Media Advisory: AEDC Change of Command event announced Published July 11, 2017 By Raquel March AEDC/PA ARNOLD AIR FORCE BASE, TENN. -- Col. Scott A. Cain will become the new commander of the Arnold Engineering Development Complex during a Change of Command ceremony at 9 a.m., July 14 at Arnold Air Force Base, Tennessee.The outgoing commander, Col. Rodney F. Todaro, will relinquish command to Cain at the AEDC Large Rocket Motor Test Facility, J-6. Maj. Gen. David A. Harris, commander of the Air Force Test Center, Edwards Air Force Base, California, will preside over the ceremony.The event is not open to the public. Press representatives are invited to attend and must contact the AEDC Public Affairs office at (931) 454-4204 by 4 p.m. July 13 for access to the ceremony.For more information, contact AEDC Public Affairs at (931) 454-4204.