> For the complete documentation index, see [llms.txt](https://docs.freeflysystems.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.freeflysystems.com/flying-sun/procedures/check-lists.md).

# Check Lists

### Setup Checklist:&#x20;

* [ ] FS500 aircraft → Install SL8, Air Unit.
* [ ] XT90 cable → connect to tether Air Unit
* [ ] Place aircraft in a takeoff area with at least a 5m/16 feet radius of clear space.
* [ ] Unfold aircraft and latch booms, remove proptectors.
* [ ] Connect AC power to tether unit, don’t turn on yet.
* [ ] It is suggested that the pilot wears sunglasses or has them at the ready.

### Preflight Checklist:&#x20;

* [ ] Pilot pro → booted and connected&#x20;
* [ ] Tether strain relief clip → attached to Astro
* [ ] Tether cable → constrained out of props
* [ ] XT60 plugged into to tether air unit.
* [ ] Tether cable → extra 3m/\~10ft spooled out&#x20;
* [ ] Astro powered on via single SL8 battery
* [ ] Pilot pro → D2 dial set to 0%
* [ ] Tether ground unit → check AC power is supplied
* [ ] Tether ground unit → activate blue breaker switch
* [ ] Tether ground unit → flip battery backup switch on
* [ ] Pilot pro → Flying Sun app → Enable high voltage
* [ ] Flying Sun app → confirm high voltage on
*

**\*\*\*DO NOT TOUCH THE TETHER GROUND UNIT OR CABLE WHILE HIGH VOLTAGE IS ACTIVE. 750 VOLTS CAN KILL YOU\*\*\***

* [ ] Pilot pro → D2 dial → turn on, confirm lights are working
* [ ] Pilot pro → D2 dial → turn off
* [ ] Pilot pro → AMC → Ensure Astro is in Position mode, ready to arm
* [ ] Take off

### Landing/Post Flight Checklist:&#x20;

* [ ] Astro land in position mode&#x20;
* [ ] Pilot pro → D2 dial set to 0%
* [ ] Pilot pro → Flying Sun app → disable high voltage
* [ ] Flying Sun app → confirm high voltage off
* [ ] Astro → turn off SL8 → disconnect tether cable
* [ ] Pilot pro → tether app → hold takeup button → Cable will retract
* [ ] Tether Ground Unit → Backup power switch off
* [ ] Tether Ground Unit → Blue breaker off
* [ ] Pack up&#x20;

<br>


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