# Aircraft General Systems Events<no value>
The event IDs listed here are those that are related to aircraft multiple smaller aircraft systems, but that don't have so many events associated with them that they require dedicated pages.


### Liquid Dropping System

These key events are all related to the [Modular Liquid Dropping System](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/). Most of them require the name (or index) of the component that they target. This name is given using the following format:

``` xml
'[COMPONENT_NAME]'_n
```

For example:

``` xml
16383 'Scoop_1'_n (>K:2:LIQUID_DROPPING_SYSTEM_SCOOP_SET)
```

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_CLOSE" />}}`LIQUID_DROPPING_SYSTEM_DOOR_CLOSE` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_CLOSE` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) name (or index) | Close the named (or indexed) liquid dropping system door. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_CLOSE" />}}`LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_CLOSE` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_CLOSE` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) command group index | Close all the doors that belong to the given command group index. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_OPEN" />}}`LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_OPEN` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_OPEN` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) command group index | Open all the doors that belong to the given command group index. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_SET" />}}`LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_SET` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_SET` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) command group index<span></span>[1]: Door Target Position (Position 16k) | Set all the doors that belong to the given command group index to the supplied value, where 0 is fully closed and 16384 is fully open. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_TOGGLE" />}}`LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_TOGGLE` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_COMMAND_GROUP_TOGGLE` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) command group index | Toggle all the doors that belong to the given command group index (so open doors will close and closed doors will open).<span></span>Note that the initial position is taken from the *first* door found with the correct command group index, and then the toggled value for that door is applied to *all* doors, even if their original position was different. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_OPEN" />}}`LIQUID_DROPPING_SYSTEM_DOOR_OPEN` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_OPEN` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) name (or index) | Open the named (or indexed) liquid dropping system door. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_SET" />}}`LIQUID_DROPPING_SYSTEM_DOOR_SET` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_SET` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) name (or index)<span></span>[1]: Door Target Position (Position 16k) | Set the named (or indexed) door to the supplied value, where 0 is fully closed and +16384 is fully open. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_DOOR_TOGGLE" />}}`LIQUID_DROPPING_SYSTEM_DOOR_TOGGLE` | `KEY_LIQUID_DROPPING_SYSTEM_DOOR_TOGGLE` | [0]: [Door](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#doorn) name (or index) | Toggle the named (or indexed) liquid dropping system door (so open doors will close and closed doors will open). |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_SCOOP_CLOSE" />}}`LIQUID_DROPPING_SYSTEM_SCOOP_CLOSE` | `KEY_LIQUID_DROPPING_SYSTEM_SCOOP_CLOSE` | [0]: [Scoop](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#scoopn) name (or index) | Open the named (or indexed) liquid dropping system scoop. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_SCOOP_OPEN" />}}`LIQUID_DROPPING_SYSTEM_SCOOP_OPEN` | `KEY_LIQUID_DROPPING_SYSTEM_SCOOP_OPEN` | [0]: [Scoop](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#scoopn) name (or index) | Open the named (or indexed) liquid dropping system scoop. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_SCOOP_SET" />}}`LIQUID_DROPPING_SYSTEM_SCOOP_SET` | `KEY_LIQUID_DROPPING_SYSTEM_SCOOP_SET` | [0]: [Scoop](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#scoopn) name (or index)<span></span>[1]: Scoop Target Position (Position 16k) | Set the named (or indexed) scoop to the supplied value, where 0 is fully closed and 16384 is fully open. |
| {{< anchor id="LIQUID_DROPPING_SYSTEM_SCOOP_TOGGLE" />}}`LIQUID_DROPPING_SYSTEM_SCOOP_TOGGLE` | `KEY_LIQUID_DROPPING_SYSTEM_SCOOP_TOGGLE` | [0]: [Scoop](../../../content-configuration/cfg-files/system/modular-liquid-dropping-system-information/#scoopn) name (or index) | Toggle the named (or indexed) liquid dropping system scoop (so open scoops will close and closed scoops will open). |
| {{< anchor id="FIREFIGHTING_SCOOP_DOORS" />}}`FIREFIGHTING_SCOOP_DOORS` | `KEY_FIREFIGHTING_SCOOP_DOORS` | User Defined | *This event is unbound in the simulation and as such can be used for a variety of things depending on aircraft specific model behaviors.* |
| {{< anchor id="SPRAY_OFF" />}}`SPRAY_OFF` | `KEY_SPRAY_OFF` | User Defined | *This event is unbound in the simulation and as such can be used for a variety of things depending on aircraft specific model behaviors.* |
| {{< anchor id="SPRAY_ON" />}}`SPRAY_ON` | `KEY_SPRAY_ON` | User Defined | *This event is unbound in the simulation and as such can be used for a variety of things depending on aircraft specific model behaviors.* |
| {{< anchor id="SPRAY_TOGGLE" />}}`SPRAY_TOGGLE` | `KEY_SPRAY_TOGGLE` | User Defined | *This event is unbound in the simulation and as such can be used for a variety of things depending on aircraft specific model behaviors.* |
| {{< anchor id="SPRAY_SET" />}}`SPRAY_SET` | `KEY_SPRAY_SET` | User Defined | *This event is unbound in the simulation and as such can be used for a variety of things depending on aircraft specific model behaviors.* |

