E-flite Park 400 User Manual

Park 370 & Park 400 Inrunner Brushless Motor Instructions

Park 370 Brushless Motor Features:

• Upgrade for your Speed 280 and Speed 370 applications

• Excellent Motor for small airplanes between 10 oz – 14 oz (280 g – 400 g)

• Adapter plate included for mounting to GWS and E-flite style gearboxes

• Prop adapter and gold-plated connectors included

• Slotless 2-pole design

Park 370 Specifications

Diameter: 20mm (.80 in.)
Case Length: 30mm (1.2 in.)
Weight (no gearbox): 48g (1.7 oz.)
Shaft Diameter: 2mm (.08 in)

EFLM1000 EFLM1005 EFLM1010

Kv: 4100 (rpms per volt) Kv: 5400 (rpms per volt) Kv: 3600 (rpms per volt)
Io: 1A @10V (no load current) Io: 1.3A @10V (no load current) Io: .8A @10V (no load current)
Ri: .1ohms (resistance) Ri: .12ohms (resistance) Ri: .29 ohms (resistance)
Continuous Current: 8A* Continuous Current: 10A* Continuous Current: 7A*
Max Burst Current: 13A* Max Burst Current: 15A* Max Burst Current: 11A*
Cells: 6-10 NiCd/NiMh or 2-3 Li-Po Cells: 4-8 NiCd/NiMh or 2 Li-Po Cells: 6-10 NiCd/NiMh or 2-3 Li-Po
Recommended Gearbox: 6.6:1 Recommended Gearbox: 5.33:1 or 6.6:1 Recommended Gearbox: 5.33:1
Recommended Props: 9x6 to 12x6 Recommended Props: 9x4.7 to 12x6 Recommended Props: 9x4.7 to 11x4.7
Brushless ESC: 10- to 25-Amp (EFLA311) Brushless ESC: 10- to 25-Amp (EFLA311) Brushless ESC: 10- to 25-Amp (EFLA311)
Includes: 10T & 12T Pinion Gears Includes: 10T & 12T Pinion Gears Includes: 10T & 12T Pinion Gears
E-flite Plane: Tribute, Ultimate, Yak54F E-flite Plane: none recommended E-flite Plane: Gypsy

Park 400 Brushless Motor Features:

• Upgrade for your Speed 400 applications

• Excellent motor for small airplanes between 12 oz – 26 oz (340 g – 740 g)

• Adapter plate included for mounting to GWS and E-flite style gearboxes

• Prop adapter and gold-plated connectors included

• Slotless 2-pole design

Park 400 Specifications

Diameter: 20mm (.80 in.)
Case Length: 40mm (1.6 in.)
Weight (no gearbox): 68 g (2.4 oz)
Shaft Diameter: 2mm (.08 in)

EFLM1100 EFLM1105

Kv: 4200 (rpms per volt) Kv: 3700 (rpms per volt)
Io: 1.8A @ 10V (no load current) Io: .8A @10V (no load current)
Ri: .24 ohms (resistance) Ri: .11 ohms (resistance)
Continuous Current: 18A* Continuous Current: 15A*
Max Burst Current: 24A* Max Burst Current: 20A*
Cells: 6-10 NiCd/NiMh or 2-3 Li-Po Cells: 6-10 NiCd/NiMh or 2-3 Li-Po
Recommended Gearbox: 6.6:1 Recommended Gearbox: 5.33:1 or 6.6:1
Recommended Props: 10x4.7 to 12x6 Recommended Props: 9x7 to 12x6
Brushless ESC: 20- to 25-Amp (EFLA311) Brushless ESC: 20- to 25-Amp (EFLA311)
Includes: 10T & 12T Pinion Gears Includes: 10T & 12T Pinion Gears
E-flite Plane: Mini Funtana, Mini Edge E-flite Plane: Mini Funtana, Mini Edge

* Maximum Operating Temperature: 220 degrees Fahrenheit
* Adequate cooling is required for all motor operation at maximum current levels.
* Maximum Burst Current duration is 5 seconds. Adequate time between maximum burst intervals is required.

Installation of Pinion Gear & Gearbox:

For your convenience, this motor includes both a 10 Tooth and a 12 Tooth pinion gear. It will be necessary for you to install the pinion on the shaft. In some E-flite airplanes,
a pinion gear is also included with the included gearbox. E-flite recommends you use the pinion gear included with your gearbox for the best set-up.

