They have already editorialised by converting the speed from knots Anyway, still doesn't set an unofficial record by variant or type: https://groundspeedrecor

They have already editorialised by converting the speed from knots Anyway, still doesn't set an unofficial record by variant or type: https://groundspeedrecords.com/wof-top-3/?aircraft-manufacturer=Boeing&wpvaircraftmodel=b787-9 https://groundspeedrecords.com/wof-top-3/?aircraft-manufactu... Absolute fastest I can find on that site is a 747-400 at 752 knots / 866 mph but I do have a memory of one of that type breaking 800 knots over the Pacific within the last few years.