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Rare (there was only one) OSGA-25 'Express' Soviet high speed catamaran passenger. The first publication of a catamaran in 1934, final testing in October 1939. April 17, 1940, was used to transport passengers between the cities of Sochi and Sukhumi. Max speed (without passengers) : Knots Max speed (the load) : Knots Cruising speed : 37.8 Knots Material hull textolite and steel mesh in several layers Full load displacement : 42 t Main power system (ex aviation engines) : 2 X 1050 hp Secondary
