Norden's first attempt at an improved bombsight was actually an advance in PDI design. His idea was to remove the manual electrical switches used to move the pointer and use the entire bombsight itself as the indicator. He proposed attaching a low-power sighting telescope to a gyro platform that would keep the telescope pointed at the same azimuth, correcting for the aircraft's movements. The bombardier would simply rotate the telescope left or right to follow the target. This motion would cause the gyros to precess, and this signal would drive the PDI automatically. The pilot would follow the PDI as before.