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FIGHTING SHIPS OF THE WORLD
RUSSIA / USSR
SUBMARINES
M-254 submarines (projects 615, A-615, 637) (1953 - 1958)


Photo



Pr. A615 1970  

Ships


Name No Yard No Builder Laid down Launched Comp Fate Modification
М-254 [M-254]   579 196 Yd (Sudomekh), Leningrad 17.3.1950 31.8.1950 31.5.1953 training hulk 1959 Project 615
Project A615               Project 615
М-255 [M-255]   664 196 Yd (Sudomekh), Leningrad 8.9.1953 16.9.1954 10.12.1955 stricken 3.1968 Project 615
М-256 [M-256]   665 196 Yd (Sudomekh), Leningrad 23.9.1953 15.9.1954 21.12.1955 fire 26.9.1957 Project 615
М-257 [M-257]   666 196 Yd (Sudomekh), Leningrad 10.11.1953 30.9.1954 10.12.1955 test hulk 2.1958 Project 615
М-258 [M-258]   667 196 Yd (Sudomekh), Leningrad 18.11.1953 4.11.1954 21.12.1955 stricken 12.1966 Project 615
М-259 [M-259]   668 196 Yd (Sudomekh), Leningrad 12.1.1954 5.11.1954 13.12.1955 stricken 9.1972 Project 615
М-260 [M-260]   669 196 Yd (Sudomekh), Leningrad 14.2.1954 21.5.1955 31.7.1956 stricken 1.1970 Project 615
М-261 [M-261], 6.1978- МС-261 [MS-261]   1070 196 Yd (Sudomekh), Leningrad 23.2.1954 21.5.1955 31.7.1956 stricken 5.1980, preserved Project 615
М-262 [M-262]   1071 196 Yd (Sudomekh), Leningrad 20.3.1954 12.7.1955 31.7.1956 stricken 1.1970 Project 615
М-263 [M-263]   1072 196 Yd (Sudomekh), Leningrad 8.4.1954 2.8.1955 2.11.1956 stricken 6.1976 Project 615
М-264 [M-264]   1073 196 Yd (Sudomekh), Leningrad 4.6.1954 14.9.1955 3.10.1956 stricken 7.1977 Project 615
М-265 [M-265]   1074 196 Yd (Sudomekh), Leningrad 15.7.1954 9.9.1955 30.9.1956 stricken 1978 Project 615
М-266 [M-266], 8.1977- МС-266 [MS-266]   1075 196 Yd (Sudomekh), Leningrad 30.8.1954 30.10.1955 30.9.1956 stricken 1979 Project 615
М-267 [M-267]   1078 196 Yd (Sudomekh), Leningrad 15.10.1954 14.1.1956 30.9.1956 stricken 1980 Project 615
М-268 [M-268]   1079 196 Yd (Sudomekh), Leningrad 20.11.1954 16.4.1956 26.12.1956 stricken 1980 Project 615
М-269 [M-269], 8.1977- МС-269 [MS-269]   1080 196 Yd (Sudomekh), Leningrad 30.11.1954 17.3.1956 27.8.1957 stricken 1980 Project 615
М-295 [M-295]   701 196 Yd (Sudomekh), Leningrad 10.1.1955 3.4.1956 16.8.1957 stricken 1973 Project 615
М-296 [M-296], 8.1977- МС-296 [MS-296]   702 196 Yd (Sudomekh), Leningrad 1.2.1955 4.4.1956 23.12.1958 stricken 6.1979, preserved Project 615
М-297 [M-297]   703 196 Yd (Sudomekh), Leningrad 5.8.1955 29.7.1956 29.8.1957 stricken 9.1975 Project 615
М-298 [M-298]   704 196 Yd (Sudomekh), Leningrad 2.8.1955 30.6.1956 31.8.1957 stricken 1975 Project 615
М-299 [M-299]   705 196 Yd (Sudomekh), Leningrad 19.9.1955 4.10.1956 30.11.1957 stricken 1978 Project 615
М-300 [M-300]   711 196 Yd (Sudomekh), Leningrad 27.9.1955 12.10.1956 30.11.1957 stricken 1976 Project 615
М-301 [M-301]   713 196 Yd (Sudomekh), Leningrad 7.1.1956 23.2.1957 27.12.1958 stricken 1979 Project 615
М-321 [M-321], 7.1980- МС-321 [MS-321]   715 196 Yd (Sudomekh), Leningrad 24.12.1955 23.2.1957 23.12.1958 stricken 1981 Project 615
М-351 [M-351]   801 194 Marti Yd, Leningrad 24.3.1954 4.7.1955 3.8.1956 stricken 1974 Project 615
М-352 [M-352]   802 194 Marti Yd, Leningrad 10.4.1954 7.10.1955 30.9.1956 stricken 5.1980 Project 615
М-353 [M-353], 5.1978- МС-353 [MS-353]   803 194 Marti Yd, Leningrad 15.5.1955 26.4.1956 30.9.1956 stricken 1.1980 Project 615
М-354 [M-354], 6.1979- МС-354 [MS-354]   804 194 Marti Yd, Leningrad 23.6.1955 5.6.1956 25.11.1956 stricken 1979 Project 615
М-355 [M-355]   805 194 Marti Yd, Leningrad 8.7.1955 17.4.1957 1.8.1957 stricken 1980 Project 615
М-356 [M-356]   816 194 Marti Yd, Leningrad 5.4.1956 27.4.1957 20.8.1957 stricken 1974 Project 615
Project 637               Project 615
М-361 [M-361]   817 194 Marti Yd, Leningrad 5.1955 3.1957 --- never completed Project 615


