George M Myers D 7adiomchnique ABSTRACT The Old Flying Aces magazine Bat tery Management System NOSTALGIA August 26 attended Sus sex NJ Airshow met Steve Macjag 530 Allentown Rd Parsippany NJ 07054 re sells aviation memorabilia perused old books bought March 1936 issue Flying Aces magazine happy hours youth spent Flying Aces 15 cents per copy watercolor painting provided cover art article Flying Aces wind tun nel located Casey Jones School Aeronautics article written Av rum Zier fellow employee Grumman Aero nautical Engineering Corporation best known now F-14 Tomcat Top Gun fame also built lunar module took Buzz Al drin moon Casey Jones School Aeronautics still exists across Parkway La Guardia Airport borough Queens fellow Isame William Winter put CHARGING JACK DIODE F jii 4 DEANS CHARGING JACK F article build model China Clip per Frank Zaic wrote piece Indoor flying D Booton R Pickard contributed plans rubber-powered Speed model Howard Hughess racer now hanging Smithsonian plans showed fuselage made hollowing out block balsa short wings HR-I also long wings transcontinental air racing covered balsa sheet included automatic anti-torque aileron control full size plans sticks-andtissue model Rumanian IAR 14 pursuit plane Flying Aces Tractor sliced rib tis sue covered Indoor model Three views given Messerschmitt M29 Vultee Attack Ship Westland Pterodactyl tailless design issue also contained three pieces flying fiction Phineas Pinkham character Joe Archibald exhibited persons similar todays Bart Simpson no doubt same effect contemporary youth war/action piece Donald Keyhoe Kerry Keen aviation detec tive story Arch Whitehouse completed set what catches attention now four ser ious pieces world politics Lt H Latane Lewis II article entitled Can AA guns defend us described great detail equipment procedures used anti-aircraft warfare Russia Power Enigma David Martin detailed what known about Russian Air Force wasnt much Russia clashes Japan C B Mayshark postulated conflict its devel opment never happened because Adolph Hit ler attacked Russia first fourth piece Happy Landings World War RAF combat pilot Lt Arch Whitehouse explained Pan American airways Chins Clipper extended Americas fluence westward important Mr Whitehouse showed extension created need expanded Pacific Navy requiring men lots new equipment Everything discussed became extremely important America just five years later Hawaii Wake land Philippines contained bases China Clipper patriotism magazine open discussion another war would meet test also pages carSOHETIHE PLUG IS LOCATED HERE HAKE CONNECTIONS AT OR NEAR SWITCH INSIDE TRANSHITTER DIODE ND14 SWITCH NO 1 toons jokes contest reports flight instructions vignettes WW ads models engines Fleischmans Yeast Charles Atlas takes breath away realize that just issue did month will grant have Perestroika Sa dam Hussein now TV competes ma/m/N RECEIVER 7WJILIT H44#1 TO SERVOS 1 SCELL BATTERY LIII ODE NO 2 SWITCH NO 2 5CELL BATTERY NO 2 Left Diode installation Gary Pattersons two packs setup eliminates some noise ong-lead arge airpianes Right Deans instailation circumvent internal diode 22 Model Aviation 70 Froshlich Farm Rd Hicksvllie NY 11801 Battery Management System shown charging transmitter receiver pack glow battery Versatile reliable cludes good documentation Flying Aces cover March 1936 used permission Carsten PublicatIons terial wars fiction humor little else men 1930s created Fly ing Aces month radio broadcasts con tend Yet produced magazine sat isfactory material very young Yup pies veterans WW packaged airplane models fact fiction world politics humor afraid give youth day comprehensive picture life though slanted toward aviation AA Wyn President Editor Herb Powell Managing Editor Overall impression heroic Flying Aces magazine name implies sold heroes days Eddie Rickenbacker Charles Lindbergh Amelia Earhart Jackie Cochran skies Beebe brothers stratosphere deepest parts ocean Frank Buck Africa Richard Byrd Arc tic dog-sleds racing Nome Alaska save people diphtheria Di onne quintuplets Joe Louis Jesse Owens Franklin Delano Roosevelt comic strips heroic Smilin Jack Dick Tracy Superman Batman suppose time movie Smilin Jack makes wonder present-day model magazines concentrate much gadgets finishes little life todays heroes writes about have same feelings Id enjoy hearing particularly have some usable ideas