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WikiPedia: Bell_X-1 http://chuckyeager.com/home.htm http://www.flickr.com/photos/zippy/9754284/ http://books.google.com/books?id=QCgDAAAAMBAJ&pg=P... http://sites.google.com/site/rgoddardsite/ http://www.nasm.edu/galleries/gal100/bellX1.html http://history.nasa.gov/monograph31.pdf http://history.nasa.gov/x1/ http://history.nasa.gov/x1/goodlin.html http://www.ipmsstockholm.org/magazine/2001/11/stuf... http://www.ipmsstockholm.org/magazine/2001/11/stuf...