[TowerTalk] Add on 3" mast brake?
Grant Saviers
grants2 at pacbell.net
Mon Nov 14 14:21:15 EST 2022
I should add that the brake isn't needed for start-stop braking, the
RT21 does than well. It is intended to prevent wind driven oscillations
when not being turned.
On 11/14/2022 10:24, Charles Morrison wrote:
> IDEA: Auto/truck disc brake, but instead of hydraulic, make it electric....
> ramp it closed in parallel to the rotor ramping down.
>
> On Mon, Nov 14, 2022 at 1:18 PM Grant Saviers <grants2 at pacbell.net
> <mailto:grants2 at pacbell.net>> wrote:
>
> My 80m 2L beam is destroying rotators (sm PP and Orion 2800). So far no
> problems with the beam.
>
> What is happening is any backlash in the gear train leads to rotational
> oscillations from the turbulent high wind at my QTH plateau/ridge and
> results breaking gear teeth off. The 375# antenna and 100ft elements
> provide the momentum/jerk at the stop of movement.
>
> So am looking for designs of a secondary brake I can fit inside Rohn 65
> and retrofits to a 3" mast without taking the antenna down and mast out
> (big crane work).
>
> Any experiences, products, ideas, designs welcome. My shop is pretty
> much able to make anything in metal.
>
> Grant KZ1W
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