Aircraft with palletized functional units

1. An aircraft, comprising:

a cargo compartment having a cargo compartment floor;

at least one functional unit selected from the group consisting of a water tank and a waste-water tank; and

a pallet supporting said functional unit, said pallet being adapted for the transportation of said functional unit into said cargo compartment and being provided with a fixation means that provides a stable connection to said cargo-compartment floor, such that the pallet lays on the cargo-compartment floor between the cargo-compartment floor and the functional unit;

wherein said at least one functional unit comprises at least one pipe connector, and

wherein said at least one pipe connector is connected to a corresponding pipe connector provided on or below said cargo compartment floor.

2. The aircraft according to claim 1 , wherein said cargo compartment comprises guide means adapted to guide said functional unit as it is being transported within the cargo compartment.

3. The aircraft according to claim 1 , wherein at least one section of a partition is mounted on said pallet.

4. The aircraft according to claim 3 , wherein said functional unit is mounted on said at least one section of a partition.

5. The aircraft according to claim 3 , wherein said partition comprises sealing means whereby it is sealed to parts of the aircraft defining said cargo compartment.

6. The aircraft according to claim 1 , wherein said cargo-compartment floor comprises floor elements that are connected to supporting beams to form prefabricated floor modules.

7. The aircraft according to claim 6 , wherein sections of conducting devices comprising at least one of cable channels, hydraulic conduits, water conduits, an air-conditioner duct and electrical leads are provided in the floor modules in such a way that those in one floor module connect with others of the same kind in adjacent floor modules to form overall conducting systems on installation in the aircraft.

8. The aircraft according to claim 7 , wherein at least one of said conducting devices comprises a branch adapted for connection to a prespecified place on at least one of said floor elements and said functional unit.

9. The aircraft according to claim 6 , wherein said cargo-compartment floor comprises a plurality of prefabricated floor modules and wherein a plurality of assembly elements are provided to connect each of said floor modules to an adjacent floor module during or after installation in the aircraft.

10. The aircraft according to claim 6 , wherein said floor elements comprise sealing devices adapted to seal off a space defined above said floor elements from a space defined below said floor elements.

11. The aircraft according to claim 6 , wherein leakproof connecting elements are provided and form a leakproof connection between each of said floor elements and at least one of adjacent floor elements and the skin of the aircraft.

12. The aircraft according to claim 6 , wherein drainage devices are provided to carry a liquid out of the cargo compartment and to transfer said liquid into a corresponding drainage device of an adjacent floor module.

13. The aircraft according to claim 6 , wherein said floor modules comprise insulating devices adapted to insulate a lower portion of a fuselage of the aircraft.

14. The aircraft according to claim 13 , wherein said insulating devices are attached below said floor elements and/or in the region of the supporting beams near to said skin of the aircraft.

15. The aircraft according to claim 6 , wherein said floor modules comprise at least one of a partition wall and a fixation device for a partition wall.

16. A method of installing functional units in an aircraft comprising a cargo compartment with a cargo-compartment floor, comprising the steps of:

providing at least one functional unit selected from the group consisting of a water tank and a waste-water tank, said functional unit comprising at least one pipe connector;

providing at least one pallet;

mounting said functional unit on said pallet outside the aircraft;

loading said functional unit mounted on said pallet into the aircraft;

transporting said functional unit mounted on said pallet over said cargo-compartment floor to a destination site in the cargo compartment;

fixing said functional unit mounted on said pallet to the cargo-compartment floor at the destination site; such that the pallet lays on the cargo-compartment floor between the cargo-compartment floor and the functional unit; and

connecting said at least one pipe connector to a corresponding pipe connector provided on or below said cargo compartment floor.

17. The method according to claim 16 , wherein at least sections of partition walls are mounted on at least one of the pallets and the functional unit while they are outside the aircraft prior to installation therein.