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This is the BIG one! A quality EDF unit for anyone who is serious about large Scale EDF modeling. Expect 11lb+ thrust on 10~12S 30C with an 850-1000Kv motor.
Made with 30% FRP and dynamically balanced, this is a performance EDF unit that produces much more power when compared to other fans of similar size.
Material: Carbon Fiber Reinforced Nylon, Aluminum Outside Diameter: 129.5mm Inside Diameter: 120.5mm Motor size: 52mm diameter max Motor Bolt pattern: 22~44mm (Variable) Motor Shaft sizes: 8mm, 6mm or 5mm (3 Shaft adapters included) Weight: 332 grams Rotor: 4 blade (119mm) dynamically balanced Max RPM: 45,000
Note. While everyone talks about balancing blades, we recommend you focus more attention on ensuring your motor is seated in the middle of the fan, the screws are evently tightened, the collet adapter is pressed firmly and squarely on the shaft and your motor spins true.
Hi there jonathan, that is true most people complain about adapters not being true in the shaft, and other times incorrect on the fan unit itself, but there is a simple fix for this, you need to first assemble the whole unit together hand tight(enabling you to spin the motor freely from the adapter, and the adapter independently of the fan)then have it hooked up to an esc and slowly rev it up to about 1/4 throttle , no more as the fan may come off, and if you find vibration /imbalance, just turn the fan unit a few mm in any direction, until you find the sweet spot, you will eventually find the perfect balanced spot, then ensuring that the motor does not spin ,tighten the nut holding the fan unit firmly. Trust me , it works, having done more than 60 units myself there has never been one i couldn't "balance", good luck!
Lion, It is ok to try edf balancing in your way, but sometimes just turn the edf blades will not balance the edf. I like the conventional way adding or removing plastic material from blades/hub. Wow, 60 edf's ?!? i have 4 years using edfs and i can count only -20 edfs in my list...
Hi there jonathan, that is true most people complain about adapters not being true in the shaft, and other times incorrect on the fan unit itself, but there is a simple fix for this, you need to first assemble the whole unit together hand tight(enabling you to spin the motor freely from the adapter, and the adapter independently of the fan)then have it hooked up to an esc and slowly rev it up to about 1/4 throttle , no more as the fan may come off, and if you find vibration /imbalance, just turn the fan unit a few mm in any direction, until you find the sweet spot, you will eventually find the perfect balanced spot, then ensuring that the motor does not spin ,tighten the nut holding the fan unit firmly. Trust me , it works, having done more than 60 units myself there has never been one i couldn't "balance", good luck!
Okay, so I'm reading a lot of posts saying the adapters are not correct, and several saying they machined their own adapters. That said, those that are doing their machining, can you make them for others? I have a friend with a Falcon 120, and wanting to go with one of these fans, but the bad adapters make me fidgity...can someone hook me up if we decide to go this route?
I've got one in a GWS A-4. The 4mm shaft adapter fits just fine. I static balanced the fan and "clock method" after mounting to motor (turnigy 2836 3000kv). I'm getting close to 700w and it sounds good.
A question, not directly about this fan but closely related:
What ever happened to the EDF-120 brushless motor HK was going to market? There's a HobbyKing Daily Video newsletter uploaded to youtube on Sep 19, 2011 showing new products and hosted by Scott. I can't find the motor anywhere on this site. Thanks.
I have this EDF unit with a HET-700-98-935Kv on a Falcon 120 and 2xZippy 5000mAh 40C=12cells.After 3 minutes of normal flight at 31 degrees Celcius the Lipos fall from 97% to 14% of power energy.This is dangerus for the batteries.Does anyone knows if the 5000mAh are not enough for the job? Do I need a Lipo with more Amps {like 6700mAh} or not?
You need to figure out how many watts your system is pulling. I am using the Nanotech 5000 mA packs and I get a 4 1/2 minute flight with another minute or so to spare in case I have to do a go around. My max amp draw with the same set up you have in terms of motor and fan is 5500 W. my guess is that your batteries are ****ping out because you're pulling on them harder than they want to give and you are lowering the actual capacity because your batteries just cannot keep up.
