Midi Fan evo ducted fan unit / HET 650-68-1340, completely assembled, precision balanced and harmonically tuned

Item number: MDE 650-68-1340

89 mm ducted fan unit (11-blades)
8-10s Lipo cells
3,1-4,3 kp of thrust
completely mounted, checked, completely balanced and harmonically tuned

Category: with HET 650-68 motors

209,90 €

including 19% VAT. , plus shipping

Recommended retail price: 209,90 €
Available now!

Shipping time: 2 - 3 workdays

Modern high efficiency multi bladed fan unit.

The fan unit comes completely mounted with a HET 650-68-1340 motor.
The unit is assembled and checked at factory, precision balanced and harmonically tuned.




29,6 V
33,3 V
37,0 V
59,5 A
74,5 A
will follow
1761 W
2481 W
will follow
3,12 kp
3,76 kp
will follow
 efflux velocity
71,12 m/s
78,08 m/s
will follow
will follow
> 70 A / HV
> 90 A / HV
> 100 A / HV
3.000-4.000 mAh
3.700-5.000 mAh
will follow

The controller should be chosen 20% over rated due to the long lasting load
LV = low voltage controller up to 6s, HV = high voltage controller above 6s
Battery should be chosen about 15/ - 1/20 of the max current for 4-3 minutes WOT. 30-40 C is appropriate.

Set comprises:
1 x Midi Fan pro ducted fan unit
1 x HET 650-68-1340
 inner diameter:  89,0 mm
 outer diameter:  92,0 mm
 length of shroud:  60 mm, w/o intake lip
 weight, complete:  402 grams (opt. intake ring + 19g)
 fan swept area:  49,40 sqcm
 rotor:  11 blades, Nylon (glass reinforced)
 rec. thrust tube dia.:  75 mm diameter
 Timing ESC:  approx. 6 (4-pole motor)
 PWM:  8-12 kHz

We measure with a constant voltage of 3.7 V / cell. 
Current and thrust are measured with a small intake lip (r=6 mm) at 21 C, 50m asl and standard pressure.
Depending on battery, controller and installation you may see higher or lower figures.

Shipping weight: 0,40 Kg
Product weight: 0,30 Kg

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