Radio Control: Old-Timers

Old-Timers Dr DB Mathews SECY PACIFICOASTER Elbert Joe Weathers passed away recently mentioned fact column noted another designs use Old-Timer Month OTM subjectand still another being de veloped publication As understand Pacificoaster going sub ject construction article authored Dave Benepe however some delays have apparently crept project Dave Ive decided run Pacif icoaster time sort preview Pacificoaster odd publica tion history construction article used Bill Winters Model Aircraft Plan Book one-time-only publication came out winter 1946 Sadly note Bill Winters great hopes publication never bore fruit introduc tory editorial proclaimed book four will published year vital trivia can brought mind read pub lication credit Model Airplane News 1946 stated John Pond plans catalog Rumor has kit pro duced West Coast have no firsthand knowledge Strangely Joe Weathers resurrected design published modified form November 1956 issue Model Airplane News Pacificoasteras originally con ceived builtwas singularly unique Free Flight model Bill Winters editorial note Plan Book states Pacificoaster combines weight high power small ship power plant new powerful Orwick did well Nationals wing loading 18 ounces per square foot combina tion power weight achieve controllable high-performance realistic airplane deserves attention model seen first time considered just another cabin Gas job late-Forties type would expect powered Class B engineand wings look too small As noted above original Pacif icoaster flown Free Flight mighty Orwick 64 power whereas later modified-for-RC version considerably modified ignition system its access hatches eliminated wing moved rearward 3/ allow 0 PACI FICOASTER IPOWERORWICK 64 OR EQUIVALENT _______I I I i/ 1/ P ____A NOTE WING HELD ON WITH INTERNALLY MOUNTED HOOKS/RUBBER BANDS BALSA BLOCKS SCALE IN INCHES ORWICK64012345678 10 IS 14 165024hi MOUNT SHOWN 17yearoid Greg Benepe proudly displays Elbert Joe Weathersdeslgned Paciflcoaster begin building 12yearoid some help Dad hard parts Built Free Flight Veco 45powered model later converted 3channei RC photo taken 4 years ago lighter/smaller engines verti- allow much larger movable surface cal stabilizer structurally changed beforethe old trim tab 52 Model Aviation MAN article Joe stated number Pacificoasters have built RC East adding foot span good model Atwood Triumph engine power recom mended engine RC version 29-35 cu Ive set marked-up weath er-beaten drawings 1946 version files years thinking enlarged wing would won drously-pretty delightful sport model three RC channelsor four chan nels dihedral angle reduced am delighted Dave Benepe has proj ect under way anxiously await its pub lication anyone wants encourage Dave find out details ad dress 5901 Wedgmont Circle Ft Worth TX 76138 Buzzerd mail response KenHi Buzzerd has exceeded generated Kraft BiFli piece July 1983 column seems lesson somewhere Hal deBolt tells us will soon start ing column MAN Golden Era RC Needless say have encour aged him reports response have getting OTM subjects era Some letters have informative interesting will share some readers First Bob De Mond Panama City FL wrote absolute amazement seeing what perceived old Buzzard photos Seems Bob donated Russ Berrera collection 1973 often wondered over years what happened old relic after Russ death now am delighted discover found such honored final resting place AMA model museum Actually built two Buzzards kits middle Fifties another after retiring Air Force 1969 museum version flew Max 15 throttle rudder Ed Osborn Painted Post NY sent photos built 1955 just purchased kit Babcock radio compound Bonner escape ments a-one a-two remember Power McCoy 29 throttle Due college never finished Buzzerd saw ad Continued page 138 KDAVE ROBELENS PRONTO AND SUPER PRONTO HIGH QUALITY 48 SPAN KIT FOR 09 TO 25 ENGINES FEATURES Alowwingdesignwdhhgh wing stability excetent inverted performance Genfe tie novice ttai expert versatile periorniafEe 4-6 hour rapid-fire assembly lix beginner Precision machine-cut SIG belsa poa1 spruce Roiled full size plans showing Itie cixnplete wing Step-by-step instuctors f Cr easy assembly Formed main landing gear Exceptorlal small lekf performance May flown ito 3 ctrannels Tested reconimended approved PJC Mixleler Magazine Mixiel Aviaton -July 1984 AT LAST Wink CENTO FEE MUEL IMUIEK Extension Work Bench oard PrSe Snoptob Tool Holders Poeer Outlet Strip rind Filth Holder jSeiogounnLanro o Adirixtoble Stutdo*rumrpunt FroWn Hefi $3995 pff nta Refi $4995 Deder anger fiun yaw isdiufer net hi stack ict Ii dealer older direct br post paid delivery Virginia residents add 4B/ sales tax TIDEWATER HOBBY ENTERPRISES Route 1 Box 241D Lanexa Virginia 23089 Pnone 804 966-5092 2 STANDARD WORKBENCH Fdr titosH teqcsitiog larget wOtk surldce 3d e 48 e 30 beech otters tame stutdyconsttuCtioet3hdtaStefllog system Warh Center teaTuted abode CompteTe pittable Bomesote top doet particle board base end accessooeoat iltusttdtedOPIh $16995 Latget sizeceodilable