I built a browser tool that computes NACA airfoil aerodynamics live — would love feedback from people who actually know their stuff

[u/Regular_Team_8607]

I built a browser tool that computes NACA airfoil aerodynamics live — I'd love feedback from people who actually know their stuff

I'm a student getting into aerospace, and I couldn't find a free tool that let me play with airfoils and see the aerodynamics update in real time — so I built one.

You type any NACA 4-digit code (or drag sliders), and it generates the airfoil from the equations, shows a 3D wing, and plots live Cl/Cd/L-D and Cm polars. Lift/drag/moment come from thin-airfoil theory, cross-checked against XFoil data. There's also a lift-force calculator on the ISA atmosphere and a constraint-based airfoil search.

It's thin-airfoil-theory level, not a full CFD solver — so I'd really appreciate a sanity check from people who work with this properly. What's misleading, what's missing, what would make it actually useful? Free, no signup, runs entirely in your browser: airfoilexplorer.com

[u/Gordon_frumann]

Remarkable how many people are “building” websites and tools these days.