Radio Control Electrics Bob Kopski RECEIVER POWER Strange title right Usu ally would expect see words like motor power column Well what Im talking about really like powering receiver some reason Ive getting lot reader mail lately questions about powering receiver off motor battery sol thought Id share some thoughts subject YesI have done past yes have some products allow done Personally Ive discontinued practice because did have some bad experiences judgement savings questionable First bad experience Depending radio equipment connection receiver wiring power system wiring may manifest itself motor noise receiver effect powering receiver motor battery just like using speed control optical coupling total electrical isolation invita tion motor brush noise piped receiver via interconnecting wiring can show up flight unusual glitching and/or apparent range reduction tricky part until try may know fact some radio systems susceptible form electrical noise others Minea variety mixed products accumulated over yearsis So make no hard wiring connections between motor power system radio guidance system Theres bit analogy overheard some SAM Society Antique Modelers folks discussing ignition noise radio-related prob lems Well turns out evidently some radios doand some dontreact adversely ignition sparks Just about same thing folks As questionable savingsits weight savings questionable dollar savings since battery eliminator devices comparable radio batteries weight cost Electrics seven equip ped 250 mAh packs weigh about two ounces totally reliable independent long-lasting radio power absolutely no motor-connected noise concerns course youve seen particular radio particular battery eliminator work just fine should able duplicate system success fully theres last nagging question What about motor battery voltage getting too low dunno answer Leisure Ainptique Readers beginning inquire about pretty-looking nicely named Leisure Amptique responses have Im sorry dont have nor have seen cant comment Well thats changed sorta still dont have nor have seen now have next best thingmaybe better thing turns out just few days ago Keith Shaw Grand Electric renown called chitchat conversation described flying very day Leisure Amptique actoality thats just about talked about seems Keith just flown first time dayand friends several spectators local park fact seems Keiths Amptique just about flies itself per fectly predictable stable docile otherwise casual safe fun Hope got right Normally Im reluctant publish anything have firsthand feel foror least seen cause theres mistake some sort its mineand can fix case however since Keith doesnt make mistakes Ive never seen consider input absolutely solid complete story Keith used geared Leisure system think seven 800 mAh cells 10 x 6 prop plus Jomar 5C5 speed controller reaction youre wondering stop instead just ordered Amptique myself how-to-do-itby Keith Shaw July issue Model Builder has feature article Keith course its Electric Specifically Fuses can cause unexpected headaches fuse doesnt make good low-resistance contact its holder about read column cylindrical historic fuse L Lower can especiallytroublesome Go newerautomotive ATC-type fuse L Above R Crimp-on connectors motorwiring readiiyavaiiable Radio Shack hardware auto supply stores closeup blown ATC-type fuse R clearly showathe gap melted middle fuse elementoccurs too much current flowsthrough fuse Theres good discussion fuses month column 44 Model Aviation i Master power switch nose Bobs new Caliph installed backwards theory uniikeiy event modei strikes soiid object inertia switch iever wiii cause fiy forward prevent further disaster Keith has gone public tells about plans designs fabulous Scale other Electrics weve seen read much about gets details plane size weight power system considerations flight time on course theres ingredient cant pass along thats outright ability build fly beautifully Nevertheless article must reading serious Electric modelers course same magazine another Mitch Polings regular Electric columns too July MB realbargainand necessity Electric Flier patch missed first came out maybe did too Its Electric Flier patch shown photos available AMA Supply Service mere buck Supply Service catalog several-page magazine-size booklet AMA member gets after joining current year contains much just patch Knowing Electric modelers proud leading hobby future also know youd interested patch So dust off catalog turn page three see what Im talking about might check out rest catalog too send patchnoting above no Gas Flier patch per se fuse problem Two popular RC Electrics columns ever have ones May June 1985 described simple charging system large variety battery packs including large cell-count Its now around two years since appeared readers have written over period expressing satisfaction columns cluded among letters own personal experience since time have some problems/questions related no reason fuseblowing Radio Shack voltage inverters months photos shows fuses holders glass cylindricaltype fuse fuse-holder type comes Radio Shack product upon columns basedthe so-named Voltage Inverter good name turns out sometimes fuse holder contacts make good electrical connection metal fuse ends long round glass fuses good electrical connection low-resistance con nection case fuse fuse holder can get quite hot because high-resistance connection Ordinarily such heat would anything annoyance However fuses thing ie blow get too hot Thus turns out modelers experiencing fuse-blowing no reason because fuse gets hot wrong reason Getting further fuses work principle enough current flows through internal current-carrying metal con ductor heats current depending element design melts blows thereby openContinued page 135 fine Electric Power Fiyer patch tor ward-thinking AMA its years AMA Suppiy Service catalog Eiectric major part modeidoms proud future September 1987 45 FOUR CYCLE ACCESSORIES Form cycuFOUR CYCLE IN-COWL MUFFLERS ENGINE MOUNTSJTEAS ENTA AS AC UPINV EMGINE.........2000 CANT ALUMINUM ALLOy17-CAM ENTA AS AC UPIIMWSIOE ENGINE2000 IT-ENS ENTA 60-60 AC UPIINV ENGINE2000 GROANS SO VUNOOT LIME SOUSE MAP MUNSON INC ENSJT ENS ENTA 00-120 AC UPIINV ENGINE 00 17-ENS ENTA 50-120 AC UP/INN/SlOE ENGINE 2700 DRILLED AND TAPPED FOR17-ENS ENTA R 120 PC UP/INN ENGINE2000 SOIGOT OLSE0IEMES17-EON ENTA 60-NO AC IIPaINVISIDE ENGINE 2700 UNMELLMM P05 21-AD60017-ENS EMMA 6 120 PC UP/IMV/SIOE ENG2000 HP VT 2100017-ASS lIP NT AS UP/INN ENGINE2000 ENYA 35-AO AC000iT-ASS NP NT AS UP/INN/SlOE ENGINE2000 SAITO PA 30CooIT-MAN MAX PS AD UP/INN ENGINE 2000 OS MAX AC PCcooJTNAS MAX PS AG UP/INY/SIOC ENGIME2000 OS MAX ADS00047-OlE MAX PS NI UP/IMY ENGINE2000 OS MAX ASSCoo17010 MAX PS SI UP/INN/SIDE ENGINE2000 SAITO PA AC-AScooJIMOS MAX PS SO UP/IMV ENGINE2700 ENYA AG AC000JTNMS MAX P040 UP/INWSIOE ENGINE2700 WISRA TA-AC000J7M28 MAX PS 120 UP/INN ENGINE2700 HP VT AS2CCJTM2S MAX PS 120 UP/INV/SIOE ENGINE2700 UNONILLEM POE 5040 00iTOAS SAITO PA AS UP/INN ENGINE2000 OS MAX PS SI300iT-SAG SAIlO PA AS UP/INN/SIDE ENGINE2000 OS MAX PS 50-75-50300iT-SOS SAITO PA SE UP/INN ENGINE2000 ENVA SC-SC-S0-12D ACsocJ~S60 SAITO PA OS UP/INV/SIOE ENGINE2000 UMONILLEM POE 12060017525 SAITO PA 120 UP/INN ENGINE2700 ENVA 5 120 ftC200017025 SAITO PA 120 UPIINN/SIOE ENGINE2700 OS MAX PS 1201600 OS MAX 12001600 POWER STICK SAITO PA 120I&DO SAPS TIANO 25001800 ENGINE TEST STANDS CANT ALUMINUMa obaf-atfti.af C lokal ofick REGULAR I/2A 60 Sf120 GLUM 1/ZA 7023 S2500 nat avoIs yos hobby shop Ef5 OIRCT aCcSfedAdd5OforL1OOf0rCOand6 kywludof tnsr* Clock 002 V Mc COO IN SdmtforCmdsnfFREE CA TALOG p795 $795 DISTRIBUTED BY $425AVAILABLE AT AMERICAS$425 FINEST HOBBY SHOPS s SMUlTIHI ZIFDUDW*ZRD 7550 SOT 00511 Road Alosoadero CA 92422 1717 youre Youre Not. OPS GLOW PLUGS Are Available Local Hobby Shop 5sPeoPIeof Ceamftetd1m /mc4 9#cc PO Box26247 Orleans LA 70186 0-535-2568 grams Chuck Anderson wrote tell us has upgraded airfoil plot program added Macintosh list usable computers new program will plot NACA four- fivedigit Quabeck airfoil equations thus eliminating need enter coordinates airfoils Additional airfoils can plotted having rerun program scratch Owners earlier versions can upgrade new version returning old disk $5 Owners ear lier CM versions can upgrade C128 $10 get full details its best contact Chuck PO Box 305 Tullahoma TN 37388 phone 615 455-5788 Eddie Dumas announced Sailplane De sign Program now available IBM PCs compatible machines program written MS-DOS BASIC 20 requires doubledensity floppy disk drive optional Epson printer new program retains features original CM version plus enhancements 30 version CM program include updated Sailplane data files seven airfoil data files price $20 directly Eddie 3220 Boomerang Lane Knoxville TN 37931 phone 615 690-3180 Chuck says very impressed Eddies program Because reading column assume have interest model Soaring somewhere between passing passionate can decide rank yourself scale ten Wherever place yourself feel obligated bring up fit respect Great Scheme Things Model Aviation sport aviation big ones well mod els governed body based Paris called Federation Aeronautique Internationale FAI FAI has delegated supervision sport avi ation matters United States National Aeronautic Association NAAnothing