Quick answer: Compute lift from airspeed and a lift-coefficient curve that peaks at the critical angle of attack and falls off beyond it, so high-AoA low-speed flight stalls and loses lift.

The plane floats around at impossibly low speeds and steep angles because lift never drops off. Modeling a realistic lift curve against angle of attack makes stalls happen when they should.

How to fix it

1. Compute angle of attack

Find the angle between the aircraft's velocity vector and its forward (chord) axis in the pitch plane. This AoA drives the lift coefficient.

2. Use a lift-coefficient curve

Map AoA to a lift coefficient that rises to a peak at the critical angle and then drops sharply, so exceeding it sheds lift and induces a stall.

3. Add stall behavior and recovery

When stalled, reduce lift and let the nose drop, add buffeting feedback, and require the player to lower AoA and build airspeed to recover, matching real aerodynamics.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every Unity error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

The bug you can't reproduce isn't gone — it's just invisible until you capture it from the player's device.