Programming Instructions

2904 Research Rd • Champaign, IL • 61822 • 800.535.5551 • horizonhobby.com

• BEC Voltage - Select the BEC output voltage. Default and available settings per ESC.

• Start-up Mode

o Normal Start-up: If this mode is selected, the motor will immediately increase in RPM to

correspond to the throttle stick input.

o Soft Start-up: If this mode is selected, the motor will gradually increase in RPM to

correspond to the throttle stick input.

TIP: We recommend using this soft start-up mode when using large diameter motors or

gear drives.

• Timing - Select Low, Medium, or High motor timing.

• Motor Rotation - Adjust the rotation direction of the motor without changing wires.

• Active Freewheeling - This option can be set to Enabled or Disabled. Freewheeling can help provide

better throttle linearity or smoother throttle response.

• Thrust Rev – Use this option to select the channel used to activate motor reversing. Reverse must

set in the Brake Type menu

• Governor Gain (Heli Mode only) - Controls how aggressively the governor maintains the set RPM -

Level 1 (less) to Level 3 (more)

• Auto Restart Time (Heli Mode only) - Set the auto-rotation bailout timing

• Restart Accel (Heli Mode only) - Controls how aggressively RPMs are recovered when performing

Auto-rotation bailout

GOVERNOR SETUP

If the governor mode is activated, the ESC will try its best to hold the rotor head speed at a fixed value

that you assign. In order for your Avian ESC to calculate the speed of the main rotor blades of your

helicopter, you need to know the motor

poles number and the gear ratio of main

drive gear vs. the pinion. Below is an

example of this screen with an Avian 100

setup for a Blade Fusion 480 model running

a 14 pole motor, 11 tooth pinion and 112

tooth main gear.

When you adjust the throttle curve, please

make sure that the motor can run at this

preset speed even if the motor load is

heaviest. Please note that the governor

mode function is automatically disabled if

the throttle volume is less than 60% or more

than 90% to allow for proper motor control

in high and low load scenarios.

Spektrum SmartLink ESC Programming

App Instructions

THROTTLE – CONTROL