BALLOON / AIRSHIP VARIABLES
The tables below indicate the properties for the Simulation Variables that can be used to get and set properties related specifically to hot air balloons and airships. For information on the units listed for each variable, please see here: Simulation Variable Units
NOTE: When Microsoft Flight Simulator 2024 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
Balloon Specific Variables
| Simulation Variable | Parameters | Description | Units | Settable |
|---|---|---|---|---|
BALLOON FILL AMOUNT |
[0] Percent | This is used to get / set the ratio of air within the balloon envelope from 0 (empty) to 1 (full). | Percent Over 100 | |
BALLOON GAS DENSITY |
N/A | The density of the gas inside the balloon. | slugs per cubic foot | |
BALLOON GAS TEMPERATURE |
N/A | Temperature of the gas inside a balloon. | Rankine | |
BALLOON VENT OPEN VALUE |
[0] Percent | This represents how open the "parachute valve" of a hot air balloon is, where 0 is fully closed and 1 is fully open. | Percent Over 100 | |
BURNER HEATING POWER |
[0] Name (or index) | This is the thermal power of the named (or indexed) Burner expressed in BTU per hour. If a value of 0 is given instead of a name (or index) then the sum total of all burners heating power will be returned. | Number | |
BURNER PILOT LIGHT ON |
[0] Name (or index) [1] True / False |
The named (or indexed) hot air balloon Burner pilot light status, where 0 (FALSE) is off, and 1 (TRUE) is on. Note that of the burner is not receiving fuel this SimVar will revert to 0 (FALSE), if set to 1 (TRUE). | Boolean | |
BURNER VALVE OPEN VALUE |
[0] Name (or index) [1] Percent |
This represents how open the the named (or indexed) burner Valve is, where 0 is fully closed and 1 is fully open. | Percent Over 100 | |
GROUND ATTACHMENT |
[0] Attach Status | This toggles the status of the attachment rope. When 1 (true) the balloon has an attachment rope, and when 0 (false) it does not. | Boolean |
Airship Specific Variables
| Simulation Variable | Parameters | Description | Units | Settable |
|---|---|---|---|---|
AIRSHIP COMPARTMENT GAS TYPE |
[0] Name / Index | Gets the type of gas being used by the named (or indexed) gas compartment. |
Enum:
|
|
AIRSHIP COMPARTMENT OVERPRESSURE |
[0] Name / Index |
Gets the over-pressure value of the named (or indexed) gas compartment. Note that this value is commonly expressed using inWG, which is not a supported SimVar unit, therfore some conversion may need done on the value before display/use. |
Millibars | |
AIRSHIP COMPARTMENT PRESSURE |
[0] Name / Index |
Gets the current pressure value of the named (or indexed) gas compartment. Note that this value is commonly expressed using inWG, which is not a supported SimVar unit, therfore some conversion may need done on the value before display/use. |
Millibars | |
AIRSHIP COMPARTMENT TEMPERATURE |
[0] Name / Index | Gets the current temperature value of the named (or indexed) gas compartment. | Celsius | |
AIRSHIP COMPARTMENT VOLUME |
[0] Name / Index | Gets the volume of gas in the named (or indexed) gas compartment. | Cubic Meter | |
AIRSHIP COMPARTMENT WEIGHT |
[0] Name / Index | Gets the weight of gas in the named (or indexed) gas compartment. | lbs | |
AIRSHIP DAMPER STATE |
[0] Name / Index [1] Status |
Gets or sets the state of the named (or indexed) gas compartment damper. Note that dampers are not defined explicitly, but are added automatically by the simulation, one per-compartment that is of the gas type "Air". Non-air compartments do not have dampers. |
Enum:
|
|
AIRSHIP FAN POWER PCT |
[0] Name / Index [1] Percent |
Gets or sets the state of the air intake fan for the named (or indexed) gas compartment. Note that air intake fans are not defined explicitly, but are added automatically by the simulation, one per-compartment that is of the gas type "Air". Non-air compartments do not have air intake fans. |
Percent Over 100 | |
AIRSHIP VALVE STATE |
[0] Name / Index [1] Status |
Gets or sets the state of the named (or indexed) valve. |
Enum:
|
|
MAST TRUCK DEPLOYMENT |
[0] Deployment Status | This toggles the status of the mast truck. When 1 (true) the truck should deploy the mast and other stabilisers, and when 0 (false) it should retract the mast and other stabilisers. | Boolean | |
MAST TRUCK EXTENSION |
[0] Percent |
This is used to get / set the extension value of the mast from the mast truck (which needs to be deployed first), where a value of 0 is no extension and a value of 100 is full extension. |
Percent |
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