Patent ID: 8121771

Claim:
A method of calculating a true aircraft braking friction coefficient of an aircraft landing surface using a landing aircraft comprising the steps of: (A) Obtaining one or more sets of data points recorded on a flight data management system mounted on the landing aircraft that is landing or has landed on the aircraft landing surface, wherein the one or more sets of data points that were obtained from the landing aircraft's flight data management system include one or more sets of data points recorded on the landing aircraft's flight data management system between substantially a point in time that the landing aircraft touched down on the aircraft landing surface until a predetermined point in time thereafter; (B) Transmitting the one or more sets of data points obtained from the landing aircraft's flight data management system to a computer; and (C) Using the computer to calculate the true aircraft braking friction coefficient of the landing surface using at least one of the one or more of the sets of the data points transmitted from the landing aircraft's flight data management system to the computer.