Description given with photo: "Before Surprise Flight, Long Beach, Calif.: No longer land-locked, Howard Hughes' 200-ton flying boat, world's largest plane, rides free in Los Angeles harbor after being floated for the first time. The builder and pilot later took the controversial plane into the air for a surprise one-mile flight during taxing trials. Credit (ACME) 11-3-47."
Transcribed from press release attached to back of photo: "NEW-DESIGN PHOTO PLANE COMPLETED CULVER CITY, Calif., July 7 -- test-flown today for the first time, the new XF-11 was revealed as one of the world's fastest long-range photographic planes. It was designed and built by Howard Hughes in conjunction with the Air Materiel command engineers. Army officials said that it can attain a speed of more than 400 miles per hour and a ceiling of more than 40,000 feet. The plane has a pressurized cabin making it unnecessary for the crew to use oxygen masks. Outstanding features include a full-span flap, unique eight-camera layout and exceptionally fast take-off." Transcribed from photo sleeve: "Howard Hughes sits in the cockpit of the XF-11, a reconnaissance plane that Hughes built and designed in conjunction with Air Materiel Command engineers. Hughes is preparing for his first test flight in Culver City, California July 7, 1947."
Howard Hughes on the flight deck of the HK-1, Flying Boat (the largest plane in the world) discussing with his flight engineer and radio operator, Dave Evans, the plans for the next day's taxi testing of the 400,000 pound craft. The flight deck occupies the upper level in the nose of the 219-foot hull. The Flying Boat was assembled on Terminal Island in the Los Angeles Harbor.
Howard Hughes giving a news Conference beside his airplane after landing in New York. This was his first flight after the nearly fatal XF-11 prototype crash in 1946.