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Proceedings Paper

IR Group Activities At The Israel Aircraft Industries
Author(s): S. Jacobson; S. Weisrose; M. Lindner; M. Lindner; Z. Lissak; Y. Yoav; J. Wallace; R. Davidson; Y. Komet
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Paper Abstract

The experimental activities of the IR group at Israel Aircraft Industries (IAI) include the performance of IR signature measurements of aircraft in static ground as well as dynamic flight tests. Measuring capability exists in spectrometric and band modes. In support of measurements, signature modelling is performed. These include emissions from gaseous and solid-body sources, in the near, middle and far IR spectral wavebands. In support of related projects a test range has been developed which includes a jet engine simulator. This test facility has the capability to produce the IR radiation emitted by the hot metal surface and gaseous plume of a typical aircraft engine, at different power-level settings. These simulations are for low altitude aircraft, with flight speeds of up to 1 Mach. The IR radiation produced by the engine simulator is measured by a radiometric system, designed and constructed at IAI. The system includes five radiometers, operating simultaneously at 5 out of 13 different angles. A comprehensive base of computer codes at IAI is available and extends the understanding of the processes involved. These include the possibility of performing heat transfer calculations, jet engine wake temperature and chemical concentration distributions and atmospheric transmission considerations. In this presentation some of the results of radiometric measurements of the engine simulator will be compared to theoretical estimations of its IR signature.

Paper Details

Date Published: 10 November 1987
PDF: 11 pages
Proc. SPIE 0819, Infrared Technology XIII, (10 November 1987); doi: 10.1117/12.941811
Show Author Affiliations
S. Jacobson, IAI (Israel)
S. Weisrose, IAI (Israel)
M. Lindner, IAI (Israel)
M. Lindner, IAI (Israel)
Z. Lissak, IAI (Israel)
Y. Yoav, IAI (Israel)
J. Wallace, IAI (Israel)
R. Davidson, IAI (Israel)
Y. Komet, IAI (Israel)

Published in SPIE Proceedings Vol. 0819:
Infrared Technology XIII
Irving J. Spiro, Editor(s)

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