F-16XL
... that the F-16XL aircraft was built as a possible successor to the F-111 Aardvark, but after being rejected it served as part of NASA's High Speed Civil Transport project instead?
... that the <b id="mwBCE"><a href="./General_Dynamics_F-16XL" id="mwBCI" rel="mw:WikiLink" title="General Dynamics F-16XL"><span about="#mwt69" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"F-16XL"}},"i":0}}]}' id="mwBCM" typeof="mw:Transclusion">F-16XL</span></a></b> aircraft <i id="mwBCQ">(pictured)</i> was built as a possible successor to the <a href="./General_Dynamics_F-111_Aardvark" id="mwBCU" rel="mw:WikiLink" title="General Dynamics F-111 Aardvark"><span about="#mwt70" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"F-111"}},"i":0}}]}' id="mwBCY" typeof="mw:Transclusion">F-111</span> Aardvark</a>, but after being rejected it served as part of <a href="./NASA" id="mwBCc" rel="mw:WikiLink" title="NASA">NASA</a>'s <a href="./High_Speed_Civil_Transport" id="mwBCg" rel="mw:WikiLink" title="High Speed Civil Transport">High Speed Civil Transport</a> project instead?