File:Propulsive efficiency.png

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Propulsive_efficiency.png(454 × 285 pixels, file size: 16 KB, MIME type: image/png)

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Summary

Description
English: Propulsive efficiency of jet and rocket engine at different speeds relative to the exhaust velocity
Date
Source Own work
Author Wolfkeeper
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Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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Captions

Dependence of propulsion efficiency (η) upon the vehicle speed/exhaust velocity ratio (v/vₑ) for air-breathing jet & rocket engines. Efficiency increases as vₑ approaches v, maxing at vₑ= v (v/vₑ=1) as this gives the smallest residual kinetic energy.

Items portrayed in this file

depicts

24 June 2008

File history

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Date/TimeThumbnailDimensionsUserComment
current00:42, 24 July 2012Thumbnail for version as of 00:42, 24 July 2012454 × 285 (16 KB)wikimediacommons>MbeychokChanged "c" to "v<sub>e</sub>". Also added some background color and increased font size for better legibility.

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