The 45 year old Rockwell B-1B Lancer aircraft and the 30 year old Northrop B-2 Spirit aircraft are being retired. They are to be replaced by the new B-21 Raider. While this new model is being developed, the 70 year old Boeing B-52 Stratofortress aircraft acts as a back-up.
This scene above clearly puts the innovators of the 70 year old Boeing B-52 Stratofortress well AHEAD of its time. This is incomparable to those of 45 year old Rockwell B-1B Lancer and the 30 year old Northrop B-2 Spirit aircrafts of their times... Pui...!
Boeing B-52 Stratofortress is the LONGEST longest serving combat aircraft, EVER! Even more amazing is that 70 year old Boeing B-52 Stratofortress will most likely to be in FULL service well into its 100th year!
[Accessed: 30 NOV 2019]