From the Howard Cannon Photograph Collection (PH-00192). Stamped on verso: "Official U.S. Navy Photograph - Not for publication unless officially released" Commander D. S. Mackay explains the air break technique in aircraft landing during the 9999th Congressional Squadron Orientation Cruise.
Transcribed from attached press release: "Howard Hughes, on the flight deck of his flying boat, world's largest airplane, discusses with his flight engineer and radio operator, plans for tomorrow's taxi testing of the 400,000 pound craft. The flight deck occupies the upper level in the nose of the 219-foot hull, Nov 1, 1947."