Five B-21 stealth bomber prototypes are now in production

The US Air Force’s (USAF’s) newly appointed Secretary of the Air Force, Frank Kendall, has confirmed that there are now five Northrop Grumman B-21 Raider test aircraft in production at Air Force Plant 42 in Palmdale, California. Kendall confirmed the current production numbers while providing an update on the programme’s progress during his State of the Forces address at the Air Force Association’s Air, Space and Cyber Conference in National Harbor, Maryland, on September 20. During his address, Kendall said: