Avalon Router Offshore


Where can I find a real nautical chart on the system ?

Avalon Offshore is now also a plotting software. You will find about 900 public raster charts in the Cartography menu. You can also load your private raster charts in the device to be used offline. Avalon has a also GPX interface to export the computed route into the main plotting softwares ( OpenCPN, Navionics, …)

I have set up my arrival point behind a cape (or in a bay)  and Avalon does not find a suitable route. Why ?

You need to enter a waypoint to help Avalon. Avalon works like a GPS. When you arrival point is behind a cape, you need first to head towards the cape and then to the arrival point.

It is the same with Avalon, you need to add a waypoint at the cape. Avalon will then calculate 2 (or more) route segments: from your current position to the waypoint and then from the waypoint to the arrival point.

I am sailing in the channel where coastal currents are very strong, but the system does not provide them.

The coastal currents are provided for the zone Iberia, Biscay Ireland as a pay-in option for both the Coastal and the Offshore version.

I cannot find my boat in the database of polars.

We have added many boats in the last days and will be pleased to add yours too. Just fill in a polar request form on the main page and we will create a new boat entry in our database.

There is another option: you can also create your own polar file (using the “.pol format”), download it to your android device. Then you can open the polar file with Avalon.

I have defined waypoint(s) but Avalon does not find any route.

This can happen when waypoints are too close to other waypoints, starting point or arrival point. When this is the case, Avalon will consider that one or several points are already validated, will jump over the (already validated) waypoint’s) and try to calculate a route to the next wayypoint.

In the latest releases of Avalon, a check is made and a warning displayed when this is the case. It prevents the route to be calculated before a correction is made.

There are 2 ways to solve that problem: Either you move the waypoints or you decrease the waypoint size in the “compute route” settings.

What is the meaning of the colors on the route points ?

The colors indicates:

  • Pink: Port tack
  • Cyan: Starboard tack
  • Motorboat: Engine is on

(Assumes marker toggle in on and enough zoom on the map)

I cannot load my own navigational maps in the device.

The loading process needs to be done online. Once loaded, the maps are available permanently offline. The main steps are:

  1. Send your map(s) to your gmail account.
  2. Open your email on the device. Click on “save” to store the map (do not click on “save to drive”)
  3. Open Avalon offshore and go to the Nautical Charts menu
  4. Load private charts
  5. Select the chart to install
  6. Allow for 1 or 2 minutes for the chart to be processed and installed on the device
  7. Now the chart is availble for use in Avalon without any connection

I have purchased the Advanced Routing option but I cannot calculate routes above 72 hours. Why ?

This is because you have to specify a longer “Travel Time” in the settings. In the offshore version, this parameter is defaulted to 72 hours. You can go up to 180 hours. This parameter is used by the system to download only necessary winds and save network data transfer. 


16 thoughts on “Q&A’s

    1. admin Post author

      Yes we have signed a licence agreement to integrate Admiralty charts into Avalon. We are starting with UK, Croatia, Spain and Portugal.
      We have also added the mega quilted charts from the NOAA. Those are free. Their quality and precision and really great. We will use the same technology to integrate UKHO charts.


    1. admin Post author

      Not yet but I can add it.
      Please note that this polar will only be available within Avalon.
      Once you have confirmed that you are an Avalon Offshore user, I will calculate and add this polar.

      1. Andreas Steffen

        Hi Phil, i’m a Avalon offshore User V3.0.1. My Premium ends at 2018/04/28. I’ll use it first time in a few days in a race.
        And how can i add more than 1 waypoint?
        Thank you! A

        1. admin Post author

          Hi Andreas,

          I will calculate and add the First 47.7 tomorrow so that you have it for the race.
          Please feel free to send us a picture of your boat if you want that we illustrate our polar database with it.

          Do you need the racing option for the race ? It is free in 2017 and will help you manage the start. If yes, there is a doc on how to get access to the racing version here: http://www.avalon-routing.com/new/documents/users-guide/

          To add a second waypoint (and a third, a fourth, etc, etc), just tap on the blue line between the start and the first waypoint or the first waypoint and the arrival.
          You can create as many as you need with different parameters on each of them.

          I let you know when the 47.7 is ready.

          Good regatta,

          1. Andreas Steffen

            ..sounds great Phil.
            I got this waypoints and i created an Account with my mail adress. Do you need my Id-nr as well?

            And i’ll send a picture of my 47.7 to the devt mail, maybe it’s ok..

            Many Thanks!!

          2. admin Post author

            I got the picture… very nice boat… thanks
            To validate you on the racing option, I need the id that you created when you connected to Avalon Cloud.

  1. Andreas

    Hi Phil, thank you for the 47.7 polar, looks very good….

    But the App makes trouble. If i load a saved route or use an old route, the app freezes in the computing window. And i have to delete the App and Start again!? Do you have an idea?

    Regards. Andreas

    1. admin Post author

      This can happen when you use routes that have been saved with an older version of Avalon, as saved route parameters have evolved over time.
      Please make sure that you are always using the latest Avalon version (now 3.0.1) and that should ensure consistency between saved routes.
      Another suggestion is to save your routes (calculated or navigation) on our server using the Avalon Cloud facility. This can also be use to share routes between tablets or even between friends.

  2. Christian

    Hello Phil, do you have the polar files of an RM 1200/Fora marine? I am thinking of starting with Avalon …

    1. admin Post author

      Hi Christian,

      You will get much better results if you calculate the vpp by yourself using our Avalon VPP system as they will be customized to your boat setup.
      Please see the tab VPP on this site. There is also a video tutorial.

      However, il you prefer, we can calculate and add to our library a standard VPP file for the RM 1270


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.