1
In the pursuit of the U-boat the airplane was also extremely effective.
2
I wished to cruise with the American destroyers in their U-boat operations.
3
They kept both the U-boat's deckguns smoking; but the shots went wild.
4
A fourth destroyer of ours got the U-boat which sank the liner.
5
Yet occasionally the deadly U-boat claimed one of these as a victim.
6
At any rate, he went back to his U-boat and the undersea.
7
She was lucky not to meet with a U-boat during her wanderings.
8
I must see whether I can't invent a set of U-boat exercises!
9
Six years later the Carpathia was sunk by a German U-boat.
10
The result was one U-boat apparently sunk but one merchantman torpedoed.
11
The destroyer was then steaming away with the U-boat in tow.
12
The result of these methods was the gradual destruction of the U-boat menace.
13
There is no doubt now about the fate of the U-boat.
14
They were all used up since the battle with the U-boat.
15
The two convoys were now busy with another U-boat that had attacked them.
16
The U-boat which sank us had been out for six weeks.