It was of similar size to the Rolls-Royce Avon, allowing it to be used as a drop-in replacement, but it would have produced about twice the thrust (with reheat) at 21,750 lbf (96.7 kN).
The engine was of similar dimensions to the Rolls-Royce Avon, allowing for a straightforward swap, but it could produce about double the thrust (with afterburners) at 21,750 lbf (96.7 kN).