From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide reads, "Total announced tests and radiation measured off the test range complex. Total above-ground tests = 126. Total sub0surface tests = 413. Total tests = 539. Number measured off the test range complex of above-ground tests = 89. Number measured off the test range complex of sub-surface tests = 40. Total number measured off the test range complex = 129."

Howard Hughes at his desk at Hughes Aircraft Company, 1947. A painting of the XF-11 is seen on the wall behind Hughes.

Blue-line print ; 74 x 36 cm on sheet 79 x 61 cm. Survey was competed on March 8, 1924. Signed by the owners of the piece of property for the addition Roy W. Martin, Forest R. Mildren, William E. Ferron, and A. W. Ham, signed by the surveyor J.T. McWilliams, and notarized on March 31, 1924. Approved by the Board of City Commissioners and signed by the major W. C. German and by Florence S. Doherty, city clerk, on April 1, 1924. Recorded in Book 1 of plats, page 47. Includes township and range grid.

An aerial view of the North Las Vegas City Hall and Civic Center Drive.

Howard Hughes in the cockpit of his XF-11 airplane before his first test flight.

Description given with photo: "Hughes Pilots Radar-Equipped Plane Culver City, Calif. -- First passenger plane equipped with radar is flown in demonstration May 1st by Howard Hughes (left) and co-pilot R.C. Loomis over Culver City. Pilots using this equipment will be warned of approaching obstacles by lights flashing on radar panel. Two lights (lefts) with 2,000-foot range, are used to guarantee clearance over mountains; two lights (right) with 500-foot range, are a safety device for approaches and landings. Either set of lights warns against approaching aircraft. Trans-World Airline plans to install radar on its passenger planes. Credit (ACME) 5-3-47."