Adding Sponsons to Transom?

Discussion in 'Boat Yard Basics' started by bostick29412, Mar 23, 2010.

  1. bostick29412

    bostick29412 I Love!

    I'm considering adding some short, ten inch or so, sponsons to the transom of my project skiff, thinking the extra flotation aft of the motor mounts might help offset my 200 lbs when I'm up on the poling platform. Has anyone done this? Please post your thread if you have - thanks in advance.
  2. firecat1981

    firecat1981 BBA Counselor

    Never really seen it done except on aluminum boats, in fiberglass I'm not sure if I would because I don't think it would be easy to tie it into an existing structure. That Being said if it's a project boat and you don't mind putting in alot of work it can be done. But you can probably get the same benefit by relocating some wieght (batteries, tanks, cooler...) foward in the boat.
    It would help alot if we knew what kind of boat and if you posted some pictures.

  3. Brett

    Brett > PRO STAFF <

    200 lbs eh?

    62 lbs per cubic foot averaged weight of seawater/freshwater.

    200 / 62 = 3.22 cubic feet

    assume 6 inch draft and you'd need 6.5 sq. ft. of additional bottom area to balance it.

    Sounds like too much work, might be time for a bigger boat. :eek:
  4. bostick29412

    bostick29412 I Love!

    Ahem. I'm a very NIMBLE 200 lbs.  ;D

    I don't think it will be worth all of the extra effort to add them on this one, I appreciate the scientific evidence supporting this conclusion.