iiicnaro L perry WHEN Heath first introduced Thumb Tach tachometer its relatively low cost ease operation made quite popular As modelers recognized utility having tachometer tool boxes demand increased variety tachometers became available Relative cost has decreased over years lower cost transistors integrated circuits optical tachometers sense light variations rotating pro peller easiest use have re mained types available kit form reduced cost two optical tachometer kits Heath Thumb Tach Ace Tach Master designed ease assemblyto finished short evening modeler no previous electronic kit experience Heath Ace units offer two ranges0-25000 rpm 0-5000 rpm lower range has little utility except calibration performed equivalent reading 3600 rpm Using low range measure idle rpm can easily result driving meter off scale small throttle excursions meter graduations 0-25000 rpm range 1000 rpm Heath 500 rpm Ace unit somewhat less op timum accurate measurement engine speeds around 5000-10000 rpm modifications described first made Heath tachometer some years ago make better suited use Control Line Navy Carrier events idle speed important factor performance engines often idle above 5000 rpm large meter easier read could graduated 500 rpm increments 0-25000 rpm range lower range changed 0-10000 rpm same time correlation between two ranges improved Heath Thumb Tach no longer manufactured though ex amples service Ace Tach Master different circuit Heath unit can also easily modified 0-10000 rpm low range large meter standard Ace Tach Master expanded low range will provide users chainsaw geared engines appropriate rpm scale types will improve accuracy t available expensive digital tachometers modifications detailed accompanying drawings photos Replacing two 1% precision resistors shown ion pnoto ma modifying iow-range markings lnstaliinga new meterface arethe slmpie steps needed change Ace Tach Masters iow range 0-10000 rpm ciose look right-hand picture shows two screws side meter movement holding meter face piece Ace unit Take care bend needle 88 Model Aviation Tachometer Modifications Bychanging low range Heath andAcetachometers low range can used accurate rpm measurement slower-running chainsaw geared engines affect ing high scale operation higher-rewing glow engines Ace Tech Master optical ta chometer its orlginai form having low range 0-5000 rpm Modified according tothedirections articie iow range changed 0-10000 improved utility number modeling applications meter mounting hole Heath ta chometer must enlarged switch moved slightly accommodate new meter Micronta 0-1 mA Radio Shack part #270-1752 $895 sheet metal nib bler easiest way accomplish case modifications high-speed rotary cutter Dremel tool file commonly found modelers Above The Micronta meter tight fit inside Thumb Tach case switch must movedsiightiytoaccommodatethe largermeter Below Afterattaching new meter scaie replace meter face new scaie centered meter body Left Modifications Heath Thumb Tach involve xepiaclng small standard meter left larger right easier read ahd has finer graduations Right low range Heath changed replacing aoK-ohm 1 0h precision resistor workshop isnt lot extra room Heath case Micronta meter installed cutouts need fairly accurate markings Micronta Continued page 179 September 1984 89 Drawings enlarged cutouts required Tor Heath case topj repiacement meter face above shown fuil-size rectangular outline modified meter scale fits Ace Tach Master curved outline matches Micronta meter Heath Thumb Tach Modification kits consisting required precision resistors new meter lace avaliabie See text Photos drawings author ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership131 Ace AC Inc55 Airtronics2 American Jr Heritage Models148 Applied Design Corp154 Astro Flight161 Balsa USA149 Bayou Products22 Black Hawk144 Bru Line Industries28 Byron Originals16132 140 176 CB Associates22 Carolina-Taffinder136 Johnnie Casburn Mfg23 Circus Hobbies97 Cleveland Model & Supply Co162 Consumers Guide AC Aircraft Prod..141 Consumers Hobby Corp90-91 Coverite158 Cox Hobbies101 D&D Engineering176 DGA Designs26 Dan Parsons Products177 Davey Systems Corp10155 Detroit Expo145 Larry Dodge Aero Inc177 Dougs Hobby Shop156-157 Du-Bro Products Inc14 E&L Manufacturing167 Eastcraft Specialty Products49 Eberles Hobby Shop151 FAI Model Supply150 FHS Supply Inc28 Fabtronics160 Flyline Models144 Foam Scale Models178 Fourmost Products165 Fox Manufacturing Co26 Woody Frantz136 Full Command Systems169 Futaba Corp America83 Gator AC Products173 Gemini Models150 Carl Goldberg Models170-171 Goliath Whirlwind Aircraft133 Gorham Model Products17 Great Lakes Model Co26 Great Planes Model Mfg Co1 H&N Electronics152 Historic Aviation9 Hobby Barn134-135 Hobby Horn158 Hobby Lobby International13 Hobby Radio Shop24 Hoffelt Group160 Ikon Northwest Co159 Indy RC Sales Inc146-1 47 K&B Manufacturing Co25 K&S Engineering161 Knights Air175 Kraft Systems Inc29 Kustom Kraftsmanship136 Leisure Electronics154 Eldon J Lind Co150 Lone Star Models5 MACS Products51 Majestic Models161 Marks Models47 Master Kit24 McDaniel AC Service24 Jim Messers Quality Model Products .. 144 Micro Mark177 Midwest Model Supply Co152 Midwest Products Co53 Model Magic Products159 Model Rectifier CorpCovers 2 & 3 Mutchlers Hobbies138-1 39 Nor-Cal Avionics136 North Products178 PK Products24 Pacer Technology & Resources148 Hal Payne Enterprises132 Peck-Polymers160 Penn Valley Hobby Center159 Pica Products4 Polks Model Craft Hobby6-7 Precision Sanding Tools22 AC Kits Mfg144 Radio Equipment Exchange178 Rebel AC178 Repla-Tech International178 Robbe Modellsport153 Roush Mfg Co140 SR Batteries172 S&W Hobby Supply174 Sachs-Dolmar137 Saf-Flite Models177 Satellite City150 Scratch-A-Plane41 Sig Manufacturing Co11 161 176 Sheldons Hobby Shop10142-143 St Croix Park Falls Ltd178 Sterling Models16 C Sweitzer Enterprises132 Tatone Products Co144 Taylor-Craft Ltd152 Time Life Books27 Top Flite Models Inc168 Tower Hobbies163 US Eagle166 VL Products162 WE Technical Services8 Williams Brothers164 Windsor Propeller Co16 World EnginesCover 4 World Helicopters87 World War Aeroplanes Inc178 Zenith Aviation Books15 Nick Ziroli Models140 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX asking interested parties will write Hubschmidts Hobby Center RD #1 Box 318 Ewan-Aura Rd Glassboro NJ 08028 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Balloon RacelCrispin Continued page 86 sometimes have opportunity ride aircraft performing balloons case Burlington author such oppor tUnity BARKS arranged take ffight Tiffany flight beautiful Sunday morning light breezes Tom Anderton floated peacefully most-wonderful flight across countryside something shall never forget describe such flight Quiet hear birds singing talk people ground enjoy flight has no sensation motion except visual After airspeed zero experience thank BARKS Tom Anderton lovely bride Shay chase crew cooperation weather would like conclude little poem Tom Anderton gave Balloonists Prayer winds have welcomed softness sun has blessed its warm hands have flown high well God has laughed set gently back arms Mother Earth Tach ModslPerry Continued page 89 meter face can changed using pen India ink printed scale available both Micronta Ace meters meter cover snap fit over body meter removed gently prying up edges meter face held two screws either side move ment printed scale can glued di rectly over existing face using contact cement double-sided tape re moving meter cover face meter careful bend nee dle damage meter movement replacement 1% precision resistors should installed locations shown photos 220K-ohm resistor re places 80K-ohm R14 Heath circuit Ace circuit requires 15Kohm color code Brown Green Black Red Brown replaces 20K-ohm R18 Red Black Black Red Brown 10K-ohm Brown Black Black Red Brown replaces 499-ohm R19 Yellow White White Brown Brown small soldering iron 40 watts less should used avoid damaging printed circuit board components Continued page 180 September 1984 179 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RiGHT TO FLY Safe Flying No Accident a V on - U LOa - 0 0 C/ U V mernemememmmmmmminmin o Circle numbers