His rate of descent was now 350 feet per minute.

The rate of descent may have been greater than 5,000 feet per minute.

A normal rate of descent is about 1,500 feet per minute.

The descent rate has dropped to three thousand a minute.

During the last 14 seconds the rate of descent was extremely high.

He could see that the vertical descent rate had increased to 12,000 feet per minute.

He increased his rate of descent again, and the speed brakes kept him from coming in too hot.

"We are going into the ocean at maximum rate of descent."

Will you increase my rate of descent to a hundred feet a minute?

On the final approach leg, the pilot increased his rate of descent to build up energy.