A large frigate serves as the principal high-capability combatant for many navies. The American requirement examined here is an escort below the US Navy's strongest surface ships. That difference helps explain why studying foreign frigate programmes alone can miss the intended role. The Japanese approach offers a concept to emulate even if its exact design is never adopted. Japan is judged here to retain an unusually balanced low, middle, and high force structure. Possible explanations for the missing middle tier include greater difficulty making its financial case than that of a top-end combatant or basic patrol ship, or reduced attention to this fleet role. Neither possibility is resolved here.
Notable Point · 1:48:02-1:50:17
Fleet concepts and the financial case for medium escorts
Differences in fleet roles explain the Japanese comparison and lead to an open question about why medium escorts can be harder to justify.