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sim/
sim/flightmodel/
sim/flightmodel/parts/
sim/flightmodel/parts/Q_centroid_MULT[224]
float in unspecified units
v6.60.0+
73x4 centroid is TOTALLY DIFFERENT FOR EACH BLADE on helos and gyros! Dimension is 224.
sim/flightmodel/parts/rudd2_cont_def[56]
float in degrees
v8.0.0+
56 [WING] different for each part since def may be positive on top vstab and neg on the bottom one.... ON THE SAME PLANE AT THE SAME TIME!
sim/flightmodel/parts/rudd_cont_def[56]
float in degrees
v6.60.0+
73 [WING] different for each part since def may be positive on top vstab and neg on the bottom one.... ON THE SAME PLANE AT THE SAME TIME!
sim/flightmodel/parts/stalled[56]
float in unspecified units
v6.60.0 - v11.5.0
73 [WING]
sim/flightmodel/parts/strut_vrt_def_veh[10]
float in meters
v12.0.0+
[GEAR] upward deflection of the Nth gear, not including tire deformation
sim/flightmodel/parts/tire_drag_dis[10]
float in unspecified units
v6.60.0+
73
sim/flightmodel/parts/tire_locked[73]
float in unspecified units
v6.60.0 - v7.30.0
73
sim/flightmodel/parts/tire_prop_rot[10]
float in unspecified units
v6.60.0+
73
sim/flightmodel/parts/tire_speed_now[10]
float in unspecified units
v6.60.0+
73
sim/flightmodel/parts/tire_speed_term[10]
float in unspecified units
v6.60.0+
73
sim/flightmodel/parts/tire_steer_act[10]
float in degrees
v8.20.0+
Steering command actually enacted by the gear, degrees positive right. Writable in 1030. Override via override_wheel_steer
sim/flightmodel/parts/tire_steer_cmd[10]
float in degrees
v8.20.0+
Steering command being sent to this gear, degrees positive right. This takes into account steering algorithms for big planes like 747, but does not free castoring and springiness. Writable in 1030. Override via override_wheel_steer
sim/flightmodel/parts/tire_vrt_def_veh[10]
float in meters
v8.20.0+
[GEAR] Amount the Nth gear is deflected upwards due to vehicle weight on struts.
sim/flightmodel/parts/tire_vrt_frc_veh[10]
float in unspecified units
v8.20.0+
73
sim/flightmodel/parts/tire_x_no_deflection[10]
float in meters
v7.60.0+
[GEAR] x location of the Nth gear's wheel relative to the CG, airplane coordinates. This doesn't take into account strut compression. Writable in v8/9, read-only in v10.
sim/flightmodel/parts/tire_y_no_deflection[10]
float in meters
v7.60.0+
[GEAR] y location of the Nth gear's wheel relative to the CG, airplane coordinates. This doesn't take into account strut compression. Writable in v8/9, read-only in v10.
sim/flightmodel/parts/tire_z_no_deflection[10]
float in meters
v7.60.0+
[GEAR] z location of the Nth gear's wheel relative to the CG, airplane coordinates. This doesn't take into account strut compression. Writable in v8/9, read-only in v10.
sim/flightmodel/parts/v_el[2240]
float in unspecified units
v6.60.0+
73x10x4 speed is DIFFERENT FOR EACH BLADE! Dimension is 2240.