NASA governmental agency NAA has turn delegated model aviation mat ters fine association American modelers brings magazine namely Academy Model Aeronautics AMA Now back Paris FAI has committee charged overseeing modeling activi ties around world Committee Interna tionale Aviation Modelisme ClAM ClAM establishes rules various types inter national model competition through sub committees Pattern F3A Soaring F3B Electrics F3E etc Youre probably thinking organiza tion swell what does have Lets jump back Washington accurately Reston VA home AMA officers administrators AMA reason same FAI NAA delegate certain responsibilities helping run various phases aeromodeling people closest knowledgeable about particular type model flying ie guys gals actually participate delegatedand dedicatedfolks known Special Interest Groups SIG SIG Pattern Control Line Pylon Racing Electric Free Flight yes Soaring has buildup let know have Soaring SIG its name National Soaring Society NSS Lets look what NSS about beginning Eastern Soaring League farsighted Sailplaners knew should nationwide association speak voice behalf great hobby/sport So NSS formed 1974 However dont believe anyone would claim NSS has great success getting signif icant percentage Sailplaners join probably two basic reasons First Sailplane enthusiasts tend independent thinkers prefer doing own way Second important Sailplaners probably havent seen need Soaring SIG feelings understandable recall what role SIG believe RC Soaring deserves prosper grow think youll agree NSS place invest some support may have heard some fliers say about NSS dont anything Im tell Us Yes talking about for-profit com pany strictly volunteer organiza tion Us rated interest Soaring anything higher 2 few paragraphs back Sailplaners need pitch hr help some thing can advise AMA Contest Board Soaring rules can have input ClAM F3B meetings rule-makings can run Nats Soaring event can assist National F3B Team can develop new programs contests activities lots things can get together critical mass Some may say cant afford dues honest consideration dues cheap compared investment us have hobby dues give excellent bimonthly journal Sailplane Some say dont agree what doing need hear opinions know what want Next month Ill print names addresses NSS District VPs Theyll very happy hear meantime please look NSS ad magazine Send appli cation Byron Blakeslee 3134 Winnebago Dr Se dalia CO 8035 RC Aerobatics/Van Putte Continued page 43 competition weekend fliers want try change pace details new event advance 1988-89 AMA rule book contact Glenn Gressens 10224 Kenlee Dr Baton Rouge LA 70815 Im sure hed appreciate SASE along request Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 45 ing circuit interrupt current flow caused fuse activate first place Thus fuse already hotsuch being heated current flowing through faulty contacts fuse holderthe actual circuit current needed cause fuse blow less fuse rating result fuses activat ing no good reason Given preceding have fuses seem wrongly activating maybe youve looking problem isnt check see fuse holder fuse normally hot touch Ive some could touchContinued page 136 September 1987 135 WHEN YOU FORGET\OUR UNITS REMEMBER . RC System NiCd Batteries chargers need Only package Fits 4SV Rx 96V Tx packsPlus $5 S&HFor Cycier-Charger$17995 Gelled Cell available write call Trickier $2495Regular Model$3995 ForPlus $2 S&HFor field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V Heavy Duty Model .$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V .ij CaRa ProductssAse fur ci ton ox 221 605-987-5924Dealer inquiries irMledCanton SO 57013 suggest simply get rid problem follows Cut wires going fuse holder right holder throw away strip two wire ends about inch install insulated female crimp-on terminals both pictured install ATC-type auto fuse appropriate rating fuses quite bit smaller cylindrical ones holders have much better contactand thus less associated wrongful heating premature blowing Also should connections feel bit too loose its very easy squeeze female terminals bit pliers no fuse place tighten up mechan icaland thereby improve electricalcon nection Arming switches switches motors power system sorta like main switch box house turn whole works Off effect make system ready use thatwhateverthen makes system operate free some specifics Systems have electronic speed controls apply retard power flow motor full Off full via radio throttle channel effect arming switch such motor control system would always ready go always-armed condition good practice fact can dangerous practice cause motor can glitch whenever radio systems On/Off switch moved Since modelers just naturally often check out radio operation its anunnecessary andrisky thing have some means deactivating motor system during time Thus simple On/Off arming switcha simple toggle switch will dois advisable part such power system installation planes outfitted speed controls also equipped toggle-type arm ing switches switches installed positive battery lead right after fuse general either battery lead may usedI just have established positive-lead convention myself case fuse first arming switch next before battery wire goes anywhere else motor system installation addition systems speed controls have used arming switches electronic radio activated On/Off switches very sante reasons given above place dont personally use such master switch systems servo-driven On/Off switches Its true radio-activated such mechanical activation generally much slower-responding far less likely glitch time radio system turned off assure arranging linkage switch nearly full servo rotation needed trip switch course nothing wrong using arming switches installa tions tooits really just matter relative need and/or desirability Obviously Ive deemed servo-driven mechanical switchbe toggle switch microswitchto quite adequate purposes Electronic switches just mentioned preceding paragraphs thought Id use opening mention some related problems First theres often routine in-flight motor glitch ing motors turn off no apparent reason systems electronic switches think case because such switches really electronically driven relays very quick-acting thus very responsive slightest radio signal disturbance leads instances some type intermittent radio interference present servos fail give noticeable reactionwhile sensitive motor control does react Such uncalled-for electronic switch activation can minimal occurrence some radios whereas can frequent others know case its very unnerving would think would unnerving participating Electric competition rules feature timed motor run Another problem Ive experienced elec tronic switches contact sticking situation after turning motor cant turned Off Did say unnerving above So far can tell relay sticking due closing contacts microwelding themselves together probably happens mostly larger systems cells and/or greater motor currents So far Ive able solve either problem So least present Ive given up electronic switches Im through pursuing matter bench should successful youll see right MAs RC Electrics column reason discussing now just wont feel alone youre experiencing unnerving malfunctions Just inlate word Electric Model Fliers Chicago announcing Electric Fly-h Saturday Sunday August 15 16 Melas Park Northwest Chicago Prizes sorts categories raffle Contact CD Tom Kallevang 1701 Cottonwood Lane Apt 2K Mt Prospect IL 60056 Tell em Bob MA sent Now have made far through columnI aint done witcha yet Check index very issue really hot article yours truly modify nifty Astro DC-DC Super Charger make nifty Please send comment question SASE please Bob Kopsk 25 West End Dr Lanadale PA 19446 Next month more power systems galore Caliph similar planes SAFE FLYING IS NO ACCIDENT 136 Model Aviation hate install hinges Try Easy Hingese See Difference single slot few drops C/A glue its done No gouging pinning hinge pins worry about Incredibly strong Virtually indestructible 24 hinges 295 e e4ri ea 6ncc P0 Box 1743 Marcos CA 92069 FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid US via UPS Cal add 6/tax SMALL BOX 114 lb rubber $450 size Orders up $1600 114 lb rubber mdse. add $150 UPS Over $15 add 10% CROCKET HOOKS NOW MADE BY FAI SEND $1 FAI Model Supply FOR CATALOG P0 BOX 3957 Torrance CA 90610 I, 5tock Immediate Shipment New ZENOAN 6237 Cu In $23995 New Oude 40 cm i3-beeing wih nprin9 netei$14995 Reg Ouude40 95 erisehelie fiywheei 90 Ree Ocud, de Pew Aewbiy Only painn $6490 OUADRA e ZENOAH REPAIR 01500 pius enrsl Jim Menne ERCOUPEPLANS 0239R SEMI-KiT sense Jim Mesue TOMAHAWKPLANS 02395 SEMI-KiT $9690 Jim Menue J3 KIflEPIPLANS $2995 FIJLL-KIT 013996 WE ROSINHOOD U KIT$5995 isene 0301 WE ROSINHOOD 99 KIT$111995 imee $9ei MALONEY iee 99ZENOAH 0-35 95 FLOATS 4e-114 uceiecuen $2195 aumpinre kit $4795 10 WWi WHEELS 0 P/K Spring Surer02495 PLANS SUPER STOARMAN 14iOudIreyl$2995 13 TAYLORCRAFT 13 cUe Neii$2995 vOLKSPLANE 1/3 Chicken Churiiel02395 Serve H-356 42 01295 Wuid SlO Ia ig wedeis$3495 Preen ii GER TOP FLiTE DYNATHRUST2S% OFF us Ouadr FUEL TANKS16, 069932u 5795 FIeERGALSS ARROW SHAFTS 519 u32 lung 605 $1195 255, 5ev, Add$2apo u IM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706
Edition: Model Aviation - 1987/09
Page Numbers: 44, 45, 135, 136
