Downloaded from https://www.everyspec.com UNCLASSIFIED AD NUMBER AD865425 LIMITATION CHANGES TO: Approved for public release; distribution is unlimited. FROM: Distribution authorized to U.S. Gov't. agencies and their contractors; Administrative/Operational Use; 17 DEC 1969. Other requests shall be referred to Army Materiel Command, Alexandria, VA. AUTHORITY AMC ltr dtd 14 Jan 1972 THIS PAGE IS UNCLASSIFIED