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The Firepower 400 Slofly (2830-09) is a 1.9 ounce, 400 class, 850KV outrunner brushless motor capable of producing 27 oz of thrust using an 11 inch prop. This motor is .3 ounce lighter than a 350 brushed/geared motor, but provides almost twice the thrust. It's a good choice for small to medium size parkflyers, and will give you nice long flight times due to it's high efficiency.
We have the Firepower 400 Slofly installed on a MS Composite Blade Dancer, and it flies the model extremely well. We use the Power Up 11.1v 1300 20C Lipo battery and an APC 10 x 4.7 prop, and the Blade Dancer easily climbs straight up with this power set up.
We recommend using a 20A to 32A ESC with the Firepower 400 Slofly.
Good prop choices for the Firepower 400 Slofly are the APC 10 x 4.7 or 11 x 4.7 for slow fliers and 3D planes, and the APC 10 x 7E or the GWS 1170 for sport planes.
Good battery choices for the Firepower 400 Slofly include the EZ Flite 11.1v 1300 30C to 11.1v 1800 30C Lipos.
If you need a brushless motor that is the same size and weight, but uses smaller propellers, please check out the Firepower 400 Sport (2830-11).
The Firepower 400 Slofly comes with 3.5mm male connectors installed, and female connectors are included for your ESC.
MOUNTING OPTIONS: The Firepower 400 Slofly can be mounted in front of a firewall using the 2800 series 'X' mount and the 2800 series rotor end prop adapter, which are included with the motor. You can also mount it behind a firewall, and a 3.17mm prop adapter can be purchased to mount a prop on the motor shaft. The GWS Plastic Outrunner Mount can be purchased to mount the Firepower 400 Slofly on a 10mm stick.
Propeller test data for the Firepower 400 Slofly using a 3-cell Lipo battery:
It's a good idea to balance all propellers with a Propeller Balancer before using them on this motor. TP propellers are available in our store, and are nearly identical in performance to APC props. Rotating propellers are dangerous. Please stay clear of prop and wear eye protection.
TP 11 x 3.8SF: 27 oz thrust at 12.5 amps with a pitch speed of 23 mph.
APC 11 x 4.7: 27 oz thrust at 13.5 amps with a pitch speed of 25 mph.
GWS EP1147: 28 oz thrust at 14 amps with a pitch speed of 26 mph.
TP 11 x 5.5E: 27 oz thrust at 12.5 amps with a pitch speed of 33 mph.
APC 11 x 5.5E: 27 oz thrust at 12.5 amps with a pitch speed of 33 mph.
GWS EP1170: 27 oz thrust at 13.5 amps with a pitch speed of 39 mph.
APC 10 x 4.7SF: 25 oz thrust at 12.5 amps with a pitch speed of 28 mph.
GWS EP1047: 26 oz thrust at 13 amps with a pitch speed of 28 mph.
TP 10 x 5E: 24 oz thrust at 11 amps with a pitch speed of 34 mph.
APC 10 x 5E: 24 oz thrust at 11 amps with a pitch speed of 34 mph.
GWS EP1060: 24 ounces of thrust at 11 amps with a pitch speed of 41 mph.
APC 10 x 7E: 24 oz thrust at 12.5 amps with a pitch speed of 43 mph.
TP 9 x 6: 21 oz thrust at 9.5 amps with a pitch speed of 43 mph.
The above data is a result of our own testing using a fully charged 3-cell 1800mah 25C (45 amp) Lipo battery. 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.
Firepower 400 Slofly Specifications:
Weight = 1.9 ounces (54 grams)
Diameter = 1.1 inch (28 mm)
Motor length = 1.2 inch (30 mm)
Shaft = 1/8 inch x 0.5 inch (3.17mm x 13 mm)
Voltage = 7.2 - 13.0
Current = maximum of 14 amps for 30 seconds
KV = 850
Mounting holes are spaced 16mm and 19mm on center and are tapped for 3mm screws.
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