The Turbomeca Astazou XIV Powerplant: A description of the Astazou turboprop engine used in the Jetstream and its operation
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 1 September 1967
Abstract
THE Sociéte Turbomeca Astazou, shown in the cutaway drawing, fig. 2, is a fixed shaft engine, running at the constant speed of 43,000 r.p.m. It has a three‐stage compressor, two axial stages followed by a centrifugal stage, after which there is the annular combustion chamber and finally the three‐stage turbine. The reduction gear, a two‐stage step‐down spur gear with three layshafts (or ‘stationary planets’), delivers 1,783 r.p.m. at the propeller shaft. Fuel flows along the main shaft from the front and enters the combustion chamber via a slinger ring, thus giving adequate vapourisation without the need for unduly small injection nozzles.
Citation
Lee, G.H. (1967), "The Turbomeca Astazou XIV Powerplant: A description of the Astazou turboprop engine used in the Jetstream and its operation", Aircraft Engineering and Aerospace Technology, Vol. 39 No. 9, pp. 33-41. https://doi.org/10.1108/eb034294
Publisher
:MCB UP Ltd
Copyright © 1967, MCB UP Limited