ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins62% CONFIDENCEOverall confidence: 62%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
A span the event runs from, per aerospacetestinginternational.com[1]: "Power-on is planned for mid-2027, aircraft ready by the end-2027 with flight test starting from early 2028", so the pin takes the first day of that period.Flight tests of the UK’s crewed sixth-generation demonstrator are due to start from early 2028, after power-on in mid-2027. More than 11,500 parts – about 90% of the aircraft’s weight – have been designed and released, with final assembly under way in Lancashire.
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