Radio Control Electrics Bob Kopski RECEIVER POWER Strange title right Usu ally would expect see words like motor power column Well what Im talking about really like powering receiver some reason Ive getting lot reader mail lately questions about powering receiver off motor battery sol thought Id share some thoughts subject YesI have done past yes have some products allow done Personally Ive discontinued practice because did have some bad experiences judgement savings questionable First bad experience Depending radio equipment connection receiver wiring power system wiring may manifest itself motor noise receiver effect powering receiver motor battery just like using speed control optical coupling total electrical isolation invita tion motor brush noise piped receiver via interconnecting wiring can show up flight unusual glitching and/or apparent range reduction tricky part until try may know fact some radio systems susceptible form electrical noise others Minea variety mixed products accumulated over yearsis So make no hard wiring connections between motor power system radio guidance system Theres bit analogy overheard some SAM Society Antique Modelers folks discussing ignition noise radio-related prob lems Well turns out evidently some radios doand some dontreact adversely ignition sparks Just about same thing folks As questionable savingsits weight savings questionable dollar savings since battery eliminator devices comparable radio batteries weight cost Electrics seven equip ped 250 mAh packs weigh about two ounces totally reliable independent long-lasting radio power absolutely no motor-connected noise concerns course youve seen particular radio particular battery eliminator work just fine should able duplicate system success fully theres last nagging question What about motor battery voltage getting too low dunno answer Leisure Ainptique Readers beginning inquire about pretty-looking nicely named Leisure Amptique responses have Im sorry dont have nor have seen cant comment Well thats changed sorta still dont have nor have seen now have next best thingmaybe better thing turns out just few days ago Keith Shaw Grand Electric renown called chitchat conversation described flying very day Leisure Amptique actoality thats just about talked about seems Keith just flown first time dayand friends several spectators local park fact seems Keiths Amptique just about flies itself per fectly predictable stable docile otherwise casual safe fun Hope got right Normally Im reluctant publish anything have firsthand feel foror least seen cause theres mistake some sort its mineand can fix case however since Keith doesnt make mistakes Ive never seen consider input absolutely solid complete story Keith used geared Leisure system think seven 800 mAh cells 10 x 6 prop plus Jomar 5C5 speed controller reaction youre wondering stop instead just ordered Amptique myself how-to-do-itby Keith Shaw July issue Model Builder has feature article Keith course its Electric Specifically Fuses can cause unexpected headaches fuse doesnt make good low-resistance contact its holder about read column cylindrical historic fuse L Lower can especiallytroublesome Go newerautomotive ATC-type fuse L Above R Crimp-on connectors motorwiring readiiyavaiiable Radio Shack hardware auto supply stores closeup blown ATC-type fuse R clearly showathe gap melted middle fuse elementoccurs too much current flowsthrough fuse Theres good discussion fuses month column 44 Model Aviation i Master power switch nose Bobs new Caliph installed backwards theory uniikeiy event modei strikes soiid object inertia switch iever wiii cause fiy forward prevent further disaster Keith has gone public tells about plans designs fabulous Scale other Electrics weve seen read much about gets details plane size weight power system considerations flight time on course theres ingredient cant pass along thats outright ability build fly beautifully Nevertheless article must reading serious Electric modelers course same magazine another Mitch Polings regular Electric columns too July MB realbargainand necessity Electric Flier patch missed first came out maybe did too Its Electric Flier patch shown photos available AMA Supply Service mere buck Supply Service catalog several-page magazine-size booklet AMA member gets after joining current year contains much just patch Knowing Electric modelers proud leading hobby future also know youd interested patch So dust off catalog turn page three see what Im talking about might check out rest catalog too send patchnoting above no Gas Flier patch per se fuse problem Two popular RC Electrics columns ever have ones May June 1985 described simple charging system large variety battery packs including large cell-count Its now around two years since appeared readers have written over period expressing satisfaction columns cluded among letters own personal experience since time have some problems/questions related no reason fuseblowing Radio Shack voltage inverters months photos shows fuses holders glass cylindricaltype fuse fuse-holder type comes Radio Shack product upon columns basedthe so-named Voltage Inverter good name turns out sometimes fuse holder contacts make good electrical connection metal fuse ends long round glass fuses good electrical connection low-resistance con nection case fuse fuse holder can get quite hot because high-resistance connection Ordinarily such heat would anything annoyance However fuses thing ie blow get too hot Thus turns out modelers experiencing fuse-blowing no reason because fuse gets hot wrong reason Getting further fuses work principle enough current flows through internal current-carrying metal con ductor heats current depending element design melts blows thereby openContinued page 135 fine Electric Power Fiyer patch tor ward-thinking AMA its years AMA Suppiy Service catalog Eiectric major part modeidoms proud future September 1987 45 FOUR CYCLE ACCESSORIES Form cycuFOUR CYCLE IN-COWL MUFFLERS ENGINE MOUNTSJTEAS ENTA AS AC UPINV EMGINE.........2000 CANT ALUMINUM ALLOy17-CAM ENTA AS AC UPIIMWSIOE ENGINE2000 IT-ENS ENTA 60-60 AC UPIINV ENGINE2000 GROANS SO VUNOOT LIME SOUSE MAP MUNSON INC ENSJT ENS ENTA 00-120 AC UPIINV ENGINE 00 17-ENS ENTA 50-120 AC UP/INN/SlOE ENGINE 2700 DRILLED AND TAPPED FOR17-ENS ENTA R 120 PC UP/INN ENGINE2000 SOIGOT OLSE0IEMES17-EON ENTA 60-NO AC IIPaINVISIDE ENGINE 2700 UNMELLMM P05 21-AD60017-ENS EMMA 6 120 PC UP/IMV/SIOE ENG2000 HP VT 2100017-ASS lIP NT AS UP/INN ENGINE2000 ENYA 35-AO AC000iT-ASS NP NT AS UP/INN/SlOE ENGINE2000 SAITO PA 30CooIT-MAN MAX PS AD UP/INN ENGINE 2000 OS MAX AC PCcooJTNAS MAX PS AG UP/INY/SIOC ENGIME2000 OS MAX ADS00047-OlE MAX PS NI UP/IMY ENGINE2000 OS MAX ASSCoo17010 MAX PS SI UP/INN/SIDE ENGINE2000 SAITO PA AC-AScooJIMOS MAX PS SO UP/IMV ENGINE2700 ENYA AG AC000JTNMS MAX P040 UP/INWSIOE ENGINE2700 WISRA TA-AC000J7M28 MAX PS 120 UP/INN ENGINE2700 HP VT AS2CCJTM2S MAX PS 120 UP/INV/SIOE ENGINE2700 UNONILLEM POE 5040 00iTOAS SAITO PA AS UP/INN ENGINE2000 OS MAX PS SI300iT-SAG SAIlO PA AS UP/INN/SIDE ENGINE2000 OS MAX PS 50-75-50300iT-SOS SAITO PA SE UP/INN ENGINE2000 ENVA SC-SC-S0-12D ACsocJ~S60 SAITO PA OS UP/INV/SIOE ENGINE2000 UMONILLEM POE 12060017525 SAITO PA 120 UP/INN ENGINE2700 ENVA 5 120 ftC200017025 SAITO PA 120 UPIINN/SIOE ENGINE2700 OS MAX PS 1201600 OS MAX 12001600 POWER STICK SAITO PA 120I&DO SAPS TIANO 25001800 ENGINE TEST STANDS CANT ALUMINUMa obaf-atfti.af C lokal ofick REGULAR I/2A 60 Sf120 GLUM 1/ZA 7023 S2500 nat avoIs yos hobby shop Ef5 OIRCT aCcSfedAdd5OforL1OOf0rCOand6 kywludof tnsr* Clock 002 V Mc COO IN SdmtforCmdsnfFREE CA TALOG p795 $795 DISTRIBUTED BY $425AVAILABLE AT AMERICAS$425 FINEST HOBBY SHOPS s SMUlTIHI ZIFDUDW*ZRD 7550 SOT 00511 Road Alosoadero CA 92422 1717 youre Youre Not. OPS GLOW PLUGS Are Available Local Hobby Shop 5sPeoPIeof Ceamftetd1m /mc4 9#cc PO Box26247 Orleans LA 70186 0-535-2568 grams Chuck Anderson wrote tell us has upgraded airfoil plot program added Macintosh list usable computers new program will plot NACA four- fivedigit Quabeck airfoil equations thus eliminating need enter coordinates airfoils Additional airfoils can plotted having rerun program scratch Owners earlier versions can upgrade new version returning old disk $5 Owners ear lier CM versions can upgrade C128 $10 get full details its best contact Chuck PO Box 305 Tullahoma TN 37388 phone 615 455-5788 Eddie Dumas announced Sailplane De sign Program now available IBM PCs compatible machines program written MS-DOS BASIC 20 requires doubledensity floppy disk drive optional Epson printer new program retains features original CM version plus enhancements 30 version CM program include updated Sailplane data files seven airfoil data files price $20 directly Eddie 3220 Boomerang Lane Knoxville TN 37931 phone 615 690-3180 Chuck says very impressed Eddies program Because reading column assume have interest model Soaring somewhere between passing passionate can decide rank yourself scale ten Wherever place yourself feel obligated bring up fit respect Great Scheme Things Model Aviation sport aviation big ones well mod els governed body based Paris called Federation Aeronautique Internationale FAI FAI has delegated supervision sport avi ation matters United States National Aeronautic Association NAAnothing NASA