A front view of HK-1, Hughes Flying Boat, the world's largest plane, which successfully completed its first flight, shown in the photo. The eight 3,000 horsepower engine lifted the craft from the waters of Los Angeles Harbor with Hughes at the controls. The huge wings, with a span of 320 feet carried the aircraft for one mile at a 100-mile per hour speed before Hughes put it back on the water.

Howard Hughes sitting in between party attendees Lily Pons (left) and Errol Flynn (right) at a dining table located in the Beverly Wilshire Hotel in Beverly Hills, California. Text printed on an attached strip of paper: "At cocktail party given by singing star Los Angeles, Cal. -- Lily Pons, singing star; Howard Hughes, noted flier, and Errol Flynn (left to right) at the cocktail party given by Miss Pons at the Beverly Wilshire Hotel. Credit Line (ACME) 11/8/38 NY LON PAR."

A side view of the HK-1, Hughes Flying Boat, the world's largest plane, which successfully completed its first flight. The eight 3,000 horsepower engine lifted the craft from the waters of Los Angeles Harbor with Hughes at the controls.