Kasatka-class submarine Som-class submarine Forel single unit/one off unit (class of its own) Osetr-class submarine Pochtovy Minoga Akula Karp-class submarine...

The Osetr class were a group of submarines built for the Imperial Russian Navy during the Russo–Japanese War. The boats were ordered in the 1904 emergency...

the Imperial Russian Navy's Osetr-class submarines, the first of which was Lake's Protector. The Kaiman-class submarines were also designed for Russia...

constructed submarines. The Kaiman class was designed by the American submarine pioneer Simon Lake as enlarged versions of his Osetr class with more torpedo...

designing submarines for the Austro-Hungarian Navy, Germany's Kaiserliche Marine, and the Imperial Russian Navy (Osetr- and Kaiman-class submarines). He lived...

Navy, which became the Osetr class. After receiving the first submarine, Russia ordered another five boats of the Osetr class on 10 May 1904, which were...

Petersburg and Berlin. Both Russians and Japanese were interested in the Osetr-class submarine which had been designed by Simon Lake but which the United States...