or the totality of the ammunition 3 contained in the internal container 4 and when the ammunition 3 which was required to be released have been released the internal container 4 can be restored in its position p 1 in the direction illustrated by the arrow f 2 and the doors 12 and 13 can be closed again so as in such a preferred embodiment the dropping part 7 of the internal container 4 can be moved outside the transport airplane ac a piece of ammunition 3 brought in that dropping part 7 can be dropped without having to use any extraction means such as a parachute for example consequently thanks to such preferred embodiment of the system 1 according to the present device system and method the following advantages are particularly obtained no slowing down of the piece of ammunition 3 after dropping thereby enabling in the case of a missile to stay in the field of pilotability of the missile and starting of the engine thereof in such a situation the integration of a missile re acceleration system is not indispensable no equipment is dropped unlike a dropping with a parachute thereby allowing a certain operational discretion and as upon dropping the dropping part 7 of the internal container 4 is located outside the transport airplane ac the collision risks of the ammunition 3 with the latter are strongly reduced and a much more extended dropping field than the usual solution is obtained moreover the rear end 18 of the internal container 4 including the dropping part 7 is formed such that the lower stage 19 does not.