Quote:
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Originally Posted by Dr.Sid
Quote:
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Originally Posted by ASWnut101
How? Don't they use the air to push out the torpedo?
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AFAIK no .. air pushes water, water pushes torpedo. |
The air used is then vented BACK into the pressure hull. Otherwise it would make a heck of a lot of noise as it floats to the surface and expands. Sooo.. as air is vented inboard, the pressure in the boat increases. You perform an air charge to lower pressure in the boat. You will reach a high pressure limit in the pressure hull before you reach a air main low pressure conditon requiring an air charge.
I never understood the need to ventilate to do an air charge. The compressors are in the pressure hull and it is a closed system. You have to do them periodically due to the numerous air leaks thougthout the boat.