sim/flightmodel/parts/wash_grndeffect[56]
float in unspecified units
v8.20.0+
56 [WING]
sim/flightmodel/position/
sim/flightmodel/position/alpha
float in degrees
v6.60.0+
The pitch relative to the flown path (angle of attack)
sim/flightmodel/position/beta
float in degrees
v6.60.0+
The heading relative to the flown path (yaw)
sim/flightmodel/position/elevation
double in meters
v6.60.0+
The elevation above MSL of the aircraft
sim/flightmodel/position/equivalent_airspeed
float in keas
v12.0.0+
Air speed - equivalent airspeed - this takes compressibility into account
sim/flightmodel/position/groundspeed
float in m/s
v6.60.0+
The ground speed of the aircraft
sim/flightmodel/position/hpath
float in degrees
v6.60.0+
The heading the aircraft actually flies. (hpath+beta=psi)
sim/flightmodel/position/indicated_airspeed
float in kias
v6.60.0+
Air speed indicated - this takes into account air density and wind direction
sim/flightmodel/position/indicated_airspeed2
float in kias
v8.10.0+
Air speed indicated - this takes into account air density and wind direction
sim/flightmodel/position/L
float in newton_meters
v6.60.0+
The angular momentum of the aircraft (relative to flight axis)
sim/flightmodel/position/latitude
double in degrees
v6.60.0+
The latitude of the aircraft
sim/flightmodel/position/lat_ref
float in degrees
v6.60.0+
The latitude of the point 0,0,0 in OpenGL coordinates (Writing NOT recommended!!)
sim/flightmodel/position/local_ax
float in mtr/sec2
v6.60.0+
The acceleration in local OGL coordinates
sim/flightmodel/position/local_ay
float in mtr/sec2
v6.60.0+
The acceleration in local OGL coordinates
sim/flightmodel/position/local_az
float in mtr/sec2
v6.60.0+
The acceleration in local OGL coordinates
sim/flightmodel/position/local_vx
float in m/s
v6.60.0+
The velocity in local OGL coordinates
sim/flightmodel/position/local_vy
float in m/s
v6.60.0+
The velocity in local OGL coordinates
sim/flightmodel/position/local_vz
float in m/s
v6.60.0+
The velocity in local OGL coordinates
sim/flightmodel/position/local_x
double in meters
v6.60.0+
The location of the plane in OpenGL coordinates
sim/flightmodel/position/local_y
double in meters
v6.60.0+
The location of the plane in OpenGL coordinates
sim/flightmodel/position/local_z
double in meters
v6.60.0+
The location of the plane in OpenGL coordinates
sim/flightmodel/position/longitude
double in degrees
v6.60.0+
The longitude of the aircraft
sim/flightmodel/position/lon_ref
float in degrees
v6.60.0+
The longitude of the point 0,0,0 in OpenGL coordinates.
sim/flightmodel/position/M
float in newton_meters
v6.60.0+
The angular momentum of the aircraft (relative to flight axis).
sim/flightmodel/position/magnetic_variation
float in degrees
v6.60.0+
The local magnetic variation
sim/flightmodel/position/mag_psi
float in degrees
v10.30.0+
The real magnetic heading of the aircraft - the old magpsi dataref was FUBAR
sim/flightmodel/position/magpsi
float in degrees
v6.60.0+
DO NOT USE THIS
sim/flightmodel/position/N
float in newton_meters
v6.60.0+
The angular momentum of the aircraft (relative to flight axis)
sim/flightmodel/position/P
float in deg/sec
v6.60.0+
The roll rotation rates (relative to the flight)
sim/flightmodel/position/P_dot
float in deg/sec2
v6.60.0+
The roll angular acceleration (relative to the flight)
sim/flightmodel/position/phi
float in degrees
v6.60.0+
The roll of the aircraft in degrees - OpenGL coordinates
sim/flightmodel/position/Prad
float in rad/sec
v6.60.0+
The roll rotation rates (relative to the flight)
sim/flightmodel/position/psi
float in degrees
v6.60.0+
The true heading of the aircraft in degrees from the Z axis - OpenGL coordinates
sim/flightmodel/position/q[4]
float in quaternion
v6.60.0+
A quaternion representing the rotation from local OpenGL coordinates to the aircraft's coordinates.
