E lectrics Bob Kopski FLASH Ive just received letter friend fellow Electric flier Joe Beshar Joe hardworking chairman Team Selection Committee 1986 World Championship F3E Electric Glider competition held Lommel Belgium August 22-30 1986 wants spread word about opportunity personally know several very com petent filers could top-notch job representing US world meet encourage interested read Team qualification must made March 31 1986 candidates will participate Team Selection Finals latter completed June 30 1986 details please refer July 1985 issue Model Aviation page 109 write AMA HQ call Joe 201 768-5500 Joe very spirited enthusiastic has working long hard position US World Championships chance go gold survey January 1986 column pro vided coverage 1985 KRC Electric Fly want thank MA allowing some extra photos beyond normal column format KRC attempt year survey attendance col lect info planes flying year increasing attendance task gets bigger has reached level appears impossible gather info plane able ever get details modelers planes last September thought Id share some tally looking over variety informa tion collected took particular note what power systems used very large Electric array present Heres what attendees 23 States Canada used motors Astro 022 Astro 0352 Astro 035 belt4 Astro 052 Astro 05 XL1 Astro 075 XLl Astro 05 cobalt18 Astro 05 cobalt geared 10 Astro 15 cobalt4 Astro 15 cobalt gearedb Astro 15 SFI Astro 25 cobalti Astro 25 cobalt gearedl Astro 40 cobalt2 Graupner 540 & 5503 Keller 25/123 Keller 50/241 Leisure LT 50 direct2 Leisure LT 50 gearedli Robbe 50 GSE2 Robbe 30G1 othersS tabulation should clear what popular among Electric modelers survey incompletely taken meet obvious smaller cobalts geared find favor no doubt due relative ly small size weight relatively high power-handling ability motorsthis despite comparatively higher Boucher Astro Flight learned survey reflects sales experience too Demand lower-cost cobalts 52 Model Aviation Basic Electrics Radio Shack 22204 muitimeter discussed coiumn List price $3995 its frequently sale $10 off Front panei controls scaies discussed column Kopski favors cost Also Im sure smaller easyto-charge batteries used motors add appeal recent conversation Bob Eiiis Grumers Grandma magnificentlyconstructed Fieet Bipiane Power beitdrlve Astro 15 cobalt turning 13 x 8 prop Battery 12 ceils 0112 Ah capacity Photo below left shows removable battery tray bulltin contactsit fits several planes Rab bit cage Below light carrying case used transport several bulitup battery packs large Bob has occasional diffi culty keeping up demand all-American-made 05 15 motors has adding staff facility meet demand Recent addi tions capability include rather costly capital equipment expansions commutator welders precision arma ture-balancing equipment model aviation Nope Astro has com mercial military customers cobalt motor line too Anyone has dealt military specifications knows demanding life can model consumersbenefit case general products available us both 2rowin2 number 2ettinR better better time Electric knowl edge experience literature grow ing readily available No should have excuse being suc cessful Electric nowadays doesnt means mean need costly stuff get started rather great deal good merchan Continued nate 136 KRC member Ken Stinson stylized Spectra Sport MA plan No 457 wanted look different other local Spectras made side air scoops longlthin nose nose shape made possibie Kens handmade squareshaped cobalt motor manager upcoming 1986 KRCsponsored Electric Fly youre invited Id Y Horn Timer /tam 140dd L5JZOS8 GAS MOGEL 1991 BROOKLYN DODGER 96 Cabin WEST* Retail $12 95"INTRODUCTORY PRICE $3900 1936 Record Breaker 96 $6936 1939Zipper59$5356 1938 Kloud King 63 $9236 1991 Brigidier 56 $4076 1991 Super Quaker 78 $7276 1990 So Long 5B$3036 1936 Buccaneer 69 S9996 1938 Clipper MKI 72$9159 1937 Dallaire 108 $7516 1935 Miss America 89$7196 1991 Playboy Sr 80 $5116 1991 Playboy Jr 59 $3116 1938 Powerhouse 89 $0356 1990 Sailplane 76 $8976 1936 Trenton Terror 72 $9076 1999 Ranger 96$31 96 1939 Korda Wake 99 $1916 l939Mercury 72 6 Idos qualify SAM events PP & R/C feature highest quslity machine cut & sanded parts Superior Competition sheet snd strip wood wire & window msteriat Plans orig FF models essily convertible 2ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 78 Ss $1800 Midway Model GNOME R/G Hand Launch Glider$2900 Jolly Models FLINGER R/G HLG 58 Span$2906 Midway Model FAST EDDIE Acrobatic /05 EIec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3990 Astrs ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 95 Electrics$2250 Midway ULTRA MK IV 86 Geared 09 EP $3900 Midway FLYING QUAKER 09 90-95 9 stroke $6976 9ks/Midway DENNY JR 72 Alum Cowel$6396 OI*/Mi**o. RI 177A01 7551 55 . .oumomnLL~ FULL LINE OF ELECTRIC SYSTEMS S Parts Avail SHIPPING E HANDLING 14 Page CATALOOUE Up $890 add $150$200 PP/lot Ctass $001 $2000 add $225A copy will sent $2001 $9500 add $300 freewhen requested$9501 $70 ao add $356 order over $7000 add $909HOBBY HORN CA Addressees add 6% saw15173 Moran St [A] Send MO Visa/MCI#--ExpPO Box 2212 Check allow up tO 30Westminster Ca 92609 days CK clearance 7191 0938311 COD Exact Charges plus $150 Hdl Cash OnlyAft Hrs 719 8951293] 27 W5 Spiril 58 LouIs Ointroduces tho American Aviation History Series two popular frooflight rubborpower models rugged polystyrene foam models include everything need quick easy assembly Both also include Bentoms exclusive 21 gear box terrific flying capability Available hobby ahops nationwIde CALIFOUNIA_____ MODEL IMPORTS PO Box 1695 en Gross GA 92642 HIGH SPEED STEEL DRILL WITH EXTENSION CAPABLE OF REACHING 16 INCHES INTO YOUR MODELGREAT FOR PUTTING HOLE IN RIB OR BULKHEAD WEVE SOLD THOUSANDS EDROIS1/Binch ED325/32inch EDR3I63/16inch EDROI41/4inch 499 549 599 699 HARRY B HIGLEY & SONS INC P 0 sox 532 GLENWOOD ILL 60425 March 1986 53 EXTENDED DRILL PRECISION SAND AND SHAPE With. 4 Custom Aluminum MINI Extrusion Sanding Block TEE8AREspecially designed -for small sanding jobs Sander Pack contains 3 sheets assorted die-cut sandpaper Regular lengtl~ le length 10718for21 7/8 handy use TEE PB bigger jobs truer surfaces Regular Double Self Adhesive Sheet Sandpaper Customize sanding like pros 369 xli abeets per pack 12 medaa 12 fne 12 saperfne per sheet Post add 20% Catalog 25 APPLIED DESIGN CORP El Segundo CA 90245 [DCO SKY D[VI[ 65 Ignition Approved 90 Da' Warraiitv Twin Ball Bearing Crank Americas finest old-timer e4gine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug Caht icsidents add 6% sales tax ORDR DIRCT T&D RESEARCH Assocmms 6371 El Cajon Blvd Suite 115 San Dicgo CA 92115 $1 FOR BROCHURE junction aileron stop adverse yaw 3 full-size plane washout built its wing tips use model also 4 full-size Frise-type ailerons hinges near lower sur face use model 5 Use cou pled aileron rudder some transmit ters offer option 6 Build lighterweight models 7 Learn gentle transmitter control stick enter ing recovering turns particular ly steeply banked 8 Learn rotate gently climb after takeoff Sudden application load wing near stall slow speed can cause snap-roll Sud den application aileron point can likewise 9 Use aileron differential travel up down Frise-type ailerons seldom used models extra time effort needed build wing regarded waste have negative com ments about value effectiveness must agree seem have limits small models As models become larger however has definite trend Scale Frise ailerons work just well models full-size aircraft hinge point located near below ailerons lower surface pivot point some distance back ailerons leading edge aileron moves upward overhung leading edge dips below wing surface induce drag purpose balancing drag lowered aileron opposite wing thereby controlling adverse yaw Air forced up througli hinge slot flow over up-raised aileron increased ef fectiveness Air also flows through hinge slot lowered aileron help prevent stalling aileron aileron cross section actually airfoil shape similar smaller