Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 19-07-2013, 20:03   #1
Registered User
 
oblivionboyj's Avatar

Join Date: Jul 2013
Location: Coastal Connecticut
Boat: Westsail 32
Posts: 115
Anchor Weight

I've been reading a lot about holding power and anchor types.
Could you guys tell me the weight of your anchor and size of your boat?

The anchor on my boat is a fluke.
I am not 100% sure but I believe it's 25lbs.
My boat is 29 feet.
I'm also not yet sure of how many feet the chain or rope currently on.
I plan to measure next time I go to the boat, but just trying to gauge is what I have is sufficient.
oblivionboyj is offline   Reply With Quote
Old 19-07-2013, 20:17   #2
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 12,673
(...oh no, not another anchor thread!)

Heavy is good. I like to take the manufacturer's recommended size and then use the next size up.

My primary is a 20kg Bruce on 3/8" chain...both oversized for my boat...so I sleep well at night.
belizesailor is offline   Reply With Quote
Old 19-07-2013, 20:28   #3
Registered User

Join Date: Apr 2013
Location: Holland, Michigan
Boat: HATTERAS 50c, 55'aol
Posts: 50
Re: Anchor weight

I have a Danforth anchor with fifteen feet of 3/8 chain and 250 ft of 5/8 rope...(I carry another 250ft rope if needed) I was in 25 mph winds and the anchor held well... Anchoring depends not only the weight of the anchor but the type; the length and size of chain and the length and size of rope.. and especially the make up of the bottom........ sand; mud; rock; weeds; coral, etc. Many carry more than one type anchor depending on certain conditions. My Danforth was used on a sandy bottom with good holding power.
captseamus is offline   Reply With Quote
Old 19-07-2013, 20:38   #4
Registered User
 
sabray's Avatar

Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,168
Probably okay on the chesapeake if you have some chain like 50 feet. Technique will be important. 25 pond Danforth not set and the rhode tangled about the flukes is just like having a 25 lb brick at the end if the line. Maybe a 35 lb spade as a primary and you would be covered fir all if the bay
sabray is offline   Reply With Quote
Old 19-07-2013, 20:39   #5
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,393
Re: Anchor weight

Design and surface area matters more than weight. I have an aluminum Fortress which works quite well in the SF Bays mostly sand and mud bottom.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 19-07-2013, 20:55   #6
Registered User
 
oblivionboyj's Avatar

Join Date: Jul 2013
Location: Coastal Connecticut
Boat: Westsail 32
Posts: 115
How about using a dual anchor setup?
Like maybe the anchor I have working in tandem with a 33lb claw style anchor.
oblivionboyj is offline   Reply With Quote
Old 19-07-2013, 21:06   #7
Registered User
 
sabray's Avatar

Join Date: Aug 2008
Location: Wash DC
Boat: PETERSON 44
Posts: 3,168
Usually nit a good idea. Maybe both if set way apart on seperate rhodes and its going to be a nasty blow.
sabray is offline   Reply With Quote
Old 19-07-2013, 21:24   #8
Registered User

Join Date: Jun 2010
Location: Sailing the Caribbean
Boat: Switch 51
Posts: 1,520
Re: Anchor weight

Without knowing where you are and how you plan to sail, or the size of your anchor and length of chain, this thread isn't going very far. FWIW, we've got an anchor approx. 2x our length in ft and lbs and all chain rode.
SVNeko is offline   Reply With Quote
Old 19-07-2013, 21:34   #9
Registered User
 
oblivionboyj's Avatar

Join Date: Jul 2013
Location: Coastal Connecticut
Boat: Westsail 32
Posts: 115
Quote:
Originally Posted by sabray View Post
Usually nit a good idea. Maybe both if set way apart on seperate rhodes and its going to be a nasty blow.
I wasn't thinking of using them simultaneously on a regular basis (storms being excepted).
Just having a second option for different conditions.
oblivionboyj is offline   Reply With Quote
Old 19-07-2013, 21:35   #10
Registered User
 
rebel heart's Avatar

Join Date: Oct 2005
Posts: 6,190
Images: 3
Re: Anchor weight

60lb manson supreme, 300' of chain. 36' Hans Christian.

I sleep like a baby.
rebel heart is offline   Reply With Quote
Old 19-07-2013, 21:50   #11
Moderator
 
roverhi's Avatar

Join Date: Aug 2005
Location: Kona, Hawaii, Carlsbad, CA
Boat: 1969 Pearson 35 #108 & 1976 Sabre 28
Posts: 7,408
Send a message via Yahoo to roverhi
Re: Anchor weight

A 20# HT Danforth with about 20' of 5/16" chain and 1/2" rope rode should be fine for anchoring in the Chesapeake. The mud bottoms in the Chesapeake are ideal for Danforth Pattern anchors and you can pick them up for next to nothing all over the place. Their weak point is they don't reset well in hard bottoms if the direction of pull changes significantly. Not a big issue in the Chesapeake mud but a factor in other areas with harder bottoms.

