## AIRCRAFT MISC VARIABLES

The tables below indicate the properties for the Simulation Variables that can be used to get and set properties various miscellaneous properties related to the aircraft. For information on the units listed for each variable, please see here: Simulation Variable Units

NOTE: When Microsoft Flight Simulator is running in multiplayer mode, only a small number of variables are communicated between aircraft. Those variables that are available will say so in the description as being either for "All Aircraft" or for "Shared Cockpit".

You can find a complete index of all available SimVars here: SimVar Index

#### Aircraft States

Simulation Variable Description Units Settable
AMBIENT IN CLOUD True if the aircraft is in a cloud. Bool
CONTRAILS CONDITIONS MET True if the aircraft has met the conditions required to spawn the contrail VFX. Bool
IS SLEW ACTIVE True if slew is active Shared Cockpit Bool
IS SLEW ALLOWED True if slew is enabled Shared Cockpit Bool
IS USER SIM Is this the user loaded aircraft Bool
ON ANY RUNWAY Whether or not the plane is currently on a runway. Bool
PLANE IN PARKING STATE Whether or not the plane is currently parked (true) or not (false). Bool
SURFACE CONDITION The state of the surface directly under the aircraft.

Enum:

1. 0 = Normal
2. 1 = Wet
3. 2 = Icy
4. 3 = Snow
SURFACE INFO VALID True indicates that the SURFACE CONDITION return value is meaningful. Bool
SURFACE TYPE

The type of surface under the aircraft.

Enum:

1. 0 = Concrete
2. 1 = Grass
3. 2 = Water
4. 3 = Grass_bumpy
5. 4 = Asphalt
6. 5 = Short_grass
7. 6 = Long_grass
8. 7 = Hard_turf
9. 8 = Snow
10. 9 = Ice
11. 10 = Urban
12. 11 = Forest
13. 12 = Dirt
14. 13 = Coral
15. 14 = Gravel
16. 15 = Oil_treated
17. 16 = Steel_mats
18. 17 = Bituminus
19. 18 = Brick
21. 20 = Planks
22. 21 = Sand
23. 22 = Shale
24. 23 = Tarmac
25. 24 = Wright flyer track
STRUCTURAL ICE PCT Amount of ice on aircraft structure. 100 is fully iced. Percent Over 100
TITLE Title from aircraft.cfg String
TOW CONNECTION True if a towline is connected to both tow plane and glider. Bool
WINDSHIELD RAIN EFFECT AVAILABLE Is visual effect available on this aircraft Bool

