Disk Speed Indicator Mk XV for use with Norden Sight Eurofighter Typhoon including heavy bombers B-17

including heavy bombers B-17

but requires the correct electrical input to function properly

SCR-274 was a multi-channel

including*:

really made its mark in the Korean War

Disk Speed Indicator Mk XV for use with Norden Sight Eurofighter Typhoon including heavy bombers B-17The Disk Speed Indicator Mk XV was used by WWII US Army Air Force and Navy bombardiers to verify and calibrate the disk speed of the Norden Bomb Sight during flight before initiating the bomb run. The disk speed is the parameter which determined the duration of flight between sighting of the target and automatic release of the aircraft's ordnance. With the bomb sight switched on, the bombardier would affix the top axle to the small female receptacle