Boeing has secured a $2.04-billion US Air Force contract to continue development of the B-52 engine replacement program, reinforcing efforts to extend the operational life of America’s iconic strategic bomber. The award supports post-critical design review activities, including full system integration and flight testing using two B-52 aircraft fitted with Rolls-Royce F130 engines.
The work will be carried out across several US locations—Oklahoma, Texas, Washington, and Indiana—with the project expected to run through 2033. An initial $35.8 million funding tranche has been allocated, while additional budget releases are planned beginning in FY2026 under the Air Force’s research and development accounts.
The engine upgrade is a cornerstone of the B-52J modernization program, which will transform all 76 B-52H bombers with new propulsion, sensors, and digital systems. Replacing the aging TF33 engines with modern F130 powerplants is expected to significantly enhance aircraft reliability while lowering long-term maintenance and operating costs.
Beyond propulsion improvements, the B-52J upgrade includes installation of the AN/APQ-188 active electronically scanned array radar, replacing the legacy AN/APQ-166 system. Derived from advanced fighter radars used on the F/A-18 and F-15EX, the new radar improves multi-mode sensing, target detection, and maintainability. Combined with structural enhancements and new avionics, the modernization will enable the B-52 fleet to remain a critical component of US strategic airpower through mid-century.
