# SimpleNavData This sample project is designed to show you some of the ways you can create **Navigation Data** for flights in the simulation. The sample does two things when built: - Removes ALL navigation data from the world (waypoints , terminal NDB, ILS, approaches, departures, etc...) - Adds in navigation data for the **Bordeaux Saucats Airport LFCS** (frequencies, departures, routes, etc... The sample is intended to be studied and understood so you can create your own packages with navigation data included. {{< callout context="caution" title="IMPORTANT!" icon="outline/alert-triangle" >}} The sample shows the navigation data being cleared for the **world** using the `` tag in the XML, outside of the `` tag. **This is not standard practice and should not be done by your own packages**. This has been done to illustrate how that tag works, and to make it easier/more obvious to see the new navigation data added at LFCS. See the section [Debugging Navigation Data Using <DeleteNavigation />](../../../content-configuration/environment/airports-and-facilities/airports-and-facilities/#note-on-navigation-data_debug) for more information. {{< /callout >}}     ### Loading And Building The Project In order to load and build the project in Microsoft Flight Simulator 2024, you must have previously enabled Developer Mode ([see here](../../../introduction/sdk-overview/) for more information). Once enabled, simply follow these steps:   - Use the **Open project...** command from the **File** menu. {{< image-center src="images/7_Samples_Tutorials/general_openproject.png" alt="Developer Mode Open Project" >}}   - Select the file `NavDataProject.xml` from the `SimpleNavData` sample project folder: {{< image-center src="images/7_Samples_Tutorials/Samples/Misc/SimpleNavData/navdata_1_open.png" alt="Load The SimpleNavData Project" >}}   - The **Project Editor** should open automatically and show you the project `mycompany-navdata` (if the Project Editor doesn't open, then you can open it from the Developer Mode **Tools** menu). You can right-click on the package and then select the **build and mount** option to build the package: {{< image-center src="images/7_Samples_Tutorials/Samples/Misc/SimpleNavData/navdata_3_build.png" alt="Building The NavData Project" >}}   - This will build a package from the files specified in your project. This package will be named `mycompany-navdata` and will be output in the **Packages** folder created in the same directory as `NavDataProject.xml`: {{< image-center src="images/7_Samples_Tutorials/Samples/Misc/SimpleNavData/navdata_4_package.png" alt="The NavData Package Location" >}}   Once the package has been built, you can see the results by going to the world in Free Flight. If you check the different airports and then their frequencies in the UI or in the EFB, you'll see that there are no more routes, frequencies, etc... {{< image-center src="images/7_Samples_Tutorials/Samples/Misc/SimpleNavData/navdata_5_noroutes.png" alt="No Routes For Flights In The World" >}}   Once you've checked that all navigation data has been removed from the world, you can then go to **Bordeaux Saucats Airport LFCS** and see that the custom navigation data from the package has been added. For example, frequencies: {{< image-center src="images/7_Samples_Tutorials/Samples/Misc/SimpleNavData/navdata_7_frequencies.png" alt="New Frequencies For LFCS In The World Map" >}}