Originally Posted by
captain kong
What's more the depth of the river and the draft of the ship allowed for mere inches, or even less, beneath her. With such a narrow margin for error the makers of the ship and the shipyard owners had to carefully monitor the position of the moon and tidal conditions to identify the precise time when the depth of the river would be sufficient for the ship to pass through.
At one point it was such a narrow fit the 121-foot wide ocean liner had as few as two feet on either side of her as she eased through, during a rite of passage known as the conveyance.
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