Boeing is celebrating the 60th anniversary of the first flight of its H-47 Chinook twin-engine multi-role military helicopter on Sept. 21, 1961. The model entered service with the U.S. Army in 1962 and there are currently more than 950 in operation across 20 countries. According to Boeing, the Chinook is its longest running production program … Continue reading Boeing Marks 60th Anniversary Of Chinook First Flight