deal basic theme education RK Eleetronics offers Battery Management Sys tem $18995 through Hobby Shops mail might ask What should care Well true constant-current see August 90 RT discussion battery charger/cycler what does charge three groups nine cells precise 17 hours 4 minutes derived 110 VAC 60 Hz line current drops trickle charge System uses MOSFETs comes well-written manual logically de signed well-constructed its intended pur pose battery maintenance thing sets device apart third output can used gyro pack helicopter on-board glow driver single-cell glow plug battery Actually since doesnt care cells being charged nine allowed could hook up two 4cell 1200 mA flight packs series charge Aux lead could hook up two 600 mAh packs series RX cable well take care push discharge button So actually can charge transmitter up four flight packs same time feel need Some people have airplane per transmitter days Push button System discharges fouror five-cell receiver batteries switch-selected 300 500 mA current end point 11 VDC per cell also discharges eight- ninecell transmitter batteries 300 mA rate end point 11 VDC/cell case presents discharge time red LED dis play reverts first overnight charging trickle charging transmitter charging current set 50 mA overnight 10 mA trickle Receiver charg ing current adjustable over range 0 200 mA 10 mA trickle AUX output set 125 mA overnight 25 mA trickle LEDs light show what happening no current flowing dont light process inter rupted such failure house current system comes back line over night rate does 17 hours 4 min utes before reverting trickle charging idea always get full charge no mat ter what happens enough time Yes could get 34 hour 7 minute charge way So worse little overcharging rate batteries can tolerate being undercharged knowing Ive used BMS run some tests found performs advertised Being overnight charger very safe no secret some fast quick chargers market occasionally forget shut off cooks battery packs must watch System have couple weeks before damage will done should System forget drop trickle dont have watch momentary shorts charging cable no damage internal 4 amp fuse protects against major errors Since System plastic case isolated 110 VAC line remote transformer shoek hazard should nil Nice design Battery Management System RK Electronics 304 Fox Run Hudson NH 03051 $18995 &S Mr Howard Decker Reno NV has Tower RC system wants test transmitter bat teries has run fact di ode charging system cant use ESV expanded scale voltmeter asks ques tion comes up often What diode can get rid purpose diode protect against some small bit metal like hex wrench screwdriver point getting charging Continued page 147 February 1991 23 keep rotors turning dead-sticks just would powered flare landing subsequent letter Charles told stunning episode autogyro Having run out fuel still distance runway hed made forced landing cornfield stalks eight feet high broke blade off rudder Charles repaired blades CyA flew several timeswith perfectly nor mal performance Imagine astonishment discover after last flight both blades gone missing blades way never found reconstructed Charless kit plans rather rough formbut enough details serve seasoned scratch-builder Should want take project Ill glad either provide manufacturers address consult about scratch-building Control Line autogyro Being desperately short photos Free Flight Control Line sub jects Ive slanted first column heavily toward RC Im hoping contributions FF CL communities keep some bal ance Way back 1947 Engineering Devel opment Co EDCO Del Mar CA kitted CL autogyro built powered Rocket 46 couldnt get fly creature wouldnt move fast enough achieve line tension much less take off couple guys about generation say theyve either some off ad hA Gas 320 Gas 450 A-B Gas 781 B-C-0 Gas 788 B-C-0 Gas SATELLITE FREE FLIGHT KITS Full Kit $2795 Full Kit $3095 Full Kit $42 95 Pro Kit $4795 Full Kit $67 95 CATALOG Send selt rIctressert stamped envelope address shown Orders SAppIrri Ire rant C 0 U Add 5395 SOpping Handling S uccess personally observed others have Have ever seen fly Id like hear meantime go build modeland en joy D Radio Technique/Myers Continued page 23 jack discharging transmitter battery can have two bad consequences First charge will gone want flywhich no problem look meter before take off Second bit metal can get mighty hot fast can