Comparable escort ships could receive a destroyer-escort designation in American service and a frigate designation in British service. The Hunt class adds an escort destroyer derived through a different design route. These origins can explain institutional preferences without establishing a rigid boundary between the finished ships. The same problem appears where large destroyers overlap with small cruisers. The Royal Navy's simultaneous use of sloops, corvettes, frigates, escort destroyers and fleet destroyers illustrates how many categories could coexist.
Notable Point · 21:22-24:23
Why destroyer escorts and frigates overlap
Different national names and design ancestries make a universal boundary between frigates and destroyer escorts difficult to sustain.