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In a message dated 2/26/04 1:36:46 PM Pacific Standard Time, flydeep4u@yahoo.com writes:
sure it's cute,,but can never work,it has no pressure vessel desing,,,besides,,it's not really a submarine,,it's just an expencive dry suit with motors for flippers.. What you're describing is what's known as a "dry ambient". It doesn't have to have a pressure hull because the pressure inside is the same as outside. In that respect, your analogy to a dry suit with thrusters is technically correct and you'd be bound to the same depth ranges as SCUBA. But it *is* a submersible, just not a "1-atmosphere" submersible and a scaled up version would be perfectly viable, not to mention hydrodynamically efficient. There are multiple examples of both wet and dry ambients in the picture gallery. And it is generally speaking the least expensive, least complicated, least technical way to get into a submersible. Each type has its advantages, disadvantages and place, and trying to compare them directly is apples and oranges. Warm Regards
Shawn
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