SA315 Alouette II

The SA 315B Lama was developed by Sud Aviation/Aerospatiale for demanding high-altitude conditions, notably requirements from Nepal and India. It combined the light airframe heritage of the Alouette II with power and rotor elements associated with the Alouette III. That hybrid approach produced a helicopter known for exceptional hot-and-high performance, making it valuable in mountains and remote regions.

Technically, the SA 315B is a single-engine light helicopter with a compact cabin, skid landing gear, and a rotor/powerplant combination selected for altitude performance. It can carry passengers, stretchers, light cargo, or external loads, and its simple construction made it practical in austere environments. Its high-altitude capability became the defining feature that separated it from ordinary light utility helicopters.

Operationally, the SA 315B Lama became a specialist for mountain environments. Military users employed it for liaison, observation, casualty evacuation, and high-altitude transport, while civil operators used it for rescue, construction support, and remote-area utility missions. Its long service life in difficult terrain explains why the type remains respected even where newer helicopters have replaced it.