# Aircraft Instrumentation Events<no value>
The event IDs listed here are those that are related to the different aircraft instrumentation.

### Aircraft Instruments

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| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="ATTITUDE_BARS_POSITION_DOWN" />}}`ATTITUDE_BARS_POSITION_DOWN` | `KEY_ATTITUDE_BARS_POSITION_DEC` | N/A | Decrements the attitude indicator pitch reference bars. If you hold down the key for more than 2 seconds it will decrement by 30, if you hold down the key for more than 1 second it will decrement by 10, otherwise it will decrement by 5. |
| {{< anchor id="ATTITUDE_BARS_POSITION_UP" />}}`ATTITUDE_BARS_POSITION_UP` | `KEY_ATTITUDE_BARS_POSITION_INC` | N/A | Increments the attitude indicator pitch reference bars. If you hold down the key for more than 2 seconds it will increment by 30, if you hold down the key for more than 1 second it will increment by 10, otherwise it will increment by 5. |
| {{< anchor id="ATTITUDE_BARS_POSITION_SET" />}}`ATTITUDE_BARS_POSITION_SET` | `KEY_ATTITUDE_BARS_POSITION_SET` | [0]: Index<span></span>[1]: Value | Sets attitude indicator pitch reference bars. Input value can be between -100 and 100. |
| {{< anchor id="BAROMETRIC" />}}`BAROMETRIC` | `KEY_BAROMETRIC` | N/A | Syncs altimeter setting to sea level pressure, or 29.92 if above 18000 feet. |
| {{< anchor id="BAROMETRIC_STD_PRESSURE" />}}`BAROMETRIC_STD_PRESSURE` | `KEY_BAROMETRIC_STD_PRESSURE` | [0]: the index of the altimeter | Set the altimeter setting to the pressure at the standard atmospheric level of 1013.25 {{< glossterm >}}hpa{{< /glossterm >}}. |
| {{< anchor id="GAUGE_KEYSTROKE" />}}`GAUGE_KEYSTROKE` | `KEY_GAUGE_KEYSTROKE` | N/A | Enables a keystroke to be sent to a gauge that is in focus. The keystrokes can only be in the range 0 to 9, A to Z, and the four keys: plus, minus, comma and period. This is typically used to allow some keyboard entry to a complex device such as a GPS to enter such things as ICAO codes using the keyboard, rather than turning dials. |
| {{< anchor id="GYRO_DRIFT_DEC" />}}`GYRO_DRIFT_DEC` | `KEY_GYRO_DRIFT_DEC` | N/A | Decrements heading indicator. |
| {{< anchor id="GYRO_DRIFT_INC" />}}`GYRO_DRIFT_INC` | `KEY_GYRO_DRIFT_INC` | N/A | Increments heading indicator. |
| {{< anchor id="GYRO_DRIFT_SET" />}}`GYRO_DRIFT_SET` | `KEY_GYRO_DRIFT_SET` | [0]: Drift angle (degrees) | Sets heading indicator drift angle (degrees). |
| {{< anchor id="GYRO_DRIFT_SET_EX1" />}}`GYRO_DRIFT_SET_EX1` | `KEY_GYRO_DRIFT_SET_EX1` | [0]: Drift angle (0 - 16383) | Sets heading indicator drift angle (16K). |
