Bomb Sight, Sighting Head for T-1 Bombsight System F4U Corsair as well as a BAC

as well as a BAC order number (Boeing Aircraft Corp)

when the firing switch is depressed

This fuel gage indicates total fuel quantity contained in the tank located in one of two Outboard wing tanks

In the standby mode

the faceplate rotates to indicate the selected frequency within the small metal frame (to which a small lamp could be affixed for illumination)

Bomb Sight, Sighting Head for T-1 Bombsight System F4U Corsair as well as a BACThe World War II T 1 bombsight system was originally designed by the British (as the Mark XIV bombsight) and first entered service in 1942. It was used in versions of the US Army Air Force B 24 Liberator, B 25 Mitchell bombers, as well as the British Avro Lancaster and deHavilland Mosquito bombers. This T 1 Sighting Head was made by AC Spark Plug division of GMC. The system included a sighting head connected to a mechanical (pneumatic) computer.