FlyerJeff

My Feedback: (5)

Putting together a Great Planes Super Stearmen and bought Hitec HS645MG servos, I have used Hitec in the past without issue but these Groan all the time like they are under a strain and their not, is this common? I am using a 2000ma 6v 5c battery fully charged.

Thanks for the Help!!

huck1199

Is your TX too near the RX while you bench test?

FlyerJeff

My Feedback: (5)

Could be, the funny this is the Aileron servos don’t do it. I’ll take it outside and give it a test.

Thanks for the Help!

huck1199

You might check your endpoint settings.

SharpProp

Mine like to. I think if the linkage puts even the slightest twist on the servo arm it will groan a bit. I wouldn't worry about it too much.

rcflyingnut

My Feedback: (9)

I have them in a Rascal 110 and the ones on the ailerons groan, but not the elevator. The ailerons are not in a bind what so ever.

SharpProp

Do they stop if you bump the control surface a bit? If so, it has been my experience that these servos are a bit noisy around center. I'm sure they are fine.