Failed Proton-K dual test of two TKS-VA reentry capsules (would-be Kosmos 937/938) from Baikonur Site 81/24; the rocket failed about 40 s after liftoff—the upper capsule was saved by its abort system, the lower was lost.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 11th
- of 29 Proton-K flights
- Date and time
- 4 August 1977, 22:00 UTC
- Rocket
- Proton-K
- Builder
- Khrunichev
- Launch site
- 81/24 (81P), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Test Flight
- Launches in 1977
- 76th of 130