# Return-to-Launch (RTL) on High Wind Indication

**URL:** <https://discuss.cubepilot.org/t/return-to-launch-rtl-on-high-wind-indication/14058>\
**Category:** Multirotor\
**Created:** [4 September 2024 09:30 UTC](https://discuss.cubepilot.org/t/return-to-launch-rtl-on-high-wind-indication/14058 "2024-09-04T09:30:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![surya1](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/s/6a8cbe/32.png) [@surya1](https://discuss.cubepilot.org/u/surya1)\
**Post date:** [4 September 2024 09:30 UTC](https://discuss.cubepilot.org/t/return-to-launch-rtl-on-high-wind-indication/14058/1 "2024-09-04T09:30:13Z")

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We are attempting to integrate the **FT743-SM** wind sensor to detect wind speed for our quadcopter. The sensor communicates via serial interface or CAN. Our application involves setting the Return-to-Launch (RTL) function to activate during high wind conditions. Currently, we are using the Pixhawk Cube Orange+ for our project. Could someone please assist us with this integration.

Thank you.

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**Author:** ![xfacta](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/x/5f8ce5/32.png) [@xfacta](https://discuss.cubepilot.org/u/xfacta)\
**Post date:** [21 December 2024 14:33 UTC](https://discuss.cubepilot.org/t/return-to-launch-rtl-on-high-wind-indication/14058/2 "2024-12-21T14:33:39Z")

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In Arducopter you can do the wind estimation calibration procedure and you dont need any external sensor.  
You’d probably be able to check wind speed versus ground speed in a LUA script and trigger RTL.

There is wind estimate, ground speed, air speed and much more  
[https://ardupilot.org/copter/docs/common-lua-scripts.html#ahrs-ahrs](https://ardupilot.org/copter/docs/common-lua-scripts.html#ahrs-ahrs)

Plus if you set up the wind estimation, you can use the dead reckoning script for when GPS reception disappears.