Sloops and destroyers against a converted merchant raider

The surface-raider example centres on a converted merchant ship facing three or four convoy sloops. Such a raider might defeat the escorts, but the time taken and damage received could prevent a clean escape. Damage could also leave it vulnerable to a cruiser approaching to help the convoy. A supporting destroyer adds a different threat by moving in and out of smoke for torpedo attacks while the sloops engage with guns. The argument concerns the combined resistance of several escorts against an auxiliary raider, whose protection differs from that of a purpose-built armoured warship.