AdvertisementA current upgrade effort, including new Rolls-Royce F130 engines and new radar and avionics, intends to keep the BUFFs flying into the 2050s. Ten of the 13 programs meant to keep the B-52 flying into the 2050s are over budget, behind schedule or underperforming, a federal watchdog found, including new engines and radar. These are warbirds worth keeping in service. The Center Square story linked above continued:AdvertisementFor all the risk, the B-52 is a small line in the Pentagon's budget. These airplanes are effectively a bunch of spare parts flying in formation, but that doesn't mean they aren't worth keeping around.