In the early 1950s a modified M-1 jet-turbine engine of 4000 hp, designed by Sergei Kolosov (head of the OKB-16 based in Kazan) was installed on a torpedo boat as a device for additional acceleration. Two-year operational trials of the vessel proved that turbine engines can be effective in this application. As a result, in May 1954 the Council of Ministers of the USSR issued a order establishing Special Design Bureau of gas turbine units for the Navy. Since then the enterprise based in Nikolaev has evolved into Mashproekt Scientific-Industrial Enterprise named after Kolosov. Today, its spectre of activities encompasses research-and-development of gas turbine units for industrial applications and the Navy, assembly of prototypes of these units, tests, production and deliveries to customers.