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The invention provides a combustion chamber (3) for launching a fireworks projectile which comprises a container (4) having top wall, bottom and side walls, wherein the top wall which comprises venting holes (1). The invention further provides a launching system', a method for launching a fireworks

The invention provides a combustion chamber (3) for launching a fireworks projectile which comprises a container (4) having top wall, bottom and side walls, wherein the top wall which comprises venting holes (1). The invention further provides a launching system', a method for launching a fireworks projectile, and a kit of parts comprising the combustion chamber (3) or launching system in accordance with the present invention and a propellant charge (7) for use in the combustion chamber (3).

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1. A combustion chamber for launching a fireworks projectile which comprises: a container having top, bottom and side walls, the top wall comprising venting holes; anda perforatable disk positioned adjacent to the top wall closing the holes to gas flow from the container,wherein the perforatable dis

1. A combustion chamber for launching a fireworks projectile which comprises: a container having top, bottom and side walls, the top wall comprising venting holes; anda perforatable disk positioned adjacent to the top wall closing the holes to gas flow from the container,wherein the perforatable disk is adapted to burst when a preset pressure is exceeded in the container to open the holes to vent gas out of the container andwherein the preset pressure corresponds to a pressure for an ignition stage for a propellant comprising a reduced smoke propellant material. 2. The combustion chamber according to claim 1, wherein the venting holes are uniformly distributed over the top wall. 3. The combustion chamber according to claim 1, wherein the top wall comprises 4-10 venting holes. 4. The combustion chamber according to claim 1, wherein the venting holes have a diameter in the range of from 0.5-8 mm. 5. The combustion chamber according to claim 4, wherein the venting holes have a diameter in the range of from 2-4 mm. 6. The combustion chamber according to claim 1, wherein the container is made of steel, stainless steel, bronze, brass, iron, cast iron, aluminum, or any alloy thereof, a plastic, or a fibre reinforced resin material. 7. The combustion chamber according to claim 6, wherein the container is made of stainless steel. 8. The combustion chamber according to claim 1, wherein the container has the shape of a cylinder or a frustum of a cone. 9. The combustion chamber according to claim 8, wherein the container has the shape of a cylinder. 10. The combustion chamber according to claim 1, wherein the combustion chamber is of such a construction and design that it withstands operational launching pressures. 11. A launching system for launching a fireworks projectile comprising a launch tube for holding and successively launching the fireworks projectile and a combustion chamber according to claim 1, in which combustion chamber a propellant charge can be loaded. 12. The launching system according to claim 11, wherein the combustion chamber is arranged such that in operation the propellant charge is in direct contact with the top wall of the combustion chamber. 13. The launching system according to claim 11, the launching system further comprising an igniter which can be brought in the proximity of or in contact with the propellant material contained in the propellant charge when said propellant charge is loaded in the combustion chamber. 14. The launching system according to claim 11, wherein the top wall of the combustion chamber is connected to the launch tube. 15. A kit of parts comprising a combustion chamber as defined in claim 1, and a propellant charge for use in the combustion chamber. 16. The kit of parts according to claim 15, the propellant charge comprising a container containing a reduced smoke propellant material, wherein the perforatable disk comprises a closed layer or confinement of a solid material covering a cross-section of the container and arranged in the upper part of the container, wherein the closed layer or confinement is at least partly perforatable or rupturable by gas pressure generated during ignition of the propellant material in the combustion chamber. 17. The kit of parts according to claim 16, wherein the container of the propellant charge comprises a closed layer or confinement of a solid material which covers a horizontal cross-section of the container. 18. The kit of parts according to claim 16, wherein the layer or confinement of solid material in the container of the propellant charge forms an integrated part of said container. 19. The kit of parts according to claim 16, wherein the closed layer or confinement of solid material in the container of the propellant charge is connected to the inner surface of the container, thereby forming the top side of the container. 20. The kit of parts according to claim 16, wherein the closed layer or confinement of the solid material in the container of the propellant charge is attached to the top or bottom side of the container. 21. The kit of parts according to claim 16, wherein the solid material in the container has a predetermined bursting strength. 22. The kit of parts according to claim 15, wherein the container of the propellant charge and the combustion chamber have a cylindrical shape. 23. The kit of parts according to claim 15, wherein the container of the propellant charge has a shape of: a cylinder, frustum of a cone, or a cone, and the container is produced as a cartridge, a pouch, a cup, a shell or a disk. 24. The kit of parts according to claim 16, wherein the layer or confinement of solid material in the container of the propellant charge is symmetrically arranged over a cross-section of the container. 25. The kit of parts according to claim 16, wherein the layer or confinement of solid material in the container of the propellant charge covers a circular part of the cross-section of the container. 26. The kit of parts according to claim 16, wherein the layer or confinement of the solid material in the container of the propellant charge is in the form of a disk. 27. A method for launching a fireworks projectile comprising the steps: loading a propellant charge into a combustion chamber of a launching system, wherein the combustion chamber is positioned with a launch tube and comprises a top wall with vent holes and a rupture disk, which seals the vent holes, that perforates when a preset pressure is exceeded within the combustion chamber;closing the combustion chamber;loading the fireworks projectile into the launch tube adjacent the top wall and the vent holes, andigniting propellant material contained in the propellant charge, thereby causing the fireworks projectile to be launched from the launching system, wherein the propellant material comprises a smokeless powder requiring a predefined high pressure for completion of an ignition stage and wherein the preset pressure is greater than the predefined high pressure.