Search found 16 matches

by nanni
Sep 15, 2017 5:02 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

Got one more quick attempt. Waterproof container instantly took on water and fried the ESC. Still don't know if the setup works or not. It's already getting cold around here. Might have to wait again till spring! Another year goes by and no riding for me! Your setup should be for sea water or fresh...
by nanni
Sep 05, 2017 4:02 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

I am not saying it will not spin. This is last post of Matthias on ES, do you see something strange in the numbers and his statement to? The torqeedo prop is desingned to work at 1300rpm most efficient so i choose the gear reduction a little higher to get around 1500rpm. I'm not sure what the trust...
by nanni
Sep 05, 2017 1:39 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

anodised aluminum tube made as close as possible to the outrunner rotor will eliminate the air for a quicker thermal exchange with the outside water; You may want to choose non conductive material around a rotating magnetic field or have a gap, big enough to leaking magnetic field not reach conduct...
by nanni
Sep 03, 2017 3:41 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

motore outrunner2.jpg Immagine.jpg This is what I think: Anodised aluminium is a good thermal conductor and an electric insulator; the flange directly screwed to the outrunner motor may possibly cool the engine by heat exchange with the outside water, as well as the anodised aluminum tube made as c...
by nanni
Sep 03, 2017 9:59 am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

Hello everybody. Like everybody i want to fly over the water. So I decide to build my own system. The only thing I want is to use a outrunner because of the cost of the reduction. I already have done a lot of test of motor and propeller using my paddle board. Here is the drawing of my futur system....
by nanni
Aug 26, 2017 7:21 am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

How do you want to cool an out runner under water? :? What if the motor was in a waterproof housing filled with low viscosity oil? Windage losses would increase but are typically a fairly small percentage of overall losses even for outrunners. Still probably less efficient than a gearbox but not by...
by nanni
Aug 14, 2017 4:22 am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

Congrats for your maiden flight! Could you share the video outside of Facebook, please. I am dying to see them Go to this link https://www.facebook.com/media/set/?set=a.10159438659855144&type=1&l=2e97c1f9fb click on any photo and then slide the photos right or left, you will see all the photos of t...
by nanni
Jul 21, 2017 3:27 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

Red Brick 200A ESC https://www.banggood.com/Red-Brick-200A-ESC-Brushless-ESC-OPTO-NO-BEC-200AOPTO-p-77974.html?rmmds=search It's only 2-7s, you need a hv esc, something like this https://szfvt.en.alibaba.com/product/60449510282-802501949/Newarrival_brushless_DC_motor_electronic_skateboard_12S_HV_12...
by nanni
Jul 15, 2017 10:10 pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

How do you want to cool an out runner under water? :? If you want there's a water cooled version of the 80100 :wink: http://alienpowersystem.com/shop/brushless-motors/wc80100-outrunner-brushless-motor-180kv-7000w-watercooled/ , i don't know for the 6374 . Remember that Bruno can supply different mo...
by nanni
Jul 13, 2017 5:41 am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 29765

Re: Electric Hydrofoil/E-Foil

Hi anbat8, have you seen this? http://alienpowersystem.com/shop/brushless-motors/alien-6374-outrunner-brushless-motor-60kv-3200w/ or this? http://alienpowersystem.com/shop/brushless-motors/c80100-outrunner-brushless-motor-50kv-6000w/ No, did you tried one of these? Is it reliable? Thanks Bruno is n...
by nanni
Dec 01, 2016 1:37 pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 518
Views: 107283

Re: Electric Surf Board

My project is for a kayak, maybe It could be used on a surfbord. Brushless motor fsd 6362 250 kv, esc 6s 100ah , pvc tube, 2 rounded piece of wood, 2 seal, 2 bearings, solas prop,1 of this https://www.leroymerlin.it/catalogo/raccordo-maschio-in-polipropilene--20-mm-1-2%2522-pollici-pn-16-bar-3585157...
by nanni
Apr 18, 2016 2:36 am
Forum: E-Bike Technical
Topic: Which one? e-bike chinese controller outrunner motor 8s
Replies: 0
Views: 204

Which one? e-bike chinese controller outrunner motor 8s

Hi, for my project (electric outboard) I need some advices. I have this outrunner motor http://sdshobbyusa.net/index.php?main_page=product_info&cPath=17_199_286&products_id=4905 . I have already a rc esc with servotester, but in continuos mode it became very hot, and so I want to use a small 6 fet c...
by nanni
Sep 13, 2014 1:22 am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 518
Views: 107283

Re: Electric Surf Board

@dirkdiggler maybe this is an interesting solution for the solas prop http://www.rcgroups.com/forums/showthread.php?t=1649299#post21671080 and the motor is also water-cooled. This is the solution that I would like to take my kayak, with two double lip seals and two bearings for the motor shaft. Howe...
by nanni
Aug 29, 2014 2:23 am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 518
Views: 107283

Re: Electric Surf Board

Hello everyone, I'm new to the forum and sorry for my bad English :oops: . Wow guys, this thread is really interesting for my project, kayak with an electric motor. Its made for 3hp motors that spin at 5000rpm. We will see... The saga continues Dirkdiggler I think you're on the right track with the ...