Tommy, The defining factor is the location of the anchor. If it is 10 feet under the surface and the rode is 50 feet long, then you have 5:1. Fred Tug 44 ---------------------------------------- From: "circumnavigate06" <circumnavigate06@bellsouth.net> Sent: Tuesday, July 19, 2011 11:01 PM To: great-loop@lists.trawlering.com Subject: SPAM-HIGH: GL: anchoring question Anchoring in the 1000 Islands can prove to be a bit perplexing. You can be 30 feet from shore and in 160 feet of water. To find 30 feet of water depth might cause you to be less than a boats length from shore. Two days ago, I anchored in Gananaque, Canada and in an unusual patch, found an area of 8 to 10 feet that covered half a football field. I anchored in 10 feet of water, layed out 50+ feet of chain, for a short trip into town by dinghy. My thinking was that a 5:1 scope should be fine given the near windless day and zero percent chance for rain/wind. When I returned however, I noticed that the boat had turned and that it was now in 53' of depth. Was my scope still 5:1 or did it change to 1:1? What is the defining factor for making this determination? Tommy ________________

Joseph C. Pica 411 Walnut Street, #8227 Green Cove Springs, Florida 32043 Ph 301-904-9122 M/V "Carolyn Ann" GH N-37 MTOA# 3813 AGLCA# 5485 (Gold Looper) CarolynAnn-N37.blogspot.com Joseph.pica@gmail.com Snip:"...The defining factor is the location of the anchor. If it is 10 feet under the surface and the rode is 50 feet long, then you have 5:1...." Fred is correct except he left out the height above the water of the rode attachment point. For example, if the rode is attached to boat at the bow cleat which is 5' above the water then the scope has to be calculated using 15'. Using your scenario in 10' of water depth the rode attach to a boat point 5' above the water (=15' depth) to get a 4 to 1 scope would require 90' of rode. As you see it is very important to include the extra height. Enjoy Thousand Islands they are a great visit. Joe "Carolyn Ann" GH N-37 Currently in Lyons on the Erie...does Normal Rockwell live here?

Not quite so! You also have to add the distance from the anchor roller on the bow to the distance to the water to figure scope. Ten feet of water and five feet from anchor roller to water and 50 feet of rode gives you a scope of 3.3333! That's not enough for even a "lunch"hook! Mac Macdonald AGLCA & USPS Now Boatless Oklahoma City > From: fred@tug44.org > To: great-loop@lists.trawlering.com > Date: Tue, 19 Jul 2011 20:18:01 -0700 > Subject: GL: anchoring question > > Tommy, > > The defining factor is the location of the anchor. If it is 10 feet > under the surface and the rode is 50 feet long, then you have 5:1. > > Fred > Tug 44 > > ---------------------------------------- > > From: "circumnavigate06" <circumnavigate06@bellsouth.net> > Sent: Tuesday, July 19, 2011 11:01 PM > To: great-loop@lists.trawlering.com > Subject: SPAM-HIGH: GL: anchoring question > > Anchoring in the 1000 Islands can prove to be a bit perplexing. You can be > 30 > feet from shore and in 160 feet of water. To find 30 feet of water depth > might > cause you to be less than a boats length from shore. Two days ago, I > anchored > in Gananaque, Canada and in an unusual patch, found an area of 8 to 10 feet > that > covered half a football field. I anchored in 10 feet of water, layed out > 50+ > feet of chain, for a short trip into town by dinghy. My thinking was that > a > 5:1 scope should be fine given the near windless day and zero percent > chance for > rain/wind. When I returned however, I noticed that the boat had turned > and > that it was now in 53' of depth. > > Was my scope still 5:1 or did it change to 1:1? What is the defining > factor for > making this determination? > > Tommy > ________________ > _______________________________________________ > http://lists.trawlering.com/mailman/listinfo/great-loop_lists.trawlering.com > > To modify your Great-Loop subscription options (change email address, > unsubscribe, etc.) go to: http://lists.trawlering.com/mailman/options/great-loop_lists.trawlering.com