Body mate of the last F-22 Raptor to be delivered to the US Air Force (Air Force serial number 09-4195) was completed at the Lockheed Martin facility in Marietta, Georgia, on 23 August 2011. The fuselage was lifted out of the mate fixture by crane and set on a wheeled dolly. Over the coming months, the aircraft's landing gear, wings, vertical and horizontal stabilizers, and Pratt & Whitney F119 engines will be installed and final assembly completed. Raptor 4195 is scheduled to roll off the assembly line by early January. Delivery to the Air Force is expected to come early in the second quarter of 2012.