The Bell Boeing V-22 Osprey has received considerable attention for its unique design, troubled development, and accidents. However, the Marines seem to think these troubles can be overcome and plan to have the military aircraft flying into the 2060s or even 2070s. (Ospreys are also operated by the Air Force, Navy, and the Japanese). Having been manufactured over decades for multiple customers, the V-22 Ospreys come in a number of variants.