Abstract: This system ensures autonomous protection of an aircraft against deliberate crashes resulting from a malicious act of a person on board or a trajectory error. It comprises a prohibited zone anti-penetration (cons. anti-collision) rig OAPS (54) operating in the manner of a terrain anti-collision rig TAWS (51) but intervening at the level of the flight controls (12) so as to impose an avoidance trajectory on the aircraft (83) when the need therefor is felt. This prohibited zone anti-penetration (cons. anti-collision) rig OAPS (54) uses a database (60) holding information about the prohibited zones and a system for positioning (106, 306) of the aircraft (83). Supplemented with a terrain anti-collision rig TAWS (51) and a rig for protection of the limits of the flight domain FELPS (53), it makes it possible to produce a very complete flight protection system.

Abstract: The invention relates to the making available of “Internet” services, at the level of the seats (4) of a passenger cabin of an aircraft, in the case of aircraft that were not designed at the outset for such services but that have a passenger cabin provided with an electrical power distribution network serving groups (1, 2, 3) of passenger seats (4) by way of distribution boxes (9). It consists in mounting in the passenger cabin, a data exchange local area network with “Internet” access, dedicated to the portable microcomputers of the passengers, which uses network connection taps accessible from the passenger seats (4) complying with a regular standard for portable microcomputers and wireless links for joining these network connection taps to its server, interface cards ensuring the changes of standard at the level of the network connection taps and rendering the wireless links transparent to the user passengers.