burn start fire field box can go inside transmitter find di ode short Out soldering wire across dont like idea simpler better ap proach buy Deans Charge Connector set ACE R/C Part 19K55 install side transmitter making direct connec tions battery pack inside can charge usual way test through Deans can both through Deans handy want fast charging field instance Deans pins pro tected external shorts Apparently October 1990 column struck few chords readers Ive several letters commenting some points mentioned Gary Patterson Pattersons Hobbies 103 North Jeffers North Platte NE 69101 sent hint noise elimination long-lead large air planes Gary uses two five-cell 800 mAh packs two separate switch harnesses both plugged receiver power airborne system positive lead contains diode two batteries cant charge another re ports good results redundant battery advan tage well Gary uses six servos places elevator servo tail aileron servos wings must have some long leads responding advertisers mention read about ModelAviation IfflUVAT1Y MODEL PRODUCTS INC BRINGS YOU. h sohed try EWU \wnorysiroro/ U U N V UTM BIG 37 oz TUBE SUER STRONG SUPER FLEXABLE SUPER FAST GRIPS TIGHT WHERE OThERS OONT REMOVABLE WITHOUT TRACESUPER ADHESIVE Totally Ctear Simple 500 tOre Part No Mlaiogl - Holds Canopies ANY Motorist tlncloding FisotcCovedogst No Fogging Clean Parts Hoirts FirewAlo Fiberglass - Allows Servos Mounted Adywbore Fdorout hat Totally Nemovabie Vdaoot Causing Osorage PFM, Austlable Hobby Netoiler CaN lesealin Irtedet Frsd5s Toll Free 1000 700-3100 Orderi Dealer loqoitles WantedlAdd $250 silIptIlog & HerlAlingi PPM DoEs ThE WORK OF MANY AD&1Es1W5 Use tAo Thread Locir Netter Slhcooe Odes 10 1/4 tlrrre Better C/Ks Attouhing Canotens Ftastc Fibergiaso Fats PPM USOD ST IlIR PbS - Cot An JoErroon Isee RC Modeler AEAI OS owlet Bettor Totres tMasters teSnIrer 00 Scale Teaott - Bonn Sopor lEditor Scale NC Modelert Frasir Cooteto CalAmnist Flying Models - Greg Nantey tSoooreastem Contotednor Scale BC Modeler Masters Compeotori - Mike Man Super Star helicopter FitotI po Staa 4365Ad. IIbe frm Margate FL 33063Hobby Lobby $995 February 1991 147 ** 4620 CRANDALL-LVILLE R DON INDIANA 47112 e see ion o emo e ro o e irp anes e pro essiona aMLISTED BELOWIn Business since 1973 PRICES SUBJECT TO CHANGE WI THOUT NOTICE IS JUST FEW OF THE MFG WE STOCK HOURS MONDAYTHRUTHURSDAY9AAU 5PM FRIDAY 9AM-2PM A-JUSTOJIGFOXCLOSED SATURDAY & SUNDAY E 812 366-3141 AMBROIDFUTABASONIC-TRONICS FFORD KITS AVAILABLE SHORTLY ARCORUBBERBANDSGOLDBERGSTERLING BRIDIGAS MODEL PRODSULLIVAN 4 TWIN COMANCHE COMANCHE & MORE DAVEYS SYSTEMSHALLCOTOP FLITE $11995 COVERITEHOBBYPOXYVS ENGINES EAA rn mUflI DEVCONHOT STUFFLANIER MILLERStafford DREMELK&BMFGNORTHEAST50 5CAE SF007 PATTEON F AC ENGINOS DYNAFILITESAITOZINGER PROPSMFUFIED bALSA & SPOUCO CONSTOUCTrON SOXTOP dIG MOLDED COWS PANTS WINDSHIELD complete listing etcplease send stamped self-address enve lope DEALERS WANTED F K KITS IGlur N Stickum j BUiIdLlfll & Flyum need help call us arf/fibeiglass t boxRAFTER HOURS CALL WE MIGHT BE HERE fusciage j Y995I THANKS FOR YOUR BUSINESS BILL & JOYCE STAFFORD AIRCOUPE $9995 Obechi Large Sheets Please call 415 462-0672 send SASE 850 Concord Street Pleasanton CA 94566
Edition: Model Aviation - 1991/02
Page Numbers: 22, 23, 147
Edition: Model Aviation - 1991/02
Page Numbers: 22, 23, 147
George M Myers D 7adiomchnique ABSTRACT The Old Flying Aces magazine Bat tery Management System NOSTALGIA August 26 attended Sus sex NJ Airshow met Steve Macjag 530 Allentown Rd Parsippany NJ 07054 re sells aviation memorabilia perused old books bought March 1936 issue Flying Aces magazine happy hours youth spent Flying Aces 15 cents per copy watercolor painting provided cover art article Flying Aces wind tun nel located Casey Jones School Aeronautics article written Av rum Zier fellow employee Grumman Aero nautical Engineering Corporation best known now F-14 Tomcat Top Gun fame also built lunar module took Buzz Al drin moon Casey Jones School Aeronautics still exists across Parkway La Guardia Airport borough Queens fellow Isame William Winter put CHARGING JACK DIODE F jii 4 DEANS CHARGING JACK F article build model China Clip per Frank Zaic wrote piece Indoor flying D Booton R Pickard contributed plans rubber-powered Speed model Howard Hughess racer now hanging Smithsonian plans showed fuselage made hollowing out block