"Sniper@SDU" wrote in message ...
Hi, I'm a student pilot in China and I am curious to know that the headwind
direction changed, how the ATC re-arrange the traffic for using runway has
been change?

When I was at Dulles, they'd just start sending aircraft in the other way, letting
the few already in the process of approaches either fly vector'd downwind back
to the other side or land with the tailwind. There are been times that I've been
able to sneak in ahead of the line by taking a downwind landing while they're
turning the field around.