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Veering Test Part 2. Anchor Test Video #96
January 30, 2021 · 38 min · 5K views
What this video covers
Steve Goodwin conducts a series of veering tests on four small anchors—a 17-lb Mantis, a 17-lb Xcel, a 21-lb Spade S60, and a 22-lb Rocna—to evaluate their performance in sandy mud and soft mud seabeds.1:25 The test protocol involves setting the anchor at 500 lbs of thrust, then turning the test boat to veer the anchor through a 180-degree arc while maintaining thrust.4:11 The test rig utilizes 80 feet of 5/16-inch chain combined with nylon rode to provide significant catenary.4:45 In sandy mud, the Spade S60 and Xcel demonstrate high stability throughout the veer and subsequent straight-line pulls.11:06 The 22-lb Rocna repeatedly releases during veering tests at 5:1, 7:1, and 9:1 scopes, which the host attributes to seabed adhesion within the roll bar and fluke geometry.17:14 In soft mud at Scow Bay, the 17-lb Mantis holds 630 lbs of thrust before the roll bar bends.21:46 These tests confirm that roll-bar anchors with specific fluke shapes may struggle with mud-fouling in certain substrates.17:14
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