Then again, weren’t Юрчихин and Fischer scheduled to fly the Soyuz MS-05? No change then?
Seeing that NASA is looking to have more time in orbit, is it possible that Whitson comes back with soyuz MS04?
Quote from: vp. on 01/19/2017 07:14 pmSeeing that NASA is looking to have more time in orbit, is it possible that Whitson comes back with soyuz MS04?Yes it is....They are talking about it and word is that it will be announced soon.
MOSCOW, January 24. /TASS/. A Soyuz manned spacecraft scheduled to take off in March with a new expedition to the International Space Station (ISS) will be replaced by another space vehicle over a possible leak in the spacecraft’s descent capsule, a source in the rocket and space industry told TASS."Spaceship No. 734 may be replaced by spacecraft No. 735 over a leak in the descent module [of the 734th space vehicle]. This is not yet known for sure. The spacecraft will be returned for a check," the source said.Meanwhile, Russia’s State Space Corporation Roscosmos has said the spacecraft’s replacement is not related to any technical causes.Roscosmos announced last week that a Soyuz MS-04 spacecraft scheduled to fly to the International Space Station on March 27 would be replaced by a similar space vehicle but with a different factory number, which was intended to deliver Russian cosmonaut Fyodor Yurchikhin and NASA astronaut Jack Fischer to the world’s sole orbiter. Roscosmos said at the time the spacecraft replacement was not linked to any technical causes.Meanwhile, a source in the rocket and space industry said the replacement would take place because spacecraft No. 734 had been built with budget funds while space vehicle No. 735 had been made under a contract with NASA.
http://tass.com/science/926953QuoteMOSCOW, January 24. /TASS/. A Soyuz manned spacecraft scheduled to take off in March with a new expedition to the International Space Station (ISS) will be replaced by another space vehicle over a possible leak in the spacecraft’s descent capsule, a source in the rocket and space industry told TASS."Spaceship No. 734 may be replaced by spacecraft No. 735 over a leak in the descent module [of the 734th space vehicle]. This is not yet known for sure. The spacecraft will be returned for a check," the source said.Meanwhile, Russia’s State Space Corporation Roscosmos has said the spacecraft’s replacement is not related to any technical causes.Roscosmos announced last week that a Soyuz MS-04 spacecraft scheduled to fly to the International Space Station on March 27 would be replaced by a similar space vehicle but with a different factory number, which was intended to deliver Russian cosmonaut Fyodor Yurchikhin and NASA astronaut Jack Fischer to the world’s sole orbiter. Roscosmos said at the time the spacecraft replacement was not linked to any technical causes.Meanwhile, a source in the rocket and space industry said the replacement would take place because spacecraft No. 734 had been built with budget funds while space vehicle No. 735 had been made under a contract with NASA.
734 has a SOTR leak which was confirmed ages ago by sources in Baikonur.
Quote from: russianhalo117 on 01/24/2017 09:25 pm734 has a SOTR leak which was confirmed ages ago by sources in Baikonur.I had to look that one up. SOTR is Sistema Obespecheniya Teplovogo Rezhima (Cистема Обеспечения Теплового Режима) which translates to Ensure System Thermal Management.
Thermal Control System, this should use Triol for heat transfer, so it's a radiator fluid leak.
The reboost also readies the station for the arrival of two new crew members who will arrive April 20. Veteran cosmonaut Fyodor Yurchikhin and NASA astronaut Jack Fischer, a first-time space flyer, will take a short four-orbit ride aboard the Soyuz MS-04 spacecraft and dock to Poisk. The new Expedition 51 trio is scheduled to stay in space for 136 days.NASA astronaut Peggy Whitson will become Expedition 51 commander after Kimbrough and his crew undock. She is staying behind with fellow crewmates Thomas Pesquet from France and Oleg Novitskiy from Russia. They will stay in space until June 2 ending their mission after 195 days when they return home in their Soyuz MS-03 spacecraft.
http://www.roscosmos.ru/23130/Soyuz MS-04 will fly with spacecraft № 735 instead of № 734.
Внедрение прибора БИУС взамен прибора КИ00-18 на ТПК «Союз МС» (зав. № 735).