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Old Feb 25, 2013, 06:16 AM
Aaron
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Australia
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Would a 70a Turnigy Trust esc be a good match for a CS12 blade powered by a Cyclone Power 2800 on 4S?
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Old Feb 25, 2013, 08:19 AM
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United States, TX, Grand Prairie
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Quote:
Originally Posted by Realms View Post
Would a 70a Turnigy Trust esc be a good match for a CS12 blade powered by a Cyclone Power 2800 on 4S?
Yeap, got similar combo
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Old Feb 25, 2013, 05:48 PM
Aaron
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Australia
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Originally Posted by erh7771 View Post
Yeap, got similar combo
Thanks for the reply mate. What's your setup?
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Old Feb 26, 2013, 08:41 PM
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Originally Posted by mopetista View Post
what I can say is that the L2226 fits in, I have one running in the 12-blade shroud

http://www.hobbyking.com/hobbyking/s...utrunner_.html

What setup do you have, i have the same motors ordered, but just on a good guess.
What i need are thrust figures on a good 40c+ 4s battery.

o, and is a 60amp esc enough or do i have to buy a bigger one.. i have a plush.

I have some 70mm 6 blade fans from hobbyking, could this fan blade fit inside the shroud.. can someone try it out please?
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Old Feb 26, 2013, 08:45 PM
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Originally Posted by PeterVRC View Post
Also good to have some rotor gap to the motor because it gives more safety leeway to outrunners wiring trying to come out 'forwards' !
One L2855 I had managed to get a shave from the rotor hub edge!

I haven't seen any loctite on any L2855 cone, so if it is hard to get off it must just be 'stuck', hehe. 'Reverse thread'... just remember that so you turn it opposite to a normal thread (like gas fittings do).
I guess they do that to have it "do itself up" when used on any normal direction rotating fan unit - rather than undo itself somehow!

...
wow, thanks i was fighting with that one... :-)
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Old Feb 27, 2013, 12:54 AM
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Quote:
Originally Posted by RimRc View Post
What setup do you have, i have the same motors ordered, but just on a good guess.
What i need are thrust figures on a good 40c+ 4s battery.

o, and is a 60amp esc enough or do i have to buy a bigger one.. i have a plush.

I have some 70mm 6 blade fans from hobbyking, could this fan blade fit inside the shroud.. can someone try it out please?
My initial use of the L2226 was in a 70mm 6blade shroud with the 10blade. It's not ideal though.

I just checked, the 12blade is bigger and it's too tight in this 70mm 6blade shroud so no go without shaving the 12blade rotor.

The new 12blade shroud should be used with the L2226.
I would think that the 60amp ESC would be borderline for the L2226. A 70amp would be a safer option.
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Old Feb 27, 2013, 03:54 AM
310mph Kolibri T25 Swist
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Sverige, Kronobergs Lšn, Ljungby
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I'm setting up a RC-Lander Panther with the CS70 12blade fan. Would a Mega 16/15/3 on a 4S pack do well? I do not aim for supersonic performance, rather a scaleish more relaxed envelope capable of basic aerobatics with a lighter AUW.

I remebmer flying the old Kyosho T33 for 10min on a 8cell RC2400 pack using a Hacker B40 motor, do I really need the advertised 4000mAh capacity for this little bird?

Thinking this would be pretty much equal to the setup I'm pondering
Vampire CS12 70mm 4S (3 min 9 sec)
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Old Feb 27, 2013, 05:45 AM
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Vienna, Austria
Joined Apr 2007
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12-blade rotor in 6-blade housing; 2226 motor 3s/4s

Quote:
Originally Posted by anlucas View Post
My initial use of the L2226 was in a 70mm 6blade shroud with the 10blade. It's not ideal though.

I just checked, the 12blade is bigger and it's too tight in this 70mm 6blade shroud so no go without shaving the 12blade rotor.

