N. Matayoshi, Y. Okuno

This paper reports on pilot-in-the-loop flight simulations of helicopter wake vortex encounters conducted by the Japan Aerospace Exploration Agency. To clarify the characteristics of helicopter wake vortex encounters, helicopter responses were compared with those of fixed-wing aircraft in the same conditions. The simulation results indicate that helicopters are less susceptible to wake vortex disturbances than fixed-wing aircraft in the same weight category, with helicopters experiencing half or less the attitude disturbance and height loss than fixed-wing aircraft. The helicopter pilots consequently felt that there was no risk to flight safety even for encounters at distances somewhat less than the current ICAO wake vortex separation minima. This finding supports the feasibility of reducing wake vortex separation for helicopters compared to fixed-wing aircraft.

35th European Rotorcraft Forum 2009,

Conference Paper

englisch

21,0 x 29,7 cm, 12 Seiten

DGLR-Bericht, 2009, 2009-03, 35th European Rotorcraft Forum 2009 - Conference Proceedings; S.1-12; 2009; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

simulation, wakes, rotorcrafts

Bestellbar

2009