What types of aeronautical machines are described above?
PowerJet PowerJet is a Franco-Russian 50-50 joint venture created in 2004 by aeronautical engine manufacturers Snecma (Safran) and NPO Saturn. The company is in charge of the SaM146 program – the sole powerplant for the Sukhoi Superjet 100 airliner – including design, production, marketing and after-sales support. It delivers a complete propulsion system, comprising engine, nacelle and equipment.
Folding propeller A folding propeller is a type of propeller whose blades automatically fold out when the engine is turning, and then fold back (or "feather") when the engine stops. Folding propellers are found on sailing yachts, on model airplanes, and increasingly on self-launching gliders and small motor gliders, such as the Aériane Swift PAS. Their purpose of folding propellers is to reduce drag when sailing or soaring, respectively.