The
Messerschmitt-Bölkow-Blohm Bo 105 is a light, twin-engine, multi-purpose
helicopter developed by
Bölkow of
Ottobrunn, Germany. It holds the distinction of being the first light twin-engine helicopter in the world, and is the first rotorcraft that could perform
aerobatic maneuvers, such as inverted loops. The Bo 105 features a revolutionary
hingeless rotor system, at that time a pioneering innovation in helicopters when it was introduced into service in 1970. Production of the Bo 105 began at the then-recently merged
Messerschmitt-Bölkow-Blohm (MBB).