My good friend Doug, VK3UM uses a ring gear from a Centurion tank at the
base of his tower supporting a 30' dish. The gear is 7' in diameter and
rotates very smoothly with the original 28VDC motor/gearbox assembly. There
is no backlash at all and with PWM control of the motor rotation speed is
easily controlled. Doug's hilltop installation has survived a number of
storms without problems despite the 30' Kennedy dish catching wind at the
top of the tower.
I see no problem putting a self supporting HF tower on such a ring gear and
then rotate the whole thing.
The guy in VK3 who sold the ring gear to Doug had another 5 of them tucked
away in his garage when we were there.... pity they sit so far away from SM2..
73/Peter SM2CEW
www.qsl.net/sm2cew
At 03:55 2001-08-29 , you wrote:
>
>Has anyone ever used a large gun turit to sit a tower onto and then turn
>it through tower rings.
>If the tower was self supporting no rings would be needed.
>
>
>Jack
>wb4roy
>
>
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>Trylon Titan towers, coax, hardline and more. Also check out our self
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>
>-----
>FAQ on WWW: http://www.contesting.com/FAQ/towertalk
>Submissions: towertalk@contesting.com
>Administrative requests: towertalk-REQUEST@contesting.com
>Problems: owner-towertalk@contesting.com
>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
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