U.S. Marines and Sailors with Marine Rotational Force – Darwin 26 disembark an MV-22B Osprey tiltrotor aircraft assigned to Marine Medium Tiltrotor Squadron (VMM) 268 (Reinforced), MRF-D 26. The Marine Corps MV-22B fleet “has flown more than 686,500 hours across 114 operational deployments,” the service said in its announcement of the final delivery. NAVAIR also leads the V-22 Joint Program Office (JPO), overseeing the entire U.S. military Osprey family that includes Air Force CV-22s and Navy CMV-22s. (USN) USNThe Air Force has received all 56 of its CV-22s, with the last one being delivered in July 2025. (U.S. Air Force photo by Senior Airman Trevor Gordnier ) U.S. Air Force CV-22B Ospreys.