The new 12blade shroud should be used with the L2226.
I would think that the 60amp ESC would be borderline for the L2226. A 70amp would be a safer option.
FWIW, I installed a 2226 in a 12-blade shroud (must be well-centered but it is fine, and gets lots of air, so I agree it's a good fit), but since the amps were too high for my taste even on 3s (almost 50 on fresh lipo) I put the 10-blade rotor on reducing amps by some 8%, and that's now ok for my 2200mA lipos - it will be quite a lot more than 60A on 4s - just as you have written (assuming the lipo delivers. An option would be, as outlined, to use a 10-blade rotor. Or the 2800kV motor to stay in the 60A area even with a good lipo...)
The 12-blade rotor I put in a 6-blade housing. A tight fit, but it worked. No high power (450W) and pretty smooth running, so it does not "need" much more space. but it fits. So I would say from my experience: 12-blade rotor might work but well-balanced and not high power, you don't want to risk the blades rubbing on higher power and when some vibrations make the motor/rotor girate and occupy more space, with disastrous results.
cheers
Clemens
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Old Feb 27, 2013, 05:58 AM
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Vienna, Austria
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Quote:
Originally Posted by henke View Post
I'm setting up a RC-Lander Panther with the CS70 12blade fan. Would a Mega 16/15/3 on a 4S pack do well? I do not aim for supersonic performance, rather a scaleish more relaxed envelope capable of basic aerobatics with a lighter AUW...
Henke, I am just building a light Panther myself - the key is to have as little weight in the rear as possible, otherwise you will need either a big lipo, or a lot of lead up front.
The Mega 16/15/3 is perferct in terms of weight (76g) but with 3000kV you could only run it on 3s (at around 50 amps) IMO because it wouldn't handle 70A on 4s - or would it? Even if it would, you'd have to carry around a heavy lipo...
If you keep the plane light, I think that 3s and 50A would actually be enough, at least for me (I will use a 70g 2500kV heli outrunner, some 37A on 4s turning the 10-blade Change Sun, hoping to get CG w/out lead using only 2200mA 4s...).

Hmm - the 16/15/4 would not help much: 2200kV would be only some 38A max on 4s, so that's about the same as the 16/15/3 on 3s. But it would be a low-amp option similar to the popular L-2855 2300kV on 4s.

I am running a HK Vampire on 400W on 3s and since it's light, I am pretty happy with the performance (and sound :-) 500+W could make a very light Panther move along nicely too.

More expertise can be tapped into at the Panther thread
http://www.rcgroups.com/forums/showthread.php?t=901932

PS: Don't forget to open up the exhaust to some 59mm or the 12-blader will not perform, and open the bottom cheater (or find some other way to get air in - the Change Suns require much better airfeed than, say, the 5-blade Lander fan)
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Old Feb 27, 2013, 06:55 AM
310mph Kolibri T25 Swist
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Sverige, Kronobergs Lšn, Ljungby
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Quote:
Originally Posted by mopetista View Post
Henke, I am just building a light Panther myself - the key is to have as little weight in the rear as possible, otherwise you will need either a big lipo, or a lot of lead up front.
The Mega 16/15/3 is perferct in terms of weight (76g) but with 3000kV you could only run it on 3s (at around 50 amps) IMO because it wouldn't handle 70A on 4s - or would it? Even if it would, you'd have to carry around a heavy lipo...
If you keep the plane light, I think that 3s and 50A would actually be enough, at least for me (I will use a 70g 2500kV heli outrunner, some 37A on 4s turning the 10-blade Change Sun, hoping to get CG w/out lead using only 2200mA 4s...).

Hmm - the 16/15/4 would not help much: 2200kV would be only some 38A max on 4s, so that's about the same as the 16/15/3 on 3s. But it would be a low-amp option similar to the popular L-2855 2300kV on 4s.

I am running a HK Vampire on 400W on 3s and since it's light, I am pretty happy with the performance (and sound :-) 500+W could make a very light Panther move along nicely too.

