I just purchased a tilt-over mast that I'd like to erect:

The base section begins with a 16"-square piece of 1/2" steel with four
holes on 12" centers and is welded (with four pieces of steel, sorta
like rocket fins) to a pipe which rises 17.5' to the pivot point.
The tilting part extends 16' further. All of the above pipe is 2 3/8"
in diameter, but a smaller-diameter pipe (for mounting a rotor?) sticks
out the top end of the tilting section another foot or two.

Can someone suggest how big a blob of concrete and how much rebar I'll
need at the bottom to erect this mast to be freestanding?
--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)