Welded aluminum tangs on multihulls

Discussion in 'Multihulls' started by Charlyipad, Apr 10, 2019.

  1. Charlyipad
    Joined: May 2014
    Posts: 226
    Likes: 10, Points: 18, Legacy Rep: 57
    Location: St Simons is ga

    Charlyipad Senior Member

    Hi folks, I notice that US Spars uses big fat welded tangs on the Fontaine pajots, and other cats. Does anyone know about them? Are both port and starboard tangs really one piece of aluminum that spans the width of the mast, instead of a compression tube, and that is just welded up on both sides at the seam where the hole was cut in the mast to accept it? And what about the forestay? Is it mechanically fastened to some kind of backer plate on the inside? Surely they aren't just welded up to the exterior shell of the mast? Thanks!
  2. luff tension
    Joined: Aug 2010
    Posts: 65
    Likes: 7, Points: 8, Legacy Rep: 10
    Location: auckland

    luff tension Junior Member

    Typically the tang you see is fabricated so the bit you see has flanges on the inside face of the mast and it is inserted from inside the mast and welded in place on the outside. Ill find a drawing.
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