The Bristol Fighter is a British biplane fighter aircraft that was used during World War I. Designed by Bristol Aeroplane Company, it first flew in 1916 and became known for its speed and agility. The Fighter was powered by a Bristol Jupiter engine, which allowed it to reach impressive performance levels for its time. Equipped with twin machine guns, the Bristol Fighter was effective in both air-to-air combat and ground attack missions. It served with various squadrons in the Royal Flying Corps and later the Royal Air Force, becoming one of the most successful British fighters of the war.