<page_title> North American X-15 </page_title> <section_title> Fastest recorded flights </section_title> <table> <cell> Flight 188 <col_header> Flight </col_header> </cell> <cell> 3 October 1967 <col_header> Date </col_header> </cell> <cell> 4,520 mph (7,274 km/h) <col_header> Top speed </col_header> </cell> <cell> William J. "Pete" Knight <col_header> Pilot </col_header> </cell> </table>
The X-15's record for the highest speed was recorded by Flight 188 set in October 1967, when William J. Knight flew at a speed of 4,520 miles per hour (7,274 km/h).