Pegasus, the heart of the Harrier: the history and development of the world's first operational vertical take-off and landing jet engine

The conception of the Pegasus engine in 1957 upset all the conventions of aircraft design.

It was previously usual for aircraft designers to seek a suitable engine, but this was an engine that sought an aircraft.

This book takes an in-depth look at the engine's original design concept, initial production and flight testing.