wing Full-size aircraft use other hinge arrangements will em ploy differing methods reducing control problems such washout wing tips changing airfoils between root tips differential ailerons Some aircraft carry differential extremes DH Tiger Moth example up-trav el almost zero down direction scratch-builders -designers Scale models insist upon reproducing razor-thin wing tips prototype vulnerable tip-stall control problems Some kits have seen thickened airfoil wing tips may 100% Scale fly well forgiving control sins producers reputation established having flyable prodlucts Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 something has tough along way have find ways improve designs ourselves circumvent rules 85 case hindsight answer can wonder protestor whatever neededwas used obtain proper judging Certainly point should made now fu ture competitions will judged properly Otherwise TA pattern has trigued apparent need new specialized aircraft have watched progress does seem some advancements have made could help define design needs clearly looks like will take time developmentno simple answer com plex requirement has think judging will tighten up meet rules Also people attempt meet needs rules will better off long run depend circumventing current-style models have some ideas would like try time will ever permit could entirely different type craft could better TA pattern Think Vegas findings example hope enjoyed Hals letter much did Theres lot good thoughts Turnaround Pat tern fliers would well ponder Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 53 dise size price levels availa blefrom several suppliersto help experience Electric Elation first time continuing Electric success thIng find curious previous tabulation under stand price-appeal smaller motors larger ones much have hard time understanding 25s 40s dont find acceptance Per sonally fly sizes find larger planes appealing ground-handling ability appreciate extra demands place charging ways deal charging larger packs MA May June 1985 may want consider aspects plan new Electric project ElectrIc Aeromodeling Association have some turbulent times past two organizations dedicated Electric cause first SEAM Society Electric Aircraft Model ers disappeared sometime during past year far know dead issue unfortunate because SEAM original AMA-recognized spe cialty organization Electric interests have own suspicions what hap pened doesnt matter surviving organization 136 Model Aviation EAA eyes looked pretty shaky annual dues check returned nobody box number now appears have organized foothold As far Im con cerned two organizations such very small interest group downright silly though stated purposes sounded different Thus Im feeling better now personally wish EAA well Electric needs unified representative voice what promises explosive growth next decade regard II encourage write EAA PO B6Z~ Midway City CA 92655 re quest membership information Annual dues 10 bucks less gallon glow goo get quarterly news letter Silent Fly Sheet dedicated Electric interest EAA president Bob Sliff well-known Electric modeler Watts Up columnist Model Air plane News Bob runs Hobby Horn California manufactures kits some Electric suppliers Basic Electricity now should have pretty good idea handy gadgetthe multimeterworks use properly basic level re cent installments mini-series weve seen ideas behind voltmeter cur rent meter ammeter resistance meter ohmmeter functions standard analog multimeter kind mov ing pointer Before move along digital multimeter few sidelights about analog type may interest Generally some accessory utility aspects multimeters can include such things extra test-lead jacks perhaps special switch es example Radio Shack instru ment pictured has total four test-lead jacks sockets far weve detailed use twothe normal ones example shown four jacks thats always usedthe 6ne marked -COM negative com mon Connect black test lead jack right marked ositive Volts-OhmsAmps red test lead goes connections used just about purposes Almost function switch positions operate test leads connectors remaining jacks marked 000V pretty much selfexplanatory black lead -COM red lead connec tor function switch set 250 & 1000 DCV sector youre set check out new 833-cell battery remaining jack often useful Electric modelersthe A positive DC 10-amp connector black lead -COM jack red lead function switch set bA DC sec tor youre set measure smaller motor currents perhaps charging current motor battery Remem ber connect ammeters SERIES circuit under test two special jacks common multimeters separate two normal jacks because func tion switch selects multipliers shunts other ranges cannot safely handle either very high voltage very high current applied strument via connectors switch does select proper function scale meter reading unusual put levels part routed past switch contacts separate circuitry Most meter movements have median ical zero adjustment screw meter surface directly over pointer bearings screw moves pointer resting posi tion up down pointer can brought true zero no deflection no input present may notice pointer mechanical zero drifts different positions instrument Thus meter lying down may have same zero standing up good meter really wellbalanced movement will maintain zero position instrument stand ing side lying flat other position None meters perfectly Generally set mechanical zero meter lying flat ome cases standing straight up Some instruments shown have polarity switch two-position switch does same thing reversing test lead connec tions Thus erringly connect test leads backward such pointer would deflect downward instead up scale flick switch would correct situation Personally prefer get test leads right means dis connecting reconnecting properly Some instruments like shown have switch OFF position useful transporting multimeter OFF delicate meter movement heavily dampedthe tendency pointer swing transit well reduced Remember haul meter field Next month move digital ters well also look instrument accuracy sensitivity both types mean time use enjoy expanded acquain tance multimeters sure go through manual particular product since series cannot possibly cover particulars instruments Please direct comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Happy hushed flight LZY WU2 i2V O UOU BThLD SEE OUR BACK COVER AD FOR PHOTOS EXPERT Expert R/C systems pictured new 7 ch 4 ch bath equipped dual cunver sian FM receivers Dual con version permits narrower hand less trouble adla cent channels Bath systems equipped servo re versing Bath 4 ch 7 ch nicd dual charger Mixing 7 ch anly includes aileran-rudder mixing rudderaileron mixing elevator-flap mixing flap-dawn em vatar mixing amaunt direction mixing ad lustahle 7 ch elevator aileron have dual rates engineers madel huilders have heen testing systems bath lab air fixed wing helicopter far 6 manths results have great Ser vos S-25s equipped Mitsubishi chip tar less dead band less jitter Wodd Engines has build ing servicing R/C systems tar hobby products indus trial applications since 1957 Some oar service men have over 20 years us So great R/C system smart transmitter case styling plus wide assort ment whistles bells low price backed up service department quick turn around reason able prices MALONEY 100 OK what about engine castings ia photo Jan ad published line drawing coming Ma loney 100 cubic inch magneta ignition angina show readers waking progress show ing few castings means molds finished Actually engine being tested writing 12/21/85 should have engines stock February 85 Some Maloney 100 advan tages burns inexpensive gas oline Has magneto plus electronic ignition Small size means its startable common size starters Exhaust comes oat direction elect Small engine small models fits new kits developed tar 90/120 size four strokes P QQO~ii 8960 ROSSASH AVE CINCINNATI OHIO 45236 PHONE 513 793-5900 TELEX 214557 March 1986 137
Edition: Model Aviation - 1986/03
Page Numbers: 52, 53, 136, 137
