# Motor Test letters for octo quad H

**URL:** <https://discuss.cubepilot.org/t/motor-test-letters-for-octo-quad-h/8374>\
**Category:** Mission Planner\
**Created:** [16 February 2022 09:03 UTC](https://discuss.cubepilot.org/t/motor-test-letters-for-octo-quad-h/8374 "2022-02-16T09:03:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![crisangel](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/c/7ea924/32.png) [@crisangel](https://discuss.cubepilot.org/u/crisangel)\
**Post date:** [16 February 2022 09:03 UTC](https://discuss.cubepilot.org/t/motor-test-letters-for-octo-quad-h/8374/1 "2022-02-16T09:03:39Z")

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Hello,

I have built an octo quad H and I was wondering if the letters in the Motor Test tab on MP are the same as in the octo quad X? It seems that octo quad H motor spin opposite of octo quad X but I can’t find any documentation to confirm the letters for octo quad H.

[https://ardupilot.org/copter/docs/connect-escs-and-motors.html#connect-escs-and-motors](https://ardupilot.org/copter/docs/connect-escs-and-motors.html#connect-escs-and-motors)

I would give it a go and try to hover it but it runs on 32" props and I don’t want to risk any damage.

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**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\
**Post date:** [18 February 2022 05:22 UTC](https://discuss.cubepilot.org/t/motor-test-letters-for-octo-quad-h/8374/2 "2022-02-18T05:22:44Z")

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> The first motor to spin will be the one located directly forward in the case of + configuration, or the first motor to the right of straight forward in the case of X configuration. The motor test will then proceed in a clockwise rotation.  
> [Connect ESCs and Motors — Copter documentation](https://ardupilot.org/copter/docs/connect-escs-and-motors.html)

Seems they are in clockwise direction no matter what the frame is?  
You can always try with no propellers and low throttle.