Why the Airbus A380's 4-engine layout costs airlines millions more per year than twin-engine rivals

Once a symbol of the peak of aviation, today the A380 is seen more as a liability than an icon. The main reason for this is ...
AOL

Analysis-Trump's vision for a twin-engine F-55 fighter jet faces reality check

WASHINGTON (Reuters) -U.S. President Donald Trump's vision of a new, twin-engine version of Lockheed Martin's F-35 fighter jet may need to be scaled back due to cost and engineering realities, ...