governmental agency NAA has turn delegated model aviation mat ters fine association American modelers brings magazine namely Academy Model Aeronautics AMA Now back Paris FAI has committee charged overseeing modeling activi ties around world Committee Interna tionale Aviation Modelisme ClAM ClAM establishes rules various types inter national model competition through sub committees Pattern F3A Soaring F3B Electrics F3E etc Youre probably thinking organiza tion swell what does have Lets jump back Washington accurately Reston VA home AMA officers administrators AMA reason same FAI NAA delegate certain responsibilities helping run various phases aeromodeling people closest knowledgeable about particular type model flying ie guys gals actually participate delegatedand dedicatedfolks known Special Interest Groups SIG SIG Pattern Control Line Pylon Racing Electric Free Flight yes Soaring has buildup let know have Soaring SIG its name National Soaring Society NSS Lets look what NSS about beginning Eastern Soaring League farsighted Sailplaners knew should nationwide association speak voice behalf great hobby/sport So NSS formed 1974 However dont believe anyone would claim NSS has great success getting signif icant percentage Sailplaners join probably two basic reasons First Sailplane enthusiasts tend independent thinkers prefer doing own way Second important Sailplaners probably havent seen need Soaring SIG feelings understandable recall what role SIG believe RC Soaring deserves prosper grow think youll agree NSS place invest some support may have heard some fliers say about NSS dont anything Im tell Us Yes talking about for-profit com pany strictly volunteer organiza tion Us rated interest Soaring anything higher 2 few paragraphs back Sailplaners need pitch hr help some thing can advise AMA Contest Board Soaring rules can have input ClAM F3B meetings rule-makings can run Nats Soaring event can assist National F3B Team can develop new programs contests activities lots things can get together critical mass Some may say cant afford dues honest consideration dues cheap compared investment us have hobby dues give excellent bimonthly journal Sailplane Some say dont agree what doing need hear opinions know what want Next month Ill print names addresses NSS District VPs Theyll very happy hear meantime please look NSS ad magazine Send appli cation Byron Blakeslee 3134 Winnebago Dr Se dalia CO 8035 RC Aerobatics/Van Putte Continued page 43 competition weekend fliers want try change pace details new event advance 1988-89 AMA rule book contact Glenn Gressens 10224 Kenlee Dr Baton Rouge LA 70815 Im sure hed appreciate SASE along request Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 45 ing circuit interrupt current flow caused fuse activate first place Thus fuse already hotsuch being heated current flowing through faulty contacts fuse holderthe actual circuit current needed cause fuse blow less fuse rating result fuses activat ing no good reason Given preceding have fuses seem wrongly activating maybe youve looking problem isnt check see fuse holder fuse normally hot touch Ive some could touchContinued page 136 September 1987 135 WHEN YOU FORGET\OUR UNITS REMEMBER . RC System NiCd Batteries chargers need Only package Fits 4SV Rx 96V Tx packsPlus $5 S&HFor Cycier-Charger$17995 Gelled Cell available write call Trickier $2495Regular Model$3995 ForPlus $2 S&HFor field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V Heavy Duty Model .$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V .ij CaRa ProductssAse fur ci ton ox 221 605-987-5924Dealer inquiries irMledCanton SO 57013 suggest simply get rid problem follows Cut wires going fuse holder right holder throw away strip two wire ends about inch install insulated female crimp-on terminals both pictured install ATC-type auto fuse appropriate rating fuses quite bit smaller cylindrical ones holders have much better contactand thus less associated wrongful heating premature blowing Also should connections feel bit too loose its very easy squeeze female terminals bit pliers no fuse place tighten up mechan icaland thereby improve electricalcon nection Arming switches switches motors power system sorta like main switch box house turn whole works Off effect make system ready use thatwhateverthen makes system operate free some specifics Systems have electronic speed controls apply retard power flow motor full Off full via radio throttle channel effect arming switch such motor control system would always ready go always-armed condition good practice fact can dangerous practice cause motor can glitch whenever radio systems On/Off switch moved Since modelers just naturally often check out radio operation its anunnecessary andrisky thing have some means deactivating motor system during time Thus simple On/Off arming switcha simple toggle switch will dois advisable part such power system installation planes outfitted speed controls also equipped toggle-type arm ing switches switches installed positive battery lead right after fuse general either battery lead may usedI just have established positive-lead convention myself case fuse first arming switch next before battery wire goes anywhere else motor system installation addition systems speed controls have used arming switches electronic radio activated On/Off switches very sante reasons given above place dont personally use such master switch systems servo-driven On/Off switches Its true radio-activated such mechanical activation generally much slower-responding far less likely glitch time radio system turned off assure arranging linkage switch nearly full servo rotation needed trip switch course nothing wrong using arming switches installa tions tooits really just matter relative need and/or desirability Obviously Ive deemed servo-driven mechanical switchbe toggle switch microswitchto quite adequate purposes Electronic switches just mentioned preceding paragraphs thought Id use opening mention some related problems First theres often routine in-flight motor glitch ing motors turn off no apparent reason systems electronic switches think case because such switches really electronically driven relays very quick-acting thus very responsive slightest radio signal disturbance leads instances some type intermittent radio interference present servos fail give noticeable reactionwhile sensitive motor control does react Such uncalled-for electronic switch activation can minimal occurrence some radios whereas can frequent others know case its very unnerving would think would unnerving participating Electric competition rules feature timed motor run Another problem Ive experienced elec tronic switches contact sticking situation after turning motor cant turned Off Did say unnerving above So far can tell relay sticking due closing contacts microwelding themselves together probably happens mostly larger systems cells and/or greater motor currents So far Ive able solve either problem So least present Ive given up electronic switches Im through pursuing matter bench should successful youll see right MAs RC Electrics column reason discussing now just wont feel alone youre experiencing unnerving malfunctions Just inlate word Electric Model Fliers Chicago announcing Electric Fly-h Saturday Sunday August 15 16 Melas Park Northwest Chicago Prizes sorts categories raffle Contact CD Tom Kallevang 1701 Cottonwood Lane Apt 2K Mt Prospect IL 60056 Tell em Bob MA sent Now have made far through columnI aint done witcha yet Check index very issue really hot article yours truly modify nifty Astro DC-DC Super Charger make nifty Please send comment question SASE please Bob Kopsk 25 West End Dr Lanadale PA 19446 Next month more power systems galore Caliph similar planes SAFE FLYING IS NO ACCIDENT 136 Model Aviation hate install hinges Try Easy Hingese See Difference single slot few drops C/A glue its done No gouging pinning hinge pins worry about Incredibly strong Virtually indestructible 24 hinges 295 e e4ri ea 6ncc P0 Box 1743 Marcos CA 92069 FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid US via UPS Cal add 6/tax SMALL BOX 114 lb rubber $450 size Orders up $1600 114 lb rubber mdse. add $150 UPS Over $15 add 10% CROCKET HOOKS NOW MADE BY FAI SEND $1 FAI Model Supply FOR CATALOG P0 BOX 3957 Torrance CA 90610 I, 5tock Immediate Shipment New ZENOAN 6237 Cu In $23995 New Oude 40 cm i3-beeing wih nprin9 netei$14995 Reg Ouude40 95 erisehelie fiywheei 90 Ree Ocud, de Pew Aewbiy Only painn $6490 OUADRA e ZENOAH REPAIR 01500 pius enrsl Jim Menne ERCOUPEPLANS 0239R SEMI-KiT sense Jim Mesue TOMAHAWKPLANS 02395 SEMI-KiT $9690 Jim Menue J3 KIflEPIPLANS $2995 FIJLL-KIT 013996 WE ROSINHOOD U KIT$5995 isene 0301 WE ROSINHOOD 99 KIT$111995 imee $9ei MALONEY iee 99ZENOAH 0-35 95 FLOATS 4e-114 uceiecuen $2195 aumpinre kit $4795 10 WWi WHEELS 0 P/K Spring Surer02495 PLANS SUPER STOARMAN 14iOudIreyl$2995 13 TAYLORCRAFT 13 cUe Neii$2995 vOLKSPLANE 1/3 Chicken Churiiel02395 Serve H-356 42 01295 Wuid SlO Ia ig wedeis$3495 Preen ii GER TOP FLiTE DYNATHRUST2S% OFF us Ouadr FUEL TANKS16, 069932u 5795 FIeERGALSS ARROW SHAFTS 519 u32 lung 605 $1195 255, 5ev, Add$2apo u IM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706
Edition: Model Aviation - 1987/09
Page Numbers: 44, 45, 135, 136