The 10 Tooth pinion is for use with an E-flite (EFLM221) or GWS ‘D’ gearbox with 6.6:1 gear ratios. A gearbox with a 6.6:1 ratio has a 66 Tooth spur gear on the gearbox and
the motor uses a 10 Tooth pinion gear installed on the shaft. The 12 Tooth pinion is for use with an E-flite (EFLM216) or GWS ‘C’ gearbox with 5.33:1 gear ratios. A gearbox
with a 5.33:1 ratio has a 64 Tooth spur gear on the gearbox and the motor uses a 12 Tooth pinion gear installed on the shaft. The E-flite spur gears are a .4 module.

When installing motors into the E-flite gearbox, it is very important that your gear mesh is correct and the gear’s mesh is smooth with no binding. The E-flite gearbox features
adjustable slotted mounting holes so that you can ensure your gear mesh is correct. Remember, if your mesh is too loose or too tight, it may strip the gears. One suggestion
may be to insert the polybag included with the motor or a small piece of paper in between the pinion and spur gear as you are installing them. Tighten and secure the screws
to the gearbox. Always make sure the screws are long enough so they have properly seated into the motor. You can easily pull the polybag or paper out by rotating the shaft
until it comes out. Be certain to check the mesh at multiple points on the spur gear before finalizing the motor mounting position in the gearbox. To extend the life of your
gearbox, we also recommend using a small amount of grease, such as lithium grease, on the spur gear.

Once a pinion is installed on the shaft, it will be necessary to remove the pinion from the motor shaft if you want to use the motor with a different gearbox than the ones
specified above. The gear mesh will bind and the motor will not operate properly if you have incorrect gear ratios. We recommend using a gear puller for this step for the
safest removal of the pinion gear. Never reuse a pinion gear that has been removed from a shaft.

Installing Pinion Gear

1. Align pinion on end of shaft and press fit using a vise for proper installation.

2. Support the aft bearing and shaft using a small hardwood block to prevent both from separating from the case.

3. Be careful you do not crimp the motor wires in the process and make sure they are safely out of the way.

NOTE: For a more secure press fit, you may add Loctite® Threadlocker Green to the inside of the pinion before installation.

Removing Pinion Gear

1. To remove the pinion gear, it is recommended to always use a gear puller to prevent damage to the pinion and shaft. We recommend the E-flite Pinion Puller
(EFLA212).

NOTE: Never reuse a pinion gear once it has been removed from the shaft.

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. Recommended controllers brands include E-flite (EFLA311) and Castle.

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. 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.
Note: 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.

Warranty and Repair Policy:

The Park 370 and Park 400 Brushless Motors are guaranteed to be free from original manufacturing defects in material and workmanship at the date of purchase. No term
warranty applies to this product. This warranty does not cover any component parts damaged by use, misuse, unauthorized service or any form of modification. Horizon
Hobby assumes no liability for damages caused during the installation of this motor. At no time will Horizon Hobby be responsible for collateral or incidental damages caused
during the operation of this motor. We reserve the right to change or modify this warranty at any time.

To speak to a service technician, call [phone].

Warranty Repairs:

To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase date. Providing that warranty conditions have been met, your motor
will be repaired free of charge.

Non-Warranty Repairs:

Should your repair cost exceed 50% of the retail purchase cost, you will be provided with an estimate advising you of your options. Any return freight for non-warranty repairs
will be billed to the customer. For non-warranty repairs, please advise us of the credit card that you prefer to use. Horizon Service Center accepts Visa or MasterCard. Include
your card number and the expiration date. Horizon Service Center also accepts money orders.

If your motor needs to be repaired, ship the motor in its original box (freight prepaid) to:

Horizon Service Center
Attn: E-flite™ Service Center
4105 Fieldstone Rd.
Champaign, IL 61822

Include your complete name and address information inside the carton, as well as clearly writing it on the outer label/return address area. Include a brief summary of the
difficulty. Date your correspondence and be sure that your name and address appear on this enclosure. Also, please include a phone number where you can be reached
during the business day.

Accessories:

See our web site at www.horizonhobby.com or www.e-fliterc.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. E-flite also offers a complete line of brushless speed controls and accessories that can be can be purchased at your local hobby
shop or on-line.

EFLA311 20-Amp Brushless ESC
EFLA110 Power Meter (measures power output in amps, volts, watts, and capacity)
EFLA241 Gold Bullet Connector Set, 3.5mm (3)
EFLM1920 Prop Adapter w/ Collet, 2mm
EFLM1914 Prop Saver

E-flite is an exclusive brand of

Horizon Hobby, Inc.

4105 Fieldstone Road

Champaign, IL 61822

[phone]

www.horizonhobby.com

© 2004 Horizon Hobby, Inc