HMS Spiteful (P227)

HMS Spiteful (Pennant number P227) was a third-batch S-class submarine built for the Royal Navy during the Second World War.

Design and description
The S-class submarines were designed to patrol the restricted waters of the North Sea and the Mediterranean Sea. The third batch was slightly enlarged and improved over the preceding second batch of the S-class. The submarines had a length of 217 ft overall, a beam of 23 ft and a draught of 14 ft. They displaced 865 LT on the surface and 990 LT submerged. The S-class submarines had a crew of 48 officers and ratings. They had a diving depth of 300 ft.

For surface running, the boats were powered by two 950 bhp diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 650 hp electric motor. They could reach 15 kn on the surface and 10 kn underwater. On the surface, the third-batch boats had a range of 6000 nmi at 10 kn and 120 nmi at 3 kn submerged.

The boats were armed with seven 21-inch (533 mm) torpedo tubes. A half-dozen of these were in the bow and there was one external tube in the stern. They carried six reload torpedoes for the bow tubes for a total of thirteen torpedoes. Twelve mines could be carried in lieu of the internally stowed torpedoes. They were also armed with a 3-inch (76 mm) deck gun. It is uncertain if Spiteful was completed with a 20 mm Oerlikon light AA gun or had one added later. The third-batch S-class boats were fitted with either a Type 129AR or 138 ASDIC system and a Type 291 or 291W early-warning radar.

Career
She sailed for Ceylon, arriving in April 1944. She was assigned to the 8th Flotilla, HMS Maidstone (1937). She made two patrols, then transited to Fremantle. She sank a number of Japanese vessels with gunfire on 30 June, 2 July, and 14 December.