Formation flight Sunday. “A formation of three AH-56…

From: Planeshots

Formation flight Sunday. “A formation of three AH-56 Cheyenne conducting flight tests. Before the Sikorsky X2, which recently broke the helicopter speed record and employed some of the technologies introduced by the Cheyenne, the big Lockheed AH-56 flew far faster than any contemporary helicopter. Photo from the Robert F. Dorr Collection”