File:Hst-power-unit.jpg

Photograph of HST power unit consisting of Paxman Valenta engine, turbocharger and Brush traction alternator. The Marston cooler group is not shown.

This image is uploaded under "fair use" as it depicts the subject of the article and is not being used for profit or gain.

Fair use for Hst-power-unit.jpg[edit]

Though this image is subject to copyright, its use is covered by the US fair use laws, and the stricter requirements of Wikipedia's non-free content policies, because:

1. It is a historically significant photo.
2. It is of much lower resolution than the original. Copies made from it will be of very inferior quality.
3. The photo is only being used for informational purposes.
4. Its inclusion in the article adds significantly to the article because the photo and its significance are the object of discussion in the article.

This work is copyrighted (or assumed to be copyrighted) and unlicensed. It does not fall into one of the blanket acceptable non-free content categories listed at Wikipedia:Non-free content § Images or Wikipedia:Non-free content § Audio clips, and it is not covered by a more specific non-free content license listed at Category:Wikipedia non-free file copyright templates. However, it is believed that the use of this work: To illustrate the subject in question Where no free equivalent is available or could be created that would adequately give the same information On the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation, qualifies as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content and Wikipedia:Copyrights. Fair use //en.wikipedia.org/wiki/File:Hst-power-unit.jpg true