Boeing 707-320-long-haul passenger aircraft developed by the American company Boeing. The aircraft is a further development of the original model 707-120. It is characterized by the increased size of the fuselage and wing, large fuel reserves and flight range. To develop the aircraft company "Boeing" began in December 1955 at the suggestion of pan American airlines, which planned to operate flights across the Atlantic to Europe. The first flight of the aircraft 707-300 performed January 11, 1959, and in mid-July received the FAA certificate. Operation began at the end of August 1959. The aircraft used Pratt Whitney engines ЈТ4А-3, -5, -9, -11 and -12 thrust 7150-7950 kgs.
In order to improve the flight characteristics of the company carried out the revision of the aircraft, and at the end of January 1962, the first flight of the Boeing 707-320 aircraft with more powerful turbojet JT3D-3. The aircraft was certified in mid-may 1962, after which it entered service. Aircraft family 707-320 were the most popular among all aircraft type 707. In the mid-1970s, research began on the aircraft 707-700, equipped with a more economical and low-noise turbojet CFM International CFM56-2 thrust of 9990 kg. The prototype aircraft with these engines made its first flight at the end of November 1979. After some tests, further work was discontinued. In order to achieve compliance with existing noise regulations (ICAO Chapter 3), a number of firms have been working for many years to create special noise-attenuating devices for 707-320 aircraft engine nacelles. To date, only Chapter 2 noise requirements have been met. The 707-320V aircraft became the basis for the creation of special aircraft for the US air force. In 1973. the e-3 Sentry (AWACS - drlo system) was developed, equipped with a dorsal rotating radar designed for early detection and tracking of various air targets. The company Northrop Grumman in 1988 was created aircraft electronic intelligence and management E-8 TACAMO (system J-STARS). An EU-18 aircraft was developed to monitor ballistic and cruise missile tests, and an e - 6A Mercury aircraft was developed to provide communication with missile submarines.
On the plane, the usual avionics complex with Electromechanical means of indication is used. This modification was produced in 1962-1975.; total 580 aircraft were delivered (including cargo variants 707-320S), by the beginning of 1996 was in operation 287.
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