[TowerTalk] masts.

[Rick Karlquist]

jeremy-ca wrote:
> There are several grades of fence posts; the cheap stuff is Schedule 15
> and
> other choices go up to 83,000 psi yield strength.
>
> The 2"  (1.9" OD) 40+ that I use has a yield of 50,000 psi and a bending
> moment of 14050 lb". Going up to the 2 3/8" OD bumps the bending moment to
> 24405 lb". Pretty healthy specs IMO and a good choice when DOM or chrome

The 1.9" OD is "1.5 inch iron pipe size" and the 2 3/8" OD
is "2 inch iron pipe size".

Rick N6RK