balsa short wings HR-I also long wings transcontinental air racing covered balsa sheet included automatic anti-torque aileron control full size plans sticks-andtissue model Rumanian IAR 14 pursuit plane Flying Aces Tractor sliced rib tis sue covered Indoor model Three views given Messerschmitt M29 Vultee Attack Ship Westland Pterodactyl tailless design issue also contained three pieces flying fiction Phineas Pinkham character Joe Archibald exhibited persons similar todays Bart Simpson no doubt same effect contemporary youth war/action piece Donald Keyhoe Kerry Keen aviation detec tive story Arch Whitehouse completed set what catches attention now four ser ious pieces world politics Lt H Latane Lewis II article entitled Can AA guns defend us described great detail equipment procedures used anti-aircraft warfare Russia Power Enigma David Martin detailed what known about Russian Air Force wasnt much Russia clashes Japan C B Mayshark postulated conflict its devel opment never happened because Adolph Hit ler attacked Russia first fourth piece Happy Landings World War RAF combat pilot Lt Arch Whitehouse explained Pan American airways Chins Clipper extended Americas fluence westward important Mr Whitehouse showed extension created need expanded Pacific Navy requiring men lots new equipment Everything discussed became extremely important America just five years later Hawaii Wake land Philippines contained bases China Clipper patriotism magazine open discussion another war would meet test also pages carSOHETIHE PLUG IS LOCATED HERE HAKE CONNECTIONS AT OR NEAR SWITCH INSIDE TRANSHITTER DIODE ND14 SWITCH NO 1 toons jokes contest reports flight instructions vignettes WW ads models engines Fleischmans Yeast Charles Atlas takes breath away realize that just issue did month will grant have Perestroika Sa dam Hussein now TV competes ma/m/N RECEIVER 7WJILIT H44#1 TO SERVOS 1 SCELL BATTERY LIII ODE NO 2 SWITCH NO 2 5CELL BATTERY NO 2 Left Diode installation Gary Pattersons two packs setup eliminates some noise ong-lead arge airpianes Right Deans instailation circumvent internal diode 22 Model Aviation 70 Froshlich Farm Rd Hicksvllie NY 11801 Battery Management System shown charging transmitter receiver pack glow battery Versatile reliable cludes good documentation Flying Aces cover March 1936 used permission Carsten PublicatIons terial wars fiction humor little else men 1930s created Fly ing Aces month radio broadcasts con tend Yet produced magazine sat isfactory material very young Yup pies veterans WW packaged airplane models fact fiction world politics humor afraid give youth day comprehensive picture life though slanted toward aviation AA Wyn President Editor Herb Powell Managing Editor Overall impression heroic Flying Aces magazine name implies sold heroes days Eddie Rickenbacker Charles Lindbergh Amelia Earhart Jackie Cochran skies Beebe brothers stratosphere deepest parts ocean Frank Buck Africa Richard Byrd Arc tic dog-sleds racing Nome Alaska save people diphtheria Di onne quintuplets Joe Louis Jesse Owens Franklin Delano Roosevelt comic strips heroic Smilin Jack Dick Tracy Superman Batman suppose time movie Smilin Jack makes wonder present-day model magazines concentrate much gadgets finishes little life todays heroes writes about have same feelings Id enjoy hearing particularly have some usable ideas deal basic theme education RK Eleetronics offers Battery Management Sys tem $18995 through Hobby Shops mail might ask What should care Well true constant-current see August 90 RT discussion battery charger/cycler what does charge three groups nine cells precise 17 hours 4 minutes derived 110 VAC 60 Hz line current drops trickle charge System uses MOSFETs comes well-written manual logically de signed well-constructed its intended pur pose battery maintenance thing sets device apart third output can used gyro pack helicopter on-board glow driver single-cell glow plug battery Actually since doesnt care cells being charged nine allowed could hook up two 4cell 1200 mA flight packs series charge Aux lead could hook up two 600 mAh packs series RX cable well take care push discharge button So actually can charge transmitter up four flight packs same time feel need Some people have airplane per transmitter days Push button System discharges fouror five-cell receiver batteries switch-selected 300 500 mA current end point 11 VDC