E lectrics Bob Kopski FLASH Ive just received letter friend fellow Electric flier Joe Beshar Joe hardworking chairman Team Selection Committee 1986 World Championship F3E Electric Glider competition held Lommel Belgium August 22-30 1986 wants spread word about opportunity personally know several very com petent filers could top-notch job representing US world meet encourage interested read Team qualification must made March 31 1986 candidates will participate Team Selection Finals latter completed June 30 1986 details please refer July 1985 issue Model Aviation page 109 write AMA HQ call Joe 201 768-5500 Joe very spirited enthusiastic has working long hard position US World Championships chance go gold survey January 1986 column pro vided coverage 1985 KRC Electric Fly want thank MA allowing some extra photos beyond normal column format KRC attempt year survey attendance col lect info planes flying year increasing attendance task gets bigger has reached level appears impossible gather info plane able ever get details modelers planes last September thought Id share some tally looking over variety informa tion collected took particular note what power systems used very large Electric array present Heres what attendees 23 States Canada used motors Astro 022 Astro 0352 Astro 035 belt4 Astro 052 Astro 05 XL1 Astro 075 XLl Astro 05 cobalt18 Astro 05 cobalt geared 10 Astro 15 cobalt4 Astro 15 cobalt gearedb Astro 15 SFI Astro 25 cobalti Astro 25 cobalt gearedl Astro 40 cobalt2 Graupner 540 & 5503 Keller 25/123 Keller 50/241 Leisure LT 50 direct2 Leisure LT 50 gearedli Robbe 50 GSE2 Robbe 30G1 othersS tabulation should clear what popular among Electric modelers survey incompletely taken meet obvious smaller cobalts geared find favor no doubt due relative ly small size weight relatively high power-handling ability motorsthis despite comparatively higher Boucher Astro Flight learned survey reflects sales experience too Demand lower-cost cobalts 52 Model Aviation Basic Electrics Radio Shack 22204 muitimeter discussed coiumn List price $3995 its frequently sale $10 off Front panei controls scaies discussed column Kopski favors cost Also Im sure smaller easyto-charge batteries used motors add appeal recent conversation Bob Eiiis Grumers Grandma magnificentlyconstructed Fieet Bipiane Power beitdrlve Astro 15 cobalt turning 13 x 8 prop Battery 12 ceils 0112 Ah capacity Photo below left shows removable battery tray bulltin contactsit fits several planes Rab bit cage Below light carrying case used transport several bulitup battery packs large Bob has occasional diffi culty keeping up demand all-American-made 05 15 motors has adding staff facility meet demand Recent addi tions capability include rather costly capital equipment expansions commutator welders precision arma ture-balancing equipment model aviation Nope Astro has com mercial military customers cobalt motor line too Anyone has dealt military specifications knows demanding life can model consumersbenefit case general products available us both 2rowin2 number 2ettinR better better time Electric knowl edge experience literature grow ing readily available No should have excuse being suc cessful Electric nowadays doesnt means mean need costly stuff get started rather great deal good merchan Continued nate 136 KRC member Ken Stinson stylized Spectra Sport MA plan No 457 wanted look different other local Spectras made side air scoops longlthin nose nose shape made possibie Kens handmade squareshaped cobalt motor manager upcoming 1986 KRCsponsored Electric Fly youre invited Id Y Horn Timer /tam 140dd L5JZOS8 GAS MOGEL 1991 BROOKLYN DODGER 96 Cabin WEST* Retail $12 95"INTRODUCTORY PRICE $3900 1936 Record Breaker 96 $6936 1939Zipper59$5356 1938 Kloud King 63 $9236 1991 Brigidier 56 $4076 1991 Super Quaker 78 $7276 1990 So Long 5B$3036 1936 Buccaneer 69 S9996 1938 Clipper MKI 72$9159 1937 Dallaire 108 $7516 1935 Miss America 89$7196 1991 Playboy Sr 80 $5116 1991 Playboy Jr 59 $3116 1938 Powerhouse 89 $0356 1990 Sailplane 76 $8976 1936 Trenton Terror 72 $9076 1999 Ranger 96$31 96 1939 Korda Wake 99 $1916 l939Mercury 72 6 Idos qualify SAM events PP & R/C feature highest quslity machine cut & sanded parts Superior Competition sheet snd strip wood wire & window msteriat Plans orig FF models essily convertible 2ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 78 Ss $1800 Midway Model GNOME R/G Hand Launch Glider$2900 Jolly Models FLINGER R/G HLG 58 Span$2906 Midway Model FAST EDDIE Acrobatic /05 EIec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3990 Astrs ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 95 Electrics$2250 Midway ULTRA MK IV 86 Geared 09 EP $3900 Midway FLYING QUAKER 09 90-95 9 stroke $6976 9ks/Midway DENNY JR 72 Alum Cowel$6396 OI*/Mi**o. RI 177A01 7551 55 . .oumomnLL~ FULL LINE OF ELECTRIC SYSTEMS S Parts Avail SHIPPING E HANDLING 14 Page CATALOOUE Up $890 add $150$200 PP/lot Ctass $001 $2000 add $225A copy will sent $2001 $9500 add $300 freewhen requested$9501 $70 ao add $356 order over $7000 add $909HOBBY HORN CA Addressees add 6% saw15173 Moran St [A] Send MO Visa/MCI#--ExpPO Box 2212 Check allow up tO 30Westminster Ca 92609 days CK clearance 7191 0938311 COD Exact Charges plus $150 Hdl Cash OnlyAft Hrs 719 8951293] 27 W5 Spiril 58 LouIs Ointroduces tho American Aviation History Series two popular frooflight rubborpower models rugged polystyrene foam models include everything need quick easy assembly Both also include Bentoms exclusive 21 gear box terrific flying capability Available hobby ahops nationwIde CALIFOUNIA_____ MODEL IMPORTS PO Box 1695 en Gross GA 92642 HIGH SPEED STEEL DRILL WITH EXTENSION CAPABLE OF REACHING 16 INCHES INTO YOUR MODELGREAT FOR PUTTING HOLE IN RIB OR BULKHEAD WEVE SOLD THOUSANDS EDROIS1/Binch ED325/32inch EDR3I63/16inch EDROI41/4inch 499 549 599 699 HARRY B HIGLEY & SONS INC P 0 sox 532 GLENWOOD ILL 60425 March 1986 53 EXTENDED DRILL PRECISION SAND AND SHAPE With. 4 Custom Aluminum MINI Extrusion Sanding Block TEE8AREspecially designed -for small sanding jobs Sander Pack contains 3 sheets assorted die-cut sandpaper Regular lengtl~ le length 10718for21 7/8 handy use TEE PB bigger jobs truer surfaces Regular Double Self Adhesive Sheet Sandpaper Customize sanding like pros 369 xli abeets per pack 12 medaa 12 fne 12 saperfne per sheet Post add 20% Catalog 25 APPLIED DESIGN CORP El Segundo CA 90245 [DCO SKY D[VI[ 65 Ignition Approved 90 Da' Warraiitv Twin Ball Bearing Crank Americas finest old-timer e4gine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug Caht icsidents add 6% sales tax ORDR DIRCT T&D RESEARCH Assocmms 6371 El Cajon Blvd Suite 115 San Dicgo CA 92115 $1 FOR BROCHURE junction aileron stop adverse yaw 3 full-size plane washout built its wing tips use model also 4 full-size Frise-type ailerons hinges near lower sur face use model 5 Use cou pled aileron rudder some transmit ters offer option 6 Build lighterweight models 7 Learn gentle transmitter control stick enter ing recovering turns particular ly steeply banked 8 Learn rotate gently climb after takeoff Sudden application load wing near stall slow speed can cause snap-roll Sud den application aileron point can likewise 9 Use aileron differential travel up down Frise-type ailerons seldom used models extra time effort needed build wing regarded waste have negative com ments about value effectiveness must agree seem have limits small models As models become larger however has definite trend Scale Frise ailerons work just well models full-size aircraft hinge point located near below ailerons lower surface pivot point some distance back ailerons leading edge aileron moves upward overhung leading edge dips below wing surface induce drag purpose balancing drag lowered aileron opposite wing thereby controlling adverse yaw Air forced up througli hinge slot flow over up-raised aileron increased ef fectiveness Air also flows through hinge slot lowered aileron help prevent stalling aileron aileron cross section actually airfoil shape similar smaller wing Full-size aircraft use other