# Takeoff Trigger

Triggers when the aircraft wheels leave the ground.

### Attributes

<table data-header-hidden data-full-width="false"><thead><tr><th width="109.99993896484375">Attribute</th><th>Description</th></tr></thead><tbody><tr><td><strong>Active On Start</strong></td><td><strong>Enabled:</strong> the trigger will start listening for takeoffs as soon as the missions starts<br><strong>Disabled:</strong> you need to activate this trigger during the mission</td></tr><tr><td><strong>Fire Once</strong></td><td><strong>Enabled:</strong> the trigger will deactivate after the first takeoff it sees<br><strong>Disabled:</strong> the trigger will keep firing for each takeoff, until it is deactivated</td></tr><tr><td><strong>Radius</strong></td><td>Radius (meters) of the area in which the takeoff trigger is active</td></tr></tbody></table>

### Actions

<table data-header-hidden><thead><tr><th width="110">Action</th><th>Description</th></tr></thead><tbody><tr><td><strong>Activate</strong></td><td>The trigger start listening for takeoffs</td></tr><tr><td><strong>Deactivate</strong></td><td>The trigger will stop listening for takeoffs</td></tr></tbody></table>

### Events

The events are only fired when the trigger is active

<table data-header-hidden><thead><tr><th width="109.99993896484375">Event</th><th>Description</th></tr></thead><tbody><tr><td><strong>Takeoff</strong></td><td>Fires when the aircraft goes from wheels on ground (or ship) to flying and is inside the trigger area.</td></tr></tbody></table>

## See also

[Landing Trigger](/miltech-mission-hub/detailed-documentation/map-objects/landing-trigger.md)

[Parking Trigger](/miltech-mission-hub/detailed-documentation/map-objects/parking-trigger.md)


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