special order February 1986 53 Jim Bulce proud Shereshaw designed Cumulus Gorgeous ship covered red silk powered OS 50 Dccs April 1978 column featured 3view Photo Dr Jim Bo Buice Young Joe Stabinsky Kenhi Buzzerd Babcock RC outfit Photo taken 1955 Shereshaws Commodore originally Scientific Models kit terrific scaledup example made Al Osgood Scene Ft Worth Plainsmens Pyramid Acres flying site Photo Bo Buice FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST SNORT $119 RC SNORT Si 99 Si Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow FOX PLUGS THOSE WHO WANT THE BEST Visa MasteCard accepted F 0 X MFG CO 5305 TOWSON AVE FORT SMITH ARK 72901 15011 546-1656 Selee pout space storoge problems eith new compact incur unction aerk Center ttutdp aluminum modular benches thet Cart tailored tepeut lodhiduet needt Ustoga unigretesteningshstemtheYCan essembted disassembled minutes No nut bolts lotus dish Expansion fasteners secute toints tightly ldedltetapattmentdeelletiedetd easy disassembly tot storages nooded Focer Centet measums tW 5 Id 3bH perfect held end stem smell power tools Help ttO99b thee wish add Extension Workbench pinable Hemesote top deer particle boad base ddr/Wa t40 2gSHcempletemith pegheatadret bduxtereotpartshinsCooetinghlnr holder tool holders let $tOB95 BOut 0tH eheels con OH edded needed tot easy ,uee $475 Hise dodilable grounded teceptacle outletS tot $9990 end ediustable lIght tot $1995 Lamp colors Bed White Black PATrERN SHIP AS GOOD AS YOU ARE. AYBE BETTER Tick Technician totally functional design combines great flying characteristics ease construc tion good looks first quality kit throughout FIBERGLASS FUSELAGE FOAM CORES BASIC KIT BASIC HARDWARE PKG BASIC KIT. $ 9495 DELUXE KIT 495 See Dealer First RC ScalelWischers Continued page 135 slide-in assembly brass fill tube can have its inner end bent down close proximity V-bottom fuel can pumped out well tank same location tank can made very wide completely fill space wide fuselage Aerobatics affected tank shape weighted pick-up tube follows fuel around inside tank regardless its shape completed tank should cleaned internally lacquer thinner remove solder paste residue Check leaks plugging openings length silicone tube placed re maining tank tube used pressurize tank lung power tank submerged water Look bubbles As alternative supply pressure same manner pinch tube Wait minute two release tube ALL OF THE ABOVE PLUS ALL REQUIRED BALSAS MOTOR MOUNT AND HARDWARE L&L MODEL MFGBV PRODUCTS 513 385-0912 7342 Applerldge Court CincInnatI Ohio 45247 listen rush escaping air Thin brass will balloon slightly pressur ized doesnt stretch leak determine size tank needed calculate capacity formula US fluid ounce equals 1805 cu Cal culate square-inch area end multiply tank length find content cubic inches Divide 1805 find content fluid ounces enough Modify tank dimensions needed until capacity equals need Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Old-Timers/Mathews Continued page 53 Auburn NY paper lost RC model called Carl Spare sold him $50 logged hundreds successful flights itand perhaps after moved away good old Dakota Joe Wagner sent very interesting historical overview Buzzerd manu facturer take anything Joe might want use MAN column just have share some highlights years years Ive asked anyone might know just Ken KenHi Hi obviously Hi Johnson Joe tells us Ken Ken Adams investor previously backed Bill Atwood manufacture Champion series engines Hi Johnson coworker Joe Wagner Veco operation Inci dentally company actually Henry Engineering Coand very brief time mercifully called HECO Hi falling out Gil Henry left enter kit business himself Ken Adams financial backing KenHis early kits series rather undistinguished CL models Panther other cats directly compete Vecos Indian series second wave KenHi kits cluded Badger Buzzerd shared common wing being Free Flight other RC about same time Joe Wagner feeling grossly overworked underpaid decided move over KenHi big increase pay decrease work summer 1953 Joe immedi ately set work correct bad diecutting mentioned attempt lighten up structures CL designs Hi trouble CL designs selling well Buzzerd Hi placed much hope proving disaster Hi personally hand-picked packed dozen two Buzzerd kits gave modeler friends Joe doesnt know completed does recall very nega tive responses modelers did such Colby Evett Meanwhile Joe busily trying get Buzzerd kits up quality wood quality terrible because Hi re fused buy balsa same source Veco After took over management High Performance Twin Ducted Fan Airplane Kil Length 1075 span 558 Weight 18-22 lbs Gear Tlrgear retracts mschsnical sir kit product yeats reeearch development keep scais size appearance lot help front good people Heals Air Force Bass Cai,nia 5R71 base Lockheeds beet representative have enact 1112 scale kit Being wood flyable true scale kit available F104 cockpit kit off acale item no can get interior SR7l yet note beginners kit bat very nice build finished product AWESOME Eapect speeds ova 150 ntph 80 parachute option vary nice too full 22 picture photo pelt available real scale buffs Have fun / Designed Turbax Ill Fans4-6 Channel Radio 46 80 Oucted Fan Engines other parto acceosorisa build ropair plane availablo Call write information needed B-Line PA.. UisIsa PO Box 1231 101 AtkInson St RosevUl, CA 95661 AvaNsbh Ease F4 Pheata Psettmer F-Sb Sabre oFS Crusader 0112 lsckcat 916 786-6530 QUAY BARNR MODELS -14 size Falok Rivets aEPOXY/OLASS/FOAM/BALSA SEMIKIT $11995 CONSTRUCTION WITH DRAWINGSKIT$15495 AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF 216 777-6172 SCALE FULL OR SEMIKITS e8 10 lbs weight 790 sq wing area 60 2 stroke 12 4 stroke ekit prices plus shipping ecredit cards welcome Ohio residents add 61 % Commia Wind SEMI-KIT $10995 KIT$14495 cOther kits toning 27100 Butternut RidgeNorth Olmnsted Ohio 44070 138 Model Aviation DELUXE KIT 8~LIN rhr Retail price 348 Factory direct price 26250 New Breed SachslDolmar test weight hand start ready-to-mount engines market Smoke System$1 995 Holiday Special 31 $27500* 34 $34500 37 $35500 42 $37500 flywheel slot ig Engines Complete 31 w/flywheelNothing Extra Buy FeatureS Lightest weight Sachs customized newest German engines ler t ting Bolts sure Tap uretor CDI Ignition 0 48 V Ignition Peck ty Switch lt Hub stor Spark Plugs er Warranty Faulty Parts end Workmanship lable option Autometic spark edvence 1*23951 TG Mtg 857 High Mountain Rd North Haledon NJ 07508 e 201 427-3845 operation sold uncut balsa planks surfboard maker Hobie Alter burned rest bought new wood International Balsa later information explains wood die-cutting kit poor yet Bob DeMond thought kits exceptional Joe concludes closed doors KenHi late 1955 Buzzerd kits still unsold Nobody ever wanted far know burned dont think 50 kits ever sold would appear writer what have design really too stable single-channel use incredi bly complex its structure kitted low-quality form nega tives could corrected contemporary three-channel design scratchbuild er produce very worthwhile sport soarer Time will tell Finally have sent set com plete building drawings including cut out pieces couple fellows would like get hands persons genuinely interested building Buzzerd dont want hassle going plans business interested can send SASE information No orders please Remember endless hours enjoyment leafing through catalogs manufacturers kids absolutely wore print off pages dreamed somedays hads dis tinctly remember Berkeley catalog worn out Scotch tape Scotch tape Well golly its now possible buy reproduction 1939 Comet Model Alrplane Catalog 36 pages 5A x 8/4 have reproduced fun trip back memory lane would also make ex cellent prizes and/or gifts Send $6 copy $30 six Norman Jacky 20842 Catamaran Huntington Beach CA 92646 Norman offers l0o discount AMA members SAM memberships Several readers have written ask have received membership cards issues SAM Speaks after have joined renewed problem stems breakdown membership department has now rectified joined renewed have no response send copy cancelled check Sal Taibi 4339 Conquista Ave Lakewood CA 90713 Also SAM Champs business meeting June 26 1985 voted change SAM dues cycle January 1 through December 31 means memberships need pay six-month membership correct dates Sal asks everyone send either Xerox copy membership card card itself inconvenience will renew six months dues $3 send $13 renew through December 31 1986 114 years As mentioned last column current 1984-85 rule book rules will continue SAM bible through 1986-87 failure Electric rule proposals made possible have lost given yours away send $1 Sal new Rule proposals 1987 ballot should sent coordinators before July 31 1986 order considered inclusion 1987 ballot Continued page 144 IN STOCK FOR IMMEDIATE SHIPMENT NEW RA 50S$20495 New Osedre 36 CDI 13-bearinel$11495 Rag 0usd 35 $1t454 Srisghelle flywheel$12495 Reg Quedre 35 Power Assenbly Only$6460 QUADRA REPAIR$1600 pbs pens Jiw Mess ERCOUPEPLANS $2395 KIT $23995 JIm Meeser TOMAHAWKPLANS 82396 KIT $25895 Ji, Meeeers-BALLTRAINERFLANS $2395 KIT $21496 Jim Meeser ACROBATPLANS $1996 KIT $22495 New ZENOAH 13-23 $13996Z$NOAH 13-39 $ 999$ SACHSOOLMAR31 reg $2469937 9 $29506 FLOATS 48j114 ecelecores $2196complete kit $4795 1$ WWI WHEELS $2596 P1K Spring sterter$2495 PLANS SUPER STEARMAN 1/4 Godfrey$2595 1I3TAYLORCRAFTor 1/3 CUP NeIitz$3996 VOLKSPLANE 1/3 Chicken CherEel8239$ COLORED INSTRUMENTS 151 Cederleldge SonIc fr$296 t$1396 SERVOS H366 42oe $1296 World S-iS lerse models $3995 PROPS sines ZINGER TOP FLITS DYNATHRUST 29% OFF US Quedre FUELTANKS16 $696320. $795 FIBERGLASSARROWSHAFTS516532 long$181000 24-Hour Service. Add 5250 postage Seed Bank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS Valley View Dr Box 43 Allegeny NY 1470$ PAC MODEL SUPPLY 211 Chase Avenue Waterbury Cl 06704 203 575-0916 Flight-Proven DesignsTOEPe 203 3931990 Balsa Construction 5-SIb Cessna 15040 Powered 62 Construction 110-15 hrsl Stable Fliers Mooney 40 Powered 62Scale Like Appearance Slow Flying Capabilities Cherokee 40 Powered 60 4ges ea plus $250 UPS Cherokee eConteet Proven -123 place Ken Barnes ~ plusSOO shipping Cessna 16025 Powered 50 plus $250 UPS NEW Firemaster Bipe58 8/e7 lbs. 80 Powered 6995 llntroductory Pricel New Pack Kat 25 powered sport flyer low wing span 45 Intro Price $2600 MasterCard Coming SoonSO Powered Pattern ShipsDealers Invited February 1986 139 31 wlelectric ignition34 wlelectric ignition Blbs2oz-5/eHPSIbs2oz-6HP 37 welectric flywheel ignition42 wlelec 1g NEW Slbn4oz-6A HPSIbs3oz-7HP Woody Woodman has appointed succeed Tom Acciavati Rules Coordinator Correspondence concerning RC Rules proposals should sent Woody 233 Longview Drive Bayville NJ 08721 stroker stuff likely readers growing bit weary 01 Doc four-cycle notes expense milking subject death let share some early observations new OS 20 four-cycle little gem well up expectations Im per sonally delighted First foremost much lighter previously-available small four-stroker fits Hayes AL 20 mount rather AL4O Performance slightly stronger 05 15 two-stroke less Fox l9BB Starting starter just easy larger strokers absolutely no need built-in choke havent installed Idle very low reliable though engine uses simple airbleed carb Preliminary flights seem indicate prop selection runs along lines found larger units diameter doesnt seem too critical pitch three-pound 400 sq sporttype model 9 x 5 wide-bladed prop seems slightly superior 10 x 4 Old-Timer-type model suggest 10 x 5 wide-blader starting point feelings about tachometers fuel expressed rather succinctly previ ous column taching 10500 rpm 9 x 5 Super M 10400 10 x 4 broke 10 x 5 before engine broken However suspect would read about 10000 rpm now engine sounds rich peak rpm sounds better lean bit over topso use tach already Dee B Mathews 8420 Nantucket Wichita KS 67212 suffer degree Such hard-wired noise will manifest itself glitches range-reduction motor running often shows up interruptions motor power control itselfin addition flight control glitches Often former reac tion much quicker occur lat terand makes matters worse on-off flow power motor can worsen noise situation caused first place thus increase least sustain noise-induced glitching Personally refuse use anything speed controls optically isolated However installation uses servo-activated switch instead speed control chances no metallic connection between on-board systems thing servo output arms wheels normally non-conductive plastic thats sufficient isolation job second thing can improve situation keep installations neat respect radio motor system wiring Separate two systems wiring other extent possi ble electrical noise motor system present wiringthe latter acting much like miniature transmitting antenna located close sensitive receiving system effective communi cation undesired on-board trans mitter/receiver greatly reduced small separation distances course sure-fire improvement could made eliminating brush noise altogethersomething thats readily possible Reducing noise possible accompanying photo shows very effective approach best knowledge scheme shown best possible noise-reduction method using capacitors As shown three capacitors used right near trouble spotthe motor brushes motor brush capacitively bypassed grounded single electrical contact motor housing again Basic Electricity recent columns weve talked about fundamentals voltmeter ammeter operation basic sensitive meter movementsthe parts move themselves both low-value voltmeters and/or current meters having limited stand-alone utility take useful voltage current ranges combined multiplier shunt resistors respec tively Multimeters nothing meter movement selection precision resistors arranged functions ranges available convenient box Finally emphasis placed using voltmeters measure voltage ACROSS parallel some componentsuch batteryand using ammeters measure current THROUGH componentsuch connected series motor Multimeters normally contain DC voltage current functions covered far example normally separate voltmeter ranges AC circuits such household circuits work using rectifying diodes separate multiplier resistors convert AC voltage equivalent DC voltages needed meter movement AC scales separate because marked slightly non-linearly make up non-linearity caused rectify ing circuit Ordinarily no use scales RC Electric pursuits since scales sure youre reading correct ones what ever Often AC scales color-coded help ohmmeter function multimeters often very useful tool modelers measures resistance scales 144 Model Aviation other have several installations RC Old-Timers/Mathews RC Electrics/Kopskiwere modified after first having Continued page 139Continued page 55flown stock motors results very convincingbig difference before/after in-flight glitching situation So have Ways break up noise path motor-to-receiver way reduce naturally-occurring noise itself Id surprised sug gestions didnt make very noticeable change better Electric fly ing enjoyment responding advertisers mention read about ModelAviation

Old-Timers Dr DB Mathews SECY PACIFICOASTER Elbert Joe Weathers passed away recently mentioned fact column noted another designs use Old-Timer Month OTM subjectand still another being de veloped publication As understand Pacificoaster going sub ject construction article authored Dave Benepe however some delays have apparently crept project Dave Ive decided run Pacif icoaster time sort preview Pacificoaster odd publica tion history construction article used Bill Winters Model Aircraft Plan Book one-time-only publication came out winter 1946 Sadly note Bill Winters great hopes publication never bore fruit introduc tory editorial proclaimed book four will published year vital trivia can brought mind read pub lication credit Model Airplane News 1946 stated John Pond plans catalog Rumor has kit pro duced West Coast have no firsthand knowledge Strangely Joe Weathers resurrected design published modified form November 1956 issue Model Airplane News Pacificoasteras originally con ceived builtwas singularly unique Free Flight model Bill Winters editorial note Plan Book states Pacificoaster combines weight high power small ship power plant new powerful Orwick did well Nationals wing loading 18 ounces per square foot combina tion power weight achieve controllable high-performance realistic airplane deserves attention model seen first time considered just another cabin Gas job late-Forties type would expect powered Class B engineand wings look too small As noted above original Pacif icoaster flown Free Flight mighty Orwick 64 power whereas later modified-for-RC version considerably modified ignition system its access hatches eliminated wing moved rearward 3/ allow 0 PACI FICOASTER IPOWERORWICK 64 OR EQUIVALENT _______I I I i/ 1/ P ____A NOTE WING HELD ON WITH INTERNALLY MOUNTED HOOKS/RUBBER BANDS BALSA BLOCKS SCALE IN INCHES ORWICK64012345678 10 IS 14 165024hi MOUNT SHOWN 17yearoid Greg Benepe proudly displays Elbert Joe Weathersdeslgned Paciflcoaster begin building 12yearoid some help Dad hard parts Built Free Flight Veco 45powered model later converted 3channei RC photo taken 4 years ago lighter/smaller engines verti- allow much larger movable surface cal stabilizer structurally changed beforethe old trim tab 52 Model Aviation MAN article Joe stated number Pacificoasters have built RC East adding foot span good model Atwood Triumph engine power recom mended engine RC version 29-35 cu Ive set marked-up weath er-beaten drawings 1946 version files years thinking enlarged wing would won drously-pretty delightful sport model three RC channelsor four chan nels dihedral angle reduced am delighted Dave Benepe has proj ect under way anxiously await its pub lication anyone wants encourage Dave find out details ad dress 5901 Wedgmont Circle Ft Worth TX 76138 Buzzerd mail response KenHi Buzzerd has exceeded generated Kraft BiFli piece July 1983 column seems lesson somewhere Hal deBolt tells us will soon start ing column MAN Golden Era RC Needless say have encour aged him reports response have getting OTM subjects era Some letters have informative interesting will share some readers First Bob De Mond Panama City FL wrote absolute amazement seeing what perceived old Buzzard photos Seems Bob donated Russ Berrera collection 1973 often wondered over years what happened old relic after Russ death now am delighted discover found such honored final resting place AMA model museum Actually built two Buzzards kits middle Fifties another after retiring Air Force 1969 museum version flew Max 15 throttle rudder Ed Osborn Painted Post NY sent photos built 1955 just purchased kit Babcock radio compound Bonner escape ments a-one a-two remember Power McCoy 29 throttle Due college never finished Buzzerd saw ad Continued page 138 KDAVE ROBELENS PRONTO AND SUPER PRONTO HIGH QUALITY 48 SPAN KIT FOR 09 TO 25 ENGINES FEATURES Alowwingdesignwdhhgh wing stability excetent inverted performance Genfe tie novice ttai expert versatile periorniafEe 4-6 hour rapid-fire assembly lix beginner Precision machine-cut SIG belsa poa1 spruce Roiled full size plans showing Itie cixnplete wing Step-by-step instuctors f Cr easy assembly Formed main landing gear Exceptorlal small lekf performance May flown ito 3 ctrannels Tested reconimended approved PJC Mixleler Magazine Mixiel Aviaton -July 1984 AT LAST Wink CENTO FEE MUEL IMUIEK Extension Work Bench oard PrSe Snoptob Tool Holders Poeer Outlet Strip rind Filth Holder jSeiogounnLanro o Adirixtoble Stutdo*rumrpunt FroWn Hefi $3995 pff nta Refi $4995 Deder anger fiun yaw isdiufer net hi stack ict Ii dealer older direct br post paid delivery Virginia residents add 4B/ sales tax TIDEWATER HOBBY ENTERPRISES Route 1 Box 241D Lanexa Virginia 23089 Pnone 804 966-5092 2 STANDARD WORKBENCH Fdr titosH teqcsitiog larget wOtk surldce 3d e 48 e 30 beech otters tame stutdyconsttuCtioet3hdtaStefllog system Warh Center teaTuted abode CompteTe pittable Bomesote top doet particle board base end accessooeoat iltusttdtedOPIh $16995 Latget sizeceodilable special order February 1986 53 Jim Bulce proud Shereshaw designed Cumulus