Bomb Release Interval Control Panel Type B-2A Ki-61 Tony published September 1944

published September 1944

a green light would illuminate

and have not found any additional information on them on the internet

which has some wearmarks

As the airspeed increases

Bomb Release Interval Control Panel Type B-2A Ki-61 Tony published September 1944This is an original WWII era Bomb Release Interval Control, Type B 2A, as used across nearly all US bomber aircraft, including B 17, B 24, B 25, B 26, and B 29 and any US Navy counterparts. The Bomb Release Interval Control permitted a bombardier to control the number of bombs dropped per release and their impact spacing. This would be used to set up a carpet bombing run, for example, over a large railroad marshalling yard, vs a more concentrated drop