#### Aircraft Position, Direction And Speed

Simulation Variable Description Units Settable
ACCELERATION BODY X Acceleration relative to aircraft axis, in east/west direction Feet (ft) per second squared
ACCELERATION BODY Y Acceleration relative to aircraft axis, in vertical direction Feet (ft) per second squared
ACCELERATION BODY Z Acceleration relative to aircraft axis, in north/south direction Feet (ft) per second squared
ACCELERATION WORLD X Acceleration relative to earth, in east/west direction Feet (ft) per second squared
ACCELERATION WORLD Y Acceleration relative to earth, in vertical direction Feet (ft) per second squared
ACCELERATION WORLD Z Acceleration relative to earth, in north/south direction Feet (ft) per second squared
SURFACE RELATIVE GROUND SPEED The speed of the aircraft relative to the speed of the first surface directly underneath it. Use this to retrieve, for example, an aircraft's taxiing speed while it is moving on a moving carrier. It also applies to airborne aircraft, for example when a helicopter is successfully hovering above a moving ship, this value should be zero. The returned value will be the same as GROUND VELOCITY if the first surface beneath it is not moving. Feet per second
GROUND VELOCITY Speed relative to the earths surface Knots
PLANE ALTITUDE Altitude of aircraft Feet (ft)
PLANE ALT ABOVE GROUND Altitude above the surface Feet (ft)
PLANE ALT ABOVE GROUND MINUS CG Altitude above the surface minus CG Feet (ft)
PLANE BANK DEGREES Bank angle, although the name mentions degrees the units used are radians Radians
PLANE HEADING DEGREES GYRO Heading indicator taken from the aircraft gyro. Degrees
PLANE HEADING DEGREES MAGNETIC Heading relative to magnetic north - although the name mentions degrees the units used are radians Radians
PLANE HEADING DEGREES TRUE Heading relative to true north - although the name mentions degrees the units used are radians Radians
PLANE LATITUDE Latitude of aircraft, North is positive, South negative Radians
PLANE LONGITUDE Longitude of aircraft, East is positive, West negative Radians
PLANE PITCH DEGREES Pitch angle, although the name mentions degrees the units used are radians Radians
PLANE TOUCHDOWN BANK DEGREES This float represents the bank of the player's plane from the last touchdown. (Not previsouly in FSX) Degrees
PLANE TOUCHDOWN HEADING DEGREES MAGNETIC This float represents the magnetic heading of the player's plane from the last touchdown. (Not previsouly in FSX) Degrees
PLANE TOUCHDOWN HEADING DEGREES TRUE This float represents the true heading of the player's plane from the last touchdown. (Not previsouly in FSX) Degrees
PLANE TOUCHDOWN LATITUDE This float represents the plane latitude for the last touchdown. (Not previsouly in FSX) Radians
PLANE TOUCHDOWN LONGITUDE This float represents the plane longitude for the last touchdown. (Not previsouly in FSX) Radians
PLANE TOUCHDOWN NORMAL VELOCITY This float represents the player's plane speed according to ground normal from the last touchdown. (Not previsouly in FSX) Feet (ft) per second
PLANE TOUCHDOWN PITCH DEGREES This float represents the pitch of the player's plane from the last touchdown. (Not previsouly in FSX) Degrees
RELATIVE WIND VELOCITY BODY X Lateral speed relative to wind Feet (ft) per second
RELATIVE WIND VELOCITY BODY Y Vertical speed relative to wind Feet (ft) per second
RELATIVE WIND VELOCITY BODY Z Longitudinal speed relative to wind Feet (ft) per second
ROTATION ACCELERATION BODY X Rotation acceleration relative to aircraft axis Radians per second squared
ROTATION ACCELERATION BODY Y Rotation acceleration relative to aircraft axis Radians per second squared
ROTATION ACCELERATION BODY Z Rotation acceleration relative to aircraft axis Radians per second squared
ROTATION VELOCITY BODY X Rotation relative to aircraft axis Feet (ft) per second
ROTATION VELOCITY BODY Y Rotation relative to aircraft axis Feet (ft) per second
ROTATION VELOCITY BODY Z Rotation relative to aircraft axis Feet (ft) per second
SLOPE TO ATC RUNWAY The slope between the plane and the expected landing position of the runway. Returns 0 if no runway is assigned. Radians
VELOCITY BODY X True lateral speed, relative to aircraft axis Feet (ft) per second
VELOCITY BODY Y True vertical speed, relative to aircraft axis Feet (ft) per second
VELOCITY BODY Z True longitudinal speed, relative to aircraft axis Feet (ft) per second
VERTICAL SPEED The current indicated vertical speed for the aircraft. Feet (ft) per second

#### Aircraft Structs

Simulation Variable Description Units Settable
EYEPOINT POSITION The eyepoint position relative to the reference datum position for the aircraft.

SIMCONNECT_DATA_XYZ

feet

STRUC AIRSPEED HOLD PID CONSTS Returns the various airspeed PID constants. This is generally only used for AI controlled aircraft and boats, although it may be useful when working with RTCs and the user aircraft.

PID_STRUCT

STRUC HEADING HOLD PID CONSTS Returns the various airspeed PID constants. This is generally only used for AI controlled aircraft and boats, although it may be useful when working with RTCs and the user aircraft.

