A viewer compares the Fletcher's general utility to the M4 Sherman's value in Allied armies: broad capability combined with mass availability. American construction capacity could produce enough ships to cover both high-capability and numerous routine destroyer roles. The Fletcher sat between a large fleet destroyer and a standard fleet destroyer, and American yards could build enough to fill both roles. The Royal Navy could not assume the same yard economics, so copying the design would not reproduce the American force-level result.
Notable Point · 41:30-45:43
Fletcher capability worked because America could build it at scale
The Fletcher class combined large-destroyer capability with fleet-destroyer numbers because US yards could mass-produce the same balanced design.