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    Re: Grounding incident by a cottage in Norway...
    From: Frank Reed
    Date: 2025 May 28, 14:25 -0700

    There's an article from AP here. The captain of the tug that pulled the vessel off is quoted saying it "went better than expected".

    I dug around and found a nautical chart of the location of the grounding. I clipped a section. See below. There's a little pink mark on the chart that's just about the right size and in the right spot. Could it be that live online charts are updated with info like this so quickly? If so, that's impressive.

    Given the depth contours on the chart and measuring a distance along the shore, it's apparent that the slope of the bottom here is about one in five. The 100m depth contour is about 500m from shore. Assuming that average slope applies, corresponding to a tilt of about 11°, and assuming a hard enough bottom (hard clay?) yet also without any local obstacles that are too hard (boulders!), then the vessel could ride up onto shore safely below my suggested limits in my first post, and again that's consistent with no reported injuries among the crew. The deceleration could have been on the order of 0.1g with that slope.

    Frank Reed

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