The real meaning of this feat by the Wright biplane, however, was that the United States was the first nation officially to adopt an aeroplane for military purposes. To Americans it seems peculiarly fitting that it was the Wright machine that was adopted because it was the Wright aeroplane, strictly an American product, that was the first practical flier. Later on Wilbur returned to Fort Myer to finish off his contract by teaching two Signal Corps officers to handle the machine. During this time the aviator changed his biplane by transferring one of the forward elevating planes to the rear, where it was used as a fixed tail to give greater stability from front to rear. This was such a success that it was used in subsequent models, and the present-day Wright biplanes have no forward lifting plane at all--the horizontal plane at the rear serving as the elevator and also as the fore and aft balancer. In the fall of 1909, after the Fort Myer tests, the brothers again separated, Orville going to Europe, where he achieved more distinction, and Wilbur remaining at home to astonish his countrymen with his exhibitions at the Hudson-Fulton Celebration. He made the first trip around the Statue of Liberty on September 9, starting from and returning to Governor's Island in New York Bay. In the meantime the European aviators were making even greater strides, and 1909 saw many new aeroplanes take the air to break records of different kinds. Throughout the season there was hardly a day that some record was not broken, or that some previously unknown man did not achieve undying fame for his daring feats. Aeroplane schools were established and aviation passed from the stage of experimenting into the stage of record making and breaking. The European governments, particularly France and Germany, were carefully watching progress, and dozens of the pupils in the aviation schools were young officers detailed to learn the art of flying and report on its usefulness in warfare. Also the building of aeroplanes became a great industry and in France thousands of scientists, designers, mechanics, motor experts, and wood-working experts were engaged in turning out machines as fast as they could.