21. This lateral guidance does not give pilots vertical guidance, which allows for a steady rate of descent . 22. "The radar data indicates a high rate of descent after the flight-data recorder stopped, " he said. 23. This arrangement allows for variations in rope diameter and condition, as well as controlled rate of descent . 24. The Concorde supersonic airliner could use reverse thrust in the air to increase the rate of descent . 25. Aldrin chanted the altitude and rate of descent : " Forty feet, down 2 1 / 2. 26. He was unable to check the rate of descent , resulting in a high-impact crash on the runway. 27. Its main use is as a friction device for controlling the rate of descent in belay systems. 28. The size of these regions vary with the blade pitch, rate of descent , and rotor rotational speed. 29. Thereafter the helicopter crashed due to loss of control resulting in high rate of descent in down draught. 30. The best airspeed is the one that combines the greatest glide range with the slowest rate of descent .
