Dogan wrote, "The nose will tend to rise [on its own], and without a direct indication of pitch attitude, it is easy to overcontrol, which could cause a high pitch attitude and a near-stall condition." With so much less information available to the pilot under partial panel situations, Dogan further pointed out it is necessary to speed up the instrument scan among the dials that are left, and focus that much more acutely on interpreting the indications. Still, with airspeed, altitude, vertical speed and rate-of-turn information -- and the reliable old whiskey compass -- losing gyro instruments need not be irrevocably fatal. World War II pilots were taught a simple sing-song that they were to repeat over and over if faced with partial panel in the clouds: "Needle, ball and airspeed. Needle, ball and airspeed." And in an environment where instruments were prone to failure from "lead poisoning," that little ditty saved a lot of lives.