PID_STRUCT

STRUCT BODY ROTATION ACCELERATION The body rotation acceleration.

SIMCONNECT_DATA_XYZ

STRUCT BODY ROTATION VELOCITY The body rotation velocity.

SIMCONNECT_DATA_XYZ

STRUCT BODY VELOCITY The object body velocity.

SIMCONNECT_DATA_XYZ

feet per second

STRUCT ENGINE POSITION The engine position relative to the reference datum position for the aircraft.

SIMCONNECT_DATA_XYZ

feet.

STRUCT EYEPOINT DYNAMIC ANGLE The angle of the eyepoint view. Zero, zero, zero is straight ahead.

SIMCONNECT_DATA_XYZ

STRUCT EYEPOINT DYNAMIC OFFSET A variable offset away from the EYEPOINT POSITION

SIMCONNECT_DATA_XYZ

feet

STRUCT LATLONALT Returns the latitude, longitude and altitude of the user aircraft. SIMCONNECT_DATA_LATLONALT
STRUCT LATLONALTPBH Returns the pitch, bank and heading of the user aircraft. SIMCONNECT_DATA_LATLONALT

#### Airspeed

Simulation Variable Description Units Settable
AIRCRAFT WIND X Wind component in aircraft lateral axis Knots
AIRCRAFT WIND Y Wind component in aircraft vertical axis Knots
AIRCRAFT WIND Z Wind component in aircraft longitudinal axis Knots
AIRSPEED BARBER POLE Redline airspeed (dynamic on some aircraft) Knots
AIRSPEED INDICATED Indicated airspeed Knots
AIRSPEED MACH Current mach Mach
AIRSPEED SELECT INDICATED OR TRUE The airspeed, whether true or indicated airspeed has been selected. Knots
AIRSPEED TRUE True airspeed Knots
AIRSPEED TRUE RAW Equivalent to AIRSPEED TRUE, but does not account for wind when used to Set Airspeed value Knots
BARBER POLE MACH Mach associated with maximum airspeed Mach
TOTAL VELOCITY Velocity regardless of direction. For example, if a helicopter is ascending vertically at 100 fps, getting this variable will return 100. Feet (ft per second
WINDSHIELD WIND VELOCITY Longitudinal speed of wind on the windshield Feet (ft per second

#### Temperature

Simulation Variable Description Units Settable
STANDARD ATM TEMPERATURE Outside temperature on the standard ATM scale Rankine
TOTAL AIR TEMPERATURE Total air temperature is the air temperature at the front of the aircraft where the ram pressure from the speed of the aircraft is taken into account. Celsius

### Helicopter Specific (Deprecated)

These SimVars exist within  but are currently considered as deprecated and should not be used.

Simulation Variable Description Units Settable
IS ATTACHED TO SLING Set to true if this object is attached to a sling. Bool
NUM SLING CABLES The number of sling cables (not hoists) that are configured for the aircraft. Refer to the document Notes on Aircraft Systems. Number
SLING ACTIVE PAYLOAD STATION The payload station (identified by the parameter) where objects will be placed from the sling (identified by the index). Number
SLING CABLE BROKEN True if the cable is broken. Bool
SLING CABLE EXTENDED LENGTH The length of the cable extending from the aircraft. Feet (ft)
SLING HOIST PERCENT DEPLOYED The percentage of the full length of the sling cable deployed. Percent Over 100
SLING HOIST SWITCH True if the hoist is enabled. Bool
SLING HOOK IN PICKUP MODE A Boolean for whether or not the hook is in pickup mode, so capable of picking up another object.  Bool
SLING OBJECT ATTACHED If units are set as boolean, returns True if a sling object is attached. If units are set as a string, returns the container title of the object.There can be multiple sling positions, indexed from 1. The sling positions are set in the Aircraft Configuration File. Bool/String