Naval History Forums

USN rangefinders in directors were also stabilized. The gyro in the device that put ship's roll and pitch angles into the battery computer/rangekeeper to correct gun positions also were used to position the battery director and its ranging devices. But nothing corrected for the ship vibrations cause...

I came across this forum searching for "stereoscopic vs coincidence rangefinder." Though I would share my experiences with both. The early days of my US Navy 20+ year career as a fire control technician, I hen spent some time using stereoscopic rangefinders. Performed both target ranging a...