Abstract This paper is discussed the results of study on aerodynamic layout cryogenic regional turboprop with a low level environmental impact. The use fuel (liquid hydrogen, liquefied natural gas) in aircraft will radically reduce harmful emissions into atmosphere, as well consumption. But introduction transport category requires solving problems its storage board. A modification twin-engine f...

This paper proposes a feasibility study concerning large turboprop aircraft to be used as lower environmental impact solution current regional jets operated on short/medium hauls. An overview of this market scenario highlights that segment is evenly shared between and jet aircraft. Although ensure operative flexibility, they are usually not optimized for short missions with negative effect bloc...

In this paper multi-objective genetic algorithms were employed for Pareto approach optimization of turboprop engines. The considered objective functions are used to maximize the specific thrust, propulsive efficiency, thermal efficiency, propeller efficiency and minimize the thrust specific fuel consumption. These objectives are usually conflicting with each other. The design variables consist ...