Project 678 / Project 1851
Nelma class / X-Ray class

Unit			Shipyard	Fleet	Chronology				Carrier vessel	Notes
#	pennant	yard #	Shipyard	Fleet	Laid Down	Launch	Comm.	Stricken	Carrier vessel	Notes
Project 1851
1	AS-23	01429	SY 196	NOR	25 Sep 1981	30 Oct 1983	30 Dec 1986	1997 ?	KS-86 , since 1991 KS-411	in reserve
Project 1851.1
2	AS-21	01430	SY 196	NOR	26 Dec 1984	29 Apr 1991	28 Dec 1991	1997 ?	KS-411	in reserve
3	AS-35	01431	SY 196	NOR	20 Dec 1989	29 Sep 1994	12 Oct 1995	1997 ?	BS-136 (Project 09786)	in reserve

Alternatively

Unit			Shipyard	Fleet	Chronology				Notes
#	number	Name	Shipyard	Fleet	Laid Down	Launch	Comm.	Stricken	Notes
1	AS-11		SY 196	NOR	----------	11/**/ 1983	07/**/ 1984	1997	in reserve