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Abstract

A pontoon for military collapsible floating bridges and crossing ferries, including two inner floatation bodies and two outer floatation bodies, which are connected to one another by simple hinges. The outer floatation bodies have, adjacent to the inner floatation bodies, a slightly rising, level first deck section and, attached to this and forming a step, another rising, level second deck section. Furthermore, the outer bodies have a lateral wall, which forms a freeboard that acts as an over-wash protection. The inner and outer floatation bodies can be folded into a W-shape for transport. When folded the second deck section of the outer floatation bodies lies flat on the deck of the inner floatation bodies. The bottom of the outer floatation bodies is flat and is aligned with the bottom of the inner floatation bodies. The outer floatation bodies are wider than the inner floatation bodies. So that the center of buoyancy of the outer floatation bodies is as far as possible from the hinge. The lateral wall is a circular cylindrical section which intersects with the bottom so that the tangential plane on the intersection line with the bottom encompasses an angle of approximately 10 to 20 degrees.

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