This documnet has been declared "CANCELLED" as of December 2011 and has been superseded by SAE ARP 6161. By this action, this document will remain listed in the Numerical Section of the Aerospace Standards Index noting that it is superseded by SAE ARP 6161.To bring to the attention of the aircraft designer and user the problems that can result from the fight crew experiencing glare. To improve visibility conditions for the flight crew by minimizing conditions which contribute to glare.