AIRBORNE SENTRY An E-3 Sentry Airborne Warning and Control System or AWACS flies a mission from Tinker Air Force Base, Okla., May 12, 2009. Due to high demand for its unique capabilities, the E-3 has been deployed almost continually for the past 29 years. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 019947-A-LZP37-715.jpg Photo Gallery