{"id":64508,"date":"2023-04-19T13:54:47","date_gmt":"2023-04-19T13:54:47","guid":{"rendered":"https:\/\/one.sightlinemg.com\/defensenews\/uncategorized\/2023\/04\/19\/us-air-force-eyes-september-for-next-phase-of-re-engining-b-52-bombers\/"},"modified":"2026-08-08T00:53:16","modified_gmt":"2026-08-08T00:53:16","slug":"us-air-force-eyes-september-for-next-phase-of-re-engining-b-52-bombers","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/defensenews\/air\/2023\/04\/19\/us-air-force-eyes-september-for-next-phase-of-re-engining-b-52-bombers\/","title":{"rendered":"US Air Force eyes September for next phase of re-engining B-52 bombers"},"content":{"rendered":"\n

WASHINGTON \u2014 The U.S. Air Force expects to seek a Milestone B decision on the program to put new engines on B-52H Stratofortress bombers<\/a> in September.<\/p>\n\n\n\n

The completion of the Milestone B review will allow the Commercial Engine Replacement Program<\/a> to begin engineering and manufacturing development as well as transition away from the middle tier of acquisition rapid prototyping effort under which it now operates, service acquisition chief Andrew Hunter told lawmakers Tuesday.<\/p>\n\n\n\n

\u201cI have a fairly high degree of confidence we\u2019ll be ready in the fall\u201d for the program to enter the engineering and manufacturing development phase, Hunter said at a hearing before the House Armed Services Committee\u2019s sea power panel.<\/p>\n\n\n\n

\"\"
Rolls-Royce is now testing the F130 engines that will be installed on B-52 Stratofortress bombers at NASA’s Stennis Space Center in Mississippi. (Rolls-Royce)<\/figcaption><\/figure>\n\n\n\n

Rolls-Royce and Boeing are working on the effort to replace the B-52H\u2019s current Pratt & Whitney-made, decades-old TF33 engines with new F130 engines. This is meant to keep the Cold War-era bomber \u2014 the newest of which entered service in 1962 \u2014 flying into the 2050s as the B-52J.<\/p>\n\n\n\n

Hunter said the B-52\u2032s new commercial-derivative engines will be able to use a broader supply chain than the current TF33 engines, which frequently break and have problems with parts availability.<\/p>\n\n\n\n

The Commercial Engine Replacement Program, or CERP, will also update the B-52\u2032s flight systems, cockpit throttles and displays, Hunter said.<\/p>\n\n\n\n

Another planned upgrade to modernize the B-52\u2032s radar will \u201cdramatically improve\u201d the bomber\u2019s situational awareness and ability to accurately strike targets, he added. Communications upgrades are also meant to increase the bombers\u2019 ability to exchange data and collaborate with other Air Force aircraft or units to strike targets.<\/p>\n\n\n\n

\u201cIt\u2019s all three programs working together,\u201d Hunter said. \u201cWhen you look at it, this is an almost complete overhaul of the mission systems of the B-52, and that is what will enable it to operate well into the future.\u201d<\/p>\n\n\n\n

Part of CERP\u2019s current rapid prototyping effort involved creating a digital twin of the new engine to test it and catch problems before engines are physically built. Hunter said this digital prototyping work has \u201cdone quite a bit of risk reduction on the program.\u201d<\/p>\n\n\n\n

Rolls-Royce is also testing the new F130 engines at an outdoor test facility at NASA\u2019s Stennis Space Center in Mississippi, the company said in March.<\/p>\n\n\n\n

Hunter told lawmakers that as part of that testing work, Rolls-Royce put a pair of F130 engines in a pod that simulates the pylons from which they will hang on the B-52, and conducted test runs of the engines. Those tests yielded information on how well the engines perform and what kind of vibrations they create when running.<\/p>\n\n\n\n

Once CERP completes Milestone B, Hunter said, it will become a formal acquisition program of record.<\/p>\n\n\n\n

Lt. Gen. Richard Moore, the Air Force\u2019s deputy chief of staff for plans and programs, said in a potential war against China, the service wouldn\u2019t expect the B-52 to fly in dangerous, contested airspace the way the stealthy B-21 Raider would. Instead, Moore said, the B-52 would use its considerable payload capability to fire standoff munitions out of range of Chinese defenses.<\/p>\n\n\n\n

Moore said the Air Force has not decided whether to pursue a future \u201cclean-sheet\u201d bomber to replace the B-52 in the decades to come. The service is first focusing on deciding how many B-21s it will end up buying, and is working on the Next Generation Air Dominance fighter system, as well as next-generation refueling and mobility aircraft, Moore explained.<\/p>\n\n\n\n

The Air Force decided to dramatically accelerate acquisition of its next-generation aerial refueling system by about 15 years due to the increasing threat from China, Moore added.<\/p>\n\n\n\n

\u201cCertainly the same thing could happen to the bomber portfolio,\u201d Moore said. \u201cIf we find out there\u2019s an emerging threat that the B-21 is not capable of handling, we would look to replace or add to the bomber fleet with something that could handle that threat.\u201d<\/p>\n\n\n\n

The Air Force isn\u2019t there yet, Moore noted, and the service believes the B-21 will be able to handle the threats on the horizon. If the Air Force decides it needs to bolster its capabilities to handle an emerging threat, Moore explained, it would probably update its weapons rather than its airframes.<\/p>\n\n\n\n

\u201cWhat we see from the Chinese is rapid spiraling of weapons capability, and I think that might be a more likely place where we would attempt to counter the threat, rather than a clean-sheet design,\u201d Moore said. \u201cBut I certainly wouldn\u2019t rule that out, and it may be that we don\u2019t have a choice.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

“This is an almost complete overhaul of the mission systems of the B-52 [that] will enable it to operate well into the future,” says Andrew 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