The default maps that display the first time you open FalconView are Tiros maps. They are simple maps that serve as a decent general-purpose background map. FalconView comes with Tiros World, 16 kilometer Tiros, 8 kilometer Tiros, and 4 kilometer Tiros. This expansion pack includes 2 kilometer Tiros, 1 kilometer Tiros, and 500 meter Tiros data for the entire world.