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Move PX4 Guide source into /docs (#24490)

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* Add vitepress tree

* Update existing workflows so they dont trigger on changes in the docs path

* Add nojekyll, package.json, LICENCE etc

* Add crowdin docs upload/download scripts

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* Used docs prefix for docs workflows

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runs on a beefy server for faster builds

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: don't run build action for docs or ci changes

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: update runners

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* Add docs/en

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---------

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
Co-authored-by: Ramon Roche <mrpollo@gmail.com>
This commit is contained in:
Hamish Willee
2025-03-13 16:08:27 +11:00
committed by GitHub
co-authored by Ramon Roche
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docs/en/frames_helicopter/index.md
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# Helicopters
<LinkedBadge type="warning" text="Experimental" url="../airframes/#experimental-vehicles"/>
:::warning
Support for helicopters is [experimental](../airframes/index.md#experimental-vehicles).
Maintainer volunteers, [contribution](../contribute/index.md) of new features, new frame configurations, or other improvements would all be very welcome!
Issues include:
- Limited support for different types of helicopters.
For example, PX4 does not support helicopters with coaxial or dual rotor types, and features such as RPM governor and autorotation.
:::
<!-- image here please of PX4 helicopter -->
## Helicopter Types
PX4 supports helicopters with a single main rotor with a swash-plate controlled by up to 4 swash-plate servos, and:
- a mechanically uncoupled tail rotor driven by an ESC, or
- a mechanically coupled tail controlled by a servo on the tail motor.
The allowed flight operations and [flight modes](../flight_modes_mc/index.md) are the same as for multicopter.
Note however that (at the time of writing) 3D flying with negative thrust is not supported in autonomous/guided modes.
## Assembly
Assembly of the core autopilot components are similar for all frames.
This is covered in [Basic Assembly](../assembly/index.md).
Helicopter-specific assembly consists mostly of connecting and powering the motors and swash plate servos.
::: info
Note that the flight controller cannot power motors and servos (only GPS module, RC receiver, and low power telemetry modules can be powered from Pixhawk flight controllers).
Generally a power distribution board (PDB) is used to power motors, and a separate (or integrated) battery elimination circuit (BEC) is used to power each of the servos.
:::
## Configuration
Helicopter configuration and setup is covered in:
- [Helicopter configuration](../config_heli/index.md): Vehicle frame selection, actuator configuration and testing, and tuning.
- [Standard Configuration](../config/index.md): The common configuration and calibration steps for most frames.
This includes configuration/calibration of core components such as compass and gyroscope, setting flight mode mappings on a remote control, and safety settings.
## Frame Builds
None available.