I had a quick look at some of the anchor dragging apps mentioned here and the “Anchor Alarm” does exactly the same thing as any of the Garmin anchor alarms – sounds an alarm if you move more than X from the current position (at the time of setting the alarm).
However, the Drag Queen can do the same, but additionally, you can provide (manually) the initial position. This is not yet what Bill wanted (set a point on the map and draw a circle), but functionally, provides the same result (with a bit more complicated user interface). A warning, though: the Drag Queen use a lot of GPS cycles (in “high battery usage” mode); this may mean that you better have your smartphone connected to a charger or at least fully charged, before going to sleep. There is no easy way of telling (at least with the tools I have) how long would the battery last. But this depends heavily on the way how the application was written (my experience with tracking apps (recording a track) shows that two apps doing exactly the same (logging waypoints in a 10 s interval) can discharge battery at a very different rate (one lasting 8-10 h, the other just under half of that). Anchor Watch (free with ads or $4) is even more interesting, allowing to set the anchor position by bearing and distance (chain length + water depth) from the current boat position and to set the “drift radius” by sector (longer in some directions and shorter in others). Anyone willing to do the field test? Marek From: Jake Brodersen via CnC-List Sent: Wednesday, December 03, 2014 8:36 PM To: 'Tim Goodyear' ; cnc-list@cnc-list.com ; 'Burt Stratton' Subject: Re: Stus-List OMG! We're dragging! Tim, There’s an app called “Drag Queen” that does a pretty good job of keeping track of your anchoring location. Set it up when you drop the hook and it will keep track of your distance from the anchor and let you know if you drag. Jake Jake Brodersen “Midnight Mistress” C&C 35 Mk-III Hampton VA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Tim Goodyear via CnC-List Sent: Wednesday, December 03, 2014 12:30 PM To: Burt Stratton; cnc-list@cnc-list.com Subject: Re: Stus-List OMG! We're dragging! Bill, There is an IOS app, Boat Monitor that does this. It will also send email or SMS alerts (assuming you have one device on board / one with you ashore). I used it a couple of years ago when we were eating ashore and expecting a major wind shift in the anchorage. It helped me relax and enjoy my lunch. Tim Mojito C&C 35-3 Branford, CT (Currently looking for a Wednesday night ride in Cartagena, Colombia) -------------------------------------------------------------------------------- _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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