The vertical part near the middle of the submarine is the sail. If you're talking about the fin at the very back it's the rudder.
Goalkeeper, right back, left back, centre back, midfielder, wing forward, right wing, left wing, centre forward, striker,
The back of a bird's wing. :D
The submarine is manned by the crew, and crew members are called submariners.
It is just called the wing.
If you are referring to the distance from wing tip to wing tip, it is usually called "wingspan".
The 'helmsman' steers a submarine.
when bats sleep there wing will grow back.
Fulton designed a submarine called Nautilus.
the wing flap
Submarine mountains that were once active volcanoes are called seamounts.
An aircraft wing that is angled back.
They are also known as side backs or side defenders. Usually teams have four defenders. Left Wing Back --- Center Back --- Center Back --- Right Wing Back. Like this.