Bomb Sight, Course Setting, Mk VIIC British RAF 1940, "Wimperis" Northrop The face of this indicator

The face of this indicator is similar if not identical to the mach indicator seen on the instrument panels of the Avro Vulcan strategic bomber and the Hawker Hunter jet fighter (see photos)

was a component of the Zero Reader Flight Computer

and has a serial number prefix of AF43

The knob would rotate the face of the dial while the pointer remains fixed to set the present field elevation

The lettering is slightly worn away

Bomb Sight, Course Setting, Mk VIIC British RAF 1940, "Wimperis" Northrop The face of this indicatorThe Course Setting Bomb Sight, Mk VIIC was used in British RAF and Royal Navy and RCAF bombers during WW2, such as the Short Stirling, Fairey Battle, Bristol Beaufort, and Avro Lancaster. It is a complete kit the drawer in the wooden case contains the metal scales with different ranges of True Air Speed and Altitude which were planned for the bombing run. These had to be selected and installed on the sight well before the final approach. This