HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jun 01, 2014, 02:08 PM
Wonderfully Wicked
The Don's Avatar
Willoughby, Ohio
Joined Jan 2002
13,010 Posts
Quote:
Originally Posted by sonny1 View Post
You da man Don, thank you.

Sonny
Just tested for you with a 3S 1800 lipo.

Wicked 2700 Plus motor in CS64mm 12 blade fan
3S lipo: 278 watts, 25.6 amps, 10.9 volts, 18 ounces thrust

This was with inlet lip installed and no thrust tube on the exit.

Don
The Don is online now Find More Posts by The Don
RCG Plus Member
Sign up now
to remove ads between posts
Old Jun 01, 2014, 02:44 PM
Kool Kats Fly RC!! AMA 30462
sonny1's Avatar
United States, CA, Baywood-Los Osos
Joined Feb 2009
2,786 Posts
Quote:
Originally Posted by The Don View Post
Just tested for you with a 3S 1800 lipo.

Wicked 2700 Plus motor in CS64mm 12 blade fan
3S lipo: 278 watts, 25.6 amps, 10.9 volts, 18 ounces thrust

This was with inlet lip installed and no thrust tube on the exit.

Don
Prognosis Don? Is the EF-16 flyable with those stats? I'm flying my current plane on 3S 2200 25C w/ a 4800 on a Hyperflow, and am getting basically the same stats you list for the Wicked 4800, (31 amps, 340 watts, around 30 oz AUW, not sure about thrust), so 278 watts seems to indicate that this combo might be a little anemic in the EF-16 on 3S? Am I interpreting this correctly? Have you considered testing the HET Typhoon 2W-20, 3400kv on 3S in the CS-12? Someone recommended that motor to me for 3S use a while back.
Whatever the answer, I really do appreciate your going to the trouble of testing that combo at my request. However, it seems to have raised more questions in my mind than provide answers. Those stats might be more appropriate for the GP L-39 rather than the EF-16. If you think the EF-16 will fly with that set up, (remember, I'm more interested in stability & wooosh than speed), then I'll be ordering one soon, otherwise it's back to the drawing board.

Sonny
sonny1 is offline Find More Posts by sonny1
Reply With Quote
Old Jun 01, 2014, 02:53 PM
Registered User
United States, CA, Anaheim
Joined Aug 1999
1,292 Posts
I haven't used a thrust tube as of yet. Does it make a big difference? I have them in the kit box, just haven't used them.
Gene is offline Find More Posts by Gene
Reply With Quote
Old Jun 01, 2014, 03:03 PM
Wonderfully Wicked
The Don's Avatar
Willoughby, Ohio
Joined Jan 2002
13,010 Posts
It is on the low side for my taste. My last Wicked powered EF-16 was 16 ounces less lipo so this would be about 17 ounces due to the bigger motor and then add in your lipo weight. A 3S 1600 would be say 5 ounces so you are looking at ~22 ounce flying weight so it would work as it is ~.8 thrust to weight.

A 2W-20 will not fit into this fan as it only will hold a 20mm diameter inrunner. Now I do have a few prototype Wicked 3200 KVs sitting around I could try one of those out for you on 3S.
The Don is online now Find More Posts by The Don
RCG Plus Member
Old Jun 01, 2014, 03:13 PM
Kool Kats Fly RC!! AMA 30462
sonny1's Avatar
United States, CA, Baywood-Los Osos
Joined Feb 2009
2,786 Posts
Quote:
Originally Posted by The Don View Post
It is on the low side for my taste. My last Wicked powered EF-16 was 16 ounces less lipo so this would be about 17 ounces due to the bigger motor and then add in your lipo weight. A 3S 1600 would be say 5 ounces so you are looking at ~22 ounce flying weight so it would work as it is ~.8 thrust to weight.

A 2W-20 will not fit into this fan as it only will hold a 20mm diameter inrunner. Now I do have a few prototype Wicked 3200 KVs sitting around I could try one of those out for you on 3S.
I was poking around on your site looking for something in the 3000kv range, but didn't see the 3200. If you test one of those and it shows better stats I would say "sold", but you're right about the figures for the 2700, they seem low even for my mild tastes. If you do test the 3200 let me know. Thanks again for your time and patience Don.

Sonny

Edit: BTW; I'll be sending in a Wicked 5400 w/ stand off adapter w/ a fan out of a 55mm F-35 I have for dynamic balancing soon whether this 3S, CS fan adventure works out or not. I'll email ahead before shipping it, thanks again.

S
sonny1 is offline Find More Posts by sonny1
Last edited by sonny1; Jun 01, 2014 at 03:18 PM. Reason: BTW:
Reply With Quote
Old Jun 01, 2014, 05:18 PM
Wonderfully Wicked
The Don's Avatar
Willoughby, Ohio
Joined Jan 2002
13,010 Posts
The 3200 were prototypes I only have 2 of them if I recall correctly. Will let you know whet I get. Does the 55mm fan you have have an adapter for 3mm shaft motor?
The Don is online now Find More Posts by The Don
RCG Plus Member
Old Jun 01, 2014, 05:42 PM
Kool Kats Fly RC!! AMA 30462
sonny1's Avatar
United States, CA, Baywood-Los Osos
Joined Feb 2009
2,786 Posts
Quote:
Originally Posted by The Don View Post
The 3200 were prototypes I only have 2 of them if I recall correctly. Will let you know whet I get. Does the 55mm fan you have have an adapter for 3mm shaft motor?
Good question, I haven't taken it out of the plane yet, (it's "stock" whatever that is, it's a used plane of unknown manufacture; possibly JPower); will report back on that. If the 3200's work I'll take both if available, plus a 64mm CS-12 for each, (plus stand off's, adapters, balancing, etc, etc).

