[Towertalk] structural assumptions// bolts - Orion 2800

[alwilliams@olywa.net (Al Williams)]

----- Original Message -----
From: <K7LXC@aol.com>
>     I've installed numerous M2 Orion 2800 rotators over the years and
> invariably the mast turns eventually due to loosening of the mast clamp.
As
> you probably know, it's a couple of massive pieces of steel and with six
> bolts it doesn't seem likely that they'll loosen up but they do.
>

I seem to recall reading somewhere that it is desirable to have the
mast clamp slip for situations of a very large beam load and a high
wind; that it is better for an occasional slip than to "bust" the rotator.
What kinds of loads have slipped?

k7puc