Date: Tue, 21 Oct 2014 14:10:38 -0400
From: K7LXC--- via TowerTalk <towertalk@contesting.com>
To: towertalk@contesting.com, maflukey@gmail.com
Subject: Re: [TowerTalk] FW: Difference in TailTwister and Ham 4
torque values
>>> My question, and I have searched, what is the difference in
starting/running torque between the Ham 4 and TailTwister?
> There is no difference in torque output between the Ham IV and the Tail
Twister.
Wrong. On page 154 in my UP THE TOWER book, the comparison table of
rotators has the Ham IV with 800 inch/pounds of rotating torque while the T2X
has 1000 inch/pounds - a slight improvement. These are manufacturer's
specs.
> Both use the same drive motor and running gear ratios. The Tail
Twister has a stronger rotor housing, improved mounting fastener
arrangement, and a stronger brake wedge setup.
In some instances, they use the same parts.
Cheers,
Steve K7LXC
TOWER TECH
and
_www.championradio.com_ (http://www.championradio.com)
Cell: 206-890-4188
## To really do it right, take the inch lbs value.... and divide by 12.... to
get ft lbs. Then compare
that to your typ tq wrench..and u will see that both the ham-4 and tail twister
really don’t have a lot of tq.
Start up tq is really a myth. It only last 1-3 secs... and is caused by the
high start up current in the
motor itself. I measured several of these small dc and ac motors..and they
typ have a start up current
of triple the running current.
Jim VE7RF
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