Sleeving works, UST sells 20' x 2" x 1/8 wall steel masts with the lower
10' sleeved to 1/4". With a 2.5" od (what is "thick wall" and what is
the alloy and temper?) you potentially have a very strong mast. What
is the load? Try one of the mast calculators before sleeving. (ARRL,
K7LXC) or free by WD6P
http://www.math.niu.edu/KARC/mast/
Grant KZ1W
On 4/16/2013 8:31 AM, GW4BLE wrote:
I have a question concerning 'sleeving' (can't think of a better way to describe it) - I
have a 16' x 2.5" OD thick-wall aluminium tube that will be used as a stub mast,
would inserting 6' x 2" OD thick-wall aluminium tube into the bottom of the tube
add to its' 'strength' in any way or would it just add unnecessary weight?
Sliding it in makes quite a snug fit, but not exactly 'tight'
Steve
GW4BLE
Sent from my iPhone 4S
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