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

MDE 650-58-2100

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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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Data sheet

EDF thrust (categorization) 1-2kg, 2-3kg
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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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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