Gorgeous ship covered red silk powered OS 50 Dccs April 1978 column featured 3view Photo Dr Jim Bo Buice Young Joe Stabinsky Kenhi Buzzerd Babcock RC outfit Photo taken 1955 Shereshaws Commodore originally Scientific Models kit terrific scaledup example made Al Osgood Scene Ft Worth Plainsmens Pyramid Acres flying site Photo Bo Buice FOX GLOW PLUGS FOR THOSE WHO WANT THE BEST SNORT $119 RC SNORT Si 99 Si Rhodium twice expensive platinum s better glow plugs space age insulator costs glass crack use Job shops couldnt hold tolerances wanted metal parts ourselves though less 1 plug 500 fails glow FOX PLUGS THOSE WHO WANT THE BEST Visa MasteCard accepted F 0 X MFG CO 5305 TOWSON AVE FORT SMITH ARK 72901 15011 546-1656 Selee pout space storoge problems eith new compact incur unction aerk Center ttutdp aluminum modular benches thet Cart tailored tepeut lodhiduet needt Ustoga unigretesteningshstemtheYCan essembted disassembled minutes No nut bolts lotus dish Expansion fasteners secute toints tightly ldedltetapattmentdeelletiedetd easy disassembly tot storages nooded Focer Centet measums tW 5 Id 3bH perfect held end stem smell power tools Help ttO99b thee wish add Extension Workbench pinable Hemesote top deer particle boad base ddr/Wa t40 2gSHcempletemith pegheatadret bduxtereotpartshinsCooetinghlnr holder tool holders let $tOB95 BOut 0tH eheels con OH edded needed tot easy ,uee $475 Hise dodilable grounded teceptacle outletS tot $9990 end ediustable lIght tot $1995 Lamp colors Bed White Black PATrERN SHIP AS GOOD AS YOU ARE. AYBE BETTER Tick Technician totally functional design combines great flying characteristics ease construc tion good looks first quality kit throughout FIBERGLASS FUSELAGE FOAM CORES BASIC KIT BASIC HARDWARE PKG BASIC KIT. $ 9495 DELUXE KIT 495 See Dealer First RC ScalelWischers Continued page 135 slide-in assembly brass fill tube can have its inner end bent down close proximity V-bottom fuel can pumped out well tank same location tank can made very wide completely fill space wide fuselage Aerobatics affected tank shape weighted pick-up tube follows fuel around inside tank regardless its shape completed tank should cleaned internally lacquer thinner remove solder paste residue Check leaks plugging openings length silicone tube placed re maining tank tube used pressurize tank lung power tank submerged water Look bubbles As alternative supply pressure same manner pinch tube Wait minute two release tube ALL OF THE ABOVE PLUS ALL REQUIRED BALSAS MOTOR MOUNT AND HARDWARE L&L MODEL MFGBV PRODUCTS 513 385-0912 7342 Applerldge Court CincInnatI Ohio 45247 listen rush escaping air Thin brass will balloon slightly pressur ized doesnt stretch leak determine size tank needed calculate capacity formula US fluid ounce equals 1805 cu Cal culate square-inch area end multiply tank length find content cubic inches Divide 1805 find content fluid ounces enough Modify tank dimensions needed until capacity equals need Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Old-Timers/Mathews Continued page 53 Auburn NY paper lost RC model called Carl Spare sold him $50 logged hundreds successful flights itand perhaps after moved away good old Dakota Joe Wagner sent very interesting historical overview Buzzerd manu facturer take anything Joe might want use MAN column just have share some highlights years years Ive asked anyone might know just Ken KenHi Hi obviously Hi Johnson Joe tells us Ken Ken Adams investor previously backed Bill Atwood manufacture Champion series engines Hi Johnson coworker Joe Wagner Veco operation Inci dentally company actually Henry Engineering Coand very brief time mercifully called HECO Hi falling out Gil Henry left enter kit business himself Ken Adams financial backing KenHis early kits series rather undistinguished CL models Panther other cats directly compete Vecos Indian series second wave KenHi kits cluded Badger Buzzerd shared common wing being Free Flight other RC about same time Joe Wagner feeling grossly overworked underpaid decided move over KenHi big increase pay decrease work summer 1953 Joe immedi ately set work correct bad diecutting mentioned attempt lighten up structures CL designs Hi trouble CL designs selling well Buzzerd Hi placed much hope proving disaster Hi personally hand-picked packed dozen two Buzzerd kits gave modeler friends Joe doesnt know completed does recall very nega tive responses modelers did such Colby Evett Meanwhile Joe busily trying get Buzzerd kits up quality wood quality terrible because Hi re fused buy balsa same source Veco After took over management High Performance Twin Ducted Fan Airplane Kil Length 1075 span 558 Weight 18-22 lbs Gear Tlrgear retracts mschsnical sir kit product yeats reeearch development keep scais size appearance lot help front good people Heals Air Force Bass Cai,nia 5R71 base Lockheeds beet representative have enact 1112 scale kit Being wood flyable true scale kit available F104 cockpit kit off acale item no can get interior SR7l yet note beginners kit bat very nice build