HMS Seymour (K563)

History
United States
Name	unnamed (DE-98)
Ordered	10 January 1942[1]
Builder	Bethlehem-Hingham Shipyard, Hingham, Massachusetts
Laid down	1 September 1943[2]
Launched	1 November 1943[2]
Completed	23 December 1943[2]
Commissioned	never
Fate	Transferred to United Kingdom 23 December 1943[2]
Acquired	Returned by United Kingdom 5 January 1946[2]
Stricken	25 February 1946[2]
Fate	Sold for scrapping 10 December 1946[2]
United Kingdom
Name	HMS Seymour (K563)
Namesake	Lord Hugh Seymour (1759-1801), British naval officer who was commanding officer of HMS Leviathan at the Glorious First of June in 1794[3]
Acquired	23 December 1943[2]
Commissioned	23 December 1943[1]
Fate	Returned to United States 5 January 1946[2]
General characteristics
Displacement	1,400 long tons (1,422 t)
Length	306 ft (93 m)
Beam	36.75 ft (11.2 m)
Draught	9 ft (2.7 m)
Propulsion	Two Foster-Wheeler Express "D"-type water-tube boilers GE 13,500 shp (10,070 kW) steam turbines and generators (9,200 kW) Electric motors for 12,000 shp (8,900 kW) Two shafts
Speed	24 knots (44 km/h)
Range	5,500 nautical miles (10,200 km) at 15 knots (28 km/h)
Complement	186
Sensors and processing systems	SA & SL type radars Type 144 series Asdic MF Direction Finding antenna HF Direction Finding Type FH 4 antenna
Armament	3 × 3 in (76 mm) /50 Mk.22 guns 1 × twin Bofors 40 mm mount Mk.I 7–16 × 20 mm Oerlikon guns Mark 10 Hedgehog antisubmarine mortar Depth charges QF 2-pounder naval gun
Notes	Pennant number K563

The second HMS Seymour (K563) was a British Captain-class frigate of the Royal Navy in commission during World War II. Originally constructed as a United States Navy Buckley class destroyer escort, she served in the Royal Navy from 1943 to 1946.

The ship was laid down as the unnamed U.S. Navy destroyer escort DE-98 by Bethlehem-Hingham Shipyard, Inc., in Hingham, Massachusetts, on 1 September 1943 and launched on 1 November 1943.^[2] She was transferred to the United Kingdom upon completion on 23 December 1943.^[2]

Commissioned into service in the Royal Navy as the frigate HMS Seymour (K563) on 23 December 1943 simultaneously with her transfer, the ship served on patrol and escort duty for the remainder of World War II.^[1][2] She sank the German motor torpedo boat S-220 – an S-boat, known to the Allies as an "E-boat" – on 1 March 1945.^[4] The Royal Navy returned Seymour to the U.S. Navy on 5 January 1946.^[2]

The U.S. Navy struck Seymour from its Naval Vessel Register on 25 February 1946. She was sold on 10 December 1946 for scrapping.^[2]

• Navsource Online: Destroyer Escort Photo Archive Seymour (DE-98) HMS Seymour (K-563)
• uboat.net HMS Seymour (K 563)
• Destroyer Escort Sailors Association DEs for UK^[usurped]
• Captain Class Frigate Association HMS Seymour K563 (DE 98)