FLYING A LITTLE QUIETER

The article discusses the development and application of a low-pressure ducted fan, named a ducted propulsor to distinguish it from the higher pressure-ratio fans powering today's large civil transport aircraft, for reducing noise from aircraft engines. The ducted propulsor basically consists of a small diameter, multi-bladed rotor attached directly onto the engine crankshaft, a set of stator blades directly behind the rotor and a short circular duct enclosing both rotor and stator. Although the full potential of the ducted propulsor is best realised when integrated into a new aircraft design, retrofitting of existing aircraft types still offers worthwhile gains. A new aircraft design with a ducted propulsor is already undergoing flight trails in Germany.

  • Corporate Authors:

    Institution of Mechanical Engineers

    1 Birdcage Walk
    London SW1H 9JJ,   England 
  • Authors:
    • Kemp, J D
  • Publication Date: 1978-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00190386
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM