Search found 68 matches

by Just2807
Oct 29 2017 3:09pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

I was looking some noise comparisons on youtube and noticed how much quieter ePropulsion next to Torqueedo is. I went to ePropulsion official site, they showed their "gearbox free" system. Possibly an outrunner? (i didnt find anything about dimentions but it doesnt look 2 bulky, not sure) http://www...
by Just2807
Sep 24 2017 2:40pm
Forum: Battery Technology
Topic: This dude is sick xD
Replies: 2
Views: 726

Re: This dude is sick xD

Ty, didnt realise that. (weird translation to my language)
by Just2807
Sep 07 2017 10:20pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

I hope u extend your quiver from lightwind to nowind ;) Thumbs up!
by Just2807
Sep 07 2017 5:58pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

@waterfox What voltage were you running again? 12S 16Ah: 2X Tattu Plus 6S 16Ah. I am interested in startup amps and "when up foiling" amps :) I think his motor tops out on 120 volts/100 amps if i remember specs correctly. Also, this wake foil seems a bit smallish, its designed with a lot of power i...
by Just2807
Sep 07 2017 9:23am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

Try playing with foil angles. Hiorth said it helped him stabilize his flight a lot. Not sure did he inverted "backwing" (contra lift to oppose kite pull+getting more lift ; however i am not sure are kite and wake foil 2 different setups) or just changed total angle of the fuselage but he looks freak...
by Just2807
Sep 03 2017 6:19pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

Vincent that looks great! Good luck with cooling, i like the idea, wish it works!! Would solve a lot of problems.
Also, u are running around 5000 rpm at the propeller? (8s on 170 kv)
by Just2807
Sep 03 2017 4:11pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

Hello together, I'm new in this forums and since i saw an electric jetsurf on my trip in croatia interested in building my own one. Because of the power issue i want to build a jetfoiler. Saw all the pacificmeister videos but there are still a lot of questions opened. How important is the board siz...
by Just2807
Sep 03 2017 12:34pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 65056

Re: Electric Hydrofoil/E-Foil

I still dont get how to properly cool an outrunner watersealed without adding any liquids/semiliquids and some kind of a heatsink for this purpose. And i still would be very suspicious about temps and losses. I guess using overspeced motor would work but.... size? Can he use "emtpy space" (in this c...
by Just2807
Aug 27 2017 2:38pm
Forum: Battery Technology
Topic: This dude is sick xD
Replies: 2
Views: 726

This dude is sick xD

I am not sure is this anywhere on the forum, and the guy is maybe even on this forum but this is freakin 2 sick to not share! My apologies if its a double post, i just dk where to post this. I am sure admins can clear this in 1 click :* Who hasnt seen, enjoy :) https://www.youtube.com/watch?v=Md4l9b...
by Just2807
Jul 16 2017 11:54am
Forum: Stand-up E-scooters and E-skateboards
Topic: Uber scam?
Replies: 2
Views: 741

Re: Uber scam?

There are actually dimensions, motor type, power specs, battery type.... But there is no PayPal (or at least some kind of buyer protection, only direct deposit) option and most of the page is https but NOT at the PAYMENT PAGE. Enough for me :| Cant find info about website either. EDIT: Shipping & re...
by Just2807
Jul 16 2017 10:42am
Forum: Stand-up E-scooters and E-skateboards
Topic: Uber scam?
Replies: 2
Views: 741

Uber scam?

Hey ppl, dk where to post this but some people pointed me on this website and some are even planning to deposit some cash. I told them not to but...
Check for yourself:
http://scootertop.com/
Any1 knows anything about this? o.O
by Just2807
Jun 27 2017 7:49am
Forum: Electric Watercraft
Topic: JET BOARD PROJECT
Replies: 11
Views: 4938

Re: JET BOARD PROJECT

Thank you for the video. I think the board must be wider. There is this video where a drone is pulling a guy on a skimboard, also at deep water. I also see skimboard videos, where they can plane very long also at deep water when they ride the board sideways. Which also made me think that a wide boa...
by Just2807
Apr 01 2017 2:50pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Husqvarna wre125
Replies: 25
Views: 4964

