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sim/
sim/weather/
sim/weather/aircraft/
Weather data for the primary aircraft's immediate environment. Read-only. This should be expected to be slightly different from regional weather.
sim/weather/aircraft/altimeter_temperature_error
float
in feet
How much a correctly set barometric altimeter differs from the actual altitude due to non-standard temperature at the altitude the user plane is flying.
sim/weather/aircraft/barometer_current_pas
float
in pascals
Barometric pressure at the point the current flight is at.
sim/weather/aircraft/cloud_base_msl_m[3]
float
in meters
MSL >= 0. The base altitude for this cloud layer.
sim/weather/aircraft/cloud_coverage_percent[3]
float
in float
Cloud coverage per layer, range 0 - 1.
sim/weather/aircraft/cloud_tops_msl_m[3]
float
in meters
>= 0. The tops for this cloud layer.
sim/weather/aircraft/cloud_type[3]
float
in float
Blended cloud types per layer. 0 = Cirrus, 1 = Stratus, 2 = Cumulus, 3 = Cumulo-nimbus. Intermediate values are to be expected.
sim/weather/aircraft/dewpoint_deg_c[13]
float
in degreesC
The dew point at specified levels in the atmosphere.
sim/weather/aircraft/gravity_mss
float
in m/s^2
Acceleration of gravity for the current planet im the aircraft's location.
sim/weather/aircraft/hail_on_aircraft_ratio
float
as a ratio
[0..1] The amount of hail on the airplane windshield as a ratio from 0 to 1.
sim/weather/aircraft/precipitation_on_aircraft_ratio
float
as a ratio
[0..1] The amount of rain on the airplane windshield as a ratio from 0 to 1.
sim/weather/aircraft/qnh_pas
float
in pascal
QNH
sim/weather/aircraft/relative_humidity_sealevel_percent
float
in percent
Relative humidity at sea-level
sim/weather/aircraft/shear_direction_degt[13]
float
in degrees
[0 - 360]. The direction for a wind shear, per above.
sim/weather/aircraft/shear_speed_kts[13]
float
in >=
0. The gain from the shear in knots.
sim/weather/aircraft/snow_on_aircraft_ratio
float
as a ratio
[0..1] The amount of snow on the airplane windshield as a ratio from 0 to 1.
sim/weather/aircraft/speed_sound_ms
float
in m/s
Speed of sound in meters/second at the plane's location.
sim/weather/aircraft/temperature_ambient_deg_c
float
in degreesC
The air temperature outside the aircraft (at altitude).
sim/weather/aircraft/temperature_leadingedge_deg_c
float
in degreesC
The air temperature at the leading edge of the wings in degrees C.
sim/weather/aircraft/temperatures_aloft_deg_c[13]
float
in degreesC
Temperature and ISA temperature at pressure altitudes given in sim/weather/aircraft/atmosphere_alt_levels. If the surface is at a higher elevation, the ISA difference at wherever the surface is is assumed to extend all the way down to sea level.
sim/weather/aircraft/thermal_rate_ms
float
in m/s
>= 0 The climb rate for thermals.
sim/weather/aircraft/turbulence[13]
float
in float
[0 - 10] A turbulence factor, 0-10, the unit is just a scale.
sim/weather/aircraft/visibility_reported_sm
float
in statute_miles
>= 0. The reported visibility (e.g. what the METAR/weather window says).
sim/weather/aircraft/wave_amplitude
float
in meters
Amplitude of waves in the water (height of waves)
sim/weather/aircraft/wave_dir
float
in degrees
Direction of waves.
sim/weather/aircraft/wave_length
float
in meters
Length of a single wave in the water - not writable starting in v12
sim/weather/aircraft/wave_speed
float
in m/s
Speed of water waves - not writable starting in v12
sim/weather/aircraft/wind_altitude_msl_m[13]
float
in meters
>= 0. The center altitude of this layer of wind in MSL meters.
sim/weather/aircraft/wind_direction_degt[13]
float
in degrees
[0 - 360] The direction the wind is blowing from in degrees from true north clockwise.
sim/weather/aircraft/wind_now_direction_degt
float
in degrees
[0-359] The effective direction of the wind at the plane's location.
sim/weather/aircraft/wind_now_speed_msc
float
in m/s
>= 0. The effective speed of the wind at the plane's location.
sim/weather/aircraft/wind_now_x_msc
float
in m/s
Wind direction vector in OpenGL coordinates, X component.
sim/weather/aircraft/wind_now_y_msc
float
in m/s
Wind direction vector in OpenGL coordinates, Y component.
sim/weather/aircraft/wind_now_z_msc
float
in m/s
Wind direction vector in OpenGL coordinates, Z component.
sim/weather/aircraft/wind_speed_kts[13]
float
in >=
0. The wind speed in knots.