active, air, air force, airport, american, amtsh, and, are set, art, at the same time, aviation, battlefield 4, blue, board, boeing, boeing-737, book, can, ch- 47 chinook, ch-47 chinook, communication, company, conditions, counter, dark, database, destruction, detection, developed by, drone, enemy ., fire, force, grey, grumman, helicopter, helicopters, hh-60, hitting, intelligence, intended, is used, live, longitudinal, losses, men, mi- 28, mi- 8, mi-17, mi-28n, mi-35, mi-8, mi-8amt, military, mq-8b, multi-purpose, name, night hunter, northrop, of the blade, off, other, parlance, photo, picture, point, power, purposes, pylons, refueling, round, russia, scheme ., search, shock, sikorsky, soviet union, tanker, tanks, target, their, transport, uav, under, weapons