Rocna Doesn't Fit...Do I Go with Ultra or Delta?

[RaySea Lady]

I have determined with the prints supplied that the Rocna anchor will not fit my boat. I am looking at a 35 to 40 KG anchor.

I am down to either a Delta or an Ultra that will fit that opening.

This is part of an email I have received from Ultra comparing the two, but Delta just refers me to WM.

Does all this make sense to you guys?

There are several features about the Ultra Anchor that make it have higher holding power and set quicker than the Delta Anchor which ultimately makes it a better choice. The Ultra anchor was engineered from the beginning to be made from and use the benefits of being manufactured from Stainless Steel.
The Delta Anchor was made of galvanized material and then copied in stainless steel.

Holding Power:
The Delta Anchor is an aerodynamic plow shape (there is a reason there is a point on the bow of our boats). This shape allows soil to flow across its face. The holding power of the Delta can be defined as the resistance to friction of the soil on the steel face of the anchor. The Ultra Anchor is a concave shape that builds a plug of soil on the surface of the anchor. This plug of soil stays on the face of the anchor in a pyramid shape and for the Ultra Anchor to move soil must shear soil on soil. The holding power of the Ultra Anchor can be defined as the resistance to friction of the soil against soil. Soil on steel (Delta) can be equated to sliding on glass versus sliding on sand paper (Ultra). For the same cross sectional area, a flat or concave anchor(Ultra Anchor) will have 30 to 40% higher holding power than a plow shape (Delta Anchor) depending on soil conditions


Setting ability:
The Delta Anchor has a high center of gravity and is designed to lay to its side before it catches on the sea floor and begin to penetrate. Any time an anchor must lay to its side there is a potential for the anchor to begin to slide on any grass, weeds or other difficult to penetrate substance. It typically takes 3 or 4 anchor lengths for a Delta to penetrate to developed its holding power. The Ultra Anchor is built with a very low center of gravity. The shank of the Ultra Anchor is hollow, the base is filled with lead. The bouyancy in the shank places the center of gravity when submerged practically at the point of the anchor fluke. The reverse curved chisel tip and low center of gravity of the Ultra Anchor causes the Ultra Anchor to penetrate and developed its extremely high holding power with in its own length without laying to its side. Digging deeper and quicker, the Ultra Anchor will set within its own length. The Ultra Anchor will set with a 2.5 to one scope with or without anchor chain to assist.

Reverses of direction:
With its low center of gravity and reverse wings the Ultra Anchor will stay buried and rotate below the soil surface keeping itself buried. The Delta has to roll out and reset on reverses of direction based on the mechanics of how it is designed to set which potentially leads to dragging conditions.

Materials:
We use only 316L Stainless steel and hand polish to a beautiful finish. The Delta uses only 316 stainless steel and is electro polished to a smooth sheen not the high luster of the Ultra.

Warranty, trade ups and other many other features that make the Ultra Anchor the best anchor for your vessel. Including but not limited to the following
features:

1) A lifetime warranty on workmanship and materials. It will not bend, break, fracture or rust.
2) If you ever decide to purchase a larger anchor and you are the original purchaser you may return your anchor to Quickline USA for full credit and pay the difference to the retail price of a larger anchor.
3) We give you 90 days to test the anchor, if you are not happy you may return the anchor to us for a full refund.