Importance

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Abstract

The disclosure relates to an enclosure for weaponry, listening, identifying, recording, communications equipment or the like for use in or on the seabed. The enclosure comprises an outer cylindrical container (10) having a buoyancy chamber (34) to render one end (11) of the container more buoyant than the other (12) so that the container lies in a vertical orientation when disposed in the sea. At the other end (12) of the container there are propeller/impellors (28) for activating sand/silt/shingle on the seabed to create a cavity below the container into which the container can self bury. A container has a payload compartment (32) for holding weaponry, listening, recording and/communications equipment. The container was has a double (13,14) wall partitioned (15) to form a plurality of separate passages (A,B,C) extending spirally from inlets (16,17,18) at the lower end of the container upwardly to outlets (25,26,27) at the top of the container through which activated sand/silt/shingle and water generated at the lower end of the container can flow upwardly and freely as the container self buries in the seabed.

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First Claim