IMHO I think the original F-12 Boom to Mast pate design was an issue in all
except the smaller C-3
well documented issue .
But as far as performance.... there performance was above par to manufactured
antennas at there tenure.
Wayne W3EA
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Jim Thomson
<jim.thom@telus.net>
Sent: Thursday, January 19, 2017 11:44 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Force 12
Date: Thu, 19 Jan 2017 15:37:14 +0000
From: william radice <k4owr@outlook.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Force 12
:::: people finally realized that Force 12 antennas, while nicely built, simply
don't outperform other antennas costing half the price. I've had a lot of them
and they all performed poorly.
BILL K4OWR
## Which f12 antennas did you have that did not perform ?
## One item that F12 exceled at was their infamous Boom to mast pair of
plates. I ran with their concept, and beefed it up some with several HB
versions of it. I used .375 inch thick
6061-T6 for both the vert + Horz plate. Then used the Dx eng super jumbo
mast clamps for the vert plate to mast.... and Dx eng SS .375 inch U bolts
and solid al saddles for the
Horz plate to boom. Bomb proof. The beauty of this F12 design is.... the
boom can tilt a huge amount.
## Every other boom to mast scheme I have seen both present and past is
cumbersome and time consuming. The latest version that f12 used to mount
their eles to the boom is extremely robust.
It uses .25 inch thick wrap around plates, instead of the older f12 multi
right angle version. New f12 version uses 20 x .25 inch rivets on all 4 x
sides.
Jim VE7RF
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