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Old 02-25-19, 08:19 PM   #12
shipkiller1
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That's not quite how it works.


Compressed air (2000psi) is shot into the impulse cylinder. This moves the piston and it's attaching tail rod. This tail rod is connected to another piston located in the 'impulse tank'. This moves water from the impulse tank into the torpedo tube, through the 'slide valve' located in the torpedo tube, ejecting the weapon.

Compressed air never leaves the inside of the boat.


The US has not shot compressed air into a tube since the 50's.


This is only on the 688 class submarines.



SSN-21 (Seawolf), SSBN-726 (Ohio) and SSN-774 (Virginia) use a Turbine system.
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