per cell also discharges eight- ninecell transmitter batteries 300 mA rate end point 11 VDC/cell case presents discharge time red LED dis play reverts first overnight charging trickle charging transmitter charging current set 50 mA overnight 10 mA trickle Receiver charg ing current adjustable over range 0 200 mA 10 mA trickle AUX output set 125 mA overnight 25 mA trickle LEDs light show what happening no current flowing dont light process inter rupted such failure house current system comes back line over night rate does 17 hours 4 min utes before reverting trickle charging idea always get full charge no mat ter what happens enough time Yes could get 34 hour 7 minute charge way So worse little overcharging rate batteries can tolerate being undercharged knowing Ive used BMS run some tests found performs advertised Being overnight charger very safe no secret some fast quick chargers market occasionally forget shut off cooks battery packs must watch System have couple weeks before damage will done should System forget drop trickle dont have watch momentary shorts charging cable no damage internal 4 amp fuse protects against major errors Since System plastic case isolated 110 VAC line remote transformer shoek hazard should nil Nice design Battery Management System RK Electronics 304 Fox Run Hudson NH 03051 $18995 &S Mr Howard Decker Reno NV has Tower RC system wants test transmitter bat teries has run fact di ode charging system cant use ESV expanded scale voltmeter asks ques tion comes up often What diode can get rid purpose diode protect against some small bit metal like hex wrench screwdriver point getting charging Continued page 147 February 1991 23 keep rotors turning dead-sticks just would powered flare landing subsequent letter Charles told stunning episode autogyro Having run out fuel still distance runway hed made forced landing cornfield stalks eight feet high broke blade off rudder Charles repaired blades CyA flew several timeswith perfectly nor mal performance Imagine astonishment discover after last flight both blades gone missing blades way never found reconstructed Charless kit plans rather rough formbut enough details serve seasoned scratch-builder Should want take project Ill glad either provide manufacturers address consult about scratch-building Control Line autogyro Being desperately short photos Free Flight Control Line sub jects Ive slanted first column heavily toward RC Im hoping contributions FF CL communities keep some bal ance Way back 1947 Engineering Devel opment Co EDCO Del Mar CA kitted CL autogyro built powered Rocket 46 couldnt get fly creature wouldnt move fast enough achieve line tension much less take off couple guys about generation say theyve either some off ad hA Gas 320 Gas 450 A-B Gas 781 B-C-0 Gas 788 B-C-0 Gas SATELLITE FREE FLIGHT KITS Full Kit $2795 Full Kit $3095 Full Kit $42 95 Pro Kit $4795 Full Kit $67 95 CATALOG Send selt rIctressert stamped envelope address shown Orders SAppIrri Ire rant C 0 U Add 5395 SOpping Handling S uccess personally observed others have Have ever seen fly Id like hear meantime go build modeland en joy D Radio Technique/Myers Continued page 23 jack discharging transmitter battery can have two bad consequences First charge will gone want flywhich no problem look meter before take off Second bit metal can get mighty hot fast can burn start fire field box can go inside transmitter find di ode short Out soldering wire across dont like idea simpler better ap proach buy Deans Charge Connector set ACE R/C Part 19K55 install side transmitter making direct connec tions battery pack inside can charge usual way test through Deans can both through Deans handy want fast charging field instance Deans pins pro tected external shorts Apparently October 1990 column struck few chords readers Ive several letters commenting some points mentioned Gary Patterson Pattersons Hobbies 103 North Jeffers North Platte NE 69101 sent hint noise elimination long-lead large air planes Gary uses two five-cell 800 mAh packs two separate switch harnesses both plugged receiver power airborne system positive lead contains diode two batteries cant charge another re ports good results redundant battery advan tage well Gary uses six servos places elevator servo tail aileron servos wings must have some long leads responding advertisers mention read about ModelAviation IfflUVAT1Y MODEL