Preliminary work, based on the existing add-ons. Buran possible mission list (based on actual planing): November 1988 - Shuttle Buran 1.01 unmanned first flight, duration 2 orbits. Oct 1991 - Shuttle "Ptichka" 1.02 - unmanned first flight, duration 1-2 days, 37KB module payload. Apr 1992 -Shuttle "Ptichka" 1.02 - unmanned second flight, with a duration of 7-8 days, 37KB module payload. Orbital maneuvers and space station approach test: automatic docking with Mir's Kristall module crew transfer from Mir to the shuttle, with testing of some of its systems in the course of twenty-four hours, including the remote manipulator undocking and autonomous flight in orbit docking of the manned Soyuz-TM 101 with the shuttle crew transfer from the Soyuz to the shuttle and ...