Sorum-class tugboat
 Russian Navy Sorum-class seagoing tug MB-99 (Project 745) during the Navy Day celebrations at Vladivostok in 2008
| |
| Class overview | |
|---|---|
| Name | Sorum class |
| Builders |
|
| Operators |
|
| In commission | 1972 |
| Completed | c. 43[1] |
| General characteristics (Project 745) | |
| Type | Seagoing tug |
| Displacement | 1,452 t (1,429 long tons; 1,601 short tons) |
| Length | 56.5 m (185 ft 4 in) |
| Beam | 12.64 m (41 ft 6 in) |
| Draft | 4.47 m (14 ft 8 in) |
| Installed power |
|
| Propulsion | IEP; two shafts:
|
| Speed | Max: 13.2 knots (24.4 km/h; 15.2 mph) |
| Range | 6,200 nmi (11,500 km; 7,100 mi) at 13 kn (24 km/h; 15 mph) |
| Endurance | 40 days |
| Complement | 35 |
| Sensors and processing systems | |
| Armament | |
The Sorum class, Soviet designation Project 745, is a series of seagoing tugs built for the Soviet Navy and KGB Border Troops, and later operated by the Russian Navy and FSB Border Service.[3]
These vessels perform the standard missions of a seagoing tugboat with other missions such as protecting and patrolling Russian maritime borders, enforcing navigational rules and law enforcement, search and rescue, and fisheries protection.
Design
[edit]- Project 745 seagoing tug
- The oceangoing tugs are auxiliary vessels for the Soviet Navy, later the Russian Navy.[4][1]
- Project 745P patrol ship
- The border patrol ships are modified versions of the original Project 745. They are armed with two 30 mm AK-230M or AK-306[c] gun mounts giving them the ability to fire on surface, air and ground targets, and are equipped with the Kolonka-1 fire-control system to control these weapons.[5][1]
- Project 07452 experimental vessel
- The reconnaissance vessel is a version of the original Project 745, which is a testbed for SIGINT and hydroacoustic equipment.[1]
- Project 745MB seagoing tug
- The oceangoing tug is a modernized version of the original Project 745. It is equipped with two main diesel gensets (2 × 1,500 kW), three auxiliary diesel gensets (2 × 200 kW + 1 × 100 kW), an asynchronous propulsion motor (1 × 2,720 PS or 2,680 shp) and a bow thruster.[6][2][1]
- Project 745MBS rescue tug
- The rescue tug is a SAR version of the modernized Project 745MB, which is equipped with a switched reluctance propulsion motor instead of an asynchronous one.[2][1]
Externally, the Projects 745MB and 745MBS tugs can be distinguished from the original Project 745 tugs by twin funnels instead of one.
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Russian Navy Project 745 seagoing tug MB-307 in the North Atlantic Ocean in 1993 -
Ukrainian Navy Project 745 seagoing tug Korets and Gyurza-M-class gunboat Berdiansk (U175) in the Black Sea in 2016 -
Russian Coast Guard Project 745P border patrol ship Zabaykalye in the western Pacific in 1992 -
Russian Coast Guard Project 745P border patrol ship Bug and Type Yamaha border patrol boat Steregushchy during the Russian-Japanese exercise in Aniva Bay in 2009 -
Soviet Navy Project 07452 experimental vessel OS-572 (de facto reconnaissance vessel) -
Russian Navy Project 745MB seagoing tug MB-12 at Cape Zhelaniya in 2020 -
Russian Navy Project 745MBS rescue tug Viktor Konetsky and IRIS Shahid Mahdavi (P313-1) during the CHIRU exercise in 2019
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History
[edit]A Project 745P border patrol ship was involved in an incident involving Greenpeace vessel where the Russian ship fired warning shots, and later seized a Greenpeace vessel after they attempted to board an oil rig in the Arctic in 2013.[7]
Another Project 745P border patrol ship rammed a Ukrainian tug in the Kerch Strait on November 25, 2018.[8]
See also
[edit]Notes
[edit]- ^ One unit (ex-Soviet Navy seagoing tug MB-26) that was scrapped in 2019.[1]
- ^ a b One unit (Ukrainian Navy seagoing tug Korets, ex-Soviet Navy MB-30) that was captured by the Russian Armed Forces in the Port of Berdiansk during the Russian invasion of Ukraine on February 28, 2022.[1]
- ^ The last five of nineteen built ships.[1]
References
[edit]- ^ a b c d e f g h i Russianships.info.
- ^ a b c Grigoryev 2023, p. 120.
- ^ Polmar 1986.
- ^ Polmar 1986, pp. 9, 82, 322.
- ^ Polmar 1986, pp. 9, 385.
- ^ Zelenodolsk Shipyard.
- ^ "Russia 'seizes' Greenpeace ship after Arctic rig protest". BBC News. 23 September 2013. Retrieved 29 June 2017.
- ^ "Navy tugboat Yani Kipi vs Russian coastguard". liveuamap. Retrieved 25 November 2018.
Further reading
[edit]- Polmar, Norman (1986). Guide to the Soviet Navy (4th ed.). Annapolis, Md.: Naval Institute Press. pp. 8–9, 82, 322, 385. ISBN 0-87021-240-0.
- Grigoryev, Andrey V. (June 2023). История и современное состояние судовых систем электродвижения (PDF). WWW.KORABEL.RU (in Russian). No. 2. Saint Petersburg. pp. 116–122. Retrieved 10 March 2024.
External links
[edit]
Wikimedia Commons has media related to Sorum class tugboat.
- "Seagoing tug - Project 745". Russianships.info. Archived from the original on 17 November 2023. Retrieved 10 March 2024.
- Морской буксир проекта 745МБ [Project 745MB seagoing tug]. JSC "Zelenodolsk Plant named after A.M. Gorky" (in Russian). Archived from the original on 18 July 2020. Retrieved 10 March 2024.