I have installed 27 cubic feet of styrofoam beneath the decks of Carpe Ventum (M-17#604), and I have also installed a Whale Gusher 10 bilge pump, with the pick-up in the bottom of the bilge. It's located in the cockpit about a foot forward of the aft cockpit locker. The pump handle is on a tether and kept in the aft locker, as the pump would be useless without the handle. The product of combustion of some of the pour-in foams can be deadly. Something to consider. Also, with the in-place-foam, access to that area for future maintenance could be difficult, if not impossible.

----- Original Message -----

From: MC Carpenter

Sent: Tuesday, December 02, 2003 10:52 PM

Subject: Re: M_Boats: Re: previous board diagram

perhaps you can give me a simple solution for this next project.

I have found several different sources of closed cell foam, some pour in and some cut to measure blocks and boards, that I plan to use to achieve positive flotation, Some foam is labeled 1.7 and some 2.2 lbs per cu ft. The heavier types of closed cell I do not plan on using.

Compared to a cubic ft of air, what is the best way to find the positive floatation mark on the boat to keep the height of the cockpit seat level with the outside water level but no deeper. For example: suppose the worst case scenario and the boat is completely filled with water (saltwater that is) I want the water to drain out to the level to or less than the cock pit seats.