Aérospatiale SA 321 Super Frelon
The Aérospatiale (formerly Sud Aviation) SA 321 Super Frelon ("Super Hornet") is a three-engined heavy transport helicopter produced by aerospace manufacturer Sud Aviation of France. It held the distinction of being the most powerful helicopter to be built in Europe at one point, as well as being the world's fastest helicopter.
Source: Wikipedia — Aérospatiale SA 321 Super Frelon (CC BY-SA 4.0)