She was fitted out and handed over to "a mainly untried crew" on 15 July 1942. Although the ship was fitted with radar, it was relatively primitive, so the need for a good visual watch was regarded as crucial. Her first captain was Lieutenant Commander Stephen Beattie who would go on to win the Victoria Cross in the St Nazaire raid. He was replaced by Lt Cmdr Mark Thornton DSC on 28 April, (he had come from the destroyer ; his DSC was for sinking a German U-boat). He worked the ship's company hard in training.