PRODUCTS INC BRINGS YOU. h sohed try EWU \wnorysiroro/ U U N V UTM BIG 37 oz TUBE SUER STRONG SUPER FLEXABLE SUPER FAST GRIPS TIGHT WHERE OThERS OONT REMOVABLE WITHOUT TRACESUPER ADHESIVE Totally Ctear Simple 500 tOre Part No Mlaiogl - Holds Canopies ANY Motorist tlncloding FisotcCovedogst No Fogging Clean Parts Hoirts FirewAlo Fiberglass - Allows Servos Mounted Adywbore Fdorout hat Totally Nemovabie Vdaoot Causing Osorage PFM, Austlable Hobby Netoiler CaN lesealin Irtedet Frsd5s Toll Free 1000 700-3100 Orderi Dealer loqoitles WantedlAdd $250 silIptIlog & HerlAlingi PPM DoEs ThE WORK OF MANY AD&1Es1W5 Use tAo Thread Locir Netter Slhcooe Odes 10 1/4 tlrrre Better C/Ks Attouhing Canotens Ftastc Fibergiaso Fats PPM USOD ST IlIR PbS - Cot An JoErroon Isee RC Modeler AEAI OS owlet Bettor Totres tMasters teSnIrer 00 Scale Teaott - Bonn Sopor lEditor Scale NC Modelert Frasir Cooteto CalAmnist Flying Models - Greg Nantey tSoooreastem Contotednor Scale BC Modeler Masters Compeotori - Mike Man Super Star helicopter FitotI po Staa 4365Ad. IIbe frm Margate FL 33063Hobby Lobby $995 February 1991 147 ** 4620 CRANDALL-LVILLE R DON INDIANA 47112 e see ion o emo e ro o e irp anes e pro essiona aMLISTED BELOWIn Business since 1973 PRICES SUBJECT TO CHANGE WI THOUT NOTICE IS JUST FEW OF THE MFG WE STOCK HOURS MONDAYTHRUTHURSDAY9AAU 5PM FRIDAY 9AM-2PM A-JUSTOJIGFOXCLOSED SATURDAY & SUNDAY E 812 366-3141 AMBROIDFUTABASONIC-TRONICS FFORD KITS AVAILABLE SHORTLY ARCORUBBERBANDSGOLDBERGSTERLING BRIDIGAS MODEL PRODSULLIVAN 4 TWIN COMANCHE COMANCHE & MORE DAVEYS SYSTEMSHALLCOTOP FLITE $11995 COVERITEHOBBYPOXYVS ENGINES EAA rn mUflI DEVCONHOT STUFFLANIER MILLERStafford DREMELK&BMFGNORTHEAST50 5CAE SF007 PATTEON F AC ENGINOS DYNAFILITESAITOZINGER PROPSMFUFIED bALSA & SPOUCO CONSTOUCTrON SOXTOP dIG MOLDED COWS PANTS WINDSHIELD complete listing etcplease send stamped self-address enve lope DEALERS WANTED F K KITS IGlur N Stickum j BUiIdLlfll & Flyum need help call us arf/fibeiglass t boxRAFTER HOURS CALL WE MIGHT BE HERE fusciage j Y995I THANKS FOR YOUR BUSINESS BILL & JOYCE STAFFORD AIRCOUPE $9995 Obechi Large Sheets Please call 415 462-0672 send SASE 850 Concord Street Pleasanton CA 94566
Edition: Model Aviation - 1991/02
Page Numbers: 22, 23, 147
George M Myers D 7adiomchnique ABSTRACT The Old Flying Aces magazine Bat tery Management System NOSTALGIA August 26 attended Sus sex NJ Airshow met Steve Macjag 530 Allentown Rd Parsippany NJ 07054 re sells aviation memorabilia perused old books bought March 1936 issue Flying Aces magazine happy hours youth spent Flying Aces 15 cents per copy watercolor painting provided cover art article Flying Aces wind tun nel located Casey Jones School Aeronautics article written Av rum Zier fellow employee Grumman Aero nautical Engineering Corporation best known now F-14 Tomcat Top Gun fame also built lunar module took Buzz Al drin moon Casey Jones School Aeronautics still exists across Parkway La Guardia Airport borough Queens fellow Isame William Winter put CHARGING JACK DIODE F jii 4 DEANS CHARGING JACK F article build model China Clip per Frank Zaic wrote piece Indoor flying D Booton R Pickard contributed plans rubber-powered Speed model Howard Hughess racer now hanging Smithsonian plans showed fuselage made hollowing out block balsa short wings HR-I also long wings transcontinental air racing covered balsa sheet included automatic anti-torque aileron control full size plans sticks-andtissue model Rumanian IAR 14 pursuit plane Flying Aces Tractor sliced rib tis sue covered Indoor model Three views given Messerschmitt M29 Vultee Attack Ship Westland Pterodactyl tailless design issue also contained three pieces flying fiction Phineas Pinkham character Joe Archibald exhibited persons similar todays Bart Simpson no doubt same effect contemporary youth war/action piece Donald Keyhoe Kerry Keen aviation detec tive story Arch Whitehouse completed set what catches attention now four ser ious pieces world politics Lt H Latane Lewis II article entitled Can AA guns defend us described great detail equipment procedures used anti-aircraft warfare Russia Power Enigma David Martin detailed what known about Russian Air Force wasnt much Russia clashes Japan C B Mayshark postulated conflict its devel opment never happened because Adolph Hit ler attacked Russia first fourth piece Happy Landings World War RAF combat pilot