Emax GT4030 500kv Outrunner Brushless Motor

The Emax GT4030 500kv is a 13.4 ounce, 500KV, 1400 watt outrunner brushless motor that is roughly equivalent to a .60 2 stroke nitro engine. It's a good choice for sport and scale airplanes weighing 5 to 10 pounds, or 3D planes up to 7 pounds.

The following set up is a good choice for many .60 size sport planes:
Emax GT4030 500kv
70A to 100A OPTO ESC
3A or 5A UBEC or a receiver battery
APC 13x6.5 prop
EZ Flite 22.2v 4200 35C Lipo Battery
This power set up provides about 8 pounds of thrust with a fresh battery.

The Emax GT4030 500kv is designed for use with 4, 5 and 6 cell Lipo batteries, and we recommend using a 70A to 100A Electronic Speed Control (ESC) with this motor.

The GT4030 500kv does not have connecotrs installed, but many of our speed controls include connectors for a motor.

MOUNTING OPTIONS: The GT4030 500kv can be mounted in front of a firewall using the included X mount and rotor end prop adapter. It can also be mounted behind a firewall, and an 8mm Prop Adapter can be purchased to mount a prop on the motor shaft. 

Propeller data for the GT4030 500kv using a 6-cell Lipo battery:
It's a good idea to balance all propellers with a Propeller Balancer before using them on this motor.
Rotating propellers are dangerous. Please stay clear of prop and wear eye protection.

APC 14 x 7E: 154 oz thrust at 60 amps (1400 watts). Avoid constant wide open throttle.

APC 13 x 6.5E: 133 oz thrust at 51 amps (1210 watts)

Master Airscrew 13 x 8 x 3: 165 oz thrust at 55 amps (1260 watts)

APC 12 x 6E: 112 oz thrust at 37 amps (890 watts)

APC 12 x 8E: 106 oz thrust at 43 amps (1040 watts)

Propeller data for the GT4030 500kv using a 5-cell Lipo battery: 

APC 16 x 8E: 171 oz thrust at 56 amps (1080 watts)

APC 15 x 8E: 147 oz thrust at 49 amps (950 watts)

APC 14 x 7E: 120 oz thrust at 44 amps (880 watts)

APC 13 x 6.5E: 105 oz thrust at 39 amps (750 watts)

Propeller data for the GT4030 500kv using a 4-cell Lipo battery:

APC 18 x 8E: 164 oz thrust at 52 amps (830 watts)

APC 17 x 8E: 138 oz thrust at 45 amps (720 watts)

APC 16 x 8E: 120 oz thrust at 39 amps (620 watts)

APC 15 x 8E: 104 oz thrust at 32 amps (510 watts)

APC 14 x 7E: 86 oz thrust at 28 amps (460 watts)

APC 14 x 8.5E: 80 oz thrust at 30 amps (480 watts)

Please be aware that the battery used can make a tremendous amount of difference in the performance of brushless motors. The above data was obtained using batteries in good condition that were fully charged. Thrust and amp draw may be less with the use of batteries rated at lower amp output, and slightly more using batteries rated for higher amp output. Other factors, such as ESC timing and variations in actual motor KV can affect the performance of brushless motors as well. We recommend the use of a Watt Meter to test the current draw of your particular power system, especially if you plan to use a prop that pushes the motor near it's maximum amp rating.

Emax GT4030 500kv Specifications:

Weight = 13.4 ounces (380 grams)

Diameter = 1.95 inch (49.5 mm)

Motor length = 2.3 inch (59.2 mm)

Shaft = 8mm x 1.2 inch

Voltage = 12 - 26 volts (4, 5 or 6 cell Lipo)

Current = maximum of 65 amps or 1400 watts for 30 seconds

KV = 500

Mounting holes are spaced 30mm on center and are tapped for 4mm screws