Hey Geoff,


5052 is good, and sort of available. Easy to work with, an used for
fuel tanks too, and can be welded.

It is just a formed "L" bracket you need isn't it? I have to wonder
why you don't go with marine grade stainless though. Gage-to-strength
versus aluminum would keep the weight aloft very close, and would be
the material of choice I would think.

What point or height are you going to mount it? Masthead? Spreader??

Take care.

Brian Lawson,
Bothwell, Ontario.
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On Thu, 02 Dec 2004 16:09:38 GMT, Geoff Schultz
wrote:

I recently purchased a Questus self-leveling radar mount off of Ebay.
Unfortuantely this unit was designed to be mounted on a backstay, and my
boat (a Freedom 40/40 with a carbon fiber mast) doesn't have one. I've
designed an adapter for it, which I will machine out of 3" round Al stock.

It seems that there's primarily 2 types of Al stock available: T6511 and
6061. The part will be painted. Which of these (or some other varient)
should I use considering the salt water marine environment?

-- Thanks, Geoff