This tool allows you to precisely calculate an aircraft's takeoff and landing performance. Currently available aircraft are the DR400 120, 125, and 180. Other aircraft can be added if you submit your aircraft's performance tables (as a text file, not an image).
Calculations are either interpolated (within the table ranges) or extrapolated (outside the table ranges).
A weighting factor is added based on the pilot's skill level (experienced or beginner).