A dozen Northrop Grumman B-2 Spirit stealth bombers participated in an elephant walk and fly-off at Whiteman ... and a service ceiling of 50,000 ft, the bomber can fly at speeds of up to Mach ...

the U.S. Air Force conducted an "elephant walk" involving eight B-2 Spirit stealth bombers, demonstrating the visible deterrent power of these aircraft. -The B-2, the only stealth bomber capable ...