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CR23M Contra Rotating BL System1550kv

CR23M Contra Rotating BL System1550kv

Discontinued Product

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Rating:
Stock:
OUT OF STOCK
Weight:
91 g
SKU:
CR23MC8-1550
Product
Description

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.

Product
Specifications

Additional Information

  • SKU:
    CR23MC8-1550
  • Brand:
    N/A
  • Shipping Weight(g)
    91.00
  • Length
    220.00
  • Width:
    30.00
  • Height:
    100.00
  • Kv(rpm/v)
    1550.00
  • Max Currents (A)
    21.40
  • Power (W):
    269.00
  • Length B (mm):
    54.00
  • Can Length D(mm)
    11.00
  • Max Voltage(V)
    13.00
  • Shaft A(mm):
    3.00
  • Unit Weight (g):
    73
  • Diameter C(mm)
    23.00
  • Total Length E(mm)
    90.00
  • Resistance (mh):
    0.00
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verified_user Quality
trending_up Value
playlist_add_check Overall
The motor mount part between the two motor is ill engineered gofor some other contra rotating system instead of this.
verified_user Quality
trending_up Value
playlist_add_check Overall
verified_user Quality
trending_up Value
playlist_add_check Overall
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.
verified_user Quality
trending_up Value
playlist_add_check Overall
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