| {{< anchor id="HEADING_GYRO_SET" />}}`HEADING_GYRO_SET` | `KEY_HEADING_GYRO_SET` | N/A | Sets heading indicator to 0 drift error. |
| {{< anchor id="INDUCTOR_COMPASS_REF_INC" />}}`INDUCTOR_COMPASS_REF_INC` | `KEY_INDUCTOR_COMPASS_REF_INC` | N/A |  |
| {{< anchor id="INDUCTOR_COMPASS_REF_DEC" />}}`INDUCTOR_COMPASS_REF_DEC` | `KEY_INDUCTOR_COMPASS_REF_DEC` | N/A |  |
| {{< anchor id="KOHLSMAN_INC" />}}`KOHLSMAN_INC` | `KEY_KOHLSMAN_INC` | N/A | Increments altimeter setting. |
| {{< anchor id="KOHLSMAN_DEC" />}}`KOHLSMAN_DEC` | `KEY_KOHLSMAN_DEC` | N/A | Decrements altimeter setting. |
| {{< anchor id="KOHLSMAN_SET" />}}`KOHLSMAN_SET` | `KEY_KOHLSMAN_SET` | [0]: Value to set<span></span>[1]: Altimeter index | Sets altimeter setting (Millibars * 16). |
| {{< anchor id="RESET_G_FORCE_INDICATOR" />}}`RESET_G_FORCE_INDICATOR` | `KEY_RESET_G_FORCE_INDICATOR` | N/A | Resets max/min indicated {{< glossterm >}}g{{< /glossterm >}} force to 1.0. |
| {{< anchor id="RESET_MAX_RPM_INDICATOR" />}}`RESET_MAX_RPM_INDICATOR` | `KEY_RESET_MAX_RPM_INDICATOR` | N/A | Reset max indicated engine rpm to 0. |
| {{< anchor id="ATTITUDE_CAGE_BUTTON" />}}`ATTITUDE_CAGE_BUTTON` | `KEY_TOGGLE_ATTITUDE_CAGE` | N/A | Cages attitude indicator at 0 pitch and bank. |
| {{< anchor id="TOGGLE_ICS" />}}`TOGGLE_ICS` | `KEY_TOGGLE_ICS` | N/A | Toggle the InterCom system on the audio panel. |
| {{< anchor id="TOGGLE_SPEAKER" />}}`TOGGLE_SPEAKER` | `KEY_TOGGLE_SPEAKER` | N/A |  |
| {{< anchor id="TOGGLE_TURN_INDICATOR_SWITCH" />}}`TOGGLE_TURN_INDICATOR_SWITCH` | `KEY_TOGGLE_TURN_INDICATOR_SWITCH` | N/A | Turn the turn indicator on or off. |
| {{< anchor id="TOGGLE_VARIOMETER_SWITCH" />}}`TOGGLE_VARIOMETER_SWITCH` | `KEY_TOGGLE_VARIOMETER_SWITCH` | N/A | Turn the variometer on or off. |
| {{< anchor id="TRUE_AIRSPEED_CAL_DEC" />}}`TRUE_AIRSPEED_CAL_DEC` | `KEY_TRUE_AIRSPEED_CALIBRATE_DEC` | N/A | Decrements airspeed indicators true airspeed reference card. |
| {{< anchor id="TRUE_AIRSPEED_CAL_INC" />}}`TRUE_AIRSPEED_CAL_INC` | `KEY_TRUE_AIRSPEED_CALIBRATE_INC` | N/A | Increments airspeed indicators true airspeed reference card. |
| {{< anchor id="TRUE_AIRSPEED_CAL_SET" />}}`TRUE_AIRSPEED_CAL_SET` | `KEY_TRUE_AIRSPEED_CAL_SET` | [0]: Degrees | Sets airspeed indicators true airspeed reference card (degrees, where 0 is standard sea level conditions). |
| {{< anchor id="VARIOMETER_SOUND_TOGGLE" />}}<span class="obsolete">`VARIOMETER_SOUND_TOGGLE`</span> | `KEY_VARIOMETER_SOUND_TOGGLE` | N/A | Toggle the variometer sounds between on (1) and off (0).<span></span>***No longer used in the simulation.*** |