{{< /table-wrapper >}}


### Pneumatics System

These key events are all related to the [Modular Pneumatics System](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/). Most of them require the name (or index) of the component that they target. This name is given using the following format:

``` xml
'[COMPONENT_NAME]'_n
```

For example:

``` xml
16384 'Fan_1'_n (>K:2:PNEUMATICS_FAN_SET)
```

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="PNEUMATICS_AREA_TEMPERATURE_DEC" />}}`PNEUMATICS_AREA_TEMPERATURE_DEC` | `KEY_PNEUMATICS_AREA_TEMPERATURE_DEC` | [0]: [Area](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#arean) name (or index)<span></span>[1]: Value | Decrements the target temperature of the specified area by the given amount. Value is given in °C. |
| {{< anchor id="PNEUMATICS_AREA_TEMPERATURE_INC" />}}`PNEUMATICS_AREA_TEMPERATURE_INC` | `KEY_PNEUMATICS_AREA_TEMPERATURE_INC` | [0]: [Area](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#arean) name (or index)<span></span>[1]: Value | Increments the target temperature of the specified area by the given amount. Value is given in °C. |
| {{< anchor id="PNEUMATICS_AREA_TEMPERATURE_SET" />}}`PNEUMATICS_AREA_TEMPERATURE_SET` | `KEY_PNEUMATICS_AREA_TEMPERATURE_SET` | [0]: [Area](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#arean) name (or index)<span></span>[1]: Value | Sets the target temperature of the specified area to the given amount. Value is given in °C. |
| {{< anchor id="PNEUMATICS_FAN_SET" />}}`PNEUMATICS_FAN_SET` | `KEY_PNEUMATICS_FAN_SET` | [0]: [Fan](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#fann) name (or index)<span></span>[1]: {{< glossterm >}}percent_over_100{{< /glossterm >}} | Sets the the speed of the given fan to the specified ratio where 0 is off and 1 is full power. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_AUTO_OFF" />}}`PNEUMATICS_PACK_FLOW_AUTO_OFF` | `KEY_PNEUMATICS_PACK_FLOW_AUTO_OFF` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Sets the given pack auto flow mode to OFF. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_AUTO_ON" />}}`PNEUMATICS_PACK_FLOW_AUTO_ON` | `KEY_PNEUMATICS_PACK_FLOW_AUTO_ON` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Sets the given pack auto flow mode to ON. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_AUTO_SET" />}}`PNEUMATICS_PACK_FLOW_AUTO_SET` | `KEY_PNEUMATICS_PACK_FLOW_AUTO_SET` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Bool | Sets the given pack auto flow mode to ON (1) or OFF (0). |
| {{< anchor id="PNEUMATICS_PACK_FLOW_MODE_HIGH" />}}`PNEUMATICS_PACK_FLOW_MODE_HIGH` | `KEY_PNEUMATICS_PACK_FLOW_MODE_HIGH` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Sets the given pack flow state to HIGH. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_MODE_LOW" />}}`PNEUMATICS_PACK_FLOW_MODE_LOW` | `KEY_PNEUMATICS_PACK_FLOW_MODE_LOW` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Sets the given pack flow state to LOW. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_MODE_NORM" />}}`PNEUMATICS_PACK_FLOW_MODE_NORM` | `KEY_PNEUMATICS_PACK_FLOW_MODE_NORM` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Sets the given pack flow state to NORMAL. |
| {{< anchor id="PNEUMATICS_PACK_FLOW_MODE_SET" />}}`PNEUMATICS_PACK_FLOW_MODE_SET` | `KEY_PNEUMATICS_PACK_FLOW_MODE_SET` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Enum | Sets the given pack to use a different flow state, where:<span></span>{{< params/smallfont >}}0 = LOW<span></span>1 = NORMAL<span></span>2 = HIGH{{< /params/smallfont >}} |
| {{< anchor id="PNEUMATICS_PACK_OFF" />}}`PNEUMATICS_PACK_OFF` | `KEY_PNEUMATICS_PACK_OFF` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Turns OFF the given pack. |
| {{< anchor id="PNEUMATICS_PACK_ON" />}}`PNEUMATICS_PACK_ON` | `KEY_PNEUMATICS_PACK_ON` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | Turns ON the given pack. |
| {{< anchor id="PNEUMATICS_PACK_SET" />}}`PNEUMATICS_PACK_SET` | `KEY_PNEUMATICS_PACK_SET` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Bool | Turns the given pack ON (1) or OFF (0) based on the supplied value. |
| {{< anchor id="PNEUMATICS_PACK_TOGGLE" />}}`PNEUMATICS_PACK_TOGGLE` | `KEY_PNEUMATICS_PACK_TOGGLE` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index) | This can be used to toggle the given pack ON (1) or OFF (0). |
