# How Can I use ground steering when Takeoff Mode

**URL:** <https://discuss.px4.io/t/how-can-i-use-ground-steering-when-takeoff-mode/10155>\
**Category:** PX4 Autopilot\
**Created:** [March 24, 2019, 7:21pm UTC](https://discuss.px4.io/t/how-can-i-use-ground-steering-when-takeoff-mode/10155 "2019-03-24T19:21:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kadir\_Dogan](https://discuss.px4.io/user_avatar/discuss.px4.io/kadir_dogan/32/4867_2.png) [@Kadir\_Dogan](https://discuss.px4.io/u/Kadir_Dogan)\
**Post date:** [March 24, 2019, 7:21pm UTC](https://discuss.px4.io/t/how-can-i-use-ground-steering-when-takeoff-mode/10155/1 "2019-03-24T19:21:37Z")

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Hi. I have a fixed wing aircraft and I’m trying to fly fully autonomous mode. First, There is a landing gear servo in my aircraft and I’m using Qgroundcontroller with Px4 firmware. I have tried to use takeoff mode and The aircraft is not control the landing gear servo or rudder in the mission. It’s going to straighforward and It’s too risky for takeoff. How can I command the pixhawk for using landing gear servo or rudder when takeoff mission is enabled?

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**Author:** ![JulianOes](https://discuss.px4.io/user_avatar/discuss.px4.io/julianoes/32/30_2.png) [@JulianOes](https://discuss.px4.io/u/JulianOes)\
**Post date:** [March 25, 2019, 1:02pm UTC](https://discuss.px4.io/t/how-can-i-use-ground-steering-when-takeoff-mode/10155/2 "2019-03-25T13:02:31Z")

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You can try this parameter:  
[https://dev.px4.io/en/advanced/parameter\_reference.html#RWTO\_TKOFF](https://dev.px4.io/en/advanced/parameter_reference.html#RWTO_TKOFF)

And check these docs: [https://docs.px4.io/en/flight\_modes/takeoff.html](https://docs.px4.io/en/flight_modes/takeoff.html)

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**Author:** ![Kadir\_Dogan](https://discuss.px4.io/user_avatar/discuss.px4.io/kadir_dogan/32/4867_2.png) [@Kadir\_Dogan](https://discuss.px4.io/u/Kadir_Dogan)\
**Post date:** [March 25, 2019, 1:16pm UTC](https://discuss.px4.io/t/how-can-i-use-ground-steering-when-takeoff-mode/10155/3 "2019-03-25T13:16:37Z")

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Hi. I have tried this parameters but It’s not working properly. It’s not using wheel servo or rudder when takeoff mode. UAV goes always straightforward. I’m using Px4 firmware in qgroundcontroller