Soyuz 38

From Wikipedia, the free encyclopedia
Soyuz 38
The Soviet Union 1980 CPA 5112 stamp (Soviet-Cuban Space Flight. Cosmonauts at Training Center).jpg
Soviet postage stamp commemorating the Soyuz 38 mission
COSPAR ID1980-075A Edit this at Wikidata
SATCAT no.11977
Mission duration7 days, 20 hours, 43 minutes, 24 seconds
Orbits completed124
Spacecraft properties
Spacecraft typeSoyuz 7K-T
ManufacturerNPO Energia
Launch mass6,800 kilograms (15,000 lb)
Crew size2
MembersYuri Romanenko
Arnaldo Tamayo Méndez
Start of mission
Launch dateSeptember 18, 1980, 19:11:03 (1980-09-18UTC19:11:03Z) UTC
Launch siteBaikonur 1/5
End of mission
Landing dateSeptember 26, 1980, 15:54:27 (1980-09-26UTC15:54:28Z) UTC
Landing site175 km SE of Dzhezkazgan
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude199.7 kilometres (124.1 mi)
Apogee altitude273.5 kilometres (169.9 mi)
Inclination51.63 degrees
Period88.194 minutes
Docking with Salyut 6
Soyuz38 patch.png
Soyuz programme
(Crewed missions)

Soyuz 38 was a human spaceflight mission conducted by the Soviet Union during September, 1980.[1] The Soyuz spacecraft brought two visiting crew members to the Salyut 6 space station, one of whom was an Intercosmos cosmonaut from Cuba.


Position Crew
Commander Soviet Union Yuri Romanenko
Second spaceflight
Research Cosmonaut Cuba Arnaldo Tamayo Méndez
Only spaceflight

Backup crew[edit]

Position Crew
Commander Soviet Union Yevgeni Khrunov
Research Cosmonaut Cuba José Armando López Falcón

Mission parameters[edit]

  • Mass: 6800 kg
  • Perigee: 199.7 km
  • Apogee: 273.5 km
  • Inclination: 51.63°
  • Period: 88.194 minutes

Mission highlights[edit]

12th expedition to Salyut 6. 7th international crew. Carried Intercosmos cosmonaut from Cuba. The Soyuz 38 docking occurred in darkness. As the spacecraft approached Salyut 6, the crew on the space station could see only its “headlights.” Ryumin filmed ignition and operation of the transport's main engine. Arnaldo Tamayo Méndez of Cuba and Soviet cosmonaut Yuri Romanenko docked without incident.

The purpose of the Soyuz 38 mission was to carry out nine experiments. They stimulated different areas of the brain to further understand the electrical activity in our brain. This was done using a customized helmet for each cosmonaut with silver electrodes and a tape recorder. The cosmonauts also wore special shoes to study the structure and motion of feet changes during weightlessness. They also collaborated with the Cuban Institute of Endocrinology and Metabolic Diseases to examine blood and urine samples throughout the entire launch, stay, and return to explore the psychological stress from preparation and working long hours under constant weightlessness. Another experiment they conducted was centered around studying changes in the levels of skeletal muscle structure. They used a Cuban made instrument to assess the adipose tissue and the stimulation of body fat. There was also a study on blood circulation, which sought to determine the impact weightlessness has on the human circulatory system. Tests had been carried out in previous flights and were repeated during this mission using a Chibis suit, a below-the-waist reduced-pressure device. Crew members completed exercise protocols wearing the Chibis to provide gravity-simulating stress to the body's cardiovascular/circulatory system and re-establishing the body's orthostatic tolerance after extended periods of microgravity. Negative pressure on the legs causes blood to accumulate in the lower extremities, which is the case in a gravity environment. Orthostatic intolerance has been a frequent complaint in humans returning from long-duration space flights. [2] The other experiments attempted to study how cell division, the immune system, concentrations of antibodies and other proteins and minerals were affected after prolonged exposure to a weightless environment. This included measurements into the amount and rate at which humans lost water, fat, and other minerals.The cosmonauts also studied the growth of a single crystal of sucrose in the same environment.

See also[edit]


  1. ^ The mission report is available here:
  2. ^ "Spaceflight mission report: Soyuz 38". Retrieved 2022-05-15.

External links[edit]