Usually the single most numerous military aircraft in the air anywhere. Live positions for every T-6 Texan II transmitting now.
If you open the globe on a weekday afternoon and wonder why one type dominates the count, this is it. The T-6 is where almost every American military pilot starts, and a training base flies the same handful of airframes over and over: a sortie lasts about an hour, so one aircraft can appear four or five times in a day.
That gives the type a distinctive rhythm on the feed. Numbers climb through the morning at Sheppard, Vance, Columbus, Whiting Field and Randolph, collapse at weekends, and drop away almost entirely on American public holidays. It is the closest thing military tracking has to an office-hours signal.
The aircraft itself is a heavily reworked Pilatus PC-9 built under licence in Wichita. Britain flies it as the Texan T1, Canada as the CT-156 Harvard II, and it has been exported to Greece, Israel, Mexico, Morocco, New Zealand and others.
Because it is the aircraft nearly every American military pilot learns on, and training sorties are short. A single T-6 can generate four or five separate flights in a day, and several training wings operate dozens of them at once.
Only by name. The original T-6 Texan was a 1930s North American design. This aircraft is a 1990s Beechcraft development of the Swiss Pilatus PC-9, and the name was revived deliberately for the lineage.
Mostly the cockpit. The T-6B has a glass display suite and a head-up display; the T-6A has conventional instruments. The T-6C is the export version. All three report as TEX2 on ADS-B.