[cm2187]

Maybe I am thick but I am not sure I got your point. You mean he would wait 2min off the runway? Why, vortex created by larger planes?

[dghlsakjg]

Yeah. Turbulence from a large plane can affect small planes in really dangerous ways, and it can exist for up to 2 minutes.

So if a large plane has just used a runway, small planes will wait before taking off, whether that’s on the runway or off the side on a taxiway is up to the pilot and the tower controller.