ANCHORING KIT ULTRA W/ GALVANIZED CHAIN

Property

QTY

1

DESCRIPTION

35 kg Ultramarine 316 stainless steel anchor + 70 m grade 70 galvanized chain 10 mm diam + 50 m rope 3 brands diam 16 mm. Includes Ultramarine Flip Swivel.

MANUFACTURER

Ultra Marine

URL

https://www.ultramarine-anchors.com/anchor

MEDIA

CATEGORY

PREP & MOORING

TODO

• O52 options with Ultra Marine anchor
• SPADE
• ULTRA
• UNIQUE FEATURES
• GENERAL DESCRIPTION
• ULTRA ANCHOR RING
• ROCNA
• LEARNING
• Summary
• HOW TO ATTACH THE BRIDLE TO THE ROPE

• Loic Helies: "In my opinion, the 2 pieces of equipment that deserve highest consideration on a blue water cruising boat are the autopilot (when sailing) and the ground tackle (rest of the time)."
• Loic Helies: "Based on our experience with Moby (51#39), on which we had a Spade 30 kg and 75 m of 10mm chain. All the chain gets straight with 40 knots of wind, leaving only the nylon bridle to dampen the forces."

• Any concerns with mixing Stainless Steel and Galvanized Steel?
• Does Outremer have a document showing the weight per meter and the breaking load of both the 8mm and 10mm galvanized chains?

Loic Helies: In my opinion, the 2 pieces of equipment that deserve highest consideration on a blue water cruising boat are the autopilot (when sailing) and the ground tackle (rest of the time).

O52 options with Ultra Marine anchor

Galvanised Steel Short Link Chain | 5mm to 20mm | GS Products

A: It is sold per meter, so for example if you want a single 10 meter linear length in 1 piece simply add 10 into the quantity box of the diameter chain you require and we will supply 1 x 10 meter length Q: Can I order over the telephone?

www.gsproducts.co.uk

• O52 options with Ultra Marine anchor
• SPADE
• ULTRA
• UNIQUE FEATURES
• GENERAL DESCRIPTION
• ULTRA ANCHOR RING
• ROCNA
• LEARNING
• Summary
• HOW TO ATTACH THE BRIDLE TO THE ROPE

SPADE

ULTRA

UNIQUE FEATURES

• Hollow Shank: Enables weight to be concentrated on anchor tip.
• Tubular Construction: Anchor cannot lie on its spine and recovers instantly to the attack position. Anchor will also load correctly into the bow roller.
• Lead Filled Tip: Lead is inserted into the anchor tip, achieving the optimal weight distribution and ensuring the anchor will penetrate unfavourable bottom conditions.
• Scratch-Catch Point: Especially, it is positioned at bottom. It prevents dragging and provides instant set when anchor moves.
• Curved Tip: Importantly, the anchor tip is shaped downwards, ensuring a continuous setting under unfavourable weather conditions. Its angles on the other hand let it help anchor instant set even the anchor is not at the right attack position.
• Max Holding Power Base: The concaved base/fluke has the appearance of a shovel and has extreme holding power with a grater surface area than conventional style anchors. The result is more secure, higher holding power anchor that will not release.
• Reinforced Eye: Even under the most extreme load the shank’s reinforced eye will not bend, break or fail.
• Flat Underside: Once you begin to recover the anchor from the sea floor, it pivots itself on the flat section and begins to release (boat should be directly over anchor).
• Side Wing Plates: The ULTRAnchor does not release in a changing wind or tide, it performs a complete 180 degree rotation (while still buried) on its own length and holds firm. On the other hand, it helps easy transport and a continuous geometry on bow rollers.
• Non Chain-Foul Bar: Often chain can foul around the shank of the anchor, resulting in the anchor not able to set. The clever design features of the non chain-foul bar ensures chain simply cannot wrap around the shank and provides the ability to attach a trip line. On the other hand, it helps easy transport and a continuous anchor geometry on bow rollers.
• Anchor Weight Detail: The anchor weight is stamped into the shank and identifies the anchor size in both kg’s and Ibs.
• Serial Number: Every ULTRAnchor is stamped with a unique serial number, ensuring your anchor is always identifiable.

