Peak loads developed as the test vessel swung around at anchor, suggesting that a well-designed anchor will be able to sustain lateral loads as well as straight pulls used in some tests.

1. A 2-ton load cell we used to measure anchor loads. The data recorder is at the chart table alongside readouts on the chartplotter of the anchored track of the boat, bearing of the boat, wind speed, and depth.

2. Low-stretch Dyneema line (blue) was used between the chain rode and the load cell.

3. Our test boat swung around the anchor through 75 degrees and pivoted a further 60 degrees.