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Paul Kreemer wrote: > Hey, I really did spend five minutes on that drawing. :-) I'd have taken a lot longer and had all the lines curved randomly. You did good work. > But you sometimes see that kind of a mini conning tower on > submersibles, just to improve access to the hatch when there is some > surface chop. It just drains as you surface so there really isn't > any extra weight up there. It's just that it has to drain at the same rate that it rises out of the water. > Wasn't Joe talking about using plywood? > If so, I'd say that submerged the buoyancy from the conning tower > would actually provide a righting force - along with a lot of drag! I'd like to know the density of fiberglassed plywood before I said that. > Anyway, I just wanted to have some kind of a sketch to look at while > we talked about this. That was a very good idea. Sometimes we may be visualizing different things. Mike |