Lt Arch Whitehouse explained Pan American airways Chins Clipper extended Americas fluence westward important Mr Whitehouse showed extension created need expanded Pacific Navy requiring men lots new equipment Everything discussed became extremely important America just five years later Hawaii Wake land Philippines contained bases China Clipper patriotism magazine open discussion another war would meet test also pages carSOHETIHE PLUG IS LOCATED HERE HAKE CONNECTIONS AT OR NEAR SWITCH INSIDE TRANSHITTER DIODE ND14 SWITCH NO 1 toons jokes contest reports flight instructions vignettes WW ads models engines Fleischmans Yeast Charles Atlas takes breath away realize that just issue did month will grant have Perestroika Sa dam Hussein now TV competes ma/m/N RECEIVER 7WJILIT H44#1 TO SERVOS 1 SCELL BATTERY LIII ODE NO 2 SWITCH NO 2 5CELL BATTERY NO 2 Left Diode installation Gary Pattersons two packs setup eliminates some noise ong-lead arge airpianes Right Deans instailation circumvent internal diode 22 Model Aviation 70 Froshlich Farm Rd Hicksvllie NY 11801 Battery Management System shown charging transmitter receiver pack glow battery Versatile reliable cludes good documentation Flying Aces cover March 1936 used permission Carsten PublicatIons terial wars fiction humor little else men 1930s created Fly ing Aces month radio broadcasts con tend Yet produced magazine sat isfactory material very young Yup pies veterans WW packaged airplane models fact fiction world politics humor afraid give youth day comprehensive picture life though slanted toward aviation AA Wyn President Editor Herb Powell Managing Editor Overall impression heroic Flying Aces magazine name implies sold heroes days Eddie Rickenbacker Charles Lindbergh Amelia Earhart Jackie Cochran skies Beebe brothers stratosphere deepest parts ocean Frank Buck Africa Richard Byrd Arc tic dog-sleds racing Nome Alaska save people diphtheria Di onne quintuplets Joe Louis Jesse Owens Franklin Delano Roosevelt comic strips heroic Smilin Jack Dick Tracy Superman Batman suppose time movie Smilin Jack makes wonder present-day model magazines concentrate much gadgets finishes little life todays heroes writes about have same feelings Id enjoy hearing particularly have some usable ideas deal basic theme education RK Eleetronics offers Battery Management Sys tem $18995 through Hobby Shops mail might ask What should care Well true constant-current see August 90 RT discussion battery charger/cycler what does charge three groups nine cells precise 17 hours 4 minutes derived 110 VAC 60 Hz line current drops trickle charge System uses MOSFETs comes well-written manual logically de signed well-constructed its intended pur pose battery maintenance thing sets device apart third output can used gyro pack helicopter on-board glow driver single-cell glow plug battery Actually since doesnt care cells being charged nine allowed could hook up two 4cell 1200 mA flight packs series charge Aux lead could hook up two 600 mAh packs series RX cable well take care push discharge button So actually can charge transmitter up four flight packs same time feel need Some people have airplane per transmitter days Push button System discharges fouror five-cell receiver batteries switch-selected 300 500 mA current end point 11 VDC per cell also discharges eight- ninecell transmitter batteries 300 mA rate end point 11 VDC/cell case presents discharge time red LED dis play reverts first overnight charging trickle charging transmitter charging current set 50 mA overnight 10 mA trickle Receiver charg ing current adjustable over range 0 200 mA 10 mA trickle AUX output set 125 mA overnight 25 mA trickle LEDs light show what happening no current flowing dont light process inter rupted such failure house current system comes back line over night rate does 17 hours 4 min utes before reverting trickle charging idea always get full charge no mat ter what happens enough time Yes could get 34 hour 7 minute charge way So worse little overcharging rate batteries can tolerate being undercharged knowing Ive used BMS run some tests found performs advertised Being overnight charger very safe no secret some fast quick chargers market occasionally forget shut off cooks battery packs must watch System have couple weeks before damage will done should System forget drop trickle dont have watch momentary shorts charging cable no