[TowerTalk] Need some mast/rotor advice

[Don Moman VE6JY]

I wouldn't be concerned about stress on the rotor in this situation.. It
has 2 levels of pretty sturdy bearings and can take lots of side force.  I
might be a bit more concerned about the capability of the  aluminum
supporting mast and/or the mast for the hex beam.

73 Don
VE6JY

On Sun, Feb 3, 2013 at 3:45 AM, Jim Miller <jim at jtmiller.com> wrote:

> I've currently got a successful installation of a hexbeam almost directly
> mounted atop a Alphaspid which is in turn mounted on a 2ft aluminum mast.
> This whole thing is solidly held on a AB1342 crankup. The aluminum mast is
> an accessory to the AB1342 and is part of the upper guying assembly.
>
> I'd like to add an M2-6M3 beneath the hexbeam. To do this I'd want to raise
> the hexbeam to provide 6-10ft of separation between the two antennas. The
> M2-6M3 would be very close to the rotor so no real issue there.
>
> My concern is that this additional 10ft of mast would be non-guyed and
> therefore any windload of the hexbeam would be on a 10ft torque arm and
> applied directly to the Alphaspid.
>
> Am I over thinking this or is this a problem?
>
> Thanks
>
> jim ab3cv
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