Dear Fidelity , my Falcon has Airpower retracts with oleo legs and it's weight is about 8.5 kilos Some other guys says that my jet is too heavy.The day that I flew her was at 31 degrees Celcius which is not good for the motor and for the Lipos. My Lipos were new , the first one had 3 flights and the second one none. Perhaps your Nano Lipos must be better from my Zippy one's.I am from Greece and I think that at hot Greek summer I could not fly more than 2.5 minutes if I want my Lipos to survive. D you have any better idea?
31c is not that hot...just make sure that your batteries are getting a little airflow inside the model. My model weights 9 kg and I have no problems with my Nanotech 45C batteries. I think Nanotech are just better quality batteries vs. Zippy.
Do you have the ability to measure internal resistance of each cell? If you do, check and make sure that you don't have a bad cell. It sounds like your battery is old, you have a bad cell, or it's just a bad battery.
How many Amps draw your CS fan with the HET 700-98-935Kv motor? Mine draw 118Amps , so I asked Tony Tang of HET motors and he told me that 118Amps are not on the safe side. These are too high for the motor.
I'm pulling 138A max. I've had three full power tests and the motor stays at or around 140 degrees F. I will try changing the software on my castle creations esc from 4.0 to the non beta version, but I would be happy with 120A max. I am not sure why Tony said that as x1flite sells this fan/motor combo balanced and bench tested at 118A and they've had good reviews with little to no motor failures.
Should be perfect, if you have enough place in the plane. If you want good power use this EDF with 4 blade rotor, if you want more power, try 7 blade, with only 2.5 kg, it will be highly overpowered
I recently got a 5 blade 64mm ducted fan from here and it provides a decent 1000 kg of thrust with a 4300kv brushless outrunner so a 5 blade 90 mm even with a 1000kv motor with a 10s lipo would provide more than 2.5 kg of thrust, go for it
Maybe not SK3 motor but the 910kv heli outrunner should do around 4-5k watts and do around 15lbs without an intake lip and using a thrust tube similar to like what's on x-flights website. Their fan is using a 930kv inrunner
These things make a mad awesome heavy-lift quadcopter. T600-880s on 12S with remachined propshafts so the things are actually centered. Will lift off a 10kg quad without breaking a sweat.... controllably or otherwise *-*
The motor I want to put on this EDF has a bearing sticking out on the front of the motor. Can anyone tell me the diameter of the hole that the motor shaft goes through?
Why do need that hole size .You can bolt the motor,in first put the shaft in and with hole on side for allene key , this way you dont have to pass the shaft through .
I do not see a problem with making a custom fan shaft that has a set-screw holding one end to the motor and threaded on the other end to secure the fan with a nut. But one would have to select a motor shaft with a flat on it for the set-screw idea to work or one must grind a flat onto a motor shaft for this to work. The bore size of the fan must be known and it must be concentric with the fan o.d. I could build the shafts from good alloy steel like 4140 in my machine shop but I must know the selected motor shaft diameter and the i.d. of the fan. I could not make money building the shafts but I could solve the problem for what seems to be a fan with great potential. Is anyone interested in this concept?
I need the fan length and the hole size. Can someone mic the od of the shafts that HK included with this fan? And it would be smart for mass production if we could all settle on one motor shaft size for this to work.
That would be sweet!! Dia on the shaft is 11,885mm, but on the 5mm there is a 4mm long "shoulder" at the flange that is 11,918mm...odd. I.D. of the fan bore is 11,93-11,94mm. I think the Turnigy T600 helimotor (4030) will be a good fit, so I wote for 6mm motor shaft. No numbers on that combo yet, but Knife Liddle on rcgroups has run that motor at 5kW (and above!) without problems.
11.93 and 11.94= .470 thousandths in the fan bore. 6mm motor shaft will be good and strong and your motor does have a flat on it which is good but my concern is the low KV even at 7s it will only be 28,490 rpm with no load. Perhaps more kv would yield even more potential for power if we can find the best motor that has a flat on it. Do you have any other motor suggestions with a nice big shaft diameter?
The one with 880Kv is used with 10-12 cells in a different fan, and I think it would work in this too. there is also Kv1100 and Kv1400 of the same motor, and Kv1100 is the one I have. It should be good with 9 or 10 cells, but with a Amp draw of a bit over 100A. Kv1400 could be good for 6 cells. That one is not listed under Heli motors, use "QUICK SEARCH", T600 1400" to find it. Turnigy 600 H3740 with 2, 3 and 4 turns could be a alternative motor. &mm shaft on that one to.
