ecf Tic Flight Timer $2495 postage Add 6% sales tax Calif res 25 Weeping Wood Irvine CA 92714 worlds first LCD Countdown Timer alarm mounts transmitter INCLUDES Easy set 72 hour maximum timer 30 second alarm easy-mount slide-in tray extra battery extended use highly visible display bright sunlight also has travel alarm clock calendar H0bbV Horn 4 WE ARE PLEASED TO ANNOUNCE acqcisition Hal Osborne Plans Service Included over 190 eaceptionally high quality Scale plans drawings Cowplele list 50 PP see below COMING SOON enpect have Partial Kit Snow White Antique Gas Model 193t1 available near future pro duced Gene Wallock P W Model Service Price Availability date known liwe Watch ad information OLD TIMER KITS Partial Full Kits P 0 1 Seni Kilo- --Cot Porta Kilo --Olochine Cal 1939 Comet Zipper 54 Spon plon inetpricel $3309 1939 Trenton Terror 72 Iplon md price $2t09 93f Berkeley B occaovcr 04 plan net price $2559 Other P & N Seroi Kits oVaitolle 12100 net lricv 1939 Comet Clipper MK $19 25 1932 tialtaire Sportster $3109 t939 Scientific Mereary $2899 1935 Miss America $3159 1940 Playboy Jr 51799 t94t Playboy Sr 2225 1938 Pomerhoaoe $2500 1949 Ranger $1890 1940 Comet Sailplane $5950 1949 So Long $1750 1939 Kordo Wakefield $1975 MIDWAY MoDEL CO Fall Partial Kiln 1941 Air Traits Sportoter 50 Poll Kit $3590 1938 Pomerboase 55 Span Poll Kit $3596 1936 Flying Quaker 84 Semi Kit pSo md $2 ISO t937 Quaker Ploob 67 Semi Kit plan P01 $1750 1937 Long Cabin 79 Semi Kit tplan loot $2000 1940 Ccoaet Sailplane 36 020 engines $1495 1935 Miso America 30 020 enginvo 51295 OIlier Mfg Old Timcr KilO--Full Kilo 1941 Playboy Senior Tyro pan $4995 1938 Bay Ridge Mike ITyro 48 Spool 0471 $2995 1939 Korda Ilakefield t4Ks 44 Itubber $1650 NEW Playboy Sr 67 geared Electric 95s Spociat introductory Price IReg 54495- $3006 LEISUIOE 05 Geared Sys 19190011 Spnnialano*$7500 ASTIIO 075 XL Sys m/reducert Beg $110 Sp0 $0000 ASTIIO AC DC Charger $6995 ISpeciol O0OOO0$4755 LEISURE IIIGITAL Charger 5111 00Speciol $75 00 SHIPPING & HANDLING Op $800 add 5150 $901 52000 add 5230 50O1 59500 add 5300 $9501 57000 add 5350 acer 57000 add 54 00 CA Addressees add 65 laO Send MO VisaMCI8 Kop Check allow up 30 days CK clearance COD Eaact Charges plus $150 Hdl ICash Only 50 Page CATALOGUE Plans list $200 [A copy mill sent tree--when requested aith order HOBBY HORN hobby specialtiesa PO Box 30011 Seal Beach Ca 90740 17191 8940323 lEast narnings recorderactivates S rings 1/8 SPORT SCALE PLANS 72 WING SPAN DESIGNED FOR SINGLE 40-45 SCHNEURLE ENGINE PRICE $1950 VOGEL AVIATIONBOX 54 RESEDA CA 91335 I4DDEL DIV seventh Ed Holder ninth Larry Pettyjohn Speaking F3 B US team-selection finals planned Joliet IL Airport Labor Day weekend same site 1981 LSF Tournament held See Good Lift Dan Pruss RR 2 Box 49D PlainfiekL IL 60544 RC Old-Timers/Mathews Continued page 43 longer receiver batteries will listen No interference Pro-line Kraft Royal World Cannon units Speak did have aileron glitches long leads Airtronics cured separating two battery packs bit extremely impressed units have painstakingly developed perfected Bill Carpenter now entering full production details units available setup services forth send $100 large SASE CHS Electronics PO Box 1732 Riverton WY 82501 Dont send itto Some discoveries Docs workshop Per haps everyone knew have found roughening edges clear butyrate sheet windows sandpaper greatly improves flow adhesion thick cyanoacrylate glue just edges will concealed lightly sanded *220 paper adhesive seems flow along edge sticks much better still prefer Wilhold H/C 56 white glue filling gaps butt edges however Another helpful discovery use Sig Stripe Rite tape mask paint edges Unlike con ventional masking tape vinyl electrical tape Stripe Rite has fairly low tack prevents often sickening departure underlying paint removed seems seal edges well better other tapes little bleed-through dope epoxy polyurethane Stripe Rite available 9A-in I-in widths case didnt know does com pound around small radius too well use electrical tape curves remove very slowly new Playboy kit Roland Boucher pro nounced Boo-shay recently sent us sample Leisure Electronics down-scaled Playboy Senior kit As can see photo parts sawn excellent balsa ply strip wood well graded overall superb quality shaped piece pre-cut no die crushing hardware package com plete plans