| 14-in. | Whitehead, | for torpedo boats and small cruisers. |
| 18-in. | ” | for destroyers and large ships. |
| 24-in. | ” | for defence of channels. |
This last torpedo has an effective range of over 3000 yards. It is not, however, carried on shipboard.
The Whiteheads are identical with those in the British service. So, too, are the above-water tubes. The submerged ones are of Elswick pattern—Mark I., which was not satisfactory at high speeds in the Fuji, Yashima, and Shikishima; Mark II., which delivers fairly well at all speeds in the later ships. All ships that carry submerged tubes—that is, all first-class battleships or cruisers—have four fitted: two forward on the broadside and two bearing 45° abaft the beam, just abaft the after barbette.
Above-water tubes are condemned, and several of those in existence were under orders of removal when the Russian war broke out.
Above-water bow tubes were condemned on account of the seas that they took in. As such as exist in armoured vessels are protected by 6-in. armour, they did not improve seaworthiness, the weight in the extreme bow being inconvenient.
PLAN OF CIRCUITS OF THE ELSWICK TUBE.