Conclusion
Aerial propellers

The design and development of a propeller is a complex activity, involving a large number of complementary disciplines. The choice of an architecture or functional concept is always the fruit of reflection aimed at satisfying a multitude of often contradictory imperatives. This is where the helicier's expertise comes into play, as he is able to propose the optimum solution (figure 45, p. 26).

Moreover, technological developments over the last few years have shown that we are increasingly moving towards integrated systems that consider the overall optimization of the entire propulsion system (engine + propeller); already, the conceptual difference between a very high bypass ratio turbofan engine on the one hand, and a turboprop engine on the other, is diminishing. It's a safe bet that the boundary between these...