[TowerTalk] PST61 Rotor Reliability?

David Gilbert xdavid at cis-broadband.com
Tue Dec 12 16:31:59 EST 2017

I guarantee that those articles are not going to say anything about 
winds that rotate.  There is no such thing as "aerodynamic balancing" in 
the case of rotating winds.  Anything you add to the structure in an 
attempt to do so simply adds to the problem.

I truly do not see how this is so difficult to understand.  It's high 
school physics.

Dave   AB7E

On 12/12/2017 10:20 AM, Wes Stewart wrote:
> See the two part article, "Aerodynamic Balancing" by Dick Weber, K5IU 
> in the Summer 1994 and  Winter 1995 issues of Communications Quarterly.
>  On 12/11/2017 7:34 PM, Gary Schafer wrote:
>> I have from time to time seen it professed that mounting two antennas on
>> opposite sides of the mast will equalize the torque supplied by wind.
>> The only thing mounting on opposite sides of the mast will do is 
>> equalize
>> GRAVITY forces on the mast (that try to bend it over) which will be 
>> rather
>> small differences given only a few inches distance apart.
>> Torque is rotational. Both antennas are going to exert the same 
>> amount of
>> torque no matter which side of the mast they are on.
>> What am I missing here?
>> 73
>> Gary  K4FMX
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