sim/flightmodel/position/Q
float in deg/sec
v6.60.0+
The pitch rotation rates (relative to the flight)
sim/flightmodel/position/Q_dot
float in deg/sec2
v6.60.0+
The pitch angular acceleration (relative to the flight)
sim/flightmodel/position/Qrad
float in rad/sec
v6.60.0+
The pitch rotation rates (relative to the flight)
sim/flightmodel/position/R
float in deg/sec
v6.60.0+
The yaw rotation rates (relative to the flight)
sim/flightmodel/position/R_dot
float in deg/sec2
v6.60.0+
The yaw angular acceleration rates (relative to the flight)
sim/flightmodel/position/Rrad
float in rad/sec
v6.60.0+
The yaw rotation rates (relative to the flight)
sim/flightmodel/position/theta
float in degrees
v6.60.0+
The pitch relative to the plane normal to the Y axis in degrees - OpenGL coordinates
sim/flightmodel/position/true_airspeed
float in m/s
v6.60.0+
Air speed true - this does not take into account air density at altitude!
sim/flightmodel/position/true_phi
float in degrees
v10.30.0+
The roll of the aircraft relative to the earth precisely below the aircraft
sim/flightmodel/position/true_psi
float in degrees
v10.30.0+
The heading of the aircraft relative to the earth precisely below the aircraft - true degrees north, always
sim/flightmodel/position/true_theta
float in degrees
v10.30.0+
The pitch of the aircraft relative to the earth precisely below the aircraft
sim/flightmodel/position/vh_ind
float in meters/second
v6.60.0+
VVI (vertical velocity in meters per second)
sim/flightmodel/position/vh_ind_fpm
float in fpm
v7.40.0+
VVI (vertical velocity in feet per minute)
sim/flightmodel/position/vh_ind_fpm2
float in fpm
v8.10.0+
VVI (vertical velocity in feet per minute)
sim/flightmodel/position/vpath
float in degrees
v6.60.0+
The pitch the aircraft actually flies. (vpath+alpha=theta)
sim/flightmodel/position/y_agl
float in meters
v6.60.0+
AGL
sim/flightmodel/transmissions/
sim/flightmodel/transmissions/xmsn_press
float in unspecified units
v8.50.0+
Transmission pressure
sim/flightmodel/transmissions/xmsn_temp
float in unspecified units
v8.50.0+
Transmission temperature
sim/flightmodel/weight/
sim/flightmodel/weight/m_fixed
float in kgs
v6.60.0+
Payload Weight, sum of all stations if airplane has stations
sim/flightmodel/weight/m_fuel[9]
float in kgs
v9.0.0+
Fuel Tank Weight - for 9 tanks
sim/flightmodel/weight/m_fuel1
float in kgs
v6.60.0+
Fuel Tank 1 Weight
sim/flightmodel/weight/m_fuel2
float in kgs
v6.60.0+
Fuel Tank 2 Weight
sim/flightmodel/weight/m_fuel3
float in kgs
v6.60.0+
Fuel Tank 3 Weight
sim/flightmodel/weight/m_fuel_total
float in kgs
v8.20.0+
Fuel Total Weight
sim/flightmodel/weight/m_jettison
float in kgs
v6.60.0+
Jettison
sim/flightmodel/weight/m_jettison_kg_sec
float in kg/sec
v12.0.8+
Jettison rate for water etc. kg/sec
sim/flightmodel/weight/m_shift
float in kgs
v12.1.0+
Shiftable weight, such as the pilot on a hang-glider
sim/flightmodel/weight/m_stations[9]
float in kgs
v12.0.0+
Payload Weight per station, if airplane has stations
sim/flightmodel/weight/m_total
float in kgs
v6.60.0+
Total Weight
sim/flightmodel2/
The flightmodel2 section contains data about how the actual aircraft is being drawn. Use this section to build animated objects for the aircraft. Do not use these datarefs in the cockpit.
sim/flightmodel2/controls/
This section contains general control surface values for the whole plane. These are the actual control movements, e.g. if the control efficacy is reduced by low hydraulic pressure, these show what actually moved, not what the pilot wants.
