Sizing a Bruce anchor
- Thread starter djnward
- Start date
Whe we got our 22' we got a sinful deal on a Bruce 5kg(genuine Bruce, 15' 3/8 chain, 175' 1/2 rode $20 at the spring marine garage sale down in Seattle) and so put that on. It looked too small to me so we went ahead and got the 11kg and retired the 5kg to 2nd anchor status. It ives under the rear seat. I am much more comfortable with the larger anchor. It is a case of being a little overcautious rather than worrying about whether the smaller anchor will hold. I think many Cbrats however have and are happy with the smaller anchor. There!! hows that for coming down on both sides of the issue. 
I meant 7.5kg not 11kg for our main anchordjnward-
Some facts to consider:
Firstly, there are an awful lot of C-Dory 22 folks with 11 lbs Bruce type anchors, and we don't hear negative things about them. It appears to be the most popular size of the Bruce on 22's.
Secondly and conversely, the 11 lb Bruce is at the uppper end of it's range with the CD-22 (max. 23') (Although the C-Dory is lighter than a lot of boats for it's size, it does have quite a bit of windage.)
Thirdly, the anchor chain is of paramount importance in making any anchor work by using it's weight to bury the anchor and maintain a horizontal pull on it, rather than allow it to be lifted. Length of the rode (scope ratio) is also of paramount inportance. Don't short your anchor system with a diminutive bit of chain regardless of which anchor you select.
Fourthly, the Bruce works best in rocks and sand, but pulls through soft mud. It resets easily. Be sure people in your area have used it with good results, and ask about what size they use.
Fifthly and additionally, the exact anchor type and size one selects should be chosen in reference to the specific anchoring conditions anticipated. If you plan on anchoring overnight in areas where there are strong winds, storms, anticipated swings in the current, etc.----you may want to opt for the next larger size or so! If, on the other hand, you mostly anticipate anchoring during the day when fishing, the smaller anchor may be quite adequate.
Sixthly, if you think you won't be able to sleep at night or just plain be comfortable with the smaller sized anchor, you'll never be comfortable until you DO move up in size.
Now I know all of this at once sounds confusing, but these are all factors to consider and weigh against each other. And before you select that 22 lb anchor and 30 feet of chain (22 more lbs), be sure you're ready to hoist the 44 lbs back on board. I wouldn't want to do it by hand from 300 feet! Can you spell C-A-R-D-I-A-C.......A-R-R-E-S-T ?
:xlol
JOE.
Some facts to consider:
Firstly, there are an awful lot of C-Dory 22 folks with 11 lbs Bruce type anchors, and we don't hear negative things about them. It appears to be the most popular size of the Bruce on 22's.
Secondly and conversely, the 11 lb Bruce is at the uppper end of it's range with the CD-22 (max. 23') (Although the C-Dory is lighter than a lot of boats for it's size, it does have quite a bit of windage.)
Thirdly, the anchor chain is of paramount importance in making any anchor work by using it's weight to bury the anchor and maintain a horizontal pull on it, rather than allow it to be lifted. Length of the rode (scope ratio) is also of paramount inportance. Don't short your anchor system with a diminutive bit of chain regardless of which anchor you select.
Fourthly, the Bruce works best in rocks and sand, but pulls through soft mud. It resets easily. Be sure people in your area have used it with good results, and ask about what size they use.
Fifthly and additionally, the exact anchor type and size one selects should be chosen in reference to the specific anchoring conditions anticipated. If you plan on anchoring overnight in areas where there are strong winds, storms, anticipated swings in the current, etc.----you may want to opt for the next larger size or so! If, on the other hand, you mostly anticipate anchoring during the day when fishing, the smaller anchor may be quite adequate.
Sixthly, if you think you won't be able to sleep at night or just plain be comfortable with the smaller sized anchor, you'll never be comfortable until you DO move up in size.
Now I know all of this at once sounds confusing, but these are all factors to consider and weigh against each other. And before you select that 22 lb anchor and 30 feet of chain (22 more lbs), be sure you're ready to hoist the 44 lbs back on board. I wouldn't want to do it by hand from 300 feet! Can you spell C-A-R-D-I-A-C.......A-R-R-E-S-T ?
:xlol
JOE.
