Outrunner info?? - RC-Monster Forums

BrianG · 11.30.2006, 07:15 PM

Captain: What do you mean by "huh"?

danverz: Thanks. I understand how to figure out the rpms using all the reductions, etc. I just don't know enough about outrunners to know what the "guidelines" are.

jhautz: Yeah, I also knew about the high pole counts and the rpm limit dues to the mass makes sense. Since the weight is so far out, it would also act as a flywheel of sorts as well. I wonder what kind of effect that would have. Those cyclone motors look nice. I guess I'll let you be the guinea pig - it's better on my wallet! :)

Gotta be careful with the Quark programming though:

Quote:

Note: Please select Out-runner type if an In-runner has 6 poles or above. Also, please select In-runner when using an out-runner with less than 600kv.

So I guess it depends on the poles and/or kv value...

I like the fact that these motors are physically shorter and the lower kv allows me to eliminate the tranny/spur/pinion, which do have some losses. Not to mention it would eliminate any possible weak spots in those areas.

jhautz · 11.30.2006, 07:40 PM

A direct drive like you are thinking would be pretty cool. You would only need around 3500 RPM to get 60 MPH on a max size wheel. A 240kv ourtunner on 4s would get you over 60 mph. The question is.... Can you really get that much torque out of one motor. :002:

What about getting 2 of them and setting it up on a pair of tank tracks and just use motor speed to steer as well as drive.:p

captain harlock · 11.30.2006, 09:41 PM

[QUOTE=BrianG]Captain: What do you mean by "huh"?

Nothing.
I'm quite very simple when it comes to these sort of topics. You talk alot of science:032: and I'm frankly not that type of guy who would dig deep into things like that. I really dont understand many of the terminologies used in this hobby and specifically what regards brushless and all.

Haha! I was only joking when I said "huh?", though.:p

Do not take me wrong.:)

BrianG · 11.30.2006, 09:45 PM

Lol, that's OK. It's just that the statement was a little open-ended and was wondering specifically what the confusion was about. :)

zeropointbug · 12.01.2006, 01:50 AM

The E-Flite has a 6mm shaft that is reversible BrianG, so you can take it out and put in a longer one for 4wd if you ever wanted to. Or to simply flip the motor around...