For US Navy submarines, the Captain of a submarine (or the Officer of the Watch) will control things from the con of the boat. The use of "con" is short for "control" in this application.
The submarine is manned by the crew, and crew members are called submariners.
The 'helmsman' steers a submarine.
sea wolf pilothouse
The monstrous rogue wave took the pilothouse overboard.
Fulton designed a submarine called Nautilus.
The USN's submarine force in WWII was called the SILENT SERVICE.
The H. L. Hunley was the name of the Confederate submarine that was the first combat submarine to sink an enemy ship.
submarine
A submarine earthquake causes a tsunami.
Nautilus
fairwater planes
bridge