Howard Hughes (December 24, 1905 – April 5, 1976) was a pioneering aviator, engineer, industrialist and film producer. He was widely known as a playboy and one of the wealthiest people in the world. He is famous for setting multiple world air-speed records; building the Hughes H-1 Racer and H-4 Hercules airplanes; producing Hell's Angels and The Outlaw; and, for his debilitating and eccentric behavior later in life. Hughes was born in Houston, Texas on December 24, 1905, although his exact birthdate is debated by some biographers. His parents were Allene Gano Hughes and Howard R. Hughes Sr., who patented the tri-cone roller bit, which allowed rotary drilling for oil in previously inaccessible places. Howard R. Hughes Sr. founded Hughes Tool Company in 1909 to commercialize this invention.