GENERAL DESCRIPTION

• Manufactured in Turkey, the ULTRA Anchor range is the pinnacle in anchoring technology and design. Completely hand made from 316 stainless steel and hand polished, every ULTRA Anchor is designed for excellence.
• The ULTRA Anchor demonstrates why a correct weight distribution and design is so important when setting and recovering your anchor. In fact, invert any ULTRA Anchor and it will instantly recover itself to the attack position.
• Such performance has been achieved with the innovative patented features this anchor displays; including a curved lead filled tip for instant penetration, a hollow shank for optimal weight distribution, concaved base surfaces for maximum holding power and large side wing plates to avoid release during changing wind or tide conditions. Furthermore, each anchor is easily recoverable with the flat pivot surface on the underside base.
• The ULTRA Anchor is suitable for all vessel types and locates securely onto the bow roller. Standard anchor sizes range from 5kg to 360kg with larger anchors available upon request.
• Sourcing Europe’s finest materials and fabricated by specialist engineers, the ULTRA Anchor is supplied with a LIFETIME WARRANTY against manufacturing defects under normal conditions and use. We don’t compromise on quality or design, nor should you – protect your investment in style.

ULTRA ANCHOR RING

• Increases safety by adding weight to the anchoring system (closer to the anchor)
• Shorter scope by reducing the chain length in cases of limited anchorage area
• Use as an anchor retrieval and recovery tool to free the anchor
• Extra weight for exercise 😀

ROCNA

LEARNING

Summary

• Autopilot (when sailing)
• Ground tackle (rest of the time)

• Forces that act on an anchored boat: the wind (windage models, wind velocity gradient), the sea (waves, current, moving boat) and the bottom (anchor+rode). "Having a fair length of chain lying on the bottom is not intended to increase the holding power via the chain friction on the bottom, but instead to keep the tension on the anchor horizontal when the rode tightens." Boat motions Theory says a vessel, like any solid object, has 6 degrees of freedom: 3 translations (e.g. longitudinal, lateral, vertical) and 3 rotations (e.g. roll, pitch and yaw). For a boat at anchor, 4 motions are important regarding the dragging risks:
• Pitching, which we mentioned above.
• Surging, which is a forward and astern motion relative to the anchor, caused by the wind force variations.
• Yawing, which is a rotation around a vertical axis, caused by the wind direction variations.
• Swinging, which is a nearly circular movement around the anchor, caused by yawing.

• Function: The anchor is the "fixed point" of the anchoring.
• Req. 3: An ideal anchor should "hold" (= remain in the same place) whatever the direction and magnitude of the forces that act on the boat. A real anchor will hold under 2 external necessary conditions:
• The anchor has been correctly set.
• The rode pulls the anchor in an appropriate direction (see Req. 4 below). Rode
• Function: The rode acts as a link between the anchor and the boat.
• Req. 4: The rode should pull the anchor in a direction that allows it to offer the required holding force.
• Req. 5: The rode should be easy to stow, wind and unwind aboard. Req. 6: The rode should reduce the tensile stresses caused by gusts/waves on the anchor and boat accessories. (dynamic behavior)

• Condition 1: the fluke(s) must be completely and symmetrically buried in the bottom (fig. 4.2 and 4.3)
• Condition 1 bis: if present, the articulation must be in the "open" position (fig. 4.1a and 4.1c).
• Condition 2: conditions 1 and 1 bis should remain if the magnitude of the pulling force changes.
• Condition 3: conditions 1 and 1 bis should remain if the heading of the pulling force changes.
• Condition 4: the tension on the pulling eye of the shank must be parallel to the seabed. If the rode cannot maintain the tension on the pulling eye parallel to the bottom, the holding power is reduced, depending on both the angulation and the anchor design. Conclusion: The above formulae and graphs should be used very cautiously, for at least 3 reasons:
• They are meaningless if the anchor is not correctly set.
• They do not take the anchor design into account.
• Estimating the holding quality of the seabed is a bit of challenge!

• Can pull the anchor parallel to the bottom? | Yes | No, unless veering out a very long line
• Easy to stow? | Yes, but very heavy | Yes
• Easy to wind and unwind? | Yes (with a motorized windlass) | Yes Thus, except for moderate weather conditions, none of these homogeneous technologies are really satisfactory. In the next page, we shall study the static behavior of heterogeneous rodes. RODE - STATIC BEHAVIOR (2) - HOMOGENEOUS RODE Conclusion: Let's check both technologies against the criteria defined at the top of the previous page (Req. 4 and 5): Criterion | Kellet | Mixed (Chain + Textile)
• Can pull the anchor parallel to the bottom? | Yes, but limited by kellet weight | Yes
• Easy to stow? | No (kellet) | Yes
• Easy to wind and unwind? | No (kellet setting-up and removing) | Yes Theoretically, the Textile + Kellet solution gives the best "effectiveness/weight" ratio, but only if the kellet is close to the anchor. Unfortunately, handling a heavy kellet is difficult and dangerous, so it turns out to be unsuitable in strong wind conditions unless the scope is very large. For the same on-board weight, a mixed rode is slightly less effective, but it suffers none of the drawbacks of the kellet solution. Of course, adding a kellet to any combination of chain and textile is not forbidden! Now that we master the static behavior of an anchoring rode, we are ready to tackle the effects of wind gusts, which are responsible for most dragging situations. DYNAMIC BEHAVIOR (1) - HOMOGENEOUS RODE Conclusion: Let's check both technologies against the criteria defined at the top of this page (Req. 4, 5 and 6): Criterion | All-chain | All-nylon Can pull the anchor parallel to the bottom? | Yes | No, unless veering out a very long line Easy to stow? | Yes, but very heavy | Yes Easy to wind and unwind? | Yes (with a motorized windlass) | Yes Reduce the tensile stresses? | No | Yes So, an all-chain rode is both dangerous for the anchoring tackle and prone to dragging. On the other hand, an all-nylon rode is safe, but it needs very high scopes that can be incompatible with tight anchorages. Anyway, even with a chain rode, strong gusts always require a very high scope to maintain the anchor (almost) flat on the bottom. In the next page, we shall study the dynamic behavior of heterogeneous rodes.

• A long mixed-rode, typically with a 50/50 length ratio. The nylon section should be spliced into the last links of the chain, so that it does not jam through the windlass (fig. 2.2.4).
• An auxiliary 10 to 15 m (30 to 50 ft) nylon rope, ended with a chain hook (fig. 2.2.5). This device is used to take the chain up when the water height and/or the wind conditions do not need to veer all the chain section of the rode. In every case, there must be at least 10 m of nylon in the active rode - more precisely, between the bollard and the chain section (fig. 2.2.6). If you're rich ;-) or you don't want the hook in the water, you can shorten the auxiliary rope, under the condition it is fitted with a spring or rubber snubber like those used on dock lines (fig. 2.2.7). When choosing such a device, however, check that its elasticity range matches the tension range it will have to cope with! Please remember that, even with a heavy rode, strong gusts always require a very high scope to maintain the anchor (almost) flat on the bottom. Waves also require higher scopes: since they lift the bow up, they increase the effective height to consider when deciding the rode length to veer out. For example, if the waves cause 1 m (3 ft) pitching at bow and the scope for a calm sea is 6:1, adding 6 m (18 ft) more rode (preferably nylon, cf. fig. 2.2.8) would be safe. DYNAMIC BEHAVIOR (3) - YAWING AND SWINGINGConclusion: Let's check both technologies against the criteria defined at the top of this page (Req. 4, 5 and 6): Criterion | All-chain | All-nylon Can pull the anchor parallel to the bottom? | Yes | No, unless veering out a very long line Easy to stow? | Yes, but very heavy | Yes Easy to wind and unwind? | Yes (with a motorized windlass) | Yes Reduce the tensile stresses? | No | Yes So, an all-chain rode is both dangerous for the anchoring tackle and prone to dragging. On the other hand, an all-nylon rode is safe, but it needs very high scopes that can be incompatible with tight anchorages. Anyway, even with a chain rode, strong gusts always require a very high scope to maintain the anchor (almost) flat on the bottom. In the next page, we shall study the dynamic behavior of heterogeneous rodes. ACCESSORIES In the Anchoring Tackle chapter, we stated the function of the anchoring gear and the requirements it must meet: Function: The anchoring tackle is intended to temporarily "tie" the boat to the seabed. Req. 1: A perfect anchoring tackle should hold the boat whatever the predictable local wind and sea state. It should withstand the corresponding efforts without damage (Working Load Limit). Req. 2: Setting as well as weighing the anchor should remain easy. The previous chapters focused on the behaviour of anchors and rodes in order to choose and "tune" them according to the anchoring situation. Unlike those critical components, the other ones, either essential (anchor rollers, shackles, bollards, etc.) or optional (windlass, swivels, etc.) can be chosen once for all.

1. Essential Accessories Req. 1 is a matter of safety. Just one example: Assume we decided that we need a mixed rode with a 3/8" (or 10 mm) galvanized steel chain. From a catalog, we find a 3/8" BBB chain has a 2650 lb (1200 daN) WLL (Working Load Limit) and an 11000 lb (5000 daN) BS (Breaking Strength). For the nylon part of the rode, we choose a 3/4" (or 18 mm) single-braid rope, which has a slightly higher BS 13500 lb (6000 daN) in order to take into account strength reductions due to splicing, chafing, ageing and water. To connect the chain to the anchor, we may select a galvanized steel screw pin anchor shackle one size larger than the chain, i.e. a 7/16" (or 12 mm) one - its pin will still fit the chain link while offering a higher strength (WLL 3000 lb = 1400 daN). The bow roller and the bollard (including their fastening to the deck) should have at least twice the above WLL and BS.
2. Optional Accessories Any extra accessory that is inserted anywhere into the rode should be stronger than the the chain – otherwise, it would considerably weaken the whole rode! Always check the strengths (WLL and BS) of the accessories you buy in the manufacturer's catalog. If, for corrosion resistance reason, you choose SS (stainless steel) components, remember that SS becomes brittle when ageing, especially under cyclic efforts in salted water. In other words, you should replace your SS anchoring tackle much more frequently than your sailboat's rigging! Finally, never use riveted links to connect 2 pieces of chain together: their strength is generally far below that of the chain the same size! And beware of some nice-looking SS swivel connectors that are much weaker than their specifications claim... On the other hand, req. 2 is a matter of personal assessment. For example, a 1000 W windlass may be considered to be sufficient on a 15 ton boat (some boats this size have only a manual one!) but a 1500 W windlass obviously proves more comfortable.

HOW TO ATTACH THE BRIDLE TO THE ROPE

Mantus Snubber Pendant - Pendant Line | Mantus Marine

The Mantus snubber pendant attaches the snubber line to chain or line rode. Ours are made of the strongest UHMWPE material for extra durability. Buy yours now!

www.mantusmarine.com

Ruediger T. von Schiller

This discussion is reoccurring but anyway...

30kg spade as primary with 60m chain + any length rode are sufficient.

In 10m of water going 5:1, this is 60m (depth+freeboard*5) out which is actually hooked at 50m due to 10m bridle but only 25m of chain is actually in the sand. So max depth on chain is 12m with about 25m hanging free.

These 25m could be rode unless you want to have a storm setup where you hang on 100m rode attached to two 50m chains with two anchors.

Our storm setup (+55kts) is fortress 55 with 5m chain - 25m leaded rode - 25m rode perpendicular to 26kg spade - 60m stainless 318LN =both hooked on 30m 22mm Liros superyacht mooring lines (forgot what it is but like double the holding power of 3strand). I can double that up or extend it by another 30m and add a 40m 3strand as backup.