Soyuz 36

Launch & orbit data: Designation  11811 / 80041A Launch date - time  26 May 1980 - 18:20:39 UT Launch site  Baikonur, LC31 Launch vehicle  Soyuz 11A511U OKB name - S/N°  Soyuz 7K-T s/n 52 Basic shape  Sphere-cylinder + 2 wings Dimension (m)  7.5 long, 2.3 to 2.72 dia Mass (kg)  6800? kg Flight Crew (EP-5)  Kubasov, Valeri N. (CDR) Farkas, Bertalan (CR) Call Sign  Orion Backup crew  Dzhanibekov V., Magyari Earth orbit on May 26.8:    - Perigee / Apogee  191 x 265 km    - Eccentricity  0.006    - Inclination  51.60°    - Period  89.00 min

Docking & landing data: Docking date - time  27 May 1980 - 19:56 UT Target spacecraft/port  Salyut 6/aft Undocking date - time  04 Jun 1980 - 16:39 UT Redocking date - time  04 Jun 1980 - 18:09 UT Target spacecraft/port  Salyut 6/fore Undocking date - time  31 Jul 1980 - 11:55 UT Landing date - time  31 Jul 1980 - 15:15:02 UT Landing location  46° N, 69° E Flight Duration (d:hr:min)  65d 20h 54m 23s (65.88 days) Nbr orbits   Landing crew  Gorbatko, Pham Tuân  (crew S-37)

Flight Crew

Mission details:

• On May 26, 1980, the SoyuzU launch vehicle with the Soyuz-36 transport manned spacecraft (TPK) under the Intercosmos program was launched from Baikonur Cosmodrome. The ship delivered the crew of the fifth visiting expedition to the Salyut-6 orbital station, consisting of commander Valery Kubasov and the first Hungarian astronaut-researcher Bertalan Farkas.
• On May 27, 1980, Soyuz-36 docked with the Salyut6 - Soyuz-35 orbital complex, where Leonid Popov and Valery Ryumin, astronauts of the fourth main expedition, continued to work at that time. During an almost 8-day flight, Valery Kubasov and Bertalan Farkash completed their own scientific program of 20 experiments developed by scientists from the countries participating in the Intercosmos program. The complex of biomedical research included an assessment of the effect of solar radiation on the human body under long-term space flight, an analysis of the psychophysical characteristics of astronauts while working at the orbital station, and a study of the effect of space factors on human cellular structures. In addition, the astronauts carried out experiments on the production of metal alloys and the growth of semiconductor single crystals, as well as multizone photography of the Earth′s surface using the Soviet-German camera MKF-6M for remote sensing of natural resources.
• After completing the flight program on June 3, 1980, Valery Kubasov and Bertalan Farkash returned to Earth aboard Soyuz-35, leaving their ship for the next visiting expedition, landing 140 km southeast Dzheskasgan.
  The Soviet-Hungarian flight became the fifth manned mission under the Intercosmos program, implemented as part of an agreement on international cooperation in the field of space exploration and use with Czechoslovakia, Poland, East Germany, Bulgaria, Hungary, and Vietnam. Cuba, Mongolia, Romania, France, India, Syria and Afghanistan.
• They returned to Earth in Soyuz 35, undocking June 3, 1980. Soyuz 36 landed with Soyuz 37 crew.

Kubasov and Farkas

Astrophilately covers:

New launch cancel Baikonur, signed by crew.

Launch cancel Baikonur, and special Hungarian board-cancel: 30 580, registered send.

Undocking date cancel Baikonur, signed by crew.