Boeing has released several variations of the jumbo jet during its ... boards was the 747 Trijet. In the 1960s and 1970s, the company toyed with building a three-engine commercial plane.

the 747-8, has four new GEnx-2B engines and reaches a max cruising speed of Mach 0.86 (roughly 655 mph). This also makes it ...

The Boeing 747 has become one of the ... pioneered the use of the term "jumbo jet." But the "Queen of the Skies" is growing old, and its four engines are thirstier than newer, more fuel-efficient ...