The chart

Time-height soaring charts, rebuilt from each model run and published as plain JSON. Pick a launch and a model below. Advisory only — this is a model's opinion, not a clearance to fly.

LaunchModelCompare all models

Shaded by local stability (red = unstable, gray = isothermal, blue = inverted). Dashed = boundary layer top. Dotted = cloud base. Solid = usable lift top. Marks at each level show wind direction and speed — each tick is roughly 10 km/h.

The chart

How the models compare