E-flite Power 46 Brushless Outrunner Motor 670Kv

Introduction

This manual provides instructions for the E-flite Power 46 Brushless Outrunner Motor 670Kv (EFLM4046A). This motor is designed for use in remote-controlled aircraft, offering an electric alternative to .40 to .46-size glow engines. It is suitable for various aircraft types, including sport, scale, and 3D models within specified weight ranges.

Key Features

• Equivalent to 40- to 46-size glow engines for aircraft weighing 4–7 lb (1.8–3.2 kg).
• Suitable for 25- to 40-size 3D airplanes up to 5 lb (2.2 kg).
• Capable of providing up to 925 watts of power.
• High-torque, direct-drive outrunner design.
• Includes mount, prop adapters, and mounting hardware.
• External rotor design with a 6mm shaft, reversible for various installations.
• Slotted 14-pole outrunner configuration.
• Constructed with ball bearings and a hardened steel shaft for durability.

Package Contents

The E-flite Power 46 Brushless Outrunner Motor package includes the following components:

• E-flite Power 46 Brushless Outrunner Motor 670Kv
• Motor mount
• Propeller adapters
• Mounting hardware (screws, washers, nuts)

Image: E-flite Power 46 Brushless Outrunner Motor with included mount, prop adapters, and various mounting hardware components.

Required for Operation

To operate the Power 46 motor, the following additional components are required:

• 60A brushless Electronic Speed Controller (ESC)
• 4S–5S Li-Po battery or 12- to 16-cell Ni-MH/Ni-Cd battery
• Propeller: 12x8 to 14x10 (size dependent on aircraft and desired performance)

Installation

1. Motor Mounting: Securely attach the motor to your aircraft's motor mount using the provided hardware. Ensure the motor is aligned correctly and all screws are tightened to prevent vibration. The 6mm shaft can be reversed if an alternative motor installation configuration is required.
2. ESC Connection: Connect the three motor wires to the corresponding wires on your brushless ESC. The order of connection may affect motor rotation direction; if the motor spins in the wrong direction, swap any two of the three motor wires.
3. Propeller Installation: Attach the propeller to the motor shaft using the appropriate prop adapter. Ensure the propeller is balanced and securely fastened. An unbalanced propeller can cause excessive vibration and damage to the motor or aircraft.

Operating Instructions

Before operating the motor, ensure all connections are secure and the battery is fully charged. Always perform a range check of your radio system and verify correct control surface response before flight.

• Power System Setup: The motor is compatible with 4S–5S Li-Po or 12- to 16-cell Ni-MH/Ni-Cd batteries. Select a battery and ESC combination that can safely deliver the required current for your chosen propeller and aircraft weight.
• Propeller Selection: Refer to the specifications for recommended propeller sizes (12x8 to 14x10). The optimal propeller will depend on your aircraft's weight, wing loading, and desired flight characteristics (e.g., speed vs. thrust).
• Initial Run: Conduct a brief test run of the motor at low throttle to confirm correct rotation and smooth operation. Gradually increase throttle to full power, monitoring for unusual noises or excessive heat.

Example Airplane Setups (Note: All data measured at full throttle. Actual performance may vary depending on battery and flight conditions):

• Hangar 9 Ultra Stick 40 ARF (HAN1675 / HAN1690) Option 1:
  Motor: Power 46
  ESC: Castle Creations Phoenix 60 (Standard settings with 12V Soft Li-Po cutoff and no brake)
  Prop: APC 13x8E
  Battery: Thunder Power PRO LITE 6000mAh 4S3P (THP60004S3PPL)
  Flying Weight w/Battery: 5.8 lb
  Amps: 51.5
  Volts: 14
  Watts: 925
  Input Watts/Pound: 159.5
  RPM: 8900

Image: A person operating a remote-controlled airplane over a body of water, demonstrating typical usage.

Maintenance

Regular maintenance ensures optimal performance and longevity of your motor.

• Inspection: Periodically inspect the motor for any signs of damage, loose connections, or wear. Check the motor shaft for bends and ensure the propeller adapter is secure.
• Cleaning: Keep the motor free from dirt, dust, and debris. Use compressed air or a soft brush to clean the motor, especially around the bearings and cooling fins.
• Bearings: The motor uses ball bearings. If you notice increased noise or resistance during rotation, the bearings may need lubrication or replacement. Consult a qualified technician if unsure.
• Connections: Ensure all electrical connections (motor to ESC, ESC to battery) are clean and secure. Loose connections can cause intermittent power loss or overheating.

Troubleshooting

If you encounter issues with your Power 46 motor, consider the following troubleshooting steps:

• Motor Not Spinning:
  • Check battery charge level.
  • Verify all electrical connections are secure.
  • Ensure the ESC is properly armed and calibrated with your radio.
  • Inspect motor wires for damage.
• Motor Runs Roughly or with Reduced Power:
  • Check for propeller damage or imbalance.
  • Ensure battery is fully charged and capable of delivering sufficient current.
  • Inspect motor for physical damage or debris obstructing rotation.
  • Verify ESC settings are appropriate for the motor.
• Motor Overheating:
  • Ensure proper airflow for cooling.
  • Check if the propeller size is too large, causing excessive load.
  • Verify ESC timing settings are correct.
  • Ensure battery C-rating is sufficient for the current draw.

Specifications

Warranty and Support

For warranty information or technical support regarding your E-flite Power 46 Brushless Outrunner Motor, please contact Horizon Hobby, the manufacturer. Retain your proof of purchase for any warranty claims.

Manufacturer: Horizon Hobby