Phutthayotfa Chulalok-class frigate

Phutthayotfa Chulalok class frigate are former United States Knox-class frigates. There are two ships in this class in the Royal Thai Navy.

Units of Class

• HTMS Phutthayotfa Chulalok (FFG 461)
• HTMS Phutthaloetla Naphalai (FFG 462)

General characteristics

• Displacement: 3,000 tons (Maximum 4,260 tons)
• Dimensions: 133.5 x 14.17 x 7.46 meters
• Propulsion: Steam turbines, 2 boilers, 1 shaft, 35,000 shp
• Maximum Speed: 28 knots
• Cruise Speed: 15 knots
• Crew: 250
• Aircraft: helicopter deck and hangar
• Radar: SPS-40B 2-D air search
• Sonar: SQS-26CX bow, SQR-18 towed
• Fire Control: SPG-53 gun control
• EW: SLQ-32(V)1 passive intercept
• Armament:

• 8 ASROC
• 4 Harpoon
• 4 Torpedo Mk.32 with Torpedo Mk.44 and Torpedo Mk.44
• 1 5/54 Gun,
• 1 20 mm Phalanx CIWS