Hydrographic survey vessels
Project 861

NATO: Moma Class

Completed

29 units

Ships

Poland, Gdansk

General characteristics - Project 861

Schematics

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Modernizations

Medium intelligence ships: Project 861M – 9 units: Arkhipelag in 1968, Vega in 1975, Ilmen in 1972, Kildin in 1970, Nakhodka in 1970, Pelorus in 1969, Seliger in 1971, Ekwator in 1976, Yupiter. 1080/1560 tons, draft 3,9 m, SAM system Strela (16 missiles), 1x1 12,7 mm NSV-12,7 Utes (Nakhodka), 9700 nmi (11 knots), crew - 73 (11 officers), Bizan ESM radar system, 2 Don navigation radars, sonar MG-329 Sheksna, underwater communication system MG-13, underwater communication system MG-26 Khosta, station MI-110K (then on some ships was removed), special electronics: Vitok-AK, MRR-1-7, Vakhta-M, Vakhta-10, Vakhta-12, Vizit-M, Rotor-N, Uzel, Kayra, Oktava
Project 861M2: Arkhipelag in Roslyakovo, Vega, Ilmen, Nakhodka in 1986-87 Roslyakovo Shipyard №82, Pelorus, Seliger in 1978, Yupiter
Without Project – 3 units: Liman in 1989, Okean in 1989, Rybachiy in 1989. On Rybachiy 2?x2 12,7 mm 2M-1
In 1992 have been reclassified into еру medium intelligence ships
On Nakhodka added установлена аппаратура Kurok radio intelligence system
On Kolguev added anti-submarine search complex MNK-400
On Rybachiy added Rosa unmanned underwater vechicle
On Andromeda in 2015 Don navigation radar was replaced by MR-231 navigation radar

Fleets

Baltic Fleet: Andromeda, Arktika (since 1996 Black Sea Fleet), Askold, Kolguev (then Northern Fleet), Liman (since 1974 Black Sea Fleet), Rybachiy (since 1986 Pacific Fleet)
Black Sea Fleet: Okean, Naktouz, Cheleken, Ekwator, Yupiter
Northern Fleet: Arkhipelag, Ilmen (since 03.1976 Pacific Fleet), Kildin (since 1977 Black Sea Fleet), Krilyon, Mars, Nakhodka, Pelorus, Seliger, Elton
Pacific Fleet: Altair, Antares, Antarktida, Vega, Zapolyarye (then Northern Fleet), Morzhovets, Sever, Taimyr

Hull Numbers

Arkhipelag: ССВ-512(1979)
Vega: ССВ-474(1979)
Ilmen`: ГС-117(1976), ССВ-472(1979)
Kildin: 406(1990)
Liman: 413(1990)
Nakhodka: ССВ-506(1979), 484?(1994)
Okean: 409(1.05.1990)
Pelorus: ССВ-509(1979)
Seliger: ССВ-514(1979)
Ekwator: 418(1990)
Yupiter: 416(1.05.1990)

Decommissioned

1993 – Ilmen (30.06), Pelorus (30.06), Seliger (30.06)
1994 – Arkhipelag (5.07), Zapolyarye (5.07), Elton (5.07)
1995 – Vega (4.08)
1997 – Altair, Rybachiy (17.07)
1998 – Nakhodka (16.03), Morzhovets
2000 – Taimyr
2001 – Okean (22.01)
2003 – Arktika (cargo-passenger ship)
2008 – Askold (25.08)
2012 – Mars
2013 – Krilyon
2015 – Antares (september)
2017 – Liman (27.04 sank near the Bosporus strait following a collision with the Togo-flagged livestock carrier Youzarsif H)
2025 – Cheleken

Export

Bulgaria: 1 unit
Project 861MV №61, since 1985? №401, since 1986 Admiral Branimir Ormanov (№861MV/32) ?/24.12.1975/23.03.1976. Decomm. 19.06.2008. ?/1533 t, 73,34x11.2x3.9 m, 10000 nmi (12 kts), 3 diesel-generators x250 KW, 1 diesel-generator x60 kW, complement 66+19. In 1982-84 were added 2x4 MTU-4U launchers for 9K32 Strela-2 SAM system (9M32 missiles)

Poland: 1 unit
Kopernik 261 (№861/20) 13.02.1970/18.09.1970/31.01.1971. Decommissioned 20.05.2005

Ukraine: 2 units
Medium intelligence ship Simferopol U511, since 27.11.2011 U543 (till 28.11.1995 Yupiter), since 07.2006 training ship, decomm. 7.11.2012, hydrographic survey ship Berezan U602 (till 1997 Naktouz), since 1.03.1998 Berezan` Derzhgidrografiya without rename

Croatia: 1 unit
Training ship Andrija Mohorovichich 72 (till 19.09.1991Yugoslavia), since 11.06.2008 - Coast Guard

Yugoslavia: 1 unit
Project 861J Andrija Mohorovichich PH33/ПХ33 (№861J/23) ?/12.02.1971/19.06.1971