HMS Nunney Castle was a Castle-class corvette ordered by the British Royal Navy during the Second World War.

The ship was transferred to the Royal Canadian Navy before completion and renamed HMCS Bowmanville.

Bowmanville served with the Royal Canadian Navy in the final years of the war and was sold for mercantile use in 1946.

Though the Admiralty would have preferred Loch-class frigates, the inability of many small shipyards to construct the larger ships required them to come up with a smaller vessel.

This powered one vertical triple expansion engine that drove one shaft, giving the ships a maximum speed of 16.5 knots (30.6 km/h; 19.0 mph).

[2] The ships carried 480 tons of oil giving them a range of 6,200 nautical miles (11,500 km; 7,100 mi) at 15 knots (28 km/h; 17 mph).

[4] The Type 147B was tied to the Squid anti-submarine mortar and would automatically set the depth on the fuses of the projectiles until the moment of firing.

[8] Bowmanville was sold for mercantile use on 5 September 1946[9] and served under a Nationalist Chinese flag initially as Ta Shun, then later as Yuan Pei.