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


EDF Ducted Fan Unit 7Blade 5inch 127mm

EDF Ducted Fan Unit 7Blade 5inch 127mm

EDF Ducted Fan Unit 5  7 Blade
Blade Diameter: 127mm / 5inch
Outer Case Diameter: 135mm
Wall Thickness: 3mm
EDF Length: 98mm
Motor Mount Holes: (Adjustable, from 22~37mm)
Blade Type: 7
Shaft Size: 6mm
This fan will take up to a 49mm diameter motor.

Made from high strength reinforced plastic.
Spare propellers available.
Designed for a range of electric motors around the 540 size.

Recomended Motor: 45-70  Turn (22.2v)
ESC: 120A
Rpm: 1,000kv
Power: 1500~5000g Thrust

PRODUCT ID: OR003-00113-7B

Shipped from:
International Warehouse



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 Customer rated
Total of 38 discussions.
Abuhth  1 points - 9/3/2016
John  1 points - 9/1/2016
What is the maximum rotational speed on this unit?
Shavin  2 points - 12/7/2015
hi, I would like to know if this fan can take in a 5mm shaft motor? Thank You!
 torpedox 9 points
Shaft size 6mm
Pieter  3 points - 10/24/2015
Would 2 of these be able to pull a surfboard with 15kg on it?
 torpedox 9 points
Please tell me you tried this!
garrett  1 points - 8/5/2015
I know this is wired but do you think this will pull a boat on the water it's about 3 to 4 pounds and it's a hydro plane will it pull it
 torpedox 9 points
this is an old question, I know. but, it probably would, but you would never get the performance out of a "Hydro Plane" that you would get with a properly sized propeller. A full sized hydroplane uses either a "piston" engine, or a "turbine" engine. BOTH TYPES of engines are using " gearboxes" (transmissions) to turn propellers (either single, twin, or even contra-rotating props on a common shaft centerline. So even though a hydroplane like Miss Budweiser, has a "JET engine" virtually zero percent of the power output is used as "thrust". BUT,,,,everything I just explained, can be disregarded, when looking at other examples of boats, such as Donald Campbell's "Blue Bird K7" speed record hydro. It used the "jet" propulsion exclusively. but a little research will show the rest of that story. Good luck with ALL your projects.
Customer Reviews
Overall Rating
29 thumbs up!
just received edf. It was my first, read the reviews and thought ok, it may needs balancing but let's try it at low voltage... 10V was the setup with a 100A sentilon ESC-1200kv motor, on a bench. It was badly unbalanced! I tried it a few times but all of the sudden 2 of the blades flew away!!!??? and the thing started vibrating like crazy. Going to return product for a replacement. Shaft seems to be a problem too. Without the fan, this thing vibrates badly!!!

6 comments. Reply..

Overall Rating
27 thumbs up!
Hallo. Leucht leider bei mir unrund. Benutze eine KB45-12L 1400kv Brushless Inrunner. Der Fan k├Ânnte besser entgrattet sein. Vielleicht eine schlechten erwischt. Aber sonst ist Hobbyking super. Gruss aus Deutschland

1 comment. Reply..

Overall Rating
rc technics
20 thumbs up!
I'm tested this Fan unit using a KB45-17XL 700kv Brushless Inrunner, TURNIGY Sentilon100A HV ESC on 10 cells and I'm getting 2,300 watts at 70Amps. Need a bit of balancing using epoxy resin.


5 comments. Reply..

Overall Rating
Soren Hyldeqvist
14 thumbs up!
great fan for the money, a bit out of balance thats the reason for just 4 stars

1 comment. Reply..

Overall Rating
david lester
1 thumbs up!
Exellent edf! light and produces enough thrust plus plenty to spare!!
although the correct motor/speed controler combination is vital to get the most out of it!

2 comments. Reply.. here to see all reviews
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