[TowerTalk] High VSWR

[Robert Harmon]

I agree.  Good explanation Patrick.
Aerodynamic balance is the key.  Jim, VE7RF was explaining the same point about  the CG (center of gravity)

What I don't understand is why the manufacturer didn't achieve the aerodynamic balance in their design.  

Bob
K6UJ



> On Sep 1, 2019, at 5:36 AM, Patrick Greenlee <patrick_g at windstream.net> wrote:
> 
> Mounting the boom to the mast/rotor at the center of the antenna's aerodynamic drag greatly reduces/eliminates wind induced torque. Two basic ways to achieve aerodynamic balance: 1. select the boom mounting position to balance drag and or 2.  add a drag device to provide balance (fin etc.)
> 
> Patrick        NJ5G
> 
> On 9/1/2019 7:13 AM, dj7ww at t-online.de wrote:
>> That is a bad idea, the torque force on the rotor under high winds will become much larger.
>> 
>> 73
>> Peter
>> 
>> 
>> 
>> 
>> 
>> -----Original-Nachricht-----
>> Betreff: [TowerTalk] High VSWR
>> 
>> ##  with  more  boom on the  shorter ele  side.....vs  the   longer  ele  side, the required  rotor
>> torque  will  be  sky high.   They  have  mounted the  boom  at its   CG.   They  should have
>> mounted at  center of  boom,  and  added  a counterweight  at  light  end  of  boom.
>> 
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