hinge arrangements will em ploy differing methods reducing control problems such washout wing tips changing airfoils between root tips differential ailerons Some aircraft carry differential extremes DH Tiger Moth example up-trav el almost zero down direction scratch-builders -designers Scale models insist upon reproducing razor-thin wing tips prototype vulnerable tip-stall control problems Some kits have seen thickened airfoil wing tips may 100% Scale fly well forgiving control sins producers reputation established having flyable prodlucts Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 something has tough along way have find ways improve designs ourselves circumvent rules 85 case hindsight answer can wonder protestor whatever neededwas used obtain proper judging Certainly point should made now fu ture competitions will judged properly Otherwise TA pattern has trigued apparent need new specialized aircraft have watched progress does seem some advancements have made could help define design needs clearly looks like will take time developmentno simple answer com plex requirement has think judging will tighten up meet rules Also people attempt meet needs rules will better off long run depend circumventing current-style models have some ideas would like try time will ever permit could entirely different type craft could better TA pattern Think Vegas findings example hope enjoyed Hals letter much did Theres lot good thoughts Turnaround Pat tern fliers would well ponder Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 53 dise size price levels availa blefrom several suppliersto help experience Electric Elation first time continuing Electric success thIng find curious previous tabulation under stand price-appeal smaller motors larger ones much have hard time understanding 25s 40s dont find acceptance Per sonally fly sizes find larger planes appealing ground-handling ability appreciate extra demands place charging ways deal charging larger packs MA May June 1985 may want consider aspects plan new Electric project ElectrIc Aeromodeling Association have some turbulent times past two organizations dedicated Electric cause first SEAM Society Electric Aircraft Model ers disappeared sometime during past year far know dead issue unfortunate because SEAM original AMA-recognized spe cialty organization Electric interests have own suspicions what hap pened doesnt matter surviving organization 136 Model Aviation EAA eyes looked pretty shaky annual dues check returned nobody box number now appears have organized foothold As far Im con cerned two organizations such very small interest group downright silly though stated purposes sounded different Thus Im feeling better now personally wish EAA well Electric needs unified representative voice what promises explosive growth next decade regard II encourage write EAA PO B6Z~ Midway City CA 92655 re quest membership information Annual dues 10 bucks less gallon glow goo get quarterly news letter Silent Fly Sheet dedicated Electric interest EAA president Bob Sliff well-known Electric modeler Watts Up columnist Model Air plane News Bob runs Hobby Horn California manufactures kits some Electric suppliers Basic Electricity now should have pretty good idea handy gadgetthe multimeterworks use properly basic level re cent installments mini-series weve seen ideas behind voltmeter cur rent meter ammeter resistance meter ohmmeter functions standard analog multimeter kind mov ing pointer Before move along digital multimeter few sidelights about analog type may interest Generally some accessory utility aspects multimeters can include such things extra test-lead jacks perhaps special switch es example Radio Shack instru ment pictured has total four test-lead jacks sockets far weve detailed use twothe normal ones example shown four jacks thats always usedthe 6ne marked -COM negative com mon Connect black test lead jack right marked ositive Volts-OhmsAmps red test lead goes connections used just about purposes Almost function switch positions operate test leads connectors remaining jacks marked 000V pretty much selfexplanatory black lead -COM red lead connec tor function switch set 250 & 1000 DCV sector youre set check out new 833-cell battery remaining jack often useful Electric modelersthe A positive DC 10-amp connector black lead -COM jack red lead function switch set bA DC sec tor youre set measure smaller motor currents perhaps charging current motor battery Remem ber connect ammeters SERIES circuit under test two special jacks common multimeters separate two normal jacks because func tion switch selects multipliers shunts other ranges cannot safely handle either very high voltage very high current applied strument via connectors switch does select proper function scale meter reading unusual put levels part routed past switch contacts separate circuitry Most meter movements have median ical zero adjustment screw meter surface directly over pointer bearings screw moves pointer resting posi tion up down pointer can brought true zero no deflection no input present may notice pointer mechanical zero drifts different positions instrument Thus meter lying down may have same zero standing up good meter really wellbalanced movement will maintain zero position instrument stand ing side lying flat other position None meters perfectly Generally set mechanical zero meter lying flat ome cases standing straight up Some instruments shown have polarity switch two-position switch does same thing reversing test lead connec tions Thus erringly connect test leads backward such pointer would deflect downward instead up scale flick switch would correct situation Personally prefer get test leads right means dis connecting reconnecting properly Some instruments like shown have switch OFF position useful transporting multimeter OFF delicate meter movement heavily dampedthe tendency pointer swing transit well reduced Remember haul meter field Next month move digital ters well also look instrument accuracy sensitivity both types mean time use enjoy expanded acquain tance multimeters sure go through manual particular product since series cannot possibly cover particulars instruments Please direct comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Happy hushed flight LZY WU2 i2V O UOU BThLD SEE OUR BACK COVER AD FOR PHOTOS EXPERT Expert R/C systems pictured new 7 ch 4 ch bath equipped dual cunver sian FM receivers Dual con version permits narrower hand less trouble adla cent channels Bath systems equipped servo re versing Bath 4 ch 7 ch nicd dual charger Mixing 7 ch anly includes aileran-rudder mixing rudderaileron mixing elevator-flap mixing flap-dawn em vatar mixing amaunt direction mixing ad lustahle 7 ch elevator aileron have dual rates engineers madel huilders have heen testing systems bath lab air fixed wing helicopter far 6 manths results have great Ser vos S-25s equipped Mitsubishi chip tar less dead band less jitter Wodd Engines has build ing servicing R/C systems tar hobby products indus trial applications since 1957 Some oar service men have over 20 years us So great R/C system smart transmitter case styling plus wide assort ment whistles bells low price backed up service department quick turn around reason able prices MALONEY 100 OK what about engine castings ia photo Jan ad published line drawing coming Ma loney 100 cubic inch magneta ignition angina show readers waking progress show ing few castings means molds finished Actually engine being tested writing 12/21/85 should have engines stock February 85 Some Maloney 100 advan tages burns inexpensive gas oline Has magneto plus electronic ignition Small size means its startable common size starters Exhaust comes oat direction elect Small engine small models fits new kits developed tar 90/120 size four strokes P QQO~ii 8960 ROSSASH AVE CINCINNATI OHIO 45236 PHONE 513 793-5900 TELEX 214557 March 1986 137
Edition: Model Aviation - 1986/03
Page Numbers: 52, 53, 136, 137