| {{< anchor id="PNEUMATICS_PACKS_FLOW_DEC" />}}`PNEUMATICS_PACKS_FLOW_DEC` | `KEY_PNEUMATICS_PACKS_FLOW_DEC` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Value | Decrements the flow amount of the specified area by the given amount. Value should be between 0 and 1. |
| {{< anchor id="PNEUMATICS_PACKS_FLOW_INC" />}}`PNEUMATICS_PACKS_FLOW_INC` | `KEY_PNEUMATICS_PACKS_FLOW_INC` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Value | Increments the flow amount of the specified area by the given amount. Value should be between 0 and 1. |
| {{< anchor id="PNEUMATICS_PACKS_FLOW_SET" />}}`PNEUMATICS_PACKS_FLOW_SET` | `KEY_PNEUMATICS_PACKS_FLOW_SET` | [0]: [Pack](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#packn) name (or index)<span></span>[1]: Value | Increments the flow amount of the specified area by the given amount. Value should be between 0 and 1. |
| {{< anchor id="PNEUMATICS_TARGET_CABIN_ALTITUDE_DEC" />}}`PNEUMATICS_TARGET_CABIN_ALTITUDE_DEC` | `KEY_PNEUMATICS_TARGET_CABIN_ALTITUDE_DEC` | [0]: Value | Decrements the associated pressure target altitude for the whole aircraft by the given amount. Value is in {{< glossterm >}}ft{{< /glossterm >}}. |
| {{< anchor id="PNEUMATICS_TARGET_CABIN_ALTITUDE_INC" />}}`PNEUMATICS_TARGET_CABIN_ALTITUDE_INC` | `KEY_PNEUMATICS_TARGET_CABIN_ALTITUDE_INC` | [0]: Value | Increments the associated pressure target altitude for the whole aircraft by the given amount. Value is in {{< glossterm >}}ft{{< /glossterm >}}. |
| {{< anchor id="PNEUMATICS_TARGET_CABIN_ALTITUDE_SET" />}}`PNEUMATICS_TARGET_CABIN_ALTITUDE_SET` | `KEY_PNEUMATICS_TARGET_CABIN_ALTITUDE_SET` | [0]: value | Sets the associated pressure target altitude for the whole aircraft to the given altitude. Value is in {{< glossterm >}}ft{{< /glossterm >}}. |
| {{< anchor id="PNEUMATICS_VALVE_CLOSE" />}}`PNEUMATICS_VALVE_CLOSE` | `KEY_PNEUMATICS_VALVE_CLOSE` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | Closes the given valve. |
| {{< anchor id="PNEUMATICS_VALVE_MODE_AUTO" />}}`PNEUMATICS_VALVE_MODE_AUTO` | `KEY_PNEUMATICS_VALVE_MODE_AUTO` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | Sets the operational mode of the given valve to AUTO. |
| {{< anchor id="PNEUMATICS_VALVE_MODE_CLOSED" />}}`PNEUMATICS_VALVE_MODE_CLOSED` | `KEY_PNEUMATICS_VALVE_MODE_CLOSED` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | Sets the operational mode of the given valve to CLOSED. |
| {{< anchor id="PNEUMATICS_VALVE_MODE_OPEN" />}}`PNEUMATICS_VALVE_MODE_OPEN` | `KEY_PNEUMATICS_VALVE_MODE_OPEN` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | Sets the operational mode of the given valve to OPEN. |
| {{< anchor id="PNEUMATICS_VALVE_MODE_SET" />}}`PNEUMATICS_VALVE_MODE_SET` | `KEY_PNEUMATICS_VALVE_MODE_SET` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index)<span></span>[1]: Enum | Sets the operational mode of the given valve to the given value. The mode values are as follows:<span></span>{{< params/smallfont >}}0 = AUTO<span></span>1 = MANUAL<span></span>2 = OPEN<span></span>3 = CLOSED{{< /params/smallfont >}} |
| {{< anchor id="PNEUMATICS_VALVE_OPEN" />}}`PNEUMATICS_VALVE_OPEN` | `KEY_PNEUMATICS_VALVE_OPEN` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | Opens the given valve. |
| {{< anchor id="PNEUMATICS_VALVE_SET" />}}<span class="legacy">`PNEUMATICS_VALVE_SET`</span> | `KEY_PNEUMATICS_VALVE_SET` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index)<span></span>[1]: Valve target position (Position 16k) | Set the given valve to the supplied value, where 0 is fully closed and 16384 is fully open.<span></span>**NOTE**: This key event has issues when trying to set the valve value and you should be using either the `PNEUMATIC_VALVE_SET_EX1` version, or the `PNEUMATICS VALVE TARGET STATUS` SimVar. |
| {{< anchor id="PNEUMATICS_VALVE_SET_EX1" />}}`PNEUMATICS_VALVE_SET_EX1` | `KEY_PNEUMATICS_VALVE_SET_EX1` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index)<span></span>[1]: Valve target position (Position 16k) | Set the given valve to the supplied value, where 0 is fully closed and 16384 is fully open. |
| {{< anchor id="PNEUMATICS_VALVE_TOGGLE" />}}`PNEUMATICS_VALVE_TOGGLE` | `KEY_PNEUMATICS_VALVE_TOGGLE` | [0]: [Valve](../../../content-configuration/cfg-files/system/modular-pneumatics-system-information/#valven) name (or index) | This can be used to toggle the given valve open (1) or closed (0). |

