> For the complete documentation index, see [llms.txt](https://manual-2.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual-2.karamba3d.com/3-in-depth-component-reference/3.6-results/3.6.5-reaction-forces.md).

# 3.7.6: Reaction Forces 🔷

![Fig. 3.7.6.1: Reaction forces and moments for two load-cases](/files/-Mk77N8woMyZF3_OGtIh)

The **“Reaction Forces”**-component gives access to the support forces and moments. It expects a model at its input-plug and returns via **“RF”** and **“RM”** a list containing reaction forces in $$kN$$ and reaction moments in $$kN m$$ as three dimensional vectors.

Specific supports can be selected via the **"Pos|Inds"**-input: either specify node indexes or positions. In case no input is provided, results for all supports will be output.

The input-plug **“LCase”** sets the load-case index for which the results shall be output. All support reactions are ordered in such a way that the indexes of the nodes they attach to form an ascending sequence. In case of locally oriented supports, reaction forces refer to the local coordinate system. **“Pos”** returns the position of the supports in the same order as the results. **“SumRF”** and **“SumRM”** offer the possibility to check the resultant reaction moments and forces of each load-case.

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