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Old Dec 12, 2012, 06:14 PM
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Well i flew the vampire with the 12 blade fan and all i can say is. The sound is the best I have herd from all the high blade fans.

Also the sound was louder than the 10 blade fan. Normaly a perfectly balanced cs10 is to quite at a distance. With the 12 blade fan on the vampire the woosh sound is herd all the time. But take in considerarion I never flew the vampire on a cs10. Only other planes, and the vampire is a whooshy airframe. So that might have to do with some of the whoosh.
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Old Dec 12, 2012, 06:15 PM
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Oh ok, I guess that then makes a good comparison of "ExtremeRC housing with CS10/CS12".
And they will have different blade tip clearances, seeing the CS12 is a larger rotor diameter, so whilst that makes the test 'unequal' it is not unequal a test if the stated criteria is that "In an ExtremeRC alloy housing".
I would expect the CS12 then gets better thrust (tho hardly any amazing, or overly useful, amount) - seeing its tip clearance tolerance would be less... probably half (two thirds?) that of the CS10.
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Old Dec 12, 2012, 06:16 PM
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You can hear a CS10 Vampire from as far away as you can see it!! LOL
(well at least with 850W - though I fly it at probably 600w really)
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Old Dec 12, 2012, 06:24 PM
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Yeah thats what I thought. But i could only hear whoosh no motor whine. All my other cs10 just go silent to the point that you have no idea if the motor is runing or not.
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Old Dec 13, 2012, 07:32 PM
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Geat thread!
Just wondering how this setup
http://parkrcmodels.com/product_info...oducts_id=1407
would compare to the cs12/70mm with say an het or cyclone
I will be running a pair in my Dynam me 262 on 4s 5000mah 35-70c pack
not sure which way to go.
I would like the more scale sound and prefer take off performance,reliability, and maybe even longer flight times to all out speed.
Any advice would be appreciated.
thanks
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Old Dec 13, 2012, 07:43 PM
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Its going to pull to many amps at Wot, its beter to get lower KV motors or maybe a 6S set up.
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Old Dec 13, 2012, 09:05 PM
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Yes, you would be far better off getting the 6S versions of those fans and using 6S.
It would actually be overkill, as I run 5S 2300kv CS10's and that only needs 40% to 50% throttle to fly scale, and WOT is "overly fast" - which is a relative term... hehe.
But using CS10 with L2855-2300kv cost only $30 each, so it is a very cheap effective power combo.
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Old Dec 16, 2012, 12:01 PM
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I haven't had a chance to read through this entire thread.
But,
What is the hot setup for this fan?
What would be a good motor,esc,battery combo?
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Old Dec 16, 2012, 12:04 PM
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since the 12-blade is pretty much the same load as the 10-blade you can go by the results of the CS70 data thread

http://www.rcgroups.com/forums/showthread.php?t=1601868
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Old Dec 17, 2012, 01:52 AM
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When will rc lander add the 12 blade fan to there combo edf cs package???
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Old Dec 17, 2012, 06:11 PM
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Has anyone found any 1900 or 2000kv motors that fit this fan? Looking to have lower amp draw for a twin setup on 6S.
Thanks
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Old Dec 18, 2012, 12:50 AM
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Quote:
Originally Posted by 4stripes View Post
Has anyone found any 1900 or 2000kv motors that fit this fan? Looking to have lower amp draw for a twin setup on 6S.
Thanks
I found this one that comes close....

http://www.hobbyking.com/hobbyking/s...dproduct=21480
It should pull around 35A max on 6s.
I tested it's 3000kv brother and they are of good quality.

This inrunner should also do
http://www.hobbyking.com/hobbyking/s...dProduct=17725
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Old Dec 18, 2012, 06:37 AM
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Thanks Anlucas!
The 2000kv inrunner looks ideal. Not sure 1800kv would be powerful enough.
Cheers
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Old Dec 18, 2012, 10:36 AM
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the 2000kV inrunner should be well suited for 6s on the CS70 - but how will it dissipate heat w/out cooling holes?
I would worry about overheating (and bad efficiency, if not failure)
anybody running this motor?
thx for the link, Andreas, anyway
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Old Dec 18, 2012, 11:00 AM
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When I click on the link above for the 2000kv motor it takes me to one that is listed as a 11.1 max volt 3s motor. Is the link taking me to the wrong motor or are you saying that 3s motor is safe to run on 6s?
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