:
B21的生产模式和B1完全不同。21架B21同时在生产线不是我说的。是Northrop的CEO在股东大会上说的。
The B-21 program continues to execute ahead of schedule. We now have 21 airframes in various stages of production at our Palmdale facility, including six test vehicles and 15 LRIP units under Lots 1 and 2."
— Kathy Warden, CEO, Northrop Grumman