APAS-89 system

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Graphic representation of the APAS-89 system

The APAS-89 system ( English Androgynous Peripheral Attach System , Russian АПАС, Андрогинно-периферийный агрегат стыковки for Androgynous Peripheral Attach System ) is an androgynous coupling mechanism for spaceships. It was developed from the APAS-75 system which was used for the Apollo Soyuz test project . The APAS-89 system was originally intended to allow the space shuttle Buran to dock with the Mir space station .

construction

APAS-89 on the crystal module

Compared to the previous version APAS-75, the outer diameter has been reduced from 2030 mm to 1550 mm, which limited the passage diameter to approx. 800 mm. In addition, the three guides were modified so that they taper from the inside out.

The following values ​​were set for docking for the Apollo-Soyuz mission:

  • Approach speed: 0.05-0.3 m / s
  • Longitudinal axis deviation: maximum 30 cm
  • Pitch, yaw and roll offset: maximum 7 °
  • Angular speed active spaceship: maximum 1 ° / s
  • Angular velocity passive spaceship: maximum 0.1 ° / s
  • Lateral relative speed: maximum 0.1 m / s

history

In 1990 the system was installed at the front of the Kristall room laboratory . The system was first used in 1993 by Soyuz TM-16 , the only Soyuz mission to date to use this coupling mechanism. With the collapse of the Soviet Union and the end of the Buran program, space shuttle missions to Mir were now planned. For this purpose, the newly developed APAS-89 system was expanded with the shuttle docking module . The system has been further developed as APAS-95 for the international space station and the shuttle operations required for it .

Web links

Individual evidence

  1. China's "Androgynous Peripheral Assembly System" (APAS) for docking in the space. (No longer available online.) Archived from the original on April 2, 2014 ; accessed on June 1, 2014 .