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I saw Gary's red sub in Michigan last year, and he used a scuba tank to
pressurize his motors. The system looked very simple. If you are using oil
filled motors, do you need air pressure? I've heard about using a flexible tube
filled with oil which is exposed to the water, and the deeper you go, the more
pressure is applied to the tube, making the oil filled motor housing equal with
the outside pressure. I haven't seen this yet, but it sounds pretty good. There
have been several threads on this before. Check the archives. Frank
D. See what's free at AOL.com. |