If you are going farther afield would think about one of the modern inverted plow anchors like the Manson Supreme of about 25# with more chain. The additional chain would depend on your cruising grounds. Heading south, would want all chain. Other areas and depending on how long you are going to be hanging on the hook, might go with a 100'. If weight is a concern and you want all chain, 1/4" G40 chain would be strong enough. For most instances, 30' to 50' would be adequate, just be careful of chafe on a rope rode.
__________________
Peter O.
'Ae'a, Pearson 35
'Ms American Pie', Sabre 28 Mark II
roverhi is offline   Reply With Quote
Old 19-07-2013, 22:49   #12
Registered User
 
Stu Jackson's Avatar

Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 8,673
Re: Anchor weight

what we have doesn't matter. As suggested, where you sail and what conditions you expect will be necssary for you to design your anchor SYSTEM.

Try this:

Anchor System Sizing Tables (Reply #6) Ground Tackle & Anchor System Sizing TABLES & SwivelsGround Tackle & Anchor System Sizing TABLES & Swivels
__________________
Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
Stu Jackson is online now   Reply With Quote
Old 20-07-2013, 08:03   #13
Registered User
 
oblivionboyj's Avatar

Join Date: Jul 2013
Location: Coastal Connecticut
Boat: Westsail 32
Posts: 115
Quote:
Originally Posted by roverhi View Post
A 20# HT Danforth with about 20' of 5/16" chain and 1/2" rope rode should be fine for anchoring in the Chesapeake. The mud bottoms in the Chesapeake are ideal for Danforth Pattern anchors and you can pick them up for next to nothing all over the place. Their weak point is they don't reset well in hard bottoms if the direction of pull changes significantly. Not a big issue in the Chesapeake mud but a factor in other areas with harder bottoms.

If you are going farther afield would think about one of the modern inverted plow anchors like the Manson Supreme of about 25# with more chain. The additional chain would depend on your cruising grounds. Heading south, would want all chain. Other areas and depending on how long you are going to be hanging on the hook, might go with a 100'. If weight is a concern and you want all chain, 1/4" G40 chain would be strong enough. For most instances, 30' to 50' would be adequate, just be careful of chafe on a rope rode.
I am in the Chesapeake, and you've more or less described what I believe I have (though I think my anchor is a little heavier).

I think I'll plan on getting a second anchor style for differing conditions and going further afield.
I know that a 44lb Bruce/claw type is very affordable, and I believe I'd go with an all chain rode on that rig.

Thanks
oblivionboyj is offline   Reply With Quote
Old 20-07-2013, 08:04   #14
Registered User
 
oblivionboyj's Avatar

Join Date: Jul 2013
Location: Coastal Connecticut
Boat: Westsail 32
Posts: 115
Quote:
Originally Posted by Stu Jackson View Post
what we have doesn't matter. As suggested, where you sail and what conditions you expect will be necssary for you to design your anchor SYSTEM.

Try this:

Anchor System Sizing Tables (Reply #6) Ground Tackle & Anchor System Sizing TABLES & SwivelsGround Tackle & Anchor System Sizing TABLES & Swivels
Thanks for the resource!
oblivionboyj is offline   Reply With Quote
Old 20-07-2013, 08:23   #15
Moderator
 
JPA Cate's Avatar

Join Date: Nov 2011
Location: aboard, cruising in Australia
Boat: Sayer 46' Solent rig sloop
Posts: 21,262
Re: Anchor weight

ObliviionBoyJ,

It may be helpful to you to read up on the failure modes for Danforth style anchors, in previous threads. They do have some limitations, but are super for some uses. We used a 20 lb. HT Danforth on a 30 ft. sloop in San Francisco Bay, with not much chain on it and all rope rode, which did us for a while. We had 40 and 44 lb. anchors on our 36 foot boat; and now we have a 60 lb. Manson Supreme on our 46 foot boat, which weighs on the order of 13 tons.

I think a 44 lb. anchor, may be overkill, but you should do what makes you comfortable. But do give up on the using two anchors all the time idea, it's a hassle to handle them, and unnecessary in most conditions.

Ann
__________________
Who scorns the calm has forgotten the storm.
JPA Cate is offline   Reply With Quote
Reply

Tags
anchor

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Advertise Here


All times are GMT -7. The time now is 20:49.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.