Move PX4 Guide source into /docs (#24490)

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---------

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

docs/uk/sensor/airspeed.md

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+# Датчики швидкості польоту
+
+Airspeed sensors are _highly recommended_ for fixed-wing and VTOL frames.
+Це важливо, туму що автопілот не має інших засобів для виявлення звалювання.
+Так як швидкість польоту літака відносно повітря гарантує підіймальну силу, а не швидкість відносно землі!
+
+![Digital airspeed sensor](../../assets/hardware/sensors/airspeed/digital_airspeed_sensor.jpg)
+
+## Варіанти устаткування
+
+Рекомендовані цифрові сенсори швидкості в повітрі включають:
+
+- Based on [Pitot tube](https://en.wikipedia.org/wiki/Pitot_tube)
+  - MEAS Spec series (e.g. [MS4525DO](https://www.te.com/usa-en/product-CAT-BLPS0002.html), [MS5525](https://www.te.com/usa-en/product-CAT-BLPS0003.html))
+    - [mRo I2C Airspeed Sensor JST-GH MS4525DO](https://store.mrobotics.io/mRo-I2C-Airspeed-Sensor-JST-GH-p/m10030a.htm) (mRo store)
+    - [Digital Differential Airspeed Sensor Kit](https://store-drotek.com/793-digital-differential-airspeed-sensor-kit-.html) (Drotek).
+  - [Holybro Digital Air Speed Sensor - MS4525DO](https://holybro.com/collections/sensors/products/digital-air-speed-sensor-ms4525do)
+  - [Holybro Digital Air Speed Sensor - MS5525DSO](https://holybro.com/collections/sensors/products/digital-air-speed-sensor-ms5525dso)
+  - [Holybro High Precision DroneCAN Airspeed Sensor - DLVR](https://holybro.com/collections/sensors/products/high-precision-dronecan-airspeed-sensor-dlvr)
+  - [RaccoonLab Cyphal/CAN and DroneCAN Airspeed Sensor](https://raccoonlab.co/tproduct/360882105-652259850171-cyphal-and-dronecan-airspeed-v2)
+  - [Sensirion SDP3x Airspeed Sensor Kit](https://store-drotek.com/793-digital-differential-airspeed-sensor-kit-.html)
+- Based on [Venturi effect](https://en.wikipedia.org/wiki/Venturi_effect)
+  - [TFSLOT](airspeed_tfslot.md) Venturi effect airspeed sensor.
+
+Усі зазначені вище сенсори підключені через I2C bus/port.
+
+::: info
+
+Additionally, the [Avionics Anonymous Air Data Computer](https://www.tindie.com/products/avionicsanonymous/uavcan-air-data-computer-airspeed-sensor/) can be connected to the CAN bus to determine not only high-accuracy airspeed, but also true static pressure and air temperature via onboard barometer and an OAT probe.
+
+:::
+
+## Налаштування
+
+### Увімкнення датчиків швидкості у повітрі
+
+Драйвери датчика швидкості в польоті не запускаються автоматично.
+Enable each type using its [corresponding parameter](../advanced_config/parameters.md):
+
+- **Sensirion SDP3X:** [SENS_EN_SDP3X](../advanced_config/parameter_reference.md#SENS_EN_SDP3X)
+- **TE MS4525:** [SENS_EN_MS4525DO](../advanced_config/parameter_reference.md#SENS_EN_MS4525DO)
+- **TE MS5525:** [SENS_EN_MS5525DS](../advanced_config/parameter_reference.md#SENS_EN_MS5525DS)
+- **Eagle Tree airspeed sensor:** [SENS_EN_ETSASPD](../advanced_config/parameter_reference.md#SENS_EN_ETSASPD)
+
+You should also check [ASPD_PRIMARY](../advanced_config/parameter_reference.md#ASPD_PRIMARY) is `1` (see next section - this is the default).
+
+### Множинні датчики швидкості польоту
+
+:::warning
+Експериментальні налаштування
+Using multiple airspeed sensors is experimental.
+:::
+
+If you have multiple airspeed sensors then you can select which sensor is _preferred_ as the primary source using [ASPD_PRIMARY](../advanced_config/parameter_reference.md#ASPD_PRIMARY), where `1`, `2` and `3` reflect the order in which the airspeed sensors were started:
+
+- `0`: Synthetic airspeed estimation (groundspeed minus windspeed)
+- `1`: First airspeed sensor started (default)
+- `2`: Second airspeed sensor started
+- `3`: Third airspeed sensor started
+
+The airspeed selector validates the indicated sensor _first_ and only falls back to other sensors if the indicated sensor fails airspeed checks ([ASPD_DO_CHECKS](../advanced_config/parameter_reference.md#ASPD_DO_CHECKS) is used to configure the checks).
+
+The selected sensor is then used to [supply data to the estimator (EKF2)](../advanced_config/tuning_the_ecl_ekf.md#airspeed) and the controllers.
+
+### Налаштування датчика
+
+Крім активації датчика, часто не потрібна конфігурація, специфічна для датчика.
+If it is needed, it should be covered in the appropriate sensor page (for example [TFSLOT > Configuration](airspeed_tfslot.md#configuration)).
+
+Конкретна конфігурація для датчиків, які не мають окремої сторінки, перерахована нижче:
+
+- **Sensirion SDP3X:** [CAL_AIR_CMODEL](../advanced_config/parameter_reference.md#CAL_AIR_CMODEL) (provides overview of required settings), [CAL_AIR_TUBED_MM](../advanced_config/parameter_reference.md#CAL_AIR_TUBED_MM), [CAL_AIR_TUBELEN](../advanced_config/parameter_reference.md#CAL_AIR_TUBELEN).
+
+## Калібрування
+
+Airspeed sensors should be calibrated by following the instructions: [Basic Configuration > Airspeed](../config/airspeed.md).
+
+## Дивіться також
+
+- [Using PX4's Navigation Filter (EKF2) > Airspeed](../advanced_config/tuning_the_ecl_ekf.md#airspeed)
+- [Airspeed drivers](https://github.com/PX4/PX4-Autopilot/tree/main/src/drivers/differential_pressure) (source code)
+- [VTOL Without an Airspeed Sensor](../config_vtol/vtol_without_airspeed_sensor.md)