E lectrics Bob Kopski FLASH Ive just received letter friend fellow Electric flier Joe Beshar Joe hardworking chairman Team Selection Committee 1986 World Championship F3E Electric Glider competition held Lommel Belgium August 22-30 1986 wants spread word about opportunity personally know several very com petent filers could top-notch job representing US world meet encourage interested read Team qualification must made March 31 1986 candidates will participate Team Selection Finals latter completed June 30 1986 details please refer July 1985 issue Model Aviation page 109 write AMA HQ call Joe 201 768-5500 Joe very spirited enthusiastic has working long hard position US World Championships chance go gold survey January 1986 column pro vided coverage 1985 KRC Electric Fly want thank MA allowing some extra photos beyond normal column format KRC attempt year survey attendance col lect info planes flying year increasing attendance task gets bigger has reached level appears impossible gather info plane able ever get details modelers planes last September thought Id share some tally looking over variety informa tion collected took particular note what power systems used very large Electric array present Heres what attendees 23 States Canada used motors Astro 022 Astro 0352 Astro 035 belt4 Astro 052 Astro 05 XL1 Astro 075 XLl Astro 05 cobalt18 Astro 05 cobalt geared 10 Astro 15 cobalt4 Astro 15 cobalt gearedb Astro 15 SFI Astro 25 cobalti Astro 25 cobalt gearedl Astro 40 cobalt2 Graupner 540 & 5503 Keller 25/123 Keller 50/241 Leisure LT 50 direct2 Leisure LT 50 gearedli Robbe 50 GSE2 Robbe 30G1 othersS tabulation should clear what popular among Electric modelers survey incompletely taken meet obvious smaller cobalts geared find favor no doubt due relative ly small size weight relatively high power-handling ability motorsthis despite comparatively higher Boucher Astro Flight learned survey reflects sales experience too Demand lower-cost cobalts 52 Model Aviation Basic Electrics Radio Shack 22204 muitimeter discussed coiumn List price $3995 its frequently sale $10 off Front panei controls scaies discussed column Kopski favors cost Also Im sure smaller easyto-charge batteries used motors add appeal recent conversation Bob Eiiis Grumers Grandma magnificentlyconstructed Fieet Bipiane Power beitdrlve Astro 15 cobalt turning 13 x 8 prop Battery 12 ceils 0112 Ah capacity Photo below left shows removable battery tray bulltin contactsit fits several planes Rab bit cage Below light carrying case used transport several bulitup battery packs large Bob has occasional diffi culty keeping up demand all-American-made 05 15 motors has adding staff facility meet demand Recent addi tions capability include rather costly capital equipment expansions commutator welders precision arma ture-balancing equipment model aviation Nope Astro has com mercial military customers cobalt motor line too Anyone has dealt military specifications knows demanding life can model consumersbenefit case general products available us both 2rowin2 number 2ettinR better better time Electric knowl edge experience literature grow ing readily available No should have excuse being suc cessful Electric nowadays doesnt means mean need costly stuff get started rather great deal good merchan Continued nate 136 KRC member Ken Stinson stylized Spectra Sport MA plan No 457 wanted look different other local Spectras made side air scoops longlthin nose nose shape made possibie Kens handmade squareshaped cobalt motor manager upcoming 1986 KRCsponsored Electric Fly youre invited Id Y Horn Timer /tam 140dd L5JZOS8 GAS MOGEL 1991 BROOKLYN DODGER 96 Cabin WEST* Retail $12 95"INTRODUCTORY PRICE $3900 1936 Record Breaker 96 $6936 1939Zipper59$5356 1938 Kloud King 63 $9236 1991 Brigidier 56 $4076 1991 Super Quaker 78 $7276 1990 So Long 5B$3036 1936 Buccaneer 69 S9996 1938 Clipper MKI 72$9159 1937 Dallaire 108 $7516 1935 Miss America 89$7196 1991 Playboy Sr 80 $5116 1991 Playboy Jr 59 $3116 1938 Powerhouse 89 $0356 1990 Sailplane 76 $8976 1936 Trenton Terror 72 $9076 1999 Ranger 96$31 96 1939 Korda Wake 99 $1916 l939Mercury 72 6 Idos qualify SAM events PP & R/C feature highest quslity machine cut & sanded parts Superior Competition sheet snd strip wood wire & window msteriat Plans orig FF models essily convertible 2ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 78 Ss $1800 Midway Model GNOME R/G Hand Launch Glider$2900 Jolly Models FLINGER R/G HLG 58 Span$2906 Midway Model FAST EDDIE Acrobatic /05 EIec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3990 Astrs ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 95 Electrics$2250 Midway ULTRA MK IV 86 Geared 09 EP $3900 Midway FLYING QUAKER 09 90-95 9 stroke $6976 9ks/Midway DENNY JR 72 Alum Cowel$6396 OI*/Mi**o. RI 177A01 7551 55 . .oumomnLL~ FULL LINE OF ELECTRIC SYSTEMS S Parts Avail SHIPPING E HANDLING 14 Page CATALOOUE Up $890 add $150$200 PP/lot Ctass $001 $2000 add $225A copy will sent $2001 $9500 add $300 freewhen requested$9501 $70 ao add $356 order over $7000 add $909HOBBY HORN CA Addressees add 6% saw15173 Moran St [A] Send MO Visa/MCI#--ExpPO Box 2212 Check allow up tO 30Westminster Ca 92609 days CK clearance 7191 0938311 COD Exact Charges plus $150 Hdl Cash OnlyAft Hrs 719 8951293] 27 W5 Spiril 58 LouIs Ointroduces tho American Aviation History Series two popular frooflight rubborpower models rugged polystyrene foam models include everything need quick easy assembly Both also include Bentoms exclusive 21 gear box terrific flying capability Available hobby ahops nationwIde CALIFOUNIA_____ MODEL IMPORTS PO Box 1695 en Gross GA 92642 HIGH SPEED STEEL DRILL WITH EXTENSION CAPABLE OF REACHING 16 INCHES INTO YOUR MODELGREAT FOR PUTTING HOLE IN RIB OR BULKHEAD WEVE SOLD THOUSANDS EDROIS1/Binch ED325/32inch EDR3I63/16inch EDROI41/4inch 499 549 599 699 HARRY B HIGLEY & SONS INC P 0 sox 532 GLENWOOD ILL 60425 March 1986 53 EXTENDED DRILL PRECISION SAND AND SHAPE With. 4 Custom Aluminum MINI Extrusion Sanding Block TEE8AREspecially designed -for small sanding jobs Sander Pack contains 3 sheets assorted die-cut sandpaper Regular lengtl~ le length 10718for21 7/8 handy use TEE PB bigger jobs truer surfaces Regular Double Self Adhesive Sheet Sandpaper Customize sanding like pros 369 xli abeets per pack 12 medaa 12 fne 12 saperfne per sheet Post add 20% Catalog 25 APPLIED DESIGN CORP El Segundo CA 90245 [DCO SKY D[VI[ 65 Ignition Approved 90 Da' Warraiitv Twin Ball Bearing Crank Americas finest old-timer e4gine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug Caht icsidents add 6% sales tax ORDR DIRCT T&D RESEARCH Assocmms 6371 El Cajon Blvd Suite 115 San Dicgo CA 92115 $1 FOR BROCHURE junction aileron stop adverse yaw 3 full-size plane washout built its wing tips use model also 4 full-size Frise-type ailerons hinges near lower sur face use model 5 Use cou pled aileron rudder some transmit ters offer option 6 Build lighterweight models 7 Learn gentle transmitter control stick enter ing recovering turns particular ly steeply banked 8 Learn rotate gently climb after takeoff Sudden application load wing near stall slow speed can cause snap-roll Sud den application aileron point can likewise 9 Use aileron differential travel up down Frise-type ailerons seldom used models extra time effort needed build wing regarded waste have negative com ments about value effectiveness must agree seem have limits small models As models become larger however has definite trend Scale Frise ailerons work just well models full-size aircraft hinge point located near below ailerons lower surface pivot point some distance back ailerons leading edge aileron moves upward overhung leading edge dips below wing surface induce drag purpose balancing drag lowered aileron opposite wing thereby controlling adverse yaw Air forced up througli hinge slot flow over up-raised aileron increased ef fectiveness Air also flows through hinge slot lowered aileron help prevent stalling aileron aileron cross section actually airfoil shape similar smaller wing Full-size aircraft use other hinge arrangements will em ploy