On the surface, twenty knots is a very good speed (maybe a little too good) for a World War 2 sub. Submerged, speed fell off considerably because the hulls were not streamlined as they were after the war. Only Germany toward the end of the war developed submarines with streamlined hulls which made them very fast when underwater. One of them was a small sumbarine which was powered by hydrogen peroxide (rocket fuel) and it could do twenty knots submerged but was extremely dangerous to operate. The other was diesel-electric with a streamlined hull and other improvements which gave it a submerged speed of sixteen knots, a very fast underwater speed for WW2.
A U-boat was a submarine used by Germany in World War 1 and World War 2.
United States Submarine Operations in World War II has 577 pages.
submarine are important because it help alot of people doring world war 1.
underwater submarine
because he was assassinated by serbians 2 other reThe assassination in Sarajevo set into motion a series of fast-moving events that eventually escalated into full-scale war. asons why world war 1 started were: Germany's unrestricted submarine warfare (U-boats), and the zimmerman note
The oldest boats in the the U.S. inventory (S-class) were pretty slow, only about 14.5 knots surfaced and 9 knots submerged. As the war and submarine designs advanced, surface speeds improved from 15 knots to 21 knots, with an averaage of around 19 knots for most. Submerged speeds remained steady at around 9 knots.
Average: 20 knots surfaced 09 knots submerged
USN Gato class subs in WWII could about 20 knots surface, and about 9 knots underwater.
U. S. submarines in World War II had a top surface speed of around 20-knots. Submerged, their top speed was around 9-knots, although at that speed they would exhaust their batteries after one hour and have to surface to recharge them.
A U-boat was a submarine used by Germany in World War 1 and World War 2.
United States Submarine Operations in World War II was created in 1949.
United States Submarine Operations in World War II has 577 pages.
The submarine.
It was a submarine in World War 1 or 2
World War 1
Yes.
It was a submarine in world war 1 or 2