
The National Nuclear Security Administration (NNSA) still plans to produce the first copy of a refurbished Navy submarine warhead in 2021, and the first copy of a refurbished nuclear gravity bomb for the Air Force in 2022, a senior official with the civilian nuclear-weapon agency said Wednesday. Those were the new dates, announced in February, for the first production units [FPU] of both the W88 Alt-370 submarine-launched ballistic-missile warhead and the B61-12 nuclear gravity bomb, as the refurbished weapons will…