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Old Jan 30, 2011, 08:53 PM
2014 EDF JET JAM We be Jamming
Kevin Cox's Avatar
St. Louis Intl, Missouri, United States
Joined Jan 1997
6,773 Posts
The HW730 rotor on 12S 3700mah pack (70-80% charge) delivers 2279watts (53amps @ 43volts (46.8 static)). This was without an intake lip or exhaust. I like the low current draw.

Time for a test mule
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Old Jan 31, 2011, 04:23 AM
Senior Member
Arngeir Blakseth's Avatar
Molde, Norway
Joined Jan 2001
2,448 Posts
This was with a 880Kv motor? Amps are so low that you could possibly use the 1100Kv motor as well for higher performance.
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Old Jan 31, 2011, 04:16 PM
2014 EDF JET JAM We be Jamming
Kevin Cox's Avatar
St. Louis Intl, Missouri, United States
Joined Jan 1997
6,773 Posts
Yes, it is 880kV. I was thinking in terms of a twin powered by a single 12s 5000mah pack or a single fan powered by 2600 or 3000mah pack.
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Old Feb 01, 2011, 04:45 AM
PH.D in Scratchbuilding
Denmark, Region Zealand, Holbaek
Joined Sep 2005
327 Posts
Should get a shipment with 12s 5000 Nanotech this week..... then I just have to make the exhaust duct for the Savex F-16.....

Setup will be Hayoe 4.5'' with std. rotor, Scorpion 4035-560, Turnigy superbrain 100 amp, 12s 5000 Nanotech.

I'll get back when I have the test result....
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Old Feb 04, 2011, 11:32 PM
that's how i roll!!
parkfly27's Avatar
United States, AZ, Scottsdale
Joined Feb 2008
339 Posts
hi everyone,

I just picked up the haoye 5-inch fan at a fly-in last weekend, and i'm hoping to use it with the 880K/V turnigy heli motor on 10S. Do you think this is too much for the motor? I'd like to keep the amps not more than 100-120 so i can use the 5000 packs i have. From reading this thread it seems like the motor should handle it, but i'd still like to see what the experts think. The fan will (eventually) be going in a byron f-16 i am re-furbishing.
Thanks!!
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Old Feb 04, 2011, 11:36 PM
DELTAS RULE
corsair nut's Avatar
tehachapi, CA
Joined Jan 2006
21,772 Posts
hey man! long time no see. been a couple years eh ( i used to come out and watch you and the other guys fly at the school when i was there for work..)

well, depends what rotor....presonally....the stock hoaye 5" rotor is going to be a whole lot of load for the 880.. even on 10s. you may want to try a turbax rotor, that would keep you around 95-100A. the stock hoaye 5" rotor is going to be a solid 130A on 10s, with good strong packs..
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Old Feb 05, 2011, 07:39 AM
Keith Thomas
keithtsr's Avatar
United States, NM, Portales
Joined Feb 2010
1,044 Posts
There is a thread on the Haoye fans with the Turbax rotor. http://www.rcgroups.com/forums/showthread.php?t=1324088 I don't know if I did that right. From what I have been playing with I think you'll smoke the motor with that rotor.
KT
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Old Feb 05, 2011, 08:00 AM
Lee Liddle
Knife Liddle's Avatar
Carrollton, Tx
Joined Dec 2006
7,942 Posts
Quote:
Originally Posted by keithtsr View Post
There is a thread on the Haoye fans with the Turbax rotor. http://www.rcgroups.com/forums/showthread.php?t=1324088 I don't know if I did that right. From what I have been playing with I think you'll smoke the motor with that rotor.
KT
KT, this is that thread.
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Old Feb 05, 2011, 08:18 AM
Keith Thomas
keithtsr's Avatar
United States, NM, Portales
Joined Feb 2010
1,044 Posts
Sorry Lee, I think my brain is frozen still and I stink at computers!!
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Old Feb 05, 2011, 10:07 AM
Lee Liddle
Knife Liddle's Avatar
Carrollton, Tx
Joined Dec 2006
7,942 Posts
LOL, no prob.
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Old Feb 05, 2011, 11:52 AM
Registered User
Orange Park,FL.
Joined Aug 2007
205 Posts
!That was funny!
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Old Feb 05, 2011, 02:28 PM
that's how i roll!!
parkfly27's Avatar
United States, AZ, Scottsdale
Joined Feb 2008
339 Posts
Hey Corsair, it sure has been a while! we all really enjoyed having u. are ya going to be in the area again anytime soon?

Thanks for the help guys, sounds like the turbax rotor may be the solution, though it means more $$. I'd just like to stick with the '$70 motor and fan combo'

Do you think it would work to use the 880K/V motor with the stock 5-inch fan on 8S or 9S? I'm not trying to tear the wings off here... so i'd be happy with even 10-lbs thrust. Also the air is a bit thinner where i fly (our field is at 4000 feet ASL) so maybe the thinner air would make it suck less amps??

Thanks again; i appreciate the input.
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Old Feb 09, 2011, 05:34 AM
Registered User
Samjet's Avatar
Joined Mar 2010
112 Posts
single 90 mm 3000 watts Falcon 120

Hi Guys. What a great thread.

I have ordered all the parts for the hayoe fan with turbax rotor but I am still waiting for them to arrive.

One thing I still need to order is the 6 mm shaft which used to be available at EJF.com. Does anybody know where to get one?

Another question:
I already have a het 9305 90 mm fan with a arc 36-75-1.5 producing around 3000-3400 watts on 12 s 5000 mah.(don't got the exact number). I am getting slightly impatient so I thought I might try this out.

Will it be able to fly my Falcon 120?

Thanks
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Old Feb 09, 2011, 11:03 AM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,612 Posts
your talking at least a 16lbs plane ...might be a bit much . think you need 4000 watts for a Falcon 120 .
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Old Feb 09, 2011, 11:09 AM
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Samjet's Avatar
Joined Mar 2010
112 Posts
Quote:
Originally Posted by AIR SALLY View Post
your talking at least a 16lbs plane ...might be a bit much . think you need 4000 watts for a Falcon 120 .
Thx Sally. I think you are right but it will only be temporary until I get the Haoye/turbax fan ready. I just need to know if it can get airborn with decent speed (90 mph) with my setup. Any idea if that's possible?

Does anybody know where to buy the 6 mm shaft for the turnigy 880kv motor?
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