Soyuz | Soyuz 7K-T No.39 (Soyuz 18a / Soyuz 18-1)
Soviet Space Program · Soyuz · 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Soviet Space Program's 906th launch · 20th this year · humanity's 1,677th orbital launch attempt
Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.
Window: Apr 5, 11:04 – Apr 5, 11:04 UTC
Flight preview
Soyuz 7K-T No.39 (Soyuz 18a / Soyuz 18-1)
Soyuz 7K-T No.39, also known as Soyuz 18a or Soyuz 18-1, was intended to be the next crewed mission to the Salyut-4 space station. The mission launched on April 5, 1975, 11:04:54 UTC, but due to a failure of the Soyuz launch vehicle during ascent it was aborted. Safety system initiated separation of the spacecraft, and the crew of commander Vasili Lazarev and flight engineer Oleg Makarov experienced overloads of up to 21.3 g. The capsule landed safely at 11:26:21 UTC, followed by a successful rescue of the crew members.
Human Exploration · Low Earth Orbit (LEO)
Crew
Vasily LazarevCommander · RFSA
Oleg Grigoryevich MakarovFlight Engineer · RFSA
Booster
No booster details available.
Watch
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Pad — 1/5
Local pad time: Apr 5, 4:04 PM GMT+5
487 launches from this pad · 1,564 from Baikonur Cosmodrome, Republic of Kazakhstan
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