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Re: [PSUBS-MAILIST] Joe's sub and Boyle
Once in a while I wonder about
questions asked on the list. I had a "moment" commuting to
Joe - are you still at odds regarding the design of your
cockpit and sloshing water and Boyle's Law?
Magical Child will be admitting water into the cockpit
just like your boat. I realized that the easy way to answer your dilemma
may have been to point out that MC's trim water will be admitted into the
cockpit BEHIND a bulkhead behind the pilot's seat. A simple vent (hole) at
the top of the trim tank/cockpit bulkhead will allow displaced air to
flow back and forth to and from the cockpit and the tank.
The water will simply be behind MC's pilot rather than at
his or her feet. Why doesn't Boyle affect the trim tank? The cockpit
is sealed from ambient water (not pressure). There IS no water being
admitted or expressed from the cockpit (except for initial trim adjustment just
under the surface).
The cockpit regs compensate the cockpit AND the
variable trim tank, which is merely a physical extension of the