Originally Posted by Zeus
Just like some airplanes that been in service for 50 yrs and scheduled to remain in service at least another Fifty.
Them KC-135's are getting pretty damn old. I believe we've got a replacement lined up for them though.
I think they canx'd the plan to replace the B-52's.
Edit: Yep, being rebuilt over the next few years, expected to remain in service into the 2040's.