Radio Control Electrics Bob Kopski RECEIVER POWER Strange title right Usu ally would expect see words like motor power column Well what Im talking about really like powering receiver some reason Ive getting lot reader mail lately questions about powering receiver off motor battery sol thought Id share some thoughts subject YesI have done past yes have some products allow done Personally Ive discontinued practice because did have some bad experiences judgement savings questionable First bad experience Depending radio equipment connection receiver wiring power system wiring may manifest itself motor noise receiver effect powering receiver motor battery just like using speed control optical coupling total electrical isolation invita tion motor brush noise piped receiver via interconnecting wiring can show up flight unusual glitching and/or apparent range reduction tricky part until try may know fact some radio systems susceptible form electrical noise others Minea variety mixed products accumulated over yearsis So make no hard wiring connections between motor power system radio guidance system Theres bit analogy overheard some SAM Society Antique Modelers folks discussing ignition noise radio-related prob lems Well turns out evidently some radios doand some dontreact adversely ignition sparks Just about same thing folks As questionable savingsits weight savings questionable dollar savings since battery eliminator devices comparable radio batteries weight cost Electrics seven equip ped 250 mAh packs weigh about two ounces totally reliable independent long-lasting radio power absolutely no motor-connected noise concerns course youve seen particular radio particular battery eliminator work just fine should able duplicate system success fully theres last nagging question What about motor battery voltage getting too low dunno answer Leisure Ainptique Readers beginning inquire about pretty-looking nicely named Leisure Amptique responses have Im sorry dont have nor have seen cant comment Well thats changed sorta still dont have nor have seen now have next best thingmaybe better thing turns out just few days ago Keith Shaw Grand Electric renown called chitchat conversation described flying very day Leisure Amptique actoality thats just about talked about seems Keith just flown first time dayand friends several spectators local park fact seems Keiths Amptique just about flies itself per fectly predictable stable docile otherwise casual safe fun Hope got right Normally Im reluctant publish anything have firsthand feel foror least seen cause theres mistake some sort its mineand can fix case however since Keith doesnt make mistakes Ive never seen consider input absolutely solid complete story Keith used geared Leisure system think seven 800 mAh cells 10 x 6 prop plus Jomar 5C5 speed controller reaction youre wondering stop instead just ordered Amptique myself how-to-do-itby Keith Shaw July issue Model Builder has feature article Keith course its Electric Specifically Fuses can cause unexpected headaches fuse doesnt make good low-resistance contact its holder about read column cylindrical historic fuse L Lower can especiallytroublesome Go newerautomotive ATC-type fuse L Above R Crimp-on connectors motorwiring readiiyavaiiable Radio Shack hardware auto supply stores closeup blown ATC-type fuse R clearly showathe gap melted middle fuse elementoccurs too much current flowsthrough fuse Theres good discussion fuses month column 44 Model Aviation i Master power switch nose Bobs new Caliph installed backwards theory uniikeiy event modei strikes soiid object inertia switch iever wiii cause fiy forward prevent further disaster Keith has gone public tells about plans designs fabulous Scale other Electrics weve seen read much about gets details plane size weight power system considerations flight time on course theres ingredient cant pass along thats outright ability build fly beautifully Nevertheless article must reading serious Electric modelers course same magazine another Mitch Polings regular Electric columns too July MB realbargainand necessity Electric Flier patch missed first came out maybe did too Its Electric Flier patch shown photos available AMA Supply Service mere buck Supply Service catalog several-page magazine-size booklet AMA member gets after joining current year contains much just patch Knowing Electric modelers proud leading hobby future also know youd interested patch So dust off catalog turn page three see what Im talking about might check out rest catalog too send patchnoting above no Gas Flier patch per se fuse problem Two popular RC Electrics columns ever have ones May June 1985 described simple charging system large variety battery packs including large cell-count Its now around two years since appeared readers have written over period expressing satisfaction columns cluded among letters own personal experience since time have some problems/questions related no reason fuseblowing Radio Shack voltage inverters months photos shows fuses holders glass cylindricaltype fuse fuse-holder type comes Radio Shack product upon columns basedthe so-named Voltage Inverter good name turns out sometimes fuse holder contacts make good electrical connection metal fuse ends long round glass fuses good electrical connection low-resistance con nection case fuse fuse holder can get quite hot because high-resistance connection Ordinarily such heat would anything annoyance However fuses thing ie blow get too hot Thus turns out modelers experiencing fuse-blowing no reason because fuse gets hot wrong reason Getting further fuses work principle enough current flows through internal current-carrying metal con ductor heats current depending element design melts blows thereby openContinued page 135 fine Electric Power Fiyer patch tor ward-thinking AMA its years AMA Suppiy Service catalog Eiectric major part modeidoms proud future September 1987 45 FOUR CYCLE ACCESSORIES Form cycuFOUR CYCLE IN-COWL MUFFLERS ENGINE MOUNTSJTEAS ENTA AS AC UPINV EMGINE.........2000 CANT ALUMINUM ALLOy17-CAM ENTA AS AC UPIIMWSIOE ENGINE2000 IT-ENS ENTA 60-60 AC UPIINV ENGINE2000 GROANS SO VUNOOT LIME SOUSE MAP MUNSON INC ENSJT ENS ENTA 00-120 AC UPIINV ENGINE 00 17-ENS ENTA 50-120 AC UP/INN/SlOE ENGINE 2700 DRILLED AND TAPPED FOR17-ENS ENTA R 120 PC UP/INN ENGINE2000 SOIGOT OLSE0IEMES17-EON ENTA 60-NO AC IIPaINVISIDE ENGINE 2700 UNMELLMM P05 21-AD60017-ENS EMMA 6 120 PC UP/IMV/SIOE ENG2000 HP VT 2100017-ASS lIP NT AS UP/INN ENGINE2000 ENYA 35-AO AC000iT-ASS NP NT AS UP/INN/SlOE ENGINE2000 SAITO PA 30CooIT-MAN MAX PS AD UP/INN ENGINE 2000 OS MAX AC PCcooJTNAS MAX PS AG UP/INY/SIOC ENGIME2000 OS MAX ADS00047-OlE MAX PS NI UP/IMY ENGINE2000 OS MAX ASSCoo17010 MAX PS SI UP/INN/SIDE ENGINE2000 SAITO PA AC-AScooJIMOS MAX PS SO UP/IMV ENGINE2700 ENYA AG AC000JTNMS MAX P040 UP/INWSIOE ENGINE2700 WISRA TA-AC000J7M28 MAX PS 120 UP/INN ENGINE2700 HP VT AS2CCJTM2S MAX PS 120 UP/INV/SIOE ENGINE2700 UNONILLEM POE 5040 00iTOAS SAITO PA AS UP/INN ENGINE2000 OS MAX PS SI300iT-SAG SAIlO PA AS UP/INN/SIDE ENGINE2000 OS MAX PS 50-75-50300iT-SOS SAITO PA SE UP/INN ENGINE2000 ENVA SC-SC-S0-12D ACsocJ~S60 SAITO PA OS UP/INV/SIOE ENGINE2000 UMONILLEM POE 12060017525 SAITO PA 120 UP/INN ENGINE2700 ENVA 5 120 ftC200017025 SAITO PA 120 UPIINN/SIOE ENGINE2700 OS MAX PS 1201600 OS MAX 12001600 POWER STICK SAITO PA 120I&DO SAPS TIANO 25001800 ENGINE TEST STANDS CANT ALUMINUMa obaf-atfti.af C lokal ofick REGULAR I/2A 60 Sf120 GLUM 1/ZA 7023 S2500 nat avoIs yos hobby shop Ef5 OIRCT aCcSfedAdd5OforL1OOf0rCOand6 kywludof tnsr* Clock 002 V Mc COO IN SdmtforCmdsnfFREE CA TALOG p795 $795 DISTRIBUTED BY $425AVAILABLE AT AMERICAS$425 FINEST HOBBY SHOPS s SMUlTIHI ZIFDUDW*ZRD 7550 SOT 00511 Road Alosoadero CA 92422 1717 youre Youre Not. OPS GLOW PLUGS Are Available Local Hobby Shop 5sPeoPIeof Ceamftetd1m /mc4 9#cc PO Box26247 Orleans LA 70186 0-535-2568 grams Chuck Anderson wrote tell us has upgraded airfoil plot program added Macintosh list usable computers new program will plot NACA four- fivedigit Quabeck airfoil equations thus eliminating need enter coordinates airfoils Additional airfoils can plotted having rerun program scratch Owners earlier versions can upgrade new version returning old disk $5 Owners ear lier CM versions can upgrade C128 $10 get full details its best contact Chuck PO Box 305 Tullahoma TN 37388 phone 615 455-5788 Eddie Dumas announced Sailplane De sign Program now available IBM PCs compatible machines program written MS-DOS BASIC 20 requires doubledensity floppy disk drive optional Epson printer new program retains features original CM version plus enhancements 30 version CM program include updated Sailplane data files seven airfoil data files price $20 directly Eddie 3220 Boomerang Lane Knoxville TN 37931 phone 615 690-3180 Chuck says very impressed Eddies program Because reading column assume have interest model Soaring somewhere between passing passionate can decide rank yourself scale ten Wherever place yourself feel obligated bring up fit respect Great Scheme Things Model Aviation sport aviation big ones well mod els governed body based Paris called Federation Aeronautique Internationale FAI FAI has delegated supervision sport avi ation matters United States National Aeronautic Association NAAnothing NASA governmental