Have I the 1100KV motor or 850kv motor? pole? gear ratio?

[LyNiX]

Hello every one!

First question:
I dont know wich motor i have, 850KV or 1100kv...
I ordered from flying-hobby.com the pack with the 1100KV but...i ask for the 850KV.
But when i look this picture:
http://www.helitric.com/hurricane/IMG_1726.jpg
It's difficul to recognize. One the left they say it's the (new???) 850KV and the bigger, on the right, the 1100KV.

And this is my motor:
PICTURE 1 (http://www.helitric.com/hurricane/PICT0018.JPG)
PICTURE 2 (http://www.helitric.com/hurricane/PICT0023.JPG)
PICTURE 3 (http://www.helitric.com/hurricane/PICT0024.JPG)

The case lenght = 47mm as this shop say here (http://www.infinity-hobby.com/main/product_info.php?cPath=36_40&products_id=817&osCsid=05f19d01ddd0e647683f6ba3218dbe53)
But this motor is different from this one (http://flying-hobby.com/catalog/product_info.php?cPath=18_76&products_id=111)
No?

So maybe I have a new version of the 850KV with bronze colored top and bottom and a chrome center? (like the 1100KV)

Second question:
How many poles have the 1100KV motor? the 850KV motor?

Third question:
What the "gear ratio" with a 16T pinion motor + 42T and 61T for the main gear. (?:1)

Thank you!
Bye bye!

Jerome from France.

[Helibelly]

Hi, you have the one on the left, the new type 850kv motor.
Eric.

[LyNiX]

Thanks helibelly!
But there is how many poles on this motor?
And which gear ratio?

[Helibelly]

Hi, sorry I forgot to answer your other questions! I think it is a 10 pole motor (850 kv), but not certain. To calculate headspeed, which I presume is why you want the gear ratio, use this link: http://www.readyheli.com/Online_Headspeed_Calculator_s/81.htm
I hope this helps,
Eric.

[LyNiX]

ty again :)

but if I want the gear ratio, it's for my micro power system (e-logger) for calculate the RPM.
But i found it 8.43 with the 16T ;)

So now...i think i'll be able to know my head speed! :D