Submarine design

device which allows a submarine to operate submerged while taking in air from above the surface

propulsion system for submarines which operates without access to atmospheric oxygen

portion of a ship

device that releases oxygen via a chemical reaction

compartment within a boat, ship or other floating structure

valve fitted in the bottom of a ship's plating

Waterproof superstructure of a submarine.

structural and hydrodynamic component enclosing the vessel

sensor on a submarine which functions similarly to a periscope without requiring a periscope tube

measures of a submarine's ability to operate underwater, used as design parameters