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Go Back   SailNet Community > General Interest > General Discussion (sailing related) > Anchors Away...
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Thread: Anchors Away... Reply to Thread
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Topic Review (Newest First)
07-12-2012 02:56 PM
LarryandSusanMacDonald
Re: Anchors Away...

We've anchored hundreds and hundreds of times and have learned through trial and error and by talking to others who have had more experience. Out take on it is HERE.

Hope this helps. It really works for us. And if you're new to boating, take a look around the rest of the site. We've learned a lot over the many years we've been cruising, and feel, because of the 'pay it forward' mentality of most cruisers, that we should share what we've learned.
07-11-2012 12:23 PM
tjvanginkel
Re: Anchors Away...

Congratulations on the start of great fun and adventures!
Everyone has different equipment so develops different ways of approaching the same issue. We have a handheld GPS, so when the anchor goes overboard we hit the MOB button to mark the spot. (The GPS has a proximity alarm system somewhere but its not easy to use and as others have mentioned too much scrolling through menus. The MOB button is easy) We keep the GPS in the Vberth at night and then if things feel like they are changing we can turn it on and check our position relative to the MOB waypoint.
There is no substitute for an eyes on check but sometimes you just need that little bit of reassurance without getting out of bed!
Have fun!
Tanya
07-11-2012 11:03 AM
saillife
Re: Anchors Away...

For depth markers on my three strand rope rode I use wire ties looped through one strand. black every 25 feet with a white one at 100 feet. Very cheap but effective.
07-11-2012 10:55 AM
johnnyquest37
Re: Anchors Away...

Anchoring: Minimum scope is 7:1 for overnight anchoring when using chain/rope rode. This is the ASA standard and believe (will have to check) both "Chapman's" and "Annapolis" use the same ratio. That is seven to one from the stem to the bottom, not seven times the water depth. I generally use 8:1 and if there is plenty of room in the anchorage, I just put all 200' of rode I have out.

We back down on the engine to set the anchor and to test the holding. If I am in slow reverse but not moving, then the anchor is set. We take azimuths to three objects ashore. You have to pick obejcts that will be visable at night, though. For example, water towers are good because they usually have lights on them. Trees are bad - can't see them in the dark. If you suspect you are dragging in the night, shoot an azimuth to these three objects again and if two of them have changed significantly, then you are dragging. Sometimes I will use my chartplotter's track function. I zoom in on the boat's location and with "tracking" on. Over time, the chartplotter will draw a nice circle around the anchor. If the track is showing the boat moving outside the swinging circle, then we are dragging. If you do find yourself dragging, the first thing do (if you have room) is to let out more scope.
07-11-2012 08:56 AM
msmith10
Re: Anchors Away...

If you don't have a copy, I'd highly recommend Chapman's "Piloting and Seamanship". While I don't see many people referring to it nowadays, when I was growing up it was the bible (and a lot more fun to read). Over my lifetime I've read it many times and still glean useful stuff from it. The chapter on anchoring is a good reference.
With a chain/rope rode my minimum scope is 5:1. In 15-20 knots I'd prefer 7:1 or more. As long as you're not in a crowded anchorage where you have to watch your swing radius, the only downside to more scope is the work in retrieval, which is a lot less than the work in scrambling to reset an anchor in the dark in a storm.
07-11-2012 04:42 AM
sailak
Re: Anchors Away...

I have the wife back down as I hold the anchor line in my hand (being careful not to fall overboard, get my hand pinched, kill anything defenseless, etc). You can feel the anchor sliding along the bottom and will know when it sets. As you back down harder you will feel if it drags.
07-10-2012 11:42 PM
Squidd
Re: Anchors Away...

18 lb Danforth, 30' 3/16" chain and then maybe 40-50 foot rode...(I thought it was further out)...Sand bottom, 17' water where we dropped anchor.

Definetly need more practice setting and sinking...

I did back down on the anchor after dropping it, but didn't feel a jerk or dead stop pull on rode...more of a back up and pull the rope tight but no "termination" point.. Wasn't really sure what I was expecting to feel...first time and all...
07-10-2012 11:26 PM
TropicCat
Re: Anchors Away...

4 to 1 scope should be OK to 15-20 knots of wind.

You didn't mention what kind of anchor you have or if you were anchoring in sand or a grassy bottom. As a rule, get into the practice of backing your anchor in after you set it.
07-10-2012 10:29 PM
KBuckley
Re: Anchors Away...

We use the tags in the anchor rode so we know we have enough scope (or occasionally know we don't...). Makes it nice and easy.

The time to set the anchor alarm is when we drop the anchor since we are going to circle around that spot as the tide comes and goes. To set my anchor alarm on the gps though requires too many menu selections and I am always busy picking the spot to drop the anchor and forget to do it until it is all over.
07-10-2012 10:13 PM
Lake Superior Sailor
Re: Anchors Away...

Good to see you had a great weekend!....Dale
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