They were equipped with a Siemens fire-control system which included a pair of rangefinders, one each for the fore and aft guns. The ships were fitted with two triple mounts for 533-millimetre (21 in) torpedo tubes and could carry 50 mines and 40 depth charges. For anti-aircraft defense, they were equipped with one Bofors 76-millimetre (3 in) anti-aircraft (AA) gun between the funnels and a pair of 40-millimetre (1.6 in) AA guns. The main armament of the Regele Ferdinand-class ships consisted of five 50- calibre Bofors 120-millimetre (4.7 in) guns in single mounts, two superfiring pairs fore and aft of the superstructure and one gun aft of the rear funnel. They could carry 480 long tons (490 t) of fuel oil which gave them a range of 3,000 nautical miles (5,600 km 3,500 mi) at a speed of 15 knots (28 km/h 17 mph). The turbines were designed to produce 52,000 shaft horsepower (39,000 kW) for a speed of 37 knots (69 km/h 43 mph), although the Regele Ferdinands reached 38 knots (70 km/h 44 mph) during their sea trials. The ships were powered by two Parsons geared steam turbines, each driving a single propeller, using steam provided by four Thornycroft boilers. Their crew numbered 212 officers and sailors. They displaced 1,400 long tons (1,422 t) at standard load and 1,850 long tons (1,880 t) at deep load. The Regele Ferdinand-class ships had an overall length of 101.9 metres (334 ft 4 in), a beam of 9.6 metres (31 ft 6 in), and a mean draught of 3.51 metres (11 ft 6 in).
Four destroyers were intended to be ordered, but only two were actually built. The guns were imported from Sweden and the fire-control system from Germany. The design was based on the British Shakespeare-class destroyer leaders, but differed in the arrangement of their propulsion machinery.
The ship was discarded in 1961 and subsequently scrapped.įollowing the end of World War I and the re-purchase of two Aquila-class cruisers from Italy, the Romanian Government decided to order also two modern destroyers from the Pattison Yard in Italy, as part of the 1927 Naval Programme. Renamed Likhoy, the ship served until she was struck from the navy list in 1951 when she was returned to the Romanians who renamed her D21 in 1952. Later that year Romania switched sides, but despite that the Soviets seized the Romanian ships and incorporated them into the Soviet Navy. Regele Ferdinand covered convoys evacuating Axis troops from Sevastopol and was badly damaged in May when she rescued some troops herself. In early 1944 the Soviets were able to cut off and surround the port of Sevastopol on the Crimean Peninsula.
The ship may have sunk two Soviet submarines during the war. After the Axis invasion of the Soviet Union on 22 June 1941 ( Operation Barbarossa), she was limited to escort duties in the western half of the Black Sea during the war by the powerful Soviet Black Sea Fleet which heavily outnumbered Axis naval forces in the Black Sea. NMS Regele Ferdinand was the lead ship of her class of two destroyers built in Italy for the Romanian Navy in the late 1920s.
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