Doomsday Plane

A routine training flight by the U.S. Navy's E-6B Mercury "doomsday plane" captured the attention of sky-watchers this week in Colorado. (U.S. Navy photo)

Navy ‘Doomsday Plane’ Spotted in Colorado

A routine training flight by the U.S. Navy’s E-6B Mercury “doomsday plane” captured the attention of sky-watchers this week in Colorado. The four-engine command-and-control plane…