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 new beetleweight design...

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Dan Curhan
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PostSubject: new beetleweight design...   Wed Jul 22, 2009 12:53 am

I'm designing a new beetleweight. I'm not revealing anything, only that I need a brushless inrunner between 100 and 200 g that can spin a 2 lb weapon over 10000 RPM at 11.1V and that is less than $50.

On hobby city there are so many motors that fit this that I have no idea which to choose!
they're all around $20, and all have pretty similar specs. I narrowed the ten pages down into 6 motors.

motor 1
motor 2
motor 3
motor 4
motor 5
motor 6

And then there's a feigao 380-12L 2408kv, 170g, 400W for $43.19

and at the absolute top end of what i'm willing to spend - a Himax HA2825-2700 - 138g, 400W for $69.99

does anyone have any input? Do you have any other suggestions?
I can guarantee you'll like this when I'm done though. :]

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Cody
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PostSubject: Re: new beetleweight design...   Wed Jul 22, 2009 1:40 am

If not the Feiago, ive heard the turnigy are pretty good motors. Anything with your ant yet?
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rdubard
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PostSubject: Re: new beetleweight design...   Wed Jul 22, 2009 2:25 pm

I spent many hours scouring hobby city for a motor with very demanding specs (size, power, kV, amps, weight) and ended up with crap. I then found this amazing online comparison chart that, while still taking hours to sort through, yielded something I could use because the specs were really there (as opposed to guessing, as often is the case with HC) Notice that you can sort the data by any column--a real necessity, I think.

Maybe I just helped, maybe I just made your job harder.

Either way, this is a great resource for small motor hunting.

Have you looked at Scorpions?
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Cody
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PostSubject: Re: new beetleweight design...   Wed Jul 22, 2009 9:59 pm

Scorpions are supposed to be pretty nice but he needs an inrunner
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SenaiERI
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PostSubject: Re: new beetleweight design...   Wed Jul 22, 2009 10:24 pm

Great find rdubard. Thanks for the link.
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Dan Curhan
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PostSubject: Re: new beetleweight design...   Wed Jul 22, 2009 11:23 pm

OMGTHATCHARTISAMAZING!YOU'REMYNEWFAVORITE. bounce
thanks!

(I like the chart).

a scorpion can handle quite a load (525W from a motor that weighs 79g?!!) but it is an outrunner. I actually ordered a 2900 kv turnigy from hobby city, but if that doesn't work as well as I want it to, I could use something else...

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