Mercury Alloy 64mm 4700KV EDF Unit (2s ~ 4s)

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Customer Rated

Nov 18, 2013

This is just a great fan unit. Completely vibration free, gives a lot of thrust for a 64mm unit and the sound is quite nice too. It is also surprisingly light...

I am flying an RC Lander Hawker Hunter (retracts, flaps, 4S) with it and it is just the right choice for that plane. The only minor negative point was the lack of those mounting brackets.

PS. I will buy a 90mm 6S unit also.

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Customer Rated

Oct 27, 2013

This EDF unit is very good quality and very well machined, very well balanced and runs up very smoothly. The unit is extreemly light weight yet very strong, you would expect to pay a much higher price for this sort of quality. There are pre-drilled and threaded holes on the sides of the unit to attach fixings if required. The 3 bearing support configuration is very good as it supports both sides of the fan ensuring a very stable fan in the housing eliminating the risk of the blades catching the housing as some other units iv tried do at hi speed.
Highly recomend this unit for any project or upgrade.

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Customer Rated

Oct 18, 2013

Oh yes. The quality and reliability of this fan is one of the best. I agree with some other customers when it comes to thrust. In my opinion it is impossible to achieve figures released by the manufacturer.

Nevertheless; no chit-chat any more. (The only EDF which really gave the right numbers is The JETFAN 90 from the ejets at Austria. The sound is great too.)

I have about 25 years experience of ducted fans (all the way from Dynamax and K&B 82's) I think this 4700KV Mercury is worth of paying.

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Customer Rated

Aug 16, 2013

one of the greatest EDF Units out there for the money.

you better have a good battery and ESC for the 70amp draw on a 4 cell.

we are getting 130mph on a thundercat delta wing.

will be installing one of theses in a stinger next.

use this mounting fixture.

http://www.epf.com.tw/enshop/goods.php?id=131

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Certified Buyer Rated

Jul 29, 2013

These units are absolutely awesome. Beautifully made. Balanced to perfection with no vibration throughout the whole throttle range. Have not run on test rig yet. Will post results when done this week.

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Customer Rated

Dec 12, 2012

This is my 3rd edf unit from the same manufacturer . My 1st and 2nd are the red version ,alloy red color, 4700kv,5 blade,with cone,also bought from hk. I believe they have replace the old unit to this new product, come with new spec of 8 blade ,with the same motor but without cone. The performance as i expected from the this manufacturer. The performance...Marvellous, very impressive! As what others people said,it worth for every penny u spent and like no others. To me its the best edf in its size. For a very serious edf flyer, its a must. My last setup on my jetiger,it can beat pusher setup on the same cell setup, 3s 45c, 4700kv edf vs 4800kv pusher. Dont be tricks by its motor size,its very small in size,with very small wire, but believe it or not it can sustain 70amp and high watt very well, not logical but its the fact., they have done their study and research. The speed,the sound, very well balance fan and motor unit,the thrust, alloy duct and fan! im sure edf flyer will appreciate it very much. Beware when using this unit,as its a very high performance unit, it will require a good esc and proper setting or it will burn your motor.. some cheap esc at certain point could not supply constant power , experienced once for the 1st unit..... at higher rpm the motor start to jerking and suddenly the motor stop and burn..... pls make sure to use the right batter

• Overall
• Quality
• Value

Customer Rated

Dec 12, 2012

This is my 3rd edf unit from the same manufacturer . My 1st and 2nd are the red version ,alloy red color, 4700kv,5 blade,with cone,also bought from hk. I believe they have replace the old unit to this new product, come with new spec of 8 blade ,with the same motor but without cone. The performance as i expected from the this manufacturer. The performance...Marvellous, very impressive! As what others people said,it worth for every penny u spent and like no others. To me its the best edf in its size. For a very serious edf flyer, its a must. My last setup on my jetiger,it can beat pusher setup on the same cell setup, 3s 45c, 4700kv edf vs 4800kv pusher. Dont be tricks by its motor size,its very small in size,with very small wire, but believe it or not it can sustain 70amp and high watt very well, not logical but its the fact., they have done their study and research. The speed,the sound, very well balance fan and motor unit,the thrust, alloy duct and fan! im sure edf flyer will appreciate it very much. Beware when using this unit,as its a very high performance unit, it will require a good esc and proper setting or it will burn your motor.. some cheap esc at certain point could not supply constant power , experienced once for the 1st unit..... at higher rpm the motor start to jerking and suddenly the motor stop and burn..... pls make sure to use the right batter

• Overall
• Quality
• Value

Customer Rated

Dec 12, 2012

This is my 3rd edf unit from the same manufacturer . 1st and 2nd are the red version ,alloy red color, 5 blade,with cone,also bought from hk, i believe currently they have replace to this new product with 8 blade and without cone. The performance as i expected from the this manufacturer. Marvellous! As others people said,it worth for every penny u spent. Its the best edf in its size. for a very serious edf flyer, its a must. My last setup on my jetiger,it can beat pusher setup on the same cell setup. Dont he tricks by its motor size,its very small,with very small wire, but can sustain 80amp and high watt very well, not logical but its the fact., they have done their study. The speed,the sound, very well balanc unit,the thrust, im sure edf flyer will appreciate it very much. Beware when using this unit,as its a very high performance unit, it will require a good esc and proper setting or it will burn your motor.. some cheap esc at certain point could not supply constant power , experienced once for the 1st unit..... its jerking and burn..... pls make sure to use the right battery setup, to avoid battery puff for a speed freak flyers. recommended to all edf flyers.

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Customer Rated

Nov 16, 2012

Just got this the other day for my Stinger 64. Have not installed it yet but did some runs with it and have to say its very smooth. I used a Plush60 ESC and a Nanotech 2650 4s 35c-70c(30-40 charges) pack for testing and it peaked out at 850w 66A and settled in at just under 800w and right around 60A. I did not measure the thrust but it definitely was pulling hard and the unit stayed very cool. The heat from the motor was being pulled out the rear cone very effectively and you can feel it in the exhaust. Looking forward to getting it in the air, should be a good jump in performance.

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Customer Rated

Nov 01, 2012

wow, something from hobbyking that finally works right. when i opened it up, felt the weight, and saw the size of the motor, my hopes instantly went way down. i thought, there's no way this will generate 1.6kg of thrust.... well i was bored, and there was leaf blowing that needed to be done. O.O damn i realized this has major thrust. I plopped in a stinger 64 with an 80A esc and a 4s 2250 nano tech 65-130c. The battery sucked, and i got to~100 mph. the battery was puffed and hot. Switched to a sky lipo 40c 2200 4s, and damn :D. 125 in a dive and easily 100 flat w/o airframe modifications. this unit is extremely quiet (way more so than 50mm edf's!) and lightweight, with an impossibly tiny motor and huge power output. just don't buy the nano techs!!!! i love it :3