Radio Control: Electrics

RADIO CONTROL ELECTRICS 11U JLL THIS MONTHS TOPICS include new product info reader reaction Mega/Mayhem motors some especially gratifying special reader input Larry Sribnick head modeler SR Batteries has announced availability videotapes 1996 SR Symposium Symposium held last several years Friday annual KRC Electric Fly weekend has featured numerous guest speakers presenting varied Electric subjects always-packed room Because high interest level Larry has produced four hours 1996 proceedings two two-hour tapes Volume features Keith Shaws presentation early development Horton multiengine wings describes own development Electric model well popular King Crimson quadpowered wing Keith master Electric accomplishment tape clearly shows Also featured presentation Larry Sribnick himself care feeding Ni Cds can tell Larry has given polished presentation numerous times never grows old Volume Two features four presentations include Bill Griggs expert info Speed 400-powered Pylon racers Bill frequent contributor MAN heavily Speed 400 arena computerrelated aeromodeling matters well Clyde Geist presents design philosophy behind slow flight contest-winning Electric saw Clydes airplane phenomenal Tom Hunt engineer Northrop/Grumman expert modeler chief modeler Modelair-Tech presents need know about stall prevention during design flight theres own demonstration Electric Vintage RC Designs SOs 60s complete operational Galloping Ghost systems drew quite chuckle crowd SR tapes $1995 plus $350 shipping shipping charge same both getting both bargain Contact SR Batteries Box 287 Bellport NY 11713 Tel 516286-0079 November 1996 column featured photo info about Good 01 Dawg ready built Electric designed produced Bill Bowne interest Electric high Bill simply unable meet demand has transferred rights friend Elliot Boulous Elliot runs Institute Silent Fight Box 430 Morgantown PA 19543 Tel 610 286-5129 understanding Elliot will produce kits design well some ARFs originally intended Elliot supplies sorts things Electric does other custom building new book Guide Computer Radio Control Systems Don Edberg does great job describing intricate workings modem RC radio systems knowledge book has no equal fills alongexisting need 180page book has 100 illustrations two dozen tables plain language throughout youre confused advertising terminology have sophisticated RC system feeling uncomfortable about using book Little did realize its tooas described later column book $1795 postpaid US Dynamic Modelling 4922-3P Rochell Ave Irvine CA 92604-2941 Tel 714 552-1812 Readers continue react strongly End Charger Beeper accessory circuit described March column Apparently simple circuit hit home input reader made feel especially good modeler immediately interested EOCB appeared never built anything electronic before wrote see selling EOCBs lam suggested approach club electronics hobbyist some help Nearly club has modelers especially adept electronic things few weeks later wrote again happily announce undertaken challenge himself completed project NV state policeman Bill Griggs radars Steve Neus FAI 85 mph accelerating vertical KRC 96 successfully seemed thoroughly happy proud first-ever electronic accomplishmentas well should suspect will last electronic endeavor course letters stories success some readers did experience difficulties project learned its nearly impossible diagnose problems via letters and/or phone able assure everyone else others got EOCBs going just fine encouraging news seemed make em go renewed spirit consideration large positive reaction wrote Bob Boucher AstroFlight told him about suggested might want keep interest mind designs future chargers sent him sample EOCB try suggest want sort product enhancement future tell Bob well May column described bench-testing Kyosho Magnetic Mayhem car motorthe 102 Model Aviation 96 Gene Sellers Somerville NJ won fully equipped custom Electric model purchase single raffle ticket Leisure radial drive Kyosho Magnetic Mayhem motor Note missing mounting earsmotor strapped V-block replacement discontinued Mega Ive flying new version have found fully satisfactory replacement Ive also opportunity bench-run test-fly motor other gear ratios props Note particular Mayhem Mega motor used reverse version Normal reverse versions available Its timed run clockwise useful direct drive normal props Most gears course reverse direction rotation props will turn usual counterclockwise direction motor running reverse motors readily available Tower some readers have told getting em hobby shops actually described truck motors rather car motors originally used Megallvlayhem Leisure 381 Radial Gear Drive Sonic Tronics 13/2 x 7 folder 10 cells combo pictured its performance discussed May 1996 column also described like running motor about 200 watts little requires about 20 amps 10-cell packa nice operating current product same operating conditions can obtained 11 x 6 using 31 ratio eithera9x7ora l0x5withthe25l ratio smaller props turning faster suited wider variety models Ive flown both lower-ratio options Revolt Both flew very well some edge going higher ratio/larger prop combo no surprise All-up weight 61 ounces flight times exceeded 15 minutes using 10-cell pack 17 Ah SCRCs