A computer network for calculating and distributing a true aircraft friction braking friction coefficient for an aircraft landing surface comprising:
- (A) A computer that communicates with a flight data management system of a landing aircraft that is landing or has landed on the aircraft landing surface, wherein the aircraft's flight data management system has recorded thereon one or more sets of data points relating to one or more of the landing aircraft's following aircraft performance properties over a period of time:
- aircraft ground speed, aircraft brake pressure, aircraft longitudinal acceleration, aircraft engine thrust setting, aircraft reverse thrust setting, aircraft engine revolutions per minute, aircraft air speed, aircraft vertical acceleration, aircraft spoiler setting, aircraft airbrake setting, aircraft aileron setting, aircraft flap configuration, aircraft pitch, and aircraft autobrake setting;
- (B) Wherein the computer communicates with the landing aircraft's flight data management system and obtains from the landing aircraft's flight data management system the one or more sets of the aircraft performance property data points recorded on the landing aircraft's flight data management system;
- (C) Wherein the computer communicates with one or more environmental data sources, wherein the one or more environmental data sources have recorded thereon one or more sets of data points relating to one or more environmental parameters, the data points relating to the one or more environmental parameters being chosen from the following group:
- air temperature, air pressure, relative humidity, wind speed, wind direction, pressure altitude, and aircraft landing surface elevation;
- (D) Wherein the computer communicates with the one or more environmental data sources and obtains the one or more sets of data points relating to the one or more environmental parameters;
- (E) Wherein the computer is capable of communicating with one or more aircraft data sources, wherein the one or more aircraft data sources have recorded thereon one or more sets of data points relating to aircraft parameters pertaining to the landing aircraft, and wherein the computer obtains from the one or more aircraft data sources the one or more sets of the data points relating to aircraft parameters pertaining to the landing aircraft, being chosen from the following group:
- aircraft landing mass, aircraft engine type, number of aircraft engines, aircraft tire type, and aircraft type;
- (F) Wherein the computer communicates with the one or more aircraft data sources and obtains the one or more sets of data points relating to the one or more aircraft parameters pertaining to the landing aircraft;
- (G) Wherein the computer calculates the true aircraft braking friction coefficient of the aircraft landing surface:
- (i) using at least one of the one or more sets of the aircraft performance property data points obtained by the computer from the landing aircraft's flight data management system;
- (ii) using at least one of the one or more sets of the data points obtained by the computer from the one or more environmental data sources;
- and (iii) using at least one of the one or more sets of the data points obtained by the computer from the one or more aircraft data sources.