finished product AWESOME Eapect speeds ova 150 ntph 80 parachute option vary nice too full 22 picture photo pelt available real scale buffs Have fun / Designed Turbax Ill Fans4-6 Channel Radio 46 80 Oucted Fan Engines other parto acceosorisa build ropair plane availablo Call write information needed B-Line PA.. UisIsa PO Box 1231 101 AtkInson St RosevUl, CA 95661 AvaNsbh Ease F4 Pheata Psettmer F-Sb Sabre oFS Crusader 0112 lsckcat 916 786-6530 QUAY BARNR MODELS -14 size Falok Rivets aEPOXY/OLASS/FOAM/BALSA SEMIKIT $11995 CONSTRUCTION WITH DRAWINGSKIT$15495 AND DATA FOR FORMULA 120 PYLON SPORT OR STANDOFF 216 777-6172 SCALE FULL OR SEMIKITS e8 10 lbs weight 790 sq wing area 60 2 stroke 12 4 stroke ekit prices plus shipping ecredit cards welcome Ohio residents add 61 % Commia Wind SEMI-KIT $10995 KIT$14495 cOther kits toning 27100 Butternut RidgeNorth Olmnsted Ohio 44070 138 Model Aviation DELUXE KIT 8~LIN rhr Retail price 348 Factory direct price 26250 New Breed SachslDolmar test weight hand start ready-to-mount engines market Smoke System$1 995 Holiday Special 31 $27500* 34 $34500 37 $35500 42 $37500 flywheel slot ig Engines Complete 31 w/flywheelNothing Extra Buy FeatureS Lightest weight Sachs customized newest German engines ler t ting Bolts sure Tap uretor CDI Ignition 0 48 V Ignition Peck ty Switch lt Hub stor Spark Plugs er Warranty Faulty Parts end Workmanship lable option Autometic spark edvence 1*23951 TG Mtg 857 High Mountain Rd North Haledon NJ 07508 e 201 427-3845 operation sold uncut balsa planks surfboard maker Hobie Alter burned rest bought new wood International Balsa later information explains wood die-cutting kit poor yet Bob DeMond thought kits exceptional Joe concludes closed doors KenHi late 1955 Buzzerd kits still unsold Nobody ever wanted far know burned dont think 50 kits ever sold would appear writer what have design really too stable single-channel use incredi bly complex its structure kitted low-quality form nega tives could corrected contemporary three-channel design scratchbuild er produce very worthwhile sport soarer Time will tell Finally have sent set com plete building drawings including cut out pieces couple fellows would like get hands persons genuinely interested building Buzzerd dont want hassle going plans business interested can send SASE information No orders please Remember endless hours enjoyment leafing through catalogs manufacturers kids absolutely wore print off pages dreamed somedays hads dis tinctly remember Berkeley catalog worn out Scotch tape Scotch tape Well golly its now possible buy reproduction 1939 Comet Model Alrplane Catalog 36 pages 5A x 8/4 have reproduced fun trip back memory lane would also make ex cellent prizes and/or gifts Send $6 copy $30 six Norman Jacky 20842 Catamaran Huntington Beach CA 92646 Norman offers l0o discount AMA members SAM memberships Several readers have written ask have received membership cards issues SAM Speaks after have joined renewed problem stems breakdown membership department has now rectified joined renewed have no response send copy cancelled check Sal Taibi 4339 Conquista Ave Lakewood CA 90713 Also SAM Champs business meeting June 26 1985 voted change SAM dues cycle January 1 through December 31 means memberships need pay six-month membership correct dates Sal asks everyone send either Xerox copy membership card card itself inconvenience will renew six months dues $3 send $13 renew through December 31 1986 114 years As mentioned last column current 1984-85 rule book rules will continue SAM bible through 1986-87 failure Electric rule proposals made possible have lost given yours away send $1 Sal new Rule proposals 1987 ballot should sent coordinators before July 31 1986 order considered inclusion 1987 ballot Continued page 144 IN STOCK FOR IMMEDIATE SHIPMENT NEW RA 50S$20495 New Osedre 36 CDI 13-bearinel$11495 Rag 0usd 35 $1t454 Srisghelle flywheel$12495 Reg Quedre 35 Power Assenbly Only$6460 QUADRA REPAIR$1600 pbs pens Jiw Mess ERCOUPEPLANS $2395 KIT $23995 JIm Meeser TOMAHAWKPLANS 82396 KIT $25895 Ji, Meeeers-BALLTRAINERFLANS $2395 KIT $21496 Jim Meeser ACROBATPLANS $1996 KIT $22495 New ZENOAH 13-23 $13996Z$NOAH 13-39 $ 999$ SACHSOOLMAR31 reg $2469937 9 $29506 FLOATS 48j114 ecelecores $2196complete kit $4795 1$ WWI WHEELS $2596 P1K Spring sterter$2495 PLANS SUPER STEARMAN 1/4 Godfrey$2595 1I3TAYLORCRAFTor 1/3 CUP NeIitz$3996 VOLKSPLANE 1/3 Chicken CherEel8239$ COLORED INSTRUMENTS 151 Cederleldge SonIc fr$296 t$1396 SERVOS H366 42oe $1296 World S-iS lerse models $3995 PROPS sines ZINGER TOP FLITS DYNATHRUST 29% OFF US Quedre FUELTANKS16 $696320. $795 FIBERGLASSARROWSHAFTS516532 long$181000 24-Hour Service. Add 5250 postage Seed Bank Check Money Order JIM MESSERS QUALTIY MODEL PRODUCTS Valley View Dr Box 43 Allegeny NY 1470$ PAC MODEL SUPPLY 211 Chase Avenue Waterbury Cl 06704 203 575-0916 Flight-Proven DesignsTOEPe 203 3931990 Balsa Construction 5-SIb Cessna 15040 Powered 62 Construction 110-15 hrsl Stable Fliers Mooney 40 Powered 62Scale Like Appearance Slow