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Old Mar 18, 2003, 05:02 PM
ed
Guest
n/a Posts
brushless? to hack or not to hack?

ive been looking into building a profile electric like this one.

http://www.wherzog.de/eflug/ProjektSukhoi.htm

the motor recomended is the hacker b20 l with 4:1 gearbox

if you are not famillar with this motor it is very expensive ie 215.00 cdn!

can you recomend somthing else that is more reasonable?

i have found this motor 109.00 cdn it is brushless and has a 4:1 gearbox.

http://www.hobby-lobby.com/brushless_mpjet.htm

anyone have a comparison of these two motors?

thanks


ededge2002@yahoo.ca

"He may look like Herb Winston ,
and he may sound like Herb Winston,
but don't let him fool you.
He really is Herb Winston and an idiot."
Old Mar 18, 2003, 06:12 PM
Matthew Orme
Guest
n/a Posts
Re: brushless? to hack or not to hack?

Try the RZ2500A at http://razormotors.com (couple of weeks for delivery
though)


"ed" <ededge2002@yahoo.ca> wrote in message
news:b6aa1ef0.0303181500.33f7b9c1@posting.google.c om...
> ive been looking into building a profile electric like this one.
>
> http://www.wherzog.de/eflug/ProjektSukhoi.htm
>
> the motor recomended is the hacker b20 l with 4:1 gearbox
>
> if you are not famillar with this motor it is very expensive ie 215.00

cdn!
>
> can you recomend somthing else that is more reasonable?
>
> i have found this motor 109.00 cdn it is brushless and has a 4:1 gearbox.
>
> http://www.hobby-lobby.com/brushless_mpjet.htm
>
> anyone have a comparison of these two motors?
>
> thanks
>
>
> ededge2002@yahoo.ca
>
> "He may look like Herb Winston ,
> and he may sound like Herb Winston,
> but don't let him fool you.
> He really is Herb Winston and an idiot."
>



Old Mar 19, 2003, 03:42 AM
The Natural Philosopher
Guest
n/a Posts
Re: brushless? to hack or not to hack?

Matthew Orme wrote:

> Try the RZ2500A at http://razormotors.com (couple of weeks for delivery
> though)



Yeah. Matthew is building a nice motor. the MINI AC1215 range is also in
the weight and power ballpark.

See www.aircraft-world.com for some good data sheets.

Mega 16/15 range is heavier, but you might be able to use direct drive
on them and save gearbox weight, also AXI 2808 on direct drive is possible.




>
>
> "ed" <ededge2002@yahoo.ca> wrote in message
> news:b6aa1ef0.0303181500.33f7b9c1@posting.google.c om...
>
>>ive been looking into building a profile electric like this one.
>>
>>http://www.wherzog.de/eflug/ProjektSukhoi.htm
>>
>>the motor recomended is the hacker b20 l with 4:1 gearbox
>>
>>if you are not famillar with this motor it is very expensive ie 215.00
>>

> cdn!
>
>>can you recomend somthing else that is more reasonable?
>>
>>i have found this motor 109.00 cdn it is brushless and has a 4:1 gearbox.
>>
>>http://www.hobby-lobby.com/brushless_mpjet.htm
>>
>>anyone have a comparison of these two motors?
>>
>>thanks
>>
>>
>>ededge2002@yahoo.ca
>>
>>"He may look like Herb Winston ,
>> and he may sound like Herb Winston,
>> but don't let him fool you.
>> He really is Herb Winston and an idiot."
>>
>>

>
>



Old Mar 19, 2003, 07:02 AM
Mathew Kirsch
Guest
n/a Posts
Re: brushless? to hack or not to hack?

ededge2002@yahoo.ca (ed) wrote in message news:<b6aa1ef0.0303181500.33f7b9c1@posting.google. com>...
> ive been looking into building a profile electric like this one.
>
> http://www.wherzog.de/eflug/ProjektSukhoi.htm
>
> the motor recomended is the hacker b20 l with 4:1 gearbox
>
> if you are not famillar with this motor it is very expensive ie 215.00 cdn!
>
> can you recomend somthing else that is more reasonable?
>
> i have found this motor 109.00 cdn it is brushless and has a 4:1 gearbox.
>
> http://www.hobby-lobby.com/brushless_mpjet.htm
>
> anyone have a comparison of these two motors?



I don't know much about the Hackers because the last time I looked,
the price tag nearly gave me a heart attack. I have the same problem
with Aveox and Kontronik too. Great motors, but I just can't justify
the cost.

Sorry I can't give you a direct comparison, but here's what to look
at:

1. The Kv, or RPM/Volt rating. If the two motors have similar RPM/Volt
ratings, you can pretty much use them interchangeably, since they are
similar in physical size. If they aren't, you're going to have to play
games with the battery and/or propeller and gearing to get comparable
output.
2. Maxiumum current and voltage ratings. You don't want to buy that
cheap motor, only to find out it can't handle as much as the Hacker
could.

If you buy on the basis of price alone, you buy twice...
Old Mar 19, 2003, 09:52 PM
ed
Guest
n/a Posts
Re: brushless? to hack or not to hack?

The Natural Philosopher <a@b.c> wrote in message news:<3E783A66.8090100@b.c>...
> Matthew Orme wrote:
>
> > Try the RZ2500A at http://razormotors.com (couple of weeks for delivery
> > though)

>
> Yeah. Matthew is building a nice motor. the MINI AC1215 range is also in
> the weight and power ballpark.
>
> See www.aircraft-world.com for some good data sheets.
>
> Mega 16/15 range is heavier, but you might be able to use direct drive
> on them and save gearbox weight, also AXI 2808 on direct drive is possible.

any other choices?
is the rz2500a (razormotors.com) motor good in the combo they offer
with phoenix 25 controler for 189.00

it is a savings over the hacker but does it measure up and how well?
> >>
> >>ededge2002@yahoo.ca

> >

Old Mar 20, 2003, 02:12 AM
The Natural Philosopher
Guest
n/a Posts
Re: brushless? to hack or not to hack?

ed wrote:

> The Natural Philosopher <a@b.c> wrote in message news:<3E783A66.8090100@b.c>...
>
>>Matthew Orme wrote:
>>
>>
>>>Try the RZ2500A at http://razormotors.com (couple of weeks for delivery
>>>though)
>>>

>>Yeah. Matthew is building a nice motor. the MINI AC1215 range is also in
>>the weight and power ballpark.
>>
>>See www.aircraft-world.com for some good data sheets.
>>
>>Mega 16/15 range is heavier, but you might be able to use direct drive
>>on them and save gearbox weight, also AXI 2808 on direct drive is possible.
>>

> any other choices?
> is the rz2500a (razormotors.com) motor good in the combo they offer
> with phoenix 25 controler for 189.00
>
> it is a savings over the hacker but does it measure up and how well?



You are asking the wrong person.

All these motors have been extensively debated on www.ezonemag.com

I suggest a little browsing through the pages. I *think* teh impression

I got was that those that tried the razor put it up there with the best

in terms of power to weight, and efficiency is very good too.


Whether it suits your application the best is a slightly different issue.

Frankly, if you were to give me all of the motors so far discussed, I
wouldn't give em back. Not one :-)They are all 'different' - e.g. l
would put AXI's in fast models where the direct drive suits best, the
mini AC and razor need gearing really but then they will haul
lightweight planes straight up.

Hackers and kontroniks are the same - need the gears really. Then there
is ASTRO who do small brushless - again very very good.




>
>>>>ededge2002@yahoo.ca
>>>>



 


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