Warden, speaking on a Northrop earnings call, noted that the second B-21 started flying in September and “our testing campaign also involves multiple B-21 aircraft undergoing ground tests prior to flying, which is validating performance and minimizing risk.”
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She said the second B-21 advances the test campaign from purely aircraft handling qualities to “integrating weapons and mission systems.”

The progress paves the way for the Air Force to award low-rate initial production Lot 3 and Lot 5 advanced procurement contracts by the end of 2025, Warden said.

“We are in active discussions with the customer that would enable that acceleration of production rate,” Warden added
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If a deal is reached, “we expect to deploy additional investments to achieve the increased rate, with the opportunity to earn improved returns,” suggesting Northrop could earn more per airplane.

She made a distinction between expanding production capacity and talks about increasing the number to be bought, saying “that would be a separate discussion.”