plans wish order 193225239262291299302310314326 332343348354358362365383386393 0 99403405408410412414415417 420422423424426427428429430 --0I CO. 432433434435436437438439440 S 442443444445446447448449450 451452453454 o 3 t3 C Price includes first-class postage within US orders outside US please add $250 Air Mail $125 ace mail Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr 3 0 ston VA 22090 Please allow 3 weeks delivery Please print carefully Enclosed $ NAME Ja 0 __STREETI STATE _____________________ ZIP _____________________ mememeinOin0mSmS0m0in000mSmemsmememm Use resin-core solder use acidcore solder soldering flux modifications complete assemble tachometer adjust meter zero using screw cover Recalibrate tachometer 3600 rpm low scale adjusting internal potentiometer Use incandescent fluorescent light calibration light source hold tachometer same attitude will used measure engine rpm Modification kits consisting re quired resistors new meter scale printed card stock may obtained sending $250 Richard Perry 7578 Vogels Way Springfield VA 22153 sure specify whether tachometer modified Heath Ace unit SRF FlaglMyors Continued page 96 Construction 1 Lay out piece color less transparent plastic sheet 44 x 6 fold 3 x 4% 2 Cut out copy slip sheet place folded plastic taking care have correct edge lined up fold slip sheet necessity sewing vinyl prevent vinyl sticking foot sewing machine spoiling stitch 3 Set sewing machine about 20 stitches per inch sew seams right through slip sheet Leave nee dle down can lift foot turn corners 4 Put red pennant place after sewing Seam 3 before starting Seam 4 pin piece tape can help keep slipping out place sewing 5 Cut front back layers shown slip sheet make fin ger reliefs tab Tear off slip sheet 6 Tie free ends thread ZAP-glue place 7 Remove button tip transmitter antenna Slip SRF flag over antenna Replace button 8 Cut out staple two books numbers Include x 3-in strip plastic binding two books numbers linking together fold make removal easier also dust pocket talcum powder Fold books correct numbers stuff pocket digits number goes first tens number should top going last Channel 52 put 5 above 2 9 Stuff screwdriver pouch fold flap made channel-se lecting screwdriver cutting hex end plastic tuning wand 10 Fold flap over keep every-thing flag Since vinyl sticks itself rather well havent needed other fastening plastic doesnt stick itself push flap over number books Thats 180 Model Aviation FULL*SIZE* PLANS No452 GeBeZ RO Quarter Scale spans 71 /o uses 90 power Four sheets No 453 Smoothle Profile$ 550 CL Profile rendition Palmers super-Stunter 35 power No 454 Sweet P30$ 200 FF Neat Outdoor Rubber P-30-class competition model No 193 Setto CL Stunt model McDonald winner 1 978 19801982 FAI Wend Champs375 No 225Ole RobMe AC 70 version 0138 old-timer REM controls 1 9-255425 No 239Em Weds AC Ken Willardn formation plane 4-channel 10-power $375 No 262Crastisanten CL Crash-proof trainer two sizesl 5-30- aed 35-40-power$125 No 291Cap 20 40-powered scale AC French aerobatic plane Low wing fail-dragger Two sheets $750 No 299Bee Boa Sr Sportster AC 1-scale Haffke 91 power Prototype span 38 ft Two-and-a-baR sheets $1175 No 302Eel F-iS AC Sarpolus 049 ducted Ian sport flier 2-channel Balsa wings fail loon structure$275 No 3101930 Reel Biplane AC Sport Scale 35-40 4-channel Wingspan 58 scale Two sheets$825 No 314Drake AC Ken Willards flying boat 3-channel 15-power Fly land removable gear$375 No 326Taylor Cab AC Don Srslls Schoolyard-Scale 1w 049s 2-3 channel Spans 50 in$350 No 332Zaphyr AC Small 2-channel glider hand-lavoch tow theonal slope soaring$200 No 343Wasp VI FF Mike 5toys Nats-winning Outdoor HLG$100 No 340Ceestep AC Trainer has nery forgiving flying qualities Three-channel 1 0-25-powe $425 No 354Mertys AC Giant 155-in span Sailplane ases 3 AC channels $750 No 358Plecco FF Indoor Easy B Aubber-power coolest-winner W Van Gorder $100 No 352Sapemat AC Half-A Pylon Rocerspont flier Aileron elenotor cont rid Foam wing 0 No 365Sesesantac AC Willards 40-sizo flying boat 4-channel Strap-on gear twa landplanel Two sheets $1100 No 303Cable 02 AC Fly sleek Hats-winning Sailplane AMA Mod Std Unlimited classes $75$ No 386Liner 200 AC Sport Scale replica championship Aenohatic flier Uses 40 power 4-5 channel Two sheets $1075 No 393yA KIoud beg AC Aeduced modernized nersiun sf1938 design mA Old-Timen 2w 3-channel $450 No300Bee Boo 01 AC Haffkos latest iAscale spans 75 weighs 15 lb flies 9Oorlarger Poor sheets ondoc $2225 No 390Zephyr 1100 AC AMA Class B Sailplane 3-channel AC gear $875 No 403Cab Flealpbane AC Sport Scale 04fl-1 0-size engines 4-channel AC J-3 floats isa classic $050 No 405Reflect Oveen SkIes AC Fun-type biplane 40-00 power 4-chanoel Two sheets St350 Na 408RaVeItEe AC electric-power sport flier 2-channel 05 motor $850 No 410Poker Ptole AC Scale famous EAA plane 40-power 4-channel Boild sport Precision Two sheets plus dec $1300 No412Meaqelto AC Sport Ploen twin oses 10 engines 4-chaenol AC $825 Ne 414CleelsIc Sparky AC electric-powered fun flier 05 motor 3-channel AC scaled op 1939 robber-power lavurite $050 Na 415Hawker Narelcam Uk AC Electric-power Sport Scale 15 motor 3-4 chaonefs Two sheets $1175 No 417Spnrtuaooe JO AC Pulse-rudder spontster 02-power$300 No 418Latee Mtoar AC Sport Scale model 1 930s British lightplaoe 19-power 4-channel AC$725 Ne 428fleck 600 FP Competition Class B 1 921 power Has nailable-incidence fail nit$800 Na 422Scooter AC Twn-Meter Sailplane has won Hats enent 1982 1983 plus other contests$550 Ne 423Cload Cralsec AC Old-Timer fakes 80-power 3-channel AC Two-pleco wing option 1w easy transpert Two sheets $1275 No 4249oed Tern PP Embryo Endurance robber-power fboatplane has optional wheels otick-and-tisson delight$200 No 426ChIna CAttper AC Fabulous 74-in-upon Sport Scale flying boat four 10-size engines 4-channel Three sheets f no doc $2000 No 427Profiles PP Travelair Mystery Ship Miss Loo Angeles profile oIl-balsa robber medets 1w sport Ilying 1 7-in-span $200 No 426floarcat CL eig cnmpetition-caliher profile Stunter 80 power$500 No 420Deer 0Z CL Old-Timer Stunt biplane boo protile fuselage uses 25 engine $400 No 430resIde AC Zippy little sportoter 1015 power 3-channel AC$400 No 431Locktseaet P36 AC Fun-scale twin-1 5-flier 4-channels Two oheets-$1300 No 432PItoenlo CL Updated Thunderbird-style Sfuntnr 35-40 englees$575 No 433Walls Up AC Electric-powered glider 2-3 channels 035 motor spans 52 in$450 No 434Sly SId CL leA foam-wing Combat ship won 83 Nats Use TO 049-051 power$350 No 435TItfo N AC Aerohatic biplane 40 engines 4-channels Great sport flying$050 No 436Ryan B-B Oroagham AC Scale far 4-channel 40-aize 4-cycle engines spans 83Is Two sheets$1200 No 437Ktngflaher CL Profile Carrier plane spans 40/z uses 35 engine$ 800 Na 439Ceuteor PP Embryo Endurance rubber-power fun ship has big-model characteristics $ 208 No 439Desperado AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 No 440Canatlec AC Old-Timer-like new design has huge wing br slew easy flights Pen 35 power 3 channels Two sheets$1725 No 441We WIt FP Hot small lightweight cnmpatifino ship 15 power designer Harry Murpby$ 475 Ne 442Lang Dock AC 8ig canard sport flier ton /A-09 power 2 channels Uses foam board parts$ 850 No 443Turbo Paeter CL Scale 25 power Simple lines easy building Two sheets 75 No 444FleebelE AC pusher casard sport/pattern usex 40 pusher engine 4-channel Has swept-f inward foam wings$ 850 No 445NoomItli Coagan CL Scale model popular homebuilt won Hats Uses 21 engine spans 41 a$ 925 No 446Le Crate AC Electric-powered sport flier 05 motors 3-channels Two nersions parasol en cabin$ 550 No 447thA MIen Asserica AC Old-Timer mA Texaco model 049 glow 2-channels $ 850 No 448Scroansto Baglet AC Partial plan moditying Goldbergs Eaglet kitten hatter aerobatics$ 400 No 449Settee CL SportlStunt plane 40-size 4-stroke engian builds last easy$ 800 No 450Cley Boy 74 PP CO-2 power flies 24-in-span replica famous 1949 long-failed competition ship$ 200 No 451BIt BIplane Sentioc AC Redesign sleek 1937 PP biplane 3-4 chaenels 29-40 power Two sheets$1175
Edition: Model Aviation - 1984/09
Page Numbers: 88, 89, 179, 180
Edition: Model Aviation - 1984/09
Page Numbers: 88, 89, 179, 180
iiicnaro L perry WHEN Heath first introduced Thumb Tach tachometer its relatively low cost ease operation made quite popular As modelers recognized utility having tachometer tool boxes demand increased variety tachometers became available Relative cost has decreased over years lower cost transistors integrated circuits optical tachometers sense light variations rotating pro peller easiest use have re mained types available kit form reduced cost two optical tachometer kits Heath Thumb Tach Ace Tach Master designed ease assemblyto finished short evening modeler no previous electronic kit experience Heath Ace units offer two ranges0-25000 rpm 0-5000 rpm lower range has little utility except calibration performed equivalent reading 3600 rpm Using low range measure idle rpm can easily result driving meter off scale small throttle excursions meter graduations 0-25000 rpm range 1000 rpm Heath 500 rpm Ace unit somewhat less op timum accurate measurement engine speeds around 5000-10000 rpm modifications described first made Heath tachometer some years ago make better suited use Control Line Navy Carrier events idle speed important factor performance engines often idle above 5000 rpm large meter easier read could graduated 500 rpm increments 0-25000 rpm range lower range changed 0-10000 rpm same time correlation between two ranges improved Heath Thumb Tach no longer manufactured though ex amples service Ace Tach Master different circuit Heath unit can also easily modified 0-10000 rpm low range large meter standard Ace Tach Master expanded low range will provide users chainsaw geared engines appropriate rpm scale types will improve accuracy t available expensive digital tachometers modifications detailed accompanying drawings photos Replacing two 1% precision resistors shown ion pnoto ma modifying iow-range markings lnstaliinga new meterface arethe slmpie steps needed change Ace Tach Masters iow range 0-10000 rpm ciose look right-hand picture shows two screws side meter movement holding meter face piece Ace unit Take care bend needle 88 Model Aviation Tachometer Modifications Bychanging low range Heath andAcetachometers low range can used accurate rpm measurement slower-running chainsaw geared engines affect ing high scale operation higher-rewing glow engines Ace Tech Master optical ta chometer its orlginai form having low range 0-5000 rpm Modified according tothedirections articie iow range changed 0-10000 improved utility number modeling applications meter mounting hole Heath ta chometer must enlarged switch moved slightly accommodate new meter Micronta 0-1 mA Radio Shack part #270-1752 $895 sheet metal nib bler easiest way accomplish case modifications high-speed rotary cutter Dremel tool file commonly found modelers Above The Micronta meter tight fit inside Thumb Tach case switch must movedsiightiytoaccommodatethe largermeter Below Afterattaching new meter scaie replace meter face new scaie centered meter body Left Modifications Heath Thumb Tach involve xepiaclng small standard meter left larger right easier read ahd has finer graduations Right low range Heath changed replacing aoK-ohm 1 0h precision resistor workshop isnt lot extra room Heath case Micronta meter installed cutouts need fairly accurate markings Micronta Continued page 179 September 1984 89 Drawings enlarged cutouts required Tor Heath case topj repiacement meter face above shown fuil-size rectangular outline modified meter scale fits Ace Tach Master curved outline matches Micronta meter Heath Thumb Tach Modification kits consisting required precision resistors new meter lace avaliabie See text Photos drawings author ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership131 Ace AC Inc55 Airtronics2 American Jr Heritage Models148 Applied Design Corp154 Astro Flight161 Balsa USA149 Bayou Products22 Black Hawk144 Bru Line Industries28 Byron Originals16132 140 176 CB Associates22 Carolina-Taffinder136 Johnnie Casburn Mfg23 Circus Hobbies97 Cleveland Model & Supply Co162 Consumers Guide AC Aircraft Prod..141 Consumers Hobby Corp90-91 Coverite158 Cox Hobbies101 D&D Engineering176 DGA Designs26 Dan Parsons Products177 Davey Systems Corp10155 Detroit Expo145 Larry Dodge Aero Inc177 Dougs Hobby Shop156-157 Du-Bro Products Inc14 E&L Manufacturing167 Eastcraft Specialty Products49 Eberles Hobby Shop151 FAI Model Supply150 FHS Supply Inc28 Fabtronics160 Flyline Models144 Foam Scale Models178 Fourmost Products165 Fox Manufacturing Co26 Woody Frantz136 Full Command Systems169 Futaba Corp America83 Gator AC Products173 Gemini Models150 Carl Goldberg Models170-171 Goliath Whirlwind Aircraft133 Gorham Model Products17 Great Lakes Model Co26 Great Planes Model Mfg Co1 H&N Electronics152 Historic Aviation9 Hobby Barn134-135 Hobby Horn158 Hobby Lobby International13 Hobby Radio Shop24 Hoffelt Group160 Ikon Northwest Co159 Indy RC Sales Inc146-1 47 K&B Manufacturing Co25 K&S Engineering161 Knights Air175 Kraft Systems Inc29 Kustom Kraftsmanship136 Leisure Electronics154 Eldon J Lind Co150 Lone Star Models5 MACS Products51 Majestic Models161 Marks Models47 Master Kit24 McDaniel AC Service24 Jim Messers Quality Model Products .. 144 Micro Mark177 Midwest Model Supply Co152 Midwest Products Co53 Model Magic Products159 Model Rectifier CorpCovers 2 & 3 Mutchlers Hobbies138-1 39 Nor-Cal Avionics136 North Products178 PK Products24 Pacer Technology & Resources148 Hal Payne Enterprises132 Peck-Polymers160 Penn Valley Hobby Center159 Pica Products4 Polks Model Craft Hobby6-7 Precision Sanding Tools22 AC Kits Mfg144 Radio Equipment Exchange178 Rebel AC178 Repla-Tech International178 Robbe Modellsport153 Roush Mfg Co140 SR Batteries172 S&W Hobby Supply174 Sachs-Dolmar137 Saf-Flite Models177 Satellite City150 Scratch-A-Plane41 Sig Manufacturing Co11 161 176 Sheldons Hobby Shop10142-143 St Croix Park Falls Ltd178 Sterling Models16 C Sweitzer Enterprises132 Tatone Products Co144 Taylor-Craft Ltd152 Time Life Books27 Top Flite Models Inc168 Tower Hobbies163 US Eagle166 VL Products162 WE Technical Services8 Williams Brothers164 Windsor Propeller Co16 World EnginesCover 4 World Helicopters87 World War Aeroplanes Inc178 Zenith Aviation Books15 Nick Ziroli Models140 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX asking interested parties will write Hubschmidts Hobby Center RD #1 Box 318 Ewan-Aura Rd Glassboro NJ 08028 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Balloon RacelCrispin Continued page 86 sometimes have opportunity ride aircraft performing balloons case Burlington author such oppor tUnity BARKS arranged take ffight Tiffany flight beautiful Sunday morning light breezes Tom Anderton floated peacefully most-wonderful flight across countryside something shall never forget describe such flight Quiet hear birds singing talk people ground enjoy flight has no sensation motion except visual After airspeed zero experience thank BARKS Tom Anderton lovely bride Shay chase crew cooperation weather would like conclude little poem Tom Anderton gave Balloonists Prayer winds have welcomed softness sun has blessed its warm hands have flown high well God has laughed set gently back arms Mother Earth Tach ModslPerry Continued page 89 meter face can changed using pen India ink printed scale available both Micronta Ace meters meter cover snap fit over body meter removed gently prying up edges meter face held two screws either side move ment printed scale can glued di rectly over existing face using contact cement double-sided tape re moving meter cover face meter careful bend nee dle damage meter movement replacement 1% precision resistors should installed locations shown photos 220K-ohm resistor re places 80K-ohm R14 Heath circuit Ace circuit requires 15Kohm color code Brown Green Black Red Brown replaces 20K-ohm R18 Red Black Black Red Brown 10K-ohm Brown Black Black Red Brown replaces 499-ohm R19 Yellow White White Brown Brown small soldering iron 40 watts less should used avoid damaging printed circuit board components Continued page 180 September 1984 179 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RiGHT TO FLY Safe Flying No Accident a V on - U LOa - 0 0 C/ U V mernemememmmmmmminmin o Circle numbers plans wish order 193225239262291299302310314326 332343348354358362365383386393 0 99403405408410412414415417 420422423424426427428429430 --0I CO. 432433434435436437438439440 S 442443444445446447448449450 451452453454 o 3 t3 C Price includes first-class postage within US orders outside US please add $250 Air Mail $125 ace mail Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr 3 0 ston VA 22090 Please allow 3 weeks delivery Please print carefully Enclosed $ NAME Ja 0 __STREETI STATE _____________________ ZIP _____________________ mememeinOin0mSmS0m0in000mSmemsmememm Use resin-core solder use acidcore solder soldering flux modifications complete assemble tachometer adjust meter zero using screw cover Recalibrate tachometer 3600 rpm low scale adjusting internal potentiometer Use incandescent fluorescent light calibration light source hold tachometer same attitude will used measure engine rpm Modification kits consisting re quired resistors new meter scale printed card stock may obtained sending $250 Richard Perry 7578 Vogels Way Springfield VA 22153 sure specify whether tachometer modified Heath Ace unit SRF FlaglMyors Continued page 96 Construction 1 Lay out piece color less transparent plastic sheet 44 x 6 fold 3 x 4% 2 Cut out copy slip sheet place folded plastic taking care have correct edge lined up fold slip sheet necessity sewing vinyl prevent vinyl sticking foot sewing machine spoiling stitch 3 Set sewing machine about 20 stitches per inch sew seams right through slip sheet Leave nee dle down can lift foot turn corners 4 Put red pennant place after sewing Seam 3 before starting Seam 4 pin piece tape can help keep slipping out place sewing 5 Cut front back layers shown slip sheet make fin ger reliefs tab Tear off slip sheet 6 Tie free ends thread ZAP-glue place 7 Remove button tip transmitter antenna Slip SRF flag over antenna Replace button 8 Cut out staple two books numbers Include x 3-in strip plastic binding two books numbers linking together fold make removal easier also dust pocket talcum powder Fold books correct numbers stuff pocket digits number goes first tens number should top going last Channel 52 put 5 above 2 9 Stuff screwdriver pouch fold flap made channel-se lecting screwdriver cutting hex end plastic tuning wand 10 Fold flap over keep every-thing flag Since vinyl sticks itself rather well havent needed other fastening plastic doesnt stick itself push flap over number books Thats 180 Model Aviation FULL*SIZE* PLANS No452 GeBeZ RO Quarter Scale spans 71 /o uses 90 power Four sheets No 453 Smoothle Profile$ 550 CL Profile rendition Palmers super-Stunter 35 power No 454 Sweet P30$ 200 FF Neat Outdoor Rubber P-30-class competition model No 193 Setto CL Stunt model McDonald winner 1 978 19801982 FAI Wend Champs375 No 225Ole RobMe AC 70 version 0138 old-timer REM controls 1 9-255425 No 239Em Weds AC Ken Willardn formation plane 4-channel 10-power $375 No 262Crastisanten CL Crash-proof trainer two sizesl 5-30- aed 35-40-power$125 No 291Cap 20 40-powered scale AC French aerobatic plane Low wing fail-dragger Two sheets $750 No 299Bee Boa Sr Sportster AC 1-scale Haffke 91 power Prototype span 38 ft Two-and-a-baR sheets $1175 No 302Eel F-iS AC Sarpolus 049 ducted Ian sport flier 2-channel Balsa wings fail loon structure$275 No 3101930 Reel Biplane AC Sport Scale 35-40 4-channel Wingspan 58 scale Two sheets$825 No 314Drake AC Ken Willards flying boat 3-channel 15-power Fly land removable gear$375 No 326Taylor Cab AC Don Srslls Schoolyard-Scale 1w 049s 2-3 channel Spans 50 in$350 No 332Zaphyr AC Small 2-channel glider hand-lavoch tow theonal slope soaring$200 No 343Wasp VI FF Mike 5toys Nats-winning Outdoor HLG$100 No 340Ceestep AC Trainer has nery forgiving flying qualities Three-channel 1 0-25-powe $425 No 354Mertys AC Giant 155-in span Sailplane ases 3 AC channels $750 No 358Plecco FF Indoor Easy B Aubber-power coolest-winner W Van Gorder $100 No 352Sapemat AC Half-A Pylon Rocerspont flier Aileron elenotor cont rid Foam wing 0 No 365Sesesantac AC Willards 40-sizo flying boat 4-channel Strap-on gear twa landplanel Two sheets $1100 No 303Cable 02 AC Fly sleek Hats-winning Sailplane AMA Mod Std Unlimited classes $75$ No 386Liner 200 AC Sport Scale replica championship Aenohatic flier Uses 40 power 4-5 channel Two sheets $1075 No 393yA KIoud beg AC Aeduced modernized nersiun sf1938 design mA Old-Timen 2w 3-channel $450 No300Bee Boo 01 AC Haffkos latest iAscale spans 75 weighs 15 lb flies 9Oorlarger Poor sheets ondoc $2225 No 390Zephyr 1100 AC AMA Class B Sailplane 3-channel AC gear $875 No 403Cab Flealpbane AC Sport Scale 04fl-1 0-size engines 4-channel AC J-3 floats isa classic $050 No 405Reflect Oveen SkIes AC Fun-type biplane 40-00 power 4-chanoel Two sheets St350 Na 408RaVeItEe AC electric-power sport flier 2-channel 05 motor $850 No 410Poker Ptole AC Scale famous EAA plane 40-power 4-channel Boild sport Precision Two sheets plus dec $1300 No412Meaqelto AC Sport Ploen twin oses 10 engines 4-chaenol AC $825 Ne 414CleelsIc Sparky AC electric-powered fun flier 05 motor 3-channel AC scaled op 1939 robber-power lavurite $050 Na 415Hawker Narelcam Uk AC Electric-power Sport Scale 15 motor 3-4 chaonefs Two sheets $1175 No 417Spnrtuaooe JO AC Pulse-rudder spontster 02-power$300 No 418Latee Mtoar AC Sport Scale model 1 930s British lightplaoe 19-power 4-channel AC$725 Ne 428fleck 600 FP Competition Class B 1 921 power Has nailable-incidence fail nit$800 Na 422Scooter AC Twn-Meter Sailplane has won Hats enent 1982 1983 plus other contests$550 Ne 423Cload Cralsec AC Old-Timer fakes 80-power 3-channel AC Two-pleco wing option 1w easy transpert Two sheets $1275 No 4249oed Tern PP Embryo Endurance robber-power fboatplane has optional wheels otick-and-tisson delight$200 No 426ChIna CAttper AC Fabulous 74-in-upon Sport Scale flying boat four 10-size engines 4-channel Three sheets f no doc $2000 No 427Profiles PP Travelair Mystery Ship Miss Loo Angeles profile oIl-balsa robber medets 1w sport Ilying 1 7-in-span $200 No 426floarcat CL eig cnmpetition-caliher profile Stunter 80 power$500 No 420Deer 0Z CL Old-Timer Stunt biplane boo protile fuselage uses 25 engine $400 No 430resIde AC Zippy little sportoter 1015 power 3-channel AC$400 No 431Locktseaet P36 AC Fun-scale twin-1 5-flier 4-channels Two oheets-$1300 No 432PItoenlo CL Updated Thunderbird-style Sfuntnr 35-40 englees$575 No 433Walls Up AC Electric-powered glider 2-3 channels 035 motor spans 52 in$450 No 434Sly SId CL leA foam-wing Combat ship won 83 Nats Use TO 049-051 power$350 No 435TItfo N AC Aerohatic biplane 40 engines 4-channels Great sport flying$050 No 436Ryan B-B Oroagham AC Scale far 4-channel 40-aize 4-cycle engines spans 83Is Two sheets$1200 No 437Ktngflaher CL Profile Carrier plane spans 40/z uses 35 engine$ 800 Na 439Ceuteor PP Embryo Endurance rubber-power fun ship has big-model characteristics $ 208 No 439Desperado AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 No 440Canatlec AC Old-Timer-like new design has huge wing br slew easy flights Pen 35 power 3 channels Two sheets$1725 No 441We WIt FP Hot small lightweight cnmpatifino ship 15 power designer Harry Murpby$ 475 Ne 442Lang Dock AC 8ig canard sport flier ton /A-09 power 2 channels Uses foam board parts$ 850 No 443Turbo Paeter CL Scale 25 power Simple lines easy building Two sheets 75 No 444FleebelE AC pusher casard sport/pattern usex 40 pusher engine 4-channel Has swept-f inward foam wings$ 850 No 445NoomItli Coagan CL Scale model popular homebuilt won Hats Uses 21 engine spans 41 a$ 925 No 446Le Crate AC Electric-powered sport flier 05 motors 3-channels Two nersions parasol en cabin$ 550 No 447thA MIen Asserica AC Old-Timer mA Texaco model 049 glow 2-channels $ 850 No 448Scroansto Baglet AC Partial plan moditying Goldbergs Eaglet kitten hatter aerobatics$ 400 No 449Settee CL SportlStunt plane 40-size 4-stroke engian builds last easy$ 800 No 450Cley Boy 74 PP CO-2 power flies 24-in-span replica famous 1949 long-failed competition ship$ 200 No 451BIt BIplane Sentioc AC Redesign sleek 1937 PP biplane 3-4 chaenels 29-40 power Two sheets$1175
Edition: Model Aviation - 1984/09
