Multiple delivery sling-load system and method

1. An add-on sling-load system for multiple deliveries, capable of being attached to a host, the sling-load system comprising:

at least two containers arranged in a predetermined configuration, wherein said predetermined configuration is a stack of said containers mounted one on top of another;

a controlled coupling mechanism reversibly connecting every container to a single adjacent container, wherein said controlled coupling mechanism is configured to attach and release one container at a time from said predetermined configuration, so that the released container is no longer connected to a container above it,

wherein said controlled coupling mechanism comprises a notch and a catch disposed at opposite vertical sides of each of said containers, wherein the notch of one container and the catch of an adjacent container form together a clasp structured to:

become coupled when one container supports the weight of a container below it, and

become de-coupled when the weight of a bottommost container rests on a platform.

2. The system as claimed in claim 1 , wherein said controlled coupling system is configured to release a bottommost container from said stack of containers.

3. The system as claimed in claim 1 , wherein said controlled coupling mechanism is activated from said containers.

4. The system as claimed in claim 1 , wherein said controlled coupling mechanism is activated from said host.

5. The system as claimed in claim 1 , wherein said controlled coupling mechanism comprises at least one attachment mechanism and at least one release mechanism.

6. The system as claimed in claim 5 , further comprising at least one trigger configured to activate said at least one release mechanism.

7. The system as claimed in claim 6 , wherein said at least one trigger is configured to release at least one of the containers.

8. The system as claimed in claim 6 , wherein said bottommost container is released by said at least one trigger.

9. The system as claimed in claim 6 , wherein said at least one trigger is configured to be activated upon one or more of: detection of tension reduction on said sling-load, detection of contact with a platform and manual operation.

10. The system as claimed in claim 1 , further comprising at least one detector.

11. The system as claimed in claim 10 , wherein said at least one detector is configured to detect changes in tension applied to the sling.

12. The system as claimed in claim 10 , wherein said at least one detector is configured to detect contact of at least one of the container with a platform.

13. The system as claimed in claim 1 , wherein said host is a vertical takeoff aircraft.

14. The system as claimed in claim 13 , wherein said vertical takeoff aircraft is selected from a group consisting of: a helicopter, an autogyro, a balloon, a powered parachute, a rocket, an airship, and a crane.

15. The system as claimed in claim 1 , wherein said system is further provided with a sling through which an uppermost container is connected to the host.

16. The system as claimed in claim 1 , wherein:

said catch is disposed on the upper side of each of said containers;

said notch is disposed on the lower side of each of said containers; and

said catch comprises a hook configured to prevent said notch from escaping a grasp of said catch when said clasp is coupled and one container supports the weight of a container below it.

17. The system as claimed in claim 16 , wherein said controlled coupling mechanism further comprises, in each of said containers:

a transmission rod extending vertically along a side arm of the container;

a first pin pivotally coupling an upper end of said transmission rod to said catch; and

a second pin pivotally coupling said catch to the container,

such that, when the weight of the bottommost container rests on the platform said transmission rod of the bottommost container is lifted, pushing said catch of the bottommost container via said first pin, thereby pivoting said catch of the bottommost container around said first pin and releasing said notch of a container above the bottommost container from the grasp of said catch of the bottommost container.

18. The system as claimed in claim 1 , wherein each of said containers is cuboid.

19. A method for delivering sliced loads to multiple locations in a single sortie, said method comprising:

preparing a sliced-load comprising a plurality of slices, wherein each slice is releasably coupled to an adjacent slice;

attaching the sliced-load to a sling;

carrying the sliced-load to a target-location of at least one slice;

releasing solely one slice of the load at a time at said target-location.

20. The method of claim 19 , wherein slices of said sliced-load are to be delivered to a plurality of target-locations, wherein said carrying the sliced-load to a target-location of at least one slice and said releasing said at least one slice of the load at said target-location are repeated.

21. The method of claim 19 , where said preparing a sliced-load comprising a plurality of slices comprises:

stacking said plurality of slices into a stack;

attaching adjacent slices using a coupling mechanism.