Batch versus flight in warship production

What is the difference between a warship batch and a flight?

There is little substantive difference; flight is the American term and batch the British one.

The two terms describe essentially the same procurement idea: a group of ships built to a common iteration of a design. 'Flight' is the common American label, while Britain usually says 'batch.' An American flight may sometimes describe a somewhat larger group. The terminology matters less than the shared idea that later orders can incorporate accumulated changes without creating a wholly new class name.