Recovering the Torpedo.
Should the safety key have been withdrawn, great caution must be used.
Drawing 5.
Tongs, for going round the upper part of the bolt, to take the place of the safety key, when once clasped and secured round the bolt, render the torpedo safe to handle; this could only be done from a boat. With the safety key in, there is no danger in hooking it inboard again by its own tow-rope, and hoisting up the buoys at the same time with a grapnel.