Enchantress, Stork, and Bittern were divided among John Brown on the Clyde, William Denny, and J. Samuel White at Cowes. Within Treasury and treaty limits, the Navy wanted several yards to retain the skills needed to build anti-submarine escorts. Exercises were timed so operational lessons could reach the next construction programme, preserving design knowledge inside the service as well as craft skills in the yards. The effort was already taking shape by 1931 and 1932, before Admiral Henderson became Third Sea Lord, and aimed to carry First World War experience into newer technology.
Notable Point · 3:52-5:47
Spreading sloop construction kept escort-building skills alive
Building the three sloops in different yards was part of a wider Royal Navy effort to preserve the industrial skills needed for rapid wartime escort construction.