LSGG Geneva runways and takeoff performance

Runways at LSGG

Geneva has one runway, so every departure and arrival uses 04/22, towards 046° or 226° true depending on the wind. With no second runway there is no crosswind alternative: on a day with strong wind across the field, the crosswind limit of your aircraft decides whether you can go.

Displaced thresholds: 04 330 m. A displaced threshold shortens the landing distance from that end, not the takeoff run.

Example takeoff performance

Flap setting, assumed temperature (FLEX) and V1/VR/V2 in knots for an A320ceo at 70 t and a 737-800 at 72 t, from the start of each runway of at least 1,800 m. Conditions are a standard day so runway length and airport elevation are what change: ISA temperature at the runway elevation, QNH 1013, calm wind, dry, no obstacles.

Runway length shows in the numbers: from 22 (3,900 m) the A320 example uses CONF 1+F with an assumed temperature of 58 °C, while 04 (3,900 m) needs CONF 1+F and 57 °C, so less thrust reduction.

At 1,411 ft the air is thinner than at sea level, even with the standard-day temperature down to 12.2 °C. On 04 the A320 example takes CONF 1+F and 57 °C; the same 3,900 m runway at sea level would allow CONF 1+F and 61 °C. That gap is the thrust reduction the elevation takes away.

Near its maximum takeoff weight, at 77 t, the A320 example gets CONF 2 with an assumed temperature of 47 °C from each runway end. Runway length does not limit a full A320 here on a standard day; heat, a tailwind or a wet runway would change that.

The A320 V2 values include improved climb: with a long runway and a high assumed temperature, V2 is raised above its minimum so the one-engine climb gradient still holds. That is why V2 runs higher on the longer runways.

The 737-800 assumed temperature is at its FCOM maximum (marked max) from each runway end in the table, so at 72 t the runway is not what limits it.

An illustration for flight simulation, not for real-world operations. Your own numbers depend on weight, weather, runway condition, intersection and obstacles; SkyNexus computes them from your SimBrief plan and the live METAR. See the A320 performance calculator and the 737-800 performance calculator for how it works.

Nearby airports

• LIMC Milan Malpensa115 NM
• LSZH Zurich124 NM
• LFMN Nice162 NM
• LFPO Paris Orly213 NM

All airports

LSGG questions

How long is the longest runway at LSGG?

Runway 04/22 at Geneva is 3,900 m (12,795 ft) long and 50 m wide, surfaced in concrete.

What is the elevation of Geneva?

Geneva International Airport sits at 1,411 ft above sea level. Elevation lowers air density, which raises true airspeed at a given V-speed and lengthens the takeoff run, so it matters for performance.

Which flap setting does an A320 use for takeoff at LSGG?

In our reference example (70 t, ISA, calm wind, dry runway, full length) the A320 uses CONF 1+F here. On a real day the answer moves with weight, temperature, wind and the runway condition; SkyNexus works it out from your SimBrief flight plan and the live METAR.

Which runway at LSGG limits a heavy A320 takeoff?

Near its maximum takeoff weight, at 77 t, the A320 example gets CONF 2 with an assumed temperature of 47 °C from each runway end. Runway length does not limit a full A320 here on a standard day; heat, a tailwind or a wet runway would change that.