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Old Nov 15, 2012, 06:05 AM
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Change sun 12 bladed 70mm


Just noticed xflight now has 12 bladed 70mm CS in stock, nice!
Time for another thread of testing
cheers,
Nick.
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Old Nov 15, 2012, 10:09 AM
stingeragents is offline
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Crap. I just ordered a 10 blade last night
Old Nov 15, 2012, 10:54 AM
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Woah! I put 2 in the cart and decided to cancel....
Will let you guys do the testing. Too many things on my plate.

Looks interesting though.

They quote a 2200kv motor for 6S and 3400kv for 4S.

Could these 12bladers have less load on motors?

This way, the mainstream motors used for 5-6bladers could be an option.
Old Nov 15, 2012, 11:17 AM
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kV figures also too high for the 10-blade


the quoted kV numbers are wrong - for the 10-blade they similarly quote:

4s: 3400
6s: 2300

http://www.x-flight.com.hk/index.php...&more=&lang=en

so, if anything, the 12-blade will have a higher load from these figures (as one would assume anyway). We'll see, the blade pitch seems to taper more...

there are alloy spinner caps - only for the 12-blade.
- should fit the 10-blade as well, no?

cheers
Clemens
Old Nov 15, 2012, 11:00 PM
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Quote:
Originally Posted by mopetista View Post
the quoted kV numbers are wrong - for the 10-blade they similarly quote:

4s: 3400
6s: 2300

http://www.x-flight.com.hk/index.php...&more=&lang=en

so, if anything, the 12-blade will have a higher load from these figures (as one would assume anyway). We'll see, the blade pitch seems to taper more...

there are alloy spinner caps - only for the 12-blade.
- should fit the 10-blade as well, no?

cheers
Clemens
Hopefully, I ordered 6 of them...and some fans

Should go nice in WindRider
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Old Nov 16, 2012, 01:04 AM
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Quote:
Originally Posted by mopetista View Post
so, if anything, the 12-blade will have a higher load from these figures (as one would assume anyway).
cheers
Clemens
Blade count has nothing to do with the load of the fan. :-) (I assume they have designed a new 12blade unit and not just addes 2 blades to the 10blade unit.)
Old Nov 16, 2012, 01:09 AM
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They changed the blade and the pitch.
Old Nov 16, 2012, 03:18 AM
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Quote:
Originally Posted by anlucas View Post

They quote a 2200kv motor for 6S and 3400kv for 4S.

Could these 12bladers have less load on motors?

.
Looks like it. The picture with the blades show a shallower angle.

Got 6pcs on the way plus 2 metal spinners.

Foo
Old Nov 16, 2012, 03:22 AM
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The HET 2W-20 might be perfect for 4S option.
Old Nov 16, 2012, 03:53 AM
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Quote:
Originally Posted by fooyukvoon View Post
The HET 2W-20 might be perfect for 4S option.
Could be, but it has to be proven in practice....
Old Nov 16, 2012, 04:55 PM
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Quote:
Originally Posted by Shorty View Post
Just noticed xflight now has 12 bladed 70mm CS in stock, nice!
Time for another thread of testing
cheers,
Nick.
12 blade 70mm fan = $16
alloy spinner = $2
+ shipping to US

fan = 59gr , alloy spinner = 16gr -> 75gr

who can resist this deal ???

which one is better deal ? 10 blade or 12 blade 70mm fan in terms of sound and performance ????


:-)
Old Nov 16, 2012, 08:57 PM
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At these prices one of each?

Then do your own testing..
Old Nov 17, 2012, 10:44 AM
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+1, It looks to have a strong pitch on the blade tips?
Old Nov 17, 2012, 06:42 PM
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To me it looks like the 12 blade has less pitch at the tip. The 12 blade also seems to have that hook type tip. Also the blades on the 12 blade look as if they are forward sweep while the blades on the 10 blade sweep back wards.


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