NAVYPEDIA

Photo

Okean as survey vessel

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Мурман [Murman]	90	201	194 Yd, Leningrad	5.1934	1.11.1935	3.1937 // 1940	survey vessel 12.1945
Океан [Okean]		202	194 Yd, Leningrad	1934	1.1936	8.1936 // 6.1942	survey vessel 9.1945
Охотск [Okhotsk]		203	194 Yd, Leningrad	6.1934	1.11.1935	4.1937 // 6.1941	survey vessel 9.1945

Technical data

Displacement standard, t	2375
Displacement full, t	Murman: 3700 Okean, Okhotsk: 3200
Length, m	78.8 wl 80.6 oa
Breadth, m	Murman, Okhotsk: 13.0 Okean: 12.0
Draught, m	5.60
No of shafts	1
Machinery	1 VTE, 3 boilers
Power, h. p.	2400
Max speed, kts	13
Fuel, t	Murman: coal 1000 Okean, Okhotsk: coal 870
Endurance, nm(kts)	2800(13)
Armament	Murman: 3 x 1 - 130/50 B-13, 4 x 1 - 76/28 8K, 2 x 1 - 12.7/79, 152 mines Okean: 3 x 1 - 130/50 B-13, 2 x 1 - 76/28 8K, 2 x 2 - 12.7/90, 124 mines Okhotsk: 3 x 1 - 130/50 B-13, 2 x 1 - 76/28 8K, 2 x 2 - 12.7/90, 58 mines
Complement	173

Graphics

Project history

Built as naval icebreaking survey vessels. The project 201 (conversion to minelayer) was created in 1939, then conversion of Murman was completed in 1940. Conversion of Okhotsk and Okean was conducted under the modified project: in particular, mine capacity was moderated: Okhotsk carried on deck 58 mines, Okean 62 on deck and 62 in hold, but minelaying from the hold was possible only in good weather. Okhotsk was re-commissioned as minelayer 6.6.1941, Okean 10.6.1942.

Modernizations

None.

Naval service

Late 1945 they all were disarmed and converted again to survey vessels, then they served about 30 years.