Where a 4,000-horsepower Bristol Orion might serve at sea

What naval-aircraft role could use a 4,000-horsepower Bristol Orion radial engine?

A fighter if jets were delayed, or more plausibly a twin-engine carrier radar aircraft once jets took over the fighter role.

The role of a 4,000-horsepower radial piston engine depends on whether jet aircraft arrive on their historical schedule. Without jets, the Orion could power a very high-performance fighter. In a jet-age fleet, its more plausible role is driving a large twin-engine radar aircraft able to lift substantial sensors and equipment from a carrier.