Modifications
The Hunt class was a very satisfactory design, but had limited surplus displacement to allow any major modifications. All ships had a pair of single Oerlikon guns added in the bridge wings as they became available, and Radar Type 285 added to the Rangefinder-Director Mark I carried on the bridge for the main armament. The air warning Radar Type 286 was added at the masthead, later replaced by Type 291, and Cotswold, Silverton, Bleasdale and Wensleydale had their searchlight replaced by Radar Type 272, a centimetric target indication set.
Those vessels employed on East Coast convoy work, all the Type Is, the Type IIs Avon Vale, Blencathra and Liddesdale and the Type IIIs Bleasdale and Glaisdale were fitted with a single QF 2 pounder "bow chaser" gun for anti-E-boat work. Most Type IIIs later had their single Oerlikon guns replaced with twin powered mountings Mark V, and some had two single 40 mm Bofors guns added, one each forward of the wheelhouse and on the quarterdeck.
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