Cancelled Soviet spacecraft

proposed Russian spaceplane

2K (GRAU index serial number 11F35 2K, NPO Molniya airframe number 1.02), often referred to as Ptichka (, "little bird", although this was also a nickname for all orbiters in the programme), is the second Buran-class orbiter, produced as part of the Soviet/Russian Buran programme. Although 2K was the closest to being completed of any of the Buran-class orbiters (after the orbiter Buran), it was never finished. The program was officially cancelled in 1993, at which point the shuttle was 95-97% complete. The proposed official name for 2K was Burya (, "storm" or "tempest").

'''Mir-2' was a Soviet space station project which began in February 1976. Some of the modules built for Mir-2 have been incorporated into the International Space Station (ISS). The project underwent many changes, but was always based on the DOS-8 base block space station core module, built as a back-up to the DOS-7 base block used in the Mir station. The DOS-8 base block was eventually used as the Zvezda'' module of the ISS. Its design lineage extends back to the original Salyut stations.

Soviet spacecraft for crewed lunar flyby

Russian hypersonic aircraft

unfinished fifth spaceplane in the Soviet Buran programme

Soviet crewed lunar orbiting spacecraft

unfinished third spaceplane in the Soviet Buran programme

unfinished fourth spaceplane in the Soviet Buran programme

proposed Soviet air-launched reusable launch system project

Soviet orbital vehicle design

soviet spaceplane project