The Saab 35 Draken is a Scandinavian jet fighter designed by Saab in the late 1950s. Notable for its distinctive double-delta wing design, the Draken was originally planned as an all-weather interceptor, though further modifications have made it a formidable strike fighter. The most modern version, which all Drakens will be upgraded to, is the (fictional) F 35F2 model, which features an improved Rolls-Royce Avon jet engine (locally produced as the Svenska Flygmotor RM6C) which allows it to reach 2,450 km/h or Mach 2.3, integration with the AIM-4 Falcon air-to-air missile, and at the request of Danish commanders in the Scandinavian Air Force, ample ground strike capabilities. Compared to the original version, the F 35F2 has a reduced cannon armament of one 30mm ADEN Cannon. Saab is known for its willingness to export defense products, resulting in a great number of Saab 35 Drakens being found across the world, primarily arming pro-western forces who can afford such a capable strike fighter.