I want to create a flight planning software for GA. Just as a prototype for the time being. The performance data and info about the planes should be stored in various databases.
When I go through flight manuals like the CESSNA 150, I get a lot of tables which I could convert into a database, but where do I get data which created these charts e.g. the range profiles?
Is this data available somewhere? Or are there databases available to be used?