sim/flightmodel2/controls/aileron_trim
float as a ratio
v9.0.0+
Aileron trim, in part of MAX FLIGHT CONTROL DEFLECTION. So, if the aileron trim is deflected enough to move the ailerons through 30% of their travel, then that is an aileron trim of 0.3.
sim/flightmodel2/controls/airbus_law
int in enum
v12.0.0+
0=Normal, 1=Alternate, 2=Direct, only updated if acf is equipped with Airbus flight controls.
sim/flightmodel2/controls/airbus_speed_warn_thro_0
int as a boolean
v12.0.0+
Low-speed condition, 5 degrees below alpha-max, only updated if acf is equipped with Airbus flight controls.
sim/flightmodel2/controls/airbus_speed_warn_thro_1
int as a boolean
v12.0.0+
Low-speed condition, 5 degrees below alpha-max, only updated if acf is equipped with Airbus flight controls.
sim/flightmodel2/controls/dihedral_ratio
float as a ratio
v9.0.0+
Actual dihedral, in ratio. 0.0 is no dihedral deployment, 1 is max dihedral deployment.
sim/flightmodel2/controls/elevator_trim
float as a ratio
v9.0.0+
Elevator trim, in part of MAX FLIGHT CONTROL DEFLECTION. So, if the elevator trim is deflected enough to move the elevators through 30% of their travel, then that is an elevator trim of 0.3.
sim/flightmodel2/controls/flap1_deploy_ratio
float as a ratio
v9.0.0+
ACTUAL FLAP deployment for flap-set #1, in ratio, where 0.0 is flaps fully retracted, and 1.0 is flaps fully extended.
sim/flightmodel2/controls/flap2_deploy_ratio
float as a ratio
v9.0.0+
ACTUAL FLAP deployment for flap-set #2, in ratio, where 0.0 is flaps fully retracted, and 1.0 is flaps fully extended.
sim/flightmodel2/controls/flap_handle_deploy_ratio
float as a ratio
v9.0.0+
Use sim/cockpit2/controls/flap_system_deploy_ratio
sim/flightmodel2/controls/heading_ratio
float as a ratio
v9.0.0+
How much the flight controls are deflected in heading after any stability augmentation, where -1.0 is full left, and 1.0 is full right.
sim/flightmodel2/controls/incidence_ratio
float as a ratio
v9.0.0+
Actual incidence, in ratio. 0.0 is no incidence deployment, 1 is max incidence deployment.
sim/flightmodel2/controls/pitch_ratio
float as a ratio
v9.0.0+
How much the flight controls are deflected in pitch after any stability augmentation, in ratio, where -1.0 is full down, and 1.0 is full up.
sim/flightmodel2/controls/pitch_ratio_right
float as a ratio
v12.0.0+
Right wings only: This is how much the flight controls are deflected in pitch after any stability augmentation, in ratio, where -1.0 is full down, and 1.0 is full up.
sim/flightmodel2/controls/roll_ratio
float as a ratio
v9.0.0+
How much the flight controls are deflected in roll after any stability augmentation, in ratio, where -1.0 is full left, and 1.0 is full right.
sim/flightmodel2/controls/roll_ratio_right
float as a ratio
v12.0.0+
Right wings only: This is how much the flight controls are deflected in roll after any stability augmentation, in ratio, where -1.0 is full left, and 1.0 is full right.
sim/flightmodel2/controls/rotor_trim
float as a ratio
v9.0.0 - v11.99.0
Rotor trim, in part of MAX FLIGHT CONTROL DEFLECTION. So, if the rotor trim is deflected enough to move the rotor through 30% of its travel, then that is a rotor trim of 0.3.
sim/flightmodel2/controls/rudder_trim
float as a ratio
v9.0.0+
Rudder trim, in part of MAX FLIGHT CONTROL DEFLECTION. So, if the rudder trim is deflected enough to move the rudders through 30% of their travel, then that is an rudder trim of 0.3.
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