On Circular Ironclads
E. J. Reed · Royal United Services Institution Journal · 1876
ON CIRCULAR IRONCLADS.circular ironclads of Russia, or.Popoffkas, hare quite a different form of section, the bottom of the rcsscl being an extended planc surface, which is connected with the edge of the deck by o quadrant of a small circlc.With this form of section great displaccnient is obtained on moderate draught of matcr.Tho deck of thc circular ship is formed in section vith such curvature as to givc in a ship of 100 feet in diameter a round-up of about four fcct.Then? are two Popoffkas already built, namcd rcspectidy the ' I Xovgorod," Fig. I, and the Ft.ins.