Abstract: The subject matter discloses a fixed wing aircraft comprising one or more foldable auto-rotation rotors operating on the fixed wing aircraft, each of the one or more foldable auto-rotation rotors comprising one or more foldable blades; the one or more foldable auto-rotation rotors are stopped while the fixed wing aircraft is flying; the one or more foldable auto-rotation rotors are started while the fixed wing aircraft is flying; the one or more foldable blades are folded while the fixed wing aircraft is flying; the one or more foldable blades are expanded while the fixed wing aircraft is flying; one or more masts, each of the one or more masts connects a foldable auto-rotation rotor of the one or more foldable auto-rotation rotors to the fixed wing aircraft; the one or more masts are foldable while the fixed wing aircraft is flying; the one or more masts are expanded while the fixed wing aircraft is flying; the one or more masts are positioned vertically and rearwards; a disk plane of the one or more auto-ro