4xxx SERIES

RCD 4720 Brushless Motor

A 4720 brushless motor with an aluminum alloy housing for 13-18 inch FPV platforms, available in 330KV, 350KV, and 420KV options, compatible with 6S-12S battery systems, with custom KV options available.

330KV
350KV
420KV
Customization Available
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RCD 4720 Brushless Motor for FPV
SPECIFICATIONS
Model4720
KV Options330KV / 350KV / 420KV (Customization Available)
Rated Voltage6-12S
No-load Current2.5A / 10V
Shaft Diameter (mm)Φ6 mm
Slots/Poles (N/P)12/14
Recommended Propeller13''-18''
Motor Dimensions56 x 47.1 mm
Motor Weight360 g
Wire400mm, #14 AWG Silicone Wire
Mounting Pattern19 x 19 mm, M4

Performance Testing Data

4720-330KV

Test Propeller: HQ15X7X3 (10S)

Throttle %SpeedRPMVoltageVCurrentAThrustgTorqueN·mIR Temp°CElectric powerWShaft powerWMotor Efficiencyg/WPropeller efficiencyg/WSystem efficiencyg/W
10%683.62544.2090.073170.02529.53.2271.7955.4699.4975.268
20%2178.40344.2091.0793930.12929.647.70229.42861.69113.3558.239
30%3407.83644.212.8829710.24529.8127.41387.43368.62211.1067.621
40%4668.23644.216.72118220.46329.9297.135226.34176.1748.056.132
50%5911.73644.21111.83129700.86530.6523.06535.5102.3785.5465.678
60%7029.34244.22217.6341821.20831.6779.634889.222114.0564.7035.364
70%8083.05644.23229.21759041.04733.31292.326886.23968.5776.6624.569
80%9069.61144.2445.83577601.399362027.741328.72565.5275.843.827
90%9926.11444.23976.85696581.871413400.0331944.8357.24.9662.841
100%10073.71444.203102.24998991.84947.54519.7131950.54143.1565.0752.19

The measurements are from RCD load-test records. Results may vary with battery, propeller, environment, and installation conditions.

4720-420KV

Test Propeller: HQ15X7X3

Throttle %SpeedRPMVoltageVCurrentAThrustgTorqueN·mIR Temp°CElectric powerWShaft powerWMotor Efficiencyg/WPropeller efficiencyg/WSystem efficiencyg/W
10%634.45533.590.0751-0.01128.42.519-0.731-29.019-1.3680.397
20%2239.81833.5871.207356-0.10228.440.54-23.924-59.013-14.888.781
30%3316.833.593.184841-0.21328.3106.951-73.982-69.174-11.3687.863
40%4471.45533.5877.2451650-0.39828.6243.338-186.363-76.586-8.8546.781
50%5655.333.58914.612767-0.64628.8490.735-382.575-77.96-7.2335.638
60%6719.833.58424.5943945-0.92829.6825.965-653.03-79.063-6.0414.776
70%7755.90933.5938.7155437-1.275311300.437-1035.551-79.631-5.254.181
80%8694.633.58657.4526973-1.62833.61929.583-1482.288-76.819-4.7043.614
90%950633.58481.4588599-2.137.32735.685-2090.479-76.415-4.1133.143
100%9681.09133.58387.3628984-2.18541.92933.878-2215.156-75.503-4.0563.062

The following measurements are from RCD load-test records. Results may vary with battery, propeller, environment, and installation conditions.

QH4720-350KV

Test Propeller: HQ15X7X3

Throttle %SpeedRPMVoltageVCurrentAThrustgTorqueN·mIR Temp°CElectric powerWShaft powerWMotor Efficiencyg/WPropeller efficiencyg/WSystem efficiencyg/W
10%673.23544.3930.049300.01125.22.1750.77635.67838.6613.793
20%2270.09844.3970.8944080.10525.339.69124.96162.88816.34510.279
30%336444.4022.449150.21725.5108.34176.44470.55911.978.446
40%4569.4644.4035.64917460.39325.8250.833188.05674.9739.2846.961
50%5793.66744.40411.31828730.66726.5502.564404.67680.5227.15.717
60%6905.5844.418.93540770.9327.7840.714672.5379.9956.0624.849
70%7983.29444.430.33655871.30429.51346.9181090.15580.9375.1254.148
80%8967.68644.39845.89474151.7232.72037.6021615.24179.2724.5913.639
90%9863.94144.39665.78491652.20437.82920.5462276.62177.9524.0263.138
100%10072.544.39470.67495462.28243.83137.5022407.0376.7183.9663.043

The following measurements are from RCD load-test records. Results may vary with battery, propeller, environment, and installation conditions.

Customization Options

  • Electrical Performance

    We can evaluate KV options and related electrical configurations based on your battery, ESC, propeller, and performance requirements.

  • Mechanical Configuration

    Discuss motor dimensions, mounting patterns, shaft diameter, and shaft length to help ensure compatibility with your airframe and installation requirements.

  • Appearance & Branding

    Customize the motor’s color and finish, and discuss logo placement, product engraving, and packaging options to align with your project or brand identity.

  • Lead Wire & Connection

    Configure lead wire length, wire gauge, wire exit direction, and connector options to suit your aircraft’s wiring layout and integration needs.

Choose a standard configuration or discuss adjustments for your project.

  • Standard Product

    For projects that match an existing model and configuration.

    • Choose from available motor models and KV options.
    • Review published specifications and test data.
    • Contact us to confirm pricing, availability, and lead time.
    Browse All Motors 

  • Custom Project

    For projects that require changes to performance, appearance, or connections.

    • Tell us about your platform and the changes you need.
    • Share your target specifications, drawings, or reference images.
    • Our engineering team will review feasibility before we prepare a quotation.
    Discuss a Custom Option 

Customization Process

Contact & Share Your Requirements

Tell us about your application, target specifications, and requested customizations.

Engineering Evaluation

Our engineering team reviews feasibility, compatibility, and any required validation.

Quotation

We prepare a quotation and estimated timeline based on the confirmed configuration, quantity, and delivery requirements.

Sample Confirmation

Review and confirm the sample’s specifications, appearance, and performance.

Production & Delivery

Once the sample is approved, we proceed with production and deliver according to the agreed schedule.