I think the problem is the high Voltage (Or the magnetic as Chris suggest !? Super cool guys or what was it ?).
I fly mainly with the standard M&K mechanics, like many others. And I'm aware of the problem with not smooth working mechanics. S...o with 6 Volts and lots of flying it seems as it is possible to blew a few servos every year. I think a lower voltage as Ken suggest could solve the problem.

Could it be due to low temperature? In one of those I'm wrong, but I happened once and it was a day that the temperature was very low, less than 0, was the only time that happened to me with a Servo-WW.
The moisture condenses on the inside ...and freezes, the ice stops the Servo breaking... maybe happen something with the very cold weather like in Sweden.
I use Hitec HS56, HS65, GWS Picco and Narro with M&K timer and I have no problem, only once burned a servo. Sorry if I'm wrong.

Ramiro, that is a very interesting idea. There are no bad ideas, this is difficult problem and all suggestions should be made. People test their systems by putting them in the freezer but that is typically a very cold dry environment. In t...he real world it may be different. Also the temperature inside the model changes once the model is on tow. Up to now I had been more interested in the effect of the temperature on components of relatchable hooks. Rene Limberger's altimeter records both altitude and temperature. I have seen output during hot weather not during cold. Then it dropped noticeably during tow.

If this is a problem it must be true for others in cold places too. Any one else see this?

With respect to Ken's comment I agree with him - both with respect to voltage and servo travel. I have customers who say they know Ken and some others just use one Lipo cell but "they" launch much harder they need faster servo movement so need 6+ volts. This is not always true as the internal resistance of a lipo is low so its voltage will not sag under load like it would with a NiMH. To win you have to be there at the end.

Roger

I think the cold theory is a good one; perhaps someone can test ?
I use a single LiPo (iPod Nano) with 1 or 2 servos and they work fine with no obvious loss of servo speed. With 3 servos I use a 5v booster as the servo speed is noticeably slower; I've never tried 6v on any servo. I've never burnt out a servo (but I have burnt out a couple of boosters) so similar experiences to Snoopy [Ken Bauer's FB Avatar] above.

Anyway, what burns out ? If it helps I have 4 sets of Futaba S3154 and one set of Futaba S3110 drive electronics if anyone needs them.

CHE

I think also the cold conditions will take more life out of the servos. But in fact, I cant say I had more servos breaking down during winter then in summer. But of course it can be that all flying in cold in the end makes the servos die, but it can be later, sometimes in the summer.....
Well Chris I have a few S3154 burnt servos at home.......

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