the core function of the specialized Boeing 707. This is particularly significant because neither images nor videos of this key system have previously been published online in such detail.

Pratt & Whitney Aircraft began development of its first production turbofan, the JT3D, in the late 1950s, by taking advantage of the service-proven JT3 (J57) gas generator, and adding a two-stage ...

The Boeing 707 is a mid-size, long-range, narrow-body four-engine jet airliner built by Boeing Commercial Airplanes. It was introduced in 1962, and Pan Am purchased the first example for service.

Pratt & Whitney Aircraft began development of its first production turbofan, the JT3D, in the late 1950s, by taking advantage of the service-proven JT3 (J57) gas generator, and adding a two-stage ...