Sikorsky CH-37 Mojave Free low-poly 3D model

The Sikorsky CH-37 Mojave (manufacturer designation: Sikorsky S-56) is a heavy lift helicopter of the US Army from the 1950s. It is one of the last large helicopters to use piston engines, which are heavier and less powerful than the turbines of more recent models, which explains its relatively short career (sources : Wikipedia)