Flying Capabilities Cherokee 40 Powered 60 4ges ea plus $250 UPS Cherokee eConteet Proven -123 place Ken Barnes ~ plusSOO shipping Cessna 16025 Powered 50 plus $250 UPS NEW Firemaster Bipe58 8/e7 lbs. 80 Powered 6995 llntroductory Pricel New Pack Kat 25 powered sport flyer low wing span 45 Intro Price $2600 MasterCard Coming SoonSO Powered Pattern ShipsDealers Invited February 1986 139 31 wlelectric ignition34 wlelectric ignition Blbs2oz-5/eHPSIbs2oz-6HP 37 welectric flywheel ignition42 wlelec 1g NEW Slbn4oz-6A HPSIbs3oz-7HP Woody Woodman has appointed succeed Tom Acciavati Rules Coordinator Correspondence concerning RC Rules proposals should sent Woody 233 Longview Drive Bayville NJ 08721 stroker stuff likely readers growing bit weary 01 Doc four-cycle notes expense milking subject death let share some early observations new OS 20 four-cycle little gem well up expectations Im per sonally delighted First foremost much lighter previously-available small four-stroker fits Hayes AL 20 mount rather AL4O Performance slightly stronger 05 15 two-stroke less Fox l9BB Starting starter just easy larger strokers absolutely no need built-in choke havent installed Idle very low reliable though engine uses simple airbleed carb Preliminary flights seem indicate prop selection runs along lines found larger units diameter doesnt seem too critical pitch three-pound 400 sq sporttype model 9 x 5 wide-bladed prop seems slightly superior 10 x 4 Old-Timer-type model suggest 10 x 5 wide-blader starting point feelings about tachometers fuel expressed rather succinctly previ ous column taching 10500 rpm 9 x 5 Super M 10400 10 x 4 broke 10 x 5 before engine broken However suspect would read about 10000 rpm now engine sounds rich peak rpm sounds better lean bit over topso use tach already Dee B Mathews 8420 Nantucket Wichita KS 67212 suffer degree Such hard-wired noise will manifest itself glitches range-reduction motor running often shows up interruptions motor power control itselfin addition flight control glitches Often former reac tion much quicker occur lat terand makes matters worse on-off flow power motor can worsen noise situation caused first place thus increase least sustain noise-induced glitching Personally refuse use anything speed controls optically isolated However installation uses servo-activated switch instead speed control chances no metallic connection between on-board systems thing servo output arms wheels normally non-conductive plastic thats sufficient isolation job second thing can improve situation keep installations neat respect radio motor system wiring Separate two systems wiring other extent possi ble electrical noise motor system present wiringthe latter acting much like miniature transmitting antenna located close sensitive receiving system effective communi cation undesired on-board trans mitter/receiver greatly reduced small separation distances course sure-fire improvement could made eliminating brush noise altogethersomething thats readily possible Reducing noise possible accompanying photo shows very effective approach best knowledge scheme shown best possible noise-reduction method using capacitors As shown three capacitors used right near trouble spotthe motor brushes motor brush capacitively bypassed grounded single electrical contact motor housing again Basic Electricity recent columns weve talked about fundamentals voltmeter ammeter operation basic sensitive meter movementsthe parts move themselves both low-value voltmeters and/or current meters having limited stand-alone utility take useful voltage current ranges combined multiplier shunt resistors respec tively Multimeters nothing meter movement selection precision resistors arranged functions ranges available convenient box Finally emphasis placed using voltmeters measure voltage ACROSS parallel some componentsuch batteryand using ammeters measure current THROUGH componentsuch connected series motor Multimeters normally contain DC voltage current functions covered far example normally separate voltmeter ranges AC circuits such household circuits work using rectifying diodes separate multiplier resistors convert AC voltage equivalent DC voltages needed meter movement AC scales separate because marked slightly non-linearly make up non-linearity caused rectify ing circuit Ordinarily no use scales RC Electric pursuits since scales sure youre reading correct ones what ever Often AC scales color-coded help ohmmeter function multimeters often very useful tool modelers measures resistance scales 144 Model Aviation other have several installations RC Old-Timers/Mathews RC Electrics/Kopskiwere modified after first having Continued page 139Continued page 55flown stock motors results very convincingbig difference before/after in-flight glitching situation So have Ways break up noise path motor-to-receiver way reduce naturally-occurring noise itself Id surprised sug gestions didnt make very noticeable change better Electric fly ing enjoyment responding advertisers mention read about ModelAviation