The Mi-28N assault helicopter was taking an interest in the show as a feature of a rival composed by the Russian guard service, Russian media reported from the occasion.
"One pilot has passed on, the state of the other is acceptable," the service said in an announcement distributed by Russian news offices.
The Russian airforce continued to ground all Mi-28 flights after it was uncovered that the accident could have been brought about by gear disappointment.
The flying demonstration Aviadarts, where airforce plane and helicopter groups contend to do timed assignments, was suspended for the day.
TV footage indicated salvage specialists taking care of the seething helicopter lying on its side in the landing strip after it slammed and burst into flares.
The resistance service said the mischance was obviously brought on by a water powered framework disappointment, which was accounted for by the surviving pilot who shot out from the chopper.
"As per the second pilot, the fiasco happened because of aeronautics hardware disappointment," said leader of Russian airforce Viktor Bondarev. "I have ceased all flights on Mi-28" until an examination is finished.
The Soviet-planned Mi-28 has been utilized by the Russian airforce since the mid-2000s and is likewise traded to various nations including Iraq.
There have been no less than six occurrences in the course of recent weeks including Russian military planes and helicopters.