With the results of the wind-tunnel tests in hand, the brothers began work on their third full-scale glider. They tested the machine at the Kill Devil Hills camp in September and October of 1902. It performed exactly as the design calculations predicted. For the first time, the brothers shared the flying duties, completing 700–1,000 flights, covering distances up to 622.5 feet (189.75 metres), and remaining in the air for as long as 26 seconds. In addition to gaining significant experience in the air, the Wrights were able to complete their control system by adding a movable rudder linked to the wing-warping system.