Establish, maintain, and level off from straight descents and descending turns.

Bottom line

The desired airspeed, pitch attitude, and power combination should be preselected and kept constant. The target descent rate should be 500 fpm. To level off from a partial power descent using a 1,000 feet per minute descent rate, the pilot should use 10 percent (100 feet in this example) as the distance above the desired level-off altitude to begin raising the nose and adding power to stop the descent and maintain airspeed.