RAF Bombsight Mk XIV Emergency Computor Ref 9/2648 F7U Cutlass The serial # is 1538/58

The serial # is 1538/58

This is an original WWII-era Radio Operator's Information File published in 1944 (updated 1945) by the US Army Air Force

and the Boeing B-29 Superfortress

AC 0-15 Volts

RAF Bombsight Mk XIV Emergency Computor Ref 9/2648 F7U Cutlass The serial # is 1538/58This is an authentic original WWII era Emergency Computor (sic) designed for use with the Mark XIV Bombsight in the British RAF's Avro Lancaster Bomber. It appears to be a manual back up device for use in an emergency, possibly if the mechanical computer within the bombsight malfunctioned. One side shows speed as measured in knots, while the computer on the other side shows speed as measure in MPH. This plastic or bakelite device has a circular slide