Cut-away drawing of a Mk.II Bristol Beaufighter, fitted with Rolls-Royce Merlin XX engines. All other variants of the Beaufighter had Bristol Hercules engines. Probably for security reasons, the drawing omits the aerials of the on-board ("AI") radar equipment routinely fitted to these aircraft.
Air Ministry (of the United Kingdom)
1941
Frontispiece of Air Publication A.P.1721B Vol.1 (Pilot's Notes, 1941 Edition). National Archives ref. AIR10/2668.