The 100th Lockheed Martin F-35 Lightning II, the first aircraft destined for Luke Air Force Base in Glendale, Ariz., has entered the last stage of final assembly.

This conventional takeoff and landing (CTOL) aircraft, known as AF-41, is scheduled to arrive at the base next year.

During final assembly, the aircraft structure is completed, and electrical and hydraulic systems are added. Additionally, these systems are tested in preparation for fuel systems checks and engine runs.

The final steps prior to acceptance by the Air Force include a series of checkout flights leading to the aircraft entering the service's F-35 fleet. AF-41 is one of 126 F-35s in various stages of production worldwide.

In June, the Air Force announced its decision to increase the number of squadrons at Luke AFB to six with 144 aircraft, which will make it the largest F-35 base worldwide.

In addition to training U.S. pilots, Luke will also serve as an F-35A International Training site. Currently, Luke's economic impact on the state of Arizona is $2.17 Billion. With 14 F-35 suppliers in the state of Arizona, the program has an additional economic impact of $98Million.