Admiral Petre Bărbuneanu-class corvette

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 This class of corvettes was superseded by the Rear-Admiral Eustațiu Sebastian (Tetal-II) class.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 Koni-class frigate 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 1440 t and measure 92.4 m long with a beam of 11.7 m and a draught of 3 m. The ships are powered by four diesel engines driving four shafts creating 20000 bhp. This gives the corvettes a maximum speed of 24 kn.

The vessels are armed with four Soviet-designed AK-276 76 mm/59 calibre guns in two twin turrets with one turret situated forward and aft. The 76 mm guns have a range of 16 km and fire up to 90 rounds per minute. For anti-aircraft (AA) defence, the corvettes have four AK-230 30 mm/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 4 km and can fire up to 500 rounds per minute. They also mount two single-mounted 14.5 mm 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 2500 m. The ships have four 533 mm 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 25 km.

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.

Construction and career
The vessels were constructed at the Mangalia Shipyard for the Romanian Naval Forces. The first ship to commission was Amiral Petre Bărbuneanu in 1983. Three more corvettes would follow before the project was terminated in 1987 in favour of a new design that incorporated a helicopter flight deck. In 2004, two of the corvettes, Vice-Amiral Vasile Urseanu and Vice-Amiral Vasile Scodrea were decommissioned. The remaining ships are based at Constanța.