Not only the depth bombs, but everything else on her decks were lashed.
Accordingly they went to the ship, and each taking a small sack they filled them with depth bombs.
Other bombs known as "depth bombs" are fitted with flanges that revolve as they sink, causing an explosion at any desired depth.
But the destroyer was attracted to the spot by the gulls waiting for possible food, and let go two or three depth bombs, for luck.
In other depth bombs there was a valve operated by the pressure of the water.
Depth bombs were dropped by ships of war wherever it was thought a submarine might be lurking beneath the water.
In these days casual loungers along docksides may be suspected of depth bombs and high treason.
Depth bombs were rolled off the stern of the destroyer and also thrown out from the sides of the vessel by means of mortars.
So powerful were these depth bombs that the destroyer had to travel at high speed to get out of range of the explosion.
The dots represent273 patterns of depth bombs dropped upon the U-boat.