<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Tu-144" id="mw_w" rel="mw:WikiLink" title="Tu-144">Tu-144</a>, the world's first commercial <a href="https://en.wikipedia.org/wiki/Supersonic_aircraft" id="mwAQA" rel="mw:WikiLink" title="Supersonic aircraft">supersonic aircraft</a>, surpassing <a href="https://en.wikipedia.org/wiki/Mach_number" id="mwAQE" rel="mw:WikiLink" title="Mach number">Mach<span id="mwAQI" typeof="mw:Entity"> </span>2</a>, goes into service.