Russian leaders have taken notice of the U.S. Air Force’s plans to build a next generation bomber, announcing they have set their sites on building a hypersonic bomber.

Russian Deputy Prime Minister Dmitry Rogozin said his country won’t settle for a bomber like the B-2. Air Force leaders want to pursue the same hypersonic technology the U.S. military is trying to develop.

Rogozin’s comments come conspicuously close to a failed hypersonic test flight the U.S. Air Force held on Aug. 15. The test flight vehicle dropped into the Pacific Ocean 15 seconds after it was released from a specially outfitted B-52 and never reached the Mach 6 speeds U.S. Air Force officials had hoped. 

To fly hypersonic means flying five times the speed of sound (Mach 5) or faster than 3,840 miles per hour.