Tupolev Voron

Background

The Voron project began after the remains of a Lockheed D-21, which had crashed in the Soviet Union following a failed mission over the People's Republic of China in 1969, were recovered and analyzed by the Soviet aircraft industry. The Council of Ministers of the Soviet Union commissioned the Tupolev OKB to rebuild the D-21 using Soviet materials, engines and equipment. Work was carried out at the MMZ Opyt facility near Moscow, which had prior experience with the drones Jastreb-1, Jastreb-2, Reys and Strizh. The project was headed by Alexei Tupolev, son of Andrei Tupolev.

The Voron was planned as a reconnaissance platform intended to contribute to overall strategic reconnaissance alongside other airborne and ground-based tools. The autopilot was to guide the aircraft along a pre-programmed route using an inertial navigation system. The only payload was a high-resolution camera attached to the underside. The drone was designed for a single mission; after completion, a reusable section containing the reconnaissance equipment would separate and glide down on a parachute, similar to the Jastreb-1.

Launch was primarily from a Tupolev Tu-95 strategic bomber, which could carry one Voron held partially inside an opened bomb bay, unlike the B-52 which could carry two D-21s under its wings. A ground-based launch using a trailer with a large booster rocket was also planned but rejected due to shorter deployment range. Some sources state the Voron used an RD-012 engine with 1350 kgf thrust; others mention a 3Ts4 (RD-07K) engine from OKB-670, which also used the relatively well-preserved Marquardt RJ43-MA-11 engine from the D-21.