Fuel tank on Stainless Steel Brackets

Discussion in 'Boatbuilding' started by ixplorer, Sep 29, 2012.

  1. ixplorer
    Joined: Jun 2011
    Posts: 17
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Auckland NZ

    ixplorer Junior Member

  2. Agl marine
    Joined: Sep 2012
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Malta

    Agl marine AGL

    Tank reinforcement

    An easy fix is if you create a box frame using strips 1"x 1" or thicker to form a frame surrounding tank screwed into base, then strap it down tightly.
    You could then pass a ratchet strap beneath two strips across tank to hold it firm in place with ratchet on top.

    I'm sure there are many other ways but I don't suggest you use thin pieces of sharp metal as these may very easily puncture tank when under way.
  3. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 491, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    I disagree, strapping has been used for many years with great success. 304 stainless will work if you stay in fresh water, but if in salt use 316 or preferably 316L stainless. You can "roll" the edges if you feel the strap might cut into something, but the usual route is to provide padding under the strap, such as rubber or neoprene.
  4. ixplorer
    Joined: Jun 2011
    Posts: 17
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Auckland NZ

    ixplorer Junior Member

    The strap would never be placed in a position that would be harmful, direct line of a corner etc... but what i dont get is where the straps sit, what the tank sits on etc.

    I am also putting a bulkhead into the same central cavity of the boat as well as the tank, and can put the bulkhead anywhere and the tank any size, i'm estimating about 30 gal.

    I know the bulkhead is not to sit on the hull but on a "foam" strip which will sit on the hull. So what does the tank sit on ? Even though petrol weights less than water [71%] the tank would probably negate that meaning the weight would be 1:1 at a guess. Thats considerable weight, and not sure how to position it and on what... images would be helpful if anyone has a record of their tank addition.

    Thanks heaps

  5. gonzo
    Joined: Aug 2002
    Posts: 15,818
    Likes: 1,221, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    If you have an aluminum tank, stainless is a bad choice. It will create electrolytic corrosion. Aluminum straps are a better choice. With plastic tanks it is not a problem.
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.