MOSCOW REGION, RUSSIA - JULY 17, 2017: A worker prepares a helicopter for the MAKS-2017 International Aviation and Space Salon in Zhukovsky, Moscow Region. Marina Lystseva/TASS (Photo by Marina Lystseva\TASS via Getty Images)
MOSCOW REGION, RUSSIA - JULY 17, 2017: A worker prepares a helicopter for the MAKS-2017 International Aviation and Space Salon in Zhukovsky, Moscow Region. Marina Lystseva/TASS (Photo by Marina Lystseva\TASS via Getty Images)