Sonny
sonny1 is offline Find More Posts by sonny1
Reply With Quote
Old Jun 01, 2014, 07:23 PM
Wonderfully Wicked
The Don's Avatar
Willoughby, Ohio
Joined Jan 2002
13,010 Posts
Here is what the 3200 produced on a 3S 1800 lipo.

410 watts , 39.5 amps, 25 ounces thrust
The Don is online now Find More Posts by The Don
RCG Plus Member
Old Jun 01, 2014, 09:11 PM
Kool Kats Fly RC!! AMA 30462
sonny1's Avatar
United States, CA, Baywood-Los Osos
Joined Feb 2009
2,786 Posts
Quote:
Originally Posted by The Don View Post
Here is what the 3200 produced on a 3S 1800 lipo.

410 watts , 39.5 amps, 25 ounces thrust
Wow, that's pushing it What is the capacity of that motor? Very similar to stats you list for the HET 6404 4-blade 64mm w/Wicked 4000 Plus on 3S.
Thrust is better, yes, but at nearly 40 amps it would be hard on a 40A esc, (best to use a 60A), it would also ultimately be hard on the motor and produce a lot of heat at 400 watts, (and need minimum 30C or 40C lipos). Not an "ideal" 3S set up by any means, but it would conceivably work, (and have that woosh..........or I could just break down and fly 4S). That seems to be the obvious solution, use the 2700 on 4S and just quit my whining!
Oh well, thank you so much for doing that footwork, obviously I need to ponder my options further. Just for grins Don, what do you think? Should I even consider it? I do have a 60A esc, so I could go for it and just hope for the best, (or NOT!!)..
In the meantime I'll take the 55mm out of that F-35 this evening and get back to you on the adapter size. Thanks again,

Sonny
sonny1 is offline Find More Posts by sonny1
Reply With Quote
Old Jun 01, 2014, 10:27 PM
Wonderfully Wicked
The Don's Avatar
Willoughby, Ohio
Joined Jan 2002
13,010 Posts
I personally do not think high blade count and and 3S are the way to go. These fans are very sensitive to KV changes. I was surprised to find that going from 2700-3200 was such a jump in amps and watts. I know Sammy70's EF-16 on the 4S setup is about 90 mph when I dopplered it. You can always throttle back.
The Don is online now Find More Posts by The Don
RCG Plus Member
Old Jun 01, 2014, 11:44 PM
Kool Kats Fly RC!! AMA 30462
sonny1's Avatar
United States, CA, Baywood-Los Osos
Joined Feb 2009
2,786 Posts
Quote:
Originally Posted by The Don View Post
I personally do not think high blade count and and 3S are the way to go. These fans are very sensitive to KV changes. I was surprised to find that going from 2700-3200 was such a jump in amps and watts. I know Sammy70's EF-16 on the 4S setup is about 90 mph when I dopplered it. You can always throttle back.
Unfortunately I agree, 3S and high blade count fans just don't seem to mix well. Thanks for taking so much of your time to test the theory. I may just forget the CS fans and go with another Hyperflow, (I think I have one in a box somewhere), or see if I can come up with a P3 Squall Sport fan like someone suggested earlier and stick with 3S, (that fan is supposed to have a "woosh" sound to it). Decisions, decisions....Back to the drawing board, and thanks so much again for your time Don.

Sonny
sonny1 is offline Find More Posts by sonny1
Reply With Quote
Old Jun 02, 2014, 07:09 AM
Registered User
Madison, MS
Joined Oct 2006
720 Posts
Quote:
Originally Posted by The Don View Post
Just tested for you with a 3S 1800 lipo.

Wicked 2700 Plus motor in CS64mm 12 blade fan
3S lipo: 278 watts, 25.6 amps, 10.9 volts, 18 ounces thrust

This was with inlet lip installed and no thrust tube on the exit.

Don
Hey Don,

If you still have it mounted up would you run it again without the intake ring? I doubt that this fan is much different but the CS70 would loose about 50% of its thrust without the intake ring. You would get some of it back when it was installed in an airframe without it but not all.

Thanks,
D
dpowellmeii is offline Find More Posts by dpowellmeii
Last edited by dpowellmeii; Jun 02, 2014 at 07:40 AM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Hobby People's New Sale Cessna 182 Hot Online Deals 0 Sep 12, 2006 02:04 PM
Hobby People's Phase Combo's Khosravi 3D Flying 4 Nov 05, 2005 11:54 PM
Hobby People's Wild Wing for $19.95 SteveO Flying Wings 5 Jun 03, 2005 02:44 PM
Hobby People's Summer Catalog Greg Covey Electric Plane Talk 5 Jul 12, 2001 01:14 PM