# 99cm (Volker‘s fourth)
**URL:** https://foil.zone/t/99cm-volker-s-fourth/17000
**Category:** Builds
**Created:** [October 31, 2022, 10:33pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000 "2022-10-31T22:33:06Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [October 31, 2022, 10:33pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/1 "2022-10-31T22:33:07Z")
How much eFoil do you need?
I tried.
Goal: 10kg, so my son can carry it by himself.
Some specs:
99cm \* 48cm \* 6cm
12s4p VTC6 (optional 12s4p 21700 50s fit in as well)
Vesc six
Similar build like [shorty 2](https://foil.zone/t/shorty-2-volker-s-third/16619), but without wooden box. Full Carbon. The finished board was 2kg. Additional Coating, Stupid round screwcap weights 400g + glue and screws. 400g Vesc (including cooling & metr and receiver). EVA pad 170g; 2400g battery i am at round about 5,5kg.
My old RL setup with 63100 is 5850g.
Final weight total 11,35kg.
Next step: Building weight optimized carbon mast with 6384 and carbon fuselage. That should save at least 1,35kg.
My kids only need 8A batterycurrent flying, 15-20A starting. So the setup is fine for at least 1h, even with plenty starts.
Maiden flight was today (me).
What can i say?
I dont need more than 99cm 🤗
Cutting templates shorty 2 (118cm) VS 99cm
Side by side
perspective is savage
proof even adults can ride it:
Current limit motor 99A (and aditional limits like erpm, current batt, Power, SPACE for riding🤪)
https://metr.at/r/wMSBc?editbtn=1
Submarine start
[ ](https://www.youtube.com/watch?v=v_GTwAR3Qsw)
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### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [November 1, 2022, 9:55am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/2 "2022-11-01T09:55:42Z")
Good to see someone starting sensibly and not trying to stand up too early! It makes a world of difference when you start with the right amount of speed.
I love this build!
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### Author:  [@hovav](https://foil.zone/u/hovav)
#### Post date: [November 3, 2022, 4:16pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/3 "2022-11-03T16:16:22Z")
I love this build. VERY NICE !!!
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [November 14, 2022, 10:24am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/4 "2022-11-14T10:24:38Z")
Rider weight 80kg, 4p VTC6. Old 63100 with screaming ballbearings, but works.
Good for 10km range.
https://metr.at/r/CEzee
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### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [December 24, 2022, 6:35pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/5 "2022-12-24T18:35:19Z")
Have you noticed any problems with touchdowns and the sharpish square shape of the front of your boards? I would assume the sharper corners might cut down and get stuck in the water?
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [December 24, 2022, 7:10pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/6 "2022-12-24T19:10:43Z")
No issues with touchdowns. The nose is tilted up more than enough.
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### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [December 24, 2022, 9:47pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/7 "2022-12-24T21:47:41Z")
Yes, but sometimes i drop down during turns and touch the water, especially in higher waves. I’m concerned that a square low volume front corner like that gets caught in the water, causing a crash. How is that working for this board shape?
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [June 19, 2026, 8:33am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/8 "2026-06-19T08:33:19Z")
My 63100 reached end of life. RIP
I‘ll test the [5085](https://a.aliexpress.com/_EzS9g0S)
Any suggestions for a good prop? That one looks so flimsy.
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### Author:  [@rttn](https://foil.zone/u/rttn)
#### Post date: [June 19, 2026, 9:51am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/9 "2026-06-19T09:51:24Z")
I would advise you to use a scaled Volker propeller )))
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [June 19, 2026, 9:55am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/10 "2026-06-19T09:55:03Z")
I’m afraid that’s what it will come down to.
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### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 19, 2026, 1:14pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/11 "2026-06-19T13:14:38Z")
@V_S isn’t it forbidden in all lakes from austria to go with an EFoil? If it is allowed, do you know where else in Austria or where I can find the rulse for it. Because I saw a 10km ride from you on the Wallersee here. Thanks
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [June 19, 2026, 1:19pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/12 "2026-06-19T13:19:07Z")
Sorry, wrong Adress, i am from Germany.
Once lived in Bavaria, almost everywhere forbidden, now i live more Central in Germany, and all Rivers are free for me
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### Author:  [@sharrow](https://foil.zone/u/sharrow)
#### Post date: [June 19, 2026, 1:21pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/13 "2026-06-19T13:21:21Z")
Ok though you knew something I do not know. It’s a pity, in switzerland also forbidden and germany mainly the rivers only.
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [July 19, 2026, 6:35pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/14 "2026-07-19T18:35:37Z")
> [@V\_S](#):
>
> I‘ll test the [5085](https://a.aliexpress.com/_EzS9g0S)
Works flawless
800-850W at 21-22km/h.
(ignore speed and consumption. Based on calculated Speed, but wrong settings for Transmission in Vesc)
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### Author:  [@Alex2A](https://foil.zone/u/Alex2A)
#### Post date: [July 23, 2026, 9:14am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/15 "2026-07-23T09:14:04Z")
Very nice
It might provide a Usefull alternative, for a surf oriented efoil it probably is less dragy
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [July 23, 2026, 9:21am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/16 "2026-07-23T09:21:00Z")
Definitivly less drag. Motor performs really well, is sealed and potted properly. But the bearings are Low Performer. 8h, No salt and ready for the dumpster.
Back one for replacement: SS608 2RS
Front (two piece) SS688 2RS
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### Author:  [@Alex2A](https://foil.zone/u/Alex2A)
#### Post date: [July 29, 2026, 8:30am UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/17 "2026-07-29T08:30:09Z")
Once we find a folding prop for this motor it could be a very good choice for a low drag efoil 👍
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [August 1, 2026, 9:26pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/18 "2026-08-01T21:26:03Z")
5085 works like a charme. Even though its on pinky atm.
Only downside: Outrunners are always Kinds noisy
[ ](https://www.youtube.com/watch?v=6V6FdSFnwXw)
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### Author:  [@Alex2A](https://foil.zone/u/Alex2A)
#### Post date: [August 2, 2026, 7:15pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/19 "2026-08-02T19:15:25Z")
very nice.
it surely is a balancing act when starting with such a small board.
I am thinking about starting a project like yours, but can you show some details about the conection, and waterproofing off the mast/ bottom of the board please ? I am not to sure about how to proceed for this part.
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### Author:  [@V\_S](https://foil.zone/u/V_S)
#### Post date: [August 2, 2026, 8:16pm UTC](https://foil.zone/t/99cm-volker-s-fourth/17000/20 "2026-08-02T20:16:40Z")
Board: a small oval hole
Mast:
The red stuff is 2mm foam rubber
In terms of how to start, here a small [peakview](https://foil.zone/t/bremote-v2-open-source-remote/23689/562)