The book discussion uses the post-war Royal Navy to sketch a destroyer design lineage. The Daring class appears as the end of the large general-purpose gun-and-torpedo destroyer, with the County class adding guided missiles while retaining guns. HMS Bristol continues that large fleet-destroyer line. In this interpretation, the smaller Type 42s step down to a different lineage rooted in War Emergency destroyers, so a shared destroyer label does not imply uninterrupted design descent.
Notable Point · 28:10-29:18
From Daring to County - and why Type 42 breaks the line
A short Royal Navy design aside traces the large fleet-destroyer line from the gun-armed Darings through the missile-armed Counties and Bristol, while placing Type 42 on a smaller lineage.