Taxi down the runway

A F-35A Lightning II assigned to the 422nd Test and Evaluation Squadron taxis down the runway before a training mission April 4, 2013, at Nellis Air Force Base, Nev. The 422nd TES will design the tactics for the F-35A. The squadron will also determine how to integrate the F-35A with other aircraft in the Air Force inventory. (U.S. Air Force photo/Senior Airman Brett Clashman)