In 1973 Greater Thailand bought 2 patrol frigates from United Kingdom again. Vosper Mk 7 was built completed in 1976 but install only new sensors and new main gun. The navy plan to install Sea Cat missile and Gabriel missile in a few years but the conflict in Greater Thailand was change everything.
Ayutthaya Vanalee Class 1976 : Patrol Frigate (with the Royal Greater Thailand Navy Flag)
General specifications:
Class & type: Vosper Mk 7 Frigate
Displacement: 1,325 tons standard : 1,625 tons full load
Length: 100.6 m
Beam: 11 m
Draught: 3.4 m
Propulsion: 2 shaft CODOG
2 Rolls-Royce Olympus gas turbines 46,400 hp
2 Paxman Ventura diesels 3,500 hp
Speed: 37.5 knots (17 knots diesels only)
Range: 5700 NM - at 17 knots
Crew: 132
Sensors:
1xThales DA05 surveillance and targeting radar
1xDECCA 1229 surface search/navigation radar
1xRan 10S fire control radar
Communication systems:
UHF antennas
1xBAE AN/TPX-54 Mk X
Armament:
1xOto Melara 76/62 mm compact gun
2xBofors 40/70 guns (old weapons)
2xM2HB machine guns (old weapons)
2xDepth Charge Rack Mk3 (old weapons)
2xDepth Charge Gun Mk9 K-Gun (old weapons)
2xHedgehog MK11 Anti-submarine Mortar (old weapons)
Vosper Mk 7 Frigate (Libyan frigate Dat Assawari)