File:Battle of Britain Memorial Flight Crest.jpg

Summary
Source: http://www.rafmarham.co.uk Copyright holder: Royal Air Force Permission: British Crown Copyright.  Details: "Material featured on this site is subject to Crown copyright protection unless otherwise indicated. The Crown copyright protected material may be reproduced free of charge in any format or media without requiring specific permission. This is subject to the material being reproduced accurately and not being used in a derogatory manner or in a misleading context. Where the material is being published or issued to others, the source and copyright status must be acknowledged.

Licensing
NB:Due to prohibition on creating derivative images, the Crown Copyright license is considered non-free for the purposes of Wikipedia. As such, it is used here under Fair Use guidelines.

Fair use rationale for Battle of Britain Memorial Flight

 * 1) No free-licensed or public domain images have been located that would serve as a suitable replacement for this image.
 * 2) Given the purpose this image is being used for in the article, it is unlikely that any such image will be located in the future (copyright for departmental logos and the Royal Arms are protected by Letters Patent and will never expire under the terms of the Copyrights Designs and Patents Act 1988.)
 * 3) As a squadron logo, the image has little to no commercial value, and its reproduction here will not deleteriously affect profits for the copyright holder.
 * 4) The image is being used here for informational purposes only, and its use on the English-language Wikipedia is not predicted to affect the value of the image or that of its copyright in any way.