2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
sci-techmaven
Launch logAdvertise
  1. Home
  2. Launches
  3. 1975
  4. 1975-F02
// orbital launch

Soyuz 7K-T No. 39

Soyuz 11A511 launch from Baikonur (Soviet Union) on April 5, 1975, carrying 1 payload. GCAT records the launch as a failure.

April 5, 1975 · 11:04 UTCLaunch 1975-F02Launch no. 1,671 in the log
RocketSoyuz 11A511
SpaceportBaikonurpad LC1
OutcomeFailurestage 2 separation failure
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 5, 1975, 11:04
Launch designation
1975-F02
Mission
Soyuz 7K-T No. 39
Flight name
Soyuz
Vehicle flight ID
Kh15000-023

Orbit and payload

Initial apogee
192 km
Payload mass to orbit
4.1 t
Payloads
1
GCAT launch code
OF · S2S

Payloads

PayloadDesignationOwnerMission typeMassFate
[Soyuz-18]1975-F02NPO Energiya———

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.