# Real world footage of reach alpha arm on BR2?

**URL:** <https://discuss.bluerobotics.com/t/real-world-footage-of-reach-alpha-arm-on-br2/15429>\
**Category:** Hardware\
**Created:** [November 6, 2023, 8:50am UTC](https://discuss.bluerobotics.com/t/real-world-footage-of-reach-alpha-arm-on-br2/15429 "2023-11-06T08:50:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Lyra](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/lyra/32/12029_2.png) [@Lyra](https://discuss.bluerobotics.com/u/Lyra)\
**Post date:** [November 6, 2023, 8:50am UTC](https://discuss.bluerobotics.com/t/real-world-footage-of-reach-alpha-arm-on-br2/15429/1 "2023-11-06T08:50:02Z")

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Hi,

Does anybody have a real world underwater footage of reach alpha manipulator on a BR2 doing real work at sea ? Could not find anything on Youtube.

Maybe @PaulP or @Alex_UJI1 or @Taizo or @PoseidonROV ?

Thanks !

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**Author:** ![Alex\_UJI1](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/alex_uji1/32/9284_2.png) [@Alex\_UJI1](https://discuss.bluerobotics.com/u/Alex_UJI1)\
**Post date:** [November 7, 2023, 1:40pm UTC](https://discuss.bluerobotics.com/t/real-world-footage-of-reach-alpha-arm-on-br2/15429/2 "2023-11-07T13:40:37Z")

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No, so far we have only tested the BlueROV + Reach Alpha in our water tank

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**Author:** ![PoseidonROV](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/poseidonrov/32/5541_2.png) [@PoseidonROV](https://discuss.bluerobotics.com/u/PoseidonROV)\
**Post date:** [December 16, 2023, 5:52pm UTC](https://discuss.bluerobotics.com/t/real-world-footage-of-reach-alpha-arm-on-br2/15429/3 "2023-12-16T17:52:26Z")

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No footage I’m afraid. Most customers (apart from universities and nonprofits) typically are under NDAs with their end clients. So while they might be doing something as simple as recovering a dropped wrench in a water treatment plant, they would not be allowed to share that footage. Thus, once we install the Reach Alpha on a Blue ROV2 or Lanai and ship it, that’s the last we’ll ever see of the system.

Having installed Reach Alpha 3 and 5 axis manipulators on Blue ROVs and talked the the people the ran them, I can say that a Blue ROV2 Heavy with 8 thrusters is required. Without 4 vertical thrusters for pitch stabilization, there is almost no “reaction force” for the arm to push against.