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HTMS Phutthaloetla Naphalai
Royal Thai Navy HTMS Phutthaloetla Naphalai
Career Thai Navy Ensign
Name: HTMS Phutthaloetla Naphalai
Builder: Avondale Shipyards, Westwego, Louisiana
Laid down: 15 January 1969
Launched: 17 January 1970
Acquired: 27 November 1996
Commissioned: 1997
Status: in active service, as of 2021
General characteristics
Class & type: Knox-class frigate
Displacement: 4,065 long tons (4,130 t)
Length: 438 ft (134 m)
Beam: 47 ft (14 m)
Draft: 25 ft (7.6 m)
Propulsion: Steam turbine
2 × 1,200 psi boilers
1 geared turbine
1 shaft
35,000 shp (26,099 kW)
Speed: 27 knots (31 mph; 50 km/h)
Complement: 250 officers and enlisted
Sensors and
processing systems:
SPS-40B 2-D air search radar
SPG-53 fire control radar
SQS-26CX bow sonar
SQR-18 towed sonar
SLQ-32(V)1 passive intercept
Armament: • 8 × ASROC anti-submarine missiles
• 4 × Harpoon missiles
• 4 × Mk.32 torpedo tubes with Mark 44 torpedoes
• 1 × 5"/54 caliber Mark 42 gun
• 1 × 20 mm Phalanx CIWS
Aviation facilities: Helicopter deck and hangar

HTMS Phutthaloetla Naphalai (FFG 462) (Thai language: พุทธเลิศหล้านภาลัย) is the former USS Ouellet (FF-1077), a Knox-class frigate.

The Royal Thai Navy purchased the ship from the US Navy after she was decommissioned on August 6, 1993. The ship subsequently underwent a US $14M refit at the Cascade General Shipyard, Portland, Oregon, and arrived in Thailand in 1998.

As a Phutthayotfa Chulalok-class frigate, she has a sister ship, the HTMS Phutthayotfa Chulalok (FFG 461).

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