Outrunners supported/held by the shaft?

[zeropointbug]

6s lipo

[What's_nitro?]

Hmmm... 10 slots, 12 poles- is it me or does that make 60 "ticks" per revolution....

[MetalMan]

So a top RPM of ~10,000. And if using truggy/MT tires it would require a reduction of about 4:1 to achieve ~45mph.

Will there be only one for the entire vehicle (assuming 4 wheels)?

[zeropointbug]

It would make 30 commutations per revolution. I am just wondering what the torque is on this thing, and what the max rpm is, then I can get a relative measure to how powerful it will be. I wish they had a peak power rating for it as well, as it would be more useful than continuous power rating.

Metalman, about your question about why not "HK" series, the Kv. for the non-HK model was the ideal number (460 kv.) for 6s lipo.

Yes, this will be for a truggy platform, as it would be too fast for a Revo drivetrain (2.8:1 diffs)

[MetalMan]

You can get the Scorpion Calc here:
http://www.scorpionsystem.com/downloads/
(2nd item on the list)

So it will use truggy diffs. Will the outrunner's output shaft be a part of the diff input shaft?

[zeropointbug]

Thanks for the link Metalman, I DL'ed it, but it doesn't really do us surface guys any good as it is based on max rpm loads, and not full rpm range. It states a peak 90% efficiency which is nice.

About your question, I can't tell. You may as well stop asking, no one will ever guess it.

[zeropointbug]

Here is a spec sheet, doesn't tell much useful, but cool to look at non the less.

[lutach]

Depending on how well the outrunner is built, they can go as high as the ESC can run it. I've heard of outrunner going over 30K RPMs. Some have been rewound to make sick amounts of power and used even to set a 400MPH+ plane record.

[What's_nitro?]

Originally Posted by lutach

Depending on how well the outrunner is built, they can go as high as the ESC can run it. I've heard of outrunner going over 30K RPMs. Some have been rewound to make sick amounts of power and used even to set a 400MPH+ plane record.

Linky???

[lutach]

Originally Posted by What's_nitro?

Linky???

Enjoy the wonderful work of Powercroco:

http://www.powercroco.de/scorpion.html
http://www.powercroco.de/crocospeed.html
http://www.powercroco.de/extremmotoren.html

A modified Scorpion motor was used to set the speed record I mentioned, but I can't seem to find the exact link in the site. It was mentioned in RCGroups.

Edit: It's actually over 400Km/h+. I'm going through the links now and man, it's always awesome.

[zeropointbug]

Wow, that guy has some serious motor winding skills. It would be nice if he had some vids... it seems like he just builds them and takes pics and no action, lol.

I really like the slotless outrunner he made, very cool.

[lutach]

Originally Posted by zeropointbug

Wow, that guy has some serious motor winding skills. It would be nice if he had some vids... it seems like he just builds them and takes pics and no action, lol.

I really like the slotless outrunner he made, very cool.

He has amazing skills. It would be nice to see some of the outrunner brushless gurus of RCGroups to come here and give some input.

So, what are you cooking up? Did you get abducted by some form of super intelligent creature and got some technology from them? So far I've only seen 2 UFOs, not little gray or gree guys, but just 2 UFOs.

[What's_nitro?]

Originally Posted by zeropointbug

I really like the slotless outrunner he made, very cool.

I second that.

http://www.powercroco.de/slotless_outrunner.html

[zeropointbug]

I think I might have to just spill the beans, because I am still trying to work out a few design issues in my head before I can even CAD it. The issues are mainly due to not knowing exactly how the outrunner in question is put together and a couple of 'assembly' unknowns.

I'll be on later to post a a simple drawing of it, and explain how it work... we may as well do this together!

[What's_nitro?]

I'll be glad to help!