10 mph underwater
20 mph surface
They were used by submarines to navigate when not in open waters, They were also used by submarines and anti-submarine ships to locate enemy submarines.
Tanks and submarines were the two military vehicles that (to the best of my knowledge) were introduced during World War 1.
They were submarines (German Untersee boat) used to sink ships carring men and materials to war fronts
it didnt. noob.
1. Poison Gas 2. Tanks 3. Submarines 4. Machine Guns
Average: 20 knots surfaced 09 knots submerged
Yes
During World War 2, it is reported that over 2,000 variants of Japanese Submarines were used during World War 2. Out of this, it is estimated that 10,000s were likely to be used during WW2.
Wolfpack
326
Underseaboats.U-boats
USN Gato class subs in WWII could about 20 knots surface, and about 9 knots underwater.
The largest subs in WWII were the Japanese I-400 Class subs; they could launch 3 airplanes.
The British lost 76 submarines during WWII.
Both sides, the Allies and the Axis, had submarines when WW2 started.
Underseaboats.U-boats
52