Bomb Sight, Sighting Head for T-1 Bombsight System F4U Corsair on the underside of the

on the underside of the base Russian Cyrillic characters are stamped in the metal

when the firing switch is depressed

was electrical

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

The MC-125 Tuning Unit is a component of the WWII-era airborne communication system Receiving and Transmitting Command Set SCR-AJ(and AL)-183

Bomb Sight, Sighting Head for T-1 Bombsight System F4U Corsair on the underside of theThe 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.