[PSUBS-MAILIST] syntactic foam

[Sean T. Stevenson via Personal_Submersibles]

I only just now looked up the trawl floats.  I notice that they have a
depth rating which may match what you need, and you may also be able to
take advantage of the form factor, instead of viewing it as a
restriction...  If the floats are available as spheres with a through
hole, what about mounting an array of them down either side of your boat
on a round bar which is part of the superstructure to serve double-duty
as hard fenders?  Placing them outboard like that would increase your
surface stability as well.

Sean


On 2015-11-17 14:03, hank pronk via Personal_Submersibles wrote:
> Sean,
> I have looked at building steel buoyancy tanks- they are just to heavy
> to be effective.   I am trying to keep the sub as light as possible and
> trawl floats are better than 50% buoyant to weight.  Unless there is a
> serious risk to using trawl floats, I think they are the most  logical
> and cost effective choice  at 3 dollars per lb of buoyancy .    I will
> also have  substantial MBT  volume to offset failed trawl floats.    If
> I am wrong, please correct me, I would love to have steel tanks,  that
> is right up my alley.
> Hank