The Messerschmitt-Bölkow-Blohm Bo 105 was the first light twin-engine helicopter in the world, and the first rotorcraft capable of aerobatic maneuvers including inverted loops. Developed by Bölkow of Ottobrunn, West Germany, it entered service in 1970 featuring a pioneering hingeless rotor system. Production facilities were established in Germany, Canada, Spain, Indonesia, and the Philippines, with over 1,400 produced in Germany and 1,640 total including licence production. Following MBB's acquisition by DASA in 1989, the helicopter division merged with Aérospatiale to form Eurocopter in 1992, continuing Bo 105 production until 2001, where it was formally replaced by the Eurocopter EC135.