How the Rolls-Royce Trent XWB's extreme bypass ratio creates problems no other jet engine faces

It's all about the durability.
MSN on MSN

They fired up an F1 car with a jet engine - seconds later it was burning

Building a 3,000-horsepower jet-powered machine was always going to be risky, but nobody expected the project to catch fire ...

Airline chiefs slam engine makers for delays at industry summit

By Allison Lampert, Gabriel Araujo, Rajesh Kumar Singh and Luciana Magalhaes RIO DE JANEIRO, June 8 (Reuters) - Commercial ...
AOL

The Engine Of The Future Has One Major Problem It Can't Overcome - Yet

In the endless pursuit of faster, more efficient travel, engineers have been cooking up all kinds of new forms of propulsion. One of the most interesting to emerge in the last decade is the electric ...
American Machinist

DoD Issues $2.8B for Jet Engine Supplies

The U.S. Dept. of Defense approved a $2.85-billion contract for CFM International to provide F108 engine supplies through October 2029, a contract that includes one five-year option. CFM International ...