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### ATC

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| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="ATC" />}}`ATC` | `KEY_ATC` | N/A | Activates the {{< glossterm >}}atc{{< /glossterm >}} window. |
| {{< anchor id="ATC_MENU_CLOSE" />}}`ATC_MENU_CLOSE` | `KEY_ATC_MENU_CLOSE` | N/A | Closes the {{< glossterm >}}atc{{< /glossterm >}} menu screen. |
| {{< anchor id="ATC_MENU_OPEN" />}}`ATC_MENU_OPEN` | `KEY_ATC_MENU_OPEN` | N/A | Opens the {{< glossterm >}}atc{{< /glossterm >}} menu screen. |
| {{< anchor id="ATC_MENU_0" />}}`ATC_MENU_0`<span></span>{{< anchor id="ATC_MENU_1" />}}`ATC_MENU_1`<span></span>{{< anchor id="ATC_MENU_2" />}}`ATC_MENU_2`<span></span>{{< anchor id="ATC_MENU_3" />}}`ATC_MENU_3`<span></span>{{< anchor id="ATC_MENU_4" />}}`ATC_MENU_4`<span></span>{{< anchor id="ATC_MENU_5" />}}`ATC_MENU_5`<span></span>{{< anchor id="ATC_MENU_6" />}}`ATC_MENU_6`<span></span>{{< anchor id="ATC_MENU_7" />}}`ATC_MENU_7`<span></span>{{< anchor id="ATC_MENU_8" />}}`ATC_MENU_8`<span></span>{{< anchor id="ATC_MENU_9" />}}`ATC_MENU_9` | `KEY_ATC_MENU_0`<span></span>`KEY_ATC_MENU_1`<span></span>`KEY_ATC_MENU_2`<span></span>`KEY_ATC_MENU_3`<span></span>`KEY_ATC_MENU_4`<span></span>`KEY_ATC_MENU_5`<span></span>`KEY_ATC_MENU_6`<span></span>`KEY_ATC_MENU_7`<span></span>`KEY_ATC_MENU_8`<span></span>`KEY_ATC_MENU_9` | N/A | Selects {{< glossterm >}}atc{{< /glossterm >}} option 0 - 9. |

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### EGT

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| Key Name | Event ID | Parameters | Description |
|---|---|---|---|
| {{< anchor id="EGT" />}}`EGT` | `KEY_EGT` |  | Selects {{< glossterm >}}egt{{< /glossterm >}} bug for +/-. Follow by `SELECT_1`, `SELECT_2`, `SELECT_3`, or `SELECT_4` to target the appropriate bug. |
| {{< anchor id="EGT_DEC" />}}`EGT_DEC` | `KEY_EGT_DEC` | N/A | Decrements all {{< glossterm >}}egt{{< /glossterm >}} bugs. |
| {{< anchor id="EGT_INC" />}}`EGT_INC` | `KEY_EGT_INC` | N/A | Increments all {{< glossterm >}}egt{{< /glossterm >}} bugs. |
| {{< anchor id="EGT_SET" />}}`EGT_SET` | `KEY_EGT_SET` | [0]: Bug value (0 to 32768) | Sets all {{< glossterm >}}egt{{< /glossterm >}} bugs to the given value. Input will be normalised between 0 and 1. |
| {{< anchor id="EGT1_DEC" />}}`EGT1_DEC`<span></span>{{< anchor id="EGT2_DEC" />}}`EGT2_DEC`<span></span>{{< anchor id="EGT3_DEC" />}}`EGT3_DEC`<span></span>{{< anchor id="EGT4_DEC" />}}`EGT4_DEC` | `KEY_EGT1_DEC`<span></span>`KEY_EGT2_DEC`<span></span>`KEY_EGT3_DEC`<span></span>`KEY_EGT4_DEC` | N/A | Decrements the specific {{< glossterm >}}egt{{< /glossterm >}} 1/2/3/4 bug value. |
| {{< anchor id="EGT1_INC" />}}`EGT1_INC`<span></span>{{< anchor id="EGT2_INC" />}}`EGT2_INC`<span></span>{{< anchor id="EGT3_INC" />}}`EGT3_INC`<span></span>{{< anchor id="EGT4_INC" />}}`EGT4_INC` | `KEY_EGT1_INC`<span></span>`KEY_EGT2_INC`<span></span>`KEY_EGT3_INC`<span></span>`KEY_EGT4_INC` | N/A | Increments the specific {{< glossterm >}}egt{{< /glossterm >}} 1/2/3/4 bug value. |
| {{< anchor id="EGT1_SET" />}}`EGT1_SET`<span></span>{{< anchor id="EGT2_SET" />}}`EGT2_SET`<span></span>{{< anchor id="EGT3_SET" />}}`EGT3_SET`<span></span>{{< anchor id="EGT4_SET" />}}`EGT4_SET` | `KEY_EGT1_SET`<span></span>`KEY_EGT2_SET`<span></span>`KEY_EGT3_SET`<span></span>`KEY_EGT4_SET` | [0]: Bug value (0 to 32768) | Sets the specific {{< glossterm >}}egt{{< /glossterm >}} 1/2/3/4 bug value. |

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