Foam in Vintage glass boats???

[Boilermaker]

When did the use of floatation foam in the manufacturing of fiberglass boats start??? And was it used by all Manufacturers??? <br />I am asking because I inherated my dads 1971 Westwind (Aquasport) 18ft boat, and am wondering if it has foam or not??? <br />I think the flooring is getting a bit spongie, and I'm trying to figure out what will be involved if I deside to redo the sub-structure next year (I replaced the transome this year).<br />Thanks

 

[bhalsdorf]

Re: Foam in Vintage glass boats???

I don't really know when or who used the foam, but my 1958 true Ski had foam under the floor.

 

[CTD]

Re: Foam in Vintage glass boats???

seems like they started requiring flotation about 1971 or so. Memory isn't as good as it once was so I could be off a little.