A contract for a full mid-life upgrade, the Tu-22M3M was signed in September 2014. The aircraft is to receive a further modified NV-45M radar, together with new navigation equipment and a modified flight control system. A new self-defense electronic radar suite is fitted, replacing the tail gun of the existing Tu-22M3. Much of the new avionics are shared with the upgraded Tu-160M2. Armament is planned to be enhanced by adding the new Kh-32 missile, a heavily modified version of the current Kh-22, the subsonic Kh-SD, the hypersonic Kh-MT, or the Kh-47M2 Kinzhal missiles. Deliveries of the Tu-22M3M are expected to begin in 2021.