{{< /table-wrapper >}}


### Hydraulics System

These key events are all related to the [Modular Hydraulics System](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/). Most of them require the name (or index) of the component that they target. This name is given using the following format:

``` xml
'[COMPONENT_NAME]'_n
```

For example:

``` xml
'Pump_1'_n (>K:HYDRAULIC_SWITCH_TOGGLE)
```

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="HYDRAULIC_ACTUATOR_ACTIVE_OFF" />}}`HYDRAULIC_ACTUATOR_ACTIVE_OFF` | `KEY_HYDRAULIC_ACTUATOR_ACTIVE_OFF` | [0]: [actuator](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#actuatorn) name (or index) | This can be used to switch off a "Custom" actuator (it will fail on all other actuator types). See here for more information: [Custom Actuators](../../../content-configuration/cfg-files/system/hydraulics-system-setup-information/#custom-actuators) |
| {{< anchor id="HYDRAULIC_ACTUATOR_ACTIVE_ON" />}}`HYDRAULIC_ACTUATOR_ACTIVE_ON` | `KEY_HYDRAULIC_ACTUATOR_ACTIVE_ON` | [0]: [actuator](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#actuatorn) name (or index) | This can be used to switch on a "Custom" actuator (it will fail on all other actuator types). See here for more information: [Custom Actuators](../../../content-configuration/cfg-files/system/hydraulics-system-setup-information/#custom-actuators) |
| {{< anchor id="HYDRAULIC_ACTUATOR_ACTIVE_SET" />}}`HYDRAULIC_ACTUATOR_ACTIVE_SET` | `KEY_HYDRAULIC_ACTUATOR_ACTIVE_SET` | [0]: [actuator](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#actuatorn) name (or index)<span></span>[1] Bool | This can be used to switch on or off a "Custom" actuator (it will fail on all other actuator types). See here for more information: [Custom Actuators](../../../content-configuration/cfg-files/system/hydraulics-system-setup-information/#custom-actuators) |
| {{< anchor id="HYDRAULIC_ACTUATOR_ACTIVE_TOGGLE" />}}`HYDRAULIC_ACTUATOR_ACTIVE_TOGGLE` | `KEY_HYDRAULIC_ACTUATOR_ACTIVE_TOGGLE` | [0]: [actuator](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#actuatorn) name (or index) | This can be used to toggle on or off a "Custom" actuator (it will fail on all other actuator types). See here for more information: [Custom Actuators](../../../content-configuration/cfg-files/system/hydraulics-system-setup-information/#custom-actuators) |
| {{< anchor id="HYDRAULIC_SWITCH_TOGGLE" />}}`HYDRAULIC_SWITCH_TOGGLE` | `KEY_HYDRAULIC_SWITCH_TOGGLE` | [0]: [pump](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#pumpn) name (or index) | This can be used to toggle the given hydraulic pump on or off. |
| {{< anchor id="HYDRAULIC_VALVE_CLOSE" />}}`HYDRAULIC_VALVE_CLOSE` | `KEY_HYDRAULIC_VALVE_CLOSE` | [0]: [valve](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#valven) name (or index) | This will close the given hydraulic valve. |
| {{< anchor id="HYDRAULIC_VALVE_OPEN" />}}`HYDRAULIC_VALVE_OPEN` | `KEY_HYDRAULIC_VALVE_OPEN` | [0]: [valve](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#valven) name (or index) | This will open the given hydraulic valve. |
| {{< anchor id="HYDRAULIC_VALVE_SET" />}}<span class="legacy">`HYDRAULIC_VALVE_SET`</span> | `KEY_HYDRAULIC_VALVE_SET` | [0]: [valve](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#valven) name (or index)<span></span>[1]: Valve target position (Position 16k) | Set the given valve to the supplied value, where 0 is fully closed and 16384 is fully open.<span></span>**NOTE**: This key event has issues when trying to set the valve value and you should be using either the [`HYDRAULIC_VALVE_SET_EX1`](#HYDRAULIC_VALVE_SET_EX1) version, or the [`HYDRAULIC VALVE TARGET POS`](../../simvars/aircraft-simvars/aircraft-system-variables/#HYDRAULIC-VALVE-TARGET-POS) SimVar. |
| {{< anchor id="HYDRAULIC_VALVE_SET_EX1" />}}`HYDRAULIC_VALVE_SET_EX1` | `KEY_HYDRAULIC_VALVE_SET_EX1` | [0]: [valve](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#valven) name (or index)<span></span>[1]: Valve target position (Position 16k) | Set the given valve to the supplied value, where 0 is fully closed and 16384 is fully open. |
| {{< anchor id="HYDRAULIC_VALVE_TOGGLE" />}}`HYDRAULIC_VALVE_TOGGLE` | `KEY_HYDRAULIC_VALVE_TOGGLE` | [0]: [valve](../../../content-configuration/cfg-files/system/modular-hydraulics-system-information/#valven) name (or index) | This will toggle the given hydraulic valve open/closed. |