agency NAA has turn delegated model aviation mat ters fine association American modelers brings magazine namely Academy Model Aeronautics AMA Now back Paris FAI has committee charged overseeing modeling activi ties around world Committee Interna tionale Aviation Modelisme ClAM ClAM establishes rules various types inter national model competition through sub committees Pattern F3A Soaring F3B Electrics F3E etc Youre probably thinking organiza tion swell what does have Lets jump back Washington accurately Reston VA home AMA officers administrators AMA reason same FAI NAA delegate certain responsibilities helping run various phases aeromodeling people closest knowledgeable about particular type model flying ie guys gals actually participate delegatedand dedicatedfolks known Special Interest Groups SIG SIG Pattern Control Line Pylon Racing Electric Free Flight yes Soaring has buildup let know have Soaring SIG its name National Soaring Society NSS Lets look what NSS about beginning Eastern Soaring League farsighted Sailplaners knew should nationwide association speak voice behalf great hobby/sport So NSS formed 1974 However dont believe anyone would claim NSS has great success getting signif icant percentage Sailplaners join probably two basic reasons First Sailplane enthusiasts tend independent thinkers prefer doing own way Second important Sailplaners probably havent seen need Soaring SIG feelings understandable recall what role SIG believe RC Soaring deserves prosper grow think youll agree NSS place invest some support may have heard some fliers say about NSS dont anything Im tell Us Yes talking about for-profit com pany strictly volunteer organiza tion Us rated interest Soaring anything higher 2 few paragraphs back Sailplaners need pitch hr help some thing can advise AMA Contest Board Soaring rules can have input ClAM F3B meetings rule-makings can run Nats Soaring event can assist National F3B Team can develop new programs contests activities lots things can get together critical mass Some may say cant afford dues honest consideration dues cheap compared investment us have hobby dues give excellent bimonthly journal Sailplane Some say dont agree what doing need hear opinions know what want Next month Ill print names addresses NSS District VPs Theyll very happy hear meantime please look NSS ad magazine Send appli cation Byron Blakeslee 3134 Winnebago Dr Se dalia CO 8035 RC Aerobatics/Van Putte Continued page 43 competition weekend fliers want try change pace details new event advance 1988-89 AMA rule book contact Glenn Gressens 10224 Kenlee Dr Baton Rouge LA 70815 Im sure hed appreciate SASE along request Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 45 ing circuit interrupt current flow caused fuse activate first place Thus fuse already hotsuch being heated current flowing through faulty contacts fuse holderthe actual circuit current needed cause fuse blow less fuse rating result fuses activat ing no good reason Given preceding have fuses seem wrongly activating maybe youve looking problem isnt check see fuse holder fuse normally hot touch Ive some could touchContinued page 136 September 1987 135 WHEN YOU FORGET\OUR UNITS REMEMBER . RC System NiCd Batteries chargers need Only package Fits 4SV Rx 96V Tx packsPlus $5 S&HFor Cycier-Charger$17995 Gelled Cell available write call Trickier $2495Regular Model$3995 ForPlus $2 S&HFor field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V Heavy Duty Model .$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V .ij CaRa ProductssAse fur ci ton ox 221 605-987-5924Dealer inquiries irMledCanton SO 57013 suggest simply get rid problem follows Cut wires going fuse holder right holder throw away strip two wire ends about inch install insulated female crimp-on terminals both pictured install ATC-type auto fuse appropriate rating fuses quite bit smaller cylindrical ones holders have much better contactand thus less associated wrongful heating premature blowing Also should connections feel bit too loose its very easy squeeze female terminals bit pliers no fuse place tighten up mechan icaland thereby improve electricalcon nection Arming switches switches motors power system sorta like main switch box house turn whole works Off effect make system ready use thatwhateverthen makes system operate free some specifics Systems have electronic speed controls apply retard power flow motor full Off full via radio throttle channel effect arming switch such motor control system would always ready go always-armed condition good practice fact can dangerous practice cause motor can glitch whenever radio systems On/Off switch moved Since modelers just naturally often check out radio operation its anunnecessary andrisky thing have some means deactivating motor system during time Thus simple On/Off arming switcha simple toggle switch will dois advisable part such power system installation planes outfitted speed controls also equipped toggle-type arm ing switches switches installed positive battery lead right after fuse general either battery lead may usedI just have established positive-lead convention myself case fuse first arming switch next before battery wire goes anywhere else motor system installation addition systems speed controls have used arming switches electronic radio activated On/Off switches very sante reasons given above place dont personally use such master switch systems servo-driven On/Off switches Its true radio-activated such mechanical activation generally much slower-responding far less likely glitch time radio system turned off assure arranging linkage switch nearly full servo rotation needed trip switch course nothing wrong using arming switches installa tions tooits really just matter relative need and/or desirability Obviously Ive deemed servo-driven mechanical switchbe toggle switch microswitchto quite adequate purposes Electronic switches just mentioned preceding paragraphs thought Id use opening mention some related problems First theres often routine in-flight motor glitch ing motors turn off no apparent reason systems electronic switches think case because such switches really electronically driven relays very quick-acting thus very responsive slightest radio signal disturbance leads instances some type intermittent radio interference present servos fail give noticeable reactionwhile sensitive motor control does react Such uncalled-for electronic switch activation can minimal occurrence some radios whereas can frequent others know case its very unnerving would think would unnerving participating Electric competition rules feature timed motor run Another problem Ive experienced elec tronic switches contact sticking situation after turning motor cant turned Off Did say unnerving above So far can tell relay sticking due closing contacts microwelding themselves together probably happens mostly larger systems cells and/or greater motor currents So far Ive able solve either problem So least present Ive given up electronic switches Im through pursuing matter bench should successful youll see right MAs RC Electrics column reason discussing now just wont feel alone youre experiencing unnerving malfunctions Just inlate word Electric Model Fliers Chicago announcing Electric Fly-h Saturday Sunday August 15 16 Melas Park Northwest Chicago Prizes sorts categories raffle Contact CD Tom Kallevang 1701 Cottonwood Lane Apt 2K Mt Prospect IL 60056 Tell em Bob MA sent Now have made far through columnI aint done witcha yet Check index very issue really hot article yours truly modify nifty Astro DC-DC Super Charger make nifty Please send comment question SASE please Bob Kopsk 25 West End Dr Lanadale PA 19446 Next month more power systems galore Caliph similar planes SAFE FLYING IS NO ACCIDENT 136 Model Aviation hate install hinges Try Easy Hingese See Difference single slot few drops C/A glue its done No gouging pinning hinge pins worry about Incredibly strong Virtually indestructible 24 hinges 295 e e4ri ea 6ncc P0 Box 1743 Marcos CA 92069 FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid US via UPS Cal add 6/tax SMALL BOX 114 lb rubber $450 size Orders up $1600 114 lb rubber mdse. add $150 UPS Over $15 add 10% CROCKET HOOKS NOW MADE BY FAI SEND $1 FAI Model Supply FOR CATALOG P0 BOX 3957 Torrance CA 90610 I, 5tock Immediate Shipment New ZENOAN 6237 Cu In $23995 New Oude 40 cm i3-beeing wih nprin9 netei$14995 Reg Ouude40 95 erisehelie fiywheei 90 Ree Ocud, de Pew Aewbiy Only painn $6490 OUADRA e ZENOAH REPAIR 01500 pius enrsl Jim Menne ERCOUPEPLANS 0239R SEMI-KiT sense Jim Mesue TOMAHAWKPLANS 02395 SEMI-KiT $9690 Jim Menue J3 KIflEPIPLANS $2995 FIJLL-KIT 013996 WE ROSINHOOD U KIT$5995 isene 0301 WE ROSINHOOD 99 KIT$111995 imee $9ei MALONEY iee 99ZENOAH 0-35 95 FLOATS 4e-114 uceiecuen $2195 aumpinre kit $4795 10 WWi WHEELS 0 P/K Spring Surer02495 PLANS SUPER STOARMAN 14iOudIreyl$2995 13 TAYLORCRAFT 13 cUe Neii$2995 vOLKSPLANE 1/3 Chicken Churiiel02395 Serve H-356 42 01295 Wuid SlO Ia ig wedeis$3495 Preen ii GER TOP FLiTE DYNATHRUST2S% OFF us Ouadr FUEL TANKS16, 069932u 5795 FIeERGALSS ARROW SHAFTS 519 u32 lung 605 $1195 255, 5ev, Add$2apo u IM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706
Edition: Model Aviation - 1987/09
Page Numbers: 44, 45, 135, 136
