The Crosswind Calculator Program  is FREE. There are three simple steps to be carried out before you use the software.

• Read and agree to the End User License Agreement.
• Obtain the Activation Code via your e-mail address to activate the program.
• Download and install the Crosswind Demonstration Software on your mobile phone.

You can now download a fully working version of AviatorCalc instead of just downloading the free software. AviatorCalc will run thirty times before it will prompt you for an activation code which you can purchase from this site.

The Crosswind Demonstration program is a fully working copy of the Crosswind function in the full product. It also has a limited Heading and Groundspeed demonstration. This program can also be used to display the basic specifications of your mobile device.

You can install it on your mobile telephone in two ways:

• Simply download it into your mobile phone using your phone's web browser.
   

• Download the files top your home computer and install using your telephone manufacturer's application installer software.

You can see a demonstration of the software by selecting the Simulator from the menu on the left or clicking the button below.