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Go Back   SailNet Community > On Board > Gear & Maintenance > Stern anchor suggestions
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Topic Review (Newest First)
01-05-2005 04:59 AM
PCP
Stern anchor suggestions

Some facts and figures about some anchors:

Holding power, first in Sand then in Gravel.

CQR Lewmar(16,5kg)- 900kg - 650kg best numbers but "with a big snag: when dragged it finishes up on its back...so it did not rebed".

Brake MPI(20kg, but same size)-1000kg-400kg
"it doesn''t have the consistency of the spade or CQR" (can suddenly break out).

Delta Lewmar(15,5kg) - 400kg - 350kg

Spade (15kg)- 900kg - 300kg "..it is almost impossible to break out. It drags very slowly while maintaining excellent holding power".

Topguard MPI(16kg) - 350kg - 150kg

Claw Lewar(14kg)(type Bruce)- 150kg- 100kg

FHD Plastimo(15kg)(type Bruce)-220kg-150kg

Aluminium anchors

Spade (6,5kg) - 650kg - 70kg "in gravel the spade does not bed in."

Fortress(6,5kg) - 370 - 25

Tests take place with 21m of chain (10mmm) with a 5/1 scope.

Some examples of the wind force in a 12m boat.

15knots-130kg 30knots-540kg 42-1000 60-2180
120-8720

Test published in "Yachting World" Jan 2004.


Paulo





01-04-2005 06:55 AM
almostbroke
Stern anchor suggestions

Since this has turned into an all-around discussion on anchors(not just stern anchoring), I''ll throw in a few cents worth. A 35 lb CQR with all chain rode never let us down in Florida, the Bahamas, Caicos, and the Dominican Republic. For big blows, such as the one hurricane Ivan just pummeled us with in the Florida panhandle, I give kudos to the Fortress. I anchored my Nic 32(13,000 lbs) with a Fortress 23. With 165 ft of chain out, I also placed the 35 lb CQR 40 ft from the Fortress as a sentinel/in-line anchor. After the blow(gusts of 126 here) I was one of the very few still at anchor(only 3 of us out of about 30 in our anchorage). Unfortunately a 20,000 lb ketch dragged down on me and stayed on me for the duration of the storm. That''s 33,000 lbs of boat that hung on the Fortess & CQR for the storm. The shank on the Fortress was bent about 35 degrees, probably from the wind shift. I must admit though the FX 23 is harder to set when there is a lot of current, as it is so light it tends to "sail down". It is much easier to handle when setting by dinghy for kedging or Bahamian moor than most others. My stern anchor for emergency deployment is a Barnacle. It is slightly easier to handle by hand than the CQR, and takes up a little less space on the stern. It is a good all-around bottom anchor, if there is such a thing. I don''t place as much faith in it as the other two, but for my appilcation it seems alright. I have a roll of Ankarolina for it that greatly reduces the room needed for rode, but have yet to come up with a suitable arrangement for permanent mounting. As for all anchoring(or in playing Euchre), my motto is "go big or stay home".
Jim
01-03-2005 02:30 PM
jkumin
Stern anchor suggestions

As mentioned, it is all about intended use and type of bottom. One caution about the Fortress. We have found they need extra care in setting. As an emergency hook (the first use listed), they may not be the best as they tend to "sail" along the bottom unless you are nearly stopped. That said, once set in the type bottom Danforth style anchors like (sand or mud), they hold very well. We were hanging on a Danforth 12H with maybe 6'' of chain and 1/2" rode once in a 36'' boat when a 40'' steel ketch dragged into us at 3 am. It was blowing maybe 25 knots so not that bad. They had a 45# CQR and hundreds of feet of chain. Hard mud bottom. We tied them on and our toy setup held us both the rest of the night. Suspect people sometimes rely on hardware like lots of chain in place of a little care in setting. The difficulty for a stern emergency setup is the time for a careful set may not be available.



01-03-2005 09:12 AM
sailnaway
Stern anchor suggestions

I love my little Danforth it is a small one not sure but maybe 25lbs. This has 6''of plastic coated chain and 200''of half inch line 38 foot 11 ton boat. This little rig as light as it is has held in some blows that were really hard. I have no problen getting it out or in I use a set of hangers I got from the West Marine that are for hanging the anchor from the pulpit but I used them and hung the anchor off my stern ladder.I have a bad heart and this is a good rig for no stress other than I have to use my big winch to break the anchor out,which is good.
01-03-2005 04:22 AM
PCP
Stern anchor suggestions

Santeana is right.

I have some experience in the Med (several years), mainly in the South Coast of Spain and the Balearic Islands. The anchorages are so crowded or are so small that in the ones that are suited for using a bow anchor, it is much more simpler to take a line ashore.
The ones that have a bow anchor setup are normally Scandinavian boats (they use it in their waters) and in a lot of Scandinavian boats this setup comes as an option. Perhaps you should take a look at some setups, it would give you some ideas that probably work well.

http://www.reginayachts.se/index-en.html

http://www.sirius-werft.de/EN/sirius.html
01-03-2005 03:19 AM
santeana
Stern anchor suggestions

No claim to expertise but in a couple of Med charters stern ''anchoring'' consisted of taking lines ashore. The hook never went in the water! One boat was equipped with a stern drum for storing, deploying and retrieving the 3 strand nylon warp which certainly aided us Weak and Lazy charterers. I saw several yachts using stern drums, some deploying nylon tape as the warp medium. No experiece of this (Scandinavian?) method but it seemed a very neat set-up.

