The Gladiator was to be the last British biplane fighter to be manufactured, and the first to feature an enclosed cockpit. It possessed a top speed of about 257 mph (414 km/h; 223 kn) yet, even as the Gladiator was introduced, it was already being eclipsed by new-generation monoplane fighters, such as the RAF Hawker Hurricane and Supermarine Spitfire, and the Luftwaffe Messerschmitt Bf 109. A total of 747 aircraft were built (483 RAF, 98 RN); 216 were exported to 13 countries, some of these were from the total allotted to the RAF.[13][14] Gladiators were sold to Belgium, China, Egypt, Finland, Free France, Greece, Iraq, Ireland, Latvia, Lithuania, Norway, Portugal, South Africa and Sweden.