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> Hardware & Accessories > EDF Systems & Parts > EDF Units - No Motor


10 Blade High-Performance 70mm EDF Ducted Fan Unit

10 Blade High-Performance 70mm EDF Ducted Fan Unit
10 Blade High-Performance 70mm EDF Ducted Fan Unit

A high thrust and well designed Electric Ducted Fan unit for high power applications, the 10 blade arrangement makes for a quiet fan unit with an amazing sound, this is the closest you will ever get to the sound of a Turbine!

Made with 30% FRP and dynamically balanced, for use with high performance 28mm EDF motors, either 3.17m or 4mm shaft. For the best results from this fan, we reccomend the Turnigy 2855 EDF motors.

Outside Diameter: 72mm
Rotor Diameter: 68mm  blade
Meterial: carbon fiber reinforced Nylon rotor 
Shaft adaptor to motor: 3.17mm or 4mm
Max RPM: 45000 RPM

PRODUCT ID: 444000001-0

Weight: 134g
International Warehouse
Price  $15.69

  • Turnigy L2855-2300 EDF Outrunner (450w)

    Combo Price: $12.91   IN STOCK

  • Turnigy L2855-2800 EDF Outrunner (630w)

    Combo Price: $12.91   IN STOCK

Further discounts available for registered & logged-in customers.
 Customer rated
Total of 88 discussions.
Burachat  1 points - 5/17/2015
one question about reversing the blades. I just order 2 of these, I would like to know it will work with my SU35 twin 70mm ducted fan ?
jeff  1 points - 3/3/2015
This fan and unit will produce 1kg of static thrust when mated to a turnigy 2800 on a 30c 4cell pulling approx 60amps I also have one of these
ken  1 points - 2/15/2015
how do you balance the motor bell?
 greasmnky 717 points
you can put a dot of epoxy on the inside of the bell if you can remove it.  402 points - 1/30/2015
having a terrible time balancing the fan. i think i have it balance but spinning it again and again shows it's not balanced.
 jeff 1 points
If his g a magnetic balancer spin till the fan slowed if it pendulums add a tiny brush stroke of lacquer to the top blade at the tip give it a min then spin again repeat until fan stops at random points this fan produces about 10% extra thrust if balanced correctly
heliflyer69  15 points - 12/6/2014
These fans are V2. They have 4 stators as shown in the product pics. V3 has more stators and at this time not available from Hobbyking. The Turnigy 2855 fits in this unit nicely. Mine had a bad case of the shakes until I balanced the 2855 bell. The fan needed no balancing to be near perfect.
Customer Reviews
Overall Rating
1 thumbs up!
VERY VERY Nice sounding fan, here are the thrust numbers using HKs L2855-2100kv motor..........6S 4500 25C \ Vm: 21.63 \ Ap: 68.36 \ Wp: 1538.74 \ Thrust (Kg) 2.2 AND 4S 3300 25C \ Vm: 14.18 Ap: 35.32 \ Wp: 534.5 \ Thrust (kg): 1.3 AND 5S 4400 65C \ Vm: 18.82 Ap: 54.70 \ Wp: 1067.10 \ Thrust (kg): 1.8. That is great thrust and great sounding here's a video ( watch?v=coa9aMKyp0s ), no that is not a turbine that is this fan spooled up slow before take off.

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Great sounding fan, what the 70mm EDF jets have been missing. I'm using this with a Turnigy L2855-2800kv EDF on 4S 35C 2650 Nanotech in a foamie F-16 (also here on HK). I'm getting around 750watts at 55amps. Some things to watch for are 1/ Housing is flimsy so becareful how much power you intend to run 2/ sounds much better when properly balanced although its not too bad as it is 3/ make sure you tighten the fan properly to the adapter or it might slip 4/ don't use the spinner or it will throw out the balance. Definitely worth the money for the sound although it won't break any land speed records....

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The most radical change in 70mm EDFs for a while. Amazingly quiet and respectable thrust. No other EDF of similar price is so refined and effective.

Run it with an L2855-2300kv on 4S and get 1.3 Kg of thrust or go to 5S and get 2.0Kg of thrust. I uploaded a video of this unit in a Durafly Vampire. It will not sound the same in every plane since the airframe ducts and exhaust play the major role in the sound being generated.

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Well. after testing this fan i was amaised to find out that its not so good as afew ppl wrote in these revews. at 22 volts 30c 5000mah battery the fan gave onley 1200 grams of thrust that was without the intake rim but with open air intake and took 1000 watts. with the same motor that the reveweres used L2855 2100kv. i think that what afew ppl wrote here in the revew is wrong. it just can not be and its also not logycal. the regular 70mm 6$ 6 blde fan gave me 870 grams at 650 watts. and its not so diferent than that fan just afew more blades. by the way the saund is more plesant with the 10 blade

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The Changesun is the revolution of the edf! Finally the only solved the problem of electrical configuration that remains the least expensive and most efficient ... ie, the noise! with this you get the feeling of having an aircraft jet airliner. Greetings and kisses you crazy spending by € 3,000 to € 5,000 per turbine kerosene! If it progresses technology obtaining lipo lighter and more resistant to high amperage will be a pleasure. Anyway, I'm going to 6s with Turnigy kv2100 54a with 1.4 and I get thrust. Using a 65c 2250mAh lipo with Atencion. Thanks HK!

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