After 2 hours standing still just stemming the wind we were able to get ahead a bit, and make good about 20 knots over ground.

We were doing about 100 knots; they must have been flying at 500 or 600.

He estimated the wind to be about ten knots from his right.

In full flood the current looked to be about nine knots.

It's common for every school to have about 100 knots.

The 747 would be on its final approach course, traveling at about 130 knots per hour.

Finally they had the contact running east at about ten knots, far below the layer.

It was doing about ten knots, making a mile every six minutes.

"We're making about three knots and there doesn't seem to be much current."

Perhaps two miles, and the Calypso was making about five knots against a head wind.