[TowerTalk] Aluminum mast

[Bruce Ferratt]

Hello and thanks for letting me post a question.
How strong is a solid aluminum mast compared with a walled/hollow mast?
I secured a solid, round 12' aluminum mast 6061-T6511 grade.  What is the likelihood of bending when loaded with a TM-33A and VHF 2m/440 vertical at a rated 70mph wind load in Northern Virginia?  8ft of mast will be exposed above the point of the tower peak (Rohn 25G), with about 4 ft inside the tower to rotor plate.
Thanks 
Bruce
K4BOF