24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-6.3.3

ULTRA AND VERY LIGHT DUCTED FAN PROPULSION SYSTEM COMPLEX DESIGN OPTIMIZATION

D. Hanus, R. Theiner, E. Ritschl
Department of Automotive and Aerospace Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo nam. 13, 121 35 Praha 2, Czech Republic

Keywords: light aircraft propulsion, ultra light ducted fan design, fan drive dynamics, piston engine installation and cooling, inlet channels external and internal aerodynamics

The propulsion system is being developed for the application to the full composite ultra-light two-seated airplane with maximum take off weight of 450 kg. The propulsion system consists of the piston engine of the power output of 150 HP at 10500 rpm, the composite fan driven by the lightweight aluminium alloy or composite shaft, the composite inlet channel and the composite jet nozzle with a by-pass cooling duct containing the engine radiators.

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