> For the complete documentation index, see [llms.txt](https://docs.miltechsimulations.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.miltechsimulations.com/miltech-mission-hub/developer-sdk/activities-setup/search-and-rescue.md).

# Search and Rescue

If you want to make your helicopter compatible with search and rescue, you need to create an animated hoist with a rescuee / victim model. The hoist should extend about 35 feet below the helicopter. To make it work, you need to monitor and set a number of local variables.

### 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_SAR</strong></td><td>Always set to 1</td></tr><tr><td><strong>MMH_HOIST_POSITION</strong></td><td>0 = At top, not extended<br>100 = At bottom, fully extended</td></tr><tr><td><strong>MMH_SAR_ACFT_RESCUEE</strong></td><td>Set to 1 when the rescuee / victim is shown in the cockpit (i.e. rescue completed). <br><br>You need to do this logic yourself, basically when hoist is at top and rescuee is picked, move the rescuee to the cockpit and set the lvar to signal mission success.</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_RESCUEE_PICKED</strong></td><td>1 = Show rescuee / victim attached to the hoist</td></tr><tr><td><strong>MMH_SAR_MISSION_ACTIVE</strong></td><td>1 = SAR mission is active</td></tr></tbody></table>


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