A U.S. Marine Corps MV-22 Osprey tiltrotor aircraft lands in the Imperial Valley Desert. A U.S. Marine Corps MV-22 Osprey tiltrotor aircraft lands in the Imperial Valley Desert in California on April 1, 2011. The MV-22 crew was test-landing the aircraft at different field locations to ensure they would be appropriate landing zones during Weapons and Tactics Instructor Course 2-11, hosted by Marine Aviation Weapons and Tactics Squadron 1. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 358848-M-ZBR13-871.jpg Photo Gallery