Pratt & Whitney heads up the list of Long Range Strike Bomber (LRSB) subcontractors released by the Air Force on Monday.Pratt & Whitney is developing the engine, Air Force Secretary Deborah James told reporters at the Pentagon. Other subcontractors, working on the airframe or mission systems, are: GKN Aerospace, Janicki Industries, Orbital ATK [OA], Rockwell Collins [COL], BAE Systems and Spirit Aerosystems. Air Force Assistant Secretary for Acquisition Lt. Gen. Arnold Bunch Monday declined to provide further specifics on what…