Tools

Calculators to design and set up F3K gliders. Free to use; an account lets you save your projects.

Optiservo

Sizes the servo → flap linkage (servo arm, control horn, pushrod) to get the most resolution out of your servo. EdgeTX export and share link.

Save your projects with an account.

Open Optiservo

Soarfoil

Analyzes and compares airfoils (XFOIL, NeuralFoil, Eppler), designs the 3D wing panel by panel and computes the best flap settings for each flight phase.

Polars, glider performance, PDF report.

Open Soarfoil