See turbulence
before you fly through it.

A lightweight Windows app reads your simulator through SimConnect, FSUIPC, or XPUIPC on MSFS, X-Plane, P3D, or FSX. You sign in once; there's nothing else to configure.

While you fly, it streams a compact reading roughly every five seconds: vertical g-load, vertical speed, bank and pitch, altitude, heading, airspeed, position, and your aircraft type. That stream is the entire raw material of the network: real motion from a real flight, never a forecast.

Turbulence is rapidly fluctuating vertical acceleration, so we measure exactly that: the standard deviation of vertical g over a ~30-second rolling window, the same statistical basis ICAO and airline turbulence systems use. Not the single biggest jolt, which any input can cause; how rough the air is across the whole window.

• Each g-value is bank-corrected (1 / cos(bank) removed) so a steep turn never reads as turbulence.
• The bar to count as turbulence widens during climb, descent and approach, where thrust, trim and gear add motion that isn't weather, and stays tight in cruise.
• Every reading must be backed by at least six high-rate samples; a throttled, one-sample-a-minute session is discarded as smooth rather than published as a false spike.

Roughness maps to the standard light / moderate / severe scale pilots already use. Reference thresholds (vertical-g standard deviation, after correction) are shown. We publish them on purpose.

The output is a normalized 0 to 1 index aligned to this scale, a faithful proxy, not a physical EDR measurement (see #6 below).

The same pocket of air throws a Cessna around far more than a 737. So we normalize each report toward an airliner baseline by aircraft class, so reports stay comparable on one map. We only damp sensitive airframes toward the baseline; we never amplify heavier ones, which would just magnify autopilot jitter.

Empirically tuned from network data, not first principles, and refined as the dataset grows.

Each reading is placed on a hexagonal grid (about 2 nm per cell). Same-severity neighbours merge into the continuous ribbon that follows each route instead of scattered dots. A cell's colour reflects its most recent qualifying pass; report counts and altitudes accumulate so you can see how well-supported it is. The live map shows the last 30 minutes by default and rewinds up to 48 hours.

We'd rather you trust a smaller claim completely than a bigger one halfway: