[TowerTalk] Thrust Bearing, etc: more answers from UST calcs

[Jim Lux]

On 2/9/13 11:21 PM, KM5VI wrote:
>>>   So the drag of a 4" tube is 1/2 that of the same length 1" tube, not 4x.
>
>
> The drag coefficient may be 1/2, but when multiplied by 400% more face area
> is the drag not 2x?
>

Doh.. yes..

4 times the diameter, twice the drag.