1971-053A
The second ferry ship was 7K-T No. 32 (Soyuz-11). Soyuz-11's crew was Georgiy Dobrovol'skiy, Vladislav Volkov, and Viktor Patsaev. This time docking was without problems and the crew spent 22 days on Salyut 1.
The ship undocked from the station and the PAO engine carried out the deorbit burn. After the BO and PAO modules separated from the SA, a valve accidentally opened and depressurized the cabin. This may have been due to the separation blast, or to accidental activation of one of the valves prior to launch. The valve was a fresh air system meant to be opened after landing. The crew attempted to crank the valve closed, but failed; all three died during the descent. The craft landed 202 km E of Dzezkazgan at 47 20 N, 70 24 E.
| Soyuz-11 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1971 Jun 6 | 0455:09 | Launch by Soyuz 11A511 | KB |
| 0457 | Blok-BVGD sep | ||
| 0459 | Blok-A sep | ||
| 0503 | Blok-I MECO | ||
| 0504 | Blok-I sep, LEO | ||
| 1050 | Rev 4 burn | 185 x 217 x 51.6 | |
| 1971 Jun 7 | Rev 16 burn | ||
| 0427 | Range 4 km, radio lock on | ||
| 0431 | SKD burn 10s, range 2.3 km | ||
| 0437 | Range 700m | ||
| 0452 | Range 10m | ||
| 1971 Jun 7 | 0455 | Docked to Salyut | |
| 0732 | Go for HO | ||
| 0735? | HO to Salyut | ||
| 1971 Jun 8 | 0802 | Orbit raise | |
| 1971 Jun 29 | 1815 | Hatch closed | |
| 1825:15 | Undocked from Salyut | ||
| reapproach to 30m for imagery | |||
| 1930? | Sep from Salyut | ||
| 2235:24 | Retrofire (2:25) | ||
| 2237:49? | DO CO | -144? x 230 x 51.56 | |
| 2247:28 | Modules sep at 150 km | ||
| 2247:29? | Accidental depress of SA at 168 km | ||
| 2249? | Crew killed | ||
| 2248:49? | Death of Volkov (dp+80) | ||
| 2249:09? | Death of Patsaev (dp+100) | ||
| 2249:21? | Pressure at 0 mm? | ||
| 2249:29? | Death of Dobrovol'sky (dp+120) | ||
| 2249:43 | Pressure at 50mm | ||
| 2250:59 | Pressure at 0mm? R+15:35 | ||
| 2254? | Entry | ||
| 2302 | Parachutes out | ||
| 2316:52 | Landed 200 km SW Kustanai | ||
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