First flight of the <a href="https://en.wikipedia.org/wiki/Boeing_B-47_Stratojet" id="mw9g" rel="mw:WikiLink" title="Boeing B-47 Stratojet">Boeing B-47 Stratojet</a> <a href="https://en.wikipedia.org/wiki/Strategic_bomber" id="mw9w" rel="mw:WikiLink" title="Strategic bomber">strategic bomber</a>.