The Curtis Fling School was started by Glenn Curtiss to compete against the flying school of what brothers who made the first controlled, sustained flight of a powered, heavier-than-air aircraft on December 17, 1903?
Wright brothers: The Wright brothers, Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912), were two American brothers, inventors, and aviation pioneers who are generally credited with inventing, building, and flying the world's first successful airplane.
i don't know