An aircraft leaves point P (60N 030W) on a true heading equal to 090 while the gyro compass, which is assumed to be operating perfectly and without an hourly rate corrector unit, indicates 000.The aircraft arrives at point Q (62N 010W) on a true heading equal to 095. On the journey from P to Q the gyro compass remains in free gyro mode.If the flight lasted 1 h 30 min, the gyro heading at Q will be: