Although the aeronautical data used in these products originates from suppliers within the real world aviation industry, and may seem up to date and accurate, the data has also been downsampled, merged and interpolated. Furthermore, the data is only made available in formats non-standard to the aviation industry. Therefore, the data must never be used for real-world flight navigation. It is dangerous and may also be unlawful. Navigraph will assume no responsibility for consequences arising from improper use of the data. The data distributed by Navigraph is for non-professional computer simulated flight only.