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Professional Lifejackets and Suits

Alpha 275 3D

Μanufacturer: Secumar

Code: Alpha 275 3D

Buoyancy chamber improves rotational properties

Air pockets trapped in heavy work clothing or in dry suits often cause great problems if a lifejacket is to rotate the person overboard into the safe face upwards position. Bernhardt Apparatebau’s technical department have come up with a new solution in their intelligent design of the SECUMAR Alpha 275 3D. The secret of the success of this lifejacket from their industrial range lies in the shape of the buoyancy chamber.

Compared with the conventional type of buoyancy chambers, the Alpha 275 3D’s buoyancy chamber is shaped in such a way as to additionally form two almost triangular air cushions when inflated. These stretch almost vertically away from the mid-chest area of the lifejacket wearer. They reach upwards – into the „third dimension“, hence the description 3D.

Anyone who has ever tried to juggle an upturned bottle on his fingertip will recognize the advantages of this: you have to contend with a small contact area and a high centre of gravity – this is why the bottle will easily tip over. This is exactly how the SECUMAR Alpha 275 3D works when its wearer falls face down into the water. The buoyancy chambers inflate automatically, and the weight of the person wearing the lifejacket immerses them in water. The buoyancy of about 280 N gives rise to turning forces which tip the man overboard straight to one side and reliably turn him on to his back.

The new, patented design of the buoyancy chamber has a further pluspoint: the improved visibility of the wearer. This buoyancy chamber protrudes about 20 centimetres higher over the surface of the water than conventional types. A lifejacket light can also be fixed to the jacket at the highest point. This means the man overboard can be more easily seen in heavy seas.

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