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Thread: EBB's PHOTO GALLERY THREAD

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  1. #11
    Join Date
    Sep 2001
    Location
    San Rafael, CA
    Posts
    3,621
    foam is the filler in the clam shell, it isn't structural. There's very little of it. The rudder is rather narrow, right? The rudder is as bouyant as a piece of lead, or bronze. As I intimated above, this is not a good design, A good design is the original rudder. The 6 or 7 feet of 1" bronze shaft-rod at about 3# a foot doesn't make the original a floater, either. If the original rudder had been made totally out of wood, it would have been a floater. I have not heard that a lite foamfilled neutral rudder, like those that stand alone behind a fin, is desirable on the end of a keel. Would like to hear a discussion on this!!!

    A rudder with two or three narrow triangles of flat bronze bar welded to the sides of the rod instead of allthread drilled thru the rod - the rest made up of divinycell, glass and epoxy would make a good substitute - come in at about the same weight - easier to maintain - ten times stronger - than the original. IMCO.

    A two part socketing rudder like the one above could be designed at the cost of more weight. A full size working model out of wood would be made first.

    Will make a valient attempt at finishing the present project. I advise everyone against it. Unless you make a compleat working model first! If the fiberglassing is successful there hopefully will be some photos.
    Last edited by ebb; 10-14-2003 at 06:46 PM.

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