Technical data


Data variantpr. 615, A-615 pr. 637
Displacement standard, t

 

 

Displacement normal, t

pr. 615: 392 / 493

pr. A615: 406 / 504

425 / 680

Length, m

pr. 615: 56.6

pr. A615: 56.8

58.2

Breadth, m

pr. 615: 4.44

pr. A615: 4.46

4.46

Draught, m

pr. 615: 2.78

pr. A615: 3.59

3.45

No of shafts

3

3

Machinery

pr. 615: 1 32D AIP diesel + 2 M-50 diesels / 1 32D AIP diesel / 1 PG-106 electric motor for cruising

pr. A615: 1 32D AIP diesel + 2 M-50P diesels / 1 32D AIP diesel / 1 PG-106 electric motor for cruising

1 32D AIP diesel + 2 M-50P diesels / 1 32D AIP diesel / 1 PG-106 electric motor for cruising

Power, h. p.

pr. 615: 2300 (900+2x700) / 900 / 100

pr. A615: 2700 (900+2x900) / 900 / 100

2700 (900+2x900) / 900 / 100

Max speed, kts

pr. 615: 17.2 / 15.4

pr. A615: 16.1 / 15

16 / 15

Fuel, t

diesel oil

diesel oil

Endurance, nm(kts)

pr. 615: 1700(9.1) / 325(2.5)

pr. A615: 3150(8.3) / 410(3.5)

2700(8) / 350(3.5)

Armament

pr. 615: 1 x 2 - 25/112 2M-8, 4 - 533 TT (bow, 4)

pr. A615 completed 1955-56: 1 x 2 - 25/112 2M-8, 4 - 533 TT (bow, 4)

pr. A615 completed 1956-58: 4 - 533 TT (bow, 4)

4 - 533 TT (bow, 4)

Electronic equipment

Flag radar, Tamir-5L, Mars-16KIG sonars

Flag radar, Tamir-5L, Mars-16KIG sonars

Complement

pr. 615: 29

pr. A615: 41

33

Diving depth operational, m

100

100



Standard scale images


<i>M-321 </i>1960
M-321 1960
<i>M-361</i>
M-361


Graphics


Pr. A615 1970  
Pr. A615 1970  


Project history

This closed cycle ('single propulsion system', in Soviet parlance) design was chosen in preference to the conventional Project 612 as successor to the earlier M-classes. Project 615 was by TsKB-18; the production A615 was by TsKB-16 (the chief designer, Kassatier, apparently transferred to TsKB-16) The Kreislauf powerplant, derived from prewar experiments, ran submerged n an internal supply of liquid oxygen; oxygen was added after exhaust was passed through a lime chemical absorbent (ED KhPI). The submarine could also use a snorkel. There were three engines: one 32D diesel (900bhp) on the centre shaft, plus a pair of 700/900bhp M-50/M-50P diesels (a type used on torpedo boats), with a 100hp creep motor on the centre shaft and a back-up diesel generator aft. Boats could run at low speed using only the centreline diesel.

Because liquid oxygen could be stored for only a limited period, the boat could not operate far from a base. To overcome this problem, in 1954-55 the Project 637 submarine was designed to use a new 'B-2 single product', consisting of solid granules containing bonded oxygen and a carbon dioxide absorbent. Exhaust gas passed through it would have its carbon dioxide leached out while its oxygen content was renewed. In 1958-59 M-361, then under oh construction, was retrofitted to test B-2, but in 1960 her trial programme was stopped and closed-cycle work ended because of the success of the nuclear programme.

Modernizations

None.

Naval service

M-256 was lost 26.9.1957 off Tallin due to fire.