What is funny you could still buy this helicopter, Schweizer 300, brand new up to 2002 as it was designed in 1955! ~Same carbureted engine with zero automation and 40L/h fuel consumption. No engine governor means pilot manually controls engine rpm, you are the ECM having to correct for air temp and pressure altitude, worry about icing and manifold pressure.

All thanks to stupid US aviation policies - recertification is so expensive nobody does it and everyone flies dangerous shitboxes despite >50 years of innovations.