The Fairey Gannet traded jet speed for endurance

What design mentality produced the Fairey Gannet?

It was built to cover long-endurance carrier roles where a jet was less efficient than a large turboprop aircraft.

The Gannet design began by separating carrier roles that genuinely needed jet speed from those that did not. Anti-submarine patrol and airborne surveillance reward endurance, low-speed handling, and long time on station. A large turboprop aircraft with coupled propellers could remain aloft far longer than a contemporary jet using the same carrier resources. The result looks unconventional, but its propulsion and size follow a clear mission analysis rather than an attempt to make one fashionable technology perform every task.