NAVYPEDIA

Photo

Pr. 611 1978

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate	Modification
Б-61 [B-61]		580	196 Yd (Sudomekh), Leningrad // 890 Yd, Tallin	10.1.1951	26.7.1951	31.12.1953	stricken 6.1980	Project 611
Б-62 [B-62]		631	196 Yd (Sudomekh), Leningrad	6.9.1951	29.4.1952	31.12.1953	training hulk 2.1978	Project 611
Б-63 [B-63], 4.1970- Б-863 [B-863]		632	196 Yd (Sudomekh), Leningrad	6.2.1952	18.7.1952	30.6.1954	training hulk 6.1980	Project 611
Б-64 [B-64], 4.1970- Б-864 [B-864]		633	196 Yd (Sudomekh), Leningrad	15.5.1952	29.11.1952	30.12.1954	training hulk 9.1974	Project 611
Б-65 [B-65]		634	196 Yd (Sudomekh), Leningrad	24.7.1952	21.3.1953	6.12.1954	stricken 6.1981	Project 611
Б-66 [B-66], 4.1970- Б-866 [B-866]		635	196 Yd (Sudomekh), Leningrad	15.12.1952	30.6.1953	29.12.1954	stricken 7.1982	Project 611
Б-68 [B-68]		637	196 Yd (Sudomekh), Leningrad	6.6.1953	31.10.1953	27.11.1955	training hulk 7.1972	Project 611
Б-69 [B-69], 8.1977- БС-69 [BS-69]		638	196 Yd (Sudomekh), Leningrad	14.9.1953	18.6.1954	31.12.1955	stricken 4.1990	Project 611
Б-70 [B-70]		351	402 Yd, Molotovsk	14.5.1954	18.9.1955	29.6.1956	training hulk 4.1978	Project 611
Б-71 [B-71]		402	402 Yd, Molotovsk	7.6.1954	19.5.1956	30.9.1956	training hulk 7.1972	Project 611
Б-72 [B-72]		403	402 Yd, Molotovsk	16.11.1953	18.9.1955	30.6.1956	stricken 12.1985	Project 611
Б-74 [B-74], 4.1970- Б-874 [B-874]		305	402 Yd, Molotovsk	27.9.1954	5.6.1956	31.10.1956	target 7.1975	Project 611
Б-75 [B-75]		306	402 Yd, Molotovsk	11.11.1954	8.7.1956	6.11.1956	stricken 7.1988	Project 611
Б-76 [B-76]		307	402 Yd, Molotovsk	24.1.1955	25.8.1956	28.11.1956	recharging station 4.1978	Project 611
Б-77 [B-77], 4.1970- Б-877 [B-877]		208	402 Yd, Molotovsk	7.5.1955	20.9.1956	30.11.1956	training hulk 6.1976	Project 611
Б-80 [B-80]		111	402 Yd, Molotovsk	1.2.1956	16.1.1957	13.7.1957	stricken 4.1990	Project 611
Б-81 [B-81], 4.1970- Б-881 [B-881]		112	402 Yd, Molotovsk	19.4.1956	16.1.1957	13.7.1957	stricken 4.1985	Project 611
Б-82 [B-82], 8.1977- БС-82 [BS-82]		113	402 Yd, Molotovsk	15.6.1956	12.5.1957	17.8.1957	stricken 7.1987	Project 611
Б-88 [B-88]		514	402 Yd, Molotovsk	17.8.1956	4.7.1957	25.9.1957	recharging station 6.1981	Project 611
Б-90 [B-90]		516	402 Yd, Molotovsk	25.10.1956	17.8.1957	30.10.1957	training hulk 6.1983	Project 611
Б-91 [B-91], 4.1970- Б-891 [B-891], 8.1977- БС-891 [BS-891]		517	402 Yd, Molotovsk	25.1.1957	26.11.1957	15.7.1958	stricken 7.1988	Project 611
Б-67 [B-67], 4.1970- Б-867 [B-867]		636	196 Yd (Sudomekh), Leningrad // 402 Yd, Molotovsk	26.3.1953	5.9.1953	30.6.1956	training hulk 6.1971	Project V611
Б-73 [B-73]		404	402 Yd, Molotovsk	16.8.1954	16.1.1957	30.11.1957	stricken 8.1974	Project AV611
Б-78 [B-78], 10.1962- Б-78 Мурманский комсомолец [B-78 Murmanskiy Komsomolets], 8.1977- БС-78 Мурманский комсомолец [BS-78 Murmanskiy Komsomolets]		209	402 Yd, Molotovsk	16.7.1955	13.6.1957	30.11.1957	stricken 7.1986	Project AV611
Б-79 [B-79], 4.1970- Б-879 [B-879]		210	402 Yd, Molotovsk	19.12.1955	16.7.1957	3.12.1957	stricken 6.1980	Project AV611
Б-89 [B-89], 4.1977- БС-89 [BS-89]		515	402 Yd, Molotovsk	5.2.1957	21.9.1957	13.12.1957	training hulk 6.1981	Project AV611

