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High-Torque EDF Ducted Fan Unit 5Blade 90mm w/1600W Outrunner Motor

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High-Torque EDF Ducted Fan Unit 5Blade 90mm w/1600W Outrunner Motor

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Just take a look at this fans blade confirguration, what a torque monster!
This is a powerful fan/motor combo that has been factory dynamically balanced leaving you to simply solder your ESC/motor connectors, fit and fly. The Pre-Installed 1900kv Outrunner Motor is rated for 6s meaning an impressive 2600g of thrust, an ideal upgrade for 90mm PNF models!

Fan Spec:
Outside Diameter: 92.5mm
Rotor Diameter: 90mm blade
Material:Fibreglass reinforced Nylon rotor 
Max RPM: 45000 RPM
Thrust (6s): 2600g
Weight (Complete unit): 311g
Comes with optional inlet ring

Motor Spec:
motor: 35/48 1900KV brushless Outrunner
KV: 1900 rpm/v
Shaft: 5mm
Idle Current: 3.5A/11A
Resistance: 0.012ohms
Max Voltage: 22.2v (6s)
Max Amps: 70A


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Sven Lundgren | Verified Buyer

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Customer Rated

Jul 07, 2012

I bought this fan as a replacement for the stock one in a 90mm L-39 Albatros, also available from this site. And it fit with very few modifications.

Overall I'm very happy with the fan, though I did take it apart and rebalanced it, just to make sure all screws were loctited, which they were not.

Performance wise it is a good fit for the L-39, and I guess for the other 90mm FlyFly/Hobby topgun models of the same class (scale jet trainers).

Using a Turnigy 100A SuperBrain ESC and a Kypom 6S 5100 mAh 35C, I get around 65A, 1400W at full throttle.

Sorry, I got no thrust numbers, but I have this video to give an idea of the performance:

Warning: Turnigy K-Force ESCs will not work with this motor. They can not cope with the rpm of this setup, as the max rpm for K-Force ESC is 35.000 with 12-pole outrunner.

Bob | Verified Buyer

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Customer Rated

Apr 04, 2012

I actually got this from a different distributor I've been aquanited with for a while but it's the exact same product So I guess it's up to you whether you wanna believe if the distributor makes a difference :S

So I used this in my 90mm l-39 on 6s turnigy 4500mah 30C packs. EXCELLENT amp draw (75 amps) for a lightweight combo unit w/great thrust. However on the 3rdish flight the thing started to smell funky. Thought the motor died when it was actually the rotor slipping on the adaptor and creating buttloads of friction and making the smell. So I simply epoxied it to the adaptor figuring that if another problem arose I wouldn't be using the unit again. Sure enough on the 25th flight the motor started to slow down big time and seem jammed. When I rotated the can by hand i could hear what sounded like a copper winding wire scratching against the magnets 0_0 I looked at the windings closely and noticed that they're not insulated unlike mega motors.

I do fly on a dusty dirt and tiny rock field so maybe that coulda been a part of it.

Thomas Nelson | Verified Buyer

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Customer Rated

Dec 15, 2011

Published specs seem accurate to me.


I'm using two year old $8.99 HobbyKing 3S 2100mah 20-30C cells (code Z22003S20C) that I should probably retire sometime soon. Still, when configured in 6S and then paralleled (4 cells total) I get 36000 rpm, 21v, 60 amps, 1260W. This is on a Superbrain 80A ESC, with the data pulled from the built-in logger. I can imagine that with better/newer cells I'd see 40k rpm, maybe even 46k like published, but that would be a pretty big stretch.


The motor has small holes drilled into the back of the end-bell, indicating that there was a genuine attempt to balance it. However, I found that mine needed further attention. Not much ... about 4 coats of flat black paint on the light blade - front and back side - and I had an acceptable unit with no vibes resonating through my foam F-18.


It is a fairly noisy combo though, with the motor I believe making a substantial high pitched, annoying whine at all rpms.


Also of interest, mine makes a faint whine even when completely at rest. Strange! Not enough current to register on a wattmeter, but something is happening nonetheless.


If it came better balanced I'd have given it 5 stars across the board.

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