US Air Force Advances B-52 Modernization with Key 2026 Milestones
The U.S. Air Force has made significant strides in modernizing its B-52 strategic bomber fleet in 2026, achieving two key milestones that will extend the aircraft's operational relevance through 2050 and beyond. On June 1, the B-52J Commercial Engine Replacement Program (CERP) received Milestone B approval, allowing the engine upgrade to progress into development. This program will replace the B-52’s original TF33 engines with Rolls-Royce F130 engines and modernize supporting subsystems, including hydraulic pumps, cockpit displays, and generators to increase electrical power capacity. The total acquisition cost for CERP is $20.2 billion, with $2.6 billion already spent since 2018.
On August 21, the B-52 Radar Modernization Program (RMP) received Milestone C approval, authorizing the production of radar upgrades. This program will replace the 1980s-era APQ-166 analog radar with the APQ-188, an Active Electronically Scanned Array Radar derived from systems used in the F-15 and F/A-18. The production plan involves delivering 74 integration kits over five lots, ensuring stability and affordability. Both programs have undergone extensive testing to retire technical risks and ensure hardware maturity.
Brig. Gen. Timothy Spaulding highlighted the strong partnership between the B-52 Program Office, Boeing, Rolls-Royce, and Raytheon, emphasizing that these upgrades will provide the necessary propulsion reliability, sensor capability, and electrical power to keep the B-52 viable, lethal, and supportable. The B-52’s structural integrity remains a key strength, with assessments confirming the airframe’s ability to support new engines and continued operations well into the 2050s.
In addition to engine and radar upgrades, the B-52 enterprise is advancing survivable nuclear command-and-control communications, conventional beyond-line-of-sight capabilities, and weapons integration efforts, including hypersonic weapons testing. These modernization efforts are organized around four key functions: aviate, navigate, communicate, and eliminate, ensuring the B-52 remains a cornerstone of the Nuclear Triad and the nation’s long-range strike capability.