X-Plane 9.70+ Northrop Grumman E-2C Hawkeye. The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft. This twin-turboprop aircraft was designed and developed during the late 1950s and early 1960s by the Grumman Aircraft Company for the United States Navy as a replacement for the earlier E-1 Tracer, which was rapidly becoming obsolete. Rob "Moffettflyer" Vitale made two of the liveries for this update. By David Austin.