NASA awards a contract for the design, building and testing of a supersonic aircraft to Lockheed Martin Aeronautics Company of Palmdale, California.
NASA
<a rel="nofollow" class="external free" href="https://www.nasa.gov/press-release/nasa-awards-contract-to-build-quieter-supersonic-aircraft">https://www.nasa.gov/press-release/nasa-awards-contract-to-build-quieter-supersonic-aircraft</a> (<a rel="nofollow" class="external text" href="https://www.nasa.gov/sites/default/files/thumbnails/image/lbfd-vehicle2.jpg">direct link</a>)