Ron on Meander
New member
22lb Bruce is what we use on our 25 CD. It sets well and has held in all conditions experienced so far. Including two nights swinging in Squirrel Cove Desolation sound with wind gusting up to about 35knts through the anchorage. If I remember correctly we had the 14lb Bruce on our previous 22 CD. I was happy with it.
My anchor wench has no problem pulling it and the 30ft of chain. She actually says she likes the exercise. :lol:
Ron
My anchor wench has no problem pulling it and the 30ft of chain. She actually says she likes the exercise. :lol:
Ron
I also have the 7.5 kg Bruce with 30 feet of chain and can't recall ever dragging an anchor even with a scope of 2:1 during the day fishing in 4 knots of current in the Cook Inlet (180 feet of water and almost all 400 feet of rode out). During overnights in 30 to 50 feet of water and gravel bottom with 150 feet out, I only recall having the chain come off the bottom and the boat jerk around one time when the wind was hitting 30-40 knots. The next size up is worth it. I use a Fortress (12 or 18)as a back up anchor since it breaks down so small, but have a 5 kg Bruce as the third backup in the garage.
And Joe, I use to pull it with a buoy, even then, yarding that much line into the boat along with chain is some work. I now have a windlass and aside from periodic excursions into the V-berth to move the rode pile around, 400 feet of 1/2 inch plus 30 feet of chain fits pretty well in my modified locker.
And Joe, I use to pull it with a buoy, even then, yarding that much line into the boat along with chain is some work. I now have a windlass and aside from periodic excursions into the V-berth to move the rode pile around, 400 feet of 1/2 inch plus 30 feet of chain fits pretty well in my modified locker.
Great! Thanks! I'll be getting a 16.5 pounder. I've seen the "Claw" and the "Plastimo" at West Marine for alot cheaper but I think to sleep better Ill just pay for the Bruce. Any thoughts?
Dick
........you know, I've looked all through the marine supply houses and I can't find "anchor wench" anywhere!?
Dick
........you know, I've looked all through the marine supply houses and I can't find "anchor wench" anywhere!?
Funny this would come up today. I just got home from buying a 7.5kg Bruce at West Marine tonight, and took advantage of their Holiday pricing, at least in my area. I was using a 5kg Bruce for the last 5 years, but last summer dragged on a 180 degree wind shift, in a crowded anchorage on a dark and stormy night. First time in 25 years using Bruce anchors I have dragged. I think the 5kg Bruce is a little undersized for the 22ft C-Dory and just feel better with the larger anchor. Thirty ft of chain helps also.
ps. Anyone want a good deal on a well used 5kg genuine Bruce Anchor?
Merry Christmas!
Dun (CTYankee)
ps. Anyone want a good deal on a well used 5kg genuine Bruce Anchor?
Merry Christmas!
Dun (CTYankee)
Chris Bulovsky
New member
DJNWARD- On my 22' I use a 16.5 bruce knock off. I use the factory bow roller with no problems to report as of yet.
I went with the bigger one because I applied the "if some is good more is better concept". Necessary???? Probably not. But as Sea Wolf pointed out you sleep better. He has sound logic and I respect his opinion.
I was simply amazed how well the Bruce style Anchor holds in sand! :thup :shock: Wow!
Honestly I don't anchor to much but the Burce does what it should when its dropped. :wink:
Chris Bulovsky
Washburn Wi
I went with the bigger one because I applied the "if some is good more is better concept". Necessary???? Probably not. But as Sea Wolf pointed out you sleep better. He has sound logic and I respect his opinion.
I was simply amazed how well the Bruce style Anchor holds in sand! :thup :shock: Wow!
Honestly I don't anchor to much but the Burce does what it should when its dropped. :wink:
Chris Bulovsky
Washburn Wi
NEW C-BRAT POLL:
WINCH:_________
OR
WENCH:__________
<boobie shot snipped by Da Prude>
VOTE FOR ONE (OR BOTH IF YOU CAN AFFORD IT)
SERIOUSLY, WE'VE NEVER DONE AN ANCHOR TYPE SURVEY, BUT IT WOULD BE PRETTY COMPLICATED BECAUSE OF THE DIFFERENT TYPES OF ANCHORS, THE DIFFERENT WEIGHTS, AND WHICH BOAT THEY'RE BEING USED ON. ALSO, WHICH ANCHOR YOU USE DEPENDS ON LOCAL CONDITIONS SO MUCH THAT A SURVEY MIGHT BE NOT THAT USEFUL.
