Korolev design for a 'long range' rocket prior to orders to copy the V-2. Extended-range winged version of the D-1. The 1200 kg rocket would have a range of 76 km. Wingspan 1.5 m; 370 kg propellants; minimum range 20 km; maximum velocity 628 m/s; maximum altitude 10.7 km.

Manufacturer: Korolev. to a: 76 km range trajectory. Total Mass: 1,200 kg (2,600 lb). Core Diameter: 0.48 m (1.58 ft). Total Length: 4.55 m (14.92 ft). Standard warhead mass: 500 kg (1,100 lb). Maximum range: 76 km (47 mi).