The purpose of the looking at the future...is to disturb the present!

Gaston Berger (1896-1960), francuski futurolog

10 Years to Build 744 B-52s But 15 Year for 76 B-52s to Get New Engines

It took 10 years to build 744 B-52s from 1952-1962 but now it will take 15 years from contract being awarded to give 76 remaining B-52 engine upgrades. The Rolls-Royce F130 engine upgrade for the B-52 Stratofortress is replacing about 600 aging Pratt & Whitney TF33 engines with more efficient, reliable F130 engines. This will ...

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Link :
https://www.nextbigfuture.com/2025/08/delays-on-new-f130-engines-for-the-b-52.html