美国正加速生产B21

Core Insights - The U.S. military and Congress are accelerating the production of the B-21 stealth bomber, with a planned investment of $10.3 billion in fiscal year 2026 for development, manufacturing, and capacity enhancement [1] - The production rate for the B-21 is projected to be approximately 7 aircraft per year, with production potentially concluding in the mid-2030s based on a plan to purchase 100 aircraft [1] - The Trump administration's tax legislation provided a total of $4.5 billion to accelerate B-21 manufacturing capabilities, with $2.4 billion allocated for research and $2.1 billion for procurement [1] - An additional $3.4 billion has been requested by the U.S. Air Force for B-21 production, alongside $2.3 billion for research, development, testing, and evaluation [1] - It remains unclear whether Northrop Grumman can accelerate B-21 production at its Palmdale, California facility by simply increasing tools and workforce, or if a separate manufacturing base is required [1]