E-flite Park 300 User Manual

Park 300 Brushless Outrunner Instructions

Thank you for purchasing the E-flite Park 300 Brushless Outrunner motor. This motor is ideal for 3D
models 6-9 oz (170-255g), sport and scale models 8-12 oz (225-340g), and or models requiring up to 100
watts of power. It’s a good match for the popular class of small 3D indoor models under 10 ounces.

Park 300 Brushless Outrunner Features:

• Ideal for 3D models 6-9 oz (170-255g) and sport and scale models 8-12 oz (225-340g)

• Ideal for up to 85 watts

• Integrated prop saver design

•

High Torque alternative to inrunner brushless motors

• Includes mount, prop adapters, and mounting hardware

• Quiet, lightweight operation – just 0.8 ounces (24 g)

• External rotor design with 3.2mm shaft

• High quality construction with ball bearings and hardened steel shaft

• Slotted 12-pole outrunner design

Park 300 Specifications

Diameter: 28mm (1.1 in)
Case Length: 22mm (.87 in)
Weight: 24g (.8 oz)
Shaft Diameter: 3.2mm (.125 in)

EFLM1150

Kv: 1380 (rpms per volt) Io: .38A @ 8V (no load current) Ri: .5 ohms (resistance) Continuous Current: 7A* Max Burst Current: 9A* Cells: 6-10 Ni-MH/Ni-Cd or 2-3S Li-Po Recommended Props: 6x5 to 8x3.8 (3-cells) or Up to 10x3.8 (2-cells) ‘Slow Flyer’ Brushless ESC: 9A – 12A

* 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:

There are many Li-Po battery brands on the market with several choices for consumers. We recommend
either E-flite or Thunder Power batteries and list some possible choices for the Park 300 Brushless
Outrunner motor, depending on the airplane application.

THP4802SJPL 480mAh 2-Cell 7.4V LIPO,JST THP9002SJ 900mAh 2-Cell 7.4V LIPO,JST
THP4803SJPL 480mAh 3-Cell 11.1V LIPO,JST THP9003SJ 900mAh 3-Cell 11.1V LIPO,JST
THP7302SJ 730mAh 2-Cell 7.4V LIPO,JST EFLB1000 7.4V 860mAh 2-Cell LIPO,JST
THP7303SJ 730mAh 3-Cell 11.1V LIPO,JST EFLB1005 11.1V 860mAh 3-Cell LIPO,JST

Examples of Airplane Setups:

Indoor Profile 3D Airplane
Weight w/Battery: 6.9 oz (195g)

Prop: 8 x 3.8 Slow Flyer (APC08038SF)
Battery: 730mAh 3-Cell 11.1V LIPO (THP7303SJPL)
ESC: 10A Brushless

Comments – Extreme power and performance with longer flight time. Expect unlimited performance with
excessive power.

Indoor Profile 3D Airplane
Weight w/Battery: 8 oz (225g)

Prop: 8 x 3.8 Slow Flyer (APC08038SF)
Battery: 480mAh 3-Cell 11.1V LIPO (THP4803SJPL)
ESC: 10A Brushless

Comments – Good power and strong 3D performance. Less run time due to lower capacity battery and
higher overall flying weight.

Profile 3D Airplane
Weight w/Battery: 9 oz (255g)

Prop: 8 x 3.8 Slow Flyer (APC08038SF)
Battery: 730mAh 3-Cell 11.1V LIPO (THP7303SJPL)
ESC: 10A Brushless

Comments – Strong 3D and aerobatic performance with good vertical power and good speed.

Accessories and Spare Parts:

See our web site at
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)
EFLA248 BL Conn Set,Gold,2mm (3)
EFLM1923 Prop Adapter w/ Collet, 1/8 in
EFLM1151 Replacement Shaft: Park 300 BL Outrunner

www.E-fliteRC.com or www.horizonhobby.com for our complete line of brushless

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.

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 (EFLA248), 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 or you no longer wish to use them, never cut the motor wires. Remove
them by properly de-soldering 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