F1A · F1B · F1H · P-30 · Hand-launch gliders

Design your next free-flight wing.

Free browser tools for balsa aircraft builders — from airfoil selection to laser-ready ribs. No sign-up, nothing to install; your designs stay on your computer.

Open FF Wing Designer Explore the tools

Balsa free-flight wing structure with tissue covering on a drafting table

Tools

Isometric drawing of a polyhedral balsa wing

Live · v0.1

FF Wing Designer

Build a polyhedral wing from 1650+ airfoils, inspect its structure in 3D, nest ribs on balsa sheets, export DXF, and estimate lift, drag and sink.

Launch designer →

Overlaid airfoil outlines with pressure and polar curves

Live · v0.1

Foil Database

Search 1650+ airfoils, overlay up to eight, compare polars and pressure at free-flight Reynolds numbers, and download .dat, DXF or SVG.

Open database →

01Choose an airfoil1650+ sections from the UIUC database, or import your own .dat.

02Build the structurePanels, polyhedral, washout, spars, LE/TE stock, sheeting, holes and jig tabs.

03Export your ribsGrain-aligned nesting on your balsa sheet size, DXF for the laser cutter.