B&T Two others flew same airplane same results Ground handling/takeoff grass excellent Leisure radial drives motors attached intended mounted against firewall front former using three screws through molded-in logs However prefer cut lugs off mount motor/gear drive combo nesting motor block tie-down straps Leisure Radial drives three ratios well replacement parts available New Creations RC Box 496 Willis TX 77378 Tel 409 856-4630 have recently enjoyed some special input industry readers also read column April column described some excitement experiences throttle emphasis experiments showed some performance curves associated technology throttle emphasis idea alter either transmitter throtfie stick response shape ESC control response shape usual linear curve sort reverse exponential curve goal get linear power response motor throttle stick advanced Normally motor power response soft low end bunched near high end stick throw uncomfortable response becomes glaringly apparent once experience emphasized response way emphasis word used April column describe concept T-ON OWER LESS HIISSLEY MOE RIG Dieselize Davis Diesel Its Awesome 4 N lFt 4CANO L4 50% Power Same Easy Starting No Glow Plugs Runs flvice Long Scale Sound Davis Diesel Heads Over 100 models 04916 cu Wodds largest predaer Modal Diesel Feels DAVIS P0 Box 141 De MA ord CT 06460 877-1670 MODEL PRO XTS complete rmation packet send $400 Icredit appiled first orderl SANYO RC-2000 md Cells$650 Ea SANYO RC-2000 Matched md Cells$700 Ea SANYO 1700 SCRC Matched lnd Cells$500 Ea SANYO N1700 SCRC Ind Cells$450 Ea SANYO N 1400 SCR Ind Cells$300 Ea SANYO N 1000 SCR Ind Cells$350 Ea SANYO N800 AR Ind Cells$ 350 Ea SANYO KR600 AE Ind Cells$250 Ea SANYO N350 AA md Cells$250 Ea SANYO 600 AA Rechargeable$ 150 Ea SAFT Full C Rechargeable Batteries$ 100 Ea 4 Cell 270 AA Receiver Pk$1000 Pk 5 Cell 1000 AE Receiver Pk$1800 Pk CONNECTORS red black$ 150 Pr -IIZflAfl- BRAIDS AVAILABLE August1997 105 Performance Brushless DC Motors n sdd en v no oth gh pe fe mance B ush ens mstvrs Avoox seowoffe oga ci nev kts havomschnedcut psrts sre made USA Annoy has cemplete line direct drive sod geared mstsrs tsr csmpetitsr sport flyer starhng low $2tt tsr mstsr/cvntreller system Call fsr Catalog ertsrmsnce Hybridnve Avsilsble Specisi very limited time d/na fullvnrearamrnablel APPLIED DESIGN CORPORATION P 0 Box 3384 Torrance CA 90510 Add 20% tofal order shipping MINI ER ADJUSTASLE TENSION HANS BELT SAMBA FIMLY HOLDS PAPER FOR EASIER SANDINS Padded flab cad saws Handy Ia Held $310 Easyle Use MINI-STRIPS PRECISION DIE-CUT Medlam Bernet SAVES TIMEREPLACEMENTFlag Garnet AHO EFFORT $2 SANDING BELTS d Water Preot MINI $365 TEE~ BAR 43MPrecsbon Sander Level Finishing & Corner Sanding PACKAGE COMPLETE WITH 3 SHEETS PEEL & STICK SANDPAPER Im sure what manufacturers will call name technique didnt know folks Aveox leader brushless motor field developing prototype brushless controller similar built-in nonlinear response Just days after column appeared received sample new controller have flying communicating David Palombo head aeromodeler Aveox emphasis concept works great Aveox About 10 days after April issue came out Joe Utasi early pioneer industry leader speed-control design production former head Jomar called ask Id try out new ESC design just finished design incorporated emphasis concept Joe sold Jomar business Electronic Model Systems has producing Joes speed control other electronic designs under Jomar name Joe consultant EMS process upgrading some product designs April issue came out emphasis idea will designed future EMS/Jomar speed controls best knowledge Aveox first out shaped throttle response brushless Jomar first out same conventional motors feel strongly try new products will enjoy whole new Electric feel afford suspect microprocessorcontrolled ESC designs incorporate technique will fall popularity nice thing about concept applied microprocessor-equipped ESCs costs no incorporate other hand its likely analog controls will have emphasisits much harder case Id really like hear anyone experiencing new Aveox Jomar products feel about modified stick response non-industry reader advised decade-old Airtronics Vision transmitter capable throttle-response shaping included relevant text transmitter instruction manual As understand transmitter can programmed have throttle response either normal reversed form curve Apparently some wet engines benefit shape other intrigued out came Guide Computer Radio Control Systems appears other transmitters feature too have impression more-sophisticated more-costly helicopter versions involved Anybody out know about Im also anxiously awaiting reaction Keith Shaw presently incorporating adjustable emphasis transmitters So ends another column Please have great Electri-flying summer please enclose SASE correspondence youd like reply 4MINI TIPS MAKES ANY GLUE TUBE INSTANT GLUE GUM PUT THE GLUE WHERE YOU WANT TI Seab web pie N less I. Neteeeatncleaa 50 ie Saw gas reggae eu-cast tratee waft camleslaMe chip-pent pleaUc insat beadle Receding cue ad eabble B blade givee geed wark acme Cab weed plastic mebI aed HARDENED MUSIC WIRE MINI SAW BLADES 3Iat$235 FINE TOOTH REPLACEMENT HACK SAW BLADES B IacIiJ TEMPERED lee ceiling HARDENED MUSIC WIRE