well done rarely seen Cabin Playboy also shown plans Although designed around Leisures LT 50 electric motor Astro prop drive model would also joy build delight fly three channels glow diesel engine 1 5 cc range competition model would something else SAM-legal 19 in3 fire-breather like Duke Foxs new BB 19 Playboy Sr kit should available local friendly hobby shop now write Leisure 11 Deerspring Irvine CA 92714 information Tell Model Aviation sent ya Something really large Old-Timers Back tn 1976 first started pounding drum polyester sheathing covering Continued page 132 August1982 129 Stainless Steel HARDWARE CONTIOLINI Thu PROFILE COMBATRAT WIDE ft NARROW WEDGE 15 -- 6 oz Capaciries UNIFLOW & TINDD Custom Dliii lush Ingredients detailed brochure50C stamps/check CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405 Remember Aerotrend source fine modeling hardware also offer complete line wood fiber glass field caddies other acces sorIes Send SASE free catalog todayDEALERS INVITED AEROTREND PRODUCTS 44W Prospect St New Haven CT065151 L1M3jJZSW LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 AIIISCRIW PREStNTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO V x INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Teaconi Ct. Santa Roaa CA 95401 medium much confusion developed over what available fabric stores Some dressliner materials worked very well others totally unsatisfactory greatly pleased see Sig begin market KoVerall its always-reliable chemical make-up no secret such materials have used covering full-sized aircraft years Such materials Stitts Razorback Ceconite much common covering fabric aircraft old linen materials attraction mostly weather resistance stability strength heat- shrinkage drum-tightness Jerry Nelson has now introduced lightweight polyester called Ceconite RC use model field heavier weight easily filled obviously stronger version Sigs Koverall sheathings have completed rather extensive application finish testprogram Ceconite RC can recommend reservation found could applied clear dope conventional silk technique applied heat over dried aliphatic resin Coverite Balsarite Filling could quickly done two three coats nitrate clear butyrate tended peel Other filling techniques such K&B primer Hobbypoxy filler also successful unable find paint didnt adhere well Equally interesting water-soluble filler Nelson introducing called Ceconite Filler dark grey liquid can applied much like latex wall paint self-leveling can brushed sprayed rolled spread sponge surface dries hard finish relatively short time easy sand important nearly odorless have en countered some slight orange-peeling filler deglossed sanding used under Pactra Poly-U spray paint Try some ofthis filler Ceconite RC large models really something else Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Giant Scale/Beckman Continued page 45 probability represents high risk Infinitely serious consequences zero probability 100% probability no serious consequences both work out zero risk real world always somewhere between extremes Now consequences model striking someone extremely serious injury aspect part total Granted size speed weight etc can bear extent potential injury type model quickly get point seriousness high further increments meaningless means true measure risk going probability aspect leave model ground dont fire up engine can reduce probability very nearly zeroif its big enough model someone might get hernia trying lift never hear anyone suggest solutionfor models interested building flying Lets face hobby operateand/or watch operation ofminiature aircraft whatever size way operate determines probability factor break things down little further can say risk hinges two probabilities probability aircraft crashing does probability people property will involved Lets take lookat second prob ability go out ourselves middle desert flying can reduce almost zero have already accepted risk ourselves bad idea initial flight state-of-the-art projects like Bob Campbells B-29 fact such project know has handled exactly way dont necesssarily mean literal desert just some facility space enough allow plenty leeway uncertainties untested airplane Let give some examples witnessed know during past year May 1981 Don Godfrey test flew B-25 inactive airport near Scranton test flights successful no time significant