B-21 Raider Weapons Test: What the First Release Means

The U.S. Air Force‘s B-21 Raider stealth bomber has released a weapon in flight for the first time, with a test aircraft flying from Edwards Air Force Base in California releasing a conventional munition in a trial that moves the program into the weapons integration work required before the bomber enters service. The Air Force and the manufacturer, Northrop Grumman, announced the milestone on November 13, without disclosing the type of munition or the date of the drop. The service stated that the release validated its digital models of the aircraft and demonstrated the maturity of an open systems architecture designed to accept new weapons over time. The trial makes the Raider the first new American bomber design to reach weapons testing since the B-2 Spirit, and it comes almost exactly three years after the aircraft’s maiden flight.

Air Force Secretary Troy Meink said of the trial: “This successful test demonstrates our ability to adapt rapidly and hold any target at risk if deterrence fails.” The B-21 Combined Test Force had spent thousands of hours on a digital replica of the bomber to predict the weapon’s trajectory before the live release, an approach meant to shorten the clearance of each new munition. The drop follows the Raider’s first aerial refuelling from a KC-135 Stratotanker on March 10, a mission of five hours and 33 minutes that allowed the test fleet to fly considerably longer sorties, while Northrop Grumman has stated that it completed fatigue testing equivalent to multiple aircraft lifetimes months ahead of schedule. The program currently flies two test aircraft at Edwards, with the second having arrived on September 11, 2025, specifically to expand mission systems and weapons integration testing, and the first having flown on November 10, 2023.

The Raider is set to replace both the B-1B Lancer and the 19 remaining B-2s, leaving the Air Force with two bomber types alongside the B-52H, which is itself being armed with new anti-ship missiles to remain in service into the 2050s. The service plans to buy at least 100 aircraft at an average procurement cost of about $692 million each in 2022 dollars, and in February it agreed with Northrop Grumman to raise annual production capacity by 25 percent, drawing on $4.5 billion that Congress added in 2025 to accelerate the program. Fixed-price terms on the early production lots have proven costly for the manufacturer, which took a $1.56 billion charge on the program at the end of 2023 and a further $477 million in the first quarter of 2025. Air Force Chief of Staff Gen. Ken Wilsbach said: “We are building an impressive fleet that will give our joint force credible, penetrating strike options for decades to come.”

The first operational B-21 is expected at Ellsworth Air Force Base in South Dakota in 2027, where an integration unit, B-21 Integration Detachment 1, was activated on September 9, with Whiteman Air Force Base in Missouri and Dyess Air Force Base in Texas to follow. Northrop Grumman has opened a 265,000 square foot manufacturing facility in Layton, Utah, and has broken ground on a final assembly building of one million square feet at Plant 42 in Palmdale, California. The Air Force states that the B-21 will carry both nuclear and conventional weapons, although its payload, range and engines remain classified and no test involving a nuclear-capable weapon has been announced.