Field notes
The Airfoil Explorer Blog
Short, practical writing on how wings actually work — airfoil geometry, lift and drag, Reynolds number, and how to read the charts in the simulator. Written to be useful whether you're a student, a hobby builder, or just curious.
Latest posts
Understanding NACA 4-Digit Airfoils: What the Numbers Mean
2412, 0012, 4415 — the NACA 4-digit code isn't random. Each digit describes a real piece of the wing's shape. Here's how to read any 4-digit airfoil at a glance, and why those numbers change how a wing flies.
Read the article →More articles are on the way — lift & drag, Reynolds number, and reading polar charts.