Sometimes you are lucky enough to be passing by the airport to see some military assets using KTRK for high altitude training. While driving down 267 I saw a plane on crosswind thinking to myself that can't be what I think it is.
Turned off and watched a dual cockpit U2 make a low pass at our airport.
After 3 passes, they climbed out heading back to Beale AFB. U2's can't land at just any airport, but seems like they are training some new pilots, getting some practice in.
I hear this happens a few times a year, and it also happened a couple weeks later.