Page Numbers: 88, 89, 179, 180
iiicnaro L perry WHEN Heath first introduced Thumb Tach tachometer its relatively low cost ease operation made quite popular As modelers recognized utility having tachometer tool boxes demand increased variety tachometers became available Relative cost has decreased over years lower cost transistors integrated circuits optical tachometers sense light variations rotating pro peller easiest use have re mained types available kit form reduced cost two optical tachometer kits Heath Thumb Tach Ace Tach Master designed ease assemblyto finished short evening modeler no previous electronic kit experience Heath Ace units offer two ranges0-25000 rpm 0-5000 rpm lower range has little utility except calibration performed equivalent reading 3600 rpm Using low range measure idle rpm can easily result driving meter off scale small throttle excursions meter graduations 0-25000 rpm range 1000 rpm Heath 500 rpm Ace unit somewhat less op timum accurate measurement engine speeds around 5000-10000 rpm modifications described first made Heath tachometer some years ago make better suited use Control Line Navy Carrier events idle speed important factor performance engines often idle above 5000 rpm large meter easier read could graduated 500 rpm increments 0-25000 rpm range lower range changed 0-10000 rpm same time correlation between two ranges improved Heath Thumb Tach no longer manufactured though ex amples service Ace Tach Master different circuit Heath unit can also easily modified 0-10000 rpm low range large meter standard Ace Tach Master expanded low range will provide users chainsaw geared engines appropriate rpm scale types will improve accuracy t available expensive digital tachometers modifications detailed accompanying drawings photos Replacing two 1% precision resistors shown ion pnoto ma modifying iow-range markings lnstaliinga new meterface arethe slmpie steps needed change Ace Tach Masters iow range 0-10000 rpm ciose look right-hand picture shows two screws side meter movement holding meter face piece Ace unit Take care bend needle 88 Model Aviation Tachometer Modifications Bychanging low range Heath andAcetachometers low range can used accurate rpm measurement slower-running chainsaw geared engines affect ing high scale operation higher-rewing glow engines Ace Tech Master optical ta chometer its orlginai form having low range 0-5000 rpm Modified according tothedirections articie iow range changed 0-10000 improved utility number modeling applications meter mounting hole Heath ta chometer must enlarged switch moved slightly accommodate new meter Micronta 0-1 mA Radio Shack part #270-1752 $895 sheet metal nib bler easiest way accomplish case modifications high-speed rotary cutter Dremel tool file commonly found modelers Above The Micronta meter tight fit inside Thumb Tach case switch must movedsiightiytoaccommodatethe largermeter Below Afterattaching new meter scaie replace meter face new scaie centered meter body Left Modifications Heath Thumb Tach involve xepiaclng small standard meter left larger right easier read ahd has finer graduations Right low range Heath changed replacing aoK-ohm 1 0h precision resistor workshop isnt lot extra room Heath case Micronta meter installed cutouts need fairly accurate markings Micronta Continued page 179 September 1984 89 Drawings enlarged cutouts required Tor Heath case topj repiacement meter face above shown fuil-size rectangular outline modified meter scale fits Ace Tach Master curved outline matches Micronta meter Heath Thumb Tach Modification kits consisting required precision resistors new meter lace avaliabie See text Photos drawings author ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership131 Ace AC Inc55 Airtronics2 American Jr Heritage Models148 Applied Design Corp154 Astro Flight161 Balsa USA149 Bayou Products22 Black Hawk144 Bru Line Industries28 Byron Originals16132 140 176 CB Associates22 Carolina-Taffinder136 Johnnie Casburn Mfg23 Circus Hobbies97 Cleveland Model & Supply Co162 Consumers Guide AC Aircraft Prod..141 Consumers Hobby Corp90-91 Coverite158 Cox Hobbies101 D&D Engineering176 DGA Designs26 Dan Parsons Products177 Davey Systems Corp10155 Detroit Expo145 Larry Dodge Aero Inc177 Dougs Hobby Shop156-157 Du-Bro Products Inc14 E&L Manufacturing167 Eastcraft Specialty Products49 Eberles Hobby Shop151 FAI Model Supply150 FHS Supply Inc28 Fabtronics160 Flyline Models144 Foam Scale Models178 Fourmost Products165 Fox Manufacturing Co26 Woody Frantz136 Full Command Systems169 Futaba Corp America83 Gator AC Products173 Gemini Models150 Carl Goldberg Models170-171 Goliath Whirlwind Aircraft133 Gorham Model Products17 Great Lakes Model Co26 Great Planes Model Mfg Co1 H&N Electronics152 Historic Aviation9 Hobby Barn134-135 Hobby Horn158 Hobby Lobby International13 Hobby Radio Shop24 Hoffelt Group160 Ikon Northwest Co159 Indy RC Sales Inc146-1 47 K&B Manufacturing Co25 K&S Engineering161 Knights Air175 Kraft Systems Inc29 Kustom Kraftsmanship136 Leisure Electronics154 Eldon J Lind Co150 Lone Star Models5 MACS Products51 Majestic Models161 Marks Models47 Master Kit24 McDaniel AC Service24 Jim Messers Quality Model Products .. 144 Micro Mark177 Midwest Model Supply Co152 Midwest Products Co53 Model Magic Products159 Model Rectifier CorpCovers 2 & 3 Mutchlers Hobbies138-1 39 Nor-Cal Avionics136 North Products178 PK Products24 Pacer Technology & Resources148 Hal Payne Enterprises132 Peck-Polymers160 Penn Valley Hobby Center159 Pica Products4 Polks Model Craft Hobby6-7 Precision Sanding Tools22 AC Kits Mfg144 Radio Equipment Exchange178 Rebel AC178 Repla-Tech International178 Robbe Modellsport153 Roush Mfg Co140 SR Batteries172 S&W Hobby Supply174 Sachs-Dolmar137 Saf-Flite Models177 Satellite City150 Scratch-A-Plane41 Sig Manufacturing Co11 161 176 Sheldons Hobby Shop10142-143 St Croix Park Falls Ltd178 Sterling Models16 C Sweitzer Enterprises132 Tatone Products Co144 Taylor-Craft Ltd152 Time Life Books27 Top Flite Models Inc168 Tower Hobbies163 US Eagle166 VL Products162 WE Technical Services8 Williams Brothers164 Windsor Propeller Co16 World EnginesCover 4 World Helicopters87 World War Aeroplanes Inc178 Zenith Aviation Books15 Nick Ziroli Models140 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX asking interested parties will write Hubschmidts Hobby Center RD #1 Box 318 Ewan-Aura Rd Glassboro NJ 08028 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Balloon RacelCrispin Continued page 86 sometimes have opportunity ride aircraft performing balloons case Burlington author such oppor tUnity BARKS arranged take ffight Tiffany flight beautiful Sunday morning light breezes Tom Anderton floated peacefully most-wonderful flight across countryside something shall never forget describe such flight Quiet hear birds singing talk people ground enjoy flight has no sensation motion except visual After airspeed zero experience thank BARKS Tom Anderton lovely bride Shay chase crew cooperation weather would like conclude little poem Tom Anderton gave Balloonists Prayer winds have welcomed softness sun has blessed its warm hands have flown high well God has laughed set gently back arms Mother Earth Tach ModslPerry Continued page 89 meter face can changed using pen India ink printed scale available both Micronta Ace meters meter cover snap fit over body meter removed gently prying up edges meter face held two screws either side move ment printed scale can glued di rectly over existing face using contact cement double-sided tape re moving meter cover face meter careful bend nee dle damage meter movement replacement 1% precision resistors should installed locations shown photos 220K-ohm resistor re places 80K-ohm R14 Heath circuit Ace circuit requires 15Kohm color code Brown Green Black Red Brown replaces 20K-ohm R18 Red Black Black Red Brown 10K-ohm Brown Black Black Red Brown replaces 499-ohm R19 Yellow White White Brown Brown small soldering iron 40 watts less should used avoid damaging printed circuit board components Continued page 180 September 1984 179 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RiGHT TO FLY Safe Flying No Accident a V on - U LOa - 0 0 C/ U