|
Post by earnric on Feb 13, 2022 16:03:03 GMT
So I've been researching anchors for the last month. The youtube channel SV Panope is invaluable. He's tested almost every anchor you can imagine... sand, muddy sand, cobblestone bottom.... reset tests... veering tests... you name it he's tried it with a modern anchor. At the risk of starting a holy-war, I've decided to go with the Roca Vulcan. This is one of his "older test videos" so he doesn't show the comparison matrix of results at the end. I've captured the results here: My only question is -- For my 42' SO DS, should I get the 44lb or 55lb anchor? I'm leaning toward the over-sized 55lb Vulcan, but I need to measure to ensure it'll fit on the bow roller ... Are there any disadvantages to going a bit bigger/heaver on the anchor on my 42DS? Rick
|
|
|
Post by NZL50505 on Feb 13, 2022 20:19:43 GMT
The argument to oversize your anchor is weaker than it used to be as the new generation of ultra holding power designs give you more stickiness for the same weight.
If you are living aboard in an area routinely hammered by gales then probably still worth over-sizing.
But if more normal use, I’d stick to the recommended size. The two key reasons for this are:
1. Bigger anchors increase risk of hull damage during deployment
2. Bigger anchors - especially latest generation - can be quite hard to break out creating more load on your system each time. That’s obviously a nice thing if you’ve just weathered a big blow safely but you don’t want a heavy job every time you anchor for lunch.
|
|
|
Post by NZL50505 on Feb 13, 2022 20:23:36 GMT
P.S. I’d go Excel or Ultra btw! 😊
|
|
|
Post by Trevor on Feb 14, 2022 3:23:51 GMT
We have a 20 kg Rocna and we are very happy with it. It fits well in the anchor roller of our SO42DS.
Trevor
|
|
|
Post by earnric on Feb 14, 2022 3:37:43 GMT
P.S. I’d go Excel or Ultra btw! 😊 Haha! Thanks! Yea, the Excel seem to really perform well too. Thx for the perspective.
|
|
|
Post by earnric on Feb 14, 2022 3:39:49 GMT
We have a 20 kg Rocna and we are very happy with it. It fits well in the anchor roller of our SO42DS. Trevor Thx Trevor ... That's my baseline choice. I'll also keep my fortress as a second anchor and probably sell the lewmar delta. R
|
|
|
Post by jdl01 on Feb 15, 2022 17:57:08 GMT
Unlike the lewmar delta, the vulcan has a curved self launching stock. This will require a pretty substantial retaining system to keep the vulcan in place on your anchor roller when you are under way. We use a large snap shackle on doubled 5/16 low stretch braid for our 20 kg vulcan on our SO 379.
|
|
|
Post by earnric on Feb 16, 2022 0:11:25 GMT
Hey jdl01, do you have a photo? I'd be interested in seeing the setup to keep the anchor on the bow roller. Also, I need to construct a bridle. Do you suggest 5/16 nylon (stretchy)? How long? Rick
|
|
|
Post by jdl01 on Feb 17, 2022 18:52:00 GMT
Hello Rick, Unfortunately, I have no photo and the boat is under full winter wraps. I have placed a U shackle on the anchor stock 1/3 of the way along the upper edge. The snap shackle with the 5/16 line attaches to the U shackle. The other end of the line is attached to the pulpit cross brace, which is on the lower pulpit member just aft of the forestay. I fully tighten the rode, bringing the anchor all the way in and set the 5/16 line length to just snap shut on the U shackle. Then the windlass is eased to allow all the rode strain to transfer to the 5/16 line. Tying this off on the pulpit is a one time only event and the anchor travels happily in this position. To set the anchor, I retension the windlass, lean forward of the forestay and trip the snap shackle and we a then ready to drop the anchor.
|
|
|
Post by fakinx on Feb 19, 2022 15:00:29 GMT
Hello, Spade S120 for our SO 42DS. Holds like a devil... Fits on a roller perfectly. If the bottom is problematic we use rope attached to the anchor as a precaution if it needs to be tripped. Sleeping very well since we got it instead of delta. But it's more of a personal preference as it goes with all top modern anchors.
|
|
|
Post by MartyB on Feb 19, 2022 16:40:58 GMT
While I do not wish to get into the which sized anchor you should get.... i will to a point. Ask yourself what is the biggest wind you may be anchored in? For the OP, the 55 lb anchor will get him to around 80 knots, the 40 lb on to 60 knots. A 20-25 lb anchor to around 40 knots. If your never in winds about 40 knots, why put a double the sized anchor on the bow?
