Project 633 Romeo class

The Soviet Union built reportedly only 20 or so of these submarines; China is estimated to have built 84 between mid-1962 and 1984, plus four for exports to Egypt and another four to North Korea. Russia’s last units were stricken in 1987 and scrapped in 1989. As usual, the chronology is hopelessly jumbled, du in no small measure to the Soviet practice of giving vessels both names and pennant numbers, and their very un-American practice of changing these designators over time.

Class Listing
Unit			Shipyard	Chronology				Notes
#	Name	Pennant	Shipyard	Laid Down	Launched	Comm.	Stricken	Notes
1	S-4		SY 112	22 Oct 1957	30 May 1958	26 Dec 1959	1985	1985 to Syria
2	S-7		SY 112		28 Feb 1961	18 Sep 1961	17 Mar 1983	01/1982 to Algeria
3	S-11	375	SY 112		15 Apr 1961	17 Sep 1961	24 Jun 1991	project 06332 converted(test ship for new torpedoes)
4	S-28		SY 112		21 Jun 1961	23 Dec 1961	17 Mar 1982	02/1983 to Algeria
5	S-34		SY 112		14 Jun 1959	31 Dec 1959	05 Oct 1966	possibly to ally
6	S-36		SY 112		27 Sep 1959	30 Sep 1960	28 Dec 1985	12/1985 to Bulgaria
7	S-37	378	SY 112		10 Oct 1959	31 Mar 1960	03 Jul 1992	1967 project 633L converted(modernized)
8	S-38		SY 112		30 Nov 1959	23 Sep 1960	22 Jan 1983	01/1983 to Bulgaria
9	S-49	374	SY 112		27 Jul 1961	31 Dec 1961	1994	possibly to ally
10	S-53		SY 112		02 Mar 1960	31 Dec 1960	17 Dec 1985	NO. possibly S-56 possibly to ally
11	S-57		SY 112		20 Aug 1961	27 Dec 1961	25 May 1972	NO. possibly S-56 07/1972 to Bulgaria
12	S-101	266	SY 112		15 Apr 1960	21 Dec 1960	04 Feb 1986	possibly to ally
13	S-123	376	SY 112		20 Jul 1960	29 Dec 1960	24 Aug 1993	hull NO. possibly S-128 project 06333 converted(test ship for RK-55 Granat missile)
14	S-212		SY 112		30 May 1960	21 Dec 1960	05 Dec 1972	11/1972 to Bulgaria
15	S-350		SY 112		30 May 1958	31 Aug 1959	09 Mar 1982	01/11/1962 lost
16	S-351		SY 112		18 Aug 1958	06 Nov 1959	17 Oct 1967	Transferred
17	S-352		SY 112		25 Sep 1958	31 Oct 1959	26 Jan 1967	possibly to ally
18	S-353		SY 112		30 Nov 1958	26 Dec 1959	19 Jul 1966	possibly to ally
19	S-354		SY 112		10 Jan 1959	30 Nov 1959	17 Oct 1966	possibly to ally
Poorly Attested
	S- 4	283	SY 112		17 Dec 1960	18 Sep 1961	05 Feb 1987	Transferred
	S-6		SY 112		----------	1959-62	1994	possibly to ally
	S- 32		SY 112		30 Aug 1959	31 Dec 1959	05 Oct 1966	Transferred
	S-41		SY 112		----------	1959-62	1994	possibly to ally
	S-323		SY 112		----------	1959-62	1994	possibly to ally

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Military

Project 633 Romeo class

Class Listing

Poorly Attested