Book excerpt: This report is the ninth in a series of investigations of eye movements of pilots during instrument flight. The frequency, duration and sequence of eye fixations made by 15 pilots when flying day straight and level, level turns, straight dives and 180 degree time turns, and during night straight and level and level turns with a new panel arrangement are summarized. Comparisons are made between the maneuvers flown under day and night conditions. Also, for comparison of standard and experimental panel arrangements, data previously obtained using the standard Air Force panel during routine maneuvers under day conditions are included. Under all conditions the directional gyro, gyro horizon, vertical speed, airspeed and altimeter are the most used instruments.