The Boeing 720 was designed to be a smaller, lighter medium range variant of the Boeing 707.
Although it just looks like a smaller Boeing 707 it was dramatically redesigned and only has the same structural base as the 707. It was originally named Boeing 707-020 but soon changed to Boeing 720.
|Developing Nation:||United States|
|First Flight:||Boeing 720: November 23rd 1959.
Boeing 720B: October 6th 1960 (more powerful engines).
|First Delivery:||July 5th 1960 (United Airlines).|
|Wing Span:||39,87 m.|
|Wing Area:||234,2 m².|
|Engine(s):||Boeing 720: 4x Pratt & Whitney JT3C.
Boeing 720B: 4x Pratt & Whitney JT3D-1 turbofans (each 75,6 Kn) or: 4x Pratt & Whitney JT3D-3 (each 80 Kn).
|Weight:||51.203 kg (Operating empty).|
|Max. Take off weight:||10.6140 kg.|
|Max. Landing weight:||79.380 kg.|
|Cruise Speed:||896 Km/h.|
|Max. Speed:||1.009 Km/h.|
|Operating altitude:||10.500 m.|
|Max. Range:||9.205 km.|
|Boeing 720 production:|
|The B-720 was produced from 1959 to 1969.
In that period 65 B-720’s and 89 B-720B’s were produced (many 720B’s were converted B-720’s).