Sole surviving example of N-9 on display at the Naval Aviation Museum in Pensacola, Florida.
During the war, 2,500 Navy pilots were trained on the N-9. In addition to training a generation of Navy pilots, the N-9 was used to develop tactics for ship-borne aircraft operations in 1916 and 1917, using catapults mounted on armored cruisers. After the war, the N-9 was again employed to successfully demonstrate a compressed air turntable catapult. This type of catapult was later installed on battleships, replacing turret-mounted platforms for launching aircraft. In July 1917, several N-9s were acquired by the Sperry Gyroscope Company and were used as test vehicles for aerial torpedo experiments conducted for the Navy's Bureau of Ordnance. The N-9 was withdrawn from the U.S. Navy inventory in 1927 after ten years of exemplary service.
