Electronic charts are great and I use them, but some contain errors that are not on paper charts. Best always to use both, and do some checking on what is considered best for the area. A couple on a catamaran experienced a nasty grounding when proceding south out of Elizabeth harbour Exuma this past winter. The echart they were using (Maptech?) showed that they had lots of depth to get through a certain cut. They didn't. The paper "Explorer" brand charts had it plotted correctly, and are considered by most to be best for southern Bahamas. We had an echart experience on a boat I was on one night south of Comox, Vancouver Island. I forget exactly where we were, but it was at night and we were skirting the coast of some small island on our way to an anchorage when it suddenly started to shallow real quick. A hard 90 to port and we got away from whatever it was, but it was not on the (cmap) chart. It was a long time ago now and I can't remember if we ever found out what it was or not. Possibly the contour line was a bit smoother than it should have been. Those islands are underwater mountain tops and the depth can change really fast. -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of Gomez, Jorge K Sent: Thursday, July 25, 2013 1:38 PM To: 'cnc-list@cnc-list.com' Subject: Re: Stus-List iPads for Navigation & Data Usage
Navionics HD is excellent in Canada and the Caribeean and there is no need for any network connectivity as long as the IPad is equipped with gps. Highly recomended. You need to buy the nav upgrade and enhanced map upgrade to get full usability but those are only $4.99 ea. From: Andrew Burton [mailto:a.burton.sai...@gmail.com] Sent: Thursday, July 25, 2013 05:21 PM GMT Standard Time To: cnc-list@cnc-list.com <cnc-list@cnc-list.com> Subject: Re: Stus-List iPads for Navigation & Data Usage The iPad needs to have a cellar chip. The cellular data plan does not need to be activated and it works well offshore. I'm using iNavX. I don't know if they have a Canadian equivalent. For areas outside the US I use Navionics. Both work very well and it's been a couple of years since I actually placed the paper charts on the nav desk. Andy C&C 40 Peregrine On Thu, Jul 25, 2013 at 11:51 AM, Stevan Plavsa < stevanpla...@gmail.com <mailto:stevanpla...@gmail.com> > wrote: Hi All, Andrew mentioned he uses his iPad and charting software when anchoring. I wanted to know if one needed a data connection to use an iPad for navigation and what software is most recommended. Is it Navionics? I'm working with the understanding that the iPhone/iPad require a data connection for their GPS to work. I have a wifi/3g iPad with a SIM card and plan but there isn't a lot of data, it's for "emergencies". I wonder about keeping it on while cruising for navigation, if it's needed. I do have paper charts but want to use both electronic and paper. Thanks, Steve Suhana, C&C 32 Toronto _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com <http://www.cncphotoalbum.com> CnC-List@cnc-list.com <mailto:CnC-List@cnc-list.com> -- Andrew Burton 61 W Narragansett Ave Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ <http://sites.google.com/site/andrewburtonyachtservices/> phone +401 965 5260
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