differing methods reducing control problems such washout wing tips changing airfoils between root tips differential ailerons Some aircraft carry differential extremes DH Tiger Moth example up-trav el almost zero down direction scratch-builders -designers Scale models insist upon reproducing razor-thin wing tips prototype vulnerable tip-stall control problems Some kits have seen thickened airfoil wing tips may 100% Scale fly well forgiving control sins producers reputation established having flyable prodlucts Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 something has tough along way have find ways improve designs ourselves circumvent rules 85 case hindsight answer can wonder protestor whatever neededwas used obtain proper judging Certainly point should made now fu ture competitions will judged properly Otherwise TA pattern has trigued apparent need new specialized aircraft have watched progress does seem some advancements have made could help define design needs clearly looks like will take time developmentno simple answer com plex requirement has think judging will tighten up meet rules Also people attempt meet needs rules will better off long run depend circumventing current-style models have some ideas would like try time will ever permit could entirely different type craft could better TA pattern Think Vegas findings example hope enjoyed Hals letter much did Theres lot good thoughts Turnaround Pat tern fliers would well ponder Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 53 dise size price levels availa blefrom several suppliersto help experience Electric Elation first time continuing Electric success thIng find curious previous tabulation under stand price-appeal smaller motors larger ones much have hard time understanding 25s 40s dont find acceptance Per sonally fly sizes find larger planes appealing ground-handling ability appreciate extra demands place charging ways deal charging larger packs MA May June 1985 may want consider aspects plan new Electric project ElectrIc Aeromodeling Association have some turbulent times past two organizations dedicated Electric cause first SEAM Society Electric Aircraft Model ers disappeared sometime during past year far know dead issue unfortunate because SEAM original AMA-recognized spe cialty organization Electric interests have own suspicions what hap pened doesnt matter surviving organization 136 Model Aviation EAA eyes looked pretty shaky annual dues check returned nobody box number now appears have organized foothold As far Im con cerned two organizations such very small interest group downright silly though stated purposes sounded different Thus Im feeling better now personally wish EAA well Electric needs unified representative voice what promises explosive growth next decade regard II encourage write EAA PO B6Z~ Midway City CA 92655 re quest membership information Annual dues 10 bucks less gallon glow goo get quarterly news letter Silent Fly Sheet dedicated Electric interest EAA president Bob Sliff well-known Electric modeler Watts Up columnist Model Air plane News Bob runs Hobby Horn California manufactures kits some Electric suppliers Basic Electricity now should have pretty good idea handy gadgetthe multimeterworks use properly basic level re cent installments mini-series weve seen ideas behind voltmeter cur rent meter ammeter resistance meter ohmmeter functions standard analog multimeter kind mov ing pointer Before move along digital multimeter few sidelights about analog type may interest Generally some accessory utility aspects multimeters can include such things extra test-lead jacks perhaps special switch es example Radio Shack instru ment pictured has total four test-lead jacks sockets far weve detailed use twothe normal ones example shown four jacks thats always usedthe 6ne marked -COM negative com mon Connect black test lead jack right marked ositive Volts-OhmsAmps red test lead goes connections used just about purposes Almost function switch positions operate test leads connectors remaining jacks marked 000V pretty much selfexplanatory black lead -COM red lead connec tor function switch set 250 & 1000 DCV sector youre set check out new 833-cell battery remaining jack often useful Electric modelersthe A positive DC 10-amp connector black lead -COM jack red lead function switch set bA DC sec tor youre set measure smaller motor currents perhaps charging current motor battery Remem ber connect ammeters SERIES circuit under test two special jacks common multimeters separate two normal jacks because func tion switch selects multipliers shunts other ranges cannot safely handle either very high voltage very high current applied strument via connectors switch does select proper function scale meter reading unusual put levels part routed past switch contacts separate circuitry Most meter movements have median ical zero adjustment screw meter surface directly over pointer bearings screw moves pointer resting posi tion up down pointer can brought true zero no deflection no input present may notice pointer mechanical zero drifts different positions instrument Thus meter lying down may have same zero standing up good meter really wellbalanced movement will maintain zero position instrument stand ing side lying flat other position None meters perfectly Generally set mechanical zero meter lying flat ome cases standing straight up Some instruments shown have polarity switch two-position switch does same thing reversing test lead connec tions Thus erringly connect test leads backward such pointer would deflect downward instead up scale flick switch would correct situation Personally prefer get test leads right means dis connecting reconnecting properly Some instruments like shown have switch OFF position useful transporting multimeter OFF delicate meter movement heavily dampedthe tendency pointer swing transit well reduced Remember haul meter field Next month move digital ters well also look instrument accuracy sensitivity both types mean time use enjoy expanded acquain tance multimeters sure go through manual particular product since series cannot possibly cover particulars instruments Please direct comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Happy hushed flight LZY WU2 i2V O UOU BThLD SEE OUR BACK COVER AD FOR PHOTOS EXPERT Expert R/C systems pictured new 7 ch 4 ch bath equipped dual cunver sian FM receivers Dual con version permits narrower hand less trouble adla cent channels Bath systems equipped servo re versing Bath 4 ch 7 ch nicd dual charger Mixing 7 ch anly includes aileran-rudder mixing rudderaileron mixing elevator-flap mixing flap-dawn em vatar mixing amaunt direction mixing ad lustahle 7 ch elevator aileron have dual rates engineers madel huilders have heen testing systems bath lab air fixed wing helicopter far 6 manths results have great Ser vos S-25s equipped Mitsubishi chip tar less dead band less jitter Wodd Engines has build ing servicing R/C systems tar hobby products indus trial applications since 1957 Some oar service men have over 20 years us So great R/C system smart transmitter case styling plus wide assort ment whistles bells low price backed up service department quick turn around reason able prices MALONEY 100 OK what about engine castings ia photo Jan ad published line drawing coming Ma loney 100 cubic inch magneta ignition angina show readers waking progress show ing few castings means molds finished Actually engine being tested writing 12/21/85 should have engines stock February 85 Some Maloney 100 advan tages burns inexpensive gas oline Has magneto plus electronic ignition Small size means its startable common size starters Exhaust comes oat direction elect Small engine small models fits new kits developed tar 90/120 size four strokes P QQO~ii 8960 ROSSASH AVE CINCINNATI OHIO 45236 PHONE 513 793-5900 TELEX 214557 March 1986 137
Edition: Model Aviation - 1986/03
Page Numbers: 52, 53, 136, 137
