The reason was not considered a design feature of using space truck and booster
The accident “Progress M-27M” April 28 this year occurred due to the structural features of unrecorded use of space truck and booster. It is reported by the Federal Space Agency.
See also: Source: fallen “Progress” and “Union” collected “by eye” To such conclusions state commission investigating the crash launch from the Baikonur Cosmodrome launch vehicle “Soyuz-2.1A” with the cargo ship “Progress M-27M».
«As a result of a comprehensive analysis of the causes of the emergency launch and implementation of field experiments, members of the committee came to the following conclusion: the cause of damage to the ship resulting from abnormal separation of the third stage of the launch vehicle and TGC – design feature shared cargo spacecraft and launch vehicle associated with the frequency dynamic characteristics ligament THC and third stage of the launch, “- said in a statement.
This feature is not considered fully during the development work on the creation of space rocket complex.
Roscosmos emphasized that restrictions on the further operation of the carrier rocket “Soyuz-2.1A” with other spacecraft were found.
Currently, the Federal Space Agency is developing an action plan for the further flight tests of the space complex. Schedule of manned launches to the end of the year will be determined by June 9, 2015, noted the agency.
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