Description given with photo: "Howard Hughes Is Asked About His XF-11 By Senator! Culver City, Calif. - Millionaire plane builder Howard Hughes, left, is asked about his controversial XF-11 photo reconnaissance plane, background, by Senator Harry Cain, right, Republican of Washington. Cain is member of the Senate War Investigating Committee, and inspected Hughes craft after the plane builder had test flown the ship. An earlier model of same design nearly cost Hughes his life when it crashed in Beverly Hill last winter. Note wind-blown hair on both Pilot Hughes and observer Cain. Photo by Felix Pagel. 8/16/47."

Howard Hughes in the cockpit of the XF-11. Trucks and emergency vehicles are seen nearby.

L-R: Rea Hopper, Director of the Aeronautical Division, Hughes Aircraft Company; Howard Hughes; Clyde Jones, Director of Engineering, Hughes Tool Company Aeronautical Division; Warren Reed, Assistant; Col. Carl E. Jackson, Air Research and Development Headquarters, Baltimore; Gale J. Moore, pilot; and unidentified pilot in front of the experimental helicopter XH-17 Flying Crane on October 23, 1952. This was one of Hughes' last public appearances.

Howard Hughes warming up the first XF-11 prototype.

Crowd at a parade in New York City celebrating the completion of Howard Hughes' Around-the-World Flight!

Transcribed from back of photo: "Howard Hughes (in cockpit) warms up the XF-11 for its initial test flight. It is one of the world's fastest long-range photographic planes, July 7, 1946."

The exterior of Hughes Research Laboratories where rock bits were test-drilled in Culver City, California in the 1940s. Transcribed from note taped to back of photo: "Rock bits are test-drilled in the laboratory under conditions that duplicate, as far as is possible in the laboratory, those encountered in actual drilling. As a result, rotational speeds, loads, and fluid volume are closely controlled. The rig operator occupies a splash-proof booth above the 'cellar floor.' The instruments on his control panel provide for application and measurement of variable axial loading on the drilling bit up to 100,000 lbs., variable rotational speeds up to 400 rpm, measurement of bit penetration over a total vertical travel of 5 feet at rates up to 180 ft. per hour, and torque. On the panel, also, are several controls for the operation of mud pump and other accessory equipment."