70141 / 70131 waterproof motors

That’s right, they have 18 slots on the rotor. I saw this too. I think they use exactly the same stator as the sss 56 series which packs 18 slots, hence the same number. But, what about the rotor ?
I haven’t seen any pic of it, I can’t trust 9, 10 or even 14 poles without seeing the rotor…

Definitely not the same stator. The 56mm motor has an external stator dimension of ±52mm and the 70mm motor has the external stator dimension of 66mm.
The main problem is that they haven’t changed the design of the stator combination. That’s where the FR motor is so good. All one of these companies actually need to do is buy one and clone it. But who knows why they haven’t done that…

I was speaking about their 56mm diameter motor. Of course the 70mm diameter would have a larger stator. I measured the stator diameter of my sss and it was 53mm.
It’s not that easy to clone it. Actually there is nothing to clone, if you make a motor study for 18 slots you know you have the best performance / efficiency with 16 poles. The fact is that making such a rotor is expensive, cloning it is also expensive, which means they won’t be able to sell it a good price event if they make thousands units of it…

Look like 9

https://efoil.builders/uploads/default/original/2X/7/7277ef089e7c92a10f27b24585e39f97d5ba8fd3.jpeg

Was it a freerchobby motor ? I tried to find this motor back but did not succeed. Interesting, thanks !

Don’t just took the pics on another post , this 56 came from aps but it looks just renamed

This one was 8 poles according to original post and is a different motor from the freerchobby. It was supposed to be a 53112. I have no idea where we can buy this motor tbh…

It’s really waterproofed or corrosionX should be applied like on 65161?

I have the MP70131 and it as 10 Poles, works the finest.

With which propeller ? Would you have any picture of your foil with it t ? Did you have the opportunity to do some data logging or comparison with a 6515x Reacher Tech motor (Flipsky/Maytech) ?

No haven’t opened it up :frowning:

Would you measure your rpm drop when shaft loaded ? This would give us an idea of the available torque. What prop did you use too ?
Thanks !

I can try but project is on hold for a while. prop is 3d printed and designed by another here who is using same motor successfully so I’ve no details to give on it

Would you ask this person to join our conversation by a “@” :wink:

@Bevo would be your man @SoEFoil

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Thanks. I did a forum search on “70141” because the motor color and shape was familiar with the potted back … without success :thinking:
The familiar thread is the 70131 one where we find @Bevo and @jnobile test results using @MaB’s prop :

My MP70141 just arrived.
I posted some infos in this thread. Have a look.
MP70131 anyone tried
If someone knows how to take this motor apart, please let me know.

I am thinking to buy this motor 100kV
https://es.aliexpress.com/item/1005001883234583.html?acnt=713-097-6633&aff_platform=aaf&ds_e_device=c&albcp=12107665365&ds_e_product_id=es1005001883234583&ds_url_v=2&ds_dest_url=https%3A%2F%2Fs.click.aliexpress.com%2Fdeep_link.htm%3Faff_short_key%3DUneMJZVf&ds_e_product_group_id=1140438514558&sk=UneMJZVf&ds_e_adid=492220545021&terminal_id=ee726daeb2f449cdb2161cf44f26d77e&tmLog=new_Detail&needSmbHouyi=false&albbt=Google_7_shopping&ds_e_product_channel=online&src=google&ds_e_product_country=ES&aff_fcid=96d76f0ce1fa4ab0b24a9f9543315106-1628296931032-07219-UneMJZVf&gclid=Cj0KCQjwu7OIBhCsARIsALxCUaPD6BvtQGOysJGCSI8Hfs22WjejQpTBQEAf38VGax50o7t2pMJF5GMaAqrcEALw_wcB&albag=125024249468&aff_fsk=UneMJZVf&albch=shopping&ds_e_network=u&albagn=888888&ds_e_product_language=es&isSmbAutoCall=false&ds_e_product_merchant_id=100940757&aff_trace_key=96d76f0ce1fa4ab0b24a9f9543315106-1628296931032-07219-UneMJZVf&gclsrc=aw.ds

I am trying to install with ESC FLier Boat 300A,16S. Do you think is a good choice? Is this motor compatible with my ESC? Which firmware do you recommend?

I’m also interested… so I follow :slight_smile:

Anyone uses the 70131? it is hard to configurate because auto detection does not bring correct results. At the moment I get 5000w with standard propeller. 7 1/4 *5 A-3, 100kv.