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EDF Ducted Fan Wemotec Midi Fan evo / HET 650-58-2100

MDE 650-58-2100

New product

Wemotec

Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 650-58-2100 motor. The unit is assembled and checked at factory, precision balanced and harmonically tuned.

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Pack content

Data sheet

EDF thrust (categorization) 1-2kg, 2-3kg
Direction of Rotation (EDF Rotor) Classic Counter Clock Wize (CCW)
EDF Diameter Class (mm): 90
Blades: 11
Turbine shroud Synthetic
EDF Rotor Synthetic
Turns/min/Volt (Kv): 2100
Motor Type: In-Runner
Motor Diameter (mm): 36
Shaft diameter (mm): 5
Battery Cells: 4s - 14.8v, 5s - 18.5v

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EDF Ducted Fan Wemotec Midi Fan evo / HET 650-58-2100

Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 650-58-2100 motor. The unit is assembled and checked at factory, precision balanced and harmonically tuned.

Readings

 
4s
5s
 Voltage
 14,8 V
 18,5 V
 Current
50,0 A
 82,0 A
 Power
740 W
15´17 W
 rpm  tbc  tbc
 Thrust
1,72 kp
2,80 kp
 Efflux velocity    
52,80 m/s
67,39 m/s
 Efficiency
0,60
0,61
 Controller
> 60 A / LV
> 90 A / LV
 Battery
  2.500-3.200 mAh  
  4.000 - 5.000 mAh  

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 650-58-2100
 
 inner diameter:  89,0 mm
 outer diameter:  92,0 mm
 length of shroud:  60 mm, w/o intake lip
 weight, complete:  395 grams (opt. intake rin + 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

Readings:  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.
 

Motor specifications

  • Diameter : 36 mm 
  • Length : 57.5 mm
  • Shaft Dia. : 5 mm 
  • Weight : 240 grams 
  • Internal resistance: 11
  • No load current (lo): 2.7
  • Max efficiency: 88% 
  • Poles : 4 
  • No load KV : 2100
  • Suggested lipo cells. : 4-5S 
  • Max amps: 90A (5S)
  • Power Nominal: 2200 watts
  • Recommended advance timing : low

Midi Fan evo unit Specifications

Ducted Fan unit of the poular 89 mm Midi Fan class, both optimized for Sound and efficiency. This fan brings efficiency of multibladed fans to a new level. The one piece glass reinforced Nylon rotor comes calibrated and dynamically balanced. All components are compatible to the former Midi Fan pro. 

  • Material: Nylon, ABS, Aluminium
  • Weight: about 102 grams, incl. intake lip
  • Power range: 1.000-4.000 W
  • Max. rpm: 50.000 U/min
  • Rotor: 11-blades (87,5 mm) glass reinforced Nylon
  • Set: all parts, incl. instruction
  • Ageom.: 49,4 qcm 
  • Aeff.: 45,6 qcm 
  • Thrust: 7-50 N
     
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    EDF Ducted Fan Wemotec Midi Fan evo / HET 650-58-2100

    EDF Ducted Fan Wemotec Midi Fan evo / HET 650-58-2100

    Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 650-58-2100 motor. The unit is assembled and checked at factory, precision balanced and harmonically tuned.

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