# Bulgarian E-windsurf-foil project
**URL:** https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739
**Category:** Builds
**Created:** [December 12, 2021, 3:45pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739 "2021-12-12T15:45:36Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 12, 2021, 3:45pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/1 "2021-12-12T15:45:36Z")
Hello E-foil enthusiasts !
My name is Valeri Atanasov and I am from Bulgaria.
Sorry for my English, but I will only use Google Translate.
I will present to you my intentions to build an E-Foil on a windsurfing foil board without changing it.
I will first introduce the individual components I have chosen. Please warn me if you notice any major incompatibilities.
Some of the items have already been purchased.
1. Board- I-99 AERO + PRO 81 182l 210x81sm . He will ride with a rig, and without a rig.
2. Foil - all aluminum, length of the mast - 75 cm, area of the front wing - 1100 square centimeters, length of the fuselage - 96 cm. Made in our factory.
3.Motor Flipsky 65161 120kV
4.ESC - APD 200F3[x]
3. Battery - 21700 10S , 9 or 8P . Placed horizontally in a special waterproof box with a height of 30 mm. The rider will step on the box.
4. Remote - by wire to ESC
I will upload some photos .
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 13, 2021, 3:15pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/2 "2021-12-13T15:15:19Z")
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### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [December 13, 2021, 5:30pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/3 "2021-12-13T17:30:53Z")
I’m very interested to see how well this ESC works!
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 14, 2021, 1:32pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/4 "2021-12-14T13:32:08Z")
😉
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### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [December 14, 2021, 2:37pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/6 "2021-12-14T14:37:51Z")
If this ESC works well, then it’s such a great on to place on top of the mast and let the mast cool it!
What’s the post that says processing video about?
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 14, 2021, 3:01pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/7 "2021-12-14T15:01:52Z")
I’m sorry, but I couldn’t upload the video.
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 14, 2021, 3:09pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/8 "2021-12-14T15:09:18Z")
At a supply voltage of 34.8 volts measured on the fuses, the no-load current is 2.15A, the speed is 3750 rpm.
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### Author:  [@Alexandre](https://foil.zone/u/Alexandre)
#### Post date: [December 14, 2021, 5:19pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/9 "2021-12-14T17:19:16Z")
Very curious as well , my heli esc at time blow up on first the load , but my boat esc less powerful is still working
I am a esc expert but I guess esc strategy for air isn’t the same as water , can it handle high amp at low switching freq (?) , I hope because it has a very compact design
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### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [December 14, 2021, 6:06pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/10 "2021-12-14T18:06:40Z")
> [@Alexandre](#):
>
> I am a esc expert but I guess esc strategy for air isn’t the same as water , can it handle high amp at low switching freq (?) , I hope because it has a very compact design
It might not be the same as for water, but with a lot of the heavy-lift drones they fly with low KV motors so this should be able to handle low switching frequency. Here’s the full overview: [https://docs.powerdrives.net/products/f-series-esc/overview](https://docs.powerdrives.net/products/f-series-esc/overview)
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 15, 2021, 7:01am UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/11 "2021-12-15T07:01:06Z")
> **[Log in or sign up to view](https://www.facebook.com/messenger_media/?thread_id=879630577&attachment_id=1259965091177259&message_id=mid.%24cAABbAygm836D1fa3MV9pLFqvKUPQ)**
>
> See posts, photos and more on Facebook.
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### Author:  [@Gazman79](https://foil.zone/u/Gazman79)
#### Post date: [December 15, 2021, 7:51am UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/13 "2021-12-15T07:51:26Z")
Your ESC does look interesting, hopefully it will be fine, I am using an airplane ESC Castle Creations HV160 which is rated to 160 amp.
Do you have to set the switching frequency?
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 15, 2021, 9:25am UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/14 "2021-12-15T09:25:04Z")
Hello Gazman79 ,
My friend Valentin from another city deals with software and electronics. I installed the power parts.
No data is entered on the ESC. At its input we have submitted PWM: 256 Hz with a length of 1 mS for 0 rpm, and at 2 mS MAXrpm .
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### Author:  [@Alexandre](https://foil.zone/u/Alexandre)
#### Post date: [December 15, 2021, 4:01pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/15 "2021-12-15T16:01:13Z")
You may refer too switching freq of the fets , I believed I read it s auto and up to 32
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### Author:  [@Gazman79](https://foil.zone/u/Gazman79)
#### Post date: [December 15, 2021, 6:14pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/16 "2021-12-15T18:14:30Z")
Hi
Ok thanks, yes it does say automatic detect.
The reason I ask is because Castle Creations recommended 16khz for my ESCs PWM frequency switching which I thought was too high, for a 6 pole 120kv motor.
Sorry I don’t want to hijack this thread.
Gareth
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### Author:  [@e-Jetter](https://foil.zone/u/e-Jetter)
#### Post date: [December 15, 2021, 6:53pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/17 "2021-12-15T18:53:23Z")
Knowing absolutely nothing about this rather interesting ESC, I figured why not share a random video I found:
[ ](https://www.youtube.com/watch?v=Zqg-KBMNpKI)
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 23, 2021, 11:50am UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/18 "2021-12-23T11:50:40Z")
[ ](https://www.youtube.com/watch?v=M_t7VJxaGVg)
😏
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 25, 2021, 1:03pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/19 "2021-12-25T13:03:55Z")
> [@valeri](#):
>
> Bulgarian E-windsurf-foil project with ESC - APD 200F3
[ ](https://www.youtube.com/watch?v=Gqrw8gS7STY)
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [December 30, 2021, 11:31am UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/20 "2021-12-30T11:31:12Z")
[![]( " - YouTube") ](https://www.youtube.com/watch?v=A26wX6FwqRk)
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [January 1, 2022, 3:26pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/21 "2022-01-01T15:26:21Z")
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### Author:  [@valeri](https://foil.zone/u/valeri)
#### Post date: [January 26, 2022, 4:14pm UTC](https://foil.zone/t/bulgarian-e-windsurf-foil-project/14739/22 "2022-01-26T16:14:00Z")
Hello everyone ,
Do you think this LG INR21700-M50LT 4890mAh - 14.4A 10S 10P battery is suitable for the 65161 motor, for speeds of 20-25 kilometers per hour and smooth acceleration ?
[https://eu.nkon.nl/rechargeable/li-ion/21700-20700-size/lg-m50lt.html](https://eu.nkon.nl/rechargeable/li-ion/21700-20700-size/lg-m50lt.html)
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