Wren was listed with the original Black Swans but completed after modified vessels, leaving her visually close to some of them. The stated standard displacements were 1,250 tons for the originals and 1,350 tons for the modified ships, while Wren fell between them at 1,300 tons. Her official top speed remained 19 knots. Her sixty-depth-charge capacity, supported by two throwers and two rails, also sat between the nominal figures for the two groups. Construction sequence and individual fit can therefore complicate a clean original-versus-modified class division.
Notable Point · 29:42-31:01
HMS Wren’s hybrid Black Swan characteristics
Completed later than some modified ships, HMS Wren complicates neat distinctions between the original and modified Black Swan designs.