Efforts to keep the U.S. Air Force bombers flying into the 2050s are running into cost and schedule concerns.

The service is expected to start production of upgrades "with little to no developmental flight testing," the GAO report found.

Add Yahoo as a preferred source to see more of our stories on Google. U.S. and Italian aircraft consisting of F-35 Lightning IIs, F-16 Fighting Falcons and a B-52 Stratofortress, fly in formation over ...

Each B-52H Stratofortress is powered by eight turbofan engines. The Rolls-Royce F130 engines that will be installed are anticipated to keep the aircraft (which now have an average age of 64 years) in ...

Some B-52 programs are seeing substantial delays, putting them years behind schedule, and costs are ballooning as well.

(RTTNews) - The U.S. Air Force has awarded Boeing Defense Systems, based in Oklahoma City, Oklahoma, a $2.04 billion task order for the B-52 Commercial Engine Replacement Program (CERP) Post-Critical ...

The Air Force’s plan to modernize its B-52 bombers with replacement engines before completing critical portions of developmental flight testing could lead to higher costs and project delays, according ...

The historic B-52 bomber is a step closer to a new engine. The B-52J Commercial Engine Replacement Program recently held a Critical Design Review, a “pivotal milestone” that advances the older plane ...

Ten of 13 modernization efforts for the Boeing B-52 Stratofortress are experiencing cost, schedule or performance challenges.

The iconic B-52 Stratofortress carries eight jet engines for a straightforward reason rooted in history. When the aircraft was conceived in the late nineteen forties, engine technology simply could ...