The Air Force will hold an industry day next month to discuss its acquisition strategy to replace the B-52's TF33 engine with a commercial variant -- appearing to rule out the option of an engine upgrade. The service said in a Nov. 16 notice it plans to discuss three potential contracting strategies during the Dec. 12-13 event, which will be held at Barksdale Air Force Base, LA. "The purpose of this event is to seek additional information from aircraft integration...