In a message dated 96-03-17 20:51:59 EST, you write:
>Hi guys -- when I put up my Yaesu G-1000SDX last fall I agonized over this
>issue a lot. The "fix" in later production is to put a fifth bolt through
>the mast clamps and have you drill the bottom of the mast in order to get it
>through. That being done, the tightness of the mast clamps is well-nigh
>irrelevant, but of course there's no "give" at all in the event of really
>major stresses. Also, the hole has to be drilled through the mast fairly
>precisely, something my local welding shop proved unable to do.
Hiya, Pete --
"Pinning" the mast to the rotator will give you the added security you
were looking for. The only downside is that the forces are now transferred
down to the NEXT weakest part of the rotator system -- usually the brake,
mounting bolts or gears. You can't win.
73, Steve K7LXC