Nuclear-gas propulsion trades endurance for access limits

Do Type 45 and carrier machinery offer a major fuel-consumption advantage over gas-turbine-powered Arleigh Burkes?

The brief comparison judges them broadly similar, then proposes nuclear base power with gas turbines for additional demand, subject to nuclear port-access restrictions.

The reply to the fuel-consumption comparison judges the systems broadly similar, without providing operating data. It then considers an integrated electrical system in which nuclear machinery supplies hotel and normal operating power, with gas turbines meeting rapid additional demand. This is a possible arrangement rather than a selected Type 83 plant or a quantified efficiency result. Introducing nuclear propulsion would restrict access to some ports and complicate presence and diplomatic missions.