These are flush-deck ships with a pronounced sheer toward the bow. When transferred, the main gun armament consisted of two 5-in (127-mm) dual-purpose gun mounts, one forward and the other aft; the after mount was later removed in several ships and replaced by a Phalanx Close-In Weapons System (CIWS) mount. An 8-barrel ASROC anti-submarine rocket launcher is fitted between the funnels and the torpedo tubes are ahead of the bridge on the forward part of the superstructure.
All of the ships were refitted at Karachi with the AN/SQS-23 sonar being upgraded to the solid-state, SQS-23D configuration. Several ships also received the Phalanx CIWS mount.
Beginning with the SHAH JAHAN, 3 twin launchers for the Harpoon anti-ship missile were fitted to increase the surface warfare effectiveness of these ships. All have had their WLR-1 Electronic Support Measures (ESM) system replaced with the Argo Phoenix II.
|Pennant||Name||Launched||Inducted in PN|
Displacement 2,425 tons standard 3,500 tons full load Dimensions: length 382 ft 10 in (116.7 m) waterline 390 ft 5 in (119.0 m) overall beam 41 ft ( 12.5 m) draft 14 ft 9 in ( 4.5 m) hull 21 ft ( 6.4 m) over sonar Propulsion: 2 steam turbines (General Electric); 60,000 shp; 2 shafts Boilers: 4 (Babcock & Wilcox) Performance: speed 30 kts range 4,800 nm at 15 kts Manning approx 280 Combat Systems: helicopters platform for 1 Alouette III ASW missiles 2 twin launchers for Harpoon SSM guns 4 5-in (127-mm)/38-cal Mk 38 DP (2 twin) 4 20-mm AA (2 twin) 1 20-mm Mk 15 Phalanx close-in (multi-barrel) ASW weapons 6 12.75-in (324-mm) torpedo tubes Mk 32 (2 triple) for Mk 46 torpedoes 1 8-cell Mk 116 ASROC launcher  radars 1 SPS-10 surface search 1 SPS-40 air search 1 Decca 1226 navigation sonars 1 SQS-23D hull-mounted active medium-frequency EW 1 Argo Phoenix II intercept and jammer 2 Shield chaff/flare launchers (6-barrel) Mk 6 Fanfare towed torpedo decoys fire control Mk 37 GFCS with Mk 25 radar