Joe.
Edited by Da Nag...let's keep it PG 13
WINCH:_________
OR
WENCH:__________
<boobie shot snipped by Da Prude>
VOTE FOR ONE (OR BOTH IF YOU CAN AFFORD IT)
SERIOUSLY, WE'VE NEVER DONE AN ANCHOR TYPE SURVEY, BUT IT WOULD BE PRETTY COMPLICATED BECAUSE OF THE DIFFERENT TYPES OF ANCHORS, THE DIFFERENT WEIGHTS, AND WHICH BOAT THEY'RE BEING USED ON. ALSO, WHICH ANCHOR YOU USE DEPENDS ON LOCAL CONDITIONS SO MUCH THAT A SURVEY MIGHT BE NOT THAT USEFUL.
Joe.
Edited by Da Nag...let's keep it PG 13
A
Anonymous
Guest
Good morning to everyone in Dorydom, I am reading this thread with interest and can only offer small tidbits of opinion due to our limited experience with the Bruce.
Last season was our first to anchor ANYTHING, but through the tutelage received on this site, we purchased the 16.5 Bruce and 30 ft. of Stainless chain and coupled it with a 600ft. shot of 1/2 double braid. It has not drug nor caused any problems to date. I should also mention this is on a 25 ft'er. Yea, I know we did deviate from the advise to use 3 strand line but that was where I called on my commercial fishing buddies advise.
During the time spent researching this anchor thing I looked at the Rocna's which are guaranteed to set it one meter!! Their web site has some impressive video footage and in side by side test it appears to out perform my Bruce, the CQR, the Delta fast set etc. Great advertising for sure but the one question I kept coming back to was "if this thing sets so good and so deep how difficult will it be to break out?" They are also very expensive and don't have good dealer support anywhere within 1200 miles of us so we went Bruce.
Looking back I feel good with this decision and have come to realize there is more to this anchor thing than how well it does any ONE thing well.
P.S, Hey Joe, I thought I had the market on ballsiness, but you sure took the prize with that last poll you launched!
Mike on Huda Thunkit
Last season was our first to anchor ANYTHING, but through the tutelage received on this site, we purchased the 16.5 Bruce and 30 ft. of Stainless chain and coupled it with a 600ft. shot of 1/2 double braid. It has not drug nor caused any problems to date. I should also mention this is on a 25 ft'er. Yea, I know we did deviate from the advise to use 3 strand line but that was where I called on my commercial fishing buddies advise.
During the time spent researching this anchor thing I looked at the Rocna's which are guaranteed to set it one meter!! Their web site has some impressive video footage and in side by side test it appears to out perform my Bruce, the CQR, the Delta fast set etc. Great advertising for sure but the one question I kept coming back to was "if this thing sets so good and so deep how difficult will it be to break out?" They are also very expensive and don't have good dealer support anywhere within 1200 miles of us so we went Bruce.
Looking back I feel good with this decision and have come to realize there is more to this anchor thing than how well it does any ONE thing well.
P.S, Hey Joe, I thought I had the market on ballsiness, but you sure took the prize with that last poll you launched!
Mike on Huda Thunkit
Always go up one size more than recommended--Joe's post is excellent (as usual). I would add, also get a Guardia or Fortress for thoes times that the Bruce may not set in mud--it will also work as a stern anchor.
I have 300 feet of 3/8" double braid I have owned for about 40 years--and used it as anchor rodes, kedging, warping etc--The only issue with double braid is not as much stretch--but that is easily handled with a 30 foot pieces of 3 strand and a rolling hitch around the double braid to use as a snubber. The snubber will allow good chafing gear when necessary, and allow you to adjust where and how the boat rides.
I have 300 feet of 3/8" double braid I have owned for about 40 years--and used it as anchor rodes, kedging, warping etc--The only issue with double braid is not as much stretch--but that is easily handled with a 30 foot pieces of 3 strand and a rolling hitch around the double braid to use as a snubber. The snubber will allow good chafing gear when necessary, and allow you to adjust where and how the boat rides.