That is amazing, I didn't know it was possible to get this level of thrust from an EDF unit, it makes the cost of flying a larger jet model much more affordable
Ran a third thrust trial using the T600-880 on 12S A123s (38.4v nominal, 36v minimum): 4.0 kg static (!), 28550 RPM, 75 amps full throttle. I believe this to be a solid data point for what this fan is capable of once it's cleaned up a bit. Now I need more power..
After the propshaft was remachined and the rotor balanced, I got some more promising numbers: 28500 RPM, 30.06V minimum, 86.0A, and 3.8kg static. Test was performed on 10S A123 cells (33v) using the T600-1100 motor. Additional test was run using the T600-880 motor: 24800RPM, 31.16v, 52.9A, 2.9kg static. The T600-880 on 12S A123s would seem to be a good fit for this fan. It certainly does have great potential after being polished up the way you usually have to fix up an inexpensive Chinese product.
I remachined the 5mm prop adapter to fit a 6mm motor shaft so I knew the propshaft was concentric. With that variable taken care of I can say that the rotor is not balanced at all. There are no direct indications on the rotor that it was balanced. I figured the supplier might have done just an exceptional job at molding, but at least my rotor will require significant balancing to operate above 20,000 RPM. A run was clocked at 18,100 RPM on a T600-880 at 10S lipos (37 minimum volts), which is very strange since it revealed that the motor is unusually slow. Perhaps with such a shaky rotor, it was for the better.
So this thing is inexpensive, but needs quite a bit of work (like a machine shop) to get functional. However, it definitely has potential.
No, the nacelle is an external pod that houses the fan. Google Tamjets nacelle or XPS nacelle if you would like examples.
As for motor, I'll be fitting either the KB45-08XL 1600kv Brushless Inrunner (3500w) or the KB45-11XL 1000kv Brushless Inrunner (2500w) thanks.
your talking nacelle like a A10 warthog correct ,if thats the case the diameter is 120mm(FAN) so it would use a nicelle that can inhabit a nicelle 120MM FAN SIMPLE AS THAT. Or a passinger jet ,same thing
That is amazing, I didn't know it was possible to get this level of thrust from an EDF unit, it makes the cost of flying a larger jet model much more affordable.
Is it possible to work out the biggest motor this fan can take using the 45,000 rpm as the max..
G'day all what kv motor at which voltage would give closest to 45,000 rpm without going over. a suiable margin of error to allow for quality variation would prob be good as well if possible could you also explain how to work it out thanks <**sword-of-kaos****{===}*
Hi i have the same edf on 12s 6000mah 25-50c 910kv lehner motor 5500wat and the fan spin close to 42000-45000 rpm 12s x 4.2v=50.4v/50.4v x 910kv = 45864rpm .
Hey anybody,.... I have a brand new turnigy 6s 5000 40c pack that I got a great deal on.... Is there a motor anyone can recommend for my pack and this fan? Or would I need more cells to add onto my pack?! Thanks
Do you have one or two? Based on what terry wrote (max power = 2,2KW) you'd need a 2000kv outrunner with 2,2kw and a 200A esc, or a 1000kv outrunner and a 100A esc for two packs. In case you do 6s take BIG wires and double-check everything, wouldn't recommend it. (lower kv compared to terry due to safety marign/unknown voltage sag of battery)
gsnflyt - I agree, Fly Fly has been the ONLY company to make some big foamies so far. A 72" long EPO F16 kit would do this fan justice. Or some EPS that's easy to glass (few panel lines) would be great...HK can step up to the mike and fill the big foamie void
KB45-10L 1800kv Brushless Inrunner... i have this motor for the 127mm edf.. this thing on 100esc and 6s batt, is a beast!!! motor is little heavy but makes up with the power that it has... give it a try.
The Scorpian 4025-1100 is a Good choice 1100kv Rated to 2200watts at 100amps for 15 sec. Only Good Quality Out-runners will supply consistent smooth power. In-runners (except Exspensive Neu Motors)are not very good as they cant supply consistent power before overheating
ive got the t600 turnigy and it runs the 5" fan great(after I cut down the blades a little and ballanced it), i would think it would run this even better... i would use the 800kv one though
The HK 880kv motor should go great with this fan for around 4 to 4500 watts. In this rcgroups thread (showthread.php?t=1359237&page=4) the person used a 935kv motor, there are no eflux thrust figures yet.
