Sigma 7 Start of of flight tests July 29 2020 Part 2-2

Sigma 7 is a new aircraft designed by Sergei Ignatiev. It was made with the financial and technical support of a Scientific Engineering Company, the city of Zhukovsky.
Сигма 7 Начало испытаний Пробежки 29 июля 2020 Часть 2
Camera: Lens Hood and other useful things for...

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