The bomb, of course, weighs over one hundred pounds. It is made with one end flattened, upon which it will stand, and in the early types its accidental discharge is rendered practically impossible by a sort of peg called a safety pin, which must be removed before the bomb is dropped. The use of depth bombs against the U-boats made fighting in the German submarines so dangerous and so much to be dreaded, that it is said, as the war drew to a close, all U-boat crews had to be forced into service, and that none of them expected ever to return and see their homes and friends again.
In the early days of the war the bombs were carried in cradles, and later in racks or run-ways. From most of the bombs the detonator, which would fire them, was removed; but some were kept ready for instant firing, near the stern of the ship. The early type of bomb was discharged by a length of wire attached to a float. The bomb itself sank, the float remained on the surface of the water and reeled off the wire until the pull upon it discharged the bomb. It can be readily seen that the depth at which the bomb was discharged would depend upon the length of wire attached to the float. Imagine what might follow if one of these bombs, set ready for discharge, should break loose from its case in a storm at sea.
Such a terrible accident did happen on the U.S.S. Remlik. The ship was groaning and tossing in a very heavy sea, for a severe storm was raging. She gave a lurch and pitched back with so much force that a wooden box, containing a depth bomb and securely fastened to the after deck, suddenly broke. The bomb rolled out of the box and began to bound back and forth across the deck as the ship lurched and pitched from side to side.
The crew seemed stunned, and no orders were issued for concerted action. The frightfulness of the situation was greatly increased when it was observed that the safety pin had dropped out. All expected the next time the bomb struck with force against the rail that the float section would be released and reel off enough wire to fire the detonator and utterly destroy the ship and all aboard.
But Chief Boatswain's Mate, John Mackenzie of the Naval Reserve Fleet, needed no orders. He saw what should be done and did not wait for some one to order him to do it. He could not pick up the bomb in his arms and throw it overboard, for it weighed too much, and even if he could this might be the worst thing to do. The ship was laboring and barely holding her own with no headway, although the engines were turning over for 8 knots, and the bomb would no doubt have exploded directly under the ship had it gone overboard.
Mackenzie had a plan, and the first step in it was to stop the bomb. He threw himself in front of it and tried to hold it by his arms and the weight of his body, but the weight and the momentum of the moving bomb were too great and he was pushed aside; but he had stopped its movement somewhat so that when it struck the rail on the other side of the deck it did not explode. He jumped for it as it bounded back from the rail and almost stopped it, but it seemed to those looking on that the hundreds of pounds of metal and explosives would roll over his body and seriously injure him. He escaped this, however, and slowed down the movement of the heavy bomb to such an extent that near the opposite rail he was able to grasp it, lying with feet and hands braced in the grating of the gun platform. Then to be sure that it did not escape him until help came, he turned it upright upon its flattened end and sat down upon the most destructive bomb used in war, on the deck, of a ship lurching at sea in a severe storm.
Then other members of the crew that had been watching him as if dazed ran to his assistance, and the bomb was soon placed in safety.
The commanding officer of the Remlik recommended that Chief Boatswain's Mate, John Mackenzie, be awarded the Medal of Honor. The report to the Secretary of the Navy was in part as follows:—
"Mackenzie in acting as he did, exposed his life and prevented a serious accident to the ship and the probable loss of the ship and the entire crew. Had this depth charge exploded on the quarterdeck, with the sea and the wind that existed at the time, there is no doubt that the ship would have been lost."
Mackenzie was awarded by the Navy Department the Medal of Honor, and a gratuity of one hundred dollars; but these awards are of little value compared with the greater reward which comes to him in the admiration and respect of all who read or hear the story of his heroic deed.