CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 4 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 at 75% confidence or better
Lockheed Martin's[1] own release of 15 December 2006 says the F-35 "completed its first flight moments ago" in Fort Worth; This Day in Aviation, FlightGlobal[4] (15 December 2006) and Wikipedia[3] give the same day.On 15 December 2006 Lockheed Martin chief test pilot Jon Beesley flew the first prototype F-35A Lightning II, AA-1, for 35 minutes from Fort Worth, Texas.
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