I have this fan on 12s with typhoon motor 935kv stated above and put out 13lbs installed thrust. HERE is a video of my jet. AS you will see it crashed shortly after take off because of a elevator glitch, but it makes alot of power. I bought another fan but this one is not balanced at all, I think the center shaft is not made right at the factory :(, enjoy the clips, the jet is ready to fly, just have to get this new fan balanced some how. http://www.youtube.com/watch?v=FkQOCyOiuac
Ordered one (along with 12 blade 120mm fan) in order to do precise lab tests and contribute HK community with valuable data. EDF came without any metal parts! Support team after some negotiations provided financial compensation but I still have two pieces of useless plastics. Obviously, I'll have to order some custom made stuff from local machine shop which won't come cheap. Until then, take care all!
Miljenko - try x-flight to get some of the items you need for the fans...they might have them
Regards
Results of my test are the 120\12blade is pretty efficient of the cost after you PU the blades together.
The 4 blade isn't as efficient IMHO and was harder to balance.
Customer Reviews
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heartofcarbide
38 likes
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UNRATED
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The housing: Rock solid and resistant to deformation.Thick and smooth walls with a small (5mm or so) radius inlet.
The rotor: High quality fiber filled plastic that sounds like ceramic when you tap it.
The included shaft adapters: Total garbage.
I had a motor with a 6mm shaft, and the 6mm adaptor was practically useless because it was so off center. The alloy is also extremely soft. Due to this, I was unable to exceed 4 to 5 pound thrust before the shaft vibration concerned me too much. Because the rotor is useless without a good quality adapter, I can't rate this 5 stars. Luckily, I have facilities to machine my own adapters so it may still be salvageable.
Additionally, as a data point: The Turnigy T600 helicopter motor has a mounting hole circle *just barely* too small for the included motor mount. You have to drill the mounting slots out at their smallest point a little, using a 4 to 4.5mm drill bit. Otherwise, the T600-880 seems to be good power matches for this fan. The first test was run on 12S LiFePO4, equivalent roughly to 10S lipo.
9 comments. Reply..
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straton
216 likes
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Purchased 2 of them. Nop!! they are not balanced and on one of them the 6mm shaft is completely out of center. It almost destroyed the edf. so have to return shaft for replacement. Quality is pretty good, price pretty good. four stars for not being balanced and shaft problem.
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Valdir
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I BOUGHT TWO FANS AND ALL LINES ARE TOTALLY OUT OF CENTRE The HOBBYKING THINK SHOULD SEND ME THE NEW LINES I NEVER BUY MORE FAN MADE IN CHINA
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t1b9n6g3
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I have bought this EDF unit and I have the same problem with the three adaptors.All are running out of centre so the unit is useless if HK does not support us with new adaptors.The real problem is that HK support it's not flexible.They ask me to return the unit back for test or to sent a photo of the faulty adaptors. They did not understand that the photos does not saw anything because the problem is inside the holes of the adaptors. I am from Greece and not from China. If I post the EDF unit back to HK I must pay extra money and I do not know if the new unit that they would have to sent to me could not have any problem. If I knew all these probably I could bought this fan from another source.I am a customer that I have spent a lot of Euros the last three years to HK store and I did not imagine that I would have such a confrontation from them.
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Fidelity
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The fan housing arrived cracked. 15 days later, Hobby King advised me that they will open an investigation. Personally, I love that their customer support has been off-line for about a month now. The fan housing was cracked and a piece was missing. The funny part was the broken piece was actually not inside the box meaning it was broken before even being placed in the package and shipped to me. I'm still curious to see how long it takes Hobby King to finish their "investigation" but in the meantime, I went ahead and purchased another fan from another source.
The four bladed prop took about 15 drops of CA in order to balance properly. Using the HET motor, I'm getting about 5500 W of power on 12 cells using the 12 s
Nanotech 45c 5000 mA packs. I'm using the 8 mm prop adapter and I was lucky because the prop adapter is actually well balanced and drilled properly unlike most of the reviews so far. I would probably buy another change sun fan in the future, but it will not be from Hobby King. It is well worth it to pay the extra 15 or $20 and buy it from X flight.
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