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FAS Mystery Aircraft - http://www.fas.org/irp/mystery/index.html
Information on the mystery aircraft of the U.S. military like the Aurora. |
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The Society of Experimental Test Pilots - http://www.setp.org
An international organization that seeks to promote air safety and contributes to aeronautical advancement. Provides information on programs, activities and membership. |
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Experimental and Research Aircraft - http://www.aerospaceweb.org/aircraft/research/
Gallery featuring history, specifications, schematics, pictures, and data on several historic planes. |
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UFOSeek: Military Aircraft - http://www.ufoseek.com/Military_Aircraft/index.html
Links to sites on mystery military aircraft like the Aurora. |
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The X-Planes Data Site - http://users.dbscorp.net/jmustain/xpmain.htm
X stands for eXperimental, and experimentation is the single purpose of the X-planes. |