V mernemememmmmmmminmin o Circle numbers plans wish order 193225239262291299302310314326 332343348354358362365383386393 0 99403405408410412414415417 420422423424426427428429430 --0I CO. 432433434435436437438439440 S 442443444445446447448449450 451452453454 o 3 t3 C Price includes first-class postage within US orders outside US please add $250 Air Mail $125 ace mail Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr 3 0 ston VA 22090 Please allow 3 weeks delivery Please print carefully Enclosed $ NAME Ja 0 __STREETI STATE _____________________ ZIP _____________________ mememeinOin0mSmS0m0in000mSmemsmememm Use resin-core solder use acidcore solder soldering flux modifications complete assemble tachometer adjust meter zero using screw cover Recalibrate tachometer 3600 rpm low scale adjusting internal potentiometer Use incandescent fluorescent light calibration light source hold tachometer same attitude will used measure engine rpm Modification kits consisting re quired resistors new meter scale printed card stock may obtained sending $250 Richard Perry 7578 Vogels Way Springfield VA 22153 sure specify whether tachometer modified Heath Ace unit SRF FlaglMyors Continued page 96 Construction 1 Lay out piece color less transparent plastic sheet 44 x 6 fold 3 x 4% 2 Cut out copy slip sheet place folded plastic taking care have correct edge lined up fold slip sheet necessity sewing vinyl prevent vinyl sticking foot sewing machine spoiling stitch 3 Set sewing machine about 20 stitches per inch sew seams right through slip sheet Leave nee dle down can lift foot turn corners 4 Put red pennant place after sewing Seam 3 before starting Seam 4 pin piece tape can help keep slipping out place sewing 5 Cut front back layers shown slip sheet make fin ger reliefs tab Tear off slip sheet 6 Tie free ends thread ZAP-glue place 7 Remove button tip transmitter antenna Slip SRF flag over antenna Replace button 8 Cut out staple two books numbers Include x 3-in strip plastic binding two books numbers linking together fold make removal easier also dust pocket talcum powder Fold books correct numbers stuff pocket digits number goes first tens number should top going last Channel 52 put 5 above 2 9 Stuff screwdriver pouch fold flap made channel-se lecting screwdriver cutting hex end plastic tuning wand 10 Fold flap over keep every-thing flag Since vinyl sticks itself rather well havent needed other fastening plastic doesnt stick itself push flap over number books Thats 180 Model Aviation FULL*SIZE* PLANS No452 GeBeZ RO Quarter Scale spans 71 /o uses 90 power Four sheets No 453 Smoothle Profile$ 550 CL Profile rendition Palmers super-Stunter 35 power No 454 Sweet P30$ 200 FF Neat Outdoor Rubber P-30-class competition model No 193 Setto CL Stunt model McDonald winner 1 978 19801982 FAI Wend Champs375 No 225Ole RobMe AC 70 version 0138 old-timer REM controls 1 9-255425 No 239Em Weds AC Ken Willardn formation plane 4-channel 10-power $375 No 262Crastisanten CL Crash-proof trainer two sizesl 5-30- aed 35-40-power$125 No 291Cap 20 40-powered scale AC French aerobatic plane Low wing fail-dragger Two sheets $750 No 299Bee Boa Sr Sportster AC 1-scale Haffke 91 power Prototype span 38 ft Two-and-a-baR sheets $1175 No 302Eel F-iS AC Sarpolus 049 ducted Ian sport flier 2-channel Balsa wings fail loon structure$275 No 3101930 Reel Biplane AC Sport Scale 35-40 4-channel Wingspan 58 scale Two sheets$825 No 314Drake AC Ken Willards flying boat 3-channel 15-power Fly land removable gear$375 No 326Taylor Cab AC Don Srslls Schoolyard-Scale 1w 049s 2-3 channel Spans 50 in$350 No 332Zaphyr AC Small 2-channel glider hand-lavoch tow theonal slope soaring$200 No 343Wasp VI FF Mike 5toys Nats-winning Outdoor HLG$100 No 340Ceestep AC Trainer has nery forgiving flying qualities Three-channel 1 0-25-powe $425 No 354Mertys AC Giant 155-in span Sailplane ases 3 AC channels $750 No 358Plecco FF Indoor Easy B Aubber-power coolest-winner W Van Gorder $100 No 352Sapemat AC Half-A Pylon Rocerspont flier Aileron elenotor cont rid Foam wing 0 No 365Sesesantac AC Willards 40-sizo flying boat 4-channel Strap-on gear twa landplanel Two sheets $1100 No 303Cable 02 AC Fly sleek Hats-winning Sailplane AMA Mod Std Unlimited classes $75$ No 386Liner 200 AC Sport Scale replica championship Aenohatic flier Uses 40 power 4-5 channel Two sheets $1075 No 393yA KIoud beg AC Aeduced modernized nersiun sf1938 design mA Old-Timen 2w 3-channel $450 No300Bee Boo 01 AC Haffkos latest iAscale spans 75 weighs 15 lb flies 9Oorlarger Poor sheets ondoc $2225 No 390Zephyr 1100 AC AMA Class B Sailplane 3-channel AC gear $875 No 403Cab Flealpbane AC Sport Scale 04fl-1 0-size engines 4-channel AC J-3 floats isa classic $050 No 405Reflect Oveen SkIes AC Fun-type biplane 40-00 power 4-chanoel Two sheets St350 Na 408RaVeItEe AC electric-power sport flier 2-channel 05 motor $850 No 410Poker Ptole AC Scale famous EAA plane 40-power 4-channel Boild sport Precision Two sheets plus dec $1300 No412Meaqelto AC Sport Ploen twin oses 10 engines 4-chaenol AC $825 Ne 414CleelsIc Sparky AC electric-powered fun flier 05 motor 3-channel AC scaled op 1939 robber-power lavurite $050 Na 415Hawker Narelcam Uk AC Electric-power Sport Scale 15 motor 3-4 chaonefs Two sheets $1175 No 417Spnrtuaooe JO AC Pulse-rudder spontster 02-power$300 No 418Latee Mtoar AC Sport Scale model 1 930s British lightplaoe 19-power 4-channel AC$725 Ne 428fleck 600 FP Competition Class B 1 921 power Has nailable-incidence fail nit$800 Na 422Scooter AC Twn-Meter Sailplane has won Hats enent 1982 1983 plus other contests$550 Ne 423Cload Cralsec AC Old-Timer fakes 80-power 3-channel AC Two-pleco wing option 1w easy transpert Two sheets $1275 No 4249oed Tern PP Embryo Endurance robber-power fboatplane has optional wheels otick-and-tisson delight$200 No 426ChIna CAttper AC Fabulous 74-in-upon Sport Scale flying boat four 10-size engines 4-channel Three sheets f no doc $2000 No 427Profiles PP Travelair Mystery Ship Miss Loo Angeles profile oIl-balsa robber medets 1w sport Ilying 1 7-in-span $200 No 426floarcat CL eig cnmpetition-caliher profile Stunter 80 power$500 No 420Deer 0Z CL Old-Timer Stunt biplane boo protile fuselage uses 25 engine $400 No 430resIde AC Zippy little sportoter 1015 power 3-channel AC$400 No 431Locktseaet P36 AC Fun-scale twin-1 5-flier 4-channels Two oheets-$1300 No 432PItoenlo CL Updated Thunderbird-style Sfuntnr 35-40 englees$575 No 433Walls Up AC Electric-powered glider 2-3 channels 035 motor spans 52 in$450 No 434Sly SId CL leA foam-wing Combat ship won 83 Nats Use TO 049-051 power$350 No 435TItfo N AC Aerohatic biplane 40 engines 4-channels Great sport flying$050 No 436Ryan B-B Oroagham AC Scale far 4-channel 40-aize 4-cycle engines spans 83Is Two sheets$1200 No 437Ktngflaher CL Profile Carrier plane spans 40/z uses 35 engine$ 800 Na 439Ceuteor PP Embryo Endurance rubber-power fun ship has big-model characteristics $ 208 No 439Desperado AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 No 440Canatlec AC Old-Timer-like new design has huge wing br slew easy flights Pen 35 power 3 channels Two sheets$1725 No 441We WIt FP Hot small lightweight cnmpatifino ship 15 power designer Harry Murpby$ 475 Ne 442Lang Dock AC 8ig canard sport flier ton /A-09 power 2 channels Uses foam board parts$ 850 No 443Turbo Paeter CL Scale 25 power Simple lines easy building Two sheets 75 No 444FleebelE AC pusher casard sport/pattern usex 40 pusher engine 4-channel Has swept-f inward foam wings$ 850 No 445NoomItli Coagan CL Scale model popular homebuilt won Hats Uses 21 engine spans 41 a$ 925 No 446Le Crate AC Electric-powered sport flier 05 motors 3-channels Two nersions parasol en cabin$ 550 No 447thA MIen Asserica AC Old-Timer mA Texaco model 049 glow 2-channels $ 850 No 448Scroansto Baglet AC Partial plan moditying Goldbergs Eaglet kitten hatter aerobatics$ 400 No 449Settee CL SportlStunt plane 40-size 4-stroke engian builds last easy$ 800 No 450Cley Boy 74 PP CO-2 power flies 24-in-span replica famous 1949 long-failed competition ship$ 200 No 451BIt BIplane Sentioc AC Redesign sleek 1937 PP biplane 3-4 chaenels 29-40 power Two sheets$1175
Edition: Model Aviation - 1984/09