{{< /table-wrapper >}}


### Landing Gear / Brakes

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="ANTISKID_BRAKES_TOGGLE" />}}`ANTISKID_BRAKES_TOGGLE` | `KEY_ANTISKID_BRAKES_TOGGLE` | N/A | Turn the anti-skid braking system on or off. |
| {{< anchor id="AXIS_LEFT_BRAKE_LINEAR_SET" />}}<span class="legacy">`AXIS_LEFT_BRAKE_LINEAR_SET`</span> | `KEY_AXIS_LEFT_BRAKE_LINEAR_SET` | [0]: the brake position from -16383 to 16383 | Sets the left brake position from an axis controller (e.g. joystick) to the value given as the parameter [0], from -16383 (0 braking) to +16383 (maximum braking). Note that this is on a **linear** scale:<span></span>{{< params/smallfont >}}-16383 = 0%<span></span>0 = 50%<span></span>+16383 = 100%{{< /params/smallfont >}}<span></span>**NOTE**: This is now simply an alias for [`AXIS_LEFT_BRAKE_SET`](#AXIS_LEFT_BRAKE_SET), and as such should not be used. |
| {{< anchor id="AXIS_LEFT_BRAKE_SET" />}}`AXIS_LEFT_BRAKE_SET` | `KEY_AXIS_LEFT_BRAKE_SET` | [0]: the brake position from -16383 to 16383 | Sets the left brake position from an axis controller (e.g. joystick) to the value given as the parameter [0], from -16383 (0 braking) to +16383 (maximum braking). Note that this is on a **non-linear** scale:<span></span>{{< params/smallfont >}}-16383 = 0%<span></span>-8191 = 8%<span></span>0 = 27%<span></span>+8191 = 53%<span></span>+16383 = 100%{{< /params/smallfont >}} |
| {{< anchor id="AXIS_RIGHT_BRAKE_LINEAR_SET" />}}<span class="legacy">`AXIS_RIGHT_BRAKE_LINEAR_SET`</span> | `KEY_AXIS_RIGHT_BRAKE_LINEAR_SET` | [0]: the brake position from -16383 to 16383 | Sets the right brake position from an axis controller (e.g. joystick) to the value given as the parameter [0], from -16383 (0 braking) to +16383 (maximum braking). Note that this is on a **linear** scale:<span></span>{{< params/smallfont >}}-16383 = 0%<span></span>0 = 50%<span></span>+16383 = 100%{{< /params/smallfont >}}<span></span>**NOTE**: This is now simply an alias for [`AXIS_RIGHT_BRAKE_SET`](#AXIS_RIGHT_BRAKE_SET), and as such should not be used. |