More expertise can be tapped into at the Panther thread
http://www.rcgroups.com/forums/showthread.php?t=901932

PS: Don't forget to open up the exhaust to some 59mm or the 12-blader will not perform, and open the bottom cheater (or find some other way to get air in - the Change Suns require much better airfeed than, say, the 5-blade Lander fan)
With proper throttle management I think the mega motor will do fine at 70A. I will however dig a little more before buying a battery pack.
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Old Feb 27, 2013, 10:13 PM
ZR2
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United States, FL, Miramar
Joined May 2010
42 Posts
Quote:
Originally Posted by Knife Liddle View Post
Sorry not yet. I blew the esc because I forgot to set PWM and timing. Didn't blow it at 49k,but I used a lighter rotor and hit sync wall above 50k and blew the esc. I'll have replacement escs mid week and will do a better test then. I plan to test the 12 above 50k and check thrust there. I'm guessing between 7.5 and 8lbs. That would put the efflux speed over 325mph.
Lee, Did you by any chance, run this setup again? I tested on of these rotors and my results are significantly different. I'm going to test again this weekend but here's what I got from Castle ICE logs (not always accurate when it comes to current but RPMs should be pretty accurate)....

Motor KV= 1915 (Unloaded), TJ70 Installed in PZ Habu with 57mm thrust tube exit diameter
Thunderpower 65C 3300mah packs

CS10 on 7S:
Voltage (Under Load) = 25.33 (7S @ 3.62V/Cell)
Current = 79.2A
Power = 2006W
RPM = 43097

CS12 on 7S:
Voltage (Under Load) = 25.48V (7S @ 3.64V/Cell)
Current = 85.5A
Power = 2179W
RPM = 43073

CS12 on 8S:
Voltage (Under Load) = 28.76V (8S @ 3.6V/Cell)
Current = 98.8A
Power = 2841W
RPM = 48961

ICE data shows a hair under 49K rpm at 2841W.

Thanks.
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Old Feb 27, 2013, 11:08 PM
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United States, CA, Santa Clarita
Joined Aug 2009
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They are not normally stocked (yet), But I can have the Mega 16-40-1.5S (1915kv) made with a 4mm or 5mm shaft.
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Old Feb 28, 2013, 12:42 AM
The Last Question
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United States, UT, West Valley City
Joined Oct 2006
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Originally Posted by efflux RC View Post
They are not normally stocked (yet), But I can have the Mega 16-40-1.5S (1915kv) made with a 4mm or 5mm shaft.
Yeah I was looking at that motor...or the 16-40-1.5 RC. I'll be running 6s in an L39. I'm also working on rewinding a Hoffman Beast to around 2000kv. My guess is the Mega would be more efficient though. I was originally going to run a Storm 70 on 5s in it but then decided I wanted the whoosh!!!
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Old Feb 28, 2013, 02:11 AM
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Quote:
Originally Posted by Entropy76 View Post
Yeah I was looking at that motor...or the 16-40-1.5 RC. I'll be running 6s in an L39. I'm also working on rewinding a Hoffman Beast to around 2000kv. My guess is the Mega would be more efficient though. I was originally going to run a Storm 70 on 5s in it but then decided I wanted the whoosh!!!
The 16/40/1.5RC is 2270kv.
http://www.effluxrc.com/MEGA-16-40-1...16-40-15RC.htm

The 16/35/1.5S is 2200kv
http://www.effluxrc.com/MEGA-16-35-15-S-MM16-35-15S.htm

The 16/40/1.5SEC is 1800kv
http://www.effluxrc.com/16-40-15-SEC...6-40-15SEC.htm

The new 16/45/1.5R is 2102 and the 16/45/1.5RE is 1985. they are not on my website yet. They are a bit more expensive as well.

There are more KV options and 3.17, 4, and 5mm and shafts (for many of them) available.

Please PM or email me for a special motor.
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Old Feb 28, 2013, 04:43 AM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
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1800Kv on 6s is a pretty mild setup so 1900Kv would not be much hotter.
The HET 3W25 is 1810Kv and pulls 43-44 amps on 6s in the CS12, 900+watts, very nice setup for a pair of 2200 3s packs.

I am getting a batch of custom 3W25's made for me with 4mm shafts right now, should have them in 2 weeks time.
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