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Helix Anchoring

We have more than 20 years of Helix installations, world-wide.

helix moorings

Helix Moorings


Helix Moorings


We have almost two decades of world wide experience installing helix anchors & pilings. We've anchored boats, docks, piers, breakwaters, bulkheads, piplines, fish pens, navigation buoys & scientific equipment.
helix mooringshelix moorings

Methods of Installation

Helix Anchors are installed either from the surface or with submersible equipment. We have perfected both methods of installation to accommodate whatever situation the conditions dictate. Boatmoorings.com has equipment that can be mobilized wherever the need may be.

Sizing of Anchors

Helix anchors can be sized according to your holding requirements. Typically, the soil and holding requirements dictate the number of helices and length of the anchor. Each helix plate acts as a separate anchor, using the soil above it to achieve holding power. With our specialized equipment, we can determine the holding achieved by each anchor while it's being turned into the substrate.

helix mooring sizehelix mooring graph

How Do Helix Anchors Compare?

Following is a chart produced by BoatUS Insurance. They conducted an independent test on the various types of permanent mooring anchors on the market and found the helix anchor to offer the greatest holding. The cost of the helix anchor and installation per pound of holding power was clearly the most favorable. See chart below.


Mooring Type
Helix
Dor-Mor
anchor
650 lbs
mushroom
500 lbs
single
block
2k lbs
double
block
8k lbs
Resisting Force
(lbs.)
12,000
4,500
1,200
800
4,000
Water Depth
20
18
15
14
35
Scope
4:1
3:1
3.5:1
3:1
3:1
Est. Cost
$850
$1,125
$1,100
$350
$550

Additional Holding with Less Scope

In cases where more holding power is required, a three point system can be installed to triple the holding of what the single helix offers. Bridled together and sized accordingly, these systems can be engineered to securely moor very large vessels.

This type of mooring also offers the advantage of cutting down on the size of the swing radius of the vessel by lessening the amount of scope required.

Flotation can be added to keep the ground tackle off the bottom, causing far less damage than the conventional long scope chain.

helix mooring diagram

For additional information about Helix Anchors and Helix Anchoring Systems go to: www.helixanchors.com

 
 


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