The HTMS Makut Rajakumarn is a frigate

Frigate

A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...

 operated by the Royal Thai Navy

Royal Thai Navy

The Royal Thai Navy is the navy of Thailand and part of the Royal Thai Armed Forces, it was established in the late 19th century. Admiral Prince Abhakara Kiartiwongse is "The Father of Royal Thai Navy". Similar to the organizational structure of the United States, the Royal Thai Navy includes the...

. The ship was built by Yarrow Shipbuilders

Yarrow Shipbuilders

Yarrow Limited , often styled as simply Yarrows, was a major shipbuilding firm based in the Scotstoun district of Glasgow on the River Clyde...

 in Glasgow, Scotland. The ship entered service in 1973 and is currently (2010) in service as a training ship.

The design was based on the Malaysian frigate KD Rahmat

KD Rahmat

The KD Rahmat was a frigate operated by the Royal Malaysian Navy.The ship was ordered in 1966 as the KD Hang Jebat. The design emphasised simplicity and economy but had an unusual machinery layout with a gas turbine and two diesels driving two propellers via a gearbox...

, but is larger and has a second gun at the stern. The ship was refitted in 1985-88 following and engine room fire in 1984, with the Sea Cat missiles and Limbo anti submarine mortar removed and replaced by anti-submarine torpedo tubes and new radar and sonar.