| {{< anchor id="AXIS_RIGHT_BRAKE_SET" />}}`AXIS_RIGHT_BRAKE_SET` | `KEY_AXIS_RIGHT_BRAKE_SET` | [0]: the brake position from -16383 to 16383 | Sets the right brake position from an axis controller (e.g. joystick) to the value given as the parameter [0], from -16383 (0 braking) to +16383 (maximum braking). Note that this is on a **non-linear** scale:<span></span>{{< params/smallfont >}}-16383 = 0%<span></span>-8191 = 8%<span></span>0 = 27%<span></span>+8191 = 53%<span></span>+16383 = 100%{{< /params/smallfont >}} |
| {{< anchor id="BRAKES" />}}`BRAKES` | `KEY_BRAKES` | N/A | Increment brake pressure |
| {{< anchor id="BRAKES_LEFT" />}}`BRAKES_LEFT` | `KEY_BRAKES_LEFT` | N/A | Increments left brake pressure |
| {{< anchor id="BRAKES_RIGHT" />}}`BRAKES_RIGHT` | `KEY_BRAKES_RIGHT` | N/A | Increments right brake pressure |
| {{< anchor id="GEAR_DOWN" />}}`GEAR_DOWN` | `KEY_GEAR_DOWN` | N/A | Sets gear handle in DOWN position |
| {{< anchor id="GEAR_EMERGENCY_HANDLE_TOGGLE" />}}`GEAR_EMERGENCY_HANDLE_TOGGLE` | `KEY_GEAR_EMERGENCY_HANDLE_TOGGLE` | N/A | Toggle gear emergency handle. |
| {{< anchor id="GEAR_PUMP" />}}`GEAR_PUMP` | `KEY_GEAR_PUMP` | N/A | Increments emergency gear extension |
| {{< anchor id="GEAR_SET" />}}`GEAR_SET` | `KEY_GEAR_SET` | [0]: Position | Sets gear handle position up/down (0,1) |
| {{< anchor id="GEAR_TOGGLE" />}}`GEAR_TOGGLE` | `KEY_GEAR_TOGGLE` | N/A | Toggle gear handle |
| {{< anchor id="GEAR_UP" />}}`GEAR_UP` | `KEY_GEAR_UP` | N/A | Sets gear handle in UP position |
| {{< anchor id="PARKING_BRAKES" />}}`PARKING_BRAKES` | `KEY_PARKING_BRAKES` | N/A | Toggles the parking brake on/off |
| {{< anchor id="PARKING_BRAKES_OFF" />}}`PARKING_BRAKES_OFF` | `KEY_PARKING_BRAKES_OFF` | N/A | Enables the parking brake. |
| {{< anchor id="PARKING_BRAKES_ON" />}}`PARKING_BRAKES_ON` | `KEY_PARKING_BRAKES_ON` | N/A | Disables the parking brake. |
| {{< anchor id="PARKING_BRAKE_SET" />}}`PARKING_BRAKE_SET` | `KEY_PARKING_BRAKE_SET` | [0]: Bool | Set the parking brake on/off |
| {{< anchor id="RETRACT_FLOAT_SWITCH_DEC" />}}`RETRACT_FLOAT_SWITCH_DEC` | `KEY_RETRACT_FLOAT_SWITCH_DEC` | N/A | If the plane has retractable floats, moves the retract position from Extend to Neutral, or Neutral to Retract. |
| {{< anchor id="RETRACT_FLOAT_SWITCH_INC" />}}`RETRACT_FLOAT_SWITCH_INC` | `KEY_RETRACT_FLOAT_SWITCH_INC` | N/A | If the plane has retractable floats, moves the retract position from Retract to Neutral, or Neutral to Extend. |

