anchoring difficulty

the hangman

Cadet
Joined
Aug 27, 2003
Messages
24
I need a little advice with an unusual anchoring situation. Each fourth of July, we take our 17 foot bowrider to the local fireworks display. We anchor with hundreds of other boats. We have a problem dragging our anchor. The river is dredged to a 35' depth and has a current of maybe 2 to 4 knots. Because of the crowding of the boats - we are limited to a very short scope on the anchor line. <br />We have tried several types of anchors and have had limited success. The river bottom is muck/silt. I see alot of the other boats dragging their anchor and having to restart and reposition during the show. Does anyone have any experiance in these conditions?
 

glass from the past

Petty Officer 2nd Class
Joined
Feb 2, 2004
Messages
103
Re: anchoring difficulty

Hey Hangman,<br /><br />2 Questions for you, <br /><br />What kind of anchor are you using? danforth, mushroom, etc.<br /><br />How big is your boat(weight)?
 

the hangman

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Aug 27, 2003
Messages
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Re: anchoring difficulty

Glass:<br /> My main anchor is a four pound Danforth - it works very well during normal anchoring - in 10 feet of water with 100 feet of rope out. But it doesn't hold at all with a 1 to 1 scope. I have also tried a 12 pound mushroom and a 12 pound river (mushroom with 3 ears). The river anchor held the best. I may try an 18 pound river anchor next<br /> I think my boat weighs between 1000 and 1200 pounds.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,755
Re: anchoring difficulty

hangman, I have a similar sized boat, and have had the best luck with a river anchor, or a navy style anchor of #14. <br />
22335_0.jpg
<br /><br />I fish fast current, deep, and crowded rivers (the Fox, Wolf, and Wis) in the springtime, and have found that 2 anchors really work the best.<br /><br />The key with any of these "digging" anchors, is to let out more line, to get them on their side and then drag them a couple feet so they dig in.<br />You can then take up the extra line till you have a steep slope, but not quite vertical, maybe on a 20* angle. <br /><br />You can do this with 2 anchors, one bow and one stern, so that when one is starting to slide, the other takes over. 2 will also keep the stern from swinging around.<br /><br />Get there early, "set" 2 anchors, take a portapotty so you don't have to weigh anchor. :D
 

LubeDude

Admiral
Joined
Oct 8, 2003
Messages
6,945
Re: anchoring difficulty

It will also help if you put 2-3' of heavy chain on the anchor befor you tie the rope on. You can buy plastic coated chain that will not mare your boat or rust for a few years anyway.
 

BillP

Captain
Joined
Aug 10, 2002
Messages
3,290
Re: anchoring difficulty

A 4lb danforth, 18' boat, 4kt current and 1:1 scope? You need a lot bigger anchor or more scope. Do what Lubedude says with 6-8' of chain and put a 5lb chunk of lead where the chain meets the rope. Or just attach the chunk to the rope 6'-8' up from the anchor. 1:1 is straight up...3:1 might give you a little chance with the 4lb. I use 2.5lb & 4lb Danforths on my dinks. They don't have enough fluke weight to bury in anything but muck.
 

crazy charlie

Vice Admiral
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May 22, 2003
Messages
5,581
Re: anchoring difficulty

Usually not enough line is the problem.Lube dude is also correct,make sure there is enough chain and make sure it is heavy enough.Charlie
 

Dunaruna

Admiral
Joined
May 2, 2003
Messages
6,027
Re: anchoring difficulty

An alternative to plastic coated chain is to run the chain through old fire hose, local stations usually throw it out. It keeps the noise down as well which can only help with fishing. Aldo
 

Ralph 123

Captain
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Jun 24, 2003
Messages
3,983
Re: anchoring difficulty

The Danforth type anchors work best when you make the "pull" as horizontal as possible. In general, the more (heavy) chain you use the less scope you need.<br /><br />Here is what Bob Armstrong says in his Power Boating book,<br /><br />"In my experience, a single-fluke anchor holds better in sand than a double-fluke anchor, and while no anchor is great in grass or weed, the single-fluke type usually gets through and holds better."<br /><br />Danforths "become less efficient as bottom density lessens abd don't work as well in soft sand or near-liquid mud....kelp, grass or weeds can prevent them from taking hold... Danforth is still a prime choice for general use."
 

the hangman

Cadet
Joined
Aug 27, 2003
Messages
24
Re: anchoring difficulty

Thanks for all the input ...<br />Roscoe - I am talking about the Fox River ...<br />I do use a 5 foot chain at the anchor - I could add another 3 or 3 feet. As far as the scope angle, I am pretty much limited to 2:1 - about a 45 degree angle due to the close proximity of the other boats. You pull up behind an anchored boat, drop your anchor,and drift back 50 feet. If you were to let out 100 feet of line - you would swing to the right and left and bump into the boat next to you. It gets pretty crowded.<br />Jeff
 

Ralph 123

Captain
Joined
Jun 24, 2003
Messages
3,983
Re: anchoring difficulty

Jeff, see my edit above. Sounds like you may want to try a single-fluke (like a plow or CQR) and as heavy as you can handle with plenty of chain.
 