risk small number people present wish June 1981 present Dick Hersheys Grumman Goose flown Clearlake California case lot spectators passersby adjacent road lake shore effective barrier Except two boats pilot photographers enough space between operation people property Unfortunately case first probability raised its ugly head Dicks magnificent Goose now Gone Gosling Four days later Phil Karafilis made what turned out flight Douglas A26 Merwin Ranch during Sacramento Giant Scale Fly-in original plan make first flight evening after days flying over participants left participants selves objected wanted see BIG BEAUTIFUL BOATS boats designed air-cooled Industrial Version QUADRA $13950 comes complete gas tank pull-rope starter engine cowl Other gasoline engines can used J-5 PICKLE FORK HYDRO UNLIMITED 6 foot 5 inch long 3 foot beam mahogany plywood kit spectacular sight water Get giant R/C Boating Fun wood kit16950 Above kit c/w J-5 DRIVE-TRAIN23950 J-5 DRIVE-TRAIN includes clutch fit Industrial QUADRA flexible coupling steel propeller shaft bronze bearings shaft casing strut brazed place rudder dia rudder bar 2 bronze bearings control arm mounting plate necessary bolts nuts collars drive-dog $9950 J-5 THUNDERMARINE 50 snarling speeding fiberglass hull capable running in-foot waves Deep V design 20 beam Fiberglass hull deck kit ply motor mount silver deck moulding$13950 Above k c w 5 DR VE TRAIN$20950 Shipping Charges *J -5 ENTERPRISES Included US & Canada W P0 Box 82 Belmont Ontar 0 NOL 180 phone 1 519-644-0375 J-5 HYDRO UNLIMITED 7-foot long 3-foot beam mahogany plywood boat kit Tunnel-Hull thrill run wafer thrill watch wood kit$14950 Above kit c/w J-5 DRIVE-TRAIN $21950 132 Model Aviation
Edition: Model Aviation - 1982/08
Page Numbers: 42, 43, 129, 132
Radio Control OLD- TIMER Dee B8 Mathews Ugly Pretty months Old-Timer designed George Austermann 1935 First flown Logan Field Baltimore Baby Cyclone all-white uncolored ship damaged upon landing George Kramer Brothers large hobby distributor time returned King Burd car flew no repaired final-painted classic scallops seen old ads Kramer Bros. through subsidiary Burd Models sold kit $300 Though advertised rather extensively total about 75 kits sold Though very few gaspowered kits market 1936 obviously fewer engines bands modelers As matter fact ads suggested building King Burd powering rubber until builder could afford engine Danny Sheelds has long-standing love affair King Burd provided us much information Danny built kit 1936 13-year-old since father made $2000 week never could afford engine needless say Danny Baltimore SAM members feel King Burd best flying five-footers around number King Burds have built flying regularly Maryland area first trainers RC neophytes Several years ago Danny Gene Crimm produced limited run kits consider ing doing again Included possibilities 1-sized enlarged version suitable 40 power U_ 3 A- ____ di SPAN 59 CHORD 9 936 BURD MODELSKRAMER BROS 0369 __________________SECTION-CLARK V FULL SIZE INCHES Fl As can seen photos King Burd has exceptionally simple structure obvi ously easy build Note natural hinge lines empennage wing tip construction Somehow dont think original methodlooks awfully familiar Anyhow King Burd strikes us splendid design enjoy flying building Old-Timers Contact Danny Sheelds 3 Cinnamon Circle Randallstown MD 21133 information kit plans Always enclose SASE writing mention saw Model via don No surprises young man holding lovely General Skyfarer FF Rubber Scale model other Dr Paul MacCready Although photo April 1944 issue Air Trails model actually built flown 1941 part Pauls successful bid winning National Junior Sweepstake Championship Dr MacCreadys Gossamer Condor Gossa mer Albatross Solar Challenger have thoroughly documented various publications Old-Timeratthe82 Nats John Pond has ad vised willing organize run SAM events Lincoln Old-Timer CLand FF events will held Nats CL FF sites O-T RC events will flown lovely Big Bear Lake facility Omaha official Unofficial events schedule check bulletin board AMA Nats HO 42 Model Aviation Gene srlms llng uurd bullS couple ot years ago ualtlmores vanny neelU5 kitted some about three years ago Original design first Gas models never big seller back 30s Doc has history column Sheelds photo April 1944 Air Trails photo young Paul Gossamer Condor MacCready