Technical data

Displacement standard, t
Displacement normal, t	pr. 611: 1830 / 2348 pr. V611: 1875 / 2387 pr. AV611: 1890 / 2400
Length, m	90.5
Breadth, m	7.50
Draught, m	pr. 611: 5.01 pr. V611: 5.14 pr. AV611: 5.15
No of shafts	3
Machinery	3 37D diesels / 1 PG-102 electric motor + 2 PG-101 electric motors
Power, h. p.	6000 / 5400 (2700 + 2 x 1350)
Max speed, kts	pr. 611 originally: 17 / 15 pr. 611 without artillery: 17 / 16 pr. V611: 16.5 / 13 pr. AV611: 16.5 / 12.5
Fuel, t	diesel oil
Endurance, nm(kts)	pr. 611: 22000(9.2) / 440(2.1) pr. V611, AV611: 14350(9) / 290(2)
Armament	pr. 611 completed 1951-1956: 1 x 2 - 57/70 SM-24-ZIF, 1 x 2 - 25/112 2M-8, 10 - 533 TT (6 bow, 4 stern, 22 or 32 mines + 6 torpedoes) pr. 611 completed 1956-1958: 10 - 533 TT (6 bow, 4 stern, 10) pr. V611, AV611: 2 R-11FM SLBM (2 8A611FM), 10 - 533 TT (6 bow, 4 stern, 10)
Electronic equipment	B-61: Flag radar, Tamir-5LS, Mars-24KIG sonars, Nakat ECM suite others: Flag radar, Tamir-5LS, Feniks sonars, Nakat ECM suite
Complement	pr. 611: 65 pr. V611, AV611: 72
Diving depth operational, m	170

Standard scale images

Graphics

Project history

Pr. 611 was the large-submarine equivalent to Pr. 613, also designed to a 1946 TTZ. The project reached the design stage in 1948, and plans for the first boat were transferred to Sudomekh in Leningrad on 10 January 1951. Compared to the prewar K-boat, Project 611 was about 400t larger. It could dive twice as deep (200m as opposed to 100m), had a much larger battery (4 x 112 cells as opposed to 2 x 120) and added a centre shaft carrying a diesel and a large electric motor (the two wing motors were only slightly more powerful than the 1200hp units on a K-boat) to increase submerged speed at the 1hr rate by about 50% and low-speed endurance by a factor of nearly 3, from 160nm. Surface speed fell from 22.5kts, because even the three engines of this type were less powerful than the two 4200bhp units of the K-boat.

The first boats completed had deck guns and lacked snorkels. In 1956, with jet aircraft clearly immune to such weapons, deck guns were ordered removed. All boats were eventually converted to this Project 611 configuration, with snorkels.

This class was used to test the first Soviet submarine-launched ballistic missile. On 26 January 1954 a directive was issued to arm long-range submarines with ballistic missiles (the 'Volna' programme). TsKB-16 developed the necessary stabilized sail-top launcher from gun mounts originally designed for the Project 82 battlecruiser. The existing army R-11 missile was selected, and adapted as R-11FM. B-67, a Northern Fleet submarine launched in 1953, was converted to fire a single missile as Project V611. On 16 September 1955 she fired the world's first submarine ballistic missile. Five boats were converted to take paired tubes (Project AV611). They formed the basis for the later Project 629. The first launch of a dummy missile from such a submarine was in 1958.

Modernizations

1957-1960, all Project 611: were armed with only 10 - 533 TT (6 bow, 4 stern, 22 or 32 mines + 6 torpedoes) (no artillery)

1957, B-64 - under Project P611: - spare torpedoes; + 1 x 1 P-10 SSM (1 P-10)

10/1958, B-62 - under Project AV611: with data as Project AV611 signed above

1959, B-64 - reverted to Project 611: - 1 x 1 P-10 SSM; + spare torpedoes

1960, B-67 - under Project PV611: 1890/2387t, 90.7x7.50x5.10m, /12.5kts, 3650(8)/290(2)nm; - 2 RF-11FM SLBM; + 1 S4.7 SLBM test maquette

1965, B-67 - under Project 611RA: - 1 S4.7 SLBM test maquette, 6 - 533 TT (bow); + Radian-1 sonar

1966, B-71 - under Project 611RU: 1865/2348t; - 6 - 533 TT (bow), Tamir-5LS, Feniks sonars; + Rubin sonar

1966, B-68 - under Project 611RE: 1890/2348t, 17/8kts; - 6 - 533 TT (bow), Tamir-5LS, Feniks sonars; + Kerch' sonar with Rassvet VDS array

1969, B-78 Murmanskiy Komsomolets - under Project AV611S: - 2 R-11FM SLBM; + Simvol astronavigation system

1969, B-89 - under Project AV611Ye: - 2 R-11FM SLBM, 10 - 533 TT; + Yenisey, Luch sonars

1970, B-73 - under Project AV611K: - 2 R-11FM SLBM; + Shtyr'-M satellite navigation system

1970, B-79 - under Project AV611Ts: - 2 R-11FM SLBM; + Tsunami-B satellite communication system

1972, B-69; 1973, B-891 - under Project 611P: - 6 - 533 TT (bow), spare torpedoes; + diving equipment, 'Arkhipelag' or 'Seliger' submersible

1973, B-78 Murmanskiy Komsomolets - under Project AV611D: - Simvol system; + science equipment

Naval service

No significant events.