The Boeing E-3 Sentry isn’t just a plane - it’s a high-tech command center in the sky. Known as AWACS (Airborne Warning and Control System), this aircraft is the backbone of U.S. military surveillance ...

The lead and most visible craft of this sort is the Boeing E-3 Sentry, a 707 that's been modified to accommodate a massive, rotating radar dome on its back. Technically known as airborne early ...