Type 15 FrigatesPosted: April 11, 2016
What the ships looked like before conversion:
The conversions entailed:
- The removal of all the existing superstructure, weaponry, and masts
- The complete overhaul of the existing propulsion system
- The extension of the existing forecastle deck towards the stern of the ship, leaving only a small quarterdeck at the stern
- The addition of a new single-level superstructure which incorporated a fully enclosed bridge, an operations room, and a sonar room
- The addition of new a lattice mast to carry the enhanced radars, HF/DF, and communications equipment that was now fitted
- The addition of two x triple Limbo anti-submarine mortars, which were fitted aft (N.B. Rapid, Roebuck, Venus, Verulam, Vigilant, Virago, Volage, Wakeful, Whirlwind, Wizard, and Wrangler were fitted with 2 x triple Squid anti-submarine mortars in lieu of the Limbos)
- The addition of a twin 4-inch dual purpose gun (mounted aft) and a twin 40mm Bofors anti-aircraft gun (mounted forward)
What the ships looked like after conversion:
The conversions were undertaken between 1949 and 1957, and the last ships (Rapid, Grenville, and Ulster) were broken up in 1981
The Royal Canadian Navy converted two destroyers (Algonquin (ex-Valentine) and Crescent) and the Royal Australian Navy converted four Q-class destroyers (Quadrant, Quickmatch, Queenborough, and Quiberon) along similar lines.
The Canadian ships differed somewhat in terms of their armament (Algonquin and Crescent had a US twin 3-inch gun in place of the Bofors anti-aircraft guns and were fitted with Squid anti-submarine mortars) and their radar fit, the latter including more American equipment. Of the four Australian ships, Quadrant was equipped with Squid anti-submarine mortars and the other three had Limbo anti-submarine mortars.