General Skyfarer Rubber Scale model modelers have detected concepts obviously derived model airplanes construction aerodynamics Examples obvious exterior wire bracing commonly used Indoor models large-diameter slow-moving props commonly seen Rubber Power duration models heat-shrink Mylar coverings perhaps interesting unconventional feature use stab tilt control lateral movement features much model aircraft full-scale practices should feel justifiable pride Mac Creadys accomplishments did get aircraft development through hobby utilized some its basic principles construction flying Gas oil February column detailed some development testing doing electronic ignition systems Bill Carpenter CHS Electronics Included two photos some early findings have now using units several applications highly impressed Features particularly appreci ate absolutely noth ing need cut bolted onto engine black bO\ totally selfcontained coil condenser chip etc idiot-proof method setting up unit CHS unit available smaller size better suited engines 15 29 range well original unit will run chainsaw engines Some sample performance numbers K&B 40 Stock No 8011il x 6 Top Flite Super Maple8500 rpm five minutes per ounce regular gas Klotz oil results really shocked us 8500 rpm 16 x 6 Top Flite two-and-one-half minutes per ounce OS Max 90 smaller unit will give about one-and-onehalf hours sparks 250 mAh battery pack larger 500 mAh setup will spark Continued page 129 Iat NORTHERN CALIFORNIAS LARGESTU ISCOUNT HOBBY SHOPI I well FUEL New high film strength lubricant U increased power engine lifeI Highest quality ingredients I II II II II II II II II II IHOURS Monday thru Wednesday V-JU-O iU lflurSday b 1-riday YZJU-6-OU L m Saturday 930-600Sunday 1200-500J m ugust 1 982 43 uoc-s neen playing around transistorized ignition systems again Heres K&B 61 prototype system tells us about month Swings 12-6 Top Flite atg500 rpm runs 31/2 mm ounce regular gas Klotz oil look like timing marks spinner backplate Ignition electronics black box next fuel tank Ni-Cd battery pack just behind Sensor detects spinner-mounted impulse magnet engine mounting lug Its wonderful Leisure electronics exquisite Playboy kitsuitable Iortheir05 electric system add-on prop drive Wood parts superior Note plans show rare Cabin Playboy configuration too MAXIMIZE YOUR FLYING TIME WITH ELECTRIC EAGLES FLIGHT TIMER ~ecf Tic Flight Timer $2495 postage Add 6% sales tax Calif res 25 Weeping Wood Irvine CA 92714 worlds first LCD Countdown Timer alarm mounts transmitter INCLUDES Easy set 72 hour maximum timer 30 second alarm easy-mount slide-in tray extra battery extended use highly visible display bright sunlight also has travel alarm clock calendar H0bbV Horn 4 WE ARE PLEASED TO ANNOUNCE acqcisition Hal Osborne Plans Service Included over 190 eaceptionally high quality Scale plans drawings Cowplele list 50 PP see below COMING SOON enpect have Partial Kit Snow White Antique Gas Model 193t1 available near future pro duced Gene Wallock P W Model Service Price Availability date known liwe Watch ad information OLD TIMER KITS Partial Full Kits P 0 1 Seni Kilo- --Cot Porta Kilo --Olochine Cal 1939 Comet Zipper 54 Spon plon inetpricel $3309 1939 Trenton Terror 72 Iplon md price $2t09 93f Berkeley B occaovcr 04 plan net price $2559 Other P & N Seroi Kits oVaitolle 12100 net lricv 1939 Comet Clipper MK $19 25 1932 tialtaire Sportster $3109 t939 Scientific Mereary $2899 1935 Miss America $3159 1940 Playboy Jr 51799 t94t Playboy Sr 2225 1938 Pomerhoaoe $2500 1949 Ranger $1890 1940 Comet Sailplane $5950 1949 So Long $1750 1939 Kordo Wakefield $1975 MIDWAY MoDEL CO Fall Partial Kiln 1941 Air Traits Sportoter 50 Poll Kit $3590 1938 Pomerboase 55 Span Poll Kit $3596 1936 Flying Quaker 84 Semi Kit pSo md $2 ISO t937 Quaker Ploob 67 Semi Kit plan P01 $1750 1937 Long Cabin 79 Semi Kit tplan loot $2000 1940 Ccoaet Sailplane 36 020 engines $1495 1935 Miso America 30 020 enginvo 51295 OIlier Mfg Old Timcr KilO--Full Kilo 1941 Playboy Senior Tyro pan $4995 1938 Bay Ridge Mike ITyro 48 Spool 0471 $2995 1939 Korda Ilakefield t4Ks 44 Itubber $1650 NEW Playboy Sr 67 geared Electric 95s Spociat introductory Price IReg 54495- $3006 LEISUIOE 05 Geared Sys 19190011 Spnnialano*$7500 ASTIIO 075 XL Sys m/reducert Beg $110 Sp0 $0000 ASTIIO AC DC Charger $6995 ISpeciol O0OOO0$4755 LEISURE IIIGITAL