Join Date: Jan 2007
Thanked 0 Times in 0 Posts
Rep Power: 11
Thanks Gary. The AB Chance website had lots of info, drawings, etc.
Looks like their ground / earth screw anchors, which come in a couple of different models / sizes, are re-branded as the Helix anchor (for Marine use), at least that is where the website link takes you, after clicking on mooring anchors.
Anyway, after looking at their design, I welded up a similar anchor to their round stock screw anchor, using a 15" disk.
It took a couple of attempts, standing in a couple of feet of very cold water, at low tide, but I did get it to go over halfway in, before running out of steam. I should be able to finish turning it in this weekend. The ground / bottom there varies between rocky to somewhat sandy, near shore.
The one I built was about 6 ft high, and I feel it will have lots of holding power, if I can get it to go all the way in. I used a 6ft bar to turn it in.
When I find out where the local power companies buy their similar anchors, I may buy one of two, if the price is reasonable, and add a couple more for security.