Soyuz TMA-01M Expedition 25 To ISS

Soyuz TMA-01M is the first spacecraft of the new modernized Soyuz TMA-M series, developed and built by RKK Energia as an upgrade of the baseline Soyuz-TMA, which has been in use since 2002. 36 obsolete pieces of equipment have been replaced with 19 new-generation devices and the vehicle's total mass has been reduced by 70 kilograms (154 lbs). In particular, the old Argon-16 computer control system, which has been used on Soyuz ships for more than 30 years, has been replaced with a new digital onboard computer, the TsVM-101. Power consumption has been reduced throughout the ship. There are also changes to the spacecraft's structure, such as replacing the magnesium alloy used in the instrument module frame by aluminum alloy, to make the ship easier to manufacture.
The modernized Soyuz ship will also enable engineers to test new equipment which may also be used in Russia's next generation manned space ship that is currently under development.
NASA astronaut Scott Kelly, part of Soyuz TMA-01M's crew, praised the ship's new displays, saying that they make flying easier and less operator intensive.
Two flight development tests are planned: Soyuz TMA-01M and Soyuz TMA-02M. The third ship, Soyuz TMA-03M will be used for qualification tests. In addition to verifying the nominal operation of the spaceship, the testing will include verification of off-nominal modes, such as manual altitude control, issuing of orbital maneuvering pulses using four berthing and attitude thrusters, and flying around the ISS in manual control mode.