Aircraft Performance Basics
A compact parabolic polar model for seeing where lift-to-drag ratio peaks, where drag is minimized, and how power changes with selected airspeed.
Maximum L/D
13.56
CL 0.678
Minimum drag
38.5 m/s
737 N drag
Selected L/D
12.94
CD 0.0385
Power required
34.8 kW
773 N drag
Drag and power required
Slow flight is induced-drag limited; fast flight is parasite-drag limited.
K
0.0544
Selected CL
0.498
Parasite share
65%
Induced share
35%
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.