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Why XP12 has the best ground physics for a flight sim ;-)

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Test scenario:

Airport: PANC, rwy 25R. Plane: default A330. Runway conditions: dry, wet, snowy, icy. Acceleration to 70 kts, reduce throttle to 0, set the parking brake.

Remark: I know, I haven't set the slats and flaps for takeoff, but that's irrelevant for this test.

 

Watch my YT-channel: https://www.youtube.com/@flyingcarpet1340/

Customer of X-Plane, Aerofly, Flightgear, MSFS.

One note about the friction of slippery runways in X-Plane:

We often hear the complaint that they are too slippery, and no pilot would ever use a runway like that.

It is a fact, however - and I have measured it - that the most slippery condition you can invoke in X-Plane is equivalent to "braking action = medium" in real world aviation terms. This coresponds to the RCC 3 as explained here:

https://skybrary.aero/articles/runway-condition-codes-rcc

It is also true that bigger airports in reality will endevour to keep the friction on their runways as good as possible, by mechanical (sweeping) and chemically treating their runways - something that is not implemented in X-Plane (yet).

Therefore pilots using "real weather" will have to contend with the conditions that result from meteorological parameters, which will make landing distance calculations more important. However, an airliner flown at normal approach speeds should be able to stop within 2000 meters (6,600 feet) of runway, even in the worst conditions, and even if not using any reverse thrust at all.

Cheers, Jan

 

  • Author
3 hours ago, Litjan said:

It is also true that bigger airports in reality will endevour to keep the friction on their runways as good as possible, by mechanical (sweeping) and chemically treating their runways - something that is not implemented in X-Plane (yet).

Therefore pilots using "real weather" will have to contend with the conditions that result from meteorological parameters, which will make landing distance calculations more important.

Still, if you ABSOLUTELY want to fly with real weather, there is always a workaround. Shortly before the destination airport, you can switch to manual weather. Now you can change the runway wetness as you like, the rest (clouds, winds, ...) remains as it was. It doesn't work if you are flying online with Vatsim or IVAO, but well ...

Watch my YT-channel: https://www.youtube.com/@flyingcarpet1340/

Customer of X-Plane, Aerofly, Flightgear, MSFS.

11 hours ago, Litjan said:

something that is not implemented in X-Plane (yet).

XP121.4Objects2.jpg.be787aaf5bd4f98a5a61

AutoATC Developer

Yes, unfortunately those vehicles are only static vehicles - they don´t go anywhere and they certainly do not sweep the runways...yet. 😉

 

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