The photo in the link provided indicates that the servos were 5125 digitals. 125's may or may not have done this, but it is likely that the servos were stalled at one end of travel or the other and that is why they smoked. I would think the digitals are more likely to exhibit this behavior if the receiver is switched on before the transmitter.
Ed Jett ----- Original Message ----- From: "Stefan Smets" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, February 29, 2004 1:56 PM Subject: RE: [RCSE] Hitec wing servos again I'm not sure if it makes a difference, but I thought the Hitec 125MG is an analog servo, not a digital. Stefan. -----Oorspronkelijk bericht----- Van: Andrew E. Mileski [mailto:[EMAIL PROTECTED] Verzonden: zondag 29 februari 2004 20:09 Aan: [EMAIL PROTECTED] Onderwerp: Re: [RCSE] Hitec wing servos again yclui_hk wrote: >>OK, another piece of bitter experience to share on top of that >>reported earlier . >> >>Another friend of mine used two Hitec 125MG for the ailerons of his >>new model and two Hitec 81MG for the tail. The maiden flight was >>uneventful but when he switched the receiver on for the next flight > >>(the transmitter was off ), the sound of the on-board beeper died >>down quickly before he smelt something burning inside the model. >>Guess what ? the two wing servos just burned themselves to death at >>the same time ! They are servo #2 and #3 in This is NOT surprising. The servos were stalled. Digitals are very powerful and precise, and don't tolerate being stalled. NEVER turn the receiver on FIRST! Always the transmitter FIRST! I noticed that a JR 649 PCM was rock solid without a transmitter signal, but would push the servos to their stops depending on where the servo was at power-on. I noticed a Hitec Electon 6 jitters like CRAZY until the first transmitter pulse is received. If you ever fly electrics, you QUICKLY learn to turn on the transmitter first, or you learn to live without fingers! -- Andrew E. Mileski Ottawa, Canada RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
