More about the main design fault on the Gaul

In an earlier posting we gave details of the main design fault that was present in the closing arrangements for the duff and offal chute openings on the Gaul (i.e. that that non-return flap plates opened the wrong way). In that posting we suggested that, if for any reason the flap valve was not fully closed, it could be opened by the action of the sea.

In fact, those comments did not reveal the full extent of the problem; the design of the flap valve was such that even if the valve had been in the fully closed position, the forces of the sea could have opened it.

Furthermore, this is not a just a hypothetical scenario, the partial print from one of the Gaul’s drawings (below), shows that there was a lip or ‘free edge’ at the end of the flap for the sea to act on.

And the VIDEO CLIP in our previous post shows in graphic detail just how easy it would have been for this “non-return” flap valve to open and for the seawater to flood into the factory deck of the vessel.

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