Abstract: Method and device for determining the air turbulence likely to be encountered by an aircraft. The device (1) which is provided on a second aircraft comprises a means (12) for using a turbulence indication from a first aircraft to make a prediction of the impact of the turbulence on this second aircraft if it is located in a particular position, and a means (13, 14) for using this prediction.

Abstract: System for aiding the piloting of an aircraft during the approach to a runway with a view to a landing. The system (1) comprises information sources (3) able to provide information relating to the aircraft and to its environment, a computation unit (4) which determines, with the aid of information provided by the information sources (3), an energy reference profile which preferably comprises a trajectory reference profile and a speed reference profile and which is intended to allow the aircraft to regain a stabilized approach trajectory, if it follows this reference profile, means of monitoring (7) for verifying that the aircraft is indeed following said reference profile, and means of indication (6) which supply the pilot with piloting indications at least to make it possible to pilot the aircraft in such a way that it always follows said reference profile.