Last week we wrote about how often we used our Rocna anchor and relied on it. Maybe just as important is an anchor watch program or App that lets you know when the anchor is not holding.
When we anchor we set our position in the Android app “Anchor Pro” We tell it where the anchor is and how much chain we have out. It immediately starts to monitor our position relative to the anchor. If we move outside the radius we have defined, the batteries on the tablet run low or it loses GPS signal, it lets out a very loud alarm.
The app is very easy to use but loaded with clever options. Really useful is the ability to define only a segment of a circle as being “OK”. Here in the Caribbean the wind comes from the east so you can anchor “a little bit closer” to an object to your east and then input a larger radius to the west than to the east.
Also nice is that when you leave the boat with the tablet you can switch the app off and, on your return, tell it to use the old position. You can also switch on the “heatmap” view and see all the positions that have been logged. A nice tidy grouping (as shown here) suggests that you are holding well and can enjoy a run ashore.
A well set anchor, a good mattress and this app are our secrets to a good nights sleep.