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  1. 02-07-2011 11:58 AM #10
    ebb
    ebb is offline Registered User ebb will become famous soon enough ebb will become famous soon enough
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    Excellent, excellent

    Jerry,
    Always good to have a Steve Koopman on one's side!

    Dave Gerr (I bought his book last year0 probably has a formula for the downward thrust of a mast.
    7000 seems more than adequate. Not being sarcastic at all.

    That arch cannot be flexed, at all.

    Therefor you could open up the bukhead even more. Just enough to brace the ends of the beam.
    Just mentioning that.
    I think what you have come up with
    is very nicely proportioned indeed.
    Looks and feels right.
    Last edited by ebb; 02-12-2011 at 07:57 AM.
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