Why The B-52's New Rolls-Royce Engines Will Make America's 70-Year-Old Bomber More Efficient Than Ever

The U.S. Air Force is moving forward with a commercial engine replacement program to overhaul the Boeing B-52 Stratofortress, swapping the legacy Pratt & Whitney TF33 turbofans for Rolls-Royce F130 engines under the B-52J designation. The effort, carried out with Rolls-Royce and Boeing, aims to improve performance while cutting operating costs and boosting durability and mission readiness. The new F-130 is described as using a modern high-bypass design, with estimates citing about a 30% fuel-consumption reduction. The B-52J will also receive updated systems, including data link and radar, and is planned to fly at least to 2050, potentially beyond.