Only a half scale prototype – the P.92/2 – was built and tested as check on aerodynamics before the project was cancelled in 1940.

[1] The turret was also expected to be aerodynamically faired to meet the wing so as not to unduly affect performance.

[4] The Boulton Paul design minmised drag by mounting the four cannons in a 13-foot wide shallow domed turret built into a thickened centre wing section.

The contract for the prototypes was cancelled in May 1940[5] due to the need to standardize aircraft production on a few core designs in the face of the German advance through Europe.

The P.92/2 was subsequently flown to Boulton Paul's airfield at Wolverhampton, and in June 1943 it went to the Aeroplane and Armament Experimental Establishment at Boscombe Down for flight testing and assessments.