21/09/1961 Maiden flight of the Boeing CH-47 Chinook
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CH-47 Chinook - Landing in the sea
In September 1961, the preproduction Boeing Vertol YCH-1B made its initial hovering flight. During 1962, the HC-1B was redesignated the CH-47A under the 1962 United States Tri-Service aircraft designation system; it was also named "Chinook" after the Chinook people of the Pacific Northwest.