The state commission investigating the emergency start April 28, 2015 from the Baikonur Cosmodrome launch vehicle “Soyuz-2.1A” transport cargo ship “Progress M-27M”, reported its findings. According to “Roscosmos”, the accident occurred due to the structural features of unregistered “Progress».
«cause damage to the ship resulting from abnormal separation of the third stage of the launch and the THC ?? design feature shared cargo spacecraft and launch vehicle associated with the frequency characteristics of dynamic ligament THC and third stage of the launch. This design feature was not fully taken into account during the development work on the creation of space rocket complex “?? said the Federal Space Agency.
This clarifies that the restrictions on the further operation of “Soyuz-2.1a” with other spacecraft have been identified. Currently, “Roskosmos” is developing an action plan for the further flight tests of the space complex. June 9, 2015 will be determined to adjust the timetable of the program of manned launches in 2015 (including ?? and transport cargo ships).
STRF.ru
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