Federal Space Agency has called the cause of the accident “Progress”, which took place on April 28. According to the press service of the department, emergency happened because of unaccounted “design feature” of using the transport truck (TGC) of the ship and the launch vehicle (LV).
«cause damage to the ship resulting from abnormal division 3 th stage of the launch and the THC, – design feature shared cargo spacecraft and the launch vehicle, “- said the agency.
In Roskosmos note that this feature has not been considered during the development work to create a spacecraft, but can be extended in the future operation of the carrier rocket “Soyuz-2.1a” with other spacecraft.
Recall rocket “Soyuz-2.1a” with the cargo ship “Progress M 27M “was launched from the Baikonur cosmodrome on April 28. Branch ship from the third stage carrier passed abnormally because of emergency space truck turned into an unplanned orbit in the strong twist. Docking with the ISS had to be canceled.
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