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RSC Energia: Soyuz МС-04 being prepared for leak tests

March 17, 2017

RSC Energia and SC Yuzhnyi specialists are preparing a transport manned vehicle of the new modification Soyuz MS-04 for leak tests in the vacuum chamber at Baikonur cosmodrome.

So far, the testing cycle of space hardware in a vacuum chamber using a helium-air medium in tested volumes is the most objective method of leak check in ground conditions, ensuring verification of the specified stringent pressurization integrity requirements.

The launch of Soyuz MS-04 with the crew of the next long-duration expedition to the International Space Station is scheduled for April 20, 2017 from Baikonur cosmodrome.

The unique vacuum complex 17T523M with a volume of 1515 cubic meters was developed based on vacuum chamber 17T523, which was intended for leak tests of large-size compartments and pneumatic/hydraulic systems of Buran orbital vehicles. Due to a new configuration the complex could be used to test large-size space hardware. A number of space products were successfully tested in vacuum chamber 17T523M including Soyuz, Progress spacecraft, core module of the ISS Russian Segment Zvezda, Piers and Poisk modules, Yamal communication satellites and others. As a result of the extensive reconstruction completed in 2016 the obsolete complex instruments and assemblies were replaced by modern ones. Modern vacuum pumps, seals, cooling system elements have been installed, the analogue control unit of the complex has been replaced by an electronic one. The camera body and the cradle structure to load products were subject to refurbishment procedures.

 

Pictures: SC Yuzhniy\TsENKI\ROSCOSMOS

 

RSC Energia press-center

 

 

 

Launches

September 13, 2017
The launch of LV Soyuz-FG with SC Soyuz MS-06 is planned.
July 28, 2017
LV Soyuz-FG with SC Soyuz MS-05 is launched.

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