AngelNav is a brand new app for marine navigation working via iPad and iPhone. Primarily it is a full chart plotter currently favouring raster charts, but it has many additional features including the unique ability to carry out traditional navigation directly on the screen.
The capacity to generate classical chart work is vitally important in the event of a GPS failure, but until now it has demanded pencil, plotting tools and paper charts. AngelNav encourages traditional techniques using an electronic chart on an iPad or iPhone screen instead of a paper chart. An estimated position can be plotted, position lines drawn from sighted bearings and fixes recorded. Course-to-steer vector diagrams are readily constructed.
AngelNav reads most types of raster chart including the UKHO derived subscription charts. Also charts from an increasing number of other countries such as the US, many of which can be downloaded free. It can easily create and read its own georeferenced satellite charts world-wide.
AngelNav can take its navigation data from the device's stand-alone GPS, the boat's NMEA over WiFi, and SignalK. It will also display AIS information on boats with their own WiFi system.
Annual subscriptions are available as in-app purchases for UKHO derived charts covering the whole of the UK and Ireland. To keep costs down, these are divided into 8 folios so that you only subscribe to the areas you want.
Tom Cunliffe writes:
"I believe this is a software program the small-craft world has been waiting for without realising it. I've long been a fan of raster charts and I've often wished I could plot on my electronic display in the same way I do on paper. Helping Bill Aylward solve this issue has been fun as well as highly satisfying. I'm confident we've cracked it, but it's early days. If you spot anything we've missed, don't hesitate to get in touch." Tom Cunliffe ~ sailor, author and MCA Yachtmaster Examiner
Click here for a description of raster charts
Click here to read the article in Sailing Today June 2023
Click here to see what sailors think about AngelNav