E-flite Park 450 User Manual

Park 450 Brushless Outrunner Instructions

Thank you for purchasing the E-flite Park 450 Brushless Outrunner motor. This motor is an ideal choice for the E-flite
Mini Ultra Stick, Mini Pulse XT, and small profile balsa 3D airplanes. The motor will provide great performance on the
scale planes such as the E-flite Taylorcraft 450.

Park 450 Brushless Outrunner Features:

• Ideal for 3D park flyers 15- to 25-ounces and scale park flyers 20- to 30-ounces using 2- to 3-cell 1200–2100mAh
Li-Po packs

• High torque alternative to inrunner brushless motors

• Includes mount, prop adapters, and mounting hardware

• Quiet, lightweight operation – just 2.5 ounces (72 g)

• External rotor design, 4mm shaft can easily be reversed for alternative motor installations

• High quality construction with ball bearings and hardened steel shaft

• Slotted 12-pole outrunner design

Park 450 Specifications

Diameter: 28mm (1.1 in)
Case Length: 33mm (1.3 in)
Weight: 72g (2.5 oz)
Shaft Diameter: 4mm (.16 in)

EFLM1400

Kv: 890 (rpms per volt) Io: .69A @ 8V (no load current) Ri: .20 ohms (resistance) Continuous Current: 14A* Max Burst Current: 18A* Input Watts: 175 Cells: 6-10 Ni-MH/Ni-Cd or 2-3S Li-Po Recommended Props: 9x6 to 11x3.8 ‘Slow Flyer’ or 10x5 to 12x6 ‘Electric’ Brushless ESC: 20A (EFLA311B) or 30A (EFLA1030)

* 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.

Battery Choices:

We recommend either E-flite or Thunder Power batteries and list some possible choices for the Park 450 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 be substituted.

EFLB12502S 2S 1250mAh Li-Po,16AWG THP13502SPL2 1350mAh 2-Cell 7.4V Pro-Lite V2 Li-Po
EFLB12503S 3S 1250mAh Li-Po,16AWG THP13503SPL2 1350mAh 3-Cell 11.1V Pro-Lite V2 Li-Po
EFLB15002S 2S 1500mAh Li-Po,16AWG THP21002SPL2 2100mAh 2-Cell 7.4V Pro-Lite V2 Li-Po
EFLB15003S 3S 1500mAh Li-Po,16AWG THP21003SPL2 2100mAh 3-Cell 11.1V Pro-Lite V2 Li-Po
EFLB21002S 2S 2100mAh Li-Po,16AWG
EFLB21003S 3S 2100mAh Li-Po,16AWG

Examples of Airplane Setups:

E-flite Mini Edge 3D ARF (EFL2225)
Comments – Sport 3D and aerobatic performance with good vertical power and top speed. Also allows the use of the
lightweight THP13203SPL battery for improved power to weight ratio.
Weight w/Battery: 26 oz (735g)
Prop: 12x6 Electric (APC12060E) or 11x3.8 Slow Flyer (APC11038SF)
Battery: 1320mAh 3-Cell 11.1V LIPO (THP13203SPL) or 2100mAh 3-Cell 11.1V Li-Po (THP21003SPL)
ESC: 20A Brushless (EFLA311B)

E-flite Mini Ultra Stick ARF (EFL2250)
Comments – Excellent aerobatic performance with good power and top speed.
Weight w/Battery: 24 oz (680g)
Prop: 10x8 Electric (EFLP1080E) or 10x7 Slow Flyer (EFLP1070)
Battery: 2100mAh 3-Cell 11.1V Li-Po (THP21003SPL)
ESC: 20A Brushless (EFLA311B)

E-flite P-47D Thunderbolt 400 ARF (EFL6000)
Comments – Excellent scale and aerobatic performance with good power and top speed.
Weight w/Battery: 25 oz (710g)
Prop: 10x8 Electric (EFLP1080E)
Battery: 2100mAh 3-Cell 11.1V Li-Po (THP21003SPL)
ESC: 20A Brushless (EFLA311B)

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)

EFLA311B 20-Amp Brushless ESC (V2)
EFLA1030 30-Amp Pro SB BEC Brushless ESC
EFLA241 Gold Bullet Connector Set, 3.5mm (3)
EFLM1924 Prop Adapter w/ Collet, 4mm

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 p rope r 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 Shaft Installation

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. 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 set screw in the rotating part of the motor.

4. Slide the shaft through the motor. It may be necessary to use a small hammer to lightly tap the shaft. It is
very important that you do not bend the shaft in this process so use extreme caution to assure this does not
happen.

5. Re-install the donut washer against the bearing.

6. Re-install the shaft collar back against the washer and bearing.

7. Retighten all setscrews making sure you line up with the flat spot on the shaft.