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    Display : All categories 0 Power Systems 765 Electric Motors 431 Plane Motors 169

    CR23M Contra Rotating BL System1550kv

    CR23M Contra Rotating BL System1550kv

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    CR23M Contra Rotating BL System1550kv

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    $49.28
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    SKU:
    CR23MC8-1550
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    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
    • 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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    Dimension Diagram Guide

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    Reviews

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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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