Propulsive_efficiency.png


Summary

Description
English: Propulsive efficiency of jet and rocket engine at different speeds relative to the exhaust velocity
Date
Source Own work
Author Wolfkeeper
This graph image could be re-created using vector graphics as an SVG file . This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{ vector version available | new image name }} .


It is recommended to name the SVG file “Propulsive efficiency.svg”—then the template Vector version available (or Vva ) does not need the new image name parameter.

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain . This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law.

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