Charger 5111 00Speciol $75 00 SHIPPING & HANDLING Op $800 add 5150 $901 52000 add 5230 50O1 59500 add 5300 $9501 57000 add 5350 acer 57000 add 54 00 CA Addressees add 65 laO Send MO VisaMCI8 Kop Check allow up 30 days CK clearance COD Eaact Charges plus $150 Hdl ICash Only 50 Page CATALOGUE Plans list $200 [A copy mill sent tree--when requested aith order HOBBY HORN hobby specialtiesa PO Box 30011 Seal Beach Ca 90740 17191 8940323 lEast narnings recorderactivates S rings 1/8 SPORT SCALE PLANS 72 WING SPAN DESIGNED FOR SINGLE 40-45 SCHNEURLE ENGINE PRICE $1950 VOGEL AVIATIONBOX 54 RESEDA CA 91335 I4DDEL DIV seventh Ed Holder ninth Larry Pettyjohn Speaking F3 B US team-selection finals planned Joliet IL Airport Labor Day weekend same site 1981 LSF Tournament held See Good Lift Dan Pruss RR 2 Box 49D PlainfiekL IL 60544 RC Old-Timers/Mathews Continued page 43 longer receiver batteries will listen No interference Pro-line Kraft Royal World Cannon units Speak did have aileron glitches long leads Airtronics cured separating two battery packs bit extremely impressed units have painstakingly developed perfected Bill Carpenter now entering full production details units available setup services forth send $100 large SASE CHS Electronics PO Box 1732 Riverton WY 82501 Dont send itto Some discoveries Docs workshop Per haps everyone knew have found roughening edges clear butyrate sheet windows sandpaper greatly improves flow adhesion thick cyanoacrylate glue just edges will concealed lightly sanded *220 paper adhesive seems flow along edge sticks much better still prefer Wilhold H/C 56 white glue filling gaps butt edges however Another helpful discovery use Sig Stripe Rite tape mask paint edges Unlike con ventional masking tape vinyl electrical tape Stripe Rite has fairly low tack prevents often sickening departure underlying paint removed seems seal edges well better other tapes little bleed-through dope epoxy polyurethane Stripe Rite available 9A-in I-in widths case didnt know does com pound around small radius too well use electrical tape curves remove very slowly new Playboy kit Roland Boucher pro nounced Boo-shay recently sent us sample Leisure Electronics down-scaled Playboy Senior kit As can see photo parts sawn excellent balsa ply strip wood well graded overall superb quality shaped piece pre-cut no die crushing hardware package com plete plans well done rarely seen Cabin Playboy also shown plans Although designed around Leisures LT 50 electric motor Astro prop drive model would also joy build delight fly three channels glow diesel engine 1 5 cc range competition model would something else SAM-legal 19 in3 fire-breather like Duke Foxs new BB 19 Playboy Sr kit should available local friendly hobby shop now write Leisure 11 Deerspring Irvine CA 92714 information Tell Model Aviation sent ya Something really large Old-Timers Back tn 1976 first started pounding drum polyester sheathing covering Continued page 132 August1982 129 Stainless Steel HARDWARE CONTIOLINI Thu PROFILE COMBATRAT WIDE ft NARROW WEDGE 15 -- 6 oz Capaciries UNIFLOW & TINDD Custom Dliii lush Ingredients detailed brochure50C stamps/check CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405 Remember Aerotrend source fine modeling hardware also offer complete line wood fiber glass field caddies other acces sorIes Send SASE free catalog todayDEALERS INVITED AEROTREND PRODUCTS 44W Prospect St New Haven CT065151 L1M3jJZSW LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW IMPROVED THROUGH FOUR YEARS OF PRODUCTION THE G/F SERIES IS UNEQUALED FOR PERFORMANCE & DURABILITY AVAILABLE WORLDWIDE THROUGH 131 DISTRIBUTORS WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 AIIISCRIW PREStNTS BALSA STRIPPER A95 AT YOUR DEALER PRECISION STRIP WOOD TO V x INS FROM BALSA SHEET ALSO FOR DRAFTING AND PHOTO MATS USES TYPE II BLADE SUPER TOOL T PRICE WINDSOR PROPELLER CO 384 Teaconi Ct. Santa Roaa CA 95401 medium much confusion developed over what available fabric stores Some dressliner materials worked very well others totally unsatisfactory greatly pleased see Sig begin market KoVerall its always-reliable chemical make-up no secret such materials have used covering full-sized aircraft years Such materials Stitts Razorback Ceconite much common covering fabric aircraft old linen materials attraction mostly weather resistance stability strength heat- shrinkage drum-tightness Jerry Nelson has now introduced lightweight polyester called Ceconite RC use model field heavier weight easily filled obviously stronger version Sigs Koverall sheathings have completed rather extensive application finish testprogram Ceconite RC can recommend reservation found could applied clear dope conventional silk technique applied heat over dried aliphatic resin Coverite Balsarite Filling could quickly done two three coats nitrate clear butyrate tended peel Other filling techniques such K&B primer Hobbypoxy filler also successful unable find paint didnt adhere well Equally interesting water-soluble filler Nelson introducing called Ceconite Filler dark grey liquid can applied much like latex wall paint self-leveling can brushed sprayed rolled spread sponge surface dries hard finish relatively short time easy sand important nearly odorless have en countered some slight orange-peeling filler deglossed sanding used under Pactra Poly-U spray paint Try some ofthis filler Ceconite RC large models really something else Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Giant Scale/Beckman Continued page 45 probability represents high risk Infinitely serious consequences zero probability 100% probability no serious consequences both work out zero risk real world always somewhere between extremes Now consequences model striking someone extremely serious injury aspect part total Granted size speed weight etc can bear extent potential injury type model quickly get point seriousness high further increments meaningless means true measure risk going probability aspect leave model ground dont fire up engine can reduce probability very nearly zeroif its big enough model someone might get hernia trying lift never hear anyone suggest solutionfor models interested building flying Lets face hobby operateand/or watch operation ofminiature aircraft whatever size way operate determines probability factor break things down little further can say risk hinges two probabilities probability aircraft crashing does probability people property will involved Lets take lookat second prob ability go out ourselves middle desert flying can reduce almost zero have already accepted risk ourselves bad idea initial flight state-of-the-art projects like Bob Campbells B-29 fact such project know has handled exactly way dont necesssarily mean literal desert just some facility space enough allow plenty leeway uncertainties untested airplane Let give some examples witnessed know during past year May 1981 Don Godfrey test flew B-25 inactive airport near Scranton test flights successful no time significant risk small number people present wish June 1981 present Dick Hersheys Grumman Goose flown Clearlake California case lot spectators passersby adjacent road lake shore effective barrier Except two boats pilot photographers enough space between operation people property Unfortunately case first probability raised its ugly head Dicks magnificent Goose now Gone Gosling Four days later Phil Karafilis made what turned out flight Douglas A26 Merwin Ranch during Sacramento Giant Scale Fly-in original plan make first flight evening after days flying over participants left participants selves objected wanted see BIG BEAUTIFUL BOATS boats designed air-cooled Industrial Version QUADRA $13950 comes complete gas tank pull-rope starter engine cowl Other gasoline engines can used J-5 PICKLE FORK HYDRO UNLIMITED 6 foot 5 inch long 3 foot beam mahogany plywood kit spectacular sight water Get giant R/C Boating Fun wood kit16950 Above kit c/w J-5 DRIVE-TRAIN23950 J-5 DRIVE-TRAIN includes clutch fit Industrial QUADRA flexible coupling steel propeller shaft bronze bearings shaft casing strut brazed place rudder dia rudder bar 2 bronze bearings control arm mounting plate necessary bolts nuts collars drive-dog $9950 J-5 THUNDERMARINE 50 snarling speeding fiberglass hull capable running in-foot waves Deep V design 20 beam Fiberglass hull deck kit ply motor mount silver deck moulding$13950 Above k c w 5 DR VE TRAIN$20950 Shipping Charges *J -5 ENTERPRISES Included US & Canada W P0 Box 82 Belmont Ontar 0 NOL 180 phone 1 519-644-0375 J-5 HYDRO UNLIMITED 7-foot long 3-foot beam mahogany plywood boat kit Tunnel-Hull thrill run wafer thrill watch wood kit$14950 Above kit c/w J-5 DRIVE-TRAIN $21950 132 Model Aviation