Think-Dash: The Martin Marietta X-24B, via this excellent thread of images

Fair Use Notice

This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner.

The material is being made available in an effort to advance understanding of technology, for non-profit research and educational purposes only.

I believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law.

If you wish to use this copyrighted material for purposes of your own that go beyond 'fair use,' you must obtain permission from the copyright owner.

This is a completely non-commercial site for private personal use.