# Firefighting

If you want to use your own bambi bucket for the firefighting, you need to set and read a number of local variables. For airplanes, you need to set up the liquid dropping system (2024 only).

## Helicopters

### Lvars to set

<table data-header-hidden data-full-width="false"><thead><tr><th width="326.79998779296875">LVar</th><th>Description</th></tr></thead><tbody><tr><td><strong>MMH_COMPATIBILITY_FIREFIGHTING</strong></td><td>Always set to 1</td></tr><tr><td><strong>MMH_BAMBI_READY</strong></td><td>Set to 1 when the bucket is ready to be used (i.e. slung under the helicopter)</td></tr><tr><td><strong>MMH_BAMBI_HEIGHT</strong></td><td>Set this to the height AGL (feet) at which the bucket is fully submerged<br>(0 = using default value of 50)</td></tr></tbody></table>

### Lvars to read

<table data-header-hidden data-full-width="false"><thead><tr><th width="326.79998779296875">LVar</th><th>Description</th></tr></thead><tbody><tr><td><strong>MMH_BAMBI_FULL</strong></td><td><p>Use this to show/hide water inside of the bucket.</p><p>0 = bucket empty<br>100 = bucket full</p></td></tr><tr><td><strong>MMH_WATER_RELEASE</strong></td><td><p>Use this to drive when your water drop vfx is active.</p><p>0 = No water being dropped<br>100 = Water being dropped</p></td></tr></tbody></table>

## Airplanes

For MSFS2024, you can make aircraft compatible with the mission hub by setting up the native water drop system. We monitor the following simvars:

* LIQUID DROPPING SCOOP OPEN VALUE
* LIQUID DROPPING TANK TOTAL WEIGHT
* LIQUID DROPPING TANK TOTAL CAPACITY
* LIQUID DROPPING TOTAL DROPPED FLOW

See: <https://docs.flightsimulator.com/msfs2024/html/5_Content_Configuration/Careers/Aerial_Firefighting.htm#simvars>


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