[Towertalk] mast strength

[W0UN--John Brosnahan]

At 01:18 PM 12/24/2002 -0600, Paul DeWitte K9OT wrote:


>Since schedule 80 is twice as thich as schedule 40 they are not the same
>strength.

Yield strength is a materials spec.  Both Schedule 80 and 40 are the
same material--so their material yield strength is the same.  But the
actual load they can handle is a function not only of the material yield
strength but also the wall thickness and diameter.  You need all three
to calculate the capabilty of a mast.