APPARATUS AND METHOD FOR DETERMINING AIRCRAFT TIRE PRESSURE

Disclosed is an apparatus configured to determine the pressure of an aircraft tire at a reference temperature. The apparatus comprises a processing system configured to: obtain a measured tire pressure and a measured temperature associated with the measured tire pressure; and determine a tire pressure at the reference temperature by adjusting the measured tire pressure using a predetermined temperature characteristic, a square root of the measured temperature and a square root of the reference temperature. The predetermined temperature characteristic is a gradient of the relationship between square root of temperature and tire pressure.