On my boat - sailing presently SW Scotland and N.Ireland - I''m using a 25lb CQR as the kedge on chain/nylon but like others find it unfriendly, hard labour and a gel peril. I''m using hose and chaf-pro tubes as a preventative. Thinking about installing a drum; definitely need a stern roller and fairlead plate. Ron
01-02-2005 11:00 AM
Billpjr
Stern anchor suggestions

My $.02...
I''ll probably get some flak on my opinion but it is based on cruising (not hearsay) FL and Bahamas in sailboats and owning CQRs, Danforths, Fishermen, Northills, Alum Fortress and various others...but no Bruce types.

For Florida (soft/hard sand) the Bahamas (grass/sand) your 35lb CQR with 3/8" chain on a 20k lb boat is basically a lunch hook for fair weather. If the winds pipe you will eventually drag. Put 25'' of chain on a 35CQR and that is a marginal working size for 10K lb sailboat.

The 45lb CQR w/50'' chain is a working anchor for a 20k lb boat. It will be hanging on the chain in hard blows and may drag in severe t-storm squalls.

The 35lb Danforth will out perform both by a large margin in sand/grass with only 10'' of chain and 7x scope.

I don''t do CQRs or aluminum Fortress types. CQRs have to be massively heavy to equal Danforth lightweights. My experience with an aluminun Fortress wasn''t positive. It was equal in size to a 40lb standard Danforth but weighed same as 16lb Danforth S. It was light to handle but the lightweight flukes didn''t set easily. They wouldn''t press down grass and set like the heavier Danforth.

For a "stop at the dock" anchor I''d do the 35 Danforth with 15'' of chain and place it at the stern. Then run the line back to the bow so it gives at least a boat length of scope when you first drop it...one boatlength may save you from hitting the dock. It will turn the bow for you this way too.

You didn''t ask but here''s what anchors I carried on a 24k lb sailboat for FL/Bahamas.
(2) working 22lb Danforths off the bow.
(1) storm 40lb & 60lb Danforth
(1) 50lb yachtsman (hard grass and coral)
(1) 45lb Northill (coral)
(2) 13lb Danforth kedges
(2) 8lb Danforth kedges
(1) 2.5 lb Danforth - dink

Had a 25lb CQR, 45lb CQR with all chain on this boat and the alum Fortress. Sold them all and replaced with Danforths. I tried hi tensiles but preferred standards. I also sold the all chain rodes and went with short chain and nylon. Always two anchors out when cruising so I didn''t worry about tripping.

To each his own with anchors...but I wouldn''t go cruising without plenty of them.


01-02-2005 01:54 AM
GordMay
Stern anchor suggestions

There’s nothing easier to handle than a lightweight aluminum Fortress anchor.
The “FX55" that Jack mentions is about the same weight as your 35# Danforth, but the FX37 has about the same holding power, at 2/3 the weight.
Each anchor in a Bahamian Moor should have equal holding poower - there’s no secondary anchor in this set-up.
01-01-2005 03:07 PM
WHOOSH
Stern anchor suggestions

W&L:

It sounds like you have more of a need for a kedge anchor and a 2nd bow anchor, neither of which would need to serve as a ''real'' stern anchor. E.g. I think you''d be happier doing your Bahamaian moor with two bow anchors, for multiple reasons.

For portability - when needing a real kedge anchor & rode - I think your not sticking to your namesake (W&L) by trying to use your 35# Danforth. It''s certainly not easy to handle, by weight, form factor or dimensions, even before the weight of the chain is added. I think this is why having a Fortress on a boat is quite helpful. It''s light weight (and in the right conditions, super holding power) make it an ideal kedge.

I''m thinking that one of the ''must do''s'' for WHOOSH is to add some kind of sacrificial surface against which the chain can grind and scrape, on the outer side of the stern roller, to protect the gelcoat and the caprail back aft. I''m carrying some PVC sheet back with me for that reason.

Jack
01-01-2005 09:07 AM
mmccoy
Stern anchor suggestions

Whoosh,

Ah, yes. I guess it would be an important point to explain how/where I''ll be using it.

I''ll be in the Gulf/Caribbean/East Coast for the foreseeable future. The intended use for the 35lb Danforth is (in order of importance):

1. emergency - able to toss it overboard quickly to slow/stop headway in a harbor, around docks, etc.. God forbid I ever need it in this capacity though.

2. Alternative to CQR''s - As you noted the CQR may not be the anchor of choice in some bottoms. In that case I''d take everything forward, secure it to the sampson post

I think this is the main reason compelling me to stick with the 3/8" HT chain as that is the size that fits my windless. However, should I need to switch types I think I''d be better off simply swapping anchors at the existing tackle (e.g. unshackling CQR/shackling on Danforth).

3. Bahamian moor - hopefully self-explanatory.

4. A more portable kedging ''tool''.

In short, basically a manual backup.

You are spot on regarding the ''geometry'' of handling a stern anchor. It''s the precise reason I''m trying to avoid making (man)handling it such a physically demanding job that, emergencies aside, I''d tend not to use it at all even when I probably should. e.g. entertainment for others using the sheet winch if fine by me... I have to accomodate the weak & lazy in me

And indeed, it is bringing it back onboard without banging the hull/etc. to pieces that I''m thinking about as well . You are at least better off than me by having a stern roller. All I have is a boomkin to stand on to keep all that nasty abrasive chain and pointy ended metal from attacking the topsides.

Something you didn''t mention (but I''m sure you thought about it) is not to forget there is a lot of ''neutrally bouyant'' nylon rope just itching to get wrapped around your prop shaft
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