They're not - they are pressurized upon submergence to maintain a positive pressure in the boat to detect any hull breaches. Any seal leak or breach, no matter how small, will immediately register on the boat's pressure board.
treasured
So they dont get the Benz which is basically bubbles in your intenstines.
1. Ballistic submarines 2. Attack submarines
Boats, Subs, Submarines, Home.
Yes, North Korea has submarines
Submarines - poem - was created in 1917.
One of our Submarines was created in 1982.
Dallas Submarines was created in 1920.
Argentina had diesel-electric submarines while the British had nuclear-powered submarines.
All submarines can sink. Some can return to the surface.
submarines dont sail idiot
USA has the most nuclear submarines