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NO31 coastal minesweepers (1970-1971, 1964-1967/1985)


Photo



No36 1977

Ships


Name No Yard No Builder Laid down Launched Comp Fate
(ex-BT-569), 1985- Искар [Iskar] 36, 1985- 31   Avangard, Petrozavodsk, USSR     1968 // 14.9.1970 stricken 11.2012
(ex-BT-154), 1985- Цибар [Tsibar] 37, 1985- 32   Avangard, Petrozavodsk, USSR     1969 // 14.9.1970 stricken 2005
(ex-BT-...), 1985- Добротич [Dobrotich] 38, 1985- 33   Avangard, Petrozavodsk, USSR     1970 // 1971 stricken 11.2012
(ex-BT-569), 1985- Капитан-лейтенант Кирилл Минков [Kapitan-leytenant Kirill Minkov] 39, 1985- 34   Avangard, Petrozavodsk, USSR     1971 // 1971 stricken 1992
Капитан-лейтенант Евстати Винаров [Kapitan-leytenant Yevstati Vinarov] (ex-BT-...) 35   Avangard, Petrozavodsk, USSR     1964-67 // 1985 stricken 6.2008
Капитан 1 ранг Димитр Паскалев [Kapitan 1 rang Dimitr Paskalev] (ex-BT-...) 36   Avangard, Petrozavodsk, USSR     1964-67 // 1985 stricken 1992


Technical data


Displacement standard, t

254

Displacement normal, t

270

Length, m

40.5

Breadth, m

7.70

Draught, m

2.08

No of shafts

2

Machinery

2 M-870FTK diesels

Power, h. p.

2400

Max speed, kts

14

Fuel, t

diesel oil

Endurance, nm(kts)

1200(10)

Armament

1 x 2 - 30/71 AK-230M, 2 DCR (27), 8 - 12 mines, IU-1 USV, IT-3 USV, I-2 USV or MT-3 or TS-1 mechanical or PEMT-4 magnetic minesweeping gear, AT-2 acoustic or ST-2 magnetic minesweeping gear or 2 200m-long mine-clearing line charges

Electronic equipment

Don radar, MG-69 Lan' sonar

Complement

32



Standard scale images


<i>No31 </i>1975
No31 1975


Graphics


<i>No36 </i>1977
No36 1977
<i>Yevstati Vinarov </i>2000
Yevstati Vinarov 2000


Project history

Four Soviet Project 257DME minesweepers were built specially for Bulgarian Navy in 1970-1971, two additional ships of Project 257DM were transferred to Bulgaria after long service under Soviet flag.

Modernizations

None.

Naval service

No significant events.