System for collecting and analyzing data relating to an aircraft

A system for collecting and analyzing data relating to safety and comfort criteria of an aircraft, the system comprising:

• an acquisition unit configured to acquire basic aircraft information before a flight of said aircraft and values of flight parameters during the flight of said aircraft, said basic aircraft information and said flight parameter values forming a first set of digital data;
• a measurement unit configured to measure values of environmental parameters of the aircraft during the flight of said aircraft and to record a second set of digital data representative of said environmental parameter values;
• an analysis unit configured to analyze said first and second sets of digital data;
• a first radio communication system configured to transmit sets of digital data between the acquisition unit and the measurement unit;
• and
• a second radio communication system configured to transmit sets of digital data between the measurement unit and the analysis unit.