The Boeing E-3 Sentry is an American military airborne warning and control system (AWACS) aircraft that provides all-weather surveillance, command, control and communications, to the United States, United Kingdom, France, Saudi Arabia, and NATO air defense forces. Production ended in 1992 after 68 had been built.
The E-3 Sentry is a modified Boeing 707-320B Advanced commercial airframe. Modifications included a rotating radar dome, single-point ground, and air refueling points, and a bail-out chute.
Generators on each of the four engines provide the one megawatt of power required by the radar. The Pulse Doppler radar has a range of more than 250 miles (400 km) for low-flying targets at its operating altitude (essentially to the radar horizon), and the Pulse (BTH) beyond the horizon radar has a range of approximately 400 miles (650 km) for aerospace vehicles flying at medium to high altitudes (essentially above the radar horizon). The radar combined with an SSR subsystem thus providing a look down to detect, identify and track enemy and friendly low-flying aircraft while eliminating ground clutter returns.
The E-3 as equipped in USAF and NATO service can fly without refueling for 8 hours or 4,000 miles, while newer examples in British, French and Saudi service, equipped with CFM56-2 engines can fly for 10 hours or 5,000 miles without refuelling. Its range and on-station time can be increased through inflight refueling and the crews can work in shifts by the use of an on-board crew rest area. The range and loiter time can be adjusted to alter the flight plan as required for operational reasons.
Saudi arabia also have this airplane.
youmsx 2 years ago
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sgtTorello 2 years ago