Aircraft tail cone
View Patent ↗In a rear cone of a fuselage of an airplane a pressurized space is arranged in the rear cone and extends up to an impervious strong wall, placed on a rear portion of the length covered by a fin. The pressurized space constitutes an area accessible to individuals and is able to constitute, in particular, a rest and service area for the crew.
1. A rear cone of an airplane, including a fuselage with a front point and a main portion, the rear cone comprising:
a fin;
a stabilizer; and
a pressurized space arranged in the rear cone and that extends underneath the fin up to an impervious strong transverse wall, placed on a rear portion of the pressurized space, the pressurized space constituting an area accessible to individuals,
wherein the pressurized space extends at least one-half of a length of the fin in an axial direction of the fuselage.
2. A rear cone according to claim 1 ,
wherein the fuselage is separated into two superposed zones by a floor forming a main deck, respectively forming a pressurized and air-conditioned upper zone in which a passenger cabin is arranged, and a pressurized lower zone forming a hold, and
wherein the pressurized upper zone is continued into the rear cone by the pressurized space.
3. A rear cone according to claim 2 , wherein the pressurized space of the rear cone is arranged on a floor placed in a continuation of the main deck and rising gradually by degrees going toward the rear, so as to follow the lower profile of the fuselage, while maintaining a sufficient height for individuals.
4. A rear cone according to claim 2 , wherein the pressurized upper zone of the fuselage includes a main passenger cabin and the pressurized space of the rear cone is separated from the main passenger cabin by a partition that includes a reinforced door.
5. A rear cone according to claim 4 , wherein the pressurized space of the rear cone is pressurized and air-conditioned separately from the main passenger cabin.
6. A rear cone according to claim 1 , further comprising:
an auxiliary power unit located at a rear end of the fuselage,
wherein the pressurized space is continued up to the impervious strong transverse wall located directly in front of the auxiliary power unit.
7. A rear cone according to claim 1 , wherein the pressurized space of the rear cone comprises a rest area for the crew, with storage and service units, berths, and bathroom facilities.
8. A rear cone according to claim 1 , wherein a rear end of the passenger cabin is fitted out as a relaxation zone for the passengers.
9. A rear cone according to claim 1 , wherein the stabilizer is fastened to the fin, to provide in the rear cone a maximum volume compatible with an optimal aerodynamic profile.
10. A rear cone according to claim 1 , wherein at least a part of the pressurized space arranged in the rear cone accommodates a rest module for the crew comprising at least two levels of cells including individual berths.
11. A rear cone according to claim 10 , wherein the rest module is prefabricated in a factory and has a parallelepipedal outer form that slips into holes of a rectangular conjugate form, arranged in the rear cone in at least successive frames of a structure of the fuselage.
12. An airplane, comprising a rear cone according to claim 1 .