Fuel ranges

Centre airport (ICAO)

Type an airport code to centre the circles there.

Step from previous centre

Each move leaves the circles you left behind dashed, with a leg line to the new centre.

Aircraft

Picking a type fills capacity, speeds and consumption with published cruise figures. Editing any of them switches to Custom.

Fuel capacity

Include 40 min reserve

Max cruise

gal/h

Optimal cruise

gal/h

Best endurance

gal/h

Speed unit

Show radius in

Click or drag the pin to move the centre. Each circle is the full one-way range for that regime — a true geodesic circle, so Web Mercator stretches it toward the poles.

Map layers

Mode

Glider Ranges Flight plan

Navaids

VOR DME / TACAN NDB

Tick a beacon type to load worldwide navaids (source: OurAirports). Click a beacon for its frequency.

Airports

Small Medium Large

Tick an airport size to load airports (source: OurAirports). Click one for runways & frequencies.

Waypoints

5-letter fixes

Tick to load worldwide RNAV waypoints (X-Plane GPL data, cycle 2012).

Saved state

Save the map view, route, glider setup and layer choices to a file — or load one back.

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For flight-simulator use only — not for real-world navigation.