NAVYPEDIA

Photo

531 1993

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
i	3025, later- 531		Najin SY		1972	1973	in service (2019)
ii	3026, later- 631, later- 591		Napho SY		1973	1975	in service (2019)

Technical data

Displacement standard, t	1200
Displacement full, t	1500
Length, m	100.0
Breadth, m	10.0
Draught, m	2.70
No of shafts	2
Machinery	2 diesels
Power, h. p.	15000
Max speed, kts	25
Fuel, t	diesel oil
Endurance, nm(kts)	4000(14)
Armament	2 x 1 - 100/56 B-34, 2 x 2 - 57/70 type 66, 4 x 2 - 25/82 2M-3M, 4 x 2 - 14.5/89, 1 x 3 - 533 TT, 4 x 5 RBU-1200 ASWRL, 2 DCT, 2 DCR, 30 mines
Electronic equipment	type 351, type 352, Fut-N, Rangout radars, Tamir-10 sonar, type 923-1 ECM suite, 6x 6-round decoy RL
Complement	190

Standard scale images

Graphics

Project history

Frigates of indigenious construction, based on Soviet project 42.

Modernizations

early 1980s, both: - 1 x 3 - 533 TT; + 1 x 2 P-15 Termit SSM (2 P-15)

late 1980s, both: - 1 x 2 P-15 Termit SSM, 4 x 2 - 14.5/89, 4 x 5 RBU-1200 ASWRL, 2 DCT; + 2 x 1 P-15 Termit SSM, 2 x 2 - 30/71 AK-230, MR-104 Rys' radar

late 2010s, both: - 2 x 1 P-15 Termit SSM; + 2 x 4 Kumsong-3 SSM (8 Kumsong-3)

late 2010s, 591: + 4 x 2 - 30/71 AK-230

Naval service

No significant events.