On Sun, 09 May 1999 14:12:05 -0700, Kurt Andress wrote:
> Freestanding towers are different from guyed towers.
>
> I think you'll find that the crankup tower is limited by the bending stress
> at the
> bottom of
> each section.
>
> It is likely that the stress at the bottom of the top section will always
> exceed the
>
> stress caused by the mast connection to the tower.
> In that case, moving the rotor down the tower will result in no increase in
> tower
> capability.
Thanks, Kurt. However, I wasn't looking for increase in tower
capability. I was looking to unload some of the side stress of the
short coupling to the rotor. It would be nice to be able to transfer
bending moment to a couple of thrust bearings, instead of one thrust
bearing and the rotor housing.
Gary
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