penguin phantom foam bildge

I'm replaceing the deck on my penguin phantom and have removed all the foam from the bilge as it was water logged.  luckily the wood in the stringers is still solid if a little damp in places (they must have put something either very rot resistent or treated in there).  Don't really want top replace the foam as it will just trap any water that gets in there in the future and I don't want to be removing the deck again!  Presumably the foam provided boyancy but I'm also wondering how much structural strength it provided?  the deck/bilge foam/hull combination probably created a fairly stong surfboard like structure with wooden stringers.  so the question is, do i need to replace the foam with ether more foam or some kind of rib structure or just leave it empty and glass on a new deck (preferable)? 


Posts: 9358

Date Joined: 21/02/08

Each to their own, but the

Thu, 2011-02-10 12:08

Each to their own, but the point of the foam is you can't flood it.

If it can't drain, then put drain holes in at the stringers and fill with bagged, closed-cell foams.

You really can't make sure that underfloor voids will never get penetrated, ie; poor seal, screw holes etc, and thats why you should make them free-draining.

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iana's picture

Posts: 652

Date Joined: 21/09/09

Does the foam add to the strength of the hull.

Thu, 2011-02-10 17:17

If it was poured in I would say yes. If it was cut to size and fitted then no. You are on the right track, a fair bit of research on this one is needed.

Posts: 1392

Date Joined: 08/01/09

Till, dont the baron hulls have a glass over foam bulkhead

Thu, 2011-02-10 18:19

setup in em. I am 110% sure I saw some pics of them

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Posts: 9358

Date Joined: 21/02/08

Maybe some do, my brother's

Thu, 2011-02-10 18:20

Maybe some do, my brother's didn't and neither did his mates.

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Posts: 1392

Date Joined: 08/01/09

never mind

Thu, 2011-02-10 19:31

was probably thinking about something else

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FEEEISH ONNN!!!