The American B-21 Raider bomber, worth $700 million, made its first flight. This is reportedly the world's first sixth-generation bomber. The B-21 Raider long-range stealth bomber was developed as part of the Long Range Strike Bomber program. Northrup Grumman Corporation received a contract for its development in October 2015. The US Congress in its report said that the new B-21 Raider should by 2040 completely replace the fleet of old strategic bombers - the B-1 Lancer, created almost 50 years ago, and the B-2 Spirit, which was created more than 30 years ago.