I would be interested to learn how GA Flight planning tools work regarding the calculation of the necessary information for flight plans where you usually would use the manual charts (performance, endurance, range...) How do these platforms provide this info? Most of the info for old planes is from the 50,60s where no digital data has been provided and manufacturers don't give away these data usually. And data like performance, endurance etc is aircraft specific and necessary to do the right calculations when I do it manually.
My goal is to provide a platform to do it digitially. What do you think is the right approach to provide data like this to the platform.
When I start planning for a flight, charts in the manual are needed to plan properly (Landing and takeoff lengths, enroute information, endurance, range) This is mostly provided just as a chart and would be great to work digitally with.