> For the complete documentation index, see [llms.txt](https://manual.fotokite.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.fotokite.com/system-profile/kite-flight-unit.md).

# Kite (Flight Unit)

<figure><img src="/files/KMVKHFGOXHSmjpxWsM79" alt=""><figcaption></figcaption></figure>

The Kite is an actively tethered sUAS (small Unmanned Aircraft System) with a six motor configuration designed to reliably operate in a multitude of environmental and weather parameters.

* The Kite can reach a maximum flight height of 150 ft (45 m) from the Ground Station.
* If the Kite cannot acquire a GPS lock, then the maximum altitude is limited to 25m (80 feet).
* The Kite may adjust its height automatically, if high wind conditions arise and its relative position to the Ground-Station exits the safety zone.
* The Kite is designed to sustain stable flight in the event of a single-motor failure and automatically enters a controlled descent. Learn more about 5 Motors Landing in Failure Modes.
* The Kite is equipped with an internal backup battery that allows it to safely perform a Safety Landing during an unexpected power loss on the ground or critical tether failure.
* Located on the top of the flight unit is the Kite Reset Button. This button provides the user the ability to turn off the system if running on the backup battery after a Safety Landing.
* During flight, navigation lights are emitted from the bottom and top of the Kite to help with orientation and visibility.
  * Port - Red LED
  * Starboard - Green LED
* Above an altitude of 10 ft (3 m), a strobe begins to emit from the top of the Kite for increased visibility by passing air traffic.

**Kite Frame LED Indicators**

| Color       | Style | Meaning                            |
| ----------- | ----- | ---------------------------------- |
| White       | Solid | Turning On                         |
| Red / Green | Solid | Flying                             |
| Yellow      | Solid | Running on Backup Battery          |
| Red         | Solid | Safety Landing                     |
| Pink / Blue | Solid | Safety Landing - Autopilot problem |

**Kite Tether Status LED Indicator**

| Color | Style | Meaning            |
| ----- | ----- | ------------------ |
| Green | Solid | Tether voltage On. |

**Kite Power Comms Status LED Indicator**

| Color | Style    | Meaning                                   |
| ----- | -------- | ----------------------------------------- |
| Blue  | Flashing | Communication OK                          |
| Red   | Flashing | Communication not OK                      |
| Green | Flashing | In Bootloader - Firmware reflash required |


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