Tests da RCG:
"I tested the SF fan compared to the Wattage fan and the SF fan is not as good.
Motor: Wicked EDF 4800 KV
SF Fan 3S lipo, 3 blade rotor, 41k rpm, 36 amps, 380 watts 24-25 oz thrust
Wattage Fan , 3Slipo, 3 blade rotor, 41k, 35 amps, 365 watts, 26-27oz thrust
GWS EDF 64, 6 blade rotor, 41k rpm, 35 amps, 370 watts, 26-27 oz thrust
For the heck of it I comparded my LSJS in the SF fan (with 3 blade rotor) since Bob measured 31-32 amps, and Corsair Nut got 22-23 amps. I was right in the middle at 27 amps, 290 watts, and 37k rpm, thrust 20 ounces.
Those GWS EDF 64s are pretty good although I do not think they can handle much more power due to the thin rotor...
Don"