<article><hdr>Airborne shot of X-3 Stiletto</hdr><body>
<hi style=afpcap>The X-series of aircraft types has seen some exceptionally weird and wonderful shapes emerge from the design boards of the majority of the US aerospace industry. Amongst these was the single example of the Douglas X-3 Stiletto which was test flown from October 1952 onwards to evaluate supersonic flight research.</hi>