Date: Thu, 18 May 2017 21:21:56 -0400
From: <john@kk9a.com>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Yaesu mast clamps
<A solution to what? They are adjustable for various size masts and they
<<grip it well.
John KK9A
To: towertalk@contesting.com
Subject: [TowerTalk] Yaesu mast clamps
From: Roger D Johnson <n1rj@roadrunner.com>
Date: Thu, 18 May 2017 16:32:36 -0400
Does anyone have a good solution to the cast aluminum mast clamps used
on the G-1000 rotor.
73, Roger
## the mast clamps on both my OR-2800 are fubar. The K7LXC versions are
much better.
The K7NV version is the ultimate solution. Both the K7LXC and K7NV versions
have to be
ordered for a specific mast OD, not adjustable.
## I have the K7NV version...in 2 inch..for my small K7NV prop pitch. Its a
round steel tube,
slit down its length, and welded base. The open slit has lips running
lengthways welded on....with
6 x holes. Just pinch it in the middle with vice grips..and no way in hell can
a mast ever slip. The
surface area is massive, 36 ++ square inches. Total surface area on the
OR-2900 mast clamp
is next to nothing. Baffles me why M2 keeps making the damn thing... its ill
conceived, not engineered.
## A mast clamp that will handle anything from a 2-3 inch mast can easily be
designed, with out having
to resort to the 4 x rows of teeth method that the OR-2800 clamp uses. The
OR-2800 clamp doesnt work
since the pressure points are all on the tips of very few teeth.....which will
not bite into a CM mast anyway.
Yaesu has it figured out for an adjustable mast clamp.
Jim VE7RF
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