As far as anchor type, I have a 9lb fast set, and an actual 16.5 lb Bruce claw. At least where I am, I have never had issues setting or holding in the max winds 20 and 40 knots, for there sizes on my boat. Admitidly with a 30' 6500 lb boat, weight on the ends is a bigger deal than those with larger boats. Still too much weight on a bow can cause weather helm. Keep ALL of this in mind when choosing and sizing ones anchor setup.
Length of rode.....another sticky one. Just north of me in BC, it is not uncommon to have the bow anchor in 200-300' of water, with a stern tire to a rock or tree 50' away. SO 500-600' of rode is minimum in bow to have a minimum 2-1 in this situation. 150' as some recommend will not even set the anchor.
Know the soil type, depth you will be in before deciding on the set up too!
Marty
|
|
|
Post by earnric on Feb 22, 2022 1:59:55 GMT
Thanks all...
From what I've seen about the 44lb Vulcan I guess it should be great 99% of the time ... I don't plan on being anywhere during a hurricane, and if we're stuck in one, we'll be tied up to a mangrove or something like that.
Thanks again everyone! Good info.
Rick
|
|
Kai Rani
Junior Member
Posts: 18
Jeanneau Model: 42DS Mk1 2006
Yacht Name: Kai Rani
Home Port: Sydney
Country: Australia
|
Post by Kai Rani on Mar 1, 2022 1:00:33 GMT
I have just installed a 27kg ultra ( very shinny) on my 42 DS i had to move my anchor roller forward 150 mm so the retrieval does not hit the bow, the anchor is one size up on the ultra recommendation site i have already tested it at Port Stephens in a 25 to 30 knt NE in Shoal Bay . happy with the result, it bit and held very well Jeremy
|
|
|
Post by earnric on Mar 1, 2022 3:38:36 GMT
Thanks for the info...
I'm still going back and forth between the 44lb and 55lb Vulcan. According to SV Panope's testing, the 44lb holds like the dickens. He maxed out his winch at 5000lb of force and the 44lb didn't budge. It got top spot across all his holding, veering and resetting tests.
I'm leaning toward the 55lb tho... just for peace of mind.
Rick
|
|
Kai Rani
Junior Member
Posts: 18
Jeanneau Model: 42DS Mk1 2006
Yacht Name: Kai Rani
Home Port: Sydney
Country: Australia
|
Post by Kai Rani on Mar 1, 2022 4:26:17 GMT
HI Eric always as ive been told go one size up on the recomendation for the anchor weight. i went Ultra as it resets in its own length and its shinny haha
|
|
|
Post by earnric on Mar 1, 2022 14:42:15 GMT
Haha! Yea, I like those stainless anchors too. But my wallet doesn't!
Rick
|
|
|
Post by NZL50505 on Mar 1, 2022 20:56:05 GMT
Thanks for the info... I'm still going back and forth between the 44lb and 55lb Vulcan. According to SV Panope's testing, the 44lb holds like the dickens. He maxed out his winch at 5000lb of force and the 44lb didn't budge. It got top spot across all his holding, veering and resetting tests. I'm leaning toward the 55lb tho... just for peace of mind. Rick What size windlass do you have? Remember Jeanneau are naughty with their windlass installations - on my 2006 42DS it was obvious that they had fitted an under-sized windlass motor (850-900W motor) but replaced the gypsy with a larger one to make the windlass look bigger / more powerful (1000-1200W). My windlass was struggling to lift my anchor from deeper water so I replaced it with a 1400W which coped fine. So if you are thinking of over-sizing your anchor remember you will be increasing both the dead weight AND the breaking out loads… and remember that you might need to upgrade your windlass to match the anchor. This is because it might already be somewhat undersized for your existing anchor setup let alone a heavier one. Meaning your windlass might not cope with the increased loads and lets you down at the wrong moment - especially if it’s already working hard and has many years of use under its belt!
|
|
|
Post by earnric on Mar 2, 2022 2:44:42 GMT
Thanks @nzl50505... I'm not sure what size windlass I have on my 2010 42DS so i'll have to check this weekend. If it's undersized, it means an upgrade to the 55# Vulcan would cost a lot more than I'm anticipating.
Rick
|
|
|
Post by NZL50505 on Mar 2, 2022 9:12:24 GMT
So yours is 4yrs younger than mine was - so will be interesting to hear what motor size you discover you have.
|
|