MAN flight path
We live on the flight path for Manchester airport, I don't know how low the aircraft are as they pass but they are gear down as they fly over and can cast a shadow in to my bedroom.
In certain conditions we can clearly hear the vortex generated and occasionally actually see them in the air. They are an incredible phenomenon.
When they touch they can pull debris and loose tiles up but I'd be very surprised if they could hurt anyone or cause significant damage.
Mind you they do seriously freak our cats out if they're outside when it happens!
Ju