> For the complete documentation index, see [llms.txt](https://arcsky.gitbook.io/x55-public-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/system-overview.md).

# System Overview

## Module Overview

![X55 Module Overview
](/files/hrBFr1fwCKY8qdoRzMYc)

## Front View

![](/files/xCp3FY3GtwCXY6csivpY)

## Back View

![](/files/1K8lPgIWDvNHyzCM85YT)

## Right Side View

![](/files/Ah1MZ7ejKAUzypG2Z7KD)

## Left Side View

![](/files/FHdLSy8y1dQ9odNaReox)

## Top View

![](/files/K0P9MBRxKPdm03gWNdHu)

## Bottom View

![](/files/K0AWpTGlsbLvHagpxFpW)

## Battery Module

<img src="/files/3o1EpzQPLRpshg06QhwZ" alt="" width="563">

## **X55 Serial Number**

The X55 manufacturer serial number is located beside the “FC Access” Panel.

## **Recommended land voltage**

We recommend landing the X55 at 44V, to give the pilot plenty of headroom in case of emergency, and also for better battery health.

{% hint style="danger" %}
This landing voltage is based on the recommended X55 batteries (2x Tattu 12S 16Ah batteries), and the landing voltage might vary with other types of batteries.
{% endhint %}