Radio Control Electrics Bob Kopski RECEIVER POWER Strange title right Usu ally would expect see words like motor power column Well what Im talking about really like powering receiver some reason Ive getting lot reader mail lately questions about powering receiver off motor battery sol thought Id share some thoughts subject YesI have done past yes have some products allow done Personally Ive discontinued practice because did have some bad experiences judgement savings questionable First bad experience Depending radio equipment connection receiver wiring power system wiring may manifest itself motor noise receiver effect powering receiver motor battery just like using speed control optical coupling total electrical isolation invita tion motor brush noise piped receiver via interconnecting wiring can show up flight unusual glitching and/or apparent range reduction tricky part until try may know fact some radio systems susceptible form electrical noise others Minea variety mixed products accumulated over yearsis So make no hard wiring connections between motor power system radio guidance system Theres bit analogy overheard some SAM Society Antique Modelers folks discussing ignition noise radio-related prob lems Well turns out evidently some radios doand some dontreact adversely ignition sparks Just about same thing folks As questionable savingsits weight savings questionable dollar savings since battery eliminator devices comparable radio batteries weight cost Electrics seven equip ped 250 mAh packs weigh about two ounces totally reliable independent long-lasting radio power absolutely no motor-connected noise concerns course youve seen particular radio particular battery eliminator work just fine should able duplicate system success fully theres last nagging question What about motor battery voltage getting too low dunno answer Leisure Ainptique Readers beginning inquire about pretty-looking nicely named Leisure Amptique responses have Im sorry dont have nor have seen cant comment Well thats changed sorta still dont have nor have seen now have next best thingmaybe better thing turns out just few days ago Keith Shaw Grand Electric renown called chitchat conversation described flying very day Leisure Amptique actoality thats just about talked about seems Keith just flown first time dayand friends several spectators local park fact seems Keiths Amptique just about flies itself per fectly predictable stable docile otherwise casual safe fun Hope got right Normally Im reluctant publish anything have firsthand feel foror least seen cause theres mistake some sort its mineand can fix case however since Keith doesnt make mistakes Ive never seen consider input absolutely solid complete story Keith used geared Leisure system think seven 800 mAh cells 10 x 6 prop plus Jomar 5C5 speed controller reaction youre wondering stop instead just ordered Amptique myself how-to-do-itby Keith Shaw July issue Model Builder has feature article Keith course its Electric Specifically Fuses can cause unexpected headaches fuse doesnt make good low-resistance contact its holder about read column cylindrical historic fuse L Lower can especiallytroublesome Go newerautomotive ATC-type fuse L Above R Crimp-on connectors motorwiring readiiyavaiiable Radio Shack hardware auto supply stores closeup blown ATC-type fuse R clearly showathe gap melted middle fuse elementoccurs too much current flowsthrough fuse Theres good discussion fuses month column 44 Model Aviation i Master power switch nose Bobs new Caliph installed backwards theory uniikeiy event modei strikes soiid object inertia switch iever wiii cause fiy forward prevent further disaster Keith has gone public tells about plans designs fabulous Scale other Electrics weve seen read much about gets details plane size weight power system considerations flight time on course theres ingredient cant pass along thats outright ability build fly beautifully Nevertheless article must reading serious Electric modelers course same magazine another Mitch Polings regular Electric columns too July MB realbargainand necessity Electric Flier patch missed first came out maybe did too Its Electric Flier patch shown photos available AMA Supply Service mere buck Supply Service catalog several-page magazine-size booklet AMA member gets after joining current year contains much just patch Knowing Electric modelers proud leading hobby future also know youd interested patch So dust off catalog turn page three see what Im talking about might check out rest catalog too send patchnoting above no Gas Flier patch per se fuse problem Two popular RC Electrics columns ever have ones May June 1985 described simple charging system large variety battery packs including large cell-count Its now around two years since appeared readers have written over period expressing satisfaction columns cluded among letters own personal experience since time have some problems/questions related no reason fuseblowing Radio Shack voltage inverters months photos shows fuses holders glass cylindricaltype fuse fuse-holder type comes Radio Shack product upon columns basedthe so-named Voltage Inverter good name turns out sometimes fuse holder contacts make good electrical connection metal fuse ends long round glass fuses good electrical connection low-resistance con nection case fuse fuse holder can get quite hot because high-resistance connection Ordinarily such heat would anything annoyance However fuses thing ie blow get too hot Thus turns out modelers experiencing fuse-blowing no reason because fuse gets hot wrong reason Getting further fuses work principle enough current flows through internal current-carrying metal con ductor heats current depending element design melts blows thereby openContinued page 135 fine Electric Power Fiyer patch tor ward-thinking AMA its years AMA Suppiy Service catalog Eiectric major part modeidoms proud future September 1987 45 FOUR CYCLE ACCESSORIES Form cycuFOUR CYCLE IN-COWL MUFFLERS ENGINE MOUNTSJTEAS ENTA AS AC UPINV EMGINE.........2000 CANT ALUMINUM ALLOy17-CAM ENTA AS AC UPIIMWSIOE ENGINE2000 IT-ENS ENTA 60-60 AC UPIINV ENGINE2000 GROANS SO VUNOOT LIME SOUSE MAP MUNSON INC ENSJT ENS ENTA 00-120 AC UPIINV ENGINE 00 17-ENS ENTA 50-120 AC UP/INN/SlOE ENGINE 2700 DRILLED AND TAPPED FOR17-ENS ENTA R 120 PC UP/INN ENGINE2000 SOIGOT OLSE0IEMES17-EON ENTA 60-NO AC IIPaINVISIDE ENGINE 2700 UNMELLMM P05 21-AD60017-ENS EMMA 6 120 PC UP/IMV/SIOE ENG2000 HP VT 2100017-ASS lIP NT AS UP/INN ENGINE2000 ENYA 35-AO AC000iT-ASS NP NT AS UP/INN/SlOE ENGINE2000 SAITO PA 30CooIT-MAN MAX PS AD UP/INN ENGINE 2000 OS MAX AC PCcooJTNAS MAX PS AG UP/INY/SIOC ENGIME2000 OS MAX ADS00047-OlE MAX PS NI UP/IMY ENGINE2000 OS MAX ASSCoo17010 MAX PS SI UP/INN/SIDE ENGINE2000 SAITO PA AC-AScooJIMOS MAX PS SO UP/IMV ENGINE2700 ENYA AG AC000JTNMS MAX P040 UP/INWSIOE ENGINE2700 WISRA TA-AC000J7M28 MAX PS 120 UP/INN ENGINE2700 HP VT AS2CCJTM2S MAX PS 120 UP/INV/SIOE ENGINE2700 UNONILLEM POE 5040 00iTOAS SAITO PA AS UP/INN ENGINE2000 OS MAX PS SI300iT-SAG SAIlO PA AS UP/INN/SIDE ENGINE2000 OS MAX PS 50-75-50300iT-SOS SAITO PA SE UP/INN ENGINE2000 ENVA SC-SC-S0-12D ACsocJ~S60 SAITO PA OS UP/INV/SIOE ENGINE2000 UMONILLEM POE 12060017525 SAITO PA 120 UP/INN ENGINE2700 ENVA 5 120 ftC200017025 SAITO PA 120 UPIINN/SIOE ENGINE2700 OS MAX PS 1201600 OS MAX 12001600 POWER STICK SAITO PA 120I&DO SAPS TIANO 25001800 ENGINE TEST STANDS CANT ALUMINUMa obaf-atfti.af C lokal ofick REGULAR I/2A 60 Sf120 GLUM 1/ZA 7023 S2500 nat avoIs yos hobby shop Ef5 OIRCT aCcSfedAdd5OforL1OOf0rCOand6 kywludof tnsr* Clock 002 V Mc COO IN SdmtforCmdsnfFREE CA TALOG p795 $795 DISTRIBUTED BY $425AVAILABLE AT AMERICAS$425 FINEST HOBBY SHOPS s SMUlTIHI ZIFDUDW*ZRD 7550 SOT 00511 Road Alosoadero CA 92422 1717 youre Youre Not. OPS GLOW PLUGS Are Available Local Hobby Shop 5sPeoPIeof Ceamftetd1m /mc4 9#cc PO Box26247 Orleans LA 70186 0-535-2568 grams Chuck Anderson wrote tell us has upgraded airfoil plot program added Macintosh list usable computers new program will plot NACA four- fivedigit Quabeck airfoil equations thus eliminating need enter coordinates airfoils Additional airfoils can plotted having rerun program scratch Owners earlier versions can upgrade new version returning old disk $5 Owners ear lier CM versions can upgrade C128 $10 get full details its best contact Chuck PO Box 305 Tullahoma TN 37388 phone 615 455-5788 Eddie Dumas announced Sailplane De sign Program now available IBM PCs compatible machines program written MS-DOS BASIC 20 requires doubledensity floppy disk drive optional Epson printer new program retains features original CM version plus enhancements 30 version CM program include updated Sailplane data files seven airfoil data files price $20 directly Eddie 3220 Boomerang Lane Knoxville TN 37931 phone 615 690-3180 Chuck says very impressed Eddies program Because reading column assume have interest model Soaring somewhere between passing passionate can decide rank yourself scale ten Wherever place yourself feel obligated bring up fit respect Great Scheme Things Model Aviation sport aviation big ones well mod els governed body based Paris called Federation Aeronautique Internationale FAI FAI has delegated supervision sport avi ation matters United States National Aeronautic Association NAAnothing NASA governmental agency NAA