E lectrics Bob Kopski FLASH Ive just received letter friend fellow Electric flier Joe Beshar Joe hardworking chairman Team Selection Committee 1986 World Championship F3E Electric Glider competition held Lommel Belgium August 22-30 1986 wants spread word about opportunity personally know several very com petent filers could top-notch job representing US world meet encourage interested read Team qualification must made March 31 1986 candidates will participate Team Selection Finals latter completed June 30 1986 details please refer July 1985 issue Model Aviation page 109 write AMA HQ call Joe 201 768-5500 Joe very spirited enthusiastic has working long hard position US World Championships chance go gold survey January 1986 column pro vided coverage 1985 KRC Electric Fly want thank MA allowing some extra photos beyond normal column format KRC attempt year survey attendance col lect info planes flying year increasing attendance task gets bigger has reached level appears impossible gather info plane able ever get details modelers planes last September thought Id share some tally looking over variety informa tion collected took particular note what power systems used very large Electric array present Heres what attendees 23 States Canada used motors Astro 022 Astro 0352 Astro 035 belt4 Astro 052 Astro 05 XL1 Astro 075 XLl Astro 05 cobalt18 Astro 05 cobalt geared 10 Astro 15 cobalt4 Astro 15 cobalt gearedb Astro 15 SFI Astro 25 cobalti Astro 25 cobalt gearedl Astro 40 cobalt2 Graupner 540 & 5503 Keller 25/123 Keller 50/241 Leisure LT 50 direct2 Leisure LT 50 gearedli Robbe 50 GSE2 Robbe 30G1 othersS tabulation should clear what popular among Electric modelers survey incompletely taken meet obvious smaller cobalts geared find favor no doubt due relative ly small size weight relatively high power-handling ability motorsthis despite comparatively higher Boucher Astro Flight learned survey reflects sales experience too Demand lower-cost cobalts 52 Model Aviation Basic Electrics Radio Shack 22204 muitimeter discussed coiumn List price $3995 its frequently sale $10 off Front panei controls scaies discussed column Kopski favors cost Also Im sure smaller easyto-charge batteries used motors add appeal recent conversation Bob Eiiis Grumers Grandma magnificentlyconstructed Fieet Bipiane Power beitdrlve Astro 15 cobalt turning 13 x 8 prop Battery 12 ceils 0112 Ah capacity Photo below left shows removable battery tray bulltin contactsit fits several planes Rab bit cage Below light carrying case used transport several bulitup battery packs large Bob has occasional diffi culty keeping up demand all-American-made 05 15 motors has adding staff facility meet demand Recent addi tions capability include rather costly capital equipment expansions commutator welders precision arma ture-balancing equipment model aviation Nope Astro has com mercial military customers cobalt motor line too Anyone has dealt military specifications knows demanding life can model consumersbenefit case general products available us both 2rowin2 number 2ettinR better better time Electric knowl edge experience literature grow ing readily available No should have excuse being suc cessful Electric nowadays doesnt means mean need costly stuff get started rather great deal good merchan Continued nate 136 KRC member Ken Stinson stylized Spectra Sport MA plan No 457 wanted look different other local Spectras made side air scoops longlthin nose nose shape made possibie Kens handmade squareshaped cobalt motor manager upcoming 1986 KRCsponsored Electric Fly youre invited Id Y Horn Timer /tam 140dd L5JZOS8 GAS MOGEL 1991 BROOKLYN DODGER 96 Cabin WEST* Retail $12 95"INTRODUCTORY PRICE $3900 1936 Record Breaker 96 $6936 1939Zipper59$5356 1938 Kloud King 63 $9236 1991 Brigidier 56 $4076 1991 Super Quaker 78 $7276 1990 So Long 5B$3036 1936 Buccaneer 69 S9996 1938 Clipper MKI 72$9159 1937 Dallaire 108 $7516 1935 Miss America 89$7196 1991 Playboy Sr 80 $5116 1991 Playboy Jr 59 $3116 1938 Powerhouse 89 $0356 1990 Sailplane 76 $8976 1936 Trenton Terror 72 $9076 1999 Ranger 96$31 96 1939 Korda Wake 99 $1916 l939Mercury 72 6 Idos qualify SAM events PP & R/C feature highest quslity machine cut & sanded parts Superior Competition sheet snd strip wood wire & window msteriat Plans orig FF models essily convertible 2ch R/G KITS Sailplanes Electric power Gas Hobby Horn SENSOAR Glider 78 Ss $1800 Midway Model GNOME R/G Hand Launch Glider$2900 Jolly Models FLINGER R/G HLG 58 Span$2906 Midway Model FAST EDDIE Acrobatic /05 EIec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3990 Astrs ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 95 Electrics$2250 Midway ULTRA MK IV 86 Geared 09 EP $3900 Midway FLYING QUAKER 09 90-95 9 stroke $6976 9ks/Midway DENNY JR 72 Alum Cowel$6396 OI*/Mi**o. RI 177A01 7551 55 . .oumomnLL~ FULL LINE OF ELECTRIC SYSTEMS S Parts Avail SHIPPING E HANDLING 14 Page CATALOOUE Up $890 add $150$200 PP/lot Ctass $001 $2000 add $225A copy will sent $2001 $9500 add $300 freewhen requested$9501 $70 ao add $356 order over $7000 add $909HOBBY HORN CA Addressees add 6% saw15173 Moran St [A] Send MO Visa/MCI#--ExpPO Box 2212 Check allow up tO 30Westminster Ca 92609 days CK clearance 7191 0938311 COD Exact Charges plus $150 Hdl Cash OnlyAft Hrs 719 8951293] 27 W5 Spiril 58 LouIs Ointroduces tho American Aviation History Series two popular frooflight rubborpower models rugged polystyrene foam models include everything need quick easy assembly Both also include Bentoms exclusive 21 gear box terrific flying capability Available hobby ahops nationwIde CALIFOUNIA_____ MODEL IMPORTS PO Box 1695 en Gross GA 92642 HIGH SPEED STEEL DRILL WITH EXTENSION CAPABLE OF REACHING 16 INCHES INTO YOUR MODELGREAT FOR PUTTING HOLE IN RIB OR BULKHEAD WEVE SOLD THOUSANDS EDROIS1/Binch ED325/32inch EDR3I63/16inch EDROI41/4inch 499 549 599 699 HARRY B HIGLEY & SONS INC P 0 sox 532 GLENWOOD ILL 60425 March 1986 53 EXTENDED DRILL PRECISION SAND AND SHAPE With. 4 Custom Aluminum MINI Extrusion Sanding Block TEE8AREspecially designed -for small sanding jobs Sander Pack contains 3 sheets assorted die-cut sandpaper Regular lengtl~ le length 10718for21 7/8 handy use TEE PB bigger jobs truer surfaces Regular Double Self Adhesive Sheet Sandpaper Customize sanding like pros 369 xli abeets per pack 12 medaa 12 fne 12 saperfne per sheet Post add 20% Catalog 25 APPLIED DESIGN CORP El Segundo CA 90245 [DCO SKY D[VI[ 65 Ignition Approved 90 Da' Warraiitv Twin Ball Bearing Crank Americas finest old-timer e4gine Originally designed Hassad & Havlik replica engine resonic tuning ensures continuous flow power through speed range Look out green one$ goodbye red headT&Ds replica Sky Devil 65 $279 less coil cond & plug Caht icsidents add 6% sales tax ORDR DIRCT T&D RESEARCH Assocmms 6371 El Cajon Blvd Suite 115 San Dicgo CA 92115 $1 FOR BROCHURE junction aileron stop adverse yaw 3 full-size plane washout built its wing tips use model also 4 full-size Frise-type ailerons hinges near lower sur face use model 5 Use cou pled aileron rudder some transmit ters offer option 6 Build lighterweight models 7 Learn gentle transmitter control stick enter ing recovering turns particular ly steeply banked 8 Learn rotate gently climb after takeoff Sudden application load wing near stall slow speed can cause snap-roll Sud den application aileron point can likewise 9 Use aileron differential travel up down Frise-type ailerons seldom used models extra time effort needed build wing regarded waste have negative com ments about value effectiveness must agree seem have limits small models As models become larger however has definite trend Scale Frise ailerons work just well models full-size aircraft hinge point located near below ailerons lower surface pivot point some distance back ailerons leading edge aileron moves upward overhung leading edge dips below wing surface induce drag purpose balancing drag lowered aileron opposite wing thereby controlling adverse yaw Air forced up througli hinge slot flow over up-raised aileron increased ef fectiveness Air also flows through hinge slot lowered aileron help prevent stalling aileron