E-flite Power 10 User Manual

Power 10 Brushless Outrunner Instructions

Thank you for purchasing the E-flite Power 10 Brushless Outrunner motor. The Power 10 is designed to deliver clean and quiet power for 10-size sport and
scale airplanes weighing 32- to 48-ounces (910- to 1360-grams), 3D airplanes 28- to 36-ounces (790- to 1020-grams), or models requiring up to 450 watts
of power. It’s an especially good match for the E-flite Ultimate 20-300 10e.

Power 10 Brushless Outrunner Features:

• Equivalent to a 10-size glow engine for 32- to 48-ounce (910- to 1360-gram) airplanes

• Ideal for 3D airplanes 28- to 36-ounces (790- to 1020-gram)

• Ideal for models requiring up to 450 watts of power

• High torque, direct drive alternative to inrunner brushless motors

• Includes mount, prop adapters, and mounting hardware

• Quiet, lightweight operation

• External rotor design, 5mm shaft can easily be reversed for alternative motor installations

• High quality construction with ball bearings and hardened steel shaft

• Slotted 12-pole outrunner design

Power 10 Specifications

Diameter: 35mm (1.4 in)
Case Length: 42mm (1.6 in)
Weight: 122g (4.3 oz)
Shaft Diameter: 5mm (.2 in)

EFLM4010A

Kv: 1100 (rpms per volt)
Io: 2.10A @ 10V (no load current)
Ri: .04 ohms (resistance)
Continuous Current: 32A*
Max Burst Current: 42A*
Watts: up to 450
Cells: 2-3S Li-Po or 6-10 Ni-MH/Ni-Cd
Recommended Props: 10x5 to 12x6 Electric
Brushless ESC: 40 Amp

* Maximum Operating Temperature: 220 degrees Fahrenheit
* Adequate cooling is required for all motor operation at maximum current levels.
* Maximum Burst Current duration is 15 seconds. Adequate time between maximum burst intervals is required for proper cooling and to avoid overheating
the motor.
* Maximum Burst Current rating is for 3D and limited motor run flights. Lack of proper throttle management may result in damage to the motor since
excessive use of burst current may overheat the motor.

Determine a Model’s Power Requirements:

1. Power can be measured in watts. For example: 1 horsepower = 746 watts

2. You determine watts by multiplying ‘volts’ times ‘amps’. Example: 10 volts x 10 amps = 100 watts

Volts x Amps = Watts

3. You can determine the power requirements of a model based on the ‘Input Watts Per Pound’ guidelines found below, using the flying weight of the model (with battery):

• 50-70 watts per pound; Minimum level of power for decent performance, good for lightly loaded slow flyer and park flyer models

• 70-90 watts per pound; Trainer and slow flying scale models

• 90-110 watts per pound; Sport aerobatic and fast flying scale models

• 110-130 watts per pound; Advanced aerobatic and high-speed models

• 130-150 watts per pound; Lightly loaded 3D models and ducted fans

• 150-200+ watts per pound; Unlimited performance 3D and aerobatic models

NOTE: These guidelines were developed based upon the typical parameters of our E-flite motors. These guidelines may vary depending on other motors and factors such as
efficiency and prop size.

4. Determine the Input Watts Per Pound required to achieve the desired level of performance:
Model: E-flite Ultimate 20-300

Estimated Flying Weight w/Battery: 2.5 lbs
Desired Level of Performance: 150-200+ watts per pound; Unlimited performance 3D and aerobatics

2.5 lbs x 150 watts per pound = 375 Input Watts of total power (minimum)

required to achieve the desired performance

5. Determine a suitable motor based on the model’s power requirements. The tips below can help you determine the power capabilities of a particular motor and if it can provide
the power your model requires for the desired level of performance:

• Most manufacturers will rate their motors for a range of cell counts, continuous current and maximum burst current.

• In most cases, the input power a motor is capable of handling can be determined by:

Average Voltage (depending on cell count) x Continuous Current = Continuous Input Watts
Average Voltage (depending on cell count) x Max Burst Current = Burst Input Watts

HINT: The typical average voltage under load of a Ni-Cd/Ni-MH cell is 1.0 volt. The typical average voltage under load of a Li-Po cell is 3.3 volts. This means the typical average
voltage under load of a 10 cell Ni-MH pack is approximately 10 volts and a 3 cell Li-Po pack is approximately 9.9 volts. Due to variations in the performance of a given battery, the
average voltage under load may be higher or lower. These however are good starting points for initial calculations.

Model: E-flite Ultimate 20-300 10e
Estimated Flying Weight w/Battery: 2.5 lbs
Total Input Watts Required for Desired Performance: 375 (minimum)

Motor: Power 10
Max Continuous Current: 32A*
Max Burst Current: 42A*
Cells (Li-Po): 3

3 Cells, Continuous Power Capability: 10.5 Volts (3 x 3.5) x 32 Amps = 336 Watts

3 Cells, Max Burst Power Capability: 10.5 Volts (3 x 3.5) x 42 Amps = 441 Watts

Per this example, the Power 10 motor (when using a 3S Li-Po pack) can handle up to 441 watts of input power, readily capable of powering the Ultimate 20-300 with the desired
level of performance (requiring 375 watts minimum). You must however be sure that the battery chosen for power can adequately supply the current requirements of the system
for the required performance.

