img Sources https://www.popularmechanics.com/military/aviation/a19133400/b-21-stealth-bomber-testing-edwards-afb/?src=nl&mag=pop&list=nl_pnl_news&date=030718 https://www.ebay.co.uk/itm/B-21-Raider-Stealth-Bomber-Combined-Test-Force-Patch/202269436200?hash=item2f1832a928:g:whwAAOSwgc1arpa2 http://www.thedrive.com/the-war-zone/14919/the-b-21s-three-decade-old-shape-hints-at-new-high-altitude-capabilities https://www.stripes.com/news/air-force/air-force-seeks-10-billion-budget-boost-to-increase-force-size-invest-in-future-weapons-1.572323 https://nationalinterest.org/blog/buzz/stealth-suprise-us-air-force-builds-first-b-21-raider-test-bomber-66131 https://assets.documentcloud.org/documents/6549373/Air-Force-B-21-Raider-Long-Range-Strike-Bomber.pdf