From Clemson class to Royal Navy Town class

What was the difference between Clemson-class and Town-class destroyers?

Town class was the Royal Navy designation for transferred American destroyers, modified in service but not transformed into a fundamentally new design.

Town class was the British service identity for transferred American destroyers, including many Clemsons. The Royal Navy altered details it found unsuitable, but the underlying ships remained recognizably American. Changes reflected service preferences and operating practice rather than a wholly new design. Even accommodation standards could expose the different expectations of the two naval cultures. Transfer programs had to reconcile those expectations alongside weapons and machinery.