[TowerTalk] Torsion and masts

[K7LXC@aol.com]

In a message dated 98-07-03 11:40:13 EDT, tao@skypoint.com writes:

> I have heard of persons using an automobile drive shaft coupling in a long
>  tubing-mast arrangement to provide some torsion relief to the tower and
>  rotator. In the lore that was passed along to me it was said that people
>  used the couplings from BMW drive shafts. Perhaps others on TT have real
>  data and not just "oral history" about such use.
>  
       It's in Dave Leeson, W6NL, ex-W6QHS's book, "Physical Design of Yagi
Antennas".

Cheers,  Steve   K7LXC

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