rundar402

i have a falcon 120 and bought a hoaye 127mm 5' fan unit what motor should I use and I don't want to break the bank either OR should I just make it an electic prop? any idea's? here is the specs for the fan.. the 6mm shaft size gets me unless I cut the shaft size down on a motor.. thoughts?

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

Mr Ammo

its been a while but if I remember correctly I bought a 60mm diameter by 65??mm lenght in runner, 10 cell with a 120 amp esc? The plane was slow to rotate but when up was fine, it is still flying

rundar402

so you was flying a 12 pound plane with 60mm EDF or did I misunderstand?

Extreme_RC

You will need to clean up the rotor and balance it really well, then you will have to dynamically balance the fan which means balancing while running, home user will usually rotate the rotor and test until the sweet spot is found then fit the spinner and do the same, the spinner will often need balancing as well.

The new HET inrunner motors would be suitable, the 800 series, I am not sure on the load of the Haoye rotor as I have/would never use one myself, but I am guessing it will need a motor around 800Kv, HET has some in their new range, 800-60-830Kv I think is one thatmight be suitable, or the 800-68-685Kv. You might be better going to rcgroups.com and searching for the Haoye fan threads as lots more guys have persisted with this fan over there and will be able to help you.

Extreme_RC

You will need to clean up the rotor and balance it really well, then you will have to dynamically balance the fan which means balancing while running, home user will usually rotate the rotor and test until the sweet spot is found then fit the spinner and do the same, the spinner will often need balancing as well.

The new HET inrunner motors would be suitable, the 800 series, I am not sure on the load of the Haoye rotor as I have/would never use one myself, but I am guessing it will need a motor around 800Kv, HET has some in their new range, 800-60-830Kv I think is one thatmight be suitable, or the 800-68-685Kv. You might be better going to rcgroups.com and searching for the Haoye fan threads as lots more guys have persisted with this fan over there and will be able to help you.

Henke Torphammar

I'm very impressed with the Scorpion 4035 motor, it pushes almost 6kW and lands cool to the touch. Almost too good to be true. My fan did not need any ballancing.

[youtube]http://www.youtube.com/watch?v=Jy8NNlGUApY&list=UUXbd6D3PhZhqageOYtpOzOg&index=27[/youtube]