Is this enough anchor for my boat?

[Normanby]

My new-to-me 28' full keeler came with:

Anchor: Manson Supreme 25lb (11kg)
Chain: Galvanised, 65', 5/16th (20 metres, 8mm)
Rope: three strand 350', 5/8th (105metres, 16mm)

Obviously I'd like more anchors for different bottoms, but is the above a good start?

The boat weighed 7100lbs when new (3250 kg), so probably weighs about 7700 now (3500 kg).

[van demon]

Originally Posted by Normanby

My new-to-me 28' full keeler came with:

Anchor: Manson Supreme 25lb (11kg)
Chain: Galvanised, 65', 5/16th (20 metres, 8mm)
Rope: three strand 350', 5/8th (105metres, 16mm)

Obviously I'd like more anchors for different bottoms, but is the above a good start?

The boat weighed 7100lbs when new (3250 kg), so probably weighs about 7700 now (3500 kg).

have a look here mate

Manson Plough recommended sizing chart

[sabray]

http://manson-marine.co.nz/SitePages...RecomSizes.htm
Here is the supreme chart 25 lb seems like a good start

[Normanby]

Ah ha!
Thanks.

How about the rode? I checked it and the swivel and all looks okay with little wear (I don't think the PO anchored much, day sailed mostly).

How's the size of the rode? Thickness and length (fwoaar)?

Interestingly, the rode is marked with little tabs every metre, all the same. Useful only if you're counting as they go out, which is unlikely...

[Pete7]

Originally Posted by Normanby

Ah ha!
Thanks.

How about the rode? I checked it and the swivel and all looks okay with little wear (I don't think the PO anchored much, day sailed mostly).

Looks pretty good and to buy a yacht with a modern anchor the right size is a bonus.

Originally Posted by Normanby

How's the size of the rode? Thickness and length (fwoaar)?

Easily strong and long enough. With a small yacht weight is important so whilst more chain has an advantage there is a down side. Perhaps at some point add another 20m of chain but go with what you have for now.

Persnally I don't trust swivels so you might want to consider removing it. Have a read of this:

Connectors

Pete

[JonJo]

Originally Posted by Normanby

My new-to-me 28' full keeler came with:

Anchor: Manson Supreme 25lb (11kg)
Chain: Galvanised, 65', 5/16th (20 metres, 8mm)
Rope: three strand 350', 5/8th (105metres, 16mm)

Obviously I'd like more anchors for different bottoms, but is the above a good start?

The boat weighed 7100lbs when new (3250 kg), so probably weighs about 7700 now (3500 kg).

I think you will be more than fine

Depends where you are going to anchor but I'd, also, think to increase the amount of chain. How on earth do you cope with 105m of 3 strand 5/8th rope! You are unlikely to ever need it all, but I also have an aversion to cutting rope!.

I wonder how the chain is spliced to the rope.

I, also, do not find swivels necessary (and we are all chain) but with rope as part of the rode a swivel would not be necessary anyway.

I might think of a Fortress as a back up, light, stows well, immense holding for its weight and unbeatable in decent sand and mud (which is what most anchorages contain). Easy to deploy from a dinghy. Not sure of the size/model - go by their charts (and available off the shelf in a chandler near you!) If you are going east, to weed anchorages, you might want to consider a stockless - made in Adelaide (or thereabouts) - but heavy and largely useless elsewhere. If you are heading, way, north - buy the extra chain before you get to coral - it gobbles nylon rope overnight.

Relax and sleep well.

Jonathan

[noelex 77]

You are, just, within the recommended size range for both Manson Supreme and Rocna. Both tables are worth looking even if you are looking to buying the alternative anchor. The Rocna table is a little better as is considers displacement and the two anchors are so similar in performance that both tables are just as applicable. (But remember if you go smaller than recommended you forfeit the Rocna "replace if bent" warrantee.

Personally I am fan of the "bigger is better" approach, but it does depend on where you will be crusing. If Tasmania is on the agenda a bigger MS would be nice.

Have you got an anchor winch? Electric or manual?.
I cruised for many years in a boat without an anchor winch and 35lbs was my limit especially with an all chain rode when anchoring in deep water (say 15m). I am not particularly strong and many people manage bigger, but make sure you find your own personal limit, preferably on a bouncy wet foredeck in bad conditions if you don't have a winch.


The MS is one of the best anchors for handling different substrates so I would not bother look at multiple anchor designs. (Other than a lightweight Fortress or Gardian is a stern/kedge anchor) The only bottom that it and all other conventional anchors can struggle in is very bad weed. The weed in your part of the world is not particularly tough, but some spots in Tasmania may have enough to trouble the anchor especially in such a small size. (Small anchors have more weed problems than a bigger version of the same anchor). The only anchor that will do better is a specialist weed anchor like a fisherman's.

When using a swivel a few links of chain between it and the anchor to stop the side loads. Rode marks every 10m are often enough.

[Srah 1953]

In a recent reply to a query on Sail magazine, Don Casey recommended 1.5 lbs per foot of boot length, which comes out higher than any sizing chart I've seen.

[JonJo]

There was a thread on CF 'Manson Supreme in Weed' that you might find interesting to trawl though. I think the thread focussed on use of a Supreme at kangaroo island (and places with similar seabeds).

The manufacturer of the stockless, in Australia, is a company called 'Industrial Springs'. They are very common in SA and useful if you venture the other way to Deal or Kent. You would not need one at Wilson's Prom, Oberon nor Refuge.

Jonathan

[Cheechako]

all looks quite adequate to me...

[Normanby]

Originally Posted by noelex 77

You are, just, within the recommended size range for both Manson Supreme and Rocna. Both tables are worth looking even if you are looking to buying the alternative anchor. The Rocna table is a little better as is considers displacement and the two anchors are so similar in performance that both tables are just as applicable. (But remember if you go smaller than recommended you forfeit the Rocna "replace if bent" warrantee. Personally I am fan of the "bigger is better" approach, but it does depend on where you will be crusing. If Tasmania is on the agenda a bigger MS would be nice. Have you got an anchor winch? Electric or manual?. I cruised for many years in a boat without an anchor winch and 35lbs was my limit especially with an all chain rode when anchoring in deep water (say 15m). I am not particularly strong and many people manage bigger, but make sure you find your own personal limit, preferably on a bouncy wet foredeck in bad conditions if you don't have a winch. The MS is one of the best anchors for handling different substrates so I would not bother look at multiple anchor designs. (Other than a lightweight Fortress or Gardian is a stern/kedge anchor) The only bottom that it and all other conventional anchors can struggle in is very bad weed. The weed in your part of the world is not particularly tough, but some spots in Tasmania may have enough to trouble the anchor especially in such a small size. (Small anchors have more weed problems than a bigger version of the same anchor). The only anchor that will do better is a specialist weed anchor like a fisherman's. When using a swivel a few links of chain between it and the anchor to stop the side loads. Rode marks every 10m are often enough.

Thanks Noelex and others.

I feel good about this anchor now, and yes, i reckon i'll get myself a simple Fortress and line as a second. I see a lot of boats with the MS on the bow roller and a Fortress stowed near the cockpit, sound good to me.

I have no windlass yet. On my last boat i was able to use a sheet winch for the nylon, and by the time the chain was all the way back to the winch the anchor was off the bottom and i could move away, taking in the rest of the anchor as i was drifting or slowly motoring. As a soloist it was nice to be able to do much of the raising from the cockpit. I still dream of having a bow roller on the stern for the same reason.