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Soviet Space ProgramSoyuz U1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1)
Launched
September 26, 1983 · 19:37 UTC
Summary
Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) launched on a Soviet Space Program Soyuz U from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on September 26, 1983 at 19:37 UTC. The mission failed: Approximately 90 seconds before the intended launch, a bad valve caused nitrogen pressurization gas to enter the RP-1 turbopump of the Blok B strap-on. The pump began spinning up, but with no propellant in it, RPM speeds quickly exceeded its design limits which caused it to rupture and allow RP-1 to leak out and start a fire which quickly engulfed the base of the launch vehicle. It was Soviet Space Program's 1,733rd launch, 74th this year and humanity's 2,746th orbital launch attempt. It was the 343rd Soyuz U flight and the 34th this year. The payload was bound for low Earth orbit (LEO). 2 crew members flew: Gennadi Strekalov and Vladimir Georgiyevich Titov. The spacecraft was Soyuz 7K-ST No. 16L (Soyuz T 11F732 #16).
- Result
- Approximately 90 seconds before the intended launch, a bad valve caused nitrogen pressurization gas to enter the RP-1 turbopump of the Blok B strap-on. The pump began spinning up, but with no propellant in it, RPM speeds quickly exceeded its design limits which caused it to rupture and allow RP-1 to leak out and start a fire which quickly engulfed the base of the launch vehicle.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Human Exploration · Low Earth Orbit (LEO)
- Milestone
- 343rd Soyuz U flight · 34th this yearSoviet Space Program's 1,733rd launch74th this yearhumanity's 2,746th orbital launch attempt100th orbital launch attempt this year
Crew
Gennadi StrekalovFlight Engineer · RFSA · age 42 · 3rd flight
Vladimir Georgiyevich TitovCommander · RFSA · age 36 · 2nd flight
Spacecraft
Soyuz 7K-ST No. 16L (Soyuz T 11F732 #16)
Soyuz Soyuz 7K-ST No. 16L was a Soyuz spacecraft which failed to launch on 26 September 1983. The Launch Escape System activated at approx T-90, six seconds before the launch vehicle exploded. It was intended to transport two cosmonauts to Salyut 7. The crew was Vladimir Titov and Gennady Strekalov.
- Destination: Salyut 7
- Mission length: under an hour
The spacecraft and its crew were saved from a launch vehicle failure before ignition by the launch escape system.
Flight preview
About this launch
Soyuz T-10a, also known as T-10-1, was supposed to be the third long-duration expedition to the Salyut 7 space station. The mission would have launched Commander Vladimir Titov and Flight Engineer Gennady Strekalov on September 26, 1983, 19:37:49 UTC, however the launch vehicle was destroyed on the launch pad by fire. The launch escape system in the Soyuz spacecraft fired two seconds before the launch vehicle exploded, saving the crew. It is so far the only case in which a launch escape system has been fired with a crew aboard.
Pad
1/5, Baikonur Cosmodrome, Republic of Kazakhstan
206th launch from 1/5, 9th this year · 687th from Baikonur Cosmodrome, Republic of Kazakhstan
Local pad time at liftoff: Sep 27, 1:37 AM GMT+6, at night
487 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
40 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) launch?
Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) launched on September 26, 1983 at 19:37 UTC.
Why did Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) fail?
Approximately 90 seconds before the intended launch, a bad valve caused nitrogen pressurization gas to enter the RP-1 turbopump of the Blok B strap-on. The pump began spinning up, but with no propellant in it, RPM speeds quickly exceeded its design limits which caused it to rupture and allow RP-1 to leak out and start a fire which quickly engulfed the base of the launch vehicle.
Where can I watch Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1)?
No webcast is on record for this launch.
What rocket launched Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1)?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) launch from?
1/5, Baikonur Cosmodrome, Republic of Kazakhstan. Liftoff was Sep 27, 1:37 AM GMT+6 local time at the pad.
What orbit was Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) going to?
Low Earth Orbit (LEO), a human exploration mission.
Which program is Soyuz 7K-ST No.16L (Soyuz T-10a / T-10-1) part of?
Salyut and Soyuz. About Salyut