LubeDude

Admiral
Joined
Oct 8, 2003
Messages
6,945
Re: anchoring difficulty

Guess I was a bit off on the lenth of chain!! :eek: I guess more would be better!
 

18rabbit

Captain
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Nov 14, 2003
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3,202

kcole683

Petty Officer 2nd Class
Joined
Jan 10, 2004
Messages
159
Re: anchoring difficulty

The Richter anchor you (hammlfam) linked to is an interesting contraption.<br />I am suprised their website says to lower the anchor from the bow or stern though :eek: .<br />I hope nobody decides to anchor in open water overnight from the stern.<br />I know of 1 person who sunk his boat that way on Lake Erie.......not good advice to be giving.
 

18rabbit

Captain
Joined
Nov 14, 2003
Messages
3,202
Re: anchoring difficulty

The Richter looks like a grappling hook on steroids. Just like a g hook, all those long, fingery hooks will provide nothing of anchoring security in sand or mud. It will act like a rake…hopefully, eventually getting caught in veggies…not a secure anchoring medium. But I do like the long metal loop the rode attaches to. It should allow function with less scope when hooked on something solid. <br /><br />Soft bottom hold will come from an anchor designed to dig in. Bruce, bulwagga, CQR, danforth. Some get past vegetation on a soft bottom, some don’t and drag.<br /><br />Also, don’t overlook the use of two anchors, one off port and one off starboard. They don’t have to be the same type or size of anchor.
 

hammlfam

Seaman Apprentice
Joined
Jul 20, 2003
Messages
45
Re: anchoring difficulty

i'm on a resevoir where it is all mud/Sand bottom. I kept breaking loose last year at a place everyone goes to to anchor and party. I ask about 5 people around us why they weren't breaking loose and all five of them were friends and they said they bought the Richter anchor becuase they were having the same problems and another boater there recommended it. They seemed to have good grip in our sandy/muddy bottom. Just FYI. Of course, I cannot confirm this yet as I have not used mine.
 

18rabbit

Captain
Joined
Nov 14, 2003
Messages
3,202
Re: anchoring difficulty

Hammlfam – you nailed it! There is no advice better than what is working successfully for other boaters in the area you will be anchoring in.
 

Ripsnort

Petty Officer 3rd Class
Joined
Jan 20, 2004
Messages
95
Re: anchoring difficulty

Originally posted by 18rabbit:<br />The Richter looks like a grappling hook on steroids. Just like a g hook, all those long, fingery hooks will provide nothing of anchoring security in sand or mud. It will act like a rake…hopefully, eventually getting caught in veggies…not a secure anchoring medium. But I do like the long metal loop the rode attaches to. It should allow function with less scope when hooked on something solid. <br /><br />Soft bottom hold will come from an anchor designed to dig in. Bruce, bulwagga, CQR, danforth. Some get past vegetation on a soft bottom, some don’t and drag.<br /><br />Also, don’t overlook the use of two anchors, one off port and one off starboard. They don’t have to be the same type or size of anchor.
Pic:<br /><br />
richteranchtor_small.jpg
 

Capn Mike

Chief Petty Officer
Joined
Dec 10, 2001
Messages
561
Re: anchoring difficulty

We do a lot of anchoring in the Columbia River in hog lines for salmon fishing. Most smaller boats use a locally-made "rocking chair" design, and larger boats use a CQR or Danforth type. I use a rocker type as well as a Danforth type with 6' of chain on my 24' Striper. The current (1 to 8 mph) actually helps hold the anchor in place: there's no swinging around. But the one time I tried the Fortress (an expensive Danforth), it was frustrating: because of the current, the lightweight Fortress "sailed" before it ever hit bottom.<br />Whatever anchor you use, I've found it helpful, after the anchor touches bottom, to drift a couple of boat lengths, then tie off the rode temporarily to set the anchor in the right direction. Then let out more rode to whatever scope you prefer.<br />Hangman, in your peculiar situation, with that short scope, there's no substitute for weight, whatever the design. The navy-type anchor is the worst design ever for small boats, but in your situation, a big, heavy navy would be cheap and probably work.
 
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