United Atates Air Force officers observe preliminary ground tests of Boeing DASH -80 experimental jet transport aircraft

United States Air Force Officers walk around Boeing DASH-80 experimentsl prototype aircraft parked at the Boeing field, Renton, Washington, United States. Views from vehicle riding on the airfield runway. Boeing Stratocruiser aircraft (Air Force C-135) seen parked beside the runway. Boeing test pilot, Tex Johnston, waves from cockpit of DASH-80, taxis it to runwah and makes high-speed run on the ground. He returns and parks. Boeing technicians crowd around and about the aircraft and pilot Johnston walks amongst them.