Page Numbers: 88, 89, 179, 180
iiicnaro L perry WHEN Heath first introduced Thumb Tach tachometer its relatively low cost ease operation made quite popular As modelers recognized utility having tachometer tool boxes demand increased variety tachometers became available Relative cost has decreased over years lower cost transistors integrated circuits optical tachometers sense light variations rotating pro peller easiest use have re mained types available kit form reduced cost two optical tachometer kits Heath Thumb Tach Ace Tach Master designed ease assemblyto finished short evening modeler no previous electronic kit experience Heath Ace units offer two ranges0-25000 rpm 0-5000 rpm lower range has little utility except calibration performed equivalent reading 3600 rpm Using low range measure idle rpm can easily result driving meter off scale small throttle excursions meter graduations 0-25000 rpm range 1000 rpm Heath 500 rpm Ace unit somewhat less op timum accurate measurement engine speeds around 5000-10000 rpm modifications described first made Heath tachometer some years ago make better suited use Control Line Navy Carrier events idle speed important factor performance engines often idle above 5000 rpm large meter easier read could graduated 500 rpm increments 0-25000 rpm range lower range changed 0-10000 rpm same time correlation between two ranges improved Heath Thumb Tach no longer manufactured though ex amples service Ace Tach Master different circuit Heath unit can also easily modified 0-10000 rpm low range large meter standard Ace Tach Master expanded low range will provide users chainsaw geared engines appropriate rpm scale types will improve accuracy t available expensive digital tachometers modifications detailed accompanying drawings photos Replacing two 1% precision resistors shown ion pnoto ma modifying iow-range markings lnstaliinga new meterface arethe slmpie steps needed change Ace Tach Masters iow range 0-10000 rpm ciose look right-hand picture shows two screws side meter movement holding meter face piece Ace unit Take care bend needle 88 Model Aviation Tachometer Modifications Bychanging low range Heath andAcetachometers low range can used accurate rpm measurement slower-running chainsaw geared engines affect ing high scale operation higher-rewing glow engines Ace Tech Master optical ta chometer its orlginai form having low range 0-5000 rpm Modified according tothedirections articie iow range changed 0-10000 improved utility number modeling applications meter mounting hole Heath ta chometer must enlarged switch moved slightly accommodate new meter Micronta 0-1 mA Radio Shack part #270-1752 $895 sheet metal nib bler easiest way accomplish case modifications high-speed rotary cutter Dremel tool file commonly found modelers Above The Micronta meter tight fit inside Thumb Tach case switch must movedsiightiytoaccommodatethe largermeter Below Afterattaching new meter scaie replace meter face new scaie centered meter body Left Modifications Heath Thumb Tach involve xepiaclng small standard meter left larger right easier read ahd has finer graduations Right low range Heath changed replacing aoK-ohm 1 0h precision resistor workshop isnt lot extra room Heath case Micronta meter installed cutouts need fairly accurate markings Micronta Continued page 179 September 1984 89 Drawings enlarged cutouts required Tor Heath case topj repiacement meter face above shown fuil-size rectangular outline modified meter scale fits Ace Tach Master curved outline matches Micronta meter Heath Thumb Tach Modification kits consisting required precision resistors new meter lace avaliabie See text Photos drawings author ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership131 Ace AC Inc55 Airtronics2 American Jr Heritage Models148 Applied Design Corp154 Astro Flight161 Balsa USA149 Bayou Products22 Black Hawk144 Bru Line Industries28 Byron Originals16132 140 176 CB Associates22 Carolina-Taffinder136 Johnnie Casburn Mfg23 Circus Hobbies97 Cleveland Model & Supply Co162 Consumers Guide AC Aircraft Prod..141 Consumers Hobby Corp90-91 Coverite158 Cox Hobbies101 D&D Engineering176 DGA Designs26 Dan Parsons Products177 Davey Systems Corp10155 Detroit Expo145 Larry Dodge Aero Inc177 Dougs Hobby Shop156-157 Du-Bro Products Inc14 E&L Manufacturing167 Eastcraft Specialty Products49 Eberles Hobby Shop151 FAI Model Supply150 FHS Supply Inc28 Fabtronics160 Flyline Models144 Foam Scale Models178 Fourmost Products165 Fox Manufacturing Co26 Woody Frantz136 Full Command Systems169 Futaba Corp America83 Gator AC Products173 Gemini Models150 Carl Goldberg Models170-171 Goliath Whirlwind Aircraft133 Gorham Model Products17 Great Lakes Model Co26 Great Planes Model Mfg Co1 H&N Electronics152 Historic Aviation9 Hobby Barn134-135 Hobby Horn158 Hobby Lobby International13 Hobby Radio Shop24 Hoffelt Group160 Ikon Northwest Co159 Indy RC Sales Inc146-1 47 K&B Manufacturing Co25 K&S Engineering161 Knights Air175 Kraft Systems Inc29 Kustom Kraftsmanship136 Leisure Electronics154 Eldon J Lind Co150 Lone Star Models5 MACS Products51 Majestic Models161 Marks Models47 Master Kit24 McDaniel AC Service24 Jim Messers Quality Model Products .. 144 Micro Mark177 Midwest Model Supply Co152 Midwest Products Co53 Model Magic Products159 Model Rectifier CorpCovers 2 & 3 Mutchlers Hobbies138-1 39 Nor-Cal Avionics136 North Products178 PK Products24 Pacer Technology & Resources148 Hal Payne Enterprises132 Peck-Polymers160 Penn Valley Hobby Center159 Pica Products4 Polks Model Craft Hobby6-7 Precision Sanding Tools22 AC Kits Mfg144 Radio Equipment Exchange178 Rebel AC178 Repla-Tech International178 Robbe Modellsport153 Roush Mfg Co140 SR Batteries172 S&W Hobby Supply174 Sachs-Dolmar137 Saf-Flite Models177 Satellite City150 Scratch-A-Plane41 Sig Manufacturing Co11 161 176 Sheldons Hobby Shop10142-143 St Croix Park Falls Ltd178 Sterling Models16 C Sweitzer Enterprises132 Tatone Products Co144 Taylor-Craft Ltd152 Time Life Books27 Top Flite Models Inc168 Tower Hobbies163 US Eagle166 VL Products162 WE Technical Services8 Williams Brothers164 Windsor Propeller Co16 World EnginesCover 4 World Helicopters87 World War Aeroplanes Inc178 Zenith Aviation Books15 Nick Ziroli Models140 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX asking interested parties will write Hubschmidts Hobby Center RD #1 Box 318 Ewan-Aura Rd Glassboro NJ 08028 As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Balloon RacelCrispin Continued page 86 sometimes have opportunity ride aircraft performing balloons case Burlington author such oppor tUnity BARKS arranged take ffight Tiffany flight beautiful Sunday morning light breezes Tom Anderton floated peacefully most-wonderful flight across countryside something shall never forget describe such flight Quiet hear birds singing talk people ground enjoy flight has no sensation motion except visual After airspeed zero experience thank BARKS Tom Anderton lovely bride Shay chase crew cooperation weather would like conclude little poem Tom Anderton gave Balloonists Prayer winds have welcomed softness sun has blessed its warm hands have flown high well God has laughed set gently back arms Mother Earth Tach ModslPerry Continued page 89 meter face can changed using pen India ink printed scale available both Micronta Ace meters meter cover snap fit over body meter removed gently prying up edges meter face held two screws either side move ment printed scale can glued di rectly over existing face using contact cement double-sided tape re moving meter cover face meter careful bend nee dle damage meter movement replacement 1% precision resistors should installed locations shown photos 220K-ohm resistor re places 80K-ohm R14 Heath circuit Ace circuit requires 15Kohm color code Brown Green Black Red Brown replaces 20K-ohm R18 Red Black Black Red Brown 10K-ohm Brown Black Black Red Brown replaces 499-ohm R19 Yellow White White Brown Brown small soldering iron 40 watts less should used avoid damaging printed circuit board components Continued page 180 September 1984 179 FLYING NEAR Al RPORTS BE CAREFUL PROTECT YOUR RiGHT TO FLY Safe Flying No Accident a V on - U LOa - 0 0 C/ U V mernemememmmmmmminmin