Would extra destroyers for carrier availability or more OPVs for presence be more useful to the modern Royal Navy?
Short answerBoth are needed; he would add three Type 45s and spend the remaining equivalent budget on roughly five OPVs.
NotesLimited money still has to support carrier availability and routine naval presence, which require different ship types. Three additional Type 45s would consume about three-quarters of the notional four-destroyer budget. The remaining roughly half-billion could then buy about five OPVs, strengthening high-end escort capacity and routine maritime presence.