# (eFoil Motor) Hobiba D70L65-120Kv Underwater testing report -2024
**URL:** https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786
**Category:** Buy & Sell (no commercial ads please)
**Created:** [May 23, 2024, 9:08am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786 "2024-05-23T09:08:57Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [May 23, 2024, 9:08am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/1 "2024-05-23T09:08:57Z")
Recently Hobiba arranged underwater testing for D70L165 at 120Kv, working voltage at 50V:
Available with DIY buyer
These testings for reference ONLY, hope it inspires people when selecting and matching prop. with hobiba motor-D70L165., of course more testing results with diferent motors and props. will be available on a regular basis in future.
---
### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [May 23, 2024, 11:15am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/2 "2024-05-23T11:15:23Z")
Thuster is meant to be thrust?
and Kgf should be Kg?
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [May 23, 2024, 5:54pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/3 "2024-05-23T17:54:14Z")
Which propeller did you use?
---
### Author:  [@Foilguy](https://foil.zone/u/Foilguy)
#### Post date: [May 23, 2024, 6:02pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/4 "2024-05-23T18:02:30Z")
Also rmp would mean RPM?
---
### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [May 23, 2024, 6:30pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/5 "2024-05-23T18:30:52Z")
Definitely one those bad boat props that sell with the motors
---
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [May 24, 2024, 12:26am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/6 "2024-05-24T00:26:33Z")
yes, you are right đź‘Ť
---
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [May 24, 2024, 12:27am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/7 "2024-05-24T00:27:43Z")
7 1/2 x 5 prop. & 71/4x5 Prop.
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [May 25, 2024, 11:16am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/8 "2024-05-25T11:16:15Z")
Thank you and which esc?
---
### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [May 25, 2024, 1:09pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/9 "2024-05-25T13:09:17Z")
> [@Hailin](#):
>
> 7 1/2 x 5 prop. & 71/4x5 Prop.
Could you post a picture of them ? New efficient OEM models for efoils have appeared on the Chinese market since 2023 like these ones…
If not tested with these ones, could you put a hand on them and do some more tests ?
If the test is a success, would you sell each motor as a bundle with the best prop for it ?
---
### Author:  [@windego](https://foil.zone/u/windego)
#### Post date: [May 25, 2024, 6:51pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/10 "2024-05-25T18:51:33Z")
Pitch 5 is too small from my experience. Lots of bottom end but not good running at 25kmh on my 120kv. The fliteprop has been awesome!
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 23, 2024, 5:21pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/11 "2024-06-23T17:21:38Z")
I was making a static thrust test today, I reached 9,3kw with the 7 1/4 x 5 Propeller. With 14s battery 120ah and Flipsky 75350. So I can confirm the data from the test above. This motor got a lot of power.
---
### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [June 23, 2024, 7:52pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/12 "2024-06-23T19:52:08Z")
Testing is great, but a measured high power into the motor just means you have a powerful esc and battery - if you don’t measure power out or thrust at the same time.
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 23, 2024, 9:30pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/13 "2024-06-23T21:30:27Z")
What power out data do you mean? Which from the vesc Tool?
---
### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [June 24, 2024, 5:52pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/14 "2024-06-24T17:52:07Z")
Power out is measured mechanical power, like torque\*rpm/9.55
Or static thrust, at least gives some knowledge of the motor
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 24, 2024, 7:38pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/15 "2024-06-24T19:38:24Z")
Unfortunately I got no option for measuring the thrust or torque.what does the 9.55 mean in your formular? Where does it come from?
My duty cycle is 85% at full throttle
---
### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [June 24, 2024, 7:48pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/16 "2024-06-24T19:48:35Z")
It’s a conversion factor from radians to rpm.
It’s 1/(2xpi/60)—\>9.55
---
### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 24, 2024, 8:28pm UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/17 "2024-06-24T20:28:02Z")
Ok understand, thank you. About the thrust I can say it is massive compared to 65161 with flite prop and 6kw
---
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [June 25, 2024, 3:28am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/18 "2024-06-25T03:28:43Z")
you are welcome, use our own esc,
---
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [June 25, 2024, 3:30am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/19 "2024-06-25T03:30:16Z")
yes, match with the right propeller is too important, and hope our testing will guide people toward the right direction
---
### Author:  [@Hailin](https://foil.zone/u/Hailin)
#### Post date: [June 25, 2024, 3:31am UTC](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786/20 "2024-06-25T03:31:30Z")
this 9.55 we use quite often
[Next page](https://foil.zone/t/efoil-motor-hobiba-d70l65-120kv-underwater-testing-report-2024/20786.md?page=2)