File:Ajaks2.JPG

A principal scheme for the Ayaks project airplane

From http://www.sergib.agava.ru/russia/leninets/ajax/ajax.htm

Fair use rationale for Ayaks
I believe using the scheme on the Wikipedia servers to illustrate the Ayaks article constitutes fair use as defined by the copyright law of the United States because: Alex Bakharev (talk) 04:26, 26 December 2007 (UTC)
 * This is a promotional material released by the developer to illustrate the concept.
 * The material is used in the article to discuss the conception
 * The quality of the scheme is law, it does not allow to build the aircraft
 * Since the aircraft is not built yet and the plans are copyrighted obtaining of free substitutes is impossible