该机现装普惠公司的推力为75千牛的TF33发动机,如果这项换发计划能得到美国国防部批准,则B52-H将由装8台TF33改成装4台RB211。用于换发的RB211将由美国的艾利逊公司组装。据艾利逊公司说,B-52H的现代化和后勤保障计划将使该机的使用寿命延长到下世纪。这一改进将降低它的维修费用和改善 This machine is equipped with Pratt & Whitney’s thrust of 75 kN TF33 engine, if the renewal plan can be approved by the U.S. Department of Defense, the B52-H will be installed by 8 TF33 into 4 RB211. The RB211 for replacement will be assembled by Allison, USA. According to Allison, the B-52H’s modernization and logistics support program will extend the aircraft’s useful life to the next century. This improvement will reduce its maintenance costs and improvements