damage internal 4 amp fuse protects against major errors Since System plastic case isolated 110 VAC line remote transformer shoek hazard should nil Nice design Battery Management System RK Electronics 304 Fox Run Hudson NH 03051 $18995 &S Mr Howard Decker Reno NV has Tower RC system wants test transmitter bat teries has run fact di ode charging system cant use ESV expanded scale voltmeter asks ques tion comes up often What diode can get rid purpose diode protect against some small bit metal like hex wrench screwdriver point getting charging Continued page 147 February 1991 23 keep rotors turning dead-sticks just would powered flare landing subsequent letter Charles told stunning episode autogyro Having run out fuel still distance runway hed made forced landing cornfield stalks eight feet high broke blade off rudder Charles repaired blades CyA flew several timeswith perfectly nor mal performance Imagine astonishment discover after last flight both blades gone missing blades way never found reconstructed Charless kit plans rather rough formbut enough details serve seasoned scratch-builder Should want take project Ill glad either provide manufacturers address consult about scratch-building Control Line autogyro Being desperately short photos Free Flight Control Line sub jects Ive slanted first column heavily toward RC Im hoping contributions FF CL communities keep some bal ance Way back 1947 Engineering Devel opment Co EDCO Del Mar CA kitted CL autogyro built powered Rocket 46 couldnt get fly creature wouldnt move fast enough achieve line tension much less take off couple guys about generation say theyve either some off ad hA Gas 320 Gas 450 A-B Gas 781 B-C-0 Gas 788 B-C-0 Gas SATELLITE FREE FLIGHT KITS Full Kit $2795 Full Kit $3095 Full Kit $42 95 Pro Kit $4795 Full Kit $67 95 CATALOG Send selt rIctressert stamped envelope address shown Orders SAppIrri Ire rant C 0 U Add 5395 SOpping Handling S uccess personally observed others have Have ever seen fly Id like hear meantime go build modeland en joy D Radio Technique/Myers Continued page 23 jack discharging transmitter battery can have two bad consequences First charge will gone want flywhich no problem look meter before take off Second bit metal can get mighty hot fast can burn start fire field box can go inside transmitter find di ode short Out soldering wire across dont like idea simpler better ap proach buy Deans Charge Connector set ACE R/C Part 19K55 install side transmitter making direct connec tions battery pack inside can charge usual way test through Deans can both through Deans handy want fast charging field instance Deans pins pro tected external shorts Apparently October 1990 column struck few chords readers Ive several letters commenting some points mentioned Gary Patterson Pattersons Hobbies 103 North Jeffers North Platte NE 69101 sent hint noise elimination long-lead large air planes Gary uses two five-cell 800 mAh packs two separate switch harnesses both plugged receiver power airborne system positive lead contains diode two batteries cant charge another re ports good results redundant battery advan tage well Gary uses six servos places elevator servo tail aileron servos wings must have some long leads responding advertisers mention read about ModelAviation IfflUVAT1Y MODEL PRODUCTS INC BRINGS YOU. h sohed try EWU \wnorysiroro/ U U N V UTM BIG 37 oz TUBE SUER STRONG SUPER FLEXABLE SUPER FAST GRIPS TIGHT WHERE OThERS OONT REMOVABLE WITHOUT TRACESUPER ADHESIVE Totally Ctear Simple 500 tOre Part No Mlaiogl - Holds Canopies ANY Motorist tlncloding FisotcCovedogst No Fogging Clean Parts Hoirts FirewAlo Fiberglass - Allows Servos Mounted Adywbore Fdorout hat Totally Nemovabie Vdaoot Causing Osorage PFM, Austlable Hobby Netoiler CaN lesealin Irtedet Frsd5s Toll Free 1000 700-3100 Orderi Dealer loqoitles WantedlAdd $250 silIptIlog & HerlAlingi PPM DoEs ThE WORK OF MANY AD&1Es1W5 Use tAo Thread Locir Netter Slhcooe Odes 10 1/4 tlrrre Better C/Ks Attouhing Canotens Ftastc Fibergiaso Fats PPM USOD ST IlIR PbS - Cot An JoErroon Isee RC Modeler AEAI OS owlet Bettor Totres tMasters teSnIrer 00 Scale Teaott - Bonn Sopor lEditor Scale NC Modelert Frasir Cooteto CalAmnist Flying Models - Greg Nantey tSoooreastem Contotednor Scale BC Modeler Masters Compeotori - Mike Man Super Star helicopter FitotI po Staa 4365Ad. 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