The Admiral Petre Bărbuneanu-class corvette (also known as the Tetal-I class by NATO) is a series of four corvettes designed and constructed for the Romanian Naval Forces primarily for anti-submarine warfare. Only two corvettes out of a total of the four are still in service. Designed and constructed in the 1980s, they are a product of the Cold War with their armament and sensors based on Soviet designs. This class of corvettes was superseded by the Rear-Admiral Eustațiu Sebastian (Tetal-II) class. Design and description The Admiral Petre Bărbuneanu class was based on the Soviet Navy's but designed in Romania to a smaller size, though retaining their anti-submarine warfare (ASW) role. They incorporated Soviet weapons and sensors into their design. Vessels of the class have a full load displacement of and measure long with a beam of and a draught of . The ships are powered by four diesel engines driving four shafts creating . This gives the corvettes a maximum speed of . The vessels are armed with four Soviet-designed AK-276 /59 calibre guns in two twin turrets with one turret situated forward and aft. The 76 mm guns have a range of and fire up to 90 rounds per minute. For anti-aircraft (AA) defence, the corvettes have four AK-230 /65 calibre AA guns in two twin mounts positioned aft, forward of the aft 76 mm turret. The 30 mm guns have a range of and can fire up to 500 rounds per minute. They also mount two single-mounted machine guns along the amidships. For ASW purposes, the Admiral Petre Bărbuneanu class mounts RBU 2500 16-tubed ASW rocket launchers that are trainable with a range of . The ships have four torpedo tubes in two twin mounts situated aft to either side of the aft 76 mm gun turret. They can fire Type 53-65 torpedoes which have a range of . Admiral Petre Bărbuneanu-class corvettes are equipped with Soviet MR-302 (NATO reporting name: Strut Curve) air search/surface search radar, MR-104 Rys (NATO reporting name: Drum Tilt) and MR-105 Turel (NATO reporting name: Hawk Screech) fire control radar. They have Hercules MG-22 hull-mounted sonar for underwater search and two PK 16 chaff launchers and RW-23 (NATO reporting name: Watch Dog) electronic support measures. The corvettes have a complement of 98. Ships in class Construction and career The vessels were constructed at the Mangalia Shipyard for the Romanian Naval Forces. The first