RE: [PSUBS-MAILIST] Large ballast volume

["Jens Laland" <laland@artematrix.org>]

Brian and David

The 10-pound MBT blowing system is used to remove water from the main,
ballast tanks when the boat is on the surface. It completes the work
started by the 600-pound MBT blowing system, thus saving high-pressure
air.

Ref. "Submarine Air Systems", NAVPERS 16164 (WWII Fleet Type Submarine):

http://www.maritime.org/fleetsub/air/chap5.htm#5A

** My ship used a low pressure blower once a source of fresh air was
** obtainable to conserve compressed air.

Best regards,
Jens Laland





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