Firepower 40 Sport (4250-06) Outrunner Brushless Electric Motor

Firepower  40 Sport (4250-06) Outrunner Brushless Electric Motor
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  • Item #: E-315

The Firepower 40 Sport (4250-06) is a 7.0 ounce, 600kv, 700 watt outrunner brushless motor that is roughly equivalent to .40 to .46 two stroke nitro engines. It's a good choice for sport and scale airplanes weighing 3 to 6 pounds, or 3D planes up to 4 pounds.

The following set up is a good choice for many 40 class sport planes:

Firepower 40 Sport
Sky Power 60A ESC with Switchmode BEC
Extension Wires for ESC to Motor -- 4mm male connectors to 3.5mm female connectors(optional)
APC 11x5.5E prop
22.2v 4200 35C Lipo battery (You can also use two 11.1v Lipo batteries connected in series with a Series Battery Harness)
This power set up provides about 5 1/2 pounds of thrust with a fresh battery.
 

Here is a nice set up for a 3 lb 3D model:

Firepower 40 Sport
Sky Power 60A ESC with Switchmode BEC
Extension Wires for ESC to Motor -- 4mm male connectors to 3.5mm female connectors(optional)
APC 13x6.5E prop
14.8v 2600 35C Lipo battery

This provides over 4 lbs of thrust in a nice light power package.

The Firepower 40 Sport comes with 3.5mm male connectors installed, and female connectors are included for your ESC. 

Mounting Options: The Firepower 40 Sport 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 a 5mm prop adapter can be purchased for mounting a prop on the motor shaft. 

Propeller Test Data for the Firepower 40 Sport Motor:

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.

Battery Size 

Propeller Size    Thrust (oz.)  Amps   Watts 
6-Cell 22.2v  APC 11 x 5.5E  90 oz.  29 amps   620 watts 
5-Cell 18.5v APC 13 x 6.5E  98 oz.  38 amps  670 watts
5-Cell 18.5v APC 12 x 6E  90 oz.  32 amps  580 watts
4-Cell 14.8v APC 15 x 8E  98 oz.  44 amps  600 watts
4-Cell 14.8v APC 14 x 7E  80 oz.  33 amps  420 watts
4-Cell 14.8v  APC 13 x 8E  70 oz.  31 amps  420 watts
4-Cell 14.8v  APC  13 x 6.5E  69 oz.  26 amps  380 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.

Firepower 40 Sport Specifications:

Weight = 7.0 ounces (198 grams)

Diameter = 1.65 inch (42 mm)

Motor length = 1.9 inch (48 mm)

Shaft = 5mm x 0.9 inch

Voltage = 12.0 - 26.0 volts (4, 5 or 6 cell Lipo)

Current = maximum of 45 amps or 700 watts for 30 seconds

KV = 600

Mounting holes are spaced 25mm on center and are tapped for 4mm screws

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Price $36.95
Availability In-Stock
# Available 10

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