[Towertalk] Grounding mast to tower

Pete Goudreau goudpj@mac.com
Tue, 2 Apr 2002 20:46:40 -0600


Tom Delker wrote:

> I have measured the resistance between Thrust Bearings/Rotors and
> their mounting points. It isn't a pretty picture, usually something
> like 10-30 ohms. This could explain why the rotor is usually one of
> the first to go as a result of a strike or nearby hit.

Ah, thanks for that.  You wouldn't happen to remember what thrust 
bearings you measured, do you?

> I take a #4 flexible conductor and tie it to the mast and then the
> tower below the rotor mount. No problems to far.

I figure it couldn't hurt either, and it's cheap.

Thanks very much,
Pete, AD5HD