Round Numbers

The Russian navy undertook an odd experiment in 1871: circular warships. With their broad, flat bottoms, the Novgorod (above) and the Vice Admiral Popov (below) were intended to bear heavy guns into shallow coastal waters where more conventional warships could not go. But without keels they were slow and difficult to maneuver, and in cross currents they tended to spin. They served briefly in the Russo-Turkish War of 1877-78 but were relegated as storeships in 1903 and scrapped nine years later.