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CR23M Contra Rotating BL System1550kv

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CR23M Contra Rotating BL System1550kv

 
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$49.28
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1 year warranty
SKU:
CR23MC8-1550
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CR23M Contra Rotating BL System1550kv

Specification:
Dimension: 23mm x 54mm
Weight: 73g (including prop spinner & mount)
Diameter of shaft: 3.0mm
Length of front shaft: F13mm
Max current: 12.6V/269w
 
Test data;
Prop: GWS 8x4
Voltage: 7.4, 8.0, 8.4, 10.0, 11.1, 12.6V
Current: 10.5, 11.6, 12.3, 15.6, 18.0, 21.4A
Watts: 77.7, 92.8, 103.32, 156.0, 199.8, 269.64W
Thrust: 375, 415, 460, 595, 695, 800g
Efficiency (g/w): 4.83, 4.47, 4.45, 3.81, 3.48, 2.97
ESC Required: Two 25A

*Includes props, as shown in the image.

  • Kv(rpm/v) 1550.00
  • Max Current (Motor) (A) 21.40
  • Resistance (mh) 0.00
  • Max Voltage (V) 13.00
  • Power (W) 269.00
  • Shaft A(mm) 3.00
  • Length B (mm) 54.00
  • Can Diameter C(mm) 23.00
  • Can Length D(mm) 11.00
  • Total Length E(mm) 90.00
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Mahesh | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Sep 03, 2012

The motor mount part between the two motor is ill engineered gofor some other contra rotating system instead of this.

Sebbe335 | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Sep 19, 2011

Bought one to a Spitfire MK 21 that had contra rotating propps. 700gram weight and fly wery well with no torque. With the 8 propps that included the motor gets WERY hot and 7 propps dont fit in the rear mount so you cant use them.

But the second flight i noticed that the enginge was loose. It was the mount that had cracked in a weak point so the quality on them is not so good and you cant build your own mount eihter. Also make sure the propellers is well balanced.

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