Battery Choices:

We recommend either E-flite or Thunder Power batteries and list some possi b le choices for the Power 10 Brushless Outrunner motor, all depending on the airplane application.
Battery technology is constantly changing and manufacturers are improving and updating older packs with new ones so the list below may generally have new substitutions.

THP21002SPL2 2100mAh 2S 7.4V Pro-Lite V2 Li-Po, 16AWG THP22503SP30 2250mAh 3S 11.1V Pro Power 30C Li-Po, 13AWG
THP21003SPL2 2100mAh 3S 11.1V Pro-Lite V2 Li-Po, 13AWG THP27003SP30 2700mAh 3S 11.1V Pro Power 30C Li-Po, 12AWG
THP26002SPL2 2600mAh 2S 7.4V Pro-Lite V2 Li-Po, 13AWG EFLB21003S 2100mAh 3S 11.1V 20C Li-Po, 13AWG EC3
THP26003SPL2 2600mAh 3S 11.1V Pro-Lite V2 Li-Po, 13AWG EFLB21003S30 2100mAh 3S 11.1V 30C Li-Po, 13AWG EC3

Examples of Airplane Setups:

Please see our web site for the most up-to-date information and airplane setup examples.
NOTE: All data measured at full throttle. Actual performance may vary depending on battery and flight conditions.

E-flite Brio 10

Motor: Power 10
ESC: E-flite 40A Brushless V2 (EFLA311B)
Prop: APC 12x6E (APC12060E)
Battery: Thunder Power PRO LITE 2100mAh 11.1V 3-Cell (THP21003SPL)
Flying Weight w/Battery: 2.1 lbs

Amps Volts Watts Input Watts/Pound RPM

37.2 9.6 357 170 7800
Expect good speed and extreme vertical power for artistic aerobatics. Average duration is approximately 6-9 minutes depending on throttle management.

E-flite Ultimate 20-300 10e

Motor: Power 10
ESC: E-flite 40A Lite Pro SB Brushless (EFLA1040L)
Prop: APC 12x6E (APC12060E)
Battery: Thunder Power 2600mAh 11.1V 3S PRO LITE V2 Li-Po (THP26003SPL2)
Flying Weight w/Battery: 40.7 oz (2.5)

Amps Volts Watts Input Watts/Pound RPM

40.2 10.7 430 172 8350
Expect ballistic power very strong vertical performance ideal for pulling out of hovers. Average duration is approximately 5-8 minutes depending on throttle management.

Accessories:

See our web site at

www.E-fliteRC.com or www.horizonhobby.com for our complete line of brushless motors. We have posted a specification comparison sheet on our web site

so you can compare the different motors we offer.
EFLA110 Power Meter (measures power output in amps, volts, watts, and capacity)

EFLA241 Gold Bullet Connector Set, 3.5mm (3)
EFLM1925 Prop Adapter w/ Collet, 5mm
EFLA1040L 40-Amp Lite Pro Switch-mode Brushless ESC
EFLM40101 Shaft: Power 10 BL Outrunner
EFLM40102 X-Mount

Operating Instructions:

1. This brushless motor requires the use of a sensorless brushless speed control. Failure to use the correct speed control may result in damage to the motor and/or
speed control. Please be sure the timing and PWM switching frequency is set properly on your controller.

2. When mounting the motor, be sure the correct length of screws are used so damage to the inside of the motor will not occur. We suggest you use the mounting
hardware included with your motor. The use of long screws will damage the motor.

3. You may connect the three motor wires directly to the controller with solder or use connectors such as gold plated brushless bullet connectors (EFLA241), which will
also need to be soldered properly to your wires. The three motor wires can be connected in any order to the three output wires or output port on a sensorless
brushless speed control. Be sure to use heat shrink tubing to properly insulate the wires so the wires will not short. Shorting may damage the motor and speed
control.

4. If you add connectors and you no longer wish to use them, never cut the motor wires. Remove them by properly desoldering them. Shortening the motor wires is
considered an improper modification of the motor and may cause the motor to fail.

5. When you connect the motor to the esc, check the rotation direction of the motor. If you find the rotation is reversed, switching any two motor wires will reverse
the direction so the motor rotates properly.

6. Proper cooling of the motor is very important during operation. New technology has brought much higher capacity batteries with higher discharge rates, which can
cause extreme motor temperatures during operation. It is the responsibility of the user to monitor the temperature and prevent overheating. Overheating of the motor
is not covered under any warranty.

7. You can install the propeller on the motor shaft after you have confirmed proper rotation direction. Also consult the instruction included with your sensorless electronic
speed control for proper adjustments and timing.

8. Once the battery is connected to the motor, please use extreme caution. Stay clear of the rotating propeller since spinning propellers are very dangerous as the
motors produce high amounts of torque.

9. Never disassemble the motor. This will void any warranty.

Reversing the Shaft:

This Outrunner motor has a shaft, which exits through the rotating part of the motor. If you want to reverse the shaft to exit through the fixed part of the motor, follow these
instructions carefully for changing the shaft installation. Be sure to use the correct sized wrench or you may strip the set screw. NOTE: The user assumes all liability for damage
that may occur.

1. Loosen the set screw on the shaft collar and remove the collar from its location against the bearing.

2. Remove the small black donut washer that rests against the bearing.

3. Loosen the two set screws in the rotating part of the motor.