Re: Anchors

On Tue, 30 Oct 2007 12:37:52 -0800, Gordon <gazuum@xxxxxxxxxx> wrote:

Researching anchors and keep popping up testimonials on how
absolutely great the new Rocnas are! Always set the first time, never
drag in any bottom, yada, yada.
Then I realized why! They size them twice the size of other anchors!
My boat calls for a 15 kg Bruce for 60 knot winds.
A 35# CQR. (16 kg) and
A whopping 33 kg for Rocna!

So does this mean the Rocna design is so lousy it takes twice the
weight to work properly?

Gordon

Anchor weights for the conventual "yacht" anchor are really just a
number indicating size as the actual weight of the anchor has very
little effect on its holding power.

Weight certainly helps in setting an anchor but once the anchor is
"set", i.e., buried, the weight has only a minor effect on the holding
power.

The Rocnas that I have seen were made from much heavier plate then
other anchors and in addition the hoop at the back of the anchor
appears to be solid steel although its only function is to keep the
anchor in the correct position.

The Rocna anchors I have seen were typically on European yachts, the
Germans seem to particularly like them, and the owners all claimed
that they were the best anchors in the world. It is also my impression
that they are actually a European design although the Rocnas appear to
be manufactured in New Zealand.

Of course most people brag about their anchors but I doubt that you
will have any problems with the Rocna (although I don't use them
myself).

See aluminum anchors for comparison of weight to holding power.


Bruce-in-Bangkok
(Note:displayed e-mail
address is a spam trap)
.

Relevant Pages

  • Re: Anchors
    ... FWIW, if they included the aluminum Spade in their "weight vs performance" graph, Rocna would be a far distant second. ... My experience has been that, other than situations where sheer weight is the determining factor, the aluminum version performs just as well as the steel one, and I inadvertently tested it in conditions far outside of it's expected performance envelope over the years. ... Until I see the Rocna tested in a wide variety of bottoms, as has been the case in the anchors tested by Practical Sailor, it's on the "watch and see" list. ... NO anchor has been best in all their tests, but a few seem to always be in the running. ...
    (rec.boats.cruising)
  • Re: Anchors
    ... I have bought the Manson Supreme for my yacht and it is the same weight as recommended for the size of yacht as the CQR that I replaced. ... I was originally going to replace the CQR with a Delta when I discovered the Manson Supreme in the chandler's catalogue and did some research on it which convinced me that it would be a more effective anchor than the Delta. ... In Australia, I didn't find a dealer for the Rocna, and indeed only became aware of them after I had ordered my Manson. ... So does this mean the Rocna design is so lousy it takes twice the weight to work properly? ...
    (rec.boats.cruising)
  • Re: Ping Bob - more on anchors
    ... being even worse, I eventually went to a like, but heavier, CQR. ... I'm not sure I read this right Skip, the Rocna is definitely cheaper ... I had compared it to a Delta, the first "new" anchor I bought. ...
    (rec.boats.cruising)
  • Re: Ping Bob - more on anchors
    ... being even worse, I eventually went to a like, but heavier, CQR. ... I'm not sure I read this right Skip, the Rocna is definitely cheaper ... I had compared it to a Delta, the first "new" anchor I bought. ...
    (rec.boats.cruising)
  • Re: Anchors
    ... I may have missed other tests related to all type of bottoms. ... getting a Fisherman for rocky bottom and weed. ... Rocna instead of a Fishermananchorbut I do not know much about it ... The Rocna will work just as well as any other anchor in rock and weed, ...
    (rec.boats.cruising)