EDF Ducted Fan Wemotec Mini Fan evo / HET 2W-20 (Pack)

MFE-2W20-PACK

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Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 2W20 motor. This Pack is precisely assembled, balanced and tested by us.

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Data sheet

Weight (gr): 155
EDF thrust (categorization) 1-2kg
EDF Diameter Class (mm): 70
Blades: 9
Turbine shroud Synthetic
EDF Rotor Synthetic
Turns/min/Volt (Kv): 3400
Motor Type: In-Runner
Motor Diameter (mm): 28
Shaft diameter (mm): 4
Battery Cells: 3s - 11.1v, 4s - 14.8v

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EDF Ducted Fan Wemotec Mini Fan evo / HET 2W-20 (Pack)

Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 2W20 motor. 

This Pack, composed with the EDF unit, the motor and the assembling and balancing service, is precisely set, harmonically balanced and tested by us.

Readings:

 
3s
4s
 Voltage
 11.1 V
 14.8 V
 Current
nc
 57.0 A
 Power
nc
nc
 rpm nc  tbc
 Thrust
nc
1,35 kp
 Efflux velocity    
nc
nc
 Efficiency
nc
nc
 Controller
> 50A / LV
> 80A / LV
 Rec. Battery 
    2200-3400 mAh   
   2600-3800 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 Mini Fan pro ducted fan unit
  • 1 x HET 2w20
 
 
 inner diameter:  69,0 mm
 outer diameter:  72,0 mm
 length of shroud:  60 mm, w/o intake lip
 weight, complete:  155 grams (opt. intake rin + 15g)
 fan swept area:  29,40 sqcm
 rotor:  9 blades, nylon (glass reinforced)  
   
 rec. thrust tube dia.:   56 mm diameter
 Timing ESC:  approx. 12° (6-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:

Typhoon HET EDF 2W-20 Motor 28mm 3400Kv, for pylon / EDF jets up to 1300 grams. Suitable for HET EDF unit 6904, WemoTec Mini Fan, Changesun 70mm or equivalent. 3 or 4s Lipo.

  • Diameter : 28 mm
  • Length : 43 mm
  • Shaft Dia. : 4.0 mm
  • Weight : 93 grams
  • No load current(lo) : 2.6
  • Internal resistance: 0.014
  • KV : 3400
  • No. of poles: 6
  • Max Current: 60 A
  • Max efficiency: 89%
  • Power Nominal: 700 Watts
  • Recommended Props: APC E 4.7 X 4.7 (3 cells lipo)
  • Advance timing : 18° Middle PWM: 16 Khz

Mini Fan evo unit Specifications:

  • Material: Nylon, ABS, Aluminium
  • Weight: approx. 57 g (with intake ring + 15g)
  • Power: 500-3.000 W
  • max rpm: 60.000
  • Rotor: 9 blades(68 mm) glass reinforced
  • Kit comprises: all components, english instruction
  • Ageom.: 29,4 qcm
  • Aeff.: 26,2 qcm
  • Thrust: 6-30 N

Thrust tube should be 56 mm in diameter for best performance.
You can find several versions of such tubes in our shop.

 

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EDF Ducted Fan Wemotec Mini Fan evo / HET 2W-20 (Pack)

EDF Ducted Fan Wemotec Mini Fan evo / HET 2W-20 (Pack)

Modern high efficiency multi bladed fan unit. The fan unit comes completely mounted with a HET 2W20 motor. This Pack is precisely assembled, balanced and tested by us.

Write a review

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