A closer look at modern Rolls-Royce & Pratt & Whitney jetliner engines.

Breaking from the variants that came before it, theBoeing 747-8 is exclusively powered by the General Electric GEnx-2B turbofan, a close relative of the GE engine powering the popular Boeing 787 ...

For many 747-400 freighters, the cost of a major engine overhaul can exceed the market value of the airframe itself.

Just as with the automotive industry, there are a variety of aircraft engines designed to run on various types of fuels. Even electric planes are something we're likely to see more of in the future.