Anchor Savor device query

I had some questions about the Anchor Saver so I emailed the company.

My questions:

1. What is the size and tested breaking strength of the SS cable?

2. What is the material of the shear bolt?

3. What is the material of the swage on the cable?

4. What happens if the boat is anchored and the wind shifts, putting a sideways pull on the cable attachment to the anchor?

5. Does the warranty cover damage due to corrosion of the SS parts where they are clamped to the cable?

6. If the shear bolt shears or fails when not requested, and the boat drags ashore, do you accept any liability for the damage to the boat.


The answer:
Larry,

Sorry for the delay in answering, I had to catch up after a four day boat show.

1. a) 16- 30' boat use 1/4" Stainless Steel 7x19 construction aircraft cable rated at 6700 pounds BLL.
b) 30' and above use 3/8" Stainless Steel 7x19 construction aircraft cable rated at 12000 pounds BLL.
c) Larger custom boats use 1/2" Stainless Steel 7x19 construction aircraft cable rated at 22,000 pounds BLL.

2. Brass Shear bolts are used on smaller boats and silicone bronze on boats over 30'. The Siicone bronze would have to be sheared to thin to use on small boats.

3. We use aluminum and copper swages, machine swaged.

4. Assuming the anchor is stuck and the boat is pulling hard to port or starboard our shear bolt is designed to handle more than the direct pressure put on most anchors. Meaning, that the shank of the anchor on most anchor under 50 pounds will bend easier than our pin will break. You may be surprised to know that common well known brands in the 44 pound and under classification will result in shank bend on a lateral pull under 1500 pounds. Our shear bolts in that instance would require 1850 pounds of pressure and higher to break the bolt.
Please refer to the Fortress table of pull pressure in various wind conditions. http://www.fortressanchors.com/safe_anchoring.html

The most important point is our concept of "Indirect Anchor Pressure". That simply stated means that when you are anchored there is no pressure on our shear bolt. You have to be over a stuck anchor and moving forward to apply direct pressure on the bolt. Because of the bolts measured strength, engine power will be required in order to apply enough pressure to break the shear bolt.


5. We will replace at no charge any cable that is showing signs of wear long before it would fail.

6. We assume no liability to the boat. Please advise me what Anchor manufacturer acknowledges liability to the boat if
their anchor fails. This is probably a typical warranty ....http://www.lewmar.com/support-warranty.asp

If you have any more questions please contact me at 239 272 8574.

Best Regards,


Peter Weinstein, President
Anchor Saver, LLC
239 272 8574
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To answer baensch-ak
Before your joined the group--about 2 years ago I did a series of anchor tests. Test boat was a 18 foot Century with 115 Yahama outboard. I deployed a number of anchors, including a Delta, Manson Supreme, Northhill, 40 HT Danforth, Fortress etc. The Manson Supreme had the best holding of the group--and with full power forward I could not make the Manson drag more than a few inches, as it set in. (PVC pipe markers were used to see how much drag). The bottom was a combination thick mud, sand and a few shells in Perdido Bay. I then used that anchor for about 60 nights at anchor in all types of conditions--mostly on the West Coast, including Alaska, with no draging on a C Dory 25.
 
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