[en] The REDT (Rotor à Entraînement Direct par Turbine – Direct Turbine Driven Rotor) is a new concept for
helicopter rotor drives developed by Sagita in Belgium. It works without any mechanical link between the
engine on one side and the rotor drive on the other side. It uses a fuselage-mounted compressor that
powers two contra-rotating rotor-mounted free turbines. These free turbines drive a pair of contrarotating
rotors that are fitted with rigid hingeless main rotor blades. This novel rotor drive eliminates the
need for either mechanical transmission or a tail rotor. The aim of the REDT concept is to lower the
maintenance costs and the accident rate, as well as to extend the flight envelope towards much higher
airspeeds compared to classical helicopters.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Antoine, Hubert; Sagita
Dimitriadis, Grigorios ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Hendrick, Patrick; Université Libre de Bruxelles - ULB
Kagambage, Emile ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Rayee, Terrence; Université Libre de Bruxelles - ULB
Language :
English
Title :
A Novel Concept for Helicopter Rotor Drives
Publication date :
July 2009
Event name :
3rd European Conference for Aero-Space Sciences
Event organizer :
EUCASS, ASTech, CCI
Event place :
Versailles, France
Event date :
du 6 juillet au 9 juillet 2009
Audience :
International
Main work title :
Proceedings of the 3rd European Conference for Aero-Space Sciences