has turn delegated model aviation mat ters fine association American modelers brings magazine namely Academy Model Aeronautics AMA Now back Paris FAI has committee charged overseeing modeling activi ties around world Committee Interna tionale Aviation Modelisme ClAM ClAM establishes rules various types inter national model competition through sub committees Pattern F3A Soaring F3B Electrics F3E etc Youre probably thinking organiza tion swell what does have Lets jump back Washington accurately Reston VA home AMA officers administrators AMA reason same FAI NAA delegate certain responsibilities helping run various phases aeromodeling people closest knowledgeable about particular type model flying ie guys gals actually participate delegatedand dedicatedfolks known Special Interest Groups SIG SIG Pattern Control Line Pylon Racing Electric Free Flight yes Soaring has buildup let know have Soaring SIG its name National Soaring Society NSS Lets look what NSS about beginning Eastern Soaring League farsighted Sailplaners knew should nationwide association speak voice behalf great hobby/sport So NSS formed 1974 However dont believe anyone would claim NSS has great success getting signif icant percentage Sailplaners join probably two basic reasons First Sailplane enthusiasts tend independent thinkers prefer doing own way Second important Sailplaners probably havent seen need Soaring SIG feelings understandable recall what role SIG believe RC Soaring deserves prosper grow think youll agree NSS place invest some support may have heard some fliers say about NSS dont anything Im tell Us Yes talking about for-profit com pany strictly volunteer organiza tion Us rated interest Soaring anything higher 2 few paragraphs back Sailplaners need pitch hr help some thing can advise AMA Contest Board Soaring rules can have input ClAM F3B meetings rule-makings can run Nats Soaring event can assist National F3B Team can develop new programs contests activities lots things can get together critical mass Some may say cant afford dues honest consideration dues cheap compared investment us have hobby dues give excellent bimonthly journal Sailplane Some say dont agree what doing need hear opinions know what want Next month Ill print names addresses NSS District VPs Theyll very happy hear meantime please look NSS ad magazine Send appli cation Byron Blakeslee 3134 Winnebago Dr Se dalia CO 8035 RC Aerobatics/Van Putte Continued page 43 competition weekend fliers want try change pace details new event advance 1988-89 AMA rule book contact Glenn Gressens 10224 Kenlee Dr Baton Rouge LA 70815 Im sure hed appreciate SASE along request Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Electrics/Kopski Continued page 45 ing circuit interrupt current flow caused fuse activate first place Thus fuse already hotsuch being heated current flowing through faulty contacts fuse holderthe actual circuit current needed cause fuse blow less fuse rating result fuses activat ing no good reason Given preceding have fuses seem wrongly activating maybe youve looking problem isnt check see fuse holder fuse normally hot touch Ive some could touchContinued page 136 September 1987 135 WHEN YOU FORGET\OUR UNITS REMEMBER . RC System NiCd Batteries chargers need Only package Fits 4SV Rx 96V Tx packsPlus $5 S&HFor Cycier-Charger$17995 Gelled Cell available write call Trickier $2495Regular Model$3995 ForPlus $2 S&HFor field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V Heavy Duty Model .$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V .ij CaRa ProductssAse fur ci ton ox 221 605-987-5924Dealer inquiries irMledCanton SO 57013 suggest simply get rid problem follows Cut wires going fuse holder right holder throw away strip two wire ends about inch install insulated female crimp-on terminals both pictured install ATC-type auto fuse appropriate rating fuses quite bit smaller cylindrical ones holders have much better contactand thus less associated wrongful heating premature blowing Also should connections feel bit too loose its very easy squeeze female terminals bit pliers no fuse place tighten up mechan icaland thereby improve electricalcon nection Arming switches switches motors power system sorta like main switch box house turn whole works Off effect make system ready use thatwhateverthen makes system operate free some specifics Systems have electronic speed controls apply retard power flow motor full Off full via radio throttle channel effect arming switch such motor control system would always ready go always-armed condition good practice fact can dangerous practice cause motor can glitch whenever radio systems On/Off switch moved Since modelers just naturally often check out radio operation its anunnecessary andrisky thing have some means deactivating motor system during time Thus simple On/Off arming switcha simple toggle switch will dois advisable part such power system installation planes outfitted speed controls also equipped toggle-type arm ing switches switches installed positive battery lead right after fuse general either battery lead may usedI just have established positive-lead convention myself case fuse first arming switch next before battery wire goes anywhere else motor system installation addition systems speed controls have used arming switches electronic radio activated On/Off switches very sante reasons given above place dont personally use such master switch systems servo-driven On/Off switches Its true radio-activated such mechanical activation generally much slower-responding far less likely glitch time radio system turned off assure arranging linkage switch nearly full servo rotation needed trip switch course nothing wrong using arming switches installa tions tooits really just matter relative need and/or desirability Obviously Ive deemed servo-driven mechanical switchbe toggle switch microswitchto quite adequate purposes Electronic switches just mentioned preceding paragraphs thought Id use opening mention some related problems First theres often routine in-flight motor glitch ing motors turn off no apparent reason systems electronic switches think case because such switches really electronically driven relays very quick-acting thus very responsive slightest radio signal disturbance leads instances some type intermittent radio interference present servos fail give noticeable reactionwhile sensitive motor control does react Such uncalled-for electronic switch activation can minimal occurrence some radios whereas can frequent others know case its very unnerving would think would unnerving participating Electric competition rules feature timed motor run Another problem Ive experienced elec tronic switches contact sticking situation after turning motor cant turned Off Did say unnerving above So far can tell relay sticking due closing contacts microwelding themselves together probably happens mostly larger systems cells and/or greater motor currents So far Ive able solve either problem So least present Ive given up electronic switches Im through pursuing matter bench should successful youll see right MAs RC Electrics column reason discussing now just wont feel alone youre experiencing unnerving malfunctions Just inlate word Electric Model Fliers Chicago announcing Electric Fly-h Saturday Sunday August 15 16 Melas Park Northwest Chicago Prizes sorts categories raffle Contact CD Tom Kallevang 1701 Cottonwood Lane Apt 2K Mt Prospect IL 60056 Tell em Bob MA sent Now have made far through columnI aint done witcha yet Check index very issue really hot article yours truly modify nifty Astro DC-DC Super Charger make nifty Please send comment question SASE please Bob Kopsk 25 West End Dr Lanadale PA 19446 Next month more power systems galore Caliph similar planes SAFE FLYING IS NO ACCIDENT 136 Model Aviation hate install hinges Try Easy Hingese See Difference single slot few drops C/A glue its done No gouging pinning hinge pins worry about Incredibly strong Virtually indestructible 24 hinges 295 e e4ri ea 6ncc P0 Box 1743 Marcos CA 92069 FAI RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price $1300 includes 4 oz Slick Lube $1200 no lube Slick costs $175 Postpaid US via UPS Cal add 6/tax SMALL BOX 114 lb rubber $450 size Orders up $1600 114 lb rubber mdse. add $150 UPS Over $15 add 10% CROCKET HOOKS NOW MADE BY FAI SEND $1 FAI Model Supply FOR CATALOG P0 BOX 3957 Torrance CA 90610 I, 5tock Immediate Shipment New ZENOAN 6237 Cu In $23995 New Oude 40 cm i3-beeing wih nprin9 netei$14995 Reg Ouude40 95 erisehelie fiywheei 90 Ree Ocud, de Pew Aewbiy Only painn $6490 OUADRA e ZENOAH REPAIR 01500 pius enrsl Jim Menne ERCOUPEPLANS 0239R SEMI-KiT sense Jim Mesue TOMAHAWKPLANS 02395 SEMI-KiT $9690 Jim Menue J3 KIflEPIPLANS $2995 FIJLL-KIT 013996 WE ROSINHOOD U KIT$5995 isene 0301 WE ROSINHOOD 99 KIT$111995 imee $9ei MALONEY iee 99ZENOAH 0-35 95 FLOATS 4e-114 uceiecuen $2195 aumpinre kit $4795 10 WWi WHEELS 0 P/K Spring Surer02495 PLANS SUPER STOARMAN 14iOudIreyl$2995 13 TAYLORCRAFT 13 cUe Neii$2995 vOLKSPLANE 1/3 Chicken Churiiel02395 Serve H-356 42 01295 Wuid SlO Ia ig wedeis$3495 Preen ii GER TOP FLiTE DYNATHRUST2S% OFF us Ouadr FUEL TANKS16, 069932u 5795 FIeERGALSS ARROW SHAFTS 519 u32 lung 605 $1195 255, 5ev, Add$2apo u IM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706