aileron cross section actually airfoil shape similar smaller wing Full-size aircraft use other hinge arrangements will em ploy differing methods reducing control problems such washout wing tips changing airfoils between root tips differential ailerons Some aircraft carry differential extremes DH Tiger Moth example up-trav el almost zero down direction scratch-builders -designers Scale models insist upon reproducing razor-thin wing tips prototype vulnerable tip-stall control problems Some kits have seen thickened airfoil wing tips may 100% Scale fly well forgiving control sins producers reputation established having flyable prodlucts Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Aerobatics/Van Putte Continued page 51 something has tough along way have find ways improve designs ourselves circumvent rules 85 case hindsight answer can wonder protestor whatever neededwas used obtain proper judging Certainly point should made now fu ture competitions will judged properly Otherwise TA pattern has trigued apparent need new specialized aircraft have watched progress does seem some advancements have made could help define design needs clearly looks like will take time developmentno simple answer com plex requirement has think judging will tighten up meet rules Also people attempt meet needs rules will better off long run depend circumventing current-style models have some ideas would like try time will ever permit could entirely different type craft could better TA pattern Think Vegas findings example hope enjoyed Hals letter much did Theres lot good thoughts Turnaround Pat tern fliers would well ponder Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 53 dise size price levels availa blefrom several suppliersto help experience Electric Elation first time continuing Electric success thIng find curious previous tabulation under stand price-appeal smaller motors larger ones much have hard time understanding 25s 40s dont find acceptance Per sonally fly sizes find larger planes appealing ground-handling ability appreciate extra demands place charging ways deal charging larger packs MA May June 1985 may want consider aspects plan new Electric project ElectrIc Aeromodeling Association have some turbulent times past two organizations dedicated Electric cause first SEAM Society Electric Aircraft Model ers disappeared sometime during past year far know dead issue unfortunate because SEAM original AMA-recognized spe cialty organization Electric interests have own suspicions what hap pened doesnt matter surviving organization 136 Model Aviation EAA eyes looked pretty shaky annual dues check returned nobody box number now appears have organized foothold As far Im con cerned two organizations such very small interest group downright silly though stated purposes sounded different Thus Im feeling better now personally wish EAA well Electric needs unified representative voice what promises explosive growth next decade regard II encourage write EAA PO B6Z~ Midway City CA 92655 re quest membership information Annual dues 10 bucks less gallon glow goo get quarterly news letter Silent Fly Sheet dedicated Electric interest EAA president Bob Sliff well-known Electric modeler Watts Up columnist Model Air plane News Bob runs Hobby Horn California manufactures kits some Electric suppliers Basic Electricity now should have pretty good idea handy gadgetthe multimeterworks use properly basic level re cent installments mini-series weve seen ideas behind voltmeter cur rent meter ammeter resistance meter ohmmeter functions standard analog multimeter kind mov ing pointer Before move along digital multimeter few sidelights about analog type may interest Generally some accessory utility aspects multimeters can include such things extra test-lead jacks perhaps special switch es example Radio Shack instru ment pictured has total four test-lead jacks sockets far weve detailed use twothe normal ones example shown four jacks thats always usedthe 6ne marked -COM negative com mon Connect black test lead jack right marked ositive Volts-OhmsAmps red test lead goes connections used just about purposes Almost function switch positions operate test leads connectors remaining jacks marked 000V pretty much selfexplanatory black lead -COM red lead connec tor function switch set 250 & 1000 DCV sector youre set check out new 833-cell battery remaining jack often useful Electric modelersthe A positive DC 10-amp connector black lead -COM jack red lead function switch set bA DC sec tor youre set measure smaller motor currents perhaps charging current motor battery Remem ber connect ammeters SERIES circuit under test two special jacks common multimeters separate two normal jacks because func tion switch selects multipliers shunts other ranges cannot safely handle either very high voltage very high current applied strument via connectors switch does select proper function scale meter reading unusual put levels part routed past switch contacts separate circuitry Most meter movements have median ical zero adjustment screw meter surface directly over pointer bearings screw moves pointer resting posi tion up down pointer can brought true zero no deflection no input present may notice pointer mechanical zero drifts different positions instrument Thus meter lying down may have same zero standing up good meter really wellbalanced movement will maintain zero position instrument stand ing side lying flat other position None meters perfectly Generally set mechanical zero meter lying flat ome cases standing straight up Some instruments shown have polarity switch two-position switch does same thing reversing test lead connec tions Thus erringly connect test leads backward such pointer would deflect downward instead up scale flick switch would correct situation Personally prefer get test leads right means dis connecting reconnecting properly Some instruments like shown have switch OFF position useful transporting multimeter OFF delicate meter movement heavily dampedthe tendency pointer swing transit well reduced Remember haul meter field Next month move digital ters well also look instrument accuracy sensitivity both types mean time use enjoy expanded acquain tance multimeters sure go through manual particular product since series cannot possibly cover particulars instruments Please direct comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Happy hushed flight LZY WU2 i2V O UOU BThLD SEE OUR BACK COVER AD FOR PHOTOS EXPERT Expert R/C systems pictured new 7 ch 4 ch bath equipped dual cunver sian FM receivers Dual con version permits narrower hand less trouble adla cent channels Bath systems equipped servo re versing Bath 4 ch 7 ch nicd dual charger Mixing 7 ch anly includes aileran-rudder mixing rudderaileron mixing elevator-flap mixing flap-dawn em vatar mixing amaunt direction mixing ad lustahle 7 ch elevator aileron have dual rates engineers madel huilders have heen testing systems bath lab air fixed wing helicopter far 6 manths results have great Ser vos S-25s equipped Mitsubishi chip tar less dead band less jitter Wodd Engines has build ing servicing R/C systems tar hobby products indus trial applications since 1957 Some oar service men have over 20 years us So great R/C system smart transmitter case styling plus wide assort ment whistles bells low price backed up service department quick turn around reason able prices MALONEY 100 OK what about engine castings ia photo Jan ad published line drawing coming Ma loney 100 cubic inch magneta ignition angina show readers waking progress show ing few castings means molds finished Actually engine being tested writing 12/21/85 should have engines stock February 85 Some Maloney 100 advan tages burns inexpensive gas oline Has magneto plus electronic ignition Small size means its startable common size starters Exhaust comes oat direction elect Small engine small models fits new kits developed tar 90/120 size four strokes P QQO~ii 8960 ROSSASH AVE CINCINNATI OHIO 45236 PHONE 513 793-5900 TELEX 214557 March 1986 137