{{< /table-wrapper >}}


### Slings and Hoists

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="SLING_PICKUP_RELEASE" />}}`SLING_PICKUP_RELEASE` | `KEY_SLING_PICKUP_RELEASE` | N/A | Toggle between pickup and release mode. Hold mode is automatic and cannot be selected. |
| {{< anchor id="HOIST_SWITCH_EXTEND" />}}`HOIST_SWITCH_EXTEND` | `KEY_HOIST_SWITCH_EXTEND` | N/A | Set the hoist to extend. |
| {{< anchor id="HOIST_SWITCH_RETRACT" />}}`HOIST_SWITCH_RETRACT` | `KEY_HOIST_SWITCH_RETRACT` | N/A | Set the hoist to retract. |
| {{< anchor id="HOIST_SWITCH_SELECT" />}}`HOIST_SWITCH_SELECT` | `KEY_HOIST_SWITCH_SELECT` | N/A | Sets the mode to change the hoist sling to either extend (-) or retract (+) using the `PLUS` and `MINUS` keys. |
| {{< anchor id="HOIST_SWITCH_SET" />}}`HOIST_SWITCH_SET` | `KEY_HOIST_SWITCH_SET` | [0] Value | The hoist control switch setting. Should be set to one of the following values:<span></span>{{< params/smallfont >}}-1 - HOIST_RETRACT<span></span>0 - HOIST_OFF<span></span>1 - HOIST_EXTEND{{< /params/smallfont >}} |
| {{< anchor id="HOIST_DEPLOY_TOGGLE" />}}`HOIST_DEPLOY_TOGGLE` | `KEY_HOIST_DEPLOY_TOGGLE` | N/A | Toggles the hoist arm switch, extend or retract. |
| {{< anchor id="HOIST_DEPLOY_SET" />}}`HOIST_DEPLOY_SET` | `KEY_HOIST_DEPLOY_SET` | [0] Bool | The hoist deployment setting. The value should be set to one of the following:<span></span>{{< params/smallfont >}}0 - set hoist switch to retract the arm<span></span>1 - set hoist switch to extend the arm{{< /params/smallfont >}} |

{{< /table-wrapper >}}


### Grapple Hook / Lead Pole

The events listed here are used in [Aerial Advertising](../../../content-configuration/careers/aerial-advertising/) missions to control the state of the grapple hook and lead pole.

