Boeing 720B

Boeing 720-023B, Pratt & Whitney Canada testbed. C-FETB.

The Boeing 720 was designed to be a smaller, lighter medium range variant of the Boeing 707.

Although it just looks like a smaller B-707 it was dramatically redesigned and only has the same structural base as the 707. It was originally named B-707-020 but soon changed to B-720.

Here is the technical data of this aircraft.

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)
Crew:	3
Passengers:	167
Wing Span:	39,87 m
Wing Area:	234,2 m²
Length:	41,68 m
Height:	12,67 m
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:	51203 kg (Operating empty)
Max. Take off weight:	106140 kg
Max. Landing weight:	79380 kg
Cruise Speed:	896 Kph
Max. Speed:	1009 Kph
Operating altitude:	10500 m
Max. Range:	9205 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)

Research: M. van Leeuwen / Rob Vogelaar