I recently posted my own experiences with HS 225MG servos. I suffered the failure of four of these servos in the space of a month. The first was a flap servo on my Hera that failed in flight. (This had been in the plane about 2 years.)
The other three were on the rudder and elevator of my wife's Chicago Style RES plane. These were brand new servos in a brand new airplane. The rudder servo failed first. My wife had just landed her plane. I noticed the rudder seemed to have been responding a little strangely as she came in to land. I asked her to wiggle the sticks on her TX. The rudder wagged twice, then twitched and died. The next week we showed up at the field and switched on the plane only to find the elevator servo was dead. A week later, the new HS225MG that I replaced on the rudder died again. The fact that the "Glider King" site has a conversation thread entitled "HS 225MG sudden Death Syndrome" is telling. I don't recall ever seeing a similar thread anywhere on any other manufacturer's servo. Vaughn Entwistle 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.