The United States Navy (USN) operates a specialized fleet of Airborne Early Warning, Command and Control squadrons utilizing the Grumman E-2 Hawkeye aircraft. These squadrons perform roles similar to the Air Force's AWACS but are distinct in their operations from aircraft carriers.
The Navy's aircrew for these missions consists of five officers, significantly fewer than the dozen or more aboard land-based AWACS. The training for these aviators is extensive due to the demanding nature of operating an E-2 Hawkeye.
Since 1964, the E-2 Hawkeye has been central to the Navy's airborne surveillance capabilities. The newer E-2D model features advanced radar and avionics systems. Northrop Grumman describes it as “...a game changer in how the Navy conducts battle management command and control."