The Marine Corps has taken delivery of the last of 359 MV-22B Ospreys that it has procured over the past two decades, Corps officials announced on Tuesday. The tiltrotor MV-22B Osprey is the primary aircraft that takes Marines to and from Navy ships, remote bases and battlefields. Over the past 20 years, the MV-22B Osprey transformed Marine aviation, Lt. Gen. William Swan, deputy commandant for aviation, said at a ceremony on Tuesday marking the delivery of the final aircraft. Investigators found that one such failure caused an MV-22B Osprey crash in June 2022 that killed five Marines. “We cannot assume that because the MV-22B transformed Marine aviation once, its evolution is complete,” Swan said in the news release.