o Circle numbers plans wish order 193225239262291299302310314326 332343348354358362365383386393 0 99403405408410412414415417 420422423424426427428429430 --0I CO. 432433434435436437438439440 S 442443444445446447448449450 451452453454 o 3 t3 C Price includes first-class postage within US orders outside US please add $250 Air Mail $125 ace mail Make check money order payable US funds Model Aviation AMA 1810 Samuel Morse Dr 3 0 ston VA 22090 Please allow 3 weeks delivery Please print carefully Enclosed $ NAME Ja 0 __STREETI STATE _____________________ ZIP _____________________ mememeinOin0mSmS0m0in000mSmemsmememm Use resin-core solder use acidcore solder soldering flux modifications complete assemble tachometer adjust meter zero using screw cover Recalibrate tachometer 3600 rpm low scale adjusting internal potentiometer Use incandescent fluorescent light calibration light source hold tachometer same attitude will used measure engine rpm Modification kits consisting re quired resistors new meter scale printed card stock may obtained sending $250 Richard Perry 7578 Vogels Way Springfield VA 22153 sure specify whether tachometer modified Heath Ace unit SRF FlaglMyors Continued page 96 Construction 1 Lay out piece color less transparent plastic sheet 44 x 6 fold 3 x 4% 2 Cut out copy slip sheet place folded plastic taking care have correct edge lined up fold slip sheet necessity sewing vinyl prevent vinyl sticking foot sewing machine spoiling stitch 3 Set sewing machine about 20 stitches per inch sew seams right through slip sheet Leave nee dle down can lift foot turn corners 4 Put red pennant place after sewing Seam 3 before starting Seam 4 pin piece tape can help keep slipping out place sewing 5 Cut front back layers shown slip sheet make fin ger reliefs tab Tear off slip sheet 6 Tie free ends thread ZAP-glue place 7 Remove button tip transmitter antenna Slip SRF flag over antenna Replace button 8 Cut out staple two books numbers Include x 3-in strip plastic binding two books numbers linking together fold make removal easier also dust pocket talcum powder Fold books correct numbers stuff pocket digits number goes first tens number should top going last Channel 52 put 5 above 2 9 Stuff screwdriver pouch fold flap made channel-se lecting screwdriver cutting hex end plastic tuning wand 10 Fold flap over keep every-thing flag Since vinyl sticks itself rather well havent needed other fastening plastic doesnt stick itself push flap over number books Thats 180 Model Aviation FULL*SIZE* PLANS No452 GeBeZ RO Quarter Scale spans 71 /o uses 90 power Four sheets No 453 Smoothle Profile$ 550 CL Profile rendition Palmers super-Stunter 35 power No 454 Sweet P30$ 200 FF Neat Outdoor Rubber P-30-class competition model No 193 Setto CL Stunt model McDonald winner 1 978 19801982 FAI Wend Champs375 No 225Ole RobMe AC 70 version 0138 old-timer REM controls 1 9-255425 No 239Em Weds AC Ken Willardn formation plane 4-channel 10-power $375 No 262Crastisanten CL Crash-proof trainer two sizesl 5-30- aed 35-40-power$125 No 291Cap 20 40-powered scale AC French aerobatic plane Low wing fail-dragger Two sheets $750 No 299Bee Boa Sr Sportster AC 1-scale Haffke 91 power Prototype span 38 ft Two-and-a-baR sheets $1175 No 302Eel F-iS AC Sarpolus 049 ducted Ian sport flier 2-channel Balsa wings fail loon structure$275 No 3101930 Reel Biplane AC Sport Scale 35-40 4-channel Wingspan 58 scale Two sheets$825 No 314Drake AC Ken Willards flying boat 3-channel 15-power Fly land removable gear$375 No 326Taylor Cab AC Don Srslls Schoolyard-Scale 1w 049s 2-3 channel Spans 50 in$350 No 332Zaphyr AC Small 2-channel glider hand-lavoch tow theonal slope soaring$200 No 343Wasp VI FF Mike 5toys Nats-winning Outdoor HLG$100 No 340Ceestep AC Trainer has nery forgiving flying qualities Three-channel 1 0-25-powe $425 No 354Mertys AC Giant 155-in span Sailplane ases 3 AC channels $750 No 358Plecco FF Indoor Easy B Aubber-power coolest-winner W Van Gorder $100 No 352Sapemat AC Half-A Pylon Rocerspont flier Aileron elenotor cont rid Foam wing 0 No 365Sesesantac AC Willards 40-sizo flying boat 4-channel Strap-on gear twa landplanel Two sheets $1100 No 303Cable 02 AC Fly sleek Hats-winning Sailplane AMA Mod Std Unlimited classes $75$ No 386Liner 200 AC Sport Scale replica championship Aenohatic flier Uses 40 power 4-5 channel Two sheets $1075 No 393yA KIoud beg AC Aeduced modernized nersiun sf1938 design mA Old-Timen 2w 3-channel $450 No300Bee Boo 01 AC Haffkos latest iAscale spans 75 weighs 15 lb flies 9Oorlarger Poor sheets ondoc $2225 No 390Zephyr 1100 AC AMA Class B Sailplane 3-channel AC gear $875 No 403Cab Flealpbane AC Sport Scale 04fl-1 0-size engines 4-channel AC J-3 floats isa classic $050 No 405Reflect Oveen SkIes AC Fun-type biplane 40-00 power 4-chanoel Two sheets St350 Na 408RaVeItEe AC electric-power sport flier 2-channel 05 motor $850 No 410Poker Ptole AC Scale famous EAA plane 40-power 4-channel Boild sport Precision Two sheets plus dec $1300 No412Meaqelto AC Sport Ploen twin oses 10 engines 4-chaenol AC $825 Ne 414CleelsIc Sparky AC electric-powered fun flier 05 motor 3-channel AC scaled op 1939 robber-power lavurite $050 Na 415Hawker Narelcam Uk AC Electric-power Sport Scale 15 motor 3-4 chaonefs Two sheets $1175 No 417Spnrtuaooe JO AC Pulse-rudder spontster 02-power$300 No 418Latee Mtoar AC Sport Scale model 1 930s British lightplaoe 19-power 4-channel AC$725 Ne 428fleck 600 FP Competition Class B 1 921 power Has nailable-incidence fail nit$800 Na 422Scooter AC Twn-Meter Sailplane has won Hats enent 1982 1983 plus other contests$550 Ne 423Cload Cralsec AC Old-Timer fakes 80-power 3-channel AC Two-pleco wing option 1w easy transpert Two sheets $1275 No 4249oed Tern PP Embryo Endurance robber-power fboatplane has optional wheels otick-and-tisson delight$200 No 426ChIna CAttper AC Fabulous 74-in-upon Sport Scale flying boat four 10-size engines 4-channel Three sheets f no doc $2000 No 427Profiles PP Travelair Mystery Ship Miss Loo Angeles profile oIl-balsa robber medets 1w sport Ilying 1 7-in-span $200 No 426floarcat CL eig cnmpetition-caliher profile Stunter 80 power$500 No 420Deer 0Z CL Old-Timer Stunt biplane boo protile fuselage uses 25 engine $400 No 430resIde AC Zippy little sportoter 1015 power 3-channel AC$400 No 431Locktseaet P36 AC Fun-scale twin-1 5-flier 4-channels Two oheets-$1300 No 432PItoenlo CL Updated Thunderbird-style Sfuntnr 35-40 englees$575 No 433Walls Up AC Electric-powered glider 2-3 channels 035 motor spans 52 in$450 No 434Sly SId CL leA foam-wing Combat ship won 83 Nats Use TO 049-051 power$350 No 435TItfo N AC Aerohatic biplane 40 engines 4-channels Great sport flying$050 No 436Ryan B-B Oroagham AC Scale far 4-channel 40-aize 4-cycle engines spans 83Is Two sheets$1200 No 437Ktngflaher CL Profile Carrier plane spans 40/z uses 35 engine$ 800 Na 439Ceuteor PP Embryo Endurance rubber-power fun ship has big-model characteristics $ 208 No 439Desperado AC flying wing unique negative dihedral flies 4 channels 19-40 power Foam wing$ 450 No 440Canatlec AC Old-Timer-like new design has huge wing br slew easy flights Pen 35 power 3 channels Two sheets$1725 No 441We WIt FP Hot small lightweight cnmpatifino ship 15 power designer Harry Murpby$ 475 Ne 442Lang Dock AC 8ig canard sport flier ton /A-09 power 2 channels Uses foam board parts$ 850 No 443Turbo Paeter CL Scale 25 power Simple lines easy building Two sheets 75 No 444FleebelE AC pusher casard sport/pattern usex 40 pusher engine 4-channel Has swept-f inward foam wings$ 850 No 445NoomItli Coagan CL Scale model popular homebuilt won Hats Uses 21 engine spans 41 a$ 925 No 446Le Crate AC Electric-powered sport flier 05 motors 3-channels Two nersions parasol en cabin$ 550 No 447thA MIen Asserica AC Old-Timer mA Texaco model 049 glow 2-channels $ 850 No 448Scroansto Baglet AC Partial plan moditying Goldbergs Eaglet kitten hatter aerobatics$ 400 No 449Settee CL SportlStunt plane 40-size 4-stroke engian builds last easy$ 800 No 450Cley Boy 74 PP CO-2 power flies 24-in-span replica famous 1949 long-failed competition ship$ 200 No 451BIt BIplane Sentioc AC Redesign sleek 1937 PP biplane 3-4 chaenels 29-40 power Two sheets$1175