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name    | Event ID| Parameters  | Description |
|----|----|----|----|
| {{< anchor id="GRAPPLE_HOOK_OFF" />}}`GRAPPLE_HOOK_OFF` | `KEY_GRAPPLE_HOOK_OFF`    | N/A  | Close the grapple hook. |
| {{< anchor id="GRAPPLE_HOOK_ON" />}}`GRAPPLE_HOOK_ON`   | `KEY_GRAPPLE_HOOK_ON`     | N/A  | Open the grapple hook.  |
| {{< anchor id="GRAPPLE_HOOK_TOGGLE" />}}`GRAPPLE_HOOK_TOGGLE` | `KEY_GRAPPLE_HOOK_TOGGLE` | N/A  | Toggle the grapple hook between open and closed.|
| {{< anchor id="GRAPPLE_HOOK_SET" />}}`GRAPPLE_HOOK_SET` | `KEY_GRAPPLE_HOOK_SET`    | [0]: A value between 0 and 16384 | Set the grapple hook open value, between 0 (closed) and 16384 (open).   |
| {{< anchor id="LEAD_POLE_OFF" />}}`LEAD_POLE_OFF` | `KEY_LEAD_POLE_OFF` | N/A  | Extend the lead pole.   |
| {{< anchor id="LEAD_POLE_ON" />}}`LEAD_POLE_ON`   | `KEY_LEAD_POLE_ON`  | N/A  | Retract the lead pole.  |
| {{< anchor id="LEAD_POLE_TOGGLE" />}}`LEAD_POLE_TOGGLE` | `KEY_LEAD_POLE_TOGGLE`    | N/A  | Toggle the lead pole between extended and retracted.  |
| {{< anchor id="LEAD_POLE_SET" />}}`LEAD_POLE_SET` | `KEY_LEAD_POLE_SET` | [0]: A value between 0 and 16384 | Set the lead pole extended value, between 0 (retracted) and 16384 (extended). |

{{< /table-wrapper >}}


### Night Vision

The events listed below can be used for working with night vision effects.

{{< table-wrapper "colclass-3=font-size:0.75rem" "200px" "200px" "150px" "" >}}

| Key Name  | Event ID  | Parameters  | Description   |
|-----|-----|----|---|
| {{< anchor id="NIGHT_VISION_DISPLAY_OFF" />}}`NIGHT_VISION_DISPLAY_OFF` | `KEY_NIGHT_VISION_DISPLAY_OFF`   | N/A  | Switches off the night vision display.|
| {{< anchor id="NIGHT_VISION_DISPLAY_ON" />}}`NIGHT_VISION_DISPLAY_ON`   | `KEY_NIGHT_VISION_DISPLAY_ON` | N/A  | Switches on the night vision display (assuming that the aircraft night vision [`Available`](../../../content-configuration/cfg-files/systems.cfg/#Available-NIGHT_VISION) parameter is 1/true)|
| {{< anchor id="NIGHT_VISION_DISPLAY_SET" />}}`NIGHT_VISION_DISPLAY_SET` | `KEY_NIGHT_VISION_DISPLAY_SET`   | [0] Bool | Sets the night vision display on (1) or off (0). Note that it can only be toggled on if the aircraft night vision [`Available`](../../../content-configuration/cfg-files/systems.cfg/#Available-NIGHT_VISION) parameter is 1/true |
| {{< anchor id="NIGHT_VISION_DISPLAY_TOGGLE" />}}`NIGHT_VISION_DISPLAY_TOGGLE` | `KEY_NIGHT_VISION_DISPLAY_TOGGLE`| N/A  | Toggles the night vision display between on (1) or off (0,). Note that it can only be toggled on if the aircraft night vision [`Available`](../../../content-configuration/cfg-files/systems.cfg/#Available-NIGHT_VISION) parameter is 1/true |
| {{< anchor id="NIGHT_VISION_INTENSITY_DEC" />}}`NIGHT_VISION_INTENSITY_DEC`   | `KEY_NIGHT_VISION_INTENSITY_DEC` | [0] Float (optional) | Increments the night vision intensity by 10 (default) or by the amount supplied, up to a maximum of 300.|
| {{< anchor id="NIGHT_VISION_INTENSITY_INC" />}}`NIGHT_VISION_INTENSITY_INC`   | `KEY_NIGHT_VISION_INTENSITY_INC` | [0] Float (optional) | Decrements the night vision intensity by 10 (default) or by the amount supplied, down to a minimum of 0.|
| {{< anchor id="NIGHT_VISION_INTENSITY_SET" />}}`NIGHT_VISION_INTENSITY_SET`   | `KEY_NIGHT_VISION_INTENSITY_SET` | [0] Float| Sets the night vision intensity to the given value, which should be between 0 (lowest intensity) and 300 (highest intensity).   |

{{< /table-wrapper >}}