
Function: Sailboat Racing Performance, GPS, Start timer
Rating: ****
Cost: $9.99
About a year ago I reviewed iRegatta, which is a tactical racing application for sailing. The app will work on either your iPhone or iPad, iOS 4.3 or later. Since then, the developers have added a few features worth talking about.
One of the most interesting is the integration of Polar diagrams that can be created in the iPolar app and then downloaded to iRegatta.
It you are a hard core sailor and want the most out of your yacht, iPolar and iRegatta will give you the tools to track and improve your performance.
The iPolar app is a great little tool that allows you to create polar diagrams for your yacht and then export them to various programs.
Basically, a polar diagram is the graphical diagram consisting of the theoretical maximum boat speeds at various true wind speeds and headings, along with the associated upwind and downwind VMGs (velocities made good).
Knowing your boats optimum points of sail with respect to the wind can give you an edge in a race or get your across oceans is a shorter amount of time.
If you have iRegatta on the same device it will show up on the list. Simply tap the iRegatta icon and it will open up the app and ask you to confirm the import.
In iRegatta, confirm the import and it will show you the imported files. Here the jib, spinnaker and asymmetrical spinnaker polars are shown as imported.
Next enter the wind speed and direction. Now that iRegatta knows this information it will let you know which end of the line is favored. The side of the line with the green shading is the favored side of the line to start on.
The dashed bar shows where you should be according to the time left on the countdown timer. I am way ahead of where I should be according to this.
The bar on the left side of the display is the Burn or Gain bar. If you are right on to hit the line the bar will be yellow. If you are early, as in this case, the bar will be red. If your are late to the line, it will be green.

Closest point of approach can be calculated for each target. Targets within 1 nautical mile will show in red. Tap the list icon in the bottom right to view a list of all target vessels.
All of this new features sound complicated, but after using them a few times they really work and are quite useful. Check out iPolar in combination with iRegatta to give you an edge against the competition.
~~~Sail On ~~~ /)
Mark
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