# X55 Public Knowledge Base

## X55 Public Knowledge Base

- [Introduction](https://arcsky.gitbook.io/x55-public-knowledge-base/introduction.md)
- [Quick Start Guide](https://arcsky.gitbook.io/x55-public-knowledge-base/quick-start-guide.md)
- [Aircraft Description & Functions](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions.md)
- [System Overview](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/system-overview.md)
- [Flight Modes](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/flight-modes.md)
- [Failsafe](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/failsafe.md): The X55 has a number of failsafe mechanisms to ease X55 recovery/prevent complete loss in the event that the X55 control is lost. The main failsafe topics are listed below. The failsafe triggers and a
- [Herelink Controller](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/herelink-controller.md)
- [Flight Control Software](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/flight-control-software.md): Flight control software is used with the X55 for mission planning, to update parameters, and to adjust settings of the aircraft.
- [QGC (QGroundControl) and Arcsky Control](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/flight-control-software/qgc-qgroundcontrol-and-arcsky-control.md)
- [Mission Planner (PC only)](https://arcsky.gitbook.io/x55-public-knowledge-base/aircraft-description-and-functions/flight-control-software/mission-planner-pc-only.md)
- [Setup and Operation](https://arcsky.gitbook.io/x55-public-knowledge-base/setup-and-operation.md)
- [Battery Module Setup](https://arcsky.gitbook.io/x55-public-knowledge-base/setup-and-operation/battery-module-setup.md)
- [X55 Setup Guide](https://arcsky.gitbook.io/x55-public-knowledge-base/setup-and-operation/x55-setup-guide.md)
- [Emergency Procedures](https://arcsky.gitbook.io/x55-public-knowledge-base/setup-and-operation/emergency-procedures.md): This section outlines the recommended procedures the pilot has to follow during an emergency situation. The pilot has to be familiar with the procedures and ready to apply these procedures based on th
- [Accessories Integration](https://arcsky.gitbook.io/x55-public-knowledge-base/accessories-integration.md)
- [RTK Base Setup](https://arcsky.gitbook.io/x55-public-knowledge-base/accessories-integration/rtk-base-setup.md): RTK-base technology provides a more accurate position estimate than the regular GPS systems onboard the X55. Its ideal accuracy can reach up to cm-level, which greatly improves the precision of flight
- [LW20 Rangefinder Setup](https://arcsky.gitbook.io/x55-public-knowledge-base/accessories-integration/lw20-rangefinder-setup.md): Rangefinders allow more precise altitude tracking and terrain following. To install the rangefinder, please follow the guide below.
- [Bottom Mount Battery Module](https://arcsky.gitbook.io/x55-public-knowledge-base/accessories-integration/bottom-mount-battery-module.md): This accessory allows the user to mount the payload on the top side of the X55 for a full 360 sky view. To install this accessory to the X55, follow the steps below:
- [Maintenance](https://arcsky.gitbook.io/x55-public-knowledge-base/maintenance.md)
- [Appendix](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix.md)
- [FAA Registration & Remote ID (US customers only)](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/faa-registration-and-remote-id-us-customers-only.md)
- [Precautions and Best Practices](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/precautions-and-best-practices.md)
- [Pre/Post-flight Checklist](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/pre-post-flight-checklist.md)
- [Technical Dimensions](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/technical-dimensions.md)
- [Performance Specifications](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/performance-specifications.md)
- [Electrical Interfaces](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/electrical-interfaces.md)
- [Removing/Replacing Propellers](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/removing-replacing-propellers.md)
- [Download Offline Maps via QGC (Herelink Controller)](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/download-offline-maps-via-qgc-herelink-controller.md)
- [Charging Flight Batteries](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/charging-flight-batteries.md)
- [Terrain Following Using SRTM Method](https://arcsky.gitbook.io/x55-public-knowledge-base/appendix/terrain-following-using-srtm-method.md)