Re: Husqvarna wre125

Pozor! Elektrika zarazna! hahahaha
Hurry up with filming pls :D
by Just2807
Feb 22 2017 11:29am
Forum: E-Bike Technical
Topic: Question about electromagnetic fields and health
Replies: 16
Views: 1589

Re: Question about electromagnetic fields and health

Statistically, people living in close to high power cable/compound areas, tend to have way above the average body anomalies aka cancers, blood diseases, defects and similar stuff. Only reason why it continues to be like that is cause there is no explanation aka proof for it. Unfortunately, that's ho...
by Just2807
Feb 08 2017 7:51pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 759
Views: 196867

Re: Electric Surf Board

U need certain amount of speed to be foiling and when u reach it, u can foil no problem. Till then, its regular surfboard. And while foiling, u need i would say half the power :)
by Just2807
Feb 06 2017 4:16pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: DELLER russian dirtbike
Replies: 19
Views: 3932

Re: DELLER russian dirtbike

Maybe they forgot to say it's 2 different motors u can pick before purchase eh? ;D
by Just2807
Feb 06 2017 3:54pm
Forum: Motor Technology
Topic: Magnet motor?
Replies: 16
Views: 2342

Re: Magnet motor?

then you could make a motor that spins forever at 100% efficiency.. Maybe that'd be possible on another planet? Until then, instead of having 100% effiicient motors, we'll have to deal with 97%.. I "dont" want 100% efficient motor or perpetum mobile. And why planet? Why not spinning it on the edge ...
by Just2807
Feb 06 2017 2:38am
Forum: Motor Technology
Topic: Magnet motor?
Replies: 16
Views: 2342

Re: Magnet motor?

I imagined it as a nice idea for battery substitute (or "battery helper"), as a generator or a charger :D Hand would only be a "starter". And ofc u need to invest some energy. Magnets have to be made too, bearings... etc etc
by Just2807
Feb 06 2017 1:57am
Forum: Motor Technology
Topic: Magnet motor?
Replies: 16
Views: 2342

Re: Magnet motor?

How about arangeing the magnets and mechanically changing the poles with rotation (like valves on a gas motor), similar to this video under? https://www.youtube.com/watch?v=4Ge2h8Apgd8&t=314s Minute 5 :| It would allow a full 360? I am not trying to invent anything, just curious in the whole thing. ...
by Just2807
Feb 05 2017 7:45pm
Forum: Motor Technology
Topic: Magnet motor?
Replies: 16
Views: 2342

Magnet motor?

Why are we still not seeing something like this? -.- I saw very old yt videos and old old posts of self sustaining (after u give it starting momentum with a hand) permanent magnet motors spinning for a very long time. I am well aware of very possible hoax too but i it's obvious to me it could (maybe...
by Just2807
Feb 05 2017 3:02pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: DELLER russian dirtbike
Replies: 19
Views: 3932

Re: DELLER russian dirtbike

Oh cant wait to see urban version.
What motor is this, costume built and winded? Bldc i presume?
by Just2807
Feb 04 2017 7:53pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: DELLER russian dirtbike
Replies: 19
Views: 3932

Re: DELLER russian dirtbike

Sweet zombie Jesus, what the hell?!
by Just2807
Jan 29 2017 3:32pm
Forum: Motor Technology
Topic: cyclone 18kw???
Replies: 10
Views: 2779

Re: cyclone 18kw???

joby1 wrote:i was thinking what the hell kind of battery would it take to run that motor for any length of time...
Well, 18kWh battery with nice C number would run it for 45 mins eh? ;D
by Just2807
Jan 29 2017 3:26pm
Forum: Battery Technology
Topic: 32Ah pouch cells.
Replies: 6
Views: 947

Re: 32Ah pouch cells.

Hm, with 25x25cm and nominal 370 amp discharge rate... Very interesting o.O
I wonder, how much cycles would it have at 2-3C max regular discharge usage. Would be a long term pack?
by Just2807
Jan 29 2017 3:21pm
Forum: Battery Technology
Topic: DIY 18650 20 Ah 36 V -- pipe pack
Replies: 7
Views: 1244

Re: DIY 18650 20 Ah 36 V -- pipe pack

Looks awesome and safe. I hope that pipe is not welded part of the frame eh? ;D