What to do if anchor drags?

[StuM]

Originally Posted by moseriw

Hmm, did you know that the CQR was invented by the Royal Marine as dragging anchor at river Thames??

Sir Geoffrey Ingram Taylor would have been surprised to hear that

[Alan Mighty]

Originally Posted by StuM

Sir Geoffrey Ingram Taylor would have been surprised to hear that

Ai! It's an easy way to tell whom you should trust on CF and who peddles fake news.

See (attached) GITaylor CQR patent US1974933.pdf, about 291 KB.

[hd002e]

Originally Posted by Alan Mighty

Ai! It's an easy way to tell whom you should trust on CF and who peddles fake news.



See (attached) GITaylor CQR patent US1974933.pdf, about 291 KB.

Very interesting reading, thank you!

[hd002e]

Originally Posted by boatman61

With your anchor as well set as you say raising and reanchoring is to my mind the wrong thing to do.. all it achieves is another few hours of raised stress hoping its bedded in again at the new location.

I would only do it if I had a spot to move to that offered more shelter from the wind, in the lee of a cliff or something where the main force is above me.

Stick it out, Predict Wind has the strong wind moving W and going down to 15kts in your area.

I have been in the same spot for four days now and don’t plan on moving. Here, I know I can withstand 50+ gusts.

[boatman61]

Originally Posted by hd002e

I have been in the same spot for four days now and don’t plan on moving. Here, I know I can withstand 50+ gusts.

[Mike OReilly]

Originally Posted by hd002e

I have been in the same spot for four days now and don’t plan on moving. Here, I know I can withstand 50+ gusts.

Unless you’re facing a significantly rising wind forecast, or major wind shifts, I’d stay put. Just keep an eye on chafe and other linkages.

[StuM]

Originally Posted by Alan Mighty

Ai! It's an easy way to tell whom you should trust on CF and who peddles fake news.

See (attached) GITaylor CQR patent US1974933.pdf, about 291 KB.

Interesting trivia: He originally called it the "Secure Anchor" but the UK Patent Office wouldn't let him patent a "common word", so he came up with the phonetic "CQR"
The supposed "Coastal Quick Release Anchor" and "Clyde Quick Release Anchor" are just folk etymology backronyms

[Arthurwg]

Funny, I'm old enough to remember when the CQR was considered the best thing in the world, sent from God to save our souls. These days everyone says it's crap. I never had a problem with mine, but 25 lbs is just too small for anything other than a lunch hook. CQRs start at 35 lbs and work their way up.

Every boat should have at least two main anchors and a smaller stern anchor.

And Don Street says that any serious causing boat should carry five (5) anchors.

[Stu Jackson]

Originally Posted by hd002e

Your laplink story scared me until I read the last part.

Where do you look up the wind ratings for anchor sizes?

I got the rating from the Rocna website. I have no idea if that kind of information is available anywhere for cqrs.


Anybody know?


Here's what I did:


Anchor System Sizing Tables (Reply #6) & Swivels Ground Tackle & Anchor System Sizing TABLES & Swivels

[Cpt Mark]

Originally Posted by hd002e

Anchor head buries under normal conditions but I never had strong winds like this. I have about 100 pounds of chain lying on the seabed so I am hoping that is keeping the chain horizontal. I jever had the anchor drag but tonight I fear it may (may be irrational). I am just not used to seeing 40kts at anchor.

Your anchor is in the bottom in this wind. Chain is in water. I've done emergency deployment's when the poop hit the fan and my CQR's always caught and held even without proper setting and scope.

If you start dragging you'll need to pick up and reset.

[wingless]

Originally Posted by wingless

The expected result is that the strong wind acting against the boat has driven the anchor well into the seabed, making dragging unlikely.

Under normal conditions does the anchor get fully buried, along with some of the chain rode? If so, then it is very unlikely that the anchor will drag. Instead it should just push deeper into the Earth's crust, towards the mantle.

My Fortress anchor works that way, just driving deeper and deeper, pulling more and more chain underground.

Originally Posted by hd002e

Anchor head buries under normal conditions but I never had strong winds like this. I have about 100 pounds of chain lying on the seabed so I am hoping that is keeping the chain horizontal. I jever had the anchor drag but tonight I fear it may (may be irrational). I am just not used to seeing 40kts at anchor.

Originally Posted by hd002e

Yesterday morning I dove on the anchor and that also gave me some confidence: the rode/chain splice is hovering just above the seabed, beyond that I can see about 30’ of chain and the rest 120’ or so feet is buried deep into the sand. The anchor? No way to find where that is. I took that as a good sign.

Originally Posted by Cpt Mark

Your anchor is in the bottom in this wind. Chain is in water. I've done emergency deployment's when the poop hit the fan and my CQR's always caught and held even without proper setting and scope.

If you start dragging you'll need to pick up and reset.

The OP has already stated that anchor and the first 120' of chain rode are fully buried into the seabed.

[Mike OReilly]

Originally Posted by Arthurwg

Funny, I'm old enough to remember when the CQR was considered the best thing in the world, sent from God to save our souls. These days everyone says it's crap. ….

I’ve never heard anyone say CQRs are crap. They’re just not as good as the newer style anchors.

[Stu Jackson]

Originally Posted by Mike OReilly

I’ve never heard anyone say CQRs are crap. They’re just not as good as the newer style anchors.

Quite correct, Mike.


And, on a weight-for-weight basis is also important to note. Primarily because of the area of the part that holds:


Why NEW GEN Anchors are Better:

Anchors & TEST Results of New Generation Anchors EXCELLENT & Important

[wedivebc]

Originally Posted by boatman61

. but personally with wind coming of the land I would stay put.

Why is that? Comfort or safety?

[Don C L]

Originally Posted by hd002e

I have been in the same spot for four days now and don’t plan on moving. Here, I know I can withstand 50+ gusts.

Very smart! How's the chafe? Getting yer sleep?