General Lyles He serves on the Board of Directors for several corporations, including: General Dynamics Corporation, KBR Corporation, Battelle Memorial Institute and is the outgoing Chairman of USAA (United Services Automobile Association). He is also cochair of the NACD Blue Ribbon Commission initiative that is exploring critical considerations and key requirements for board and committee leaders in an environment characterized by expanding board workloads and higher expectations for directors from nearly every constituency.

He entered the United States Air Force in 1968 as a distinguished graduate of the Air Force ROTC program. He served in various assignments, including Aide-De-Camp to the Commander of Air Force Systems Command. He served as Program Director of the Medium-Launch Vehicles Program and Space-Launch Systems offices in 1987 during the recovery from the Challenger Space Shuttle accident. General Lyles became Vice Commander of Ogden Air Logistics Center, Hill AFB, Utah. He served as Commander of the center from 1993 until 1994, then commanded the Space and Missile Systems Center at Los Angeles AFB, California, until 1996. General Lyles became the Director of the Ballistic Missile Defense Organization in 1996. In May 1999, he was assigned as Vice Chief of Staff at U.S. Air Force Headquarters. In April 2000, he became the Commander, Air Force Materiel Command, Wright-Patterson Air Force Base, Ohio. The command conducts research, development, test and evaluation, acquisition management services and logistics support for the Air Force. He retired in October 2003.

General Lyles has received many awards and decorations, including the Defense Distinguished Service Medal, the Distinguished Service Medal, the Defense Superior Service Medal, and the Legion of Merit with oak leaf cluster. He was named Astronautics Engineer of the Year by the National Space Club in 1990, and received the Roy Wilkins Renown Service Award for outstanding contributions to military equal opportunity policies and programs from the NAACP in 1994. He was named Black Engineer of the Year/Lifetime Achievement in 2003. General Lyles received the General Thomas D. White Award for distinguished service in national security from the U.S. Air Force Academy in 2012.

General Lyles served on the Review of U.S. Human Spaceflight Plans Committee (“Augustine Committee”) in 2009 developing the agenda for the human spaceflight missions of NASA. He also chaired the National Research Council’s Committee on the Rationale and Goals of the U.S. Civil Space Program in 2009. General Lyles was appointed to the Defense Science Board in 2009, and appointed by the White House to the President’s Intelligence Advisory Board from December 2009 to May 2013. General Lyles was elected to the National Academy of Engineering in March 2011. He chaired the Aeronautics and Space Engineering Board of the National Academy of Engineering from 2010 to 2016. In 2013, he was appointed to the Secretary of State’s International Security Board. General Lyles currently Chairs the NASA Advisory Council where he has been a member since 2005. He was appointed a member of the Air Force Scientific Advisory Board in 2016. He is a member of the User Advisory Group to the National Space Council.
General Lyles is a graduate of Howard University where he received a BS in Mechanical Engineering ; and , New Mexico State University where he received an M.S. in Mechanical Engineering.