Point A is the first grid position (corner). The start edge runs from A along the edge bearing (or towards point B). Rows then unfold to the left or right of that edge.
Look up the runway and set the grid direction (and optionally point A) from it. Headings are true (geographic), the same as the edge bearing.
Get a free key in your openaip.net account (API clients). It is stored only on this phone.
Forward = in take-off direction. Negative values go backwards / left.
Runway data © OpenStreetMap contributors (ODbL) / openAIP. Always verify against the real runway markings – the data may be inaccurate.
Tap any grid marker on the map to navigate to it. The arrow uses the phone compass when enabled; otherwise it points relative to north (top of the map).
The share link encodes the full grid setup – open it on another phone to get the same grid.