Why does the Boeing 747-400 have 3 engine types?

One iconic plane, three very different engines. Unravel the mystery of the 747-400's multi-engine design and the strategic ...
Hosted on MSN

Do Smaller Jet Engines Spin Faster Than Larger Ones?

Jet engines are